Allergy:哮喘患者血中白细胞和血清CD48水平随疾病严重程度变化!

2017-05-29 xing.T MedSci原创

由此可见,哮喘患者外周血中mCD48和sCD48的不同表达随疾病严重程度的不同而有所差异。sCD48可以抑制CD244介导的嗜酸性粒细胞活化。这些结果表明,CD48可能在人类哮喘发病中起着重要作用。

CD48是嗜酸性粒细胞和肥大细胞上一种膜受体(mCD48),其存在可溶性形式(sCD48)。CD48在小鼠哮喘发病中以及在肥大细胞和嗜酸性粒细胞通过其配体CD244相互促炎作用中发挥着举足轻重的作用。因此,上述结果提示CD48可能在人类哮喘发病机制中发挥着重要的作用。

近日,过敏性疾病领域权威杂志Allergy上发表了一篇研究文章,研究人员评估了由轻度、中度、重度哮喘和健康志愿者组成的两个独立的队列(IL和UK)参与者白细胞mCD48的表达和血清sCD48水平。研究人员对哮喘支气管活检标本进行免疫组化染色标记CD48。并且评估了CD48对CD244依赖的嗜酸性粒细胞活化的影响。

在中度哮喘患者中,嗜酸性粒细胞mCD48表达显著升高,而重症哮喘患者有所下调。研究人员发现严重哮喘患者B细胞、T细胞、NK细胞和单核细胞的mCD48表达明显增加。在轻度哮喘患者中sCD48水平显著升高,而重度哮喘反而减少。将哮喘患者从健康人中鉴别出来的sCD48最佳临界值为>1482pg/ml(IL)和>1619pg/ml(UK)。在哮喘支气管活检中,mCD48主要表达在嗜酸性粒细胞上。sCD48可以抑制抗CD244诱导的嗜酸性粒细胞活化。

由此可见,哮喘患者外周血中mCD48和sCD48的不同表达随疾病严重程度的不同而有所差异。sCD48可以抑制CD244介导的嗜酸性粒细胞活化。这些结果表明,CD48可能在人类哮喘发病中起着重要作用。

原始出处:

R. S. Gangwar,et al. CD48 on blood leukocytes and in serum of asthma patients varies with severity. Allergy. 2017. http://onlinelibrary.wiley.com/doi/10.1111/all.13082/full

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    2017-06-18 qidongfanjian
  2. [GetPortalCommentsPageByObjectIdResponse(id=1864222, encodeId=d4fc18642228b, content=<a href='/topic/show?id=f930432538' target=_blank style='color:#2F92EE;'>#CD4#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4325, encryptionId=f930432538, topicName=CD4)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b09892, createdName=qidongfanjian, createdTime=Sun Jun 18 11:26:00 CST 2017, time=2017-06-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1328963, encodeId=ed0a132896380, content=<a href='/topic/show?id=bb96232801' target=_blank style='color:#2F92EE;'>#ALL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2328, encryptionId=bb96232801, topicName=ALL)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdqq.qlogo.cn/qqapp/1103841572/C2EFD5CFB07FE291138AD4FD0C98E3DE/100, createdBy=e3d52500031, createdName=膀胱癌, createdTime=Wed May 31 12:26:00 CST 2017, time=2017-05-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=204266, encodeId=34322042660b, content=学习了,涨知识, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220115/46bcf39c32de4aa6b45c5f9d66c8ee77/6cb4a20c55bb4b7691122f47747bfca2.jpg, createdBy=9dad1662329, createdName=1ddf0692m34(暂无匿称), createdTime=Tue May 30 07:02:21 CST 2017, time=2017-05-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=204119, encodeId=baa220411906, content=学习啦谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLK1wzJZRTON4gxYUibhUyOypBwMibC4R7SsppicGhz5Ogoy0VVq4CWnqaD2Moeib8RWxI5lOiaVmnxpan/0, createdBy=c53f1730331, createdName=tanxingdoctor, createdTime=Mon May 29 21:38:15 CST 2017, time=2017-05-29, status=1, ipAttribution=)]
    2017-05-31 膀胱癌
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    2017-05-30 1ddf0692m34(暂无匿称)

    学习了,涨知识

    0

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    2017-05-29 tanxingdoctor

    学习啦谢谢分享

    0

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