Baidu
map

Blood:中性粒细胞外网状陷阱促进COVID-19急性呼窘患者形成免疫血栓

2020-07-08 MedSci原创 MedSci原创

新型NET抑制因子(nNIF)可阻断由COVID-19血浆诱导的NET,代表了对COVID-19的潜在治疗干预。

中心点:

COVID-19 ARDS中,中性粒细胞外网状陷阱(NETs)通过血小板-中性粒细胞相互作用导致微血栓形成。新型NET抑制因子(nNIF)可阻断由COVID-19血浆诱导的NET,代表了对COVID-19的潜在治疗干预。

摘要:

目前,全球COVID-19感染者已逾千万,临床表现多样,从单纯性血栓形成到需要呼吸机支持的急性呼吸窘迫综合征(ARDS)。中性粒细胞外网状陷阱(NETs)是由中性粒细胞坏死或者凋亡后染色体解旋消融形成一种特殊的结构,细胞质膜保持完整,可固定捕杀病原体,并可触发免疫血栓形成。

Middleton等开展了一项COVID-19患者(n=33)的回顾性队列研究,以年龄和性别匹配的非COVID-19患者(n=17)为对照,以研究NET和COVID-19严重程度和进展之间的相关性。

研究人员检测了血浆髓过氧化物酶 (MPO)-DNA复合物(NET)、血小板因子4、RANTES和部分细胞因子,并检测了3例COVID-19肺尸检的NET和血小板受累情况。研究人员还评估了COVID-19患者的中性粒细胞和与COVID-19血浆孵育的健康人的中性粒细胞的NET形成,同时还检测了新型NET抑制因子(nNIF)封闭COVID-19血浆诱导的NET形成的能力。

进行气管插管和死亡结局的COVID-19患者的血浆MPO-DNA复合物增多。疾病严重程度与血浆MPO-DNA复合物直接相关,而PaO2/FiO2与之负相关。在确认有包含微血栓的NET和中性粒-血小板浸润的肺活检COVID-19中,触发NET的可溶性细胞因子显著增加。最后,在体外起始时,COVID-19中性粒细胞形成过多的NET,COVID-19血浆触发的NET形成可被nNIF阻断。

综上,NET触发免疫血栓形成可能部分解释了COVID-19患者血栓形成前的临床表现,NETs可能作为治疗干预的靶点。

原始出处:

Elizabeth A Middleton,et al. Neutrophil Extracellular Traps (NETs) Contribute to Immunothrombosis in COVID-19 Acute Respiratory Distress Syndrome. Blood. June 29, 2020.

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 (4)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1949627, encodeId=0357194962ecc, content=<a href='/topic/show?id=0ca42916205' target=_blank style='color:#2F92EE;'>#免疫血栓#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=29162, encryptionId=0ca42916205, topicName=免疫血栓)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=28d456, createdName=yese, createdTime=Sun Oct 25 13:37:40 CST 2020, time=2020-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=803521, encodeId=7faf803521ef, content=视频, beContent=null, objectType=article, channel=null, level=null, likeNumber=121, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cdnapi.center.medsci.cn/medsci/head/2018/12/24/44b8702a305feef6e9b555c4dada4a75.jpg, createdBy=15402510012, createdName=gq1688888, createdTime=Mon Jul 20 20:01:28 CST 2020, time=2020-07-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1296740, encodeId=6f611296e40bd, content=<a href='/topic/show?id=29c82219e47' target=_blank style='color:#2F92EE;'>#中性粒细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=22197, encryptionId=29c82219e47, topicName=中性粒细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3883266, createdName=yykkxiaodou, createdTime=Fri Jul 10 08:37:40 CST 2020, time=2020-07-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=801840, encodeId=17cf80184013, content=共同战疫!, beContent=null, objectType=article, channel=null, level=null, likeNumber=100, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f31a1683103, createdName=曹译匀, createdTime=Thu Jul 09 13:06:44 CST 2020, time=2020-07-09, status=1, ipAttribution=)]
    2020-10-25 yese
  2. [GetPortalCommentsPageByObjectIdResponse(id=1949627, encodeId=0357194962ecc, content=<a href='/topic/show?id=0ca42916205' target=_blank style='color:#2F92EE;'>#免疫血栓#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=29162, encryptionId=0ca42916205, topicName=免疫血栓)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=28d456, createdName=yese, createdTime=Sun Oct 25 13:37:40 CST 2020, time=2020-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=803521, encodeId=7faf803521ef, content=视频, beContent=null, objectType=article, channel=null, level=null, likeNumber=121, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cdnapi.center.medsci.cn/medsci/head/2018/12/24/44b8702a305feef6e9b555c4dada4a75.jpg, createdBy=15402510012, createdName=gq1688888, createdTime=Mon Jul 20 20:01:28 CST 2020, time=2020-07-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1296740, encodeId=6f611296e40bd, content=<a href='/topic/show?id=29c82219e47' target=_blank style='color:#2F92EE;'>#中性粒细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=22197, encryptionId=29c82219e47, topicName=中性粒细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3883266, createdName=yykkxiaodou, createdTime=Fri Jul 10 08:37:40 CST 2020, time=2020-07-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=801840, encodeId=17cf80184013, content=共同战疫!, beContent=null, objectType=article, channel=null, level=null, likeNumber=100, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f31a1683103, createdName=曹译匀, createdTime=Thu Jul 09 13:06:44 CST 2020, time=2020-07-09, status=1, ipAttribution=)]
    2020-07-20 gq1688888

    视频

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=1949627, encodeId=0357194962ecc, content=<a href='/topic/show?id=0ca42916205' target=_blank style='color:#2F92EE;'>#免疫血栓#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=29162, encryptionId=0ca42916205, topicName=免疫血栓)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=28d456, createdName=yese, createdTime=Sun Oct 25 13:37:40 CST 2020, time=2020-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=803521, encodeId=7faf803521ef, content=视频, beContent=null, objectType=article, channel=null, level=null, likeNumber=121, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cdnapi.center.medsci.cn/medsci/head/2018/12/24/44b8702a305feef6e9b555c4dada4a75.jpg, createdBy=15402510012, createdName=gq1688888, createdTime=Mon Jul 20 20:01:28 CST 2020, time=2020-07-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1296740, encodeId=6f611296e40bd, content=<a href='/topic/show?id=29c82219e47' target=_blank style='color:#2F92EE;'>#中性粒细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=22197, encryptionId=29c82219e47, topicName=中性粒细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3883266, createdName=yykkxiaodou, createdTime=Fri Jul 10 08:37:40 CST 2020, time=2020-07-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=801840, encodeId=17cf80184013, content=共同战疫!, beContent=null, objectType=article, channel=null, level=null, likeNumber=100, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f31a1683103, createdName=曹译匀, createdTime=Thu Jul 09 13:06:44 CST 2020, time=2020-07-09, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1949627, encodeId=0357194962ecc, content=<a href='/topic/show?id=0ca42916205' target=_blank style='color:#2F92EE;'>#免疫血栓#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=29162, encryptionId=0ca42916205, topicName=免疫血栓)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=28d456, createdName=yese, createdTime=Sun Oct 25 13:37:40 CST 2020, time=2020-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=803521, encodeId=7faf803521ef, content=视频, beContent=null, objectType=article, channel=null, level=null, likeNumber=121, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cdnapi.center.medsci.cn/medsci/head/2018/12/24/44b8702a305feef6e9b555c4dada4a75.jpg, createdBy=15402510012, createdName=gq1688888, createdTime=Mon Jul 20 20:01:28 CST 2020, time=2020-07-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1296740, encodeId=6f611296e40bd, content=<a href='/topic/show?id=29c82219e47' target=_blank style='color:#2F92EE;'>#中性粒细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=22197, encryptionId=29c82219e47, topicName=中性粒细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3883266, createdName=yykkxiaodou, createdTime=Fri Jul 10 08:37:40 CST 2020, time=2020-07-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=801840, encodeId=17cf80184013, content=共同战疫!, beContent=null, objectType=article, channel=null, level=null, likeNumber=100, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f31a1683103, createdName=曹译匀, createdTime=Thu Jul 09 13:06:44 CST 2020, time=2020-07-09, status=1, ipAttribution=)]
    2020-07-09 曹译匀

    共同战疫!

    0

相关资讯

Moderna的新冠病毒候选疫苗mRNA-1273,获得FDA批准进行II期临床研究

Moderna公司宣布,FDA已经批准其实验性COVID-19疫苗mRNA-1273开展II期临床研究。

瑞德西韦治疗重症住院COVID-19患者III期临床数据公开

4月29日,吉利德公布了瑞德西韦治疗COVID-19重症住院患者的III期SIMPLE研究结果。结果显示,

OCC 2020丨羟氯喹在免疫性疾病相关性肺动脉高压中的作用及在新冠肺炎中的价值

5月29日,第十四届东方心脏病学会议(OCC2020)上,李梦涛教授就“SLE-PAH基础病的治疗选择”和“羟氯喹在免疫性疾病相关性肺动脉高压中的作用及在新冠肺炎中的价值”的主题与各位专家进行了分享.

Lancet oncol:胸部恶性肿瘤感染COVID-19后的死亡率

对感染COVID-19的癌症患者的早期报道提示,与一般人群相比,癌症患者感染COVID-19后的死亡率较高。考虑到胸部恶性肿瘤患者的年龄较大、吸烟习惯和合并的心肺疾病,以及癌症治疗,这类患者可能特别容

Blood:COVID-19感染患者的血小板基因表达和功能的改变

SARS-CoV-2诱导血小板基因表达和功能发生明显改变;血小板高反应性可能通过增加血小板-血小板和血小板-白细胞相互作用来促进COVID-19的病理生理。

2-脱氧-D-葡萄糖(2-DG):在体外可100%抑制新冠病毒复制

Moleculin Biotech公司研究发现2-脱氧-D-葡萄糖(2-DG)可在体外实验中将SARS-CoV-2(引起COVID-19的新冠病毒)的复制减少100%。

Baidu
map
Baidu
map
Baidu
map