JP7795731B2 - Pharmaceutical compositions containing dipeptides - Google Patents
Pharmaceutical compositions containing dipeptidesInfo
- Publication number
- JP7795731B2 JP7795731B2 JP2020515566A JP2020515566A JP7795731B2 JP 7795731 B2 JP7795731 B2 JP 7795731B2 JP 2020515566 A JP2020515566 A JP 2020515566A JP 2020515566 A JP2020515566 A JP 2020515566A JP 7795731 B2 JP7795731 B2 JP 7795731B2
- Authority
- JP
- Japan
- Prior art keywords
- asp
- val
- ile
- leu
- pro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
- A23L33/17—Amino acids, peptides or proteins
- A23L33/18—Peptides; Protein hydrolysates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/04—Peptides having up to 20 amino acids in a fully defined sequence; Derivatives thereof
- A61K38/05—Dipeptides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P37/00—Drugs for immunological or allergic disorders
- A61P37/02—Immunomodulators
- A61P37/06—Immunosuppressants, e.g. drugs for graft rejection
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2200/00—Function of food ingredients
- A23V2200/30—Foods, ingredients or supplements having a functional effect on health
- A23V2200/324—Foods, ingredients or supplements having a functional effect on health having an effect on the immune system
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Chemical & Material Sciences (AREA)
- Nutrition Science (AREA)
- Gastroenterology & Hepatology (AREA)
- Polymers & Plastics (AREA)
- Transplantation (AREA)
- Epidemiology (AREA)
- Mycology (AREA)
- Molecular Biology (AREA)
- Food Science & Technology (AREA)
- Pain & Pain Management (AREA)
- Rheumatology (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Peptides Or Proteins (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Description
本発明は、ジペプチドを含有する医薬又は食品組成物に関する。 The present invention relates to a pharmaceutical or food composition containing a dipeptide.
超高齢化社会により、慢性炎症が関係している糖尿病、肥満等の代謝性疾患及び動脈硬化等の循環器疾患等の生活習慣病の予防・治療に対する取り組みの重要性は大きくなっている。実際、糖尿病に対して、IL-1βシグナルの阻害やNF-κB阻害作用が開発されている。関節リウマチに代表される慢性炎症性疾患においては、TNF-α、IL-1、IL-6等の炎症性サイトカインが異常に多く産生、分泌されており、これらの炎症性サイトカイン阻害薬は優れた抗炎症剤として有用である。例えば、TNF-α阻害薬としては、インフリキシマブ等の抗体医薬が関節リウマチの治療薬として使用されている(非特許文献1)。また、IL-6阻害薬としては、抗体医薬トリシズマブが使用されている(非特許文献2)。更に、IL-1阻害薬としては、アナキンラ、リロナセプト、カナキヌマブ等のタンパク製剤や抗体医薬が開発されている(非特許文献3)。As Japan's population rapidly ages, efforts to prevent and treat lifestyle-related diseases, such as diabetes, metabolic diseases like obesity, and cardiovascular diseases like arteriosclerosis, which are all linked to chronic inflammation, are becoming increasingly important. In fact, IL-1β signaling inhibitors and NF-κB inhibitors have been developed for diabetes. In chronic inflammatory diseases such as rheumatoid arthritis, inflammatory cytokines like TNF-α, IL-1, and IL-6 are produced and secreted in abnormally high amounts, making these inflammatory cytokine inhibitors useful as effective anti-inflammatory agents. For example, antibody drugs such as infliximab are used as TNF-α inhibitors for the treatment of rheumatoid arthritis (Non-Patent Document 1). Furthermore, the antibody drug tricizumab is used as an IL-6 inhibitor (Non-Patent Document 2). Furthermore, protein preparations and antibody drugs such as anakinra, rilonacept, and canakinumab have been developed as IL-1 inhibitors (Non-Patent Document 3).
このような背景の下、本発明者は、肝臓水解物が優れたIL-1産生抑制作用を有し、サイトカイン産生抑制剤、抗炎症剤として有用であることを見出し、先に特許出願した(PCT/JP2018/006351)。
しかしながら、肝臓水解物は、アミノ酸やペプチドを多く含むとされているが、実際の有効成分は判明していない。
従って、本発明の課題は、サイトカイン産生抑制作用に基づく、新たな抗炎症剤を提供することにある。
Against this background, the present inventors have discovered that liver hydrolysates have excellent IL-1 production inhibitory effects and are useful as cytokine production inhibitors and anti-inflammatory agents, and have previously filed a patent application (PCT/JP2018/006351).
However, although liver hydrolysate is said to contain a large amount of amino acids and peptides, the actual active ingredients have not been identified.
Therefore, an object of the present invention is to provide a new anti-inflammatory agent based on the cytokine production inhibitory effect.
そこで本発明者は、新たな抗炎症剤を開発すべく検討し、肝臓水解物を動物に投与して血中に移行する難消化性ペプチドを探索し、また肝臓水解物を種々のカラムを用いてペプチドを分画し薬効評価をしてきたところ、L体アミノ酸由来でなく、特定のD体アミノ酸由来のジペプチドが見出され、当該ジペプチドがIL-1β、IL-6等のサイトカイン産生抑制作用を有することを見出し、本発明を完成した。 The inventors therefore conducted research to develop a new anti-inflammatory agent, administering liver hydrolysate to animals to search for indigestible peptides that migrate into the bloodstream. They also fractionated the peptides from the liver hydrolysate using various columns and evaluated their efficacy. As a result, they discovered a dipeptide derived from a specific D-amino acid, rather than an L-amino acid, and found that this dipeptide has the effect of inhibiting the production of cytokines such as IL-1β and IL-6, thereby completing the present invention.
すなわち、本発明は、次の〔1〕~〔15〕を提供するものである。 That is, the present invention provides the following [1] to [15].
