WO2019107530A1 - 炎症性腸疾患の治療薬 - Google Patents
炎症性腸疾患の治療薬 Download PDFInfo
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- WO2019107530A1 WO2019107530A1 PCT/JP2018/044122 JP2018044122W WO2019107530A1 WO 2019107530 A1 WO2019107530 A1 WO 2019107530A1 JP 2018044122 W JP2018044122 W JP 2018044122W WO 2019107530 A1 WO2019107530 A1 WO 2019107530A1
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- inflammatory bowel
- bowel disease
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/1703—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
- A61K38/1709—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/04—Drugs for disorders of the alimentary tract or the digestive system for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/46—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
- C07K14/47—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals
- C07K14/4701—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals not used
- C07K14/4702—Regulators; Modulating activity
Definitions
- the present application relates to a pharmaceutical composition for the prevention and / or treatment of inflammatory bowel disease, which comprises a fragment peptide of High mobility group box 1 (HMGB1) protein.
- HMGB1 High mobility group box 1
- IBD Inflammatory bowel disease
- IBD ulcerative colitis and Crohn's disease.
- inflammatory bowel disease does not currently have a curative therapy, and remission and relapse are often repeated, requiring long-term medical management.
- 5-aminosalicylic acid preparations As therapeutic agents for inflammatory bowel disease, 5-aminosalicylic acid preparations, corticosteroid preparations, immunosuppressants, biological preparations (for example, anti-TNF- ⁇ antibody and anti- ⁇ 4 ⁇ 7 integrin antibody) are used. There are cases where sufficient effects can not be obtained. Furthermore, also in terms of side effects, nausea, fever, abdominal pain, anemia, interstitial nephritis and liver dysfunction due to 5-aminosalicylic acid preparations; insomnia due to corticosteroids, osteoporosis, adrenal cortex dysfunction, glucose intolerance and blood pressure elevation And there are problems such as renal dysfunction due to immunosuppressants, liver dysfunction, leukocytopenia and elevated blood pressure, and there is room for improvement. Therefore, development of a more effective and safer therapeutic agent for inflammatory bowel disease, which is a different type from existing therapeutic agents, is desired.
- the present application aims to provide a novel medicine effective for the treatment of inflammatory bowel disease.
- HMGB1 fragment peptides having a specific amino acid sequence have an effect of suppressing weight loss in animal models of inflammatory bowel disease and shortening of the large intestine. And it was found to exhibit the effect of suppressing mucosal damage. Accordingly, the present application provides a pharmaceutical composition for the prevention and / or treatment of inflammatory bowel disease, which comprises the specific HMGB1 fragment peptide.
- compositions for the prevention and / or treatment of inflammatory bowel disease comprising the substance according to any of the following (a) to (c) (hereinafter referred to as substance A): (A) an HMGB1 fragment peptide comprising the amino acid sequence set forth in SEQ ID NO: 1; (B) a peptide comprising an amino acid sequence in which one or more amino acids are substituted, deleted, inserted or added in the amino acid sequence set forth in SEQ ID NO: 1; and (c) the amino acid sequence set forth in SEQ ID NO: 1 A peptide comprising an amino acid sequence having about 80% or more sequence identity.
- the pharmaceutical composition according to [1], wherein the inflammatory bowel disease is a nonspecific inflammatory bowel disease.
- the pharmaceutical composition according to [2], wherein the nonspecific inflammatory bowel disease is ulcerative colitis.
- the pharmaceutical composition according to [2], wherein the nonspecific inflammatory bowel disease is Crohn's disease.
- the pharmaceutical composition according to [5], wherein the inflammatory bowel disease is a nonspecific inflammatory bowel disease.
- a method of preventing and / or treating inflammatory bowel disease comprising the step of administering an effective amount of substance A to a subject.
- [A2] The method according to [A1], wherein the inflammatory bowel disease is a nonspecific inflammatory bowel disease.
- [A3] The method according to [A2], wherein the nonspecific inflammatory bowel disease is ulcerative colitis.
- [A4] The method according to [A2], wherein the nonspecific inflammatory bowel disease is Crohn's disease.
- [A5] A method of inhibiting weight loss or damage to the intestinal mucosa in a patient, comprising administering an effective amount of substance A to a patient with inflammatory bowel disease.
- [A6] The method according to [A5], wherein the inflammatory bowel disease is a nonspecific inflammatory bowel disease.
- Substance A for use in the prevention and / or treatment of inflammatory bowel disease.
