Plos Pathog:酰基羧酸水解酶促进脂多糖诱导的急性肺损伤的消退

2017-06-20 MedSci MedSci原创

我们报告了AOAH以前不了解的促进LPS或革兰氏阴性细菌诱导的肺损伤的消退的作用。除了许多其他预分解机制,我们的研究表明,灭活MAMP分子对于从MAMP诱导的肺损伤中恢复是至关重要的。促进组织中LPS和其他MAMP分子降解的干预可促进炎症的消除。

肺部感染是急性肺损伤(ALI)的最常见的危险因素。由微生物相关分子模式(MAMP)分子诱导的先天免疫应答对于肺部防御是必不可少的,但可导致组织损伤。我们对关于MAMP分子如何在肺中降解或MAMP降解/失活如何有助于预防或改善产生ALI的有害炎症等知之甚少。酰基羧酸水解酶(AOAH)是使革兰氏阴性细菌内毒素(脂多糖或LPS)失活的宿主脂肪酶。我们在这里报道,肺泡巨噬细胞暴露于LPS后增加AOAH表达,并且由鼻内滴注的LPS或肺炎克雷伯氏杆菌诱导的ALI的Aoah + / +小鼠比Aoah - / - 小鼠恢复更快。Aoah - / - 小鼠肺具有更持续的白细胞浸润,更多的促炎细胞因子表达和持久的肺泡屏障损伤。我们还报导了Aoah - / - 肺泡中持续生物活性的LPS可以直接刺激肺泡巨噬细胞和间接刺激细胞上皮细胞,并导致产生将嗜中性粒细胞募集到肺部并可能阻止其清除的化学引诱物的证据。与LPS暴露的Aoah - / - 腹膜巨噬细胞中观察到的长期耐受性不同,缺乏AOAH的肺泡巨噬细胞维持或增加其对生物活性LPS的反应并持续发炎。AOAH导致的LPS的失活是可以使由革兰阴性细菌感染引起的肺部炎症/损伤消退的以前未被认可的机制。

结论:我们报告了AOAH以前不了解的促进LPS或革兰氏阴性细菌诱导的肺损伤的消退的作用。除了许多其他预分解机制,我们的研究表明,灭活MAMP分子对于从MAMP诱导的肺损伤中恢复是至关重要的。促进组织中LPS和其他MAMP分子降解的干预可促进炎症的消除。

原文出处:

Benkun Zou,Wei Jiang,Han Han,et al.Acyloxyacyl hydrolase promotes the resolution of lipopolysaccharide-induced acute lung injury.[J]Published: June 16, 2017,https://doi.org/10.1371/journal.ppat.1006436

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=2070047, encodeId=33af20e0047b4, content=<a href='/topic/show?id=74949553981' target=_blank style='color:#2F92EE;'>#酰基羧酸水解酶#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=95539, encryptionId=74949553981, topicName=酰基羧酸水解酶)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7460166, createdName=zhang92560, createdTime=Fri Apr 27 01:57:00 CST 2018, time=2018-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1395393, encodeId=0aed1395393da, content=<a href='/topic/show?id=d051523897d' target=_blank style='color:#2F92EE;'>#急性肺损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=52389, encryptionId=d051523897d, topicName=急性肺损伤)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdqq.qlogo.cn/qqapp/101296147/B41263AF328B0A74CD1BA5216160E938/100, createdBy=20992500196, createdName=ms6323715314570549, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397229, encodeId=215a139e22988, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56543, encryptionId=8bee565436d, topicName=损伤)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoNX3lUOlDKGBUEPNwZx0nibmdcFyeibnX4WMhUSCU2REpGRWtSmnT2CCs0dA5waxvJknYDxwtYnIcQ/132, createdBy=294e2500218, createdName=ms3046638856685384, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1429849, encodeId=1de1142984958, content=<a href='/topic/show?id=cc2584301d4' target=_blank style='color:#2F92EE;'>#脂多糖#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84301, encryptionId=cc2584301d4, topicName=脂多糖)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2f354234967, createdName=小刀医生, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1503302, encodeId=5dda1503302dd, content=<a href='/topic/show?id=67a7821250e' target=_blank style='color:#2F92EE;'>#肺损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=82125, encryptionId=67a7821250e, topicName=肺损伤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=05329610584, createdName=tastas, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=2070047, encodeId=33af20e0047b4, content=<a href='/topic/show?id=74949553981' target=_blank style='color:#2F92EE;'>#酰基羧酸水解酶#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=95539, encryptionId=74949553981, topicName=酰基羧酸水解酶)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7460166, createdName=zhang92560, createdTime=Fri Apr 27 01:57:00 CST 2018, time=2018-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1395393, encodeId=0aed1395393da, content=<a href='/topic/show?id=d051523897d' target=_blank style='color:#2F92EE;'>#急性肺损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=52389, encryptionId=d051523897d, topicName=急性肺损伤)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdqq.qlogo.cn/qqapp/101296147/B41263AF328B0A74CD1BA5216160E938/100, createdBy=20992500196, createdName=ms6323715314570549, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397229, encodeId=215a139e22988, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56543, encryptionId=8bee565436d, topicName=损伤)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoNX3lUOlDKGBUEPNwZx0nibmdcFyeibnX4WMhUSCU2REpGRWtSmnT2CCs0dA5waxvJknYDxwtYnIcQ/132, createdBy=294e2500218, createdName=ms3046638856685384, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1429849, encodeId=1de1142984958, content=<a href='/topic/show?id=cc2584301d4' target=_blank style='color:#2F92EE;'>#脂多糖#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84301, encryptionId=cc2584301d4, topicName=脂多糖)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2f354234967, createdName=小刀医生, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1503302, encodeId=5dda1503302dd, content=<a href='/topic/show?id=67a7821250e' target=_blank style='color:#2F92EE;'>#肺损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=82125, encryptionId=67a7821250e, topicName=肺损伤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=05329610584, createdName=tastas, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=2070047, encodeId=33af20e0047b4, content=<a href='/topic/show?id=74949553981' target=_blank style='color:#2F92EE;'>#酰基羧酸水解酶#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=95539, encryptionId=74949553981, topicName=酰基羧酸水解酶)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7460166, createdName=zhang92560, createdTime=Fri Apr 27 01:57:00 CST 2018, time=2018-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1395393, encodeId=0aed1395393da, content=<a href='/topic/show?id=d051523897d' target=_blank style='color:#2F92EE;'>#急性肺损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=52389, encryptionId=d051523897d, topicName=急性肺损伤)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdqq.qlogo.cn/qqapp/101296147/B41263AF328B0A74CD1BA5216160E938/100, createdBy=20992500196, createdName=ms6323715314570549, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397229, encodeId=215a139e22988, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56543, encryptionId=8bee565436d, topicName=损伤)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoNX3lUOlDKGBUEPNwZx0nibmdcFyeibnX4WMhUSCU2REpGRWtSmnT2CCs0dA5waxvJknYDxwtYnIcQ/132, createdBy=294e2500218, createdName=ms3046638856685384, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1429849, encodeId=1de1142984958, content=<a href='/topic/show?id=cc2584301d4' target=_blank style='color:#2F92EE;'>#脂多糖#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84301, encryptionId=cc2584301d4, topicName=脂多糖)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2f354234967, createdName=小刀医生, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1503302, encodeId=5dda1503302dd, content=<a href='/topic/show?id=67a7821250e' target=_blank style='color:#2F92EE;'>#肺损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=82125, encryptionId=67a7821250e, topicName=肺损伤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=05329610584, createdName=tastas, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=2070047, encodeId=33af20e0047b4, content=<a href='/topic/show?id=74949553981' target=_blank style='color:#2F92EE;'>#酰基羧酸水解酶#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=95539, encryptionId=74949553981, topicName=酰基羧酸水解酶)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7460166, createdName=zhang92560, createdTime=Fri Apr 27 01:57:00 CST 2018, time=2018-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1395393, encodeId=0aed1395393da, content=<a href='/topic/show?id=d051523897d' target=_blank style='color:#2F92EE;'>#急性肺损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=52389, encryptionId=d051523897d, topicName=急性肺损伤)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdqq.qlogo.cn/qqapp/101296147/B41263AF328B0A74CD1BA5216160E938/100, createdBy=20992500196, createdName=ms6323715314570549, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397229, encodeId=215a139e22988, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56543, encryptionId=8bee565436d, topicName=损伤)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoNX3lUOlDKGBUEPNwZx0nibmdcFyeibnX4WMhUSCU2REpGRWtSmnT2CCs0dA5waxvJknYDxwtYnIcQ/132, createdBy=294e2500218, createdName=ms3046638856685384, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1429849, encodeId=1de1142984958, content=<a href='/topic/show?id=cc2584301d4' target=_blank style='color:#2F92EE;'>#脂多糖#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84301, encryptionId=cc2584301d4, topicName=脂多糖)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2f354234967, createdName=小刀医生, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1503302, encodeId=5dda1503302dd, content=<a href='/topic/show?id=67a7821250e' target=_blank style='color:#2F92EE;'>#肺损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=82125, encryptionId=67a7821250e, topicName=肺损伤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=05329610584, createdName=tastas, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=2070047, encodeId=33af20e0047b4, content=<a href='/topic/show?id=74949553981' target=_blank style='color:#2F92EE;'>#酰基羧酸水解酶#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=95539, encryptionId=74949553981, topicName=酰基羧酸水解酶)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7460166, createdName=zhang92560, createdTime=Fri Apr 27 01:57:00 CST 2018, time=2018-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1395393, encodeId=0aed1395393da, content=<a href='/topic/show?id=d051523897d' target=_blank style='color:#2F92EE;'>#急性肺损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=52389, encryptionId=d051523897d, topicName=急性肺损伤)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdqq.qlogo.cn/qqapp/101296147/B41263AF328B0A74CD1BA5216160E938/100, createdBy=20992500196, createdName=ms6323715314570549, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397229, encodeId=215a139e22988, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56543, encryptionId=8bee565436d, topicName=损伤)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoNX3lUOlDKGBUEPNwZx0nibmdcFyeibnX4WMhUSCU2REpGRWtSmnT2CCs0dA5waxvJknYDxwtYnIcQ/132, createdBy=294e2500218, createdName=ms3046638856685384, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1429849, encodeId=1de1142984958, content=<a href='/topic/show?id=cc2584301d4' target=_blank style='color:#2F92EE;'>#脂多糖#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84301, encryptionId=cc2584301d4, topicName=脂多糖)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2f354234967, createdName=小刀医生, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1503302, encodeId=5dda1503302dd, content=<a href='/topic/show?id=67a7821250e' target=_blank style='color:#2F92EE;'>#肺损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=82125, encryptionId=67a7821250e, topicName=肺损伤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=05329610584, createdName=tastas, createdTime=Thu Jun 22 01:57:00 CST 2017, time=2017-06-22, status=1, ipAttribution=)]
    2017-06-22 tastas

相关资讯

STM:未成熟的干细胞可修复肺损伤

目前,在急性肺损伤中存活下来的病人的肺部功能都可恢复,这意味着成人的肺组织可在某种程度上再生。根据不同肺损伤的成因或严重性,许多不同种类的始祖细胞都可成功帮助小鼠肺部再生,这些始祖细胞包括肺泡II型细胞以及气道末梢肝细胞。近日,Vaughan和他的团队发现未成熟的隐形内皮谱系始祖细胞(LNEP cells)可以恢复因流感病毒或博来霉素而引起的肺损伤。LNEP细胞在正常小鼠的肺末梢中是处于休眠状态的