〔1〕(D)Ile-(D)Pro、(D)Leu-(D)Pro、(D)Pro-(D)Ile、(D)Pro-(D)Leu、(D)Val-(D)Pro、(D)Pro-(D)Val、(D)Leu-(D)Hyp、(D)Ile-(D)Hyp、(D)Val-(D)Hyp、(D)Asp-(D)Ile、(D)Asp-(D)Val、(D)Asp-(D)Leu、(D)Asp-(D)Phe、(D)Ile-(L)Pro、(D)Leu-(L)Pro、(D)Pro-(L)Ile、(D)Pro-(L)Leu、(D)Val-(L)-Pro、(D)Pro-(L)Val、(D)Leu-(L)Hyp、(D)Ile-(L)Hyp、(D)Val-(L)Hyp、(D)Asp-(L)Ile、(D)Asp-(L)Val、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheから選ばれるジペプチドを有効成分とする抗炎症剤。
〔2〕有効成分が、(D)Asp-(D)Val、(D)Asp-(D)Ile、(D)Asp-(D)Leu、(D)Asp-(D)Phe、(D)Asp-(L)Val、(D)Asp-(L)Ile、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheから選ばれるものである〔1〕記載の抗炎症剤。
〔3〕(D)Ile-(D)Pro、(D)Leu-(D)Pro、(D)Pro-(D)Ile、(D)Pro-(D)Leu、(D)Val-(D)Pro、(D)Pro-(D)Val、(D)Leu-(D)Glu、(D)Ile-(D)pGlu、(D)Val-(D)pGlu、(D)Asp-(D)Ile、(D)Asp-(D)Val、(D)Asp-(D)Leu、(D)Asp-(D)Phe、(D)Ile-(L)Pro、(D)Leu-(L)Pro、(D)Pro-(L)Ile、(D)Pro-(L)Leu、(D)Val-(L)-Pro、(D)Pro-(L)Val、(D)Leu-(L)Hyp、(D)Ile-(L)Hyp、(D)Val-(L)Hyp、(D)Asp-(L)Ile、(D)Asp-(L)Val、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheから選ばれるジペプチドを有効成分とする炎症性サイトカイン産生抑制剤。
〔4〕有効成分が、(D)Asp-(D)Val、(D)Asp-(D)Ile、(D)Asp-(D)Leu、(D)Asp-(D)Phe、(D)Asp-(L)Val、(D)Asp-(L)Ile、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheから選ばれるものである〔3〕記載の炎症性サイトカイン産生抑制剤。
〔5〕(D)Ile-(D)Pro、(D)Leu-(D)Pro、(D)Pro-(D)Ile、(D)Pro-(D)Leu、(D)Val-(D)-Pro、(D)Pro-(D)Val、(D)Leu-(D)Hyp、(D)Ile-(D)Hyp、(D)Val-(D)Hyp、(D)Asp-(D)Ile、(D)Asp-(D)Val、(D)Asp-(D)Leu、(D)Asp-(D)Phe、(D)Ile-(L)Pro、(D)Leu-(L)Pro、(D)Pro-(L)Ile、(D)Pro-(L)Leu、(D)Val-(L)-Pro、(D)Pro-(L)Val、(D)Leu-(L)Hyp、(D)Ile-(L)Hyp、(D)Val-(L)Hyp、(D)Asp-(L)Ile、(D)Asp-(L)Val、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheから選ばれるジペプチドを有効成分とするIL-1産生抑制剤又はIL-6産生抑制剤。
〔6〕有効成分が、(D)Asp-(D)Val、(D)Asp-(D)Ile、(D)Asp-(L)Leu、(D)Asp-(D)Phe、(D)Asp-(L)Val、(D)Asp-(L)Ile、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheから選ばれるものである〔5〕記載のIL-1産生抑制剤又はIL-6産生抑制剤。
〔7〕(D)Ile-(D)Pro、(D)Leu-(D)Pro、(D)Pro-(D)Ile、(D)Pro-(D)Leu、(D)Val-(D)Pro、(D)Pro-(D)Val、(D)Leu-(D)Hyp、(D)Ile-(D)Hyp、(D)Val-(D)Hyp、(D)Asp-(D)Ile、(D)Asp-(D)Val、(D)Asp-(D)Leu、(D)Asp-(D)Phe、(D)Ile-(L)Pro、(D)Leu-(L)Pro、(D)Pro-(L)Ile、(D)Pro-(L)Leu、(D)Val-(L)-Pro、(D)Pro-(L)Val、(D)Leu-(L)Hyp、(D)Ile-(L)Hyp、(D)Val-(L)Hyp、(D)Asp-(L)Ile、(D)Asp-(L)Val、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheから選ばれるジペプチドを有効成分とする炎症改善用食品組成物。
〔8〕有効成分が、(D)Asp-(D)Val、(D)Asp-(D)Ile、(D)Asp-(D)Leu、(D)Asp-(D)Phe、(D)Asp-(L)Val、(D)Asp-(L)Ile、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheから選ばれるものである〔7〕記載の食品組成物。
〔9〕(D)Ile-(D)Pro、(D)Leu-(D)Pro、(D)Pro-(D)Ile、(D)Pro-(D)Leu、(D)Val-(D)-Pro、(D)Pro-(D)Val、(D)Leu-(D)Hyp、(D)Ile-(D)Hyp、(D)Val-(D)Hyp、(D)Asp-(D)Ile、(D)Asp-(D)Val、(D)Asp-(D)Leu、(D)Asp-(D)Phe、(D)Ile-(L)Pro、(D)Leu-(L)Pro、(D)Pro-(L)Ile、(D)Pro-(L)Leu、(D)Val-(L)-Pro、(D)Pro-(L)Val、(D)Leu-(L)Hyp、(D)Ile-(L)Hyp、(D)Val-(L)Hyp、(D)Asp-(L)Ile、(D)Asp-(L)Val、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheから選ばれるジペプチドを有効成分とする炎症性サイトカイン産生抑制食品組成物。
〔10〕有効成分が、(D)Asp-(D)Val、(D)Asp-(D)Ile、(D)Asp-(D)Leu、(D)Asp-(D)Phe、(D)Asp-(L)Val、(D)Asp-(L)Ile、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheから選ばれるものである〔9〕記載の食品組成物。
〔11〕(D)Ile-(D)Pro、(D)Leu-(D)Pro、(D)Pro-(D)Ile、(D)Val-(D)-Pro、(D)Pro-(D)Val、(D)Leu-(D)Glu、(D)Ile-(D)pGlu、(D)Val-(D)pGlu、(D)Asp-(D)Ile、(D)Asp-(D)Val、(D)Asp-(D)Leu、(D)Asp-(D)Phe、(D)Ile-(L)Pro、(D)Leu-(L)Pro、(D)Pro-(L)Ile、(D)Pro-(L)Leu、(D)Val-(L)-Pro、(D)Pro-(L)Val、(D)Leu-(L)Hyp、(D)Ile-(L)Hyp、(D)Val-(L)Hyp、(D)Asp-(L)Ile、(D)Asp-(L)Val、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheから選ばれるジペプチドを有効成分とするIL-1産生抑制用食品組成物又はIL-6産生抑制用食品組成物。
〔12〕有効成分が、(D)Asp-(D)Val、(D)Asp-(D)Ile、(D)Asp-(D)Leu、(D)Asp-(D)Phe、(D)Asp-(L)Val、(D)Asp-(L)Ile、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheから選ばれるものである〔11〕記載の食品組成物。
〔13〕抗炎症剤製造のための、(D)Ile-(D)Pro、(D)Leu-(D)Pro、(D)Pro-(D)Ile、(D)Pro-(D)Leu、(D)Val-(D)Pro、(D)Pro-(D)Val、(D)Leu-(D)Hyp、(D)Ile-(D)Hyp、(D)Val-(D)Hyp、(D)Asp-(D)Ile、(D)Asp-(D)Val、(D)Asp-(D)Leu、(D)Asp-(D)Phe、(D)Ile-(L)Pro、(D)Leu-(L)Pro、(D)Pro-(L)Ile、(D)Pro-(L)Leu、(D)Val-(L)-Pro、(D)Pro-(L)Val、(D)Leu-(L)Hyp、(D)Ile-(L)Hyp、(D)Val-(L)Hyp、(D)Asp-(L)Ile、(D)Asp-(L)Val、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheから選ばれるジペプチドの使用。
〔14〕炎症性疾患を治療するための、(D)Ile-(D)Pro、(D)Leu-(D)Pro、(D)Pro-(D)Ile、(D)Pro-(D)Leu、(D)Val-(D)Pro、(D)Pro-(D)Val、(D)Leu-(D)Glu、(D)Ile-(D)pGlu、(D)Val-(D)pGlu、(D)Asp-(D)Ile、(D)Asp-(D)Val、(D)Asp-(D)Leu、(D)Asp-(D)Phe、(D)Ile-(L)Pro、(D)Leu-(L)Pro、(D)Pro-(L)Ile、(D)Pro-(L)Leu、(D)Val-(L)-Pro、(D)Pro-(L)Val、(D)Leu-(L)Hyp、(D)Ile-(L)Hyp、(D)Val-(L)Hyp、(D)Asp-(L)Ile、(D)Asp-(L)Val、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheから選ばれるジペプチド。
〔15〕(D)Ile-(D)Pro、(D)Leu-(D)Pro、(D)Pro-(D)Ile、(D)Pro-(D)Leu、(D)Val-(D)-Pro、(D)Pro-(D)Val、(D)Leu-(D)Hyp、(D)Ile-(D)Hyp、(D)Val-(D)Hyp、(D)Asp-(D)Ile、(D)Asp-(D)Val、(D)Asp-(D)Leu、(D)Asp-(D)Phe、(D)Ile-(L)Pro、(D)Leu-(L)Pro、(D)Pro-(L)Ile、(D)Pro-(L)Leu、(D)Val-(L)-Pro、(D)Pro-(L)Val、(D)Leu-(L)Hyp、(D)Ile-(L)Hyp、(D)Val-(L)Hyp、(D)Asp-(L)Ile、(D)Asp-(L)Val、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheから選ばれるジペプチドの有効量を投与することを特徴とする抗炎症性疾患の治療方法。
[1] (D) Ile-(D) Pro, (D) Leu-(D) Pro, (D) Pro-(D) Ile, (D) Pro-(D) Leu, (D) Val-(D) Pro, (D) Pro-(D) Val, (D) Leu-(D) H yp, (D)Ile-(D)Hyp, (D)Val-(D)Hyp, (D)Asp-(D)Ile, (D)Asp-(D)Val, (D)Asp-(D)Leu, (D)Asp-(D)Phe, (D)Ile-(L)P An anti-inflammatory agent comprising, as an active ingredient, a dipeptide selected from (D)Pro, (D)Pro-(L)Ile, (D)Pro-(L)Leu, (D)Val-(L)-Pro, (D)Pro-(L)Val, (D)Leu-(L)Hyp, (D)Ile-(L)Hyp, (D)Val-(L)Hyp, (D)Asp-(L)Ile, (D)Asp-(L)Val, (D)Asp-(L)Leu, and (D)Asp-(L)Phe.
