Baidu
map

呼吸

订阅

MedSci主页 / 所有栏目 / 呼吸

Thorax：内源性线粒体甲酰肽在急性呼吸窘迫综合征中的作用！

2017-05-04 xing.T MedSci原创

线粒体甲酰肽ARDS
关注

该研究首次提供了确凿的证据表明线粒体甲酰肽在人类疾病中发挥作用，并且证实了它在ARDS患者表达有所增加，以及在肺损伤的小鼠模型中发挥重要作用。这项工作揭示了线粒体甲酰肽FPR1信号作为无菌性急性肺损伤的关键驱动因素，并且可以作为ARDS的潜在治疗靶点。

急性呼吸窘迫综合征（ARDS）是一种致命的中性粒细胞占主导的肺部疾病。虽然受多种炎症介质的影响，确定识别合适的治疗候选分子仍不明确。近日，胸部疾病领域权威杂志Thorax上发表了一篇研究文章，研究人员旨在明确线粒体甲酰肽是否存在于急性呼吸窘迫综合征的患者中，并明确甲酰肽受体1（FPR1）信号在无菌性炎症中的重要功能。

研究人员采用液相色谱串联质谱的方法来确定ARDS患者支气管肺泡灌洗液（BALF）和血清中有无线粒体甲酰肽的存在。在体外培养实验中，研究人员采用线粒体甲酰肽刺激人中性粒细胞，以及采用流式细胞仪和趋化试验来评估其效应。研究人员采用线粒体甲酰肽或盐酸诱导小鼠肺损伤，采用骨髓嵌合体来明确骨髓和实质的FPR1对肺部无菌性炎症的作用。

研究人员发现ARDS患者BALF和血清中线粒体甲酰肽水平升高，在体外和体内实验中，这些肽可以通过FPR1依赖机制驱动中性粒细胞激活以及趋化性。在小鼠肺损伤中，FPR1-/-小鼠的炎症反应减弱。FPR1表达在肺泡上皮和嵌合体小鼠中，表明骨髓和实质FPR1均可以促进肺部炎症。

该研究首次提供了确凿的证据表明线粒体甲酰肽在人类疾病中发挥作用，并且证实了它在ARDS患者表达有所增加，以及在肺损伤的小鼠模型中发挥重要作用。这项工作揭示了线粒体甲酰肽FPR1信号作为无菌性急性肺损伤的关键驱动因素，并且可以作为ARDS的潜在治疗靶点。

原始出处：

David A Dorward, et al.Novel role for endogenous mitochondrial formylated peptide-driven formyl peptide receptor 1 signalling in acute respiratory distress syndrome.Thorax. 2017. http://dx.doi.org/10.1136/thoraxjnl-2017-210030

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 (4)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1682020, encodeId=c36a16820204d, content=<a href='/topic/show?id=15593040e9a' target=_blank style='color:#2F92EE;'>#内源性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=30407, encryptionId=15593040e9a, topicName=内源性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b46b27929604, createdName=diushouji, createdTime=Thu Mar 15 09:47:00 CST 2018, time=2018-03-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1430807, encodeId=fbde143080e74, content=<a href='/topic/show?id=f9b9e9124a8' target=_blank style='color:#2F92EE;'>#综合征#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79124, encryptionId=f9b9e9124a8, topicName=综合征)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Sat May 06 05:47:00 CST 2017, time=2017-05-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1582220, encodeId=56f315822204c, content=<a href='/topic/show?id=e46f396832b' target=_blank style='color:#2F92EE;'>#呼吸窘迫#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=39683, encryptionId=e46f396832b, topicName=呼吸窘迫)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=22be16898890, createdName=12498cf9m40(暂无昵称), createdTime=Sat May 06 05:47:00 CST 2017, time=2017-05-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=193865, encodeId=7a56193865f0, content=学习了谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLK1wzJZRTON4gxYUibhUyOypBwMibC4R7SsppicGhz5Ogoy0VVq4CWnqaD2Moeib8RWxI5lOiaVmnxpan/0, createdBy=c53f1730331, createdName=tanxingdoctor, createdTime=Fri May 05 00:06:26 CST 2017, time=2017-05-05, status=1, ipAttribution=)]
    2018-03-15 diushouji