- [C2] The use according to [C1], wherein the inflammatory bowel disease is a nonspecific inflammatory bowel disease.
- [C3] The use according to [C2], wherein the nonspecific inflammatory bowel disease is ulcerative colitis.
- [C4] The use according to [C2], wherein the nonspecific inflammatory bowel disease is Crohn's disease.
- [C5] Use of substance A in the manufacture of a medicament for inhibiting weight loss or damage to the intestinal mucosa in patients with inflammatory bowel disease.
- [C6] The use according to [C5], wherein the inflammatory bowel disease is a nonspecific inflammatory bowel disease.
- the present application provides a pharmaceutical composition for the prevention and / or treatment of inflammatory bowel disease, which comprises an HMGB1 fragment peptide comprising the amino acid sequence set forth in SEQ ID NO: 1.
- the inflammatory bowel disease in the present application includes a disease of unknown cause (nonspecific inflammatory bowel disease) and a disease with a clear relationship with the cause (specific inflammatory bowel disease).
- Nonspecific inflammatory bowel diseases include, but are not limited to, ulcerative colitis, Crohn's disease and intestinal Behcet's disease.
- Specific inflammatory bowel diseases include, but are not limited to, infectious enteritis, drug-induced enteritis, ischemic enteritis, intestinal tuberculosis and the like.
- the inflammatory bowel disease of the present application is a nonspecific inflammatory bowel disease.
- the non-specific inflammatory bowel disease of the present application is ulcerative colitis or Crohn's disease. In another embodiment, the non-specific inflammatory bowel disease of the present application is ulcerative colitis. In another further aspect, the non-specific inflammatory bowel disease of the present application is Crohn's disease.
- Ulcerative colitis is an inflammatory disease of unknown cause that causes erosion or ulceration in the mucosa of the large intestine.
- the main symptoms are symptoms such as bloody stool, mucous bloody stool, diarrhea or bloody diarrhea, abdominal pain, often accompanied by fever and weight loss.
- Crohn's disease is a chronic inflammatory disease of unknown cause that causes granulomatous inflammatory lesions accompanied by ulceration and fibrosis in the digestive tract.
- intestinal complications such as fistula, stenosis, and extraintestinal complications such as anemia, arthritis, ulcerados, nodular erythema, anal lesion etc. may occur. is there.
- pharmaceutical composition is used interchangeably with “medicament”, “drug” or “pharmaceutical composition”.
- the present application also provides a pharmaceutical composition for suppressing weight loss or damage to the intestinal mucosa in a patient with inflammatory bowel disease, which comprises an HMGB1 fragment peptide comprising the amino acid sequence set forth in SEQ ID NO: 1.
- the pharmaceutical composition of the present application is for use in suppressing mucosal damage in the large intestine in patients with inflammatory bowel disease.
- an HMGB1 fragment peptide containing the amino acid sequence set forth in SEQ ID NO: 1 means a peptide consisting of a part of HMGB1 protein and containing the amino acid sequence set forth in SEQ ID NO: 1.
- Such peptides can be obtained as recombinants by incorporating the DNA encoding the peptides into an appropriate expression system, or can be artificially synthesized.
- examples of the HMGB1 protein include, but are not limited to, a protein comprising the amino acid sequence set forth in SEQ ID NO: 2 and a protein encoded by a DNA comprising the base sequence set forth in SEQ ID NO: 3 It is not a thing.
- an HMGB1 fragment peptide consisting of the amino acid sequence set forth in SEQ ID NO: 1 can be exemplified, but it is not limited thereto.
- one or more amino acid residues are altered in the amino acid sequence described in SEQ ID NO: 1 instead of or in addition to the HMGB1 fragment peptide containing the amino acid sequence set forth in SEQ ID NO: 1 (
- a peptide functionally equivalent to an HMGB1 fragment peptide comprising the amino acid sequence described in SEQ ID NO: 1, which is a peptide comprising an amino acid sequence substituted, deleted, inserted or added, can also be used.