[2] The anti-inflammatory agent according to [1], wherein the active ingredient is selected from (D)Asp-(D)Val, (D)Asp-(D)Ile, (D)Asp-(D)Leu, (D)Asp-(D)Phe, (D)Asp-(L)Val, (D)Asp-(L)Ile, (D)Asp-(L)Leu, and (D)Asp-(L)Phe.
[3] (D) Ile-(D) Pro, (D) Leu-(D) Pro, (D) Pro-(D) Ile, (D) Pro-(D) Leu, (D) Val-(D) Pro, (D) Pro-(D) Val, (D) Leu-(D) Glu, (D)Ile-(D)pGlu, (D)Val-(D)pGlu, (D)Asp-(D)Ile, (D)Asp-(D)Val, (D)Asp-(D)Leu, (D)Asp-(D)Phe, (D)Ile-(L)Pro, ( An inflammatory cytokine production inhibitor comprising, as an active ingredient, a dipeptide selected from D)Leu-(L)Pro, (D)Pro-(L)Ile, (D)Pro-(L)Leu, (D)Val-(L)-Pro, (D)Pro-(L)Val, (D)Leu-(L)Hyp, (D)Ile-(L)Hyp, (D)Val-(L)Hyp, (D)Asp-(L)Ile, (D)Asp-(L)Val, (D)Asp-(L)Leu, and (D)Asp-(L)Phe.
[4] The inflammatory cytokine production inhibitor according to [3], wherein the active ingredient is selected from (D)Asp-(D)Val, (D)Asp-(D)Ile, (D)Asp-(D)Leu, (D)Asp-(D)Phe, (D)Asp-(L)Val, (D)Asp-(L)Ile, (D)Asp-(L)Leu, and (D)Asp-(L)Phe.
[5] (D) Ile-(D) Pro, (D) Leu-(D) Pro, (D) Pro-(D) Ile, (D) Pro-(D) Leu, (D) Val-(D)-Pro, (D) Pro-(D) Val, (D) Leu-(D) Hyp, (D)Ile-(D)Hyp, (D)Val-(D)Hyp, (D)Asp-(D)Ile, (D)Asp-(D)Val, (D)Asp-(D)Leu, (D)Asp-(D)Phe, (D)Ile-(L)Pro, (D)Le An IL-1 production inhibitor or IL-6 production inhibitor comprising, as an active ingredient, a dipeptide selected from the group consisting of u-(L)Pro, (D)Pro-(L)Ile, (D)Pro-(L)Leu, (D)Val-(L)-Pro, (D)Pro-(L)Val, (D)Leu-(L)Hyp, (D)Ile-(L)Hyp, (D)Val-(L)Hyp, (D)Asp-(L)Ile, (D)Asp-(L)Val, (D)Asp-(L)Leu, and (D)Asp-(L)Phe.
[6] The IL-1 production inhibitor or IL-6 production inhibitor according to [5], wherein the active ingredient is selected from (D)Asp-(D)Val, (D)Asp-(D)Ile, (D)Asp-(L)Leu, (D)Asp-(D)Phe, (D)Asp-(L)Val, (D)Asp-(L)Ile, (D)Asp-(L)Leu, and (D)Asp-(L)Phe.
[7] (D) Ile - (D) Pro, (D) Leu - (D) Pro, (D) Pro - (D) Ile, (D) Pro - (D) Leu, (D) Val - (D) Pro, (D) Pro - (D) Val, (D) Leu - (D) Hy p, (D)Ile-(D)Hyp, (D)Val-(D)Hyp, (D)Asp-(D)Ile, (D)Asp-(D)Val, (D)Asp-(D)Leu, (D)Asp-(D)Phe, (D)Ile-(L)Pro, A food composition for improving inflammation, comprising as an active ingredient a dipeptide selected from (D)Leu-(L)Pro, (D)Pro-(L)Ile, (D)Pro-(L)Leu, (D)Val-(L)-Pro, (D)Pro-(L)Val, (D)Leu-(L)Hyp, (D)Ile-(L)Hyp, (D)Val-(L)Hyp, (D)Asp-(L)Ile, (D)Asp-(L)Val, (D)Asp-(L)Leu, and (D)Asp-(L)Phe.
[8] The food composition according to [7], wherein the active ingredient is selected from (D)Asp-(D)Val, (D)Asp-(D)Ile, (D)Asp-(D)Leu, (D)Asp-(D)Phe, (D)Asp-(L)Val, (D)Asp-(L)Ile, (D)Asp-(L)Leu, and (D)Asp-(L)Phe.
[9] (D) Ile-(D) Pro, (D) Leu-(D) Pro, (D) Pro-(D) Ile, (D) Pro-(D) Leu, (D) Val-(D)-Pro, (D) Pro-(D) Val, (D) Leu-(D) Hyp, (D)Ile-(D)Hyp, (D)Val-(D)Hyp, (D)Asp-(D)Ile, (D)Asp-(D)Val, (D)Asp-(D)Leu, (D)Asp-(D)Phe, (D)Ile-(L)Pro, (D)L A food composition for suppressing inflammatory cytokine production, comprising as an active ingredient a dipeptide selected from the group consisting of (D)Pro-(L)Ile, (D)Pro-(L)Leu, (D)Val-(L)-Pro, (D)Pro-(L)Val, (D)Leu-(L)Hyp, (D)Ile-(L)Hyp, (D)Val-(L)Hyp, (D)Asp-(L)Ile, (D)Asp-(L)Val, (D)Asp-(L)Leu, and (D)Asp-(L)Phe.
[10] The food composition according to [9], wherein the active ingredient is selected from (D)Asp-(D)Val, (D)Asp-(D)Ile, (D)Asp-(D)Leu, (D)Asp-(D)Phe, (D)Asp-(L)Val, (D)Asp-(L)Ile, (D)Asp-(L)Leu, and (D)Asp-(L)Phe.
[11] (D)Ile-(D)Pro, (D)Leu-(D)Pro, (D)Pro-(D)Ile, (D)Val-(D)-Pro, (D)Pro-(D)Val, (D)Leu-(D)Glu, (D)Ile-(D)pGl u, (D)Val-(D)pGlu, (D)Asp-(D)Ile, (D)Asp-(D)Val, (D)Asp-(D)Leu, (D)Asp-(D)Phe, (D)Ile-(L)Pro, (D)Leu-(L)Pro, ( A food composition for inhibiting IL-1 production or a food composition for inhibiting IL-6 production, comprising as an active ingredient a dipeptide selected from D)Pro-(L)Ile, (D)Pro-(L)Leu, (D)Val-(L)-Pro, (D)Pro-(L)Val, (D)Leu-(L)Hyp, (D)Ile-(L)Hyp, (D)Val-(L)Hyp, (D)Asp-(L)Ile, (D)Asp-(L)Val, (D)Asp-(L)Leu, and (D)Asp-(L)Phe.
[12] The food composition according to [11], wherein the active ingredient is selected from (D)Asp-(D)Val, (D)Asp-(D)Ile, (D)Asp-(D)Leu, (D)Asp-(D)Phe, (D)Asp-(L)Val, (D)Asp-(L)Ile, (D)Asp-(L)Leu, and (D)Asp-(L)Phe.
