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CN115737641A - Application of pure penicilliol in preparation of medicine for treating inflammatory bowel disease - Google Patents

Application of pure penicilliol in preparation of medicine for treating inflammatory bowel disease Download PDF

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CN115737641A
CN115737641A CN202211553498.5A CN202211553498A CN115737641A CN 115737641 A CN115737641 A CN 115737641A CN 202211553498 A CN202211553498 A CN 202211553498A CN 115737641 A CN115737641 A CN 115737641A
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zebrafish
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bowel disease
tnbs
intestinal
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CN115737641B (en
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张云
李风玲
李培海
钟雅韵
曹永娜
刘可春
夏青
孙晨
王利振
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Biology Institute of Shandong Academy of Sciences
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Abstract

The invention relates to application of pure penicillium chlororaphe alcohol in preparation of a medicament for treating inflammatory bowel diseases, belongs to the technical field of new medical application, and particularly relates to application of pure penicillium chlororaphe alcohol in preparation of a medicament for treating inflammatory bowel diseases.

Description

纯绿青霉醇在制备治疗炎症性肠病药物中的应用Application of pure green penicillol in preparation of medicine for treating inflammatory bowel disease

技术领域technical field

本发明属于医药新用途技术领域,具体涉及纯绿青霉醇在制备治疗炎症性肠病药物中的应用。The invention belongs to the technical field of new uses of medicine, and in particular relates to the application of pure green penicillol in the preparation of medicines for treating inflammatory bowel disease.

背景技术Background technique

炎症性肠病(inflammatory bowel diseases,IBD)是对表现出慢性或复发性免疫反应和炎症症状的胃肠道疾病的统称。随着人们生活方式的日益改变以及生活压力的与日俱增,IBD的全球发病率正呈逐年攀升趋势,我国发病率居亚洲之首。IBD患者的临床表现主要包括:腹痛、腹泻、黏液血便等肠内表现及瘘管形成、肛周脓肿等肠外表现以及血便、腹部痉挛、发热、疲劳、骨盆区域的内部严重抽筋、肌肉痉挛,食欲减少和体重减轻等。目前治疗IBD药物品种匮缺,尚无有效的治疗手段,常规治疗虽能改善症状,但复发率高且对重症患者疗效不佳,总体临床缓解率不超过50%。IBD治疗的创新药物研发已成为临床的迫切需求。Inflammatory bowel disease (IBD) is a general term for gastrointestinal diseases that exhibit chronic or recurrent immune response and inflammatory symptoms. With the changing of people's lifestyles and the increasing pressure of life, the global incidence of IBD is increasing year by year, and the incidence of IBD in my country ranks first in Asia. The clinical manifestations of IBD patients mainly include: intestinal manifestations such as abdominal pain, diarrhea, mucus and bloody stools, extraintestinal manifestations such as fistula formation, perianal abscess, bloody stools, abdominal cramps, fever, fatigue, severe internal cramps in the pelvic region, muscle spasms, and appetite reduction and weight loss etc. At present, there is a shortage of drugs for the treatment of IBD, and there is no effective treatment method. Although conventional treatment can improve symptoms, the recurrence rate is high and the curative effect is not good for severe patients. The overall clinical remission rate does not exceed 50%. The development of innovative drugs for the treatment of IBD has become an urgent clinical need.

硫酸铜(CuSO4)被广泛用于建立斑马鱼急性神经性炎症模型。硫酸铜损伤斑马鱼体表侧线的末梢器官神经丘,造成斑马鱼炎症细胞迁移至神经丘周围(侧线部位);脂多糖(LPS)导致的全身感染性炎症模型;上述两种炎症模型与2,4,6-三硝基苯磺酸(TNBS)导致的炎症性肠病模型不同。Copper sulfate (CuSO 4 ) is widely used to establish a model of acute neuroinflammation in zebrafish. Copper sulfate damages the peripheral organ neuromast of the zebrafish lateral line, causing zebrafish inflammatory cells to migrate around the neuromast (lateral line); a systemic infectious inflammation model caused by lipopolysaccharide (LPS); the above two inflammatory models and 2, Different models of inflammatory bowel disease induced by 4,6-trinitrobenzenesulfonic acid (TNBS).

2,4,6-三硝基苯磺酸(2,4,6-trinitrobenzenesulfonic acid,TNBS)、葡聚糖硫酸钠(dextran sodium sulfate,DSS)、噁唑酮等均是常用的斑马鱼IBD疾病模型的诱变剂。其中,TNBS诱导具有造模时间短、可重复高、易于诱导等优点,是经典的IBD化学诱变剂。TNBS可造成斑马鱼肠蠕动消失、肠道扩张、肠梗阻形成,同时还可导致肠绒毛长度缩短、杯状细胞数量增加,与IBD患者的病理表现极为相似。2,4,6-trinitrobenzenesulfonic acid (2,4,6-trinitrobenzenesulfonic acid, TNBS), dextran sodium sulfate (dextran sodium sulfate, DSS), oxazolone, etc. Model mutagens. Among them, TNBS induction has the advantages of short modeling time, high reproducibility, and easy induction, and is a classic IBD chemical mutagen. TNBS can cause the disappearance of intestinal peristalsis, intestinal dilatation, and intestinal obstruction in zebrafish, as well as shorten the length of intestinal villi and increase the number of goblet cells, which is very similar to the pathological manifestations of IBD patients.

Fleming等人采用实验小鼠模型中使用的TNBS来诱导斑马鱼的肠道炎症,将斑马鱼浸泡在TNBS中,斑马鱼出现肠腔扩大,肠皱褶消失,杯状细胞数量增加,上皮细胞中肿瘤坏死因子-α(TNF-α)染色阳性。Oscar等利用斑马鱼作为研究肠道炎症的模型,将斑马鱼幼鱼从72hpf到120hpf暴露于TNBS,观察得到TNBS导致中性粒细胞募集到肠道,证明了TNBS能够诱导斑马鱼肠道炎症。He等用TNBS诱发斑马鱼幼鱼IBD样小肠结肠炎并收集的斑马鱼幼体进行检测,研究发现,TNBS处理的斑马鱼中toll样受体3(TLR3)和TLRs信号通路分子MyD88和TRIF的表达、NF-κB的激活以及炎症细胞因子肿瘤坏死因子-α的产生均受到刺激。Fleming et al. used TNBS used in experimental mouse models to induce intestinal inflammation in zebrafish, soaked zebrafish in TNBS, zebrafish had enlarged intestinal lumen, disappeared intestinal folds, increased the number of goblet cells, and increased the number of epithelial cells. Tumor necrosis factor-α (TNF-α) staining was positive. Oscar et al. used zebrafish as a model to study intestinal inflammation, exposed zebrafish juveniles to TNBS from 72hpf to 120hpf, observed that TNBS led to the recruitment of neutrophils to the intestine, and proved that TNBS can induce zebrafish intestinal inflammation. He et al. used TNBS to induce IBD-like enterocolitis in zebrafish juveniles and collected zebrafish larvae for detection. The study found that the expression of toll-like receptor 3 (TLR3) and TLRs signaling pathway molecules MyD88 and TRIF in TNBS-treated zebrafish , activation of NF-κB, and production of the inflammatory cytokine tumor necrosis factor-α were all stimulated.

纯绿青霉醇是从海洋真菌澳大利亚曲霉(Aspergillus austroafricanus)Y32-2的次级代谢产物中分离出来的一种喹啉酮类生物碱,分子式为C15H11NO3Pure green penicillol is a quinolinone alkaloid isolated from the secondary metabolites of the marine fungus Aspergillus austroafricanus (Aspergillus austroafricanus) Y32-2, with a molecular formula of C 15 H 11 NO 3 .

已有报道纯绿青霉醇对金黄色葡萄球菌具有很强的抗细菌活性,但是关于纯绿青霉醇对炎症性肠病的作用未见报道。It has been reported that pure viridinol has strong antibacterial activity against Staphylococcus aureus, but there is no report on the effect of pure viridinol on inflammatory bowel disease.

发明内容Contents of the invention

针对现有技术的不足,本发明提供了纯绿青霉醇在制备治疗炎症性肠病药物中的应用。Aiming at the deficiencies of the prior art, the present invention provides the application of pure viridinol in the preparation of medicines for treating inflammatory bowel disease.

本发明的技术方案如下:Technical scheme of the present invention is as follows:

纯绿青霉醇在制备治疗炎症性肠病药物中的应用,其中纯绿青霉醇的结构式如下:Application of pure virididillol in the preparation of medicines for treating inflammatory bowel disease, wherein the structural formula of pure virididillol is as follows:

Figure BDA0003982038410000021
Figure BDA0003982038410000021

根据本发明优选的,所述应用中,所述药物通过激活pparγ表达,调节MAPK和NF-κB信号通路,发挥治疗炎症性肠病的作用。Preferably according to the present invention, in the application, the drug can regulate MAPK and NF-κB signaling pathways by activating the expression of pparγ, so as to treat inflammatory bowel disease.

一种治疗炎症性肠病的药物,所述药物中含有纯绿青霉醇。A medicine for treating inflammatory bowel disease, which contains pure green penicillol.

根据本发明优选的,所述药物中含有药学上可接受的载体和或辅料。Preferably according to the present invention, the medicine contains pharmaceutically acceptable carriers and or auxiliary materials.

根据本发明优选的,所述药物的剂型为片剂、胶囊剂、颗粒剂、微丸剂、滴丸剂、口服液体剂、水针剂、粉针剂、输液剂、软膏剂、凝胶剂或微乳剂。Preferably according to the present invention, the dosage form of the drug is tablet, capsule, granule, pellet, drop pill, oral liquid, aqueous injection, powder injection, infusion, ointment, gel or microemulsion.

有益效果Beneficial effect

本发明首次发现纯绿青霉醇可以治疗炎症性肠病,增加了纯绿青霉醇的新用途,为治疗炎症性肠病提供了新的治疗手段,也为纯绿青霉醇的应用开发提供参考。The invention discovers for the first time that pure green penicillol can treat inflammatory bowel disease, increases the new use of pure green penicillol, provides a new treatment method for the treatment of inflammatory bowel disease, and also develops the application and development of pure green penicillol for reference.

附图说明Description of drawings

图1为纯绿青霉醇对TNBS诱导斑马鱼肠道炎症细胞迁移的影响示意图;Figure 1 is a schematic diagram of the effect of pure green penicillol on the migration of zebrafish intestinal inflammatory cells induced by TNBS;

图中:TNBS表示2,4,6-三硝基苯磺酸;红色框内为统计斑马鱼肠道炎症细胞数目的部位,右侧为肠道统计区域的放大图片。In the figure: TNBS represents 2,4,6-trinitrobenzenesulfonic acid; the red box is the part where the number of intestinal inflammatory cells in zebrafish is counted, and the right side is the enlarged picture of the intestinal statistical area.

图2为纯绿青霉醇对TNBS诱导斑马鱼肠道炎症细胞迁移数量的影响统计柱状图;Figure 2 is a statistical histogram of the effect of pure green penicillol on the migration of zebrafish intestinal inflammatory cells induced by TNBS;

图中:与空白对照组相比,##P<0.01;与TNBS造模组相比,*P<0.05,**P<0.01。In the figure: compared with blank control group, ## P<0.01; compared with TNBS modeling group, * P<0.05, ** P<0.01.

图3为纯绿青霉醇对炎症性肠病斑马鱼的肠道组织结构的影响示意图;Figure 3 is a schematic diagram of the influence of pure green penicillol on the intestinal tissue structure of inflammatory bowel disease zebrafish;

图中:黑色实箭头指示黏膜上皮坏死溶解,黑色虚线箭头指示肠道皱襞消失,肠道拍摄图片比例尺为50μm。In the figure: the black solid arrow indicates necrolysis of the mucosal epithelium, the black dotted arrow indicates the disappearance of intestinal folds, and the scale bar of the intestinal pictures is 50 μm.

图4为纯绿青霉醇对炎症性肠病斑马鱼的肠道超微结构的影响示意图;Figure 4 is a schematic diagram of the influence of pure green penicillol on the intestinal ultrastructure of inflammatory bowel disease zebrafish;

图中:黑色箭头指示肠道微绒毛状态;Mv表示微绒毛,Ec表示上皮细胞;肠道拍摄图片比例尺为20μm。In the figure: the black arrow indicates the state of intestinal microvilli; Mv indicates microvilli, and Ec indicates epithelial cells; the scale bar of the intestinal pictures is 20 μm.

图5纯绿青霉醇对炎症性肠病斑马鱼基因表达水平的影响示意图;Fig. 5 is a schematic diagram of the influence of pure green penicillol on the gene expression level of inflammatory bowel disease zebrafish;

图中:pparγ表示过氧化物酶体增殖物激活受体γ、zak表示一种蛋白激酶;hsp70.1表示热休克蛋白、ap-1表示激活蛋白-1、map3k8表示一种丝氨酸/苏氨酸激酶、ikbαa表示核转录因子抑制基因、nf-κb表示核转录因子、il8a表示一种炎症因子;与空白对照组相比,#P<0.05,##P<0.01;与TNBS造模组相比,*P<0.05,**P<0.01。In the figure: pparγ indicates peroxisome proliferator-activated receptor γ, zak indicates a protein kinase; hsp70.1 indicates heat shock protein, ap-1 indicates activator protein-1, map3k8 indicates a serine/threonine Kinase, ikbαa indicates nuclear transcription factor inhibitory gene, nf-κb indicates nuclear transcription factor, il8a indicates an inflammatory factor; compared with blank control group, # P<0.05, ## P<0.01; compared with TNBS modeling group , * P<0.05, ** P<0.01.

图6为纯绿青霉醇对LPS导致的全身感染性炎症的影响示意图;Fig. 6 is a schematic diagram of the influence of pure green penicillol on the systemic infectious inflammation caused by LPS;

图中:LPS表示脂多糖;图片为斑马鱼整体炎症细胞分布情况。In the figure: LPS means lipopolysaccharide; the picture shows the overall distribution of inflammatory cells in zebrafish.

图7为朝藿定B对CuSO4诱导斑马鱼急性神经性炎症的影响示意图;Figure 7 is a schematic diagram of the effect of Epimedin B on CuSO4- induced acute neuroinflammation in zebrafish;

图中:CuSO4表示硫酸铜;图片为斑马鱼炎症细胞迁移至神经丘周围(侧线部位)及其区域放大图片。In the figure: CuSO 4 represents copper sulfate; the picture shows the migration of zebrafish inflammatory cells around the neuromast (lateral line) and the enlarged picture of its area.

图8为朝藿定B对CuSO4诱导斑马鱼急性神经性炎症的抗炎作用柱状统计图;Figure 8 is a histogram of the anti-inflammatory effect of Epimedin B on CuSO4- induced acute neuroinflammation in zebrafish;

图中:CuSO4表示硫酸铜;与空白对照相比,###P<0.001;与CuSO4模型组相比,***P<0.001。In the figure: CuSO 4 represents copper sulfate; compared with blank control, ### P<0.001; compared with CuSO 4 model group, ***P<0.001.

图9为朝藿定B对断尾诱导斑马鱼局部炎症的影响示意图;Fig. 9 is a schematic diagram of the effect of Epimedin B on the local inflammation induced by tail docking in zebrafish;

图中:图片表示斑马鱼炎症细胞迁移至断尾部位及其区域放大图片。In the figure: The picture shows the migration of zebrafish inflammatory cells to the site of tail docking and the enlarged picture of the area.

图10为朝藿定B对断尾诱导的斑马鱼局部炎症的抗炎作用柱状统计图;Figure 10 is a histogram of the anti-inflammatory effect of Epimedin B on local inflammation in zebrafish induced by tail docking;

图中:与空白对照相比,###P<0.001;与断尾模型组相比,***P<0.001。In the figure: compared with the blank control group, ### P<0.001; compared with the docked model group, ***P<0.001.

图11为朝藿定B对斑马鱼肠道炎症细胞聚集迁移的影响示意图;Figure 11 is a schematic diagram of the effect of Epimedin B on the aggregation and migration of zebrafish intestinal inflammatory cells;

图中:TNBS表示2,4,6-三硝基苯磺酸;红色框内为统计斑马鱼肠道炎症细胞数目部位,右侧为肠道统计区域的放大图片。In the figure: TNBS represents 2,4,6-trinitrobenzenesulfonic acid; the red box is the part where the number of inflammatory cells in the intestinal tract of zebrafish is counted, and the right side is the enlarged picture of the statistical area of the intestinal tract.

图12为朝藿定B对TNBS诱导的斑马鱼肠道炎症细胞聚集迁移柱状统计图;图中:空白对照相比,###P<0.001;与TNBS模型组相比,***P<0.001。Figure 12 is a histogram of the aggregation and migration of zebrafish intestinal inflammatory cells induced by Epimedin B on TNBS; in the figure: compared with the blank control group, ### P<0.001; compared with the TNBS model group, ***P< 0.001.

具体实施方式Detailed ways

以下结合说明书附图和具体实施例对本发明作进一步的描述,但本发明的实施方式不限于此。The present invention will be further described below in conjunction with the accompanying drawings and specific examples, but the embodiments of the present invention are not limited thereto.

实施例中使用的药品及试剂,若无特殊说明,则为已上市普通产品,实施例中未详加说明的内容,均按本领域现有技术。The medicines and reagents used in the examples, unless otherwise specified, are common products on the market, and the contents not described in detail in the examples are all according to the prior art in the art.

主要材料来源main source of material

2,4,6-三硝基苯磺酸(TNBS)购于Sigma公司、电镜固定液购于武汉谷歌生物科技有限公司、812包埋剂购于SPI公司、斑马鱼幼鱼培养用水,浓度为0.4mM CaCl2,5mM NaCl,0.17mM KCl,0.16mM MgSO42,4,6-Trinitrobenzenesulfonic acid (TNBS) was purchased from Sigma Company, electron microscope fixative was purchased from Wuhan Google Biotechnology Co., Ltd., 812 embedding agent was purchased from SPI Company, and zebrafish juvenile culture water was purchased at a concentration of 0.4 mM CaCl 2 , 5 mM NaCl, 0.17 mM KCl, 0.16 mM MgSO 4 .

纯绿青霉醇:纯绿青霉醇购于TargetMol公司(生产批号:155521;纯度98%)。Pure green penicillol: pure green penicillol was purchased from TargetMol Company (production batch number: 155521; purity 98%).

朝藿定B:购自上海叶源生物科技有限公司(生产批号:J12HB184812;纯度≥98%)。Epimedin B: purchased from Shanghai Yeyuan Biotechnology Co., Ltd. (production batch number: J12HB184812; purity ≥ 98%).

脂多糖LPS:购自美国Sigma公司(生产批号:0000155411)。Lipopolysaccharide LPS: purchased from Sigma Company of the United States (production batch number: 0000155411).

实施例1Example 1

纯绿青霉醇对肠道炎症细胞聚集程度的影响Effect of pure green penicillol on the aggregation degree of intestinal inflammatory cells

以发育3dpf健康的炎症细胞被标记绿色荧光的转基因斑马鱼为试验动物,将其随机分成空白对照组(养鱼水)、模型组(TNBS)与不同浓度样品组(TNBS+30μg/mL纯绿青霉醇、TNBS+60μg/mL纯绿青霉醇、TNBS+90μg/mL纯绿青霉醇)。每组10尾仔鱼,同时设置2个重复孔。模型组与不同浓度样品组(未加入纯绿青霉醇)中分别同时添加终浓度为50μg/mL的2,4,6-三硝基苯磺酸(TNBS)。将上述各组斑马鱼均置于28.5℃的恒温培养箱中,避光条件下连续孵育2天。结束后清洗各组仔鱼,并将空白对照组与模型组斑马鱼分别置于新鲜培养水中,将不同浓度样品组斑马鱼置于含不同浓度待测样品的培养水中。将上述各组斑马鱼置于28.5℃的恒温培养箱中,继续作用1天。处理结束后,使用0.2%的间氨基苯甲酸乙酯甲磺酸盐麻醉斑马鱼,并在荧光显微镜下观察拍照。统计斑马鱼肠道部位显示绿色荧光的炎症细胞的数量。Using transgenic zebrafish with 3dpf healthy inflammatory cells marked with green fluorescence as experimental animals, they were randomly divided into blank control group (pisciculture water), model group (TNBS) and different concentration sample groups (TNBS+30μg/mL pure green Penicillol, TNBS+60 μg/mL pure chloridol, TNBS+90 μg/mL pure chloridol). There are 10 larvae in each group, and 2 replicate holes are set at the same time. 2,4,6-trinitrobenzenesulfonic acid (TNBS) with a final concentration of 50 μg/mL was added simultaneously to the model group and the sample group with different concentrations (without adding pure green penicillol). The above-mentioned groups of zebrafish were placed in a constant temperature incubator at 28.5°C and incubated continuously for 2 days under dark conditions. After the end, the larvae of each group were cleaned, and the blank control group and the model group zebrafish were placed in fresh culture water, respectively, and the zebrafish of different concentration sample groups were placed in culture water containing different concentrations of the samples to be tested. The above-mentioned groups of zebrafish were placed in a constant temperature incubator at 28.5°C, and continued to act for 1 day. After the treatment, the zebrafish were anesthetized with 0.2% ethyl m-aminobenzoate methanesulfonate, observed and photographed under a fluorescent microscope. The number of inflammatory cells showing green fluorescence in the zebrafish gut was counted.

斑马鱼肠道切片苏木素-伊红(H&E)染色:收集化合物处理后的斑马鱼,用4%多聚甲醛固定。严格按照病理实验检测程序对斑马鱼样本进行修剪、脱水、包埋、切片、染色、封片。在显微镜下观察肠道组织切片情况,对典型病变部位成像。Hematoxylin-eosin (H&E) staining of zebrafish intestinal sections: Zebrafish treated with compounds were collected and fixed with 4% paraformaldehyde. The zebrafish samples were trimmed, dehydrated, embedded, sliced, stained, and mounted in strict accordance with the pathological test procedures. Observe the section of intestinal tissue under a microscope and image the typical lesion.

斑马鱼肠道透射电镜检测:收集化合物处理后的斑马鱼,采用电镜固定液在4℃下固定2-4小时,然后用0.1M磷酸缓冲液PB(PH7.4)漂洗3次,每次15min。经固定、脱水、渗透、包埋、切片、染色获得目的切片。在透射电子显微镜下观察肠道组织,采集图像分析。Transmission electron microscope detection of zebrafish intestine: collect the zebrafish treated with the compound, fix with electron microscope fixative solution at 4°C for 2-4 hours, and then rinse with 0.1M phosphate buffer PB (PH7.4) for 3 times, each time for 15min . The target slices were obtained through fixation, dehydration, infiltration, embedding, sectioning, and staining. Intestinal tissue was observed under a transmission electron microscope, and images were collected for analysis.

PCR检测与炎症性肠病相关的关键基因表达:收集纯绿青霉醇处理后的斑马鱼组织(空白对照组、TNBS组、TNBS+90μg/mL纯绿青霉醇组),用FastPure Cell/Tissue TotalRNA Isolation Kit V2提取RNA。将每个样本RNA逆转录得到cDNA,利用BIO-RAD CFX96实时系统测定与炎症相关基因的表达量,分3个重复进行。QRT-PCR扩增反应条件为95℃预变性30s 1个循环后,每个循环变性95℃10s,退火60℃10s,共40个循环后,最后95℃15s,60℃60s,95℃15s 1个循环。结果分析时以β-actin为内参,对结果进行相对定量分析。目的基因以及内参基因的PCR引物由上海捷瑞生物工程有限公司合成、纯化,并经质量检测。相关引物基因序列见表1。The expression of key genes related to inflammatory bowel disease was detected by PCR: Zebrafish tissues treated with pure chloridol (blank control group, TNBS group, TNBS+90μg/mL pure chloridol group) were collected, and FastPure Cell/ Tissue TotalRNA Isolation Kit V2 for RNA extraction. The RNA of each sample was reverse-transcribed to obtain cDNA, and the expression levels of genes related to inflammation were measured using the BIO-RAD CFX96 real-time system, which was divided into three replicates. QRT-PCR amplification reaction conditions are 95°C pre-denaturation for 30s for 1 cycle, denaturation at 95°C for 10s in each cycle, annealing at 60°C for 10s, a total of 40 cycles, and finally 95°C for 15s, 60°C for 60s, and 95°C for 15s. cycles. When analyzing the results, β-actin was used as an internal reference, and the relative quantitative analysis was performed on the results. The PCR primers of the target gene and internal reference gene were synthesized and purified by Shanghai Jierui Bioengineering Co., Ltd., and passed the quality inspection. The gene sequences of relevant primers are listed in Table 1.

表1用于实时荧光定量PCR的基因扩增引物序列Table 1 Gene amplification primer sequences for real-time fluorescent quantitative PCR

Figure BDA0003982038410000051
Figure BDA0003982038410000051

实验结果:Experimental results:

(1)纯绿青霉醇对斑马鱼肠道炎症细胞聚集迁移的影响(1) Effect of pure green penicillol on aggregation and migration of intestinal inflammatory cells in zebrafish

利用TNBS诱导斑马鱼体内炎症细胞向肠道聚集,建立TNBS诱导的斑马鱼炎症性肠病模型。通过统计斑马鱼肠道部位炎症细胞数目来评价化合物对斑马鱼肠道炎症的抗炎活性。如图1、图2所示,与空白组相比,TNBS组斑马鱼迁移至肠道的炎症细胞数量显著增多。在纯绿青霉醇浓度为60、90μg/mL时,斑马鱼肠道炎症细胞数与模型组相比显著降低。The TNBS-induced inflammatory bowel disease model of zebrafish was established by using TNBS to induce the accumulation of inflammatory cells in the intestine of zebrafish. The anti-inflammatory activity of compounds on zebrafish intestinal inflammation was evaluated by counting the number of inflammatory cells in the zebrafish intestinal site. As shown in Figure 1 and Figure 2, compared with the blank group, the number of inflammatory cells migrating to the intestinal tract of zebrafish in the TNBS group was significantly increased. When the concentration of pure green penicillol was 60 and 90 μg/mL, the number of intestinal inflammatory cells in zebrafish decreased significantly compared with the model group.

(2)纯绿青霉醇对炎症性肠病斑马鱼肠道组织的影响(2) Effect of pure green penicillol on intestinal tissue of zebrafish with inflammatory bowel disease

将空白组、TNBS组、纯绿青霉醇(90μg/mL)组斑马鱼进行肠道切片苏木精-伊红(H&E)染色。实验结果表明,空白组斑马鱼肠组织黏膜层、肌层和浆膜层结构清晰,单层柱状上皮衬附于黏膜表面,呈高柱状,排列整齐,肠组织未见明显病理变化;TNBS组斑马鱼肠组织细胞排列稀疏,可见黏膜上皮坏死溶解(黑色实箭头),肠道皱襞消失(黑色箭头)。与TNBS组相比,纯绿青霉醇给药后斑马鱼肠组织皱襞恢复,细胞排列较为紧密,见图3。Hematoxylin-eosin (H&E) staining of intestinal sections of zebrafish in blank group, TNBS group, and pure viridin (90 μg/mL) group. The experimental results showed that the mucosal layer, muscular layer and serosal layer of the zebrafish intestinal tissue in the blank group had a clear structure, and a single layer of columnar epithelium was lined on the mucosal surface, which was tall columnar and neatly arranged, and no obvious pathological changes were seen in the intestinal tissue; The cells of fish intestinal tissue are sparsely arranged, the mucosal epithelium is necrotic and dissolved (black solid arrow), and intestinal folds disappear (black arrow). Compared with the TNBS group, the zebrafish intestinal tissue folds were restored after the administration of pure green penicillol, and the cells were arranged more tightly, as shown in Figure 3.

(3)纯绿青霉醇对炎症性肠病斑马鱼肠道超微结构的影响(3) Effects of pure green penicillol on the intestinal ultrastructure of zebrafish with inflammatory bowel disease

利用透射电镜技术,对各组斑马鱼肠道超微结构进行观察分析。空白组肠道细胞膜完整,细胞器丰富,微绒毛(Mv)排列整齐,粗细均一(箭头所示)。TNBS组肠道微绒毛分布不均匀,局部略显稀疏、紊乱(箭头所示)。纯绿青霉醇组图片所示肠道微绒毛恢复丰富状态(箭头所示),见图4。Using transmission electron microscopy, the ultrastructure of zebrafish intestines in each group was observed and analyzed. In the blank group, intestinal cell membranes were complete, organelles were abundant, and microvilli (Mv) were arranged neatly and uniform in thickness (arrows). In the TNBS group, the distribution of intestinal microvilli was uneven, and the local area was slightly sparse and disordered (indicated by the arrow). As shown in the pictures of the pure viridin group, the intestinal microvilli returned to a rich state (shown by the arrow), see Figure 4.

(4)纯绿青霉醇对炎症性肠病关键基因的影响(4) Effect of pure green penicillol on key genes of inflammatory bowel disease

PCR结果显示,与空白对照组相比,TNBS组斑马鱼中pparγ、zak的mRNA表达显著下降(P<0.01),hsp70.1、ap-1、map3k8、il8a、ikbαa、nf-κb的mRNA表达升高。与TNBS组相比,纯绿青霉醇治疗组斑马鱼的pparγ、zak的mRNA表达显著升高,hsp70.1、ap-1、map3k8、il8a、ikbαa、nf-κb的mRNA表达显著降低(P<0.01),见图5。The PCR results showed that compared with the blank control group, the mRNA expressions of pparγ and zak in the zebrafish of the TNBS group decreased significantly (P<0.01), and the mRNA expressions of hsp70.1, ap-1, map3k8, il8a, ikbαa, and nf-κb raised. Compared with the TNBS group, the mRNA expressions of pparγ and zak in the zebrafish treated with pure green penicillol were significantly increased, and the mRNA expressions of hsp70.1, ap-1, map3k8, il8a, ikbaαa, and nf-κb were significantly decreased (P <0.01), see Figure 5.

结果表明,利用TNBS造成斑马鱼肠道炎症,与空白组相比,TNBS组斑马鱼肠道炎症细胞数目显著增多,肠组织细胞排列稀疏,肠道皱襞消失,肠道微绒毛分布不均匀,局部略显稀疏、紊乱。化合物纯绿青霉醇能显著降低TNBS导致的斑马鱼肠道炎症细胞聚集,恢复肠道皱襞和肠道微绒毛,上调pparγ表达,调节MAPK和NF-κB信号通路,从而有效缓解了斑马鱼肠道炎症。The results showed that TNBS was used to cause intestinal inflammation in zebrafish. Compared with the blank group, the number of intestinal inflammatory cells in the TNBS group increased significantly, the arrangement of intestinal tissue cells was sparse, intestinal folds disappeared, and the distribution of intestinal microvilli was uneven. Slightly sparse and disordered. The compound pure green penicillol can significantly reduce the accumulation of inflammatory cells in the zebrafish intestine caused by TNBS, restore intestinal folds and intestinal microvilli, up-regulate the expression of pparγ, and regulate the MAPK and NF-κB signaling pathways, thereby effectively alleviating the zebrafish intestinal inflammation. tract inflammation.

实验例1Experimental example 1

纯绿青霉醇对内毒性(LPS)导致的全身感染性炎症无抗炎作用Pure green penicillol has no anti-inflammatory effect on systemic infectious inflammation caused by endotoxicity (LPS)

以发育3dpf健康的炎症细胞标记绿色荧光的转基因斑马鱼为试验动物,将其随机分成空白对照组(养鱼水)、LPS炎症模型组(LPS,25ug/mL)、不同浓度纯绿青霉醇处理组(LPS+30μg/mL纯绿青霉醇、LPS+60μg/mL纯绿青霉醇、LPS+90μg/mL纯绿青霉醇)。模型组与不同浓度纯绿青霉醇处理组(未加入纯绿青霉醇)中分别同时添加终浓度为25μg/mL的内毒性(LPS),每组10尾仔鱼,同时设置2个重复孔。将上述各组斑马鱼均置于28.5℃的恒温培养箱中,避光条件下连续孵育2天。结束后清洗各组仔鱼,并将空白对照组与模型组仔鱼分别置于新鲜培养水中,将不同浓度样品组仔鱼置于含不同浓度待测样品的培养水中。将上述各组斑马鱼置于28.5℃的恒温培养箱中,继续作用1天。处理结束后,使用0.2%的间氨基苯甲酸乙酯甲磺酸盐麻醉斑马鱼,并在荧光显微镜下观察每组斑马鱼炎症细胞聚集变化情况。统计分析斑马鱼机体炎症细胞的数量。Using transgenic zebrafish with 3dpf healthy inflammatory cells marked with green fluorescence as experimental animals, they were randomly divided into blank control group (pisciculture water), LPS inflammation model group (LPS, 25ug/mL), pure green penicillol with different concentrations Treatment groups (LPS+30 μg/mL pure chloridol, LPS+60 μg/mL pure chloridol, LPS+90 μg/mL pure viride). Endotoxicity (LPS) with a final concentration of 25 μg/mL was added to the model group and different concentrations of pure virididol treatment groups (without adding pure viridicillol), respectively, with 10 larvae in each group, and 2 replicate wells were set at the same time . The above-mentioned groups of zebrafish were placed in a constant temperature incubator at 28.5°C and incubated continuously for 2 days under dark conditions. After the end, the larvae of each group were cleaned, and the larvae of the blank control group and the model group were placed in fresh culture water respectively, and the larvae of the sample groups with different concentrations were placed in the culture water containing the samples to be tested at different concentrations. The above-mentioned groups of zebrafish were placed in a constant temperature incubator at 28.5°C, and continued to act for 1 day. After the treatment, the zebrafish were anesthetized with 0.2% ethyl m-aminobenzoate methanesulfonate, and the changes of inflammatory cell aggregation in each group of zebrafish were observed under a fluorescence microscope. Statistical analysis of the number of inflammatory cells in zebrafish body.

如图6所示,与对照组相比,LPS模型组斑马鱼机体炎症细胞数目明显增加。与模型组相比,纯绿青霉醇各浓度组斑马鱼机体炎症细胞数目无显著变化。表明纯绿青霉醇对LPS导致的全身感染性炎症无抗炎作用。As shown in Figure 6, compared with the control group, the number of inflammatory cells in the zebrafish body of the LPS model group increased significantly. Compared with the model group, there was no significant change in the number of inflammatory cells in the zebrafish body in each concentration group of pure green penicillol. It shows that pure green penicillol has no anti-inflammatory effect on systemic infectious inflammation caused by LPS.

由上述实验结果可以看出,由内毒性(LPS)导致的全身感染性炎症模型;与2,4,6-三硝基苯磺酸(TNBS)导致的炎症性肠病模型不同,纯绿青霉醇二者的抗炎作用没有关联性。It can be seen from the above experimental results that the systemic infectious inflammation model caused by endotoxicity (LPS) is different from the inflammatory bowel disease model caused by 2,4,6-trinitrobenzenesulfonic acid (TNBS), pure green green There was no correlation between the anti-inflammatory effects of the two mycodols.

实验例2Experimental example 2

朝藿定B对CuSO4导致的急性神经性炎症模型、断尾诱导的斑马鱼局部炎症有抗炎作用,但是对TNBS导致的炎症性肠病无效果Epimedin B has anti-inflammatory effects on the acute neuroinflammation model induced by CuSO 4 and local inflammation induced by tail docking in zebrafish, but has no effect on inflammatory bowel disease induced by TNBS

(1)朝藿定B对CuSO4诱导斑马鱼急性炎症的抗炎作用(1) Anti-inflammatory effect of Epimedin B on CuSO4 -induced acute inflammation in zebrafish

选用72hpf健康的炎症细胞被标记绿色荧光的转基因斑马鱼作为实验动物。设置空白对照组(养鱼水)、炎症模型组(CuSO4)、阳性对照组(CuSO4+布洛芬10μM)和朝藿定B组(CuSO4+朝藿定B 80、160、320μM)。每组10尾斑马鱼,同时设置2个复孔。斑马鱼在朝藿定B药液中暴露24h,24h后除空白对照组外,其他组均加CuSO4(40μM)在避光条件下暴露1h。在蔡司荧光显微镜下观察迁移到侧线的炎症细胞情况并拍照,统计迁移到侧线的炎症细胞数量。A transgenic zebrafish whose 72hpf healthy inflammatory cells were marked with green fluorescence was selected as the experimental animal. Set blank control group (pisciculture water), inflammation model group (CuSO 4 ), positive control group (CuSO 4 + ibuprofen 10 μM) and epimedin B group (CuSO 4 + epimedin B 80, 160, 320 μM) . There were 10 zebrafish in each group, and 2 replicate wells were set up at the same time. Zebrafish were exposed to Epimedin B solution for 24 hours, and after 24 hours, except the blank control group, the other groups were exposed to CuSO 4 (40 μM) for 1 hour under dark conditions. The inflammatory cells migrating to the lateral line were observed and photographed under a Zeiss fluorescence microscope, and the number of inflammatory cells migrating to the lateral line was counted.

(2)朝藿定B对断尾诱导斑马鱼局部炎症的抗炎作用(2) Anti-inflammatory effect of Epimedin B on local inflammation induced by tail docking in zebrafish

选用72hpf健康的炎症细胞被标记绿色荧光的转基因斑马鱼作为实验动物。设置空白对照组(未断尾斑马鱼+养鱼水)、断尾模型组(断尾斑马鱼+养鱼水)和朝藿定B组(断尾斑马鱼+朝藿定B的80、160、320μM)。空白对照为正常发育的斑马鱼,其他分组在显微镜下用手术刀在固定位置切去相同长度的尾部。将斑马鱼移入24孔板,每孔10条斑马鱼,设置两个复孔。断尾后的斑马鱼在朝藿定B药液中暴露6h后,在蔡司荧光显微镜下观察断尾处炎症细胞的聚集情况。A transgenic zebrafish whose 72hpf healthy inflammatory cells were marked with green fluorescence was selected as the experimental animal. Set blank control group (undocked zebrafish + fish water), docked model group (docked zebrafish + fish water) and epimedin B group (docked zebrafish + epimedin B 80, 160 , 320 μM). The blank control is the zebrafish with normal development, and the tails of the other groups are cut off with the same length of tail at a fixed position with a scalpel under the microscope. Move the zebrafish into a 24-well plate, with 10 zebrafish per well, and set up two replicate wells. After the tail-docked zebrafish were exposed to Epimedin B liquid for 6 hours, the accumulation of inflammatory cells at the docked tail was observed under a Zeiss fluorescence microscope.

(3)朝藿定B对TNBS诱导斑马鱼肠道炎症细胞聚集程度的影响(3) Effect of Epimedin B on the degree of inflammatory cell aggregation in zebrafish-induced intestinal tract induced by TNBS

以发育3dpf健康的炎症细胞被标记绿色荧光的转基因斑马鱼为试验动物,将其随机分成空白对照组(养鱼水)、模型组(TNBS)与不同浓度样品组(TNBS+80μM朝藿定B、TNBS+160μM朝藿定B、TNBS+320μM朝藿定B)。模型组与不同浓度样品组(未加入朝藿定B)中分别同时添加终浓度为50μg/mL的2,4,6-三硝基苯磺酸(TNBS),每组10尾仔鱼,同时设置2个重复孔。将上述各组斑马鱼均置于28.5℃的恒温培养箱中,避光条件下连续孵育2天。结束后清洗各组仔鱼,并将空白对照组与模型组仔鱼分别置于新鲜培养水中,将不同浓度样品组仔鱼置于含不同浓度待测样品的培养水中。将上述各组斑马鱼置于28.5℃的恒温培养箱中,继续作用1天。处理结束后,使用0.2%的间氨基苯甲酸乙酯甲磺酸盐麻醉斑马鱼,并在荧光显微镜下观察拍照。统计斑马鱼肠道部位显示绿色荧光的炎症细胞的数量。Using transgenic zebrafish with 3dpf healthy inflammatory cells marked with green fluorescence as experimental animals, they were randomly divided into blank control group (pisciculture water), model group (TNBS) and sample groups with different concentrations (TNBS+80μM Epimedin B , TNBS+160 μM Epimedin B, TNBS+320 μM Epimedin B). 2,4,6-trinitrobenzenesulfonic acid (TNBS) with a final concentration of 50 μg/mL was added to the model group and the sample group with different concentrations (without adding Epimedin B), respectively, with 10 larvae in each group. 2 duplicate wells. The above-mentioned groups of zebrafish were placed in a constant temperature incubator at 28.5°C and incubated continuously for 2 days under dark conditions. After the end, the larvae of each group were cleaned, and the larvae of the blank control group and the model group were placed in fresh culture water respectively, and the larvae of the sample groups with different concentrations were placed in the culture water containing the samples to be tested at different concentrations. The above-mentioned groups of zebrafish were placed in a constant temperature incubator at 28.5°C, and continued to act for 1 day. After the treatment, the zebrafish were anesthetized with 0.2% ethyl m-aminobenzoate methanesulfonate, observed and photographed under a fluorescent microscope. The number of inflammatory cells showing green fluorescence in the zebrafish gut was counted.

实验结果:Experimental results:

1.1朝藿定B对CuSO4诱导斑马鱼急性神经性炎症的抗炎作用1.1 Anti-inflammatory effect of Epimedin B on CuSO4 -induced acute neuroinflammation in zebrafish

如图7和图8所示,与空白对照组相比,CuSO4模型组斑马鱼迁移至侧线的炎症细胞数量显著增多,硫酸铜导致斑马鱼体内发生炎症反应。阳性药(布洛芬)组和朝藿定B给药组斑马鱼机体内迁移至侧线部位的炎症细胞数量,与硫酸铜模型组相比显著降低。随着朝藿定B给药浓度的增大,迁移至侧线的炎症细胞的数量也随之减少,当朝藿定B给药浓度为320μM时,迁移至侧线的炎症细胞数量降至炎症模型组的73.5%。说明朝藿定B对CuSO4诱导的斑马鱼急性神经性炎症有明显的抗炎作用。As shown in Figure 7 and Figure 8, compared with the blank control group, the number of inflammatory cells migrating to the lateral line in the CuSO 4 model group zebrafish was significantly increased, and copper sulfate caused an inflammatory response in the zebrafish. Compared with the copper sulfate model group, the number of inflammatory cells migrating to the lateral line in the zebrafish body of the positive drug (ibuprofen) group and the epihudine B administration group was significantly reduced. With the increase of the dose concentration of Epimedin B, the number of inflammatory cells migrating to the lateral line also decreased. 73.5%. It shows that Epimedin B has obvious anti-inflammatory effect on CuSO 4 -induced acute neuroinflammation in zebrafish.

1.2朝藿定B对断尾诱导斑马鱼局部炎症的抗炎作用1.2 Anti-inflammatory effect of Epimedin B on local inflammation induced by tail docking in zebrafish

如图9和图10所示,与空白对照组相比,断尾模型组的斑马鱼断尾部位炎症细胞的数量增多。与断尾模型组相比,随着朝藿定B剂量的升高,斑马鱼断尾部位的炎症细胞数目减少。说明朝藿定B对断尾诱导斑马鱼局部炎症有抗炎作用。As shown in Figure 9 and Figure 10, compared with the blank control group, the number of inflammatory cells in the docked tail of zebrafish in the docked model group increased. Compared with the docked tail model group, the number of inflammatory cells in the tail docked part of zebrafish decreased with the increase of the dose of epimedin B. It shows that Epimedin B has anti-inflammatory effect on the local inflammation induced by tail docking in zebrafish.

1.3朝藿定B对TNBS引起的炎症性肠病无抗炎作用1.3 Epimedin B has no anti-inflammatory effect on inflammatory bowel disease caused by TNBS

如图11和图12所示,与对照组相比,TNBS模型组斑马鱼肠道炎症细胞数目明显增加。与模型组相比,朝藿定B各浓度组斑马鱼肠道炎症细胞数目无显著变化。表明朝藿定B对TNBS导致的炎症性肠病无抗炎作用。As shown in Figure 11 and Figure 12, compared with the control group, the number of intestinal inflammatory cells in the TNBS model group increased significantly. Compared with the model group, there was no significant change in the number of inflammatory cells in the intestinal tract of zebrafish in each concentration group of Epimedin B. It shows that Epimedin B has no anti-inflammatory effect on inflammatory bowel disease caused by TNBS.

由上述实验结果可以看出,朝霍定B对CuSO4导致的炎症模型有抗炎作用,对断尾诱导的斑马鱼局部炎症有抗炎作用,但是对TNBS导致的炎症性肠病无效果。可以证明同一种药物对不同炎症模型的抗炎作用是没有关联的;进一步证明了CuSO4导致的神经性炎症模型和TNBS导致的炎症性肠病在机理和炎症效果上是有区别的,两者无关联性。From the above experimental results, it can be seen that chaohouding B has anti-inflammatory effect on the inflammatory model induced by CuSO 4 , and has anti-inflammatory effect on the local inflammation of zebrafish induced by tail docking, but has no effect on the inflammatory bowel disease induced by TNBS. It can be proved that the anti-inflammatory effect of the same drug on different inflammatory models is not related; it further proves that the neuroinflammatory model caused by CuSO 4 and the inflammatory bowel disease caused by TNBS are different in mechanism and inflammatory effect. No relevance.

本发明首次发现纯绿青霉醇可以治疗炎症性肠病,增加了纯绿青霉醇的新用途,为治疗炎症性肠病提供了新的治疗手段,也为纯绿青霉醇的应用开发提供参考。The invention discovers for the first time that pure green penicillol can treat inflammatory bowel disease, increases the new use of pure green penicillol, provides a new treatment method for the treatment of inflammatory bowel disease, and also develops the application and development of pure green penicillol for reference.

Claims (5)

1.纯绿青霉醇在制备治疗炎症性肠病药物中的应用,其中纯绿青霉醇的结构式如下:1. the application of pure viridillol in the preparation of medicine for the treatment of inflammatory bowel disease, wherein the structural formula of pure viridillol is as follows:
Figure FDA0003982038400000011
Figure FDA0003982038400000011
2.如权利要求1所述的应用,其特征在于,所述药物通过激活pparγ表达,调节MAPK和NF-κB信号通路,发挥治疗炎症性肠病的作用。2 . The application according to claim 1 , characterized in that the drug can treat inflammatory bowel disease by activating the expression of pparγ and regulating MAPK and NF-κB signaling pathways. 3.一种治疗炎症性肠病的药物,其特征在于,所述药物中含有纯绿青霉醇。3. A medicine for treating inflammatory bowel disease, characterized in that the medicine contains pure green penicillol. 4.如权利要求3所述的药物,其特征在于,所述药物中含有药学上可接受的载体和或辅料。4. The medicine according to claim 3, characterized in that the medicine contains pharmaceutically acceptable carriers and or auxiliary materials. 5.如权利要求3所述的药物,其特征在于,所述药物的剂型为片剂、胶囊剂、颗粒剂、微丸剂、滴丸剂、口服液体剂、水针剂、粉针剂、输液剂、软膏剂、凝胶剂或微乳剂。5. The medicine according to claim 3, wherein the dosage form of the medicine is tablet, capsule, granule, micropill, drop pill, oral liquid, water injection, powder injection, transfusion, ointment formulations, gels or microemulsions.
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