- Such peptides include, but are not limited to: i) One or more (for example, 1 to 10, 1 to 9, 1 to 8, 1 to 7, 1 to 6, 1) of the amino acid sequence set forth in SEQ ID NO: 1 A peptide comprising an amino acid sequence in which -5, 1-4, 1-3, 1 or 2) amino acids are substituted, deleted, inserted or added; ii) one or more (for example, 1 to 10, 1 to 9, 1 to 8, 1 to 7, 1 to 6, 1) of the amino acid sequence set forth in SEQ ID NO: 1 A peptide consisting of an amino acid sequence in which -5, 1-4, 1-3, 1 or 2 amino acids are substituted, deleted, inserted or added; iii) The amino acid sequence set forth in SEQ ID NO: 1 by about 80% or more, for example about 85% or more, about 90% or more, about 91% or more, about 92% or more, about 93% or more, about 94% or more, about 95% or more A peptide comprising an amino acid sequence having a sequence identity of%
- a peptide or the like An effective amount of the peptide of the present application or a pharmaceutical composition containing the same (hereinafter referred to as a peptide or the like) is administered to a subject for treatment or prevention of the diseases and conditions described herein.
- An effective amount in the present application refers to an amount sufficient for the treatment or prevention of the diseases and symptoms described herein.
- Treatment in the present application includes, but is not limited to, alleviation, delay, arrest, amelioration, remission, cure, complete cure, and the like.
- prevention in the present application includes, but is not limited to, mitigation, delay, arrest and the like.
- the subject in the present application is not particularly limited, and includes mammals, birds, fish and the like. Mammals include human or non-human animals, and examples thereof include, but are not limited to, humans, mice, rats, monkeys, pigs, dogs, rabbits, hamsters, guinea pigs, horses, sheep, whales, etc. is not.
- the term "subject” is used interchangeably with "patient”, “individual” and "animal”.
- the present invention may be administered at any site, such as a site distant from the site of symptoms of inflammatory bowel disease or a site distant from the site of symptoms of inflammatory bowel disease and other sites. And the like can exert their effects.
- the peptides and the like of the present application may be selected from tissues different from tissues in which symptoms of inflammatory bowel disease appear (for example, digestive tract), tissues separated from tissues in which symptoms of inflammatory bowel disease appear, and tissues in which symptoms of inflammatory bowel disease appear The effect can be exerted even if it is administered to any tissue, such as a tissue located distally or a tissue located distal to and off the tissue presenting a symptom of inflammatory bowel disease.
- parenteral administration methods include oral administration and parenteral administration, and parenteral administration methods include intravascular administration (intraarterial administration, intravenous administration, etc.), intramuscular administration, subcutaneous administration, intradermal administration Examples include, but are not limited to, administration, intraperitoneal administration, nasal administration, pulmonary administration, percutaneous administration and the like.
- the peptides and the like of the present invention can be systemically or locally (eg, subcutaneously, intradermal, skin surface, eye or eyelid conjunctiva, nasal cavity) by injection administration, for example, intravenous injection, intramuscular injection, intraperitoneal injection, subcutaneous injection and the like It can be administered to mucous membranes, oral cavity and digestive tract mucous membranes, vaginal / uterine mucous membranes, or injury sites.
- injection administration for example, intravenous injection, intramuscular injection, intraperitoneal injection, subcutaneous injection and the like It can be administered to mucous membranes, oral cavity and digestive tract mucous membranes, vaginal / uterine mucous membranes, or injury sites.
- cells secreting the peptide of the present application cells secreting the peptide of the present application, vector for gene therapy into which DNA encoding the peptide is inserted, and pharmaceutical compositions containing these can be used.
- the administration method can be appropriately selected according to the age and symptoms of the patient.
- the dosage can be selected, for example, in the range of 0.0000001 mg to 1000 mg per kg of body weight per single administration.
- the dose can be selected in the range of 0.00001 to 100,000 mg / body per patient.
- the amount of the peptide can be administered within the above range.
- the pharmaceutical compositions in the present application are not limited to these dosages.
- the pharmaceutical composition of the present application can be formulated according to a conventional method (e.g., Remington's Pharmaceutical Science, latest edition, Mark Publishing Company, Easton, USA), which comprises both a pharmaceutically acceptable carrier and additives. It may be.
- a pharmaceutically acceptable carrier e.g., ethanol, sulfate, sulfate, sulfate, sulfate, sulfate, sulfate, sulfate, sulfate, sulfate, sulfate, sorbito, sorbito, sorbito, sorbito, sorbito, sorbito, sorbito, sorbito, sorbito, sorbito, sorbito, sulfate, sulfate, sulfate, sulfate, sulfate, sulfate, sulfate, sulfate, sulfate, sulfate, sul
- HMGB1 peptide (1-44), and is abbreviated to “1-44” in the drawings corresponding to the examples.
- mice ii) Preparation of an inflammatory bowel disease (IBD) model mouse
- IBD inflammatory bowel disease
- C57BL / 6 mice 8 to 10 weeks old, male, weight about 20 g
- RO water purified water
- Induced colitis drinking of DSS solution continued until removal of the colon.
