Circulation:单细胞RNA测序揭示心肌纤维化和肥大的驱动细胞

2020-10-16 星云 MedSci原创

心脏纤维化是多种类型的心脏功能障碍(包括心力衰竭)的关键前提。数十年前即已明确导致心脏纤维化的生理因素。但是,尚不清楚驱动心脏纤维化的特定细胞和分子以及不同细胞群体对心脏纤维化的相对影响。

心脏纤维化是多种类型的心脏功能障碍(包括心力衰竭)的关键前提。数十年前即已明确导致心脏纤维化的生理因素。但是,尚不清楚驱动心脏纤维化的特定细胞和分子以及不同细胞群体对心脏纤维化的相对影响。

近日,发表在《Circulation》上的“High-Resolution Transcriptomic Profiling of the Heart During Chronic Stress Reveals Cellular Drivers of Cardiac Fibrosis and Hypertrophy”研究,采用了一种新的心脏单细胞转录组技术来表征心脏纤维组织,即形成心脏的细胞网络。先是用血管紧张素II连续处理2周驱动病理性心肌重构,然后予以测序分析。

研究流程

本次分析提供了完整的心脏细胞分布图,揭示了多个参与促进心脏细胞外基质病理重塑的细胞群。

心脏中的细胞亚群

两个表型不同的成纤维细胞群,成纤维细胞-Cilp和成纤维细胞-Thbs4,在缺乏表达平滑肌肌动蛋白的成肌纤维细胞(一种重要的原纤维化细胞群)的情况下,可在组织应激诱导时出现以促进纤维化。

诱导纤维化后的心脏形态和分子变化

经过血管紧张素II处理后,成纤维细胞-Cilp成为最丰富的成纤维细胞亚群和主要的成纤维细胞类型。映射心脏内的细胞间通讯网络,确定了关键的细胞间营养关系和血管紧张素II治疗后促进纤维化的纤维化微环境发展的细胞通讯中的转移。此外,对血管紧张素II的细胞反应和成纤维细胞的相对丰度均是有性别特性的。

AngII处理慢性应激诱导下的成纤维细胞变化

该研究结果为探索健康和慢性心血管应激后心脏细胞整体情况提供了宝贵的资源。这些数据可促进哺乳动物心脏病理重构的细胞和分子机制的研究,强调了在慢性心脏纤维化之前的早期转录变化。

原始出处:

Micheal A. McLellan, et al. High-Resolution Transcriptomic Profiling of the Heart During Chronic Stress Reveals Cellular Drivers of Cardiac Fibrosis and Hypertrophy. Circulation. 2020;142:1448–1463

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    2021-03-18 okhuali
  2. [GetPortalCommentsPageByObjectIdResponse(id=2078052, encodeId=750d20e8052e2, content=<a href='/topic/show?id=8a8580960a5' target=_blank style='color:#2F92EE;'>#肌纤维#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=80960, encryptionId=8a8580960a5, topicName=肌纤维)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=ea6321, createdName=okhuali, createdTime=Thu Mar 18 21:30:27 CST 2021, time=2021-03-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=894791, encodeId=0b56894e9117, content=经过血管紧张素II处理后,成纤维细胞-Cilp成为最丰富的成纤维细胞亚群和主要的成纤维细胞类型。, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ae205385871, createdName=Lexi, createdTime=Tue Oct 27 11:00:05 CST 2020, time=2020-10-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=893336, encodeId=894d89333671, content=心脏纤维化是多种类型的心脏功能障碍(包括心力衰竭)的关键前提。数十年前即已明确导致心脏纤维化的生理因素。但是,尚不清楚驱动心脏纤维化的特定细胞和分子以及不同细胞群体对心脏纤维化的相对影响。, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b58d5402080, createdName=咻凡, createdTime=Tue Oct 20 16:58:18 CST 2020, time=2020-10-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1418921, encodeId=49221418921b4, content=<a href='/topic/show?id=abde36296f5' target=_blank style='color:#2F92EE;'>#单细胞RNA测序#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=36296, encryptionId=abde36296f5, topicName=单细胞RNA测序)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=eda53444564, createdName=wetgdt, createdTime=Sun Oct 18 06:30:27 CST 2020, time=2020-10-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1516818, encodeId=f7571516818ee, content=<a href='/topic/show?id=eb451556289' target=_blank style='color:#2F92EE;'>#RNA测序#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15562, encryptionId=eb451556289, topicName=RNA测序)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3b3411016716, createdName=ms24272190615788285182, createdTime=Sun Oct 18 06:30:27 CST 2020, time=2020-10-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=892579, encodeId=8c8e8925e9be, content=单细胞转录组测序最近有点火呀, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210725/69b5882b3c3845c19efa131b4ff8b1f7/06ccd8f1857e4e14862049ab235618eb.jpg, createdBy=74c72110107, createdName=Nebula-Qin, createdTime=Sat Oct 17 01:26:41 CST 2020, time=2020-10-17, status=1, ipAttribution=)]
    2020-10-27 Lexi

    经过血管紧张素II处理后,成纤维细胞-Cilp成为最丰富的成纤维细胞亚群和主要的成纤维细胞类型。

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=2078052, encodeId=750d20e8052e2, content=<a href='/topic/show?id=8a8580960a5' target=_blank style='color:#2F92EE;'>#肌纤维#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=80960, encryptionId=8a8580960a5, topicName=肌纤维)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=ea6321, createdName=okhuali, createdTime=Thu Mar 18 21:30:27 CST 2021, time=2021-03-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=894791, encodeId=0b56894e9117, content=经过血管紧张素II处理后,成纤维细胞-Cilp成为最丰富的成纤维细胞亚群和主要的成纤维细胞类型。, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ae205385871, createdName=Lexi, createdTime=Tue Oct 27 11:00:05 CST 2020, time=2020-10-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=893336, encodeId=894d89333671, content=心脏纤维化是多种类型的心脏功能障碍(包括心力衰竭)的关键前提。数十年前即已明确导致心脏纤维化的生理因素。但是,尚不清楚驱动心脏纤维化的特定细胞和分子以及不同细胞群体对心脏纤维化的相对影响。, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b58d5402080, createdName=咻凡, createdTime=Tue Oct 20 16:58:18 CST 2020, time=2020-10-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1418921, encodeId=49221418921b4, content=<a href='/topic/show?id=abde36296f5' target=_blank style='color:#2F92EE;'>#单细胞RNA测序#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=36296, encryptionId=abde36296f5, topicName=单细胞RNA测序)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=eda53444564, createdName=wetgdt, createdTime=Sun Oct 18 06:30:27 CST 2020, time=2020-10-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1516818, encodeId=f7571516818ee, content=<a href='/topic/show?id=eb451556289' target=_blank style='color:#2F92EE;'>#RNA测序#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15562, encryptionId=eb451556289, topicName=RNA测序)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3b3411016716, createdName=ms24272190615788285182, createdTime=Sun Oct 18 06:30:27 CST 2020, time=2020-10-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=892579, encodeId=8c8e8925e9be, content=单细胞转录组测序最近有点火呀, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210725/69b5882b3c3845c19efa131b4ff8b1f7/06ccd8f1857e4e14862049ab235618eb.jpg, createdBy=74c72110107, createdName=Nebula-Qin, createdTime=Sat Oct 17 01:26:41 CST 2020, time=2020-10-17, status=1, ipAttribution=)]
    2020-10-20 咻凡

    心脏纤维化是多种类型的心脏功能障碍(包括心力衰竭)的关键前提。数十年前即已明确导致心脏纤维化的生理因素。但是,尚不清楚驱动心脏纤维化的特定细胞和分子以及不同细胞群体对心脏纤维化的相对影响。

    0

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    2020-10-17 Nebula-Qin

    单细胞转录组测序最近有点火呀

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