[13] (D) Ile-(D) Pro, (D) Leu-(D) Pro, (D) Pro-(D) Ile, (D) Pro-(D) Leu, (D) Val-(D) Pro, (D) Pro-(D) Val, for anti-inflammatory agent production. (D)Leu-(D)Hyp, (D)Ile-(D)Hyp, (D)Val-(D)Hyp, (D)Asp-(D)Ile, (D)Asp-(D)Val, (D)Asp-(D)Leu, (D)Asp-(D)Phe, ( D) Ile-(L)Pro, (D)Leu-(L)Pro, (D)Pro-(L)Ile, (D)Pro-(L)Leu, (D)Val-(L)-Pro, (D)Pro-(L)Val, (D)Leu-(L)Hyp, ( D) Use of a dipeptide selected from He-(L) Hyp, (D) Val-(L) Hyp, (D) Asp-(L) He, (D) Asp-(L) Val, (D) Asp-(L) Leu, and (D) Asp-(L) Phe.
[14] (D)Ile-(D)Pro, (D)Leu-(D)Pro, (D)Pro-(D)Ile, (D)Pro-(D)Leu, (D)Val-(D)Pro, (D)Pro-(D)V for treating inflammatory diseases al, (D)Leu-(D)Glu, (D)Ile-(D)pGlu, (D)Val-(D)pGlu, (D)Asp-(D)Ile, (D)Asp-(D)Val, (D)Asp-(D)Leu, (D)Asp-(D)P he, (D)Ile-(L)Pro, (D)Leu-(L)Pro, (D)Pro-(L)Ile, (D)Pro-(L)Leu, (D)Val-(L)-Pro, (D)Pro-(L)Val, (D)Leu-(L)H yp, (D)Ile-(L)Hyp, (D)Val-(L)Hyp, (D)Asp-(L)Ile, (D)Asp-(L)Val, (D)Asp-(L)Leu, and (D)Asp-(L)Phe.
[15] (D) Ile-(D) Pro, (D) Leu-(D) Pro, (D) Pro-(D) Ile, (D) Pro-(D) Leu, (D) Val-(D)-Pro, (D) Pro-(D) Val, (D) Leu-(D) Hyp , (D)Ile-(D)Hyp, (D)Val-(D)Hyp, (D)Asp-(D)Ile, (D)Asp-(D)Val, (D)Asp-(D)Leu, (D)Asp-(D)Phe, (D)Ile-(L)Pro, (D)L A method for treating an inflammatory disease, comprising administering an effective amount of a dipeptide selected from (D)eu-(L)Pro, (D)Pro-(L)Ile, (D)Pro-(L)Leu, (D)Val-(L)-Pro, (D)Pro-(L)Val, (D)Leu-(L)Hyp, (D)Ile-(L)Hyp, (D)Val-(L)Hyp, (D)Asp-(L)Ile, (D)Asp-(L)Val, (D)Asp-(L)Leu, and (D)Asp-(L)Phe.
本発明に用いられるジペプチドは、D体アミノ酸由来であることから難消化性であり、血中に長時間存在し、IL-1産生抑制作用及びIL-6産生抑制作用を有することから、サイトカイン産生抑制用、抗炎症用の医薬及び食品組成物として有用である。 The dipeptides used in the present invention are derived from D-amino acids and are therefore indigestible, remain in the blood for a long time, and have the effect of inhibiting IL-1 production and IL-6 production, making them useful as pharmaceuticals and food compositions for inhibiting cytokine production and as anti-inflammatory agents.
本発明の抗炎症剤の有効成分であるジペプチドは、(D)Ile-(D)Pro、(D)Leu-(D)Pro、(D)Pro-(D)Ile、(D)Pro-(D)Leu、(D)Val-(D)-Pro、(D)Pro-(D)Val、(D)Leu-(D)Hyp、(D)Ile-(D)Hyp、(D)Val-(D)Hyp、(D)Asp-(D)Ile、(D)Asp-(D)Val、(D)Asp-(D)Leu、(D)Asp-(D)Phe、(D)Ile-(L)Pro、(D)Leu-(L)Pro、(D)Pro-(L)Ile、(D)Pro-(L)Leu、(D)Val-(L)-Pro、(D)Pro-(L)Val、(D)Leu-(L)Hyp、(D)Ile-(L)Hyp、(D)Val-(L)Hyp、(D)Asp-(L)Ile、(D)Asp-(L)Val、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheから選ばれるジペプチドであり、このうち経口投与による血中への移行性、作用持続性及び抗炎症作用の点から、(D)Asp-(D)Val、(D)Asp-(D)Ile、(D)Asp-(D)Leu、(D)Asp-(D)Phe、(D)Asp-(L)Val、(D)Asp-(L)Ile、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheから選ばれるジペプチドが好ましく、(D)Asp-(D)Leu、(D)Asp-(L)Leuが更に好ましい。
ここで、(D)という表記は、アミノ酸がD体であることを意味する。(L)という表記は、アミノ酸がL体であることを意味する。
また、上記(D)体又は(L)体ジペプチドのα体及びβ体のうち、β体がより好ましい。
The dipeptides which are the active ingredients of the anti-inflammatory agent of the present invention include (D)Ile-(D)Pro, (D)Leu-(D)Pro, (D)Pro-(D)Ile, (D)Pro-(D)Leu, (D)Val-(D)-Pro, (D)Pro-(D)Val, (D)Leu-(D)Hyp, (D)Ile-(D)Hyp, (D)Val-(D)Hyp, ( D) Asp-(D)Ile, (D)Asp-(D)Val, (D)Asp-(D)Leu, (D)Asp-(D)Phe, (D)Ile-(L)Pro, (D)Leu- (L)Pro, (D)Pro-(L)Ile, (D)Pro-(L)Leu, (D)Val-(L)-Pro, (D)Pro-(L)Val, (D)Leu-(L)Hy (D)Ile-(L)Hyp, (D)Val-(L)Hyp, (D)Asp-(L)Ile, (D)Asp-(L)Val, (D)Asp-(L)Leu, and (D)Asp-(L)Phe. Among these, (D)Asp-(D)Val is preferred in terms of blood transferability, duration of action, and anti-inflammatory effect upon oral administration. Dipeptides selected from (D)Asp-(D)Ile, (D)Asp-(D)Leu, (D)Asp-(D)Phe, (D)Asp-(L)Val, (D)Asp-(L)Ile, (D)Asp-(L)Leu, and (D)Asp-(L)Phe are preferred, with (D)Asp-(D)Leu and (D)Asp-(L)Leu being more preferred.
Here, the notation (D) means that the amino acid is in the D configuration, and the notation (L) means that the amino acid is in the L configuration.
Of the α- and β-forms of the (D)- or (L)-dipeptides, the β-form is more preferred.
前記のジペプチドは、(D)アミノ酸を原料として用いて、通常の液相ペプチド合成法又は固相ペプチド合成法により製造することができる。例えばα-アミノ基以外の官能基を保護したアミノ酸と、カルボキシ基以外の官能基を保護したアミノ酸又はカルボキシ基を活性化し、カルボキシ基以外の官能基を保護したアミノ酸とを縮合させた後、保護基を脱離させることにより製造できる。
ここで、アミノ酸のアミノ基の保護基としては、ベンジルオキシカルボニル基、tert-ブトキシカルボニル基、フルオレニルメトキシカルボニル基等が挙げられる。カルボキシ基の保護基としては、tert-ブチル基、ベンジル基等が挙げられる。縮合反応は、N,N’-ジシクロヘキシルカルボジイミド、ジシクロヘキシル尿素その他の縮合剤を用いる方法、ニトロフェノール、N-ヒドロキシスクシンイミド等の活性エステル法、混合酸無水物法等を用いることができる。
縮合反応終了後、保護基は除去されるが、固相法の場合は更にペプチドのC末端と樹脂との結合を切断する。更に、前記ペプチドは通常の方法に従い精製される。
The dipeptide can be produced by a conventional liquid-phase peptide synthesis method or solid-phase peptide synthesis method using (D) an amino acid as a starting material. For example, it can be produced by condensing an amino acid in which functional groups other than the α-amino group are protected with an amino acid in which functional groups other than the carboxy group are protected or an amino acid in which the carboxy group has been activated and functional groups other than the carboxy group are protected, followed by elimination of the protecting groups.