- RO water purified water
- the test substance was administered at 200 ⁇ L / animal of HMGB1 peptide (1-44) solution adjusted to a concentration of 0.5 mg / mL using saline as a solvent on days 6 and 7 after the start of drinking DSS aqueous solution (The dose of the peptide was 5 mg / kg) by intravenous infusion.
- physiological saline was intravenously infused in an amount of 200 ⁇ L / animal on the 6th and 7th days after initiation of drinking of the DSS aqueous solution.
- “the Xth day after the drinking start of the DSS aqueous solution” is abbreviated and described as "the DSS drinking Xth day”.
- mice The body weight change of the mice during the test period is shown in FIG. 1 (“Water” for normal mice, “DSS + saline” for control group, “DSS for HMGB1 peptide (1-44) administration group) + 1-44).
- the body weight of the control group IBD model mice decreased with the passage of days, and became significantly smaller than that of the normal mice on the 9th day of DSS drinking.
- the HMGB1 peptide (1-44) -administered group the body weight once lost recovered after administration of the peptide, and became significantly larger than that in the control group on the 9th day of DSS drinking.
- the test substance was administered at 200 ⁇ L / animal volume of HMGB1 peptide (1-44) solution adjusted to a concentration of 0.5 mg / mL using saline as a solvent on days 1, 3, 5 and 7 of DSS drinking water As a dose of 5 mg / kg).
- Mucosal tissue HEstaining image of large intestine tissue at day 10 of DSS drinking water is shown in FIG. 6 (“Water” for normal mice, “DSS + saline” for control group, “DSS for HMGB1 peptide (1-44) administration group) + 1-44).
- the mucosal tissue was damaged in the control group of IBD model mice, whereas the mucosal tissue damage was suppressed in the HMGB1 peptide (1-44) administration group.
- the administration of the test substance was carried out by embedding the hydrogel containing HMGB1 peptide (1-44) solution prepared as described above on the back of the mouse one day before the start of drinking of the DSS aqueous solution.
- HMGB1 peptide (1-44) has an effect of mobilizing mesenchymal stem cells in bone marrow to peripheral blood. Therefore, the following experiment was performed in order to compare the effects of administration of mesenchymal stem cells and administration of HMGB1 peptide (1-44).
- mesenchymal stem cells were obtained as adherent colonies.
- MSC mesenchymal stem cell
- C57BL / 6 mice (6-8 weeks old, male) bone marrow was taken from the femoral bone, using the MesenCult as medium (TM) MSC Basal Medium (Mouse) ( STEMCELL Technologies Co., Ltd., including a 10nM Rock inhibitor and MesenPure)
- TM MesenCult as medium
- MSC Basal Medium STEMCELL Technologies Co., Ltd., including a 10nM Rock inhibitor and MesenPure
- HMGB1 peptide (1-44) was used as an inflammatory intestine prepared under the same conditions. It showed an effect of improving symptoms such as weight loss in disease model mice. From this, it is expected that the peptide of the present application is also effective for patients with inflammatory bowel disease in which the administration of mesenchymal stem cells is ineffective.
- compositions containing the peptides of the present application are expected to provide significant benefits to patients with inflammatory bowel disease for which existing therapeutic agents are not effective.
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Abstract
Description
〔1〕
以下の(a)から(c)のいずれかに記載の物質(以下、物質Aと称する)を含有する、炎症性腸疾患の予防および/または治療のための医薬組成物:
(a)配列番号:1に記載のアミノ酸配列を含むHMGB1断片ペプチド;
(b)配列番号:1に記載のアミノ酸配列において1若しくは複数個のアミノ酸が置換、欠失、挿入若しくは付加されたアミノ酸配列を含むペプチド; および
(c)配列番号:1に記載のアミノ酸配列と約80%以上の配列同一性を有するアミノ酸配列を含むペプチド。
〔2〕
炎症性腸疾患が非特異的炎症性腸疾患である、〔1〕に記載の医薬組成物。
〔3〕
非特異的炎症性腸疾患が潰瘍性大腸炎である、〔2〕に記載の医薬組成物。
〔4〕
非特異的炎症性腸疾患がクローン病である、〔2〕に記載の医薬組成物。
〔5〕
物質Aを含有する、炎症性腸疾患の患者において体重減少または腸管粘膜の損傷を抑制するための医薬組成物。
〔6〕
炎症性腸疾患が非特異的炎症性腸疾患である、〔5〕に記載の医薬組成物。
〔A1〕
物質Aの有効量を対象に投与する工程を含む、炎症性腸疾患を予防および/または治療する方法。
〔A2〕
炎症性腸疾患が非特異的炎症性腸疾患である、〔A1〕に記載の方法。
〔A3〕
非特異的炎症性腸疾患が潰瘍性大腸炎である、〔A2〕に記載の方法。
〔A4〕
非特異的炎症性腸疾患がクローン病である、〔A2〕に記載の方法。
〔A5〕
物質Aの有効量を炎症性腸疾患の患者に投与する工程を含む、該患者において体重減少または腸管粘膜の損傷を抑制する方法。
〔A6〕
炎症性腸疾患が非特異的炎症性腸疾患である、〔A5〕に記載の方法。
〔B1〕
炎症性腸疾患の予防および/または治療に用いるための物質A。
〔B2〕
炎症性腸疾患が非特異的炎症性腸疾患である、〔B1〕に記載の物質A。
〔B3〕
非特異的炎症性腸疾患が潰瘍性大腸炎である、〔B2〕に記載の物質A。
〔B4〕
非特異的炎症性腸疾患がクローン病である、〔B2〕に記載の物質A。
〔B5〕
炎症性腸疾患の患者において体重減少または腸管粘膜の損傷の抑制に用いるための物質A。
〔B6〕
炎症性腸疾患が非特異的炎症性腸疾患である、〔B5〕に記載の物質A。
〔C1〕
炎症性腸疾患の予防および/または治療のための医薬の製造における、物質Aの使用。
〔C2〕
炎症性腸疾患が非特異的炎症性腸疾患である、〔C1〕に記載の使用。
〔C3〕
非特異的炎症性腸疾患が潰瘍性大腸炎である、〔C2〕に記載の使用。
〔C4〕
非特異的炎症性腸疾患がクローン病である、〔C2〕に記載の使用。
〔C5〕
炎症性腸疾患の患者において体重減少または腸管粘膜の損傷を抑制するための医薬の製造における、物質Aの使用。
〔C6〕
炎症性腸疾患が非特異的炎症性腸疾患である、〔C5〕に記載の使用。
i) 配列番号:1に記載のアミノ酸配列において1若しくは複数個(例えば1個~10個、1個~9個、1個~8個、1個~7個、1個~6個、1個~5個、1個~4個、1個~3個、または1個若しくは2個)のアミノ酸が置換、欠失、挿入若しくは付加されたアミノ酸配列を含むペプチド;
ii) 配列番号:1に記載のアミノ酸配列において1若しくは複数個(例えば1個~10個、1個~9個、1個~8個、1個~7個、1個~6個、1個~5個、1個~4個、1個~3個、または1個若しくは2個)のアミノ酸が置換、欠失、挿入若しくは付加されたアミノ酸配列からなるペプチド;
iii) 配列番号:1に記載のアミノ酸配列と約80%以上、例えば約85%以上、約90%以上、約91%以上、約92%以上、約93%以上、約94%以上、約95%以上、約96%以上、約97%以上、約98%以上または約99%以上の配列同一性を有するアミノ酸配列を含むペプチド;
iv) 配列番号:1に記載のアミノ酸配列と約80%以上、例えば約85%以上、約90%以上、約91%以上、約92%以上、約93%以上、約94%以上、約95%以上、約96%以上、約97%以上、約98%以上または約99%以上の配列同一性を有するアミノ酸配列からなるペプチド。
炎症性腸疾患に対するHMGB1断片ペプチドの有効性の評価(1)
i)薬剤調製
デキストラン硫酸ナトリウム(DSS)(分子量5,000~6,000、ナカライテスク社製、カタログ番号10930-94)を水に溶解し、3%(w/v)のDSS水溶液を調製した。また、ヒト由来のHMGB1タンパク質のアミノ酸残基1-44(配列番号:1)からなるペプチドを固相法により化学合成した。以下、当該HMGB1断片ペプチドをHMGB1ペプチド(1-44)と称し、実施例に対応する図面においては「1-44」と省略して表記する。
C57BL/6マウス(8~10週齢、オス、体重約20g)に精製水(RO水)に代えて3%DSS水溶液を自由飲水させることにより、大腸炎を誘発した(DSS水溶液の飲水は大腸の摘出時まで継続した)。また、精製水(RO水)を自由飲水させたマウス(以下、「正常マウス」と称する)を比較対象として用いた。
上記の通り作成したIBDモデルマウスをHMGB1ペプチド(1-44)投与群(n=3)および対照群(n=3)に分けた。被験物質の投与は、DSS水溶液の飲水開始後6日目および7日目に、生理食塩水を溶媒として0.5mg/mLの濃度に調整したHMGB1ペプチド(1-44)溶液を200μL/匹の量(ペプチドの投与量としては5mg/kg)で静脈に注入することにより行った。対照群には、DSS水溶液の飲水開始後6日目および7日目に、生理食塩水を200μL/匹の量で静脈に注入した。正常マウス(n=3)には物質の投与を行わなかった。なお、以下において、「DSS水溶液の飲水開始後X日目」を「DSS飲水X日目」と省略して表記する。
DSS水溶液の飲水開始から大腸の摘出時まで毎日、マウスの体重を測定した。DSS飲水9日目にマウスから大腸を摘出し、大腸長を測定した。摘出した大腸のうち肛門に近い末端部分からmRNAを抽出し、定量PCRによって炎症性サイトカイン(TNF-α、IL-1β、IL-6)の発現量を解析した。
i)体重変化
試験期間中におけるマウスの体重変化を図1に示す(正常マウスについて「Water」、対照群について「DSS+saline」、HMGB1ペプチド(1-44)投与群について「DSS+1-44」参照)。対照群のIBDモデルマウスの体重は日数経過に伴って減少し、DSS飲水9日目には正常マウスより顕著に小さくなった。これに対し、HMGB1ペプチド(1-44)投与群では、一旦減少した体重がペプチドの投与後に回復し、DSS飲水9日目には対照群より顕著に大きくなった。
図2に示すとおり、対照群のIBDモデルマウスの大腸長が正常マウスよりも有意に短くなる条件において、HMGB1ペプチド(1-44)投与群の大腸長は対照群より有意に長かった(正常マウスについて「Water」、対照群について「DSS+saline」、HMGB1ペプチド(1-44)投与群について「DSS+1-44」参照)。かかる結果は、IBD のモデルであるDSS誘発腸炎における大腸の短縮がHMGB1ペプチド(1-44)の投与により抑制されたことを示す。
DSS飲水9日目の大腸における炎症性サイトカインの発現量を図3に示す(正常マウスについて「Water」、対照群について「DSS+saline」、HMGB1ペプチド(1-44)投与群について「DSS+1-44」参照)。対照群のIBDモデルマウスでは、TNF-α、IL-1βおよびIL-6の発現が正常マウスよりも顕著に高かった。一方、HMGB1ペプチド(1-44)投与群におけるTNF-α、IL-1βおよびIL-6の発現は対照群より有意に低かった。かかる結果は、IBD のモデルであるDSS誘発腸炎における炎症性サイトカインの発現がHMGB1ペプチド(1-44)の投与により抑制されたことを示す。
炎症性腸疾患に対するHMGB1断片ペプチドの有効性の評価(2)
i)薬剤およびマウス
DSS水溶液およびHMGB1ペプチド(1-44)の調製、ならびに炎症性腸疾患モデルマウスの作成については実施例1と同様とした。
実施例1に記載の通り作成したIBDモデルマウスをHMGB1ペプチド(1-44)投与群(n=3)および対照群(n=3)に分けた。被験物質の投与は、DSS飲水1、3、5および7日目に、生理食塩水を溶媒として0.5mg/mLの濃度に調整したHMGB1ペプチド(1-44)溶液を200μL/匹の量(ペプチドの投与量としては5mg/kg)で静脈に注入することにより行った。対照群には、DSS飲水1、3、5および7日目に、生理食塩水を200μL/匹の量で静脈に注入した。正常マウス(n=3)には物質の投与を行わなかった。
DSS水溶液の飲水開始から大腸の摘出時まで毎日、マウスの体重を測定した。DSS飲水10日目にマウスから大腸を摘出し、大腸長を測定した。摘出した大腸のうち肛門に近い末端部分を用いて腸管断面の組織切片を作成し、ヘマトキシリン・エオジン(HE)染色を行った。
i)体重変化
試験期間中におけるマウスの体重変化を図4に示す(正常マウスについて「Water」、対照群について「DSS+saline」、HMGB1ペプチド(1-44)投与群について「DSS+1-44」参照)。IBDモデルマウス(対照群およびHMGB1ペプチド(1-44)投与群)の体重は日数経過に伴って減少し、DSS飲水10日目には正常マウスより顕著に小さくなった。HMGB1ペプチド(1-44)投与群では、対照群と比較して体重減少が抑制されており、DSS飲水10日目の体重は対照群より顕著に大きかった。