    #内源性#

    0

  2. [GetPortalCommentsPageByObjectIdResponse(id=1682020, encodeId=c36a16820204d, content=<a href='/topic/show?id=15593040e9a' target=_blank style='color:#2F92EE;'>#内源性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=30407, encryptionId=15593040e9a, topicName=内源性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b46b27929604, createdName=diushouji, createdTime=Thu Mar 15 09:47:00 CST 2018, time=2018-03-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1430807, encodeId=fbde143080e74, content=<a href='/topic/show?id=f9b9e9124a8' target=_blank style='color:#2F92EE;'>#综合征#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79124, encryptionId=f9b9e9124a8, topicName=综合征)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Sat May 06 05:47:00 CST 2017, time=2017-05-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1582220, encodeId=56f315822204c, content=<a href='/topic/show?id=e46f396832b' target=_blank style='color:#2F92EE;'>#呼吸窘迫#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=39683, encryptionId=e46f396832b, topicName=呼吸窘迫)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=22be16898890, createdName=12498cf9m40(暂无昵称), createdTime=Sat May 06 05:47:00 CST 2017, time=2017-05-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=193865, encodeId=7a56193865f0, content=学习了谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLK1wzJZRTON4gxYUibhUyOypBwMibC4R7SsppicGhz5Ogoy0VVq4CWnqaD2Moeib8RWxI5lOiaVmnxpan/0, createdBy=c53f1730331, createdName=tanxingdoctor, createdTime=Fri May 05 00:06:26 CST 2017, time=2017-05-05, status=1, ipAttribution=)]
    2017-05-06 zhouqu_8

    #综合征#

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=1682020, encodeId=c36a16820204d, content=<a href='/topic/show?id=15593040e9a' target=_blank style='color:#2F92EE;'>#内源性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=30407, encryptionId=15593040e9a, topicName=内源性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b46b27929604, createdName=diushouji, createdTime=Thu Mar 15 09:47:00 CST 2018, time=2018-03-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1430807, encodeId=fbde143080e74, content=<a href='/topic/show?id=f9b9e9124a8' target=_blank style='color:#2F92EE;'>#综合征#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79124, encryptionId=f9b9e9124a8, topicName=综合征)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Sat May 06 05:47:00 CST 2017, time=2017-05-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1582220, encodeId=56f315822204c, content=<a href='/topic/show?id=e46f396832b' target=_blank style='color:#2F92EE;'>#呼吸窘迫#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=39683, encryptionId=e46f396832b, topicName=呼吸窘迫)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=22be16898890, createdName=12498cf9m40(暂无昵称), createdTime=Sat May 06 05:47:00 CST 2017, time=2017-05-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=193865, encodeId=7a56193865f0, content=学习了谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLK1wzJZRTON4gxYUibhUyOypBwMibC4R7SsppicGhz5Ogoy0VVq4CWnqaD2Moeib8RWxI5lOiaVmnxpan/0, createdBy=c53f1730331, createdName=tanxingdoctor, createdTime=Fri May 05 00:06:26 CST 2017, time=2017-05-05, status=1, ipAttribution=)]
    2017-05-06 12498cf9m40(暂无昵称)

    #呼吸窘迫#

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=1682020, encodeId=c36a16820204d, content=<a href='/topic/show?id=15593040e9a' target=_blank style='color:#2F92EE;'>#内源性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=30407, encryptionId=15593040e9a, topicName=内源性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b46b27929604, createdName=diushouji, createdTime=Thu Mar 15 09:47:00 CST 2018, time=2018-03-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1430807, encodeId=fbde143080e74, content=<a href='/topic/show?id=f9b9e9124a8' target=_blank style='color:#2F92EE;'>#综合征#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79124, encryptionId=f9b9e9124a8, topicName=综合征)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Sat May 06 05:47:00 CST 2017, time=2017-05-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1582220, encodeId=56f315822204c, content=<a href='/topic/show?id=e46f396832b' target=_blank style='color:#2F92EE;'>#呼吸窘迫#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=39683, encryptionId=e46f396832b, topicName=呼吸窘迫)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=22be16898890, createdName=12498cf9m40(暂无昵称), createdTime=Sat May 06 05:47:00 CST 2017, time=2017-05-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=193865, encodeId=7a56193865f0, content=学习了谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLK1wzJZRTON4gxYUibhUyOypBwMibC4R7SsppicGhz5Ogoy0VVq4CWnqaD2Moeib8RWxI5lOiaVmnxpan/0, createdBy=c53f1730331, createdName=tanxingdoctor, createdTime=Fri May 05 00:06:26 CST 2017, time=2017-05-05, status=1, ipAttribution=)]
    2017-05-05 tanxingdoctor

    学习了谢谢分享

    0

相关资讯

PLoS Genet：SPOP突变前列腺癌中，INF2调控的线粒体分裂异常调节

前列腺癌外显子组和基因组的下一代测序鉴定了大量的遗传变异位点。SPOP(斑点型POZ蛋白)是初级前列腺癌中最经常发生突变的基因之一，表明了SPOP是一个前列腺癌发生和发展的潜在驱使因子。然而，SPOP图片怎样导致前列腺癌的发病机理仍旧所知甚少。SPOP可以作为CUL3-RBX1 E3泛素连接酶复合物的接头蛋白并且可以招募泛素化底物以便随后的降解。内质网定位的甲酸精蛋白倒甲酸精2（INF2）可以调控

Neurobiol Aging：孔庆鹏课题组揭示长寿老人能量代谢状况优于普通老人的机制

长寿老人（特别是百岁老人）往往能逃脱或延缓常见衰老相关疾病的困扰，其后代发生老年疾病的概率也要显着低于一般人群。因此，健康长寿老人及其后代往往被视作健康衰老的理想模型，基于该模型深入解析其健康长寿的遗传机理，将可能为老年疾病的防治和干预提供全新的视角和机遇。中国科学院昆明动物研究所孔庆鹏课题组与海南医学院教授蔡望伟实验室的前期合作研究发现：长寿老人的能量代谢状况要显着优于普通老年人群（He et

Nat Med：丙酮酸激酶M2激活可减缓糖尿病肾小球病变和线粒体功能障碍的进展！

因此，PKM2激活可能防止DN，通过增强葡萄糖代谢通路，抑制毒性葡萄糖代谢产物，并且诱导线粒体生物合成以恢复线粒体功能。

Cell Death Dis：王涛实验室发现PINK1的自磷酸化修饰在线粒体质量监控中起重要作用

作为细胞的能量工厂，线粒体对于维持细胞的正常生理功能十分重要。一系列外界环境因素的干扰或者内部遗传基因的突变造成线粒体损伤，损伤的线粒体若不能及时清除会引起许多种疾病的发生，其中就包括帕金森氏综合症，第二常见的神经退行性疾病。早期的研究报道帕金森氏综合症致病基因pink1和parkin的突变会引起功能缺陷线粒体在细胞中的滞留，大量形态瓦解和功能丧失线粒体释放促凋亡因子，最终造成细胞死亡，因此PIN

Nature：线粒体钙稳态机制被揭密，有望成为心脏疾病治疗新靶点

科学界一致认为线粒体的钙离子输送量是心脏工作强度，或是由能量带动的心脏跳动强度的重要衡量指标。天普大学Lewis Katz医学院（LKSOM）和其他机构的科学家们已经鉴定了在压力条件下的线粒体钙离子途径。但是他们仍有一个疑问：线粒体的钙离子稳态是否也是正常心脏功能的必要条件？如今，利用新研制出的突变老鼠模型，John W. Elrod副教授的科学家团队证实了Slc8b1基因（线粒体钠钙交换体）或称

Theranostics：厦门大学林忠宁课题组发表鼻咽癌分子标志的筛查和靶向研究进展

近日，国际生命及医学科学领域的权威学术期刊《Theranostics》杂志上在线发表了厦门大学公共卫生学院林忠宁教授团队题为《Downregulation of mitochondrial cyclooxygenase-2 inhibits the stemness of nasopharyngeal carcinoma by decreasing the activity of dynamin-

Baidu
map
Baidu
map
Baidu
map