Here, examples of the protecting group for the amino group of the amino acid include a benzyloxycarbonyl group, a tert-butoxycarbonyl group, and a fluorenylmethoxycarbonyl group. Examples of the protecting group for the carboxy group include a tert-butyl group and a benzyl group. The condensation reaction can be carried out using a condensing agent such as N,N'-dicyclohexylcarbodiimide or dicyclohexylurea, an active ester method using nitrophenol, N-hydroxysuccinimide, or the like, a mixed acid anhydride method, or the like.
After the condensation reaction is complete, the protecting group is removed, and in the case of the solid phase method, the bond between the C-terminus of the peptide and the resin is further cleaved.The peptide is then purified according to a conventional method.
前記ジペプチドは、酸付加塩又は塩基塩であることができる。酸付加塩としては、塩酸、硫酸、硝酸、リン酸、臭化水素酸、過塩素酸などの無機酸塩、クエン酸、コハク酸、マレイン酸、フマル酸、リンゴ酸、酒石酸、p-トルエンスルホン酸、ベンゼンスルホン酸、メタンスルホン酸、トリフルオロ酢酸などの有機酸の塩が挙げられる。塩基塩としては、ナトリウム、カリウム、リチウムなどのアルカリ金属塩、カルシウム、マグネシウムなどのアルカリ土類金属塩などが挙げられる。 The dipeptide can be an acid addition salt or a base salt. Acid addition salts include inorganic acid salts such as hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, hydrobromic acid, and perchloric acid, and salts of organic acids such as citric acid, succinic acid, maleic acid, fumaric acid, malic acid, tartaric acid, p-toluenesulfonic acid, benzenesulfonic acid, methanesulfonic acid, and trifluoroacetic acid. Base salts include alkali metal salts such as sodium, potassium, and lithium, and alkaline earth metal salts such as calcium and magnesium.
前記ペプチドは、溶媒和物であることができる。溶媒和物としては、水(水和物の場合)、メタノール、エタノール、イソプロパノールなどの溶媒和物が挙げられる。 The peptide may be a solvate. Examples of solvates include water (in the case of a hydrate), methanol, ethanol, isopropanol, etc.
前記ジペプチドは、難消化性であり、経口投与後の血中移行性が高く、持続性にも優れており、炎症性サイトカインの一種であるIL-1β及びIL-6の産生を強く抑制する作用及びIL-1β及びIL-6のmRNA発現を抑制する作用を有する。従って、前記ジペプチドは、IL-1及びIL-6に代表される炎症性サイトカインの産生を抑制し、炎症性サイトカインが関与する炎症性疾患の治療薬及び炎症改善用飲食品組成物として有用である。ここで、IL-1、IL-6等の炎症性サイトカインが関与する疾患としては、関節リウマチ、変形性関節症、炎症性腸疾患、敗血症、急性及び慢性骨髄性白血病、骨粗鬆症、生活習慣病等が挙げられる。The dipeptide is indigestible, has high blood translocation after oral administration, and exhibits excellent sustained activity. It has the effect of strongly suppressing the production of IL-1β and IL-6, which are inflammatory cytokines, and of suppressing the mRNA expression of IL-1β and IL-6. Therefore, the dipeptide suppresses the production of inflammatory cytokines such as IL-1 and IL-6, and is useful as a therapeutic agent for inflammatory diseases involving inflammatory cytokines, and as a food and beverage composition for alleviating inflammation. Examples of diseases involving inflammatory cytokines such as IL-1 and IL-6 include rheumatoid arthritis, osteoarthritis, inflammatory bowel disease, sepsis, acute and chronic myeloid leukemia, osteoporosis, and lifestyle-related diseases.
本発明の医薬組成物は、経口投与、経皮投与、経腸投与、経静脈投与等によって投与できるが、経口投与がより好ましい。経口投与用の製剤としては、液剤、錠剤、散剤、細粒剤、顆粒剤、カプセル剤等が挙げられるが、液剤、錠剤が好ましく、液剤がより好ましい。The pharmaceutical composition of the present invention can be administered orally, transdermally, enterally, intravenously, etc., with oral administration being more preferred. Formulations for oral administration include liquids, tablets, powders, fine granules, granules, capsules, etc., with liquids and tablets being preferred, and liquids being more preferred.
これらの経口投与製剤とするには、乳糖、マンニトール、トウモロコシデンプン、結晶セルロースなどの賦形剤、セルロース誘導体、アラビアゴム、ゼラチンなどの結合剤、カルボキシメチルセルロースカルシウム等の崩壊剤、タルク、ステアリン酸マグネシウムなどの滑沢剤、非イオン界面活性剤等の溶解補助剤、矯味剤、甘味剤、安定化剤、pH調整剤、水、エタノール、プロピレングリコール、グリセリン等を使用することができる。また、ヒドロキシメチルセルロースフタレート、ヒドロキシプロピルメチルセルロースアセテートサクシネート、セルロースアセテートフタレート、メタクリレートコポリマーなどの被覆剤を用いてもよい。 To prepare these oral formulations, excipients such as lactose, mannitol, corn starch, and crystalline cellulose, binders such as cellulose derivatives, gum arabic, and gelatin, disintegrants such as calcium carboxymethylcellulose, lubricants such as talc and magnesium stearate, solubilizers such as nonionic surfactants, flavoring agents, sweeteners, stabilizers, pH adjusters, water, ethanol, propylene glycol, and glycerin may be used. Coating agents such as hydroxymethylcellulose phthalate, hydroxypropylmethylcellulose acetate succinate, cellulose acetate phthalate, and methacrylate copolymers may also be used.
また、本発明の医薬組成物には、他の有効成分を配合することもできる。他の有効成分としては、ビタミンB1類; チアミン、硝酸チアミン、塩酸チアミン、フルスルチアミン、ビスベンチアミン、ベンホチアミン、チアミンジスルフィド、ジセチアミン、チアミンプロピルジスルフィド及びこれらの誘導体、ビタミンB2類; リボフラビン及び誘導体並びにそれらの塩、ビタミンB3類; ナイアシン、ニコチン酸、ニコチン酸アミド及び誘導体並びにそれらの塩、ビタミンB5類; パンテノール、パントテン酸及び誘導体並びにそれらの塩、ビタミンB6類; ピリドキシン及び誘導体並びにそれらの塩、ビタミンB12類; シアノコバラミン及び誘導体並びにそれらの塩、その他のビタミン類;ビタミンA、ビタミンC、ビタミンE、ビタミンK、ビタミンP、ジクロロ酢酸ジイソプロピルアミン、タウリン、コンドロイチン硫酸、ローヤルゼリー、カフェイン、ウコン、マリアアザミ、タンポポ、西洋タンポポ、ゴボウ、ニンニク、キク、西洋ノコギリソウ、クチナシ、ゴマ、田七ニンジン、アスパラガス、タマネギ、チコリ、薬用サルビア、朝鮮アザミ(アーティチョーク)、クコ、マメ科・アヤメ科の植物、ミヤマウズラ、エルバ・デ・パサリーニョ、セテサングリア、アガメガシワ、紅茶、レスベラトロール、カテキン類、ベルベリン、ローズマリー、豆エキス、メトホルミン等が挙げられる。 The pharmaceutical composition of the present invention may also contain other active ingredients, such as vitamin B1 , thiamine, thiamine nitrate, thiamine hydrochloride, fursultiamine, bisbentiamine, benfotiamine, thiamine disulfide, dicethiamine, thiamine propyl disulfide, and derivatives thereof, vitamin B2 , riboflavin, derivatives, and salts thereof, vitamin B3 , niacin, nicotinic acid, nicotinamide, derivatives, and salts thereof, vitamin B5 , panthenol, pantothenic acid, derivatives, and salts thereof, vitamin B6 , pyridoxine, derivatives, and salts thereof, vitamin B12 , Examples of effective anti-inflammatory agents include cyanocobalamin and derivatives and their salts, other vitamins; vitamin A, vitamin C, vitamin E, vitamin K, vitamin P, diisopropylamine dichloroacetate, taurine, chondroitin sulfate, royal jelly, caffeine, turmeric, milk thistle, dandelion, burdock, garlic, chrysanthemum, yarrow, gardenia, sesame, Panax notoginseng, asparagus, onion, chicory, medicinal salvia, artichoke, wolfberry, plants of the Fabaceae and Iridaceae families, mountain quail, erba de passariño, sete sangria, Agametula japonicus, black tea, resveratrol, catechins, berberine, rosemary, bean extract, and metformin.
また、本発明の組成物は、医薬品の外、医薬部外品、特定保健用食品、スポーツ飲料、リハビリ用飲料、ペットフード等の機能性食品としても使用可能である。 In addition to being used as pharmaceuticals, the compositions of the present invention can also be used as functional foods such as quasi-drugs, foods for specified health uses, sports drinks, rehabilitation drinks, and pet food.
本発明の医薬組成物又は食品組成物における前記ジペプチドの含有量は、投与形態によっても異なるが、通常、0.001~10質量%が好ましく、0.001~5質量%がより好ましい。また、本発明の医薬組成物又は食品組成物における前記ジペプチドの1日投与量は、10mg~1000mgが好ましく、20mg~800mgがより好ましく、50mg~800mgが更に好ましい。The content of the dipeptide in the pharmaceutical composition or food composition of the present invention varies depending on the dosage form, but is generally preferably 0.001 to 10% by mass, and more preferably 0.001 to 5% by mass. Furthermore, the daily dose of the dipeptide in the pharmaceutical composition or food composition of the present invention is preferably 10 mg to 1000 mg, more preferably 20 mg to 800 mg, and even more preferably 50 mg to 800 mg.
次に実施例を挙げて本発明を詳細に説明するが、本発明は何らこれに限定されるものではない。 The present invention will now be described in detail using examples, but the present invention is not limited to these examples in any way.
実施例1(肝臓水解物の分画)
(1)ペプチドとピログルタミルペプチドの分画
強カチオン交換樹脂(AG50)をEcono Column(2.5×20cm)に充填し、樹脂を10mM HClで平衡化した。1gの肝臓水解物(Sample A)を20mLの10mM HClに溶解した。この溶液を樹脂上に添加し、素通り画分を20mL回収した(素通り画分1)。続いて、20mLの10mM HClを樹脂上に添加し、素通り画分20mLを回収する。この操作を19回繰り返した(素通り画分2~20)。素通り画分1~20の吸光度(230nm)を測定し、ペプチドの溶出を確認した。
続いて、20mLの50%アンモニア溶液を樹脂上に添加し、吸着画分20mLを回収した。この操作を20回繰り返した(吸着画分1~20)。吸着画分1~20の吸光度(230nm)を測定し、ペプチドの溶出を確認した。
素通り画分(ピログルタミルペプチド画分)および吸着画分(ペプチド画分)をエバポレーターで減圧濃縮した。
Example 1 (Fractionation of Liver Hydrolysate)
(1) Fractionation of Peptides and Pyroglutamyl Peptides A strong cation exchange resin (AG50) was packed into an Econo Column (2.5 x 20 cm) and equilibrated with 10 mM HCl. 1 g of liver hydrolysate (Sample A) was dissolved in 20 mL of 10 mM HCl. This solution was added to the resin, and 20 mL of the flow-through fraction was collected (flow-through fraction 1). Subsequently, 20 mL of 10 mM HCl was added to the resin, and 20 mL of the flow-through fraction was collected. This procedure was repeated 19 times (flow-through fractions 2 to 20). The absorbance (230 nm) of flow-through fractions 1 to 20 was measured to confirm the elution of the peptides.
Subsequently, 20 mL of 50% ammonia solution was added to the resin, and 20 mL of adsorbed fractions were collected. This procedure was repeated 20 times (adsorbed fractions 1 to 20). The absorbance (230 nm) of adsorbed fractions 1 to 20 was measured to confirm the elution of the peptide.
The flow-through fraction (pyroglutamyl peptide fraction) and the adsorbed fraction (peptide fraction) were concentrated under reduced pressure using an evaporator.
(2)親水性と疎水性の分画
固相抽出カラム(Sep-Pak)を10mM HClで平衡化した。ピログルタミルペプチド画分をカラムにパスさせ、素通り画分を溶出・回収した(親水性ピログルタミルペプチド画分)。続いて、10mM HClを含む60%アセトニトリル溶液をカラムにパスさせて、吸着画分を溶出・回収した(疎水性ピログルタミルペプチド画分)。
ペプチド画分についてもこれらの操作を行った。
得られた4画分を凍結乾燥した。
(2) Hydrophilic and Hydrophobic Fractionation A solid-phase extraction column (Sep-Pak) was equilibrated with 10 mM HCl. The pyroglutamyl peptide fraction was passed through the column, and the flow-through fraction was eluted and collected (hydrophilic pyroglutamyl peptide fraction). Subsequently, a 60% acetonitrile solution containing 10 mM HCl was passed through the column, and the adsorbed fraction was eluted and collected (hydrophobic pyroglutamyl peptide fraction).
The peptide fraction was also subjected to these procedures.
The four fractions obtained were freeze-dried.
実施例2
(1)肝臓水解物中の難消化性ペプチドの定量実験
1)2.5mgの肝臓水解物を1mLの50mM Tris-HClに溶解した。
2)1)にパンクレアチン(0.1mg)、ロイシンアミノペプチダーゼ(2.45unit)、カルボキシペプチダーゼ(7.7unit)を添加し、酵素反応させた(37℃、24h)。
3)限外ろ過(10K)により酵素を除した。
4)3)をスピンカラムに充填した強カチオン交換樹脂(AG50)にパスさせ、素通り画分を回収した(ピログルタミルペプチド画分)。
5)200μLの3)(ペプチド画分)および4)(ピログルタミルペプチド画分)をサイズ排除HPLCで分画・分取した(SEC Fr.35-44)。
6)ペプチド画分については、SEC Fr.35-44を乾固してAccQ化した。ピログルタミルペプチド画分については、SEC Fr.35-44をそのまま用いた。
7)LC-MS/MS分析により、難消化性ペプチドの構造を決定した。
カラム:Inertsil ODS-3
溶離液:0.1%ギ酸および0.1%ギ酸を含む80%アセトニトリル
分析方法:ペプチド画分については、AccQのフラグメント(m/z=171.1)を特異的に検出(Precursor ion scan分析)した後、MS/MS分析で構造を推定し、標準を合成してMRM分析で同定・定量を行う。
ピログルタミルペプチド画分については、Total scan ion分析によりピークを検出した後、MS/MS分析で構造を推定し、標準を合成してMRMで同定・定量を行う。
Example 2
(1) Quantitative experiment of indigestible peptides in liver hydrolysate 1) 2.5 mg of liver hydrolysate was dissolved in 1 mL of 50 mM Tris-HCl.
2) To the mixture prepared in 1), pancreatin (0.1 mg), leucine aminopeptidase (2.45 units), and carboxypeptidase (7.7 units) were added, and the mixture was allowed to react at 37°C for 24 hours.
3) The enzyme was removed by ultrafiltration (10K).
4) The product of 3) was passed through a strong cation exchange resin (AG50) packed in a spin column, and the flow-through fraction was collected (pyroglutamyl peptide fraction).
5) 200 μL of 3) (peptide fraction) and 4) (pyroglutamyl peptide fraction) were fractionated and collected by size exclusion HPLC (SEC Fr. 35-44).
6) For the peptide fraction, SEC Fr. 35-44 was evaporated to dryness and converted to AccQ. For the pyroglutamyl peptide fraction, SEC Fr. 35-44 was used as is.
7) The structures of the indigestible peptides were determined by LC-MS/MS analysis.
Column: Inertsil ODS-3
Eluent: 0.1% formic acid and 80% acetonitrile containing 0.1% formic acid. Analytical method: For the peptide fraction, the AccQ fragment (m/z=171.1) was specifically detected (precursor ion scan analysis), and then the structure was estimated by MS/MS analysis. A standard was synthesized and identified and quantified by MRM analysis.
For the pyroglutamyl peptide fraction, peaks are detected by total scan ion analysis, and then the structure is estimated by MS/MS analysis, and a standard is synthesized and identified and quantified by MRM.
(2)肝臓水解物をラットに投与した時のペプチドの血中移行の実験
1)Wister rat(6週齢、雄)に肝臓水解物水溶液を単回投与した(10g/60kg)。
2)投与30分および60分後、イソフルラン麻酔下で腹部大静脈より採血し、血漿を得た。更に、消化管(十二指腸~回腸)を摘出し、生理食塩水10mLで管腔内容物を溶出する。血漿および消化管内容物に3倍量のエタノールを加えた(分析まで-20℃で保存)。
3)血漿および消化管内容物のエタノール上を乾固し、AccQ化を行った。
4)MRM分析により、(1)で同定された難消化性ペプチドの同定・定量を行った。
血中のジペプチド濃度を表1に示す。
(2) Experiment on transfer of peptides into blood when liver hydrolysate was administered to rats 1) A single dose of an aqueous solution of liver hydrolysate was administered to Wistar rats (6-week-old, male) (10 g/60 kg).
2) Thirty and 60 minutes after administration, blood samples were collected from the abdominal vena cava under isoflurane anesthesia to obtain plasma. The digestive tract (duodenum to ileum) was then removed, and the luminal contents were eluted with 10 mL of saline. Three volumes of ethanol were added to the plasma and digestive tract contents (stored at -20°C until analysis).
3) Plasma and digestive tract contents were evaporated to dryness over ethanol and subjected to AccQ conversion.
4) The indigestible peptides identified in (1) were identified and quantified by MRM analysis.
The dipeptide concentrations in the blood are shown in Table 1.
その結果、(D)Asp-(D)Val、(D)Asp-(D)Phe、(D)Asp-(D)Ile、(D)Asp-(D)Leu、(D)Asp-(L)Val、(D)Asp-(L)Ile、(D)Asp-(L)Leu、及び(D)Asp-(L)Pheは、経口投与による血中移行性が良好で、血中で長時間持続することが判明した。 As a result, it was found that (D)Asp-(D)Val, (D)Asp-(D)Phe, (D)Asp-(D)Ile, (D)Asp-(D)Leu, (D)Asp-(L)Val, (D)Asp-(L)Ile, (D)Asp-(L)Leu, and (D)Asp-(L)Phe have good blood transfer properties when administered orally and persist in the blood for a long period of time.
実施例3(ジペプチドの合成)
1)以下の順でナス型フラスコに試薬を加え、撹拌しながら反応させる(4℃,over night)。
(i)H-Leu-OtBu・HCl
(ii)DMF
(iii)TEA
(iv)Boc-Asp(OtBu)-OH(Lα体)
(v)HOBt
(vi)EDL・HCl
その他の異性体の場合には、次の保護アミノ酸を使用する。
Boc-D-Asp(OtBu)-OH(Dα体)
Boc-Asp-OtBu(Lβ体)
Boc-D-Asp-OtBu(Dβ体)
2)エバポレーターでDMFを除去する。
3)酢酸エチルに溶解し、分液漏斗に移す。
4)5%炭酸水素ナトリウムを加えて撹拌し、水層を除く。(×2)
5)10%クエン酸を加えて撹拌し、水層を除く。(×2)
6)飽和食塩水を加えて撹拌し、水層を除く。
7)酢酸エチル層を回収し、硫酸水素ナトリウムを加えて脱水する。
8)酢酸エチル層をろ過回収し、エバポレーターで濃縮する。
9)石油エーテルを加え、生じた沈殿を乾燥させる。(生じない場合は10)に進む)
10)乾燥物に4M HCl/dioxaneを加え、撹拌しながら反応させる。(4℃,24~48h)
11)エバポレーターで4M HCl/dioxaneを除く。
12)ジエチルエーテルを加え、得られた沈殿を超音波で破砕・洗浄し、エーテル上清をデカンで除く。(×3)
13)ジエチルエーテルを加えて放置(4℃,over night)。
14)ジエチルエーテルを加え、得られた沈殿を超音波で破砕・洗浄し、エーテル上清をデカンで除く。(×3)
15)沈殿物を乾燥する。
Example 3 (Synthesis of dipeptide)
1) Add the following reagents to a recovery flask in the following order and allow to react while stirring (4°C overnight):
(i) H-Leu-OtBu・HCl
(ii) DMF
(iii) TEA
(iv) Boc-Asp(OtBu)-OH (Lα body)
(v) HOBt
(vi) EDL·HCl
For other isomers, the following protected amino acids are used:
Boc-D-Asp(OtBu)-OH (Dα body)
Boc-Asp-OtBu (Lβ body)
Boc-D-Asp-OtBu (Dβ body)
2) Remove the DMF using an evaporator.
3) Dissolve in ethyl acetate and transfer to a separatory funnel.
4) Add 5% sodium bicarbonate and stir, then remove the aqueous layer (x2).
5) Add 10% citric acid and stir, then remove the aqueous layer (x2).
6) Add saturated saline and stir, then remove the aqueous layer.
7) The ethyl acetate layer is collected and dehydrated by adding sodium hydrogen sulfate.
8) The ethyl acetate layer is collected by filtration and concentrated using an evaporator.
9) Add petroleum ether and dry the resulting precipitate. (If no precipitate forms, proceed to 10))
10) Add 4M HCl/dioxane to the dried material and react with stirring (4°C, 24-48 hours).
11) Remove the 4M HCl/dioxane using an evaporator.
12) Diethyl ether is added, the resulting precipitate is ultrasonically crushed and washed, and the ethereal supernatant is removed with decane (x3).
13) Add diethyl ether and leave to stand (4°C, overnight).
14) Diethyl ether is added, the resulting precipitate is ultrasonically crushed and washed, and the ethereal supernatant is removed with decane (x3).
15) Dry the precipitate.
実施例4
RAW264.7細胞の細胞数を1.5×106cells/dishに調整して播種し一晩培養した。分画前サンプル又は濾液分画を共にEMEM培地で20倍希釈した(終濃度約0.6mg/mL)。コントロールにはサンプルの代わりにPBSをEMEM培地で20倍希釈した。培地で希釈した上記の各サンプル(コントロール・分画前・濾液分画)を各dish群に添加した。24時間培養後、リポポリサッカライド(LPS)が終濃度1.0μg/mLとなるように添加した。3時間静置し、RNAを回収し、逆転写反応によるcDNA合成を行った。次いで、RT-RCRによるEEF1A1、IL-6の測定を行った。
Example 4
RAW264.7 cells were seeded at 1.5 x 10 cells/dish and cultured overnight. Both the pre-fractionation sample and the filtrate fraction were diluted 20-fold with EMEM medium (final concentration: approximately 0.6 mg/mL). For the control, PBS was diluted 20-fold with EMEM medium instead of the sample. Each of the above samples (control, pre-fractionation, and filtrate fractions) diluted with medium was added to each dish group. After 24 hours of culture, lipopolysaccharide (LPS) was added to a final concentration of 1.0 μg/mL. After 3 hours of incubation, RNA was collected and cDNA synthesis was performed by reverse transcription. EEF1A1 and IL-6 were then measured by RT-PCR.
その結果を図1~図4に示す。
LPS刺激したRAW細胞において、ジペプチド群とジペプチドのかわりにPBSを添加したCont群間で炎症関連遺伝子のmRNA発現量を比較したところ、IL-6は疎水性ペプチド分画、疎水性ピログルタミルペプチド画分において有意に低下し、ジペプチドの炎症抑制効果が示唆された。
The results are shown in Figures 1 to 4.