図5に示すとおり、対照群のIBDモデルマウスの大腸長が正常マウスよりも有意に短くなる条件において、HMGB1ペプチド(1-44)投与群の大腸長は対照群より有意に長かった(正常マウスについて「Water」、対照群について「DSS+saline」、HMGB1ペプチド(1-44)投与群について「DSS+1-44」参照)。かかる結果は、IBD のモデルであるDSS誘発腸炎における大腸の短縮がHMGB1ペプチド(1-44)の投与により抑制されたことを示す。
DSS飲水10日目における大腸組織のHE染色像を図6に示す(正常マウスについて「Water」、対照群について「DSS+saline」、HMGB1ペプチド(1-44)投与群について「DSS+1-44」参照)。対照群のIBDモデルマウスでは粘膜組織が損傷しているのに対し、HMGB1ペプチド(1-44)投与群では粘膜組織の損傷が抑制されていた。かかる結果は、IBD のモデルであるDSS誘発腸炎における大腸粘膜組織の損傷がHMGB1ペプチド(1-44)の投与により抑制されたことを示す。
炎症性腸疾患に対するHMGB1断片ペプチドの有効性の評価(3)
i)薬剤およびマウス
DSS水溶液およびHMGB1ペプチド(1-44)の調製、ならびに炎症性腸疾患モデルマウスの作成については実施例1と同様とした。
約5mm×5mmの大きさに切った生体吸収性ハイドロゲル(MedGel(登録商標) PI5、株式会社メドジェル製)に、生理食塩水を溶媒として5μg/μLの濃度に調整したHMGB1ペプチド(1-44)溶液を20μL滴下して含有させ、氷冷下で30分静置したものをHMGB1ペプチド(1-44)投与群のマウスへの埋め込みに用いた。また、これと同様の手順に従い、HMGB1ペプチド(1-44)溶液の代わりに生理食塩水を含有させたハイドロゲルを対照群のマウスへの埋め込みに用いた。
実施例1に記載の通り作成したIBDモデルマウスをHMGB1ペプチド(1-44)投与群(n=3)および対照群(n=3)に分けた。被験物質の投与は、DSS水溶液の飲水開始の1日前に、上記の通り調製したHMGB1ペプチド(1-44)溶液含有ハイドロゲルをマウスの背部に埋め込むことにより行った。対照群のマウスの背部には、DSS水溶液の飲水開始の1日前に、上記の通り調製した生理食塩水含有ハイドロゲルを埋め込んだ。正常マウス(n=3)には物質の投与を行わなかった。
DSS水溶液の飲水開始から大腸の摘出時まで毎日、マウスの体重を測定した。DSS飲水10日目にマウスから大腸を摘出し、大腸長を測定した。
i)体重変化
試験期間中におけるマウスの体重変化を図7に示す(正常マウスについて「Water」、対照群について「DSS+PI5 saline」、HMGB1ペプチド(1-44)投与群について「DSS+PI5 1-44」参照)。IBDモデルマウス(対照群およびHMGB1ペプチド(1-44)投与群)の体重は日数経過に伴って減少し、DSS飲水10日目には正常マウスより小さくなった。HMGB1ペプチド(1-44)投与群では、対照群と比較して体重減少が抑制されており、DSS飲水10日目の体重は対照群より大きかった。
図8に示すとおり、対照群のIBDモデルマウスの大腸長が正常マウスよりも短くなる条件において、HMGB1ペプチド(1-44)投与群の大腸長は対照群より長かった(正常マウスについて「Water」、対照群について「DSS+PI5 saline」、HMGB1ペプチド(1-44)投与群について「DSS+PI5 1-44」参照)。かかる結果は、IBD のモデルであるDSS誘発腸炎における大腸の短縮がHMGB1ペプチド(1-44)の投与により抑制されたことを示す。
炎症性腸疾患モデルにおける間葉系幹細胞(MSCs)の投与
i)薬剤およびマウス
DSS水溶液およびHMGB1ペプチド(1-44)の調製、ならびに炎症性腸疾患モデルマウスの作成については実施例1と同様とした。
実施例1に記載の通り作成したIBDモデルマウスを間葉系幹細胞(MSC)投与群(n=3)および対照群(n=3)に分けた。C57BL/6マウス(6~8週齢、雄)の大腿骨から骨髄を採取し、培地としてMesenCult(商標)MSC Basal Medium (Mouse)(STEMCELL Technologies社製、10nM Rock inhibitorおよびMesenPureを含む)を用いてプラスチックプレート上で培養することにより付着性コロニーとして間葉系幹細胞を得た。DSS飲水5日目に、3回継代後の前記間葉系幹細胞をPBSに懸濁して1×106個/mLに調整し、MSC投与群のマウスの腹腔内に100μL投与した。対照群のマウスには、DSS飲水5日目に、腹腔内にPBSを100μL投与した。正常マウス(n=3)には物質の投与を行わなかった。
DSS水溶液の飲水開始後9日目まで毎日、マウスの体重を測定した。
試験期間中におけるマウスの体重変化を図9に示す(正常マウスについて「Water」、対照群について「DSS+PBS」、MSC投与群について「DSS+MSCs」参照)。IBDモデルマウス(対照群およびMSC投与群)の体重は日数経過に伴って減少した。MSC投与群と対照群の間では体重変化に差がなく、MSC投与による改善効果は見られなかった。
Claims (6)
- 以下の(a)から(c)のいずれかに記載の物質を含有する、炎症性腸疾患の予防および/または治療のための医薬組成物:
(a)配列番号:1に記載のアミノ酸配列を含むHMGB1断片ペプチド;
(b)配列番号:1に記載のアミノ酸配列において1若しくは複数個のアミノ酸が置換、欠失、挿入若しくは付加されたアミノ酸配列を含むペプチド; および
(c)配列番号:1に記載のアミノ酸配列と約80%以上の配列同一性を有するアミノ酸配列を含むペプチド。 - 炎症性腸疾患が非特異的炎症性腸疾患である、請求項1に記載の医薬組成物。
- 非特異的炎症性腸疾患が潰瘍性大腸炎である、請求項2に記載の医薬組成物。
- 非特異的炎症性腸疾患がクローン病である、請求項2に記載の医薬組成物。
- 以下の(a)から(c)のいずれかに記載の物質を含有する、炎症性腸疾患の患者において体重減少または腸管粘膜の損傷を抑制するための医薬組成物:
(a)配列番号:1に記載のアミノ酸配列を含むHMGB1断片ペプチド;
(b)配列番号:1に記載のアミノ酸配列において1若しくは複数個のアミノ酸が置換、欠失、挿入若しくは付加されたアミノ酸配列を含むペプチド; および
(c)配列番号:1に記載のアミノ酸配列と約80%以上の配列同一性を有するアミノ酸配列を含むペプチド。 - 炎症性腸疾患が非特異的炎症性腸疾患である、請求項5に記載の医薬組成物。
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| US11197895B2 (en) | 2008-04-30 | 2021-12-14 | StemRIM Inc. | Method for collecting functional cells in vivo with high efficiency |
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| US11969459B2 (en) | 2017-01-27 | 2024-04-30 | StemRIM Inc. | Therapeutic agent for cardiomyopathy, old myocardial infarction and chronic heart failure |
| US12421498B2 (en) | 2017-12-01 | 2025-09-23 | StemRIM Inc. | Ectodermal mesenchymal stem cells and method for producing same |
| US12428458B2 (en) | 2018-02-08 | 2025-09-30 | StemRIM Inc. | Therapeutic agent for psoriasis |
| WO2020071520A1 (ja) * | 2018-10-05 | 2020-04-09 | 株式会社ステムリム | 間葉系幹細胞の動員活性を有するペプチド |
| US12304933B2 (en) | 2018-10-05 | 2025-05-20 | StemRIM Inc. | Disease treatment drug based on mesenchymal-stem-cell mobilization |
| JPWO2021201260A1 (ja) * | 2020-04-03 | 2021-10-07 | ||
| WO2021201260A1 (ja) * | 2020-04-03 | 2021-10-07 | 株式会社ステムリム | 間葉系幹細胞の動員活性を有するペプチド |
| JP7672636B2 (ja) | 2020-04-03 | 2025-05-08 | 株式会社ステムリム | 間葉系幹細胞の動員活性を有するペプチド |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3718561A1 (en) | 2020-10-07 |
| US11298403B2 (en) | 2022-04-12 |
| JPWO2019107530A1 (ja) | 2020-11-26 |
| JP2023134616A (ja) | 2023-09-27 |
| CN111542335A (zh) | 2020-08-14 |
| EP3718561A4 (en) | 2021-07-21 |
| US20200384074A1 (en) | 2020-12-10 |
| JP7590724B2 (ja) | 2024-11-27 |
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