CN116098884A - 一种n-乙酰-l-酪氨酸在制备治疗炎症性肠病药物中的应用 - Google Patents
一种n-乙酰-l-酪氨酸在制备治疗炎症性肠病药物中的应用 Download PDFInfo
- Publication number
- CN116098884A CN116098884A CN202211590726.6A CN202211590726A CN116098884A CN 116098884 A CN116098884 A CN 116098884A CN 202211590726 A CN202211590726 A CN 202211590726A CN 116098884 A CN116098884 A CN 116098884A
- Authority
- CN
- China
- Prior art keywords
- inflammatory bowel
- tyrosine
- acetyl
- bowel disease
- medicament
- 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.)
- Granted
Links
- CAHKINHBCWCHCF-JTQLQIEISA-N N-acetyl-L-tyrosine Chemical compound CC(=O)N[C@H](C(O)=O)CC1=CC=C(O)C=C1 CAHKINHBCWCHCF-JTQLQIEISA-N 0.000 title claims abstract description 47
- 229960001682 n-acetyltyrosine Drugs 0.000 title claims abstract description 46
- 208000022559 Inflammatory bowel disease Diseases 0.000 title claims abstract description 23
- 239000003814 drug Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims description 11
- 229940079593 drug Drugs 0.000 title abstract description 5
- HSINOMROUCMIEA-FGVHQWLLSA-N (2s,4r)-4-[(3r,5s,6r,7r,8s,9s,10s,13r,14s,17r)-6-ethyl-3,7-dihydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1h-cyclopenta[a]phenanthren-17-yl]-2-methylpentanoic acid Chemical compound C([C@@]12C)C[C@@H](O)C[C@H]1[C@@H](CC)[C@@H](O)[C@@H]1[C@@H]2CC[C@]2(C)[C@@H]([C@H](C)C[C@H](C)C(O)=O)CC[C@H]21 HSINOMROUCMIEA-FGVHQWLLSA-N 0.000 claims abstract description 17
- 239000003613 bile acid Substances 0.000 claims abstract description 17
- 230000029142 excretion Effects 0.000 claims abstract description 11
- 230000001737 promoting effect Effects 0.000 claims abstract description 9
- 239000004480 active ingredient Substances 0.000 claims abstract description 8
- 210000004027 cell Anatomy 0.000 claims description 27
- 206010009900 Colitis ulcerative Diseases 0.000 claims description 13
- 201000006704 Ulcerative Colitis Diseases 0.000 claims description 13
- 239000000546 pharmaceutical excipient Substances 0.000 claims description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- 238000009472 formulation Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 5
- 229940124531 pharmaceutical excipient Drugs 0.000 claims description 5
- 239000000969 carrier Substances 0.000 claims description 3
- 210000002490 intestinal epithelial cell Anatomy 0.000 claims description 3
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 claims description 2
- 108010017384 Blood Proteins Proteins 0.000 claims description 2
- 102000004506 Blood Proteins Human genes 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 2
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 claims description 2
- 229940063655 aluminum stearate Drugs 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims description 2
- 239000002775 capsule Substances 0.000 claims description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 2
- 239000007884 disintegrant Substances 0.000 claims description 2
- 229940093476 ethylene glycol Drugs 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- 235000011187 glycerol Nutrition 0.000 claims description 2
- 229960005150 glycerol Drugs 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 230000003834 intracellular effect Effects 0.000 claims description 2
- 239000000787 lecithin Substances 0.000 claims description 2
- 235000010445 lecithin Nutrition 0.000 claims description 2
- 229940067606 lecithin Drugs 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 235000021317 phosphate Nutrition 0.000 claims description 2
- 239000006187 pill Substances 0.000 claims description 2
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 2
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 2
- 239000003826 tablet Substances 0.000 claims description 2
- 239000002562 thickening agent Substances 0.000 claims description 2
- 230000002708 enhancing effect Effects 0.000 claims 3
- 239000001488 sodium phosphate Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002609 medium Substances 0.000 description 10
- 241000699670 Mus sp. Species 0.000 description 9
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 8
- 229920003045 dextran sodium sulfate Polymers 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 241000699666 Mus <mouse, genus> Species 0.000 description 4
- 239000006285 cell suspension Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- TVZRAEYQIKYCPH-UHFFFAOYSA-N 3-(trimethylsilyl)propane-1-sulfonic acid Chemical compound C[Si](C)(C)CCCS(O)(=O)=O TVZRAEYQIKYCPH-UHFFFAOYSA-N 0.000 description 3
- OUYCCCASQSFEME-QMMMGPOBSA-N L-tyrosine Chemical compound OC(=O)[C@@H](N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-QMMMGPOBSA-N 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 3
- 102100039019 Nuclear receptor subfamily 0 group B member 1 Human genes 0.000 description 3
- 210000001072 colon Anatomy 0.000 description 3
- 238000005138 cryopreservation Methods 0.000 description 3
- 230000007170 pathology Effects 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229960004441 tyrosine Drugs 0.000 description 3
- OUYCCCASQSFEME-UHFFFAOYSA-N tyrosine Natural products OC(=O)C(N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 208000004232 Enteritis Diseases 0.000 description 2
- 108010019160 Pancreatin Proteins 0.000 description 2
- 229930040373 Paraformaldehyde Natural products 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010171 animal model Methods 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 230000037396 body weight Effects 0.000 description 2
- 238000004113 cell culture Methods 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000002919 epithelial cell Anatomy 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007490 hematoxylin and eosin (H&E) staining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229940055695 pancreatin Drugs 0.000 description 2
- 229920002866 paraformaldehyde Polymers 0.000 description 2
- 210000000813 small intestine Anatomy 0.000 description 2
- 239000008223 sterile water Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- OOSZCNKVJAVHJI-UHFFFAOYSA-N 1-[(4-fluorophenyl)methyl]piperazine Chemical compound C1=CC(F)=CC=C1CN1CCNCC1 OOSZCNKVJAVHJI-UHFFFAOYSA-N 0.000 description 1
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- 244000215068 Acacia senegal Species 0.000 description 1
- 108700019265 Aromatic amino acid decarboxylase deficiency Proteins 0.000 description 1
- 241000416162 Astragalus gummifer Species 0.000 description 1
- 208000031648 Body Weight Changes Diseases 0.000 description 1
- 108091003079 Bovine Serum Albumin Proteins 0.000 description 1
- 229920002261 Corn starch Polymers 0.000 description 1
- 229920000084 Gum arabic Polymers 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 239000012980 RPMI-1640 medium Substances 0.000 description 1
- 229920001615 Tragacanth Polymers 0.000 description 1
- 102000003425 Tyrosinase Human genes 0.000 description 1
- 108060008724 Tyrosinase Proteins 0.000 description 1
- 235000010489 acacia gum Nutrition 0.000 description 1
- 239000000205 acacia gum Substances 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- BLFLLBZGZJTVJG-UHFFFAOYSA-N benzocaine Chemical compound CCOC(=O)C1=CC=C(N)C=C1 BLFLLBZGZJTVJG-UHFFFAOYSA-N 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000004579 body weight change Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 150000003943 catecholamines Chemical class 0.000 description 1
- 239000006143 cell culture medium Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 206010009887 colitis Diseases 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- DGLRDKLJZLEJCY-UHFFFAOYSA-L disodium hydrogenphosphate dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].OP([O-])([O-])=O DGLRDKLJZLEJCY-UHFFFAOYSA-L 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 229940088598 enzyme Drugs 0.000 description 1
- 239000012091 fetal bovine serum Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000834 fixative Substances 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 230000008642 heat stress Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 210000004969 inflammatory cell Anatomy 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002826 magnetic-activated cell sorting Methods 0.000 description 1
- 238000013227 male C57BL/6J mice Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012982 microporous membrane Substances 0.000 description 1
- 230000011278 mitosis Effects 0.000 description 1
- 239000002858 neurotransmitter agent Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000016236 parenteral nutrition Nutrition 0.000 description 1
- 239000001814 pectin Substances 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
- 229920001277 pectin Polymers 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000008363 phosphate buffer Substances 0.000 description 1
- 229920001592 potato starch Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229940074545 sodium dihydrogen phosphate dihydrate Drugs 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 235000010487 tragacanth Nutrition 0.000 description 1
- 239000000196 tragacanth Substances 0.000 description 1
- 229940116362 tragacanth Drugs 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 230000004614 tumor growth Effects 0.000 description 1
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
- A61K31/19—Carboxylic acids, e.g. valproic acid
- A61K31/195—Carboxylic acids, e.g. valproic acid having an amino group
- A61K31/197—Carboxylic acids, e.g. valproic acid having an amino group the amino and the carboxyl groups being attached to the same acyclic carbon chain, e.g. gamma-aminobutyric acid [GABA], beta-alanine, epsilon-aminocaproic acid or pantothenic acid
- A61K31/198—Alpha-amino acids, e.g. alanine or edetic acid [EDTA]
-
- 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
-
- 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
-
- 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]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Rheumatology (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Abstract
本发明属于生物医药技术领域,涉及一种N‑乙酰‑L‑酪氨酸在制备治疗炎症性肠病药物中的应用。本发明研究发现,NAT可通过促进胆汁酸外排介导缓解炎症性肠病的作用,因而可以作为活性成分制备治疗炎症性肠病的药物。
Description
技术领域
本发明属于生物医药技术领域,涉及一种N-乙酰-L-酪氨酸在制备治疗炎症性肠病药物中的应用。
背景技术
公开该背景技术部分的信息仅仅旨在增加对本发明的总体背景的理解,而不必然被视为承认或以任何形式暗示该信息构成已经成为本领域一般技术人员所公知的现有技术。
据发明人研究了解,N-乙酰-L-酪氨酸(N-Acetyl-L-tyrosine,NAT)是一种来源于AA乙酰酶作用下的酪氨酸,在体内迅速水解为酪氨酸,也因此通常在肠外营养中用于代替酪氨酸。NAT存在于健康动物的血液中,其浓度在热应激时增加。NAT与芳香族氨基酸脱羧酶缺乏症以及酪氨酸血症有关,能够作为儿茶酚胺的前体,用于神经递质治疗。此外,NAT还可以抑制肿瘤生长,同时还可能是有丝分裂的触发因子。然而,对于NAT其他作用及机制研究极少。
发明内容
为了解决现有技术的不足,本发明的目的是提供一种N-乙酰-L-酪氨酸在制备治疗炎症性肠病药物中的应用,本发明研究发现,NAT可通过促进胆汁酸外排介导缓解炎症性肠病的作用,因而可以作为活性成分制备治疗炎症性肠病的药物。
为了实现上述目的,本发明的技术方案为:
第一方面,一种N-乙酰-L-酪氨酸在制备促进胆汁酸外排制剂中的应用。
进一步地,促进胆汁酸外排制剂为促进细胞内胆汁酸外排制剂。
更进一步地,所述细胞为小肠上皮细胞。
另一方面,一种N-乙酰-L-酪氨酸在制备治疗炎症性肠病药物中的应用。
研究表明,N-乙酰-L-酪氨酸可以作为通过促进胆汁酸外排缓解肠炎的活性成分。
进一步地,治疗炎症性肠病药物中,N-乙酰-L-酪氨酸作为唯一活性成分。
进一步地,炎症性肠病为溃疡性结肠炎。
第三方面,一种治疗炎症性肠病的药物,由活性成分和药用辅料组成,所述活性成分为N-乙酰-L-酪氨酸。
本发明所述的药用辅料为载体和/或赋形剂。药用辅料的用量可以为药物总重量的1~99%。
进一步地,所述载体包括但不限于甘油、乙二醇、硬脂酸铝、卵磷脂、羧甲基纤维素钠、磷酸盐、血清蛋白等。
进一步地,所述赋形剂包括但不限于粘合剂、填充剂、增稠剂、崩解剂等。所述粘合剂例如阿拉伯胶、黄芪胶等。所述填充剂例如玉米淀粉、磷酸钙等。所述增稠剂例如藻蛋白酸钠、果胶等。所述崩解剂例如马铃薯淀粉等。
进一步地,所述药物的剂型为片剂、颗粒剂、胶囊、丸剂、注射剂等。
本发明的有益效果为:
通过细胞实验表明,N-乙酰-L-酪氨酸能够促进小肠上皮细胞系MODE-K内的胆汁酸外排,经过溃疡性结肠炎模型实验表明,N-乙酰-L-酪氨酸可降低溃疡性结肠炎严重程度,缓解肠炎,在小鼠的实验性溃疡性结肠炎模型中有较好治疗效果。
附图说明
构成本发明的一部分的说明书附图用来提供对本发明的进一步理解,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。
图1为本发明实施例中NAT缓解DSS诱导的溃疡性结肠炎的表征图;
图2为本发明实施例中NAT促进胆汁酸外排的表征图。
具体实施方式
应该指出,以下详细说明都是示例性的,旨在对本发明提供进一步的说明。除非另有指明,本文使用的所有技术和科学术语具有与本发明所属技术领域的普通技术人员通常理解的相同含义。
为了使得本领域技术人员能够更加清楚地了解本发明的技术方案,以下将结合具体的实施例详细说明本发明的技术方案。
实施例
实验材料:MODE-K:小鼠小肠上皮细胞系,由本实验室保存。
实验动物:C57BL/6J,雄性,6周龄,购自江苏集萃药康生物科技股份有限公司。
小鼠按SPF级别环境饲养于山东大学药学院SPF级动物房,符合山东大学动物饲养及管理条例。所有动物实验和流程严格按照山东大学实验动物条例进行。
实验制剂:
细胞培养基:RPMI1640培养基购于迈晨科技(北京)有限公司。
胎牛血清:购于Gibco公司。
磷酸盐缓冲液(1×PBS):9g NaCl、0.421g Na2HPO4、0.144g KH2PO4,溶于1L三蒸水。0.22μm微孔滤膜过滤,存于4℃冰箱备用。
0.25%胰酶溶液:购于北京索莱宝科技有限公司。
0.05Mβ-巯基乙醇溶液:37μLβ-巯基乙醇溶于10mL 1×PBS,0.22μm微孔滤膜过滤,存于4℃冰箱备用。
二甲亚砜(DMSO):购于索莱宝生物科技有限公司(D2650)。
细胞冻存液:购于上海瑟欧生物科技有限公司。
葡聚糖硫酸钠(Dextran Sulfate Sodium Salt Colitis Grade,DSS):购于MPBiomedicals(160110)。
4%多聚甲醛通用型组织固定液:4%多聚甲醛、1.9mM二水磷酸二氢钠、8.1mM十二水磷酸氢二钠,购于合肥兰杰柯科技有限公司(BL539A)。