In LPS-stimulated RAW cells, the mRNA expression levels of inflammation-related genes were compared between the dipeptide group and the control group in which PBS was added instead of the dipeptide. IL-6 was significantly reduced in the hydrophobic peptide fraction and the hydrophobic pyroglutamyl peptide fraction, suggesting the anti-inflammatory effect of the dipeptide.
実施例5
RAW264.7細胞の細胞数を1.5×106cells/dishに調整して播種し一晩培養した。分画前サンプル又は濾液分画を共にEMEM培地で20倍希釈した(終濃度約0.6mg/mL)。コントロールにはサンプルの代わりにPBSをEMEM培地で20倍希釈した。培地で希釈した上記の各サンプル(コントロール・分画前・濾液分画)を各dish群に添加した。24時間培養後、リポポリサッカライド(LPS)が終濃度1.0μg/mLとなるように添加した。3時間静置し、RNAを回収し、逆転写反応によるcDNA合成を行った。次いで、RT-RCRによるEEF1A1、IL-1βの測定を行った。
Example 5
RAW264.7 cells were seeded at 1.5 x 10 cells/dish and cultured overnight. Both the pre-fractionation sample and the filtrate fraction were diluted 20-fold with EMEM medium (final concentration: approximately 0.6 mg/mL). For the control, PBS was diluted 20-fold with EMEM medium instead of the sample. Each of the above samples (control, pre-fractionation, and filtrate fractions) diluted with medium was added to each dish group. After 24 hours of culture, lipopolysaccharide (LPS) was added to a final concentration of 1.0 μg/mL. After 3 hours of incubation, RNA was collected and cDNA synthesis was performed by reverse transcription. EEF1A1 and IL-1β were then measured by RT-PCR.
その結果を図5~図6に示す。
LPS刺激したRAW細胞において、ジペプチド群とジペプチドのかわりにPBSを添加したCont群間で炎症関連遺伝子のmRNA発現量を比較したところ、IL-1βは疎水性ペプチド分画において有意に低下し、ジペプチドの炎症抑制効果が示唆された。
The results are shown in FIGS.
In LPS-stimulated RAW cells, the mRNA expression levels of inflammation-related genes were compared between the dipeptide group and the control group in which PBS was added instead of the dipeptide. IL-1β was significantly reduced in the hydrophobic peptide fraction, suggesting the anti-inflammatory effect of the dipeptide.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2023193372A JP2024003144A (en) | 2018-04-26 | 2023-11-14 | Pharmaceutical composition containing dipeptide |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018084926 | 2018-04-26 | ||
| JP2018084926 | 2018-04-26 | ||
| PCT/JP2019/017657 WO2019208701A1 (en) | 2018-04-26 | 2019-04-25 | Pharmaceutical composition containing dipeptide |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023193372A Division JP2024003144A (en) | 2018-04-26 | 2023-11-14 | Pharmaceutical composition containing dipeptide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPWO2019208701A1 JPWO2019208701A1 (en) | 2021-05-13 |
| JP7795731B2 true JP7795731B2 (en) | 2026-01-08 |
Family
ID=68295494
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2020515566A Active JP7795731B2 (en) | 2018-04-26 | 2019-04-25 | Pharmaceutical compositions containing dipeptides |
| JP2023193372A Pending JP2024003144A (en) | 2018-04-26 | 2023-11-14 | Pharmaceutical composition containing dipeptide |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023193372A Pending JP2024003144A (en) | 2018-04-26 | 2023-11-14 | Pharmaceutical composition containing dipeptide |
Country Status (6)
| Country | Link |
|---|---|
| JP (2) | JP7795731B2 (en) |
| KR (1) | KR20210003753A (en) |
| CN (1) | CN112020366A (en) |
| SG (1) | SG11202010046WA (en) |
| TW (1) | TWI822770B (en) |
| WO (1) | WO2019208701A1 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016190395A1 (en) | 2015-05-27 | 2016-12-01 | キリン株式会社 | Inflammation-suppressing composition including peptide |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6126939A (en) * | 1996-09-03 | 2000-10-03 | Yeda Research And Development Co. Ltd. | Anti-inflammatory dipeptide and pharmaceutical composition thereof |
| US20110183925A1 (en) * | 2008-09-22 | 2011-07-28 | Nisshin Pharma Inc. | Anti-inflammatory peptide |
| SG11201907124YA (en) * | 2017-02-23 | 2019-09-27 | Zeria Pharmaceutical Co Ltd | Anti-inflammatory agent |
-
2019
- 2019-04-25 JP JP2020515566A patent/JP7795731B2/en active Active
- 2019-04-25 KR KR1020207030149A patent/KR20210003753A/en not_active Ceased
- 2019-04-25 SG SG11202010046WA patent/SG11202010046WA/en unknown
- 2019-04-25 CN CN201980028106.3A patent/CN112020366A/en active Pending
- 2019-04-25 WO PCT/JP2019/017657 patent/WO2019208701A1/en not_active Ceased
- 2019-04-26 TW TW108114725A patent/TWI822770B/en active
-
2023
- 2023-11-14 JP JP2023193372A patent/JP2024003144A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016190395A1 (en) | 2015-05-27 | 2016-12-01 | キリン株式会社 | Inflammation-suppressing composition including peptide |
Non-Patent Citations (1)
| Title |
|---|
| J. Immunology, 2000, Vol. 165, pp. 1004-1012 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202014197A (en) | 2020-04-16 |
| KR20210003753A (en) | 2021-01-12 |
| SG11202010046WA (en) | 2020-11-27 |
| JP2024003144A (en) | 2024-01-11 |
| WO2019208701A1 (en) | 2019-10-31 |
| TWI822770B (en) | 2023-11-21 |
| CN112020366A (en) | 2020-12-01 |
| JPWO2019208701A1 (en) | 2021-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5622593B2 (en) | Pharmaceutical or food containing peptide | |
| JP7584109B2 (en) | Dipeptide and pharmaceutical composition containing same | |
| JP7795731B2 (en) | Pharmaceutical compositions containing dipeptides | |
| US11717502B2 (en) | Blood flow improver | |
| KR102608239B1 (en) | anti-inflammatory | |
| JP7726067B2 (en) | Peptides and their uses | |
| WO1997049724A1 (en) | Cyclic depsipeptides and drugs containing the same as the active ingredient | |
| WO2012070554A1 (en) | Peptide | |
| JP7315161B2 (en) | peptide | |
| KR100751051B1 (en) | A Pharmaceutical Composition for Treating Arthritis | |
| JP7792583B2 (en) | Aβ production inhibitory peptide and pharmaceutical composition, food and drink containing the same | |
| JP5175196B2 (en) | Thio-containing inhibitors of aminopeptidase P, compositions thereof and methods of use | |
| CN108273038A (en) | Prevent the pharmaceutical composition of visible peristalsis visible intestinal peristalsis radiation sickness | |
| JPH03284694A (en) | New tripeptide and hypotensor | |
| WO2024234320A1 (en) | Long-acting glucagon-like peptide-1 derivative, and preparation method therefor and use thereof | |
| JP2022177648A (en) | Hypoglycemic composition, and hypoglycemic agent containing the same | |
| JP2021017421A (en) | peptide | |
| JPH0236195A (en) | Novel peptide and angiotensin converting enzyme inhibitor | |
| JPWO2005092363A1 (en) | Preventive and therapeutic agents for diabetic complications using oligopeptides | |
| JP2018184367A (en) | peptide | |
| JPH0548238B2 (en) | ||
| JP2004043401A (en) | Multidrug resistance inhibitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20201027 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20220314 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220315 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230322 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230517 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20230815 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20231114 |
|
| A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20231122 |
|
| A912 | Re-examination (zenchi) completed and case transferred to appeal board |
Free format text: JAPANESE INTERMEDIATE CODE: A912 Effective date: 20231215 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20251015 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20251212 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 7795731 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |