Environ Pollut:大气中的粗细颗粒能够对鼻腔和支气管上皮细胞产生不同的影响和诱发不同的免疫响应

2018-08-18 AlexYang MedSci原创

大气中的颗粒物质(PM)在流行病学上能够加速恶化呼吸和免疫健康,包括过敏性鼻炎(AR)和支气管哮喘(BA)。尽管精细的和粗大的颗粒能够影响呼吸道,然而他们对上呼吸道和下呼吸道以及免疫系统的影响差异、它们潜在的机制和对健康造成不良影响的组成仍旧还没有完全的阐释。最近,有研究人员利用旋流技术在日本的3个不同的地区搜集了大气精细和粗大颗粒。研究发现,在所有地点搜集到的两种颗粒均能减少鼻腔上皮细胞和抗原呈

大气中的颗粒物质(PM)在流行病学上能够加速恶化呼吸和免疫健康,包括过敏性鼻炎(AR)和支气管哮喘(BA)。尽管精细的和粗大的颗粒能够影响呼吸道,然而他们对上呼吸道和下呼吸道以及免疫系统的影响差异、它们潜在的机制和对健康造成不良影响的组成仍旧还没有完全的阐释。

最近,有研究人员利用旋流技术在日本的3个不同的地区搜集了大气精细和粗大颗粒。研究发现,在所有地点搜集到的两种颗粒均能减少鼻腔上皮细胞和抗原呈递细胞(APCs)的生存力,并且能够增加支气管上皮细胞和APCs细胞IL-6、IL-8和IL-1β的产生,还能诱导树突和上皮细胞(DEC)205的表达。另外,3个位置搜集的2种颗粒能够引起不同的炎症响应,而不是细胞毒性。一些组分,比如 Ti、Co、Zn、Pb、As和有机碳(OC)和碳元素(EC)与炎症响应或者细胞毒性具有显著的相关性。

最后,研究人员指出,他们的结果表明了大气精细和粗大颗粒能够对鼻腔和支气管上皮细胞和炎症响应产生不同的影响,可能是由于颗粒的大小、化学组成和颗粒类型的来源有关。

原始出处:


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    2018-08-22 AlexYang

    有意思!

    0

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    2018-08-20 mnda
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    2018-08-20 july_979
  7. [GetPortalCommentsPageByObjectIdResponse(id=1892171, encodeId=21c318921e13a, content=<a href='/topic/show?id=1b445e1232d' target=_blank style='color:#2F92EE;'>#支气管#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=57123, encryptionId=1b445e1232d, topicName=支气管)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f503121, createdName=zjubiostat, createdTime=Sun Jul 14 15:27:00 CST 2019, time=2019-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1944051, encodeId=7e5819440515e, content=<a href='/topic/show?id=f48228993d0' target=_blank style='color:#2F92EE;'>#免疫响应#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=28993, encryptionId=f48228993d0, topicName=免疫响应)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5c82369, createdName=jiekemin, createdTime=Thu May 09 03:27:00 CST 2019, time=2019-05-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2041527, encodeId=e6b2204152e8e, content=<a href='/topic/show?id=25995e12425' target=_blank style='color:#2F92EE;'>#支气管上皮细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=57124, encryptionId=25995e12425, topicName=支气管上皮细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21015, createdName=heli0118, createdTime=Fri Sep 07 11:27:00 CST 2018, time=2018-09-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=340154, encodeId=4f19340154db, content=有意思!, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=9b2e1935437, createdName=AlexYang, createdTime=Wed Aug 22 13:09:01 CST 2018, time=2018-08-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1465838, encodeId=51231465838dd, content=<a href='/topic/show?id=736b103508c6' target=_blank style='color:#2F92EE;'>#鼻腔#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=103508, encryptionId=736b103508c6, topicName=鼻腔)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=224e6763385, createdName=mnda, createdTime=Mon Aug 20 02:27:00 CST 2018, time=2018-08-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1524265, encodeId=bd5015242657d, content=<a href='/topic/show?id=053710045ad' target=_blank style='color:#2F92EE;'>#iron#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10045, encryptionId=053710045ad, topicName=iron)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3f1b11597510, createdName=july_979, createdTime=Mon Aug 20 02:27:00 CST 2018, time=2018-08-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1533871, encodeId=778815338e151, content=<a href='/topic/show?id=4be9200308c' target=_blank style='color:#2F92EE;'>#上皮细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=20030, encryptionId=4be9200308c, topicName=上皮细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3a5d12492718, createdName=lizhou0208, createdTime=Mon Aug 20 02:27:00 CST 2018, time=2018-08-20, status=1, ipAttribution=)]

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