实验方法:
细胞复苏:
(1)取20mL培养基于50mL离心管中,37℃水浴加热10-15min。
(2)-80℃冰箱中取出冻存的细胞,迅速放入37℃水浴锅中,以“8”字型摇晃使其快速融化。
(3)将融化的细胞悬液转移至预热过的培养基中,800g离心5min。
(4)弃上清,弹起细胞沉淀,用10mL预热好的培养基重悬细胞沉淀。
(5)将其转移至细胞培养皿中,于37℃恒温培养箱培养。
贴壁细胞的传代培养:
(1)当细胞密度达到80%时,弃培养基。
(2)加入2-3mL 0.25%胰酶,37℃恒温培养箱进行消化3min。
(3)加入2-3mL培养基终止消化。
(4)将细胞轻轻吹打下来,并转移细胞悬液至15mL离心管内。
(5)800g离心5min,弃上清,弹起细胞沉淀,用1mL培养基悬起细胞沉淀。
(6)将细胞悬液接入新的细胞培养皿中,加入适量的培养基,于37℃恒温培养箱培养。
细胞的冻存:
(1)向离心得到的细胞沉淀中加入1mL冻存液,吹打混匀。
(2)将1mL细胞悬液加入至冻存管内。
(3)将冻存管置于冻存盒内,置于-80℃冰箱中。24h后取出,放于液氮罐中保存。
小鼠实验性溃疡性结肠炎模型的建立及治疗:
(1)C57BL/6J 8只,6周龄,雄性,SPF级环境下饲养一周后,给3%DSS饮水,与此同时给予NAT治疗。
(2)配制NAT,按100mg/kg的剂量对小鼠进行灌胃,对照组灌胃等体积的无菌水,每天一次。
(3)每天称量各组小鼠体重,在第6天处死小鼠,收集结肠进行评估,统计长度差异、HE染色后进行病理评分。
(4)将所有检测的小鼠体重用Graph Pad Prism 9软件进行统计分析,绘制体重变化曲线。
NAT对胆汁酸外排的影响:
(1)将MODE-K细胞按5万/孔接入96孔板,加200μL培养基,培养24小时。
(2)弃培养基,配制荧光DCA,按10μM的浓度处理细胞30min后,换培养基缓冲2小时。
(3)配制NAT,按10uM浓度处理细胞12小时,Control组加等量DMSO。
(4)消化细胞,800g离心5min,用MACS buffer重悬。
(5)用Gallios流式细胞仪检测control及NAT处理组细胞的DCA含量并用FlowJo进行分析。
实验结果:
1.体重变化曲线及病理:
为了探究NAT在溃疡性结肠炎中的治疗作用,选择6周龄雄性C57BL/6J鼠,给3%DSS(葡聚糖硫酸钠)建立实验性溃疡性结肠炎模型并随机分为两组,分别为Control组和NAT治疗组。治疗组小鼠按100mg/kg的剂量对小鼠灌胃NAT,对照组灌胃等体积的无菌水,从Day 0开始每天灌胃一次,同时每天测量小鼠体重(图1A)。图1B为小鼠体重变化曲线,从图中可以看出,与Control组相比,治疗组体重下降较少。从结肠长度的统计结果可以看出,同对照组相比,NAT治疗组结肠显著较长(图1C)。HE染色结果显示,与对照组相比,NAT治疗组肠道上皮结构更完整,炎性细胞浸润较少,粘膜下水肿也更轻(图1D)。病理评分统计结果分析表明,与对照组相比,NAT治疗明显缓解小鼠溃疡性结肠炎(图1E)。这些结果表明,NAT可降低溃疡性结肠炎严重程度,缓解炎症性肠病,在小鼠的实验性溃疡性结肠炎模型中有较好治疗效果。
2.NAT促进胆汁酸外排:
为了探究NAT缓解溃疡性结肠炎的机制,用小鼠小肠上皮细胞系MODE-K对NAT在胆汁酸外排中的影响进行检测。将MODE-K细胞按5万/孔接入96孔板培养24小时,弃培养基,配制荧光DCA(9,10-二腈基蒽),按10uM的浓度处理细胞30min后,换培养基缓冲2小时后,按10μM浓度用NAT处理细胞12小时,Control组加等量DMSO,用Gallios流式细胞仪检测Control及NAT处理组细胞的DCA含量并用FlowJo进行分析。结果显示NAT组细胞中DCA含量明显少于Control组,如图2所示,说明NAT具有促进胆汁酸外排的作用。
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (10)
1.一种N-乙酰-L-酪氨酸在制备促进胆汁酸外排制剂中的应用。
2.如权利要求1所述的N-乙酰-L-酪氨酸在制备促进胆汁酸外排制剂中的应用,其特征是,促进胆汁酸外排制剂为促进细胞内胆汁酸外排制剂。
3.如权利要求2所述的N-乙酰-L-酪氨酸在制备促进胆汁酸外排制剂中的应用,其特征是,所述细胞为小肠上皮细胞。
4.一种N-乙酰-L-酪氨酸在制备治疗炎症性肠病药物中的应用。
5.如权利要求4所述的N-乙酰-L-酪氨酸在制备治疗炎症性肠病药物中的应用,其特征是,治疗炎症性肠病药物中,N-乙酰-L-酪氨酸作为唯一活性成分。
6.如权利要求4所述的N-乙酰-L-酪氨酸在制备治疗炎症性肠病药物中的应用,其特征是,炎症性肠病为溃疡性结肠炎。
7.一种治疗炎症性肠病的药物,其特征是,由活性成分和药用辅料组成,所述活性成分为N-乙酰-L-酪氨酸。
8.如权利要求7所述的治疗炎症性肠病的药物,其特征是,所述的药用辅料为载体,所述载体为甘油、乙二醇、硬脂酸铝、卵磷脂、羧甲基纤维素钠、磷酸盐或血清蛋白。
9.如权利要求7所述的治疗炎症性肠病的药物,其特征是,所述的药用辅料为赋形剂,所述赋形剂为粘合剂、填充剂、增稠剂和/或崩解剂。
10.如权利要求7所述的治疗炎症性肠病的药物,其特征是,所述药物的剂型为片剂、颗粒剂、胶囊、丸剂或注射剂。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202211590726.6A CN116098884B (zh) | 2022-12-12 | 2022-12-12 | 一种n-乙酰-l-酪氨酸在制备治疗炎症性肠病药物中的应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202211590726.6A CN116098884B (zh) | 2022-12-12 | 2022-12-12 | 一种n-乙酰-l-酪氨酸在制备治疗炎症性肠病药物中的应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN116098884A true CN116098884A (zh) | 2023-05-12 |
CN116098884B CN116098884B (zh) | 2024-04-19 |
Family
ID=86258818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202211590726.6A Active CN116098884B (zh) | 2022-12-12 | 2022-12-12 | 一种n-乙酰-l-酪氨酸在制备治疗炎症性肠病药物中的应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN116098884B (zh) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140294902A1 (en) * | 2013-04-02 | 2014-10-02 | Protagonist Therapeutics, Inc. | Novel a4b7 peptide antagonists |
US20170333468A1 (en) * | 2014-11-10 | 2017-11-23 | The Regents Of The University Of California | Mir-214 as a diagnostic and prognostic biomarker specific for ulcerative colitis and a mir-214 inhibitor for treatment of same |
US20190274983A1 (en) * | 2016-10-26 | 2019-09-12 | Washington University | Compositions comprising desaminotyrosine and uses thereof to enhance type i interferon stimulation |
CN111153829A (zh) * | 2019-12-26 | 2020-05-15 | 烟台鲁银药业有限公司 | 一种n-乙酰-l-酪氨酸的制备方法 |
CN114716335A (zh) * | 2020-12-22 | 2022-07-08 | 武汉远大弘元股份有限公司 | 制备n-乙酰-l-酪氨酸的方法 |
-
2022
- 2022-12-12 CN CN202211590726.6A patent/CN116098884B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140294902A1 (en) * | 2013-04-02 | 2014-10-02 | Protagonist Therapeutics, Inc. | Novel a4b7 peptide antagonists |
US20170333468A1 (en) * | 2014-11-10 | 2017-11-23 | The Regents Of The University Of California | Mir-214 as a diagnostic and prognostic biomarker specific for ulcerative colitis and a mir-214 inhibitor for treatment of same |
US20190274983A1 (en) * | 2016-10-26 | 2019-09-12 | Washington University | Compositions comprising desaminotyrosine and uses thereof to enhance type i interferon stimulation |
CN111153829A (zh) * | 2019-12-26 | 2020-05-15 | 烟台鲁银药业有限公司 | 一种n-乙酰-l-酪氨酸的制备方法 |
CN114716335A (zh) * | 2020-12-22 | 2022-07-08 | 武汉远大弘元股份有限公司 | 制备n-乙酰-l-酪氨酸的方法 |
Also Published As
Publication number | Publication date |
---|---|
CN116098884B (zh) | 2024-04-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109288816B (zh) | 一种氯喹凝胶及其制备方法和应用 | |
CN108743600B (zh) | 一种天然药物组合物和含有该天然药物的中药组合物及其应用 | |
CN112353792A (zh) | 异泽兰黄素在制备预防或治疗酒精性肝病药物中的应用 | |
WO2008040187A1 (fr) | Utilisation d'astilbine dans la préparation d'un médicament pour le traitement ou la prévention de l'insuffisance rénale aiguë ou chronique, de la fibrose rénale et de la néphropathie diabétique | |
CN116098884B (zh) | 一种n-乙酰-l-酪氨酸在制备治疗炎症性肠病药物中的应用 | |
CN101095691A (zh) | 连翘苷在制备治疗或预防急慢性肝损伤及肝纤维化的药物中的应用 | |
CN116549470A (zh) | 异槲皮素对卵巢颗粒细胞的增值和保护应用 | |
KR101617912B1 (ko) | 말초혈액 단핵세포를 유효성분으로 포함하는 예방 또는 치료용 약제학적 조성물 | |
CN113813254B (zh) | 白术内酯ⅰ在制备妊娠合并糖尿病胚胎发育保护药物中的应用 | |
CN115919843A (zh) | Z-藁本内酯在抗轮状病毒中的应用 | |
CN102805743A (zh) | 牛蒡苷元在治疗血管生成性疾病中的应用 | |
CN113712959A (zh) | 瑞香素在制备防治椎间盘退变药物中的应用 | |
CN113082016A (zh) | 高良姜素在通过促进骨髓间充质干细胞成骨分化防治骨质疏松症方面的用途 | |
CN111870689A (zh) | 一种纳豆激酶在治疗骨质疏松药物中的应用 | |
CN113288943A (zh) | 一种中药组合物在制备治疗或预防冠状病毒感染的药物中的应用 | |
CN110169968A (zh) | 雷帕霉素在制备防治辐射诱导小肠损伤药物中的应用 | |
CN113975263B (zh) | 一种抑制真菌的组合物及其制备方法和应用 | |
CN113599396B (zh) | 天然化合物联合人间充质干细胞在制备治疗骨质疏松症药物中的应用 | |
CN116650457B (zh) | Pdk1抑制剂dca在治疗主动脉瘤和夹层中的应用 | |
CN113876864B (zh) | 一种用于治疗不孕症的药物组合物及其制备方法和用途 | |
CN109985061B (zh) | 石斛多糖在制备预防和/或治疗前列腺增生药物中的应用 | |
CN106176699A (zh) | 圆柚酮的神经保护用途 | |
CN116270810A (zh) | 肉苁蓉苯乙醇总苷在制备绝经后骨质疏松药物中的应用 | |
CN116115715A (zh) | 一种三棱提取物在制备治疗肺纤维化的药物中的应用 | |
CN118766951A (zh) | 石斛多糖在制备预防和/或治疗前列腺增生药物中的应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |