Baidu
map

J Hepatol:在肝纤维化过程中,P2X4可调节肌成纤维细胞激活

2018-09-23 MedSci MedSci原创

P2X4的表达和激活对于hMF来说是至关重要的,以维持它们的活性和纤维原性表型。在肝纤维化疾病中,抑制P2X4的激活可能是抗纤维化的潜在靶点。

研究背景和目的:肝纤维化以细胞外基质沉积为特征,肌成纤维细胞的激活在肝纤维化过程中,发挥着重要的作用。在肝脏受损后,细胞外ATP和它的嘌呤受体组成了强大的信号网络。虽然,肝脏高度表达嘌呤受体—P2X4 (P2RX4),但是在肝纤维化发生过程中,仍然不了解P2RX4在肝脏肌成纤维细胞 (hMF)中的作用。

研究方法:在野生型和P2x4型(P2x4-ko)基因敲除小鼠体内进行胆道结扎术,和饲喂甲氧基和胆碱缺乏的饮食。从小鼠 (野生型和 P2x4-KO基因敲除) 和人类的肝脏,分离肝脏肌成纤维细胞。采用P2X4药物抑制剂 (体外和体内)和P2X4 jsiRNAs (在体内)抑制P2X4活性。利用组织学、生物化学和细胞培养技术分析P2X4表达以及其在促纤维化和纤溶过程中发挥的作用以及在hMF激活中的作用。

研究结果:在胆管结扎或甲硫氨酸和胆碱缺乏等诱导的模型中,P2X4基因沉默或P2X4药物抑制能够降低小鼠肝纤维化程度和hMF的累积。人和小鼠hMFs表达P2X4,尤其在溶酶体中高表达。在人类和小鼠的hMFs中,P2X4的失效阻碍了hMFs激活和使得hMFs促纤维性属性减弱。研究证明P2X4调节hMF中钙进入和溶酶体胞外分泌,影响ATP释放,促纤维化因子分泌和转录因子激活。

研究结论:P2X4的表达和激活对于hMF来说是至关重要的,以维持它们的活性和纤维原性表型。在肝纤维化疾病中,抑制P2X4的激活可能是抗纤维化的潜在靶点。

原始出处

Le Guilcher C, Garcin I, Dellis O, et al. The P2X4 purinergic receptor regulates hepatic myofibroblast activation during liver fibrogenesis. J Hepatol, 2018, 69(3), 644-653.

本文系梅斯医学(MedSci)原创编译整理,转载需授权!

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1808224, encodeId=50dd18082245b, content=<a href='/topic/show?id=f94d81342e5' target=_blank style='color:#2F92EE;'>#肝纤维#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81342, encryptionId=f94d81342e5, topicName=肝纤维)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8942242, createdName=jj000001, createdTime=Mon Dec 31 11:05:00 CST 2018, time=2018-12-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2037293, encodeId=a067203e29368, content=<a href='/topic/show?id=933f80922f5' target=_blank style='color:#2F92EE;'>#肌成纤维细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=80922, encryptionId=933f80922f5, topicName=肌成纤维细胞)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/4v5DMqK7WnzoBdibNsryQ8OEM5gFSdRH9j3HNCKPfKXlObInweOSHdQPATeTicYp7nvg3bsgicjLgRkdlhrpry21w/132, createdBy=6bf82500013, createdName=ms5822920152752585, createdTime=Thu Apr 18 15:05:00 CST 2019, time=2019-04-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1307102, encodeId=5e23130e10263, content=<a href='/topic/show?id=6dab540565f' target=_blank style='color:#2F92EE;'>#成纤维细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54056, encryptionId=6dab540565f, topicName=成纤维细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5d70341, createdName=zhishijing, createdTime=Tue Sep 25 08:05:00 CST 2018, time=2018-09-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1427239, encodeId=323f142e239e4, content=<a href='/topic/show?id=221d685172' target=_blank style='color:#2F92EE;'>#EPA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=6851, encryptionId=221d685172, topicName=EPA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=4a9b4077760, createdName=gwc384, createdTime=Tue Sep 25 08:05:00 CST 2018, time=2018-09-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1462785, encodeId=afd41462e85da, content=<a href='/topic/show?id=fbbce726228' target=_blank style='color:#2F92EE;'>#纤维细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77262, encryptionId=fbbce726228, topicName=纤维细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=6c516518840, createdName=marongnuan, createdTime=Tue Sep 25 08:05:00 CST 2018, time=2018-09-25, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1808224, encodeId=50dd18082245b, content=<a href='/topic/show?id=f94d81342e5' target=_blank style='color:#2F92EE;'>#肝纤维#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81342, encryptionId=f94d81342e5, topicName=肝纤维)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8942242, createdName=jj000001, createdTime=Mon Dec 31 11:05:00 CST 2018, time=2018-12-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2037293, encodeId=a067203e29368, content=<a href='/topic/show?id=933f80922f5' target=_blank style='color:#2F92EE;'>#肌成纤维细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=80922, encryptionId=933f80922f5, topicName=肌成纤维细胞)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/4v5DMqK7WnzoBdibNsryQ8OEM5gFSdRH9j3HNCKPfKXlObInweOSHdQPATeTicYp7nvg3bsgicjLgRkdlhrpry21w/132, createdBy=6bf82500013, createdName=ms5822920152752585, createdTime=Thu Apr 18 15:05:00 CST 2019, time=2019-04-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1307102, encodeId=5e23130e10263, content=<a href='/topic/show?id=6dab540565f' target=_blank style='color:#2F92EE;'>#成纤维细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54056, encryptionId=6dab540565f, topicName=成纤维细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5d70341, createdName=zhishijing, createdTime=Tue Sep 25 08:05:00 CST 2018, time=2018-09-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1427239, encodeId=323f142e239e4, content=<a href='/topic/show?id=221d685172' target=_blank style='color:#2F92EE;'>#EPA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=6851, encryptionId=221d685172, topicName=EPA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=4a9b4077760, createdName=gwc384, createdTime=Tue Sep 25 08:05:00 CST 2018, time=2018-09-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1462785, encodeId=afd41462e85da, content=<a href='/topic/show?id=fbbce726228' target=_blank style='color:#2F92EE;'>#纤维细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77262, encryptionId=fbbce726228, topicName=纤维细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=6c516518840, createdName=marongnuan, createdTime=Tue Sep 25 08:05:00 CST 2018, time=2018-09-25, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1808224, encodeId=50dd18082245b, content=<a href='/topic/show?id=f94d81342e5' target=_blank style='color:#2F92EE;'>#肝纤维#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81342, encryptionId=f94d81342e5, topicName=肝纤维)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8942242, createdName=jj000001, createdTime=Mon Dec 31 11:05:00 CST 2018, time=2018-12-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2037293, encodeId=a067203e29368, content=<a href='/topic/show?id=933f80922f5' target=_blank style='color:#2F92EE;'>#肌成纤维细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=80922, encryptionId=933f80922f5, topicName=肌成纤维细胞)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/4v5DMqK7WnzoBdibNsryQ8OEM5gFSdRH9j3HNCKPfKXlObInweOSHdQPATeTicYp7nvg3bsgicjLgRkdlhrpry21w/132, createdBy=6bf82500013, createdName=ms5822920152752585, createdTime=Thu Apr 18 15:05:00 CST 2019, time=2019-04-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1307102, encodeId=5e23130e10263, content=<a href='/topic/show?id=6dab540565f' target=_blank style='color:#2F92EE;'>#成纤维细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54056, encryptionId=6dab540565f, topicName=成纤维细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5d70341, createdName=zhishijing, createdTime=Tue Sep 25 08:05:00 CST 2018, time=2018-09-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1427239, encodeId=323f142e239e4, content=<a href='/topic/show?id=221d685172' target=_blank style='color:#2F92EE;'>#EPA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=6851, encryptionId=221d685172, topicName=EPA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=4a9b4077760, createdName=gwc384, createdTime=Tue Sep 25 08:05:00 CST 2018, time=2018-09-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1462785, encodeId=afd41462e85da, content=<a href='/topic/show?id=fbbce726228' target=_blank style='color:#2F92EE;'>#纤维细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77262, encryptionId=fbbce726228, topicName=纤维细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=6c516518840, createdName=marongnuan, createdTime=Tue Sep 25 08:05:00 CST 2018, time=2018-09-25, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1808224, encodeId=50dd18082245b, content=<a href='/topic/show?id=f94d81342e5' target=_blank style='color:#2F92EE;'>#肝纤维#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81342, encryptionId=f94d81342e5, topicName=肝纤维)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8942242, createdName=jj000001, createdTime=Mon Dec 31 11:05:00 CST 2018, time=2018-12-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2037293, encodeId=a067203e29368, content=<a href='/topic/show?id=933f80922f5' target=_blank style='color:#2F92EE;'>#肌成纤维细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=80922, encryptionId=933f80922f5, topicName=肌成纤维细胞)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/4v5DMqK7WnzoBdibNsryQ8OEM5gFSdRH9j3HNCKPfKXlObInweOSHdQPATeTicYp7nvg3bsgicjLgRkdlhrpry21w/132, createdBy=6bf82500013, createdName=ms5822920152752585, createdTime=Thu Apr 18 15:05:00 CST 2019, time=2019-04-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1307102, encodeId=5e23130e10263, content=<a href='/topic/show?id=6dab540565f' target=_blank style='color:#2F92EE;'>#成纤维细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54056, encryptionId=6dab540565f, topicName=成纤维细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5d70341, createdName=zhishijing, createdTime=Tue Sep 25 08:05:00 CST 2018, time=2018-09-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1427239, encodeId=323f142e239e4, content=<a href='/topic/show?id=221d685172' target=_blank style='color:#2F92EE;'>#EPA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=6851, encryptionId=221d685172, topicName=EPA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=4a9b4077760, createdName=gwc384, createdTime=Tue Sep 25 08:05:00 CST 2018, time=2018-09-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1462785, encodeId=afd41462e85da, content=<a href='/topic/show?id=fbbce726228' target=_blank style='color:#2F92EE;'>#纤维细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77262, encryptionId=fbbce726228, topicName=纤维细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=6c516518840, createdName=marongnuan, createdTime=Tue Sep 25 08:05:00 CST 2018, time=2018-09-25, status=1, ipAttribution=)]
    2018-09-25 gwc384
  5. [GetPortalCommentsPageByObjectIdResponse(id=1808224, encodeId=50dd18082245b, content=<a href='/topic/show?id=f94d81342e5' target=_blank style='color:#2F92EE;'>#肝纤维#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81342, encryptionId=f94d81342e5, topicName=肝纤维)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8942242, createdName=jj000001, createdTime=Mon Dec 31 11:05:00 CST 2018, time=2018-12-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2037293, encodeId=a067203e29368, content=<a href='/topic/show?id=933f80922f5' target=_blank style='color:#2F92EE;'>#肌成纤维细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=80922, encryptionId=933f80922f5, topicName=肌成纤维细胞)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/4v5DMqK7WnzoBdibNsryQ8OEM5gFSdRH9j3HNCKPfKXlObInweOSHdQPATeTicYp7nvg3bsgicjLgRkdlhrpry21w/132, createdBy=6bf82500013, createdName=ms5822920152752585, createdTime=Thu Apr 18 15:05:00 CST 2019, time=2019-04-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1307102, encodeId=5e23130e10263, content=<a href='/topic/show?id=6dab540565f' target=_blank style='color:#2F92EE;'>#成纤维细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54056, encryptionId=6dab540565f, topicName=成纤维细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5d70341, createdName=zhishijing, createdTime=Tue Sep 25 08:05:00 CST 2018, time=2018-09-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1427239, encodeId=323f142e239e4, content=<a href='/topic/show?id=221d685172' target=_blank style='color:#2F92EE;'>#EPA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=6851, encryptionId=221d685172, topicName=EPA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=4a9b4077760, createdName=gwc384, createdTime=Tue Sep 25 08:05:00 CST 2018, time=2018-09-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1462785, encodeId=afd41462e85da, content=<a href='/topic/show?id=fbbce726228' target=_blank style='color:#2F92EE;'>#纤维细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77262, encryptionId=fbbce726228, topicName=纤维细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=6c516518840, createdName=marongnuan, createdTime=Tue Sep 25 08:05:00 CST 2018, time=2018-09-25, status=1, ipAttribution=)]

相关资讯

J Hepatol:非硬化群体中患有α-1抗胰蛋白酶缺乏症的成人的临床和组织学特征

超过三分之一的无症状和肺部感染的成年人患有“PI ZZ”AATD,其存在显著性肝纤维化。肝脏活组织检查表明,肝组织存在不同水平的累积的α--1抗胰蛋白酶。基线时肝纤维化风险增加与肝细胞内异常累积的α--1抗胰蛋白酶、门静脉炎相关。

Hepatology:miRNA- seq鉴定了一个血清miRNA,结合APRI可以检测和监测存在囊性纤维化中的儿童肝病

本研究在儿科CFLD中发现了一种独特的循环miRNA,它有可能准确鉴别儿童CF患者的肝脏疾病和纤维化严重程度。

Hepatology:肝星状细胞来源的血小板衍生生长因子受体α-丰富的细胞外小泡通过SHP2促进小鼠肝纤维化

采用PDGF-BB刺激肝星状细胞,肝星状细胞来源的血小板衍生生长因子受体α-丰富的细胞外小泡通过SHP2促进小鼠肝纤维化。

Eur J Gastroenterol Hepatol:TIMP-1的血清水平被认为是能够区分NAFLD是否患有肝纤维化的**标志

TIMP-1的血清水平被认为是能够区分NAFLD是否患有肝纤维化的唯一标志。

J Gastroenterol Hepatol:包含核心启动子(BCP) A1762T突变的预测肝纤维化的新指标

本研究利用核心启动子A1762T数据建立了一个无转氨酶指标的纤维化评分(ABPI)系统,其诊断效果优于APRI和FIB-4。

J Hepatol:巨噬细胞促进小鼠硬化性胆管炎发展

浸润的巨噬细胞是PSC和急性和慢性SC小鼠模型的一个特征。肝胆巨噬细胞的药理和遗传抑制可减少小鼠肝损伤和纤维化。

Baidu
map
Baidu
map
Baidu
map