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Clin J Am Soc Nephrol:抗GBM线性抗原表位抗体与患者肾损伤相关

2012-06-26 范振光 医学论坛报

  北京大学第一医院赵明辉等研究发现,在抗肾小球基底膜(GBM)病患者中,可以检测到抗 肾小球基底膜Ⅳ型胶原α3链非胶原区1[α3(Ⅳ)NC1]上线性表位的抗体,且该抗体与患者的肾损伤相关。该论文发表于《美国肾脏病学会临床杂志》(Clin J Am Soc Nephrol. 2012 Jun;7(6):926-33)。     研究人员共纳入68例抗GBM病患者,并合成了人α3(Ⅳ)

  北京大学第一医院赵明辉等研究发现,在抗肾小球基底膜(GBM)病患者中,可以检测到抗 肾小球基底膜Ⅳ型胶原α3链非胶原区1[α3(Ⅳ)NC1]上线性表位的抗体,且该抗体与患者的肾损伤相关。该论文发表于《美国肾脏病学会临床杂志》(Clin J Am Soc Nephrol. 2012 Jun;7(6):926-33)。
 
  研究人员共纳入68例抗GBM病患者,并合成了人α3(Ⅳ)NC1全长的24个重叠肽段(线性表位),同时采用酶联免疫吸附法(ELISA)检测抗GBM病患者血清中抗体对线性表位的识别情况。
 
  结果显示,在55例患者中可以检测到抗线性表位的抗体(80.9%)。识别率最高的3种表位分别为P14(41%)、P16(36.8%)和P18(57%),其中P14是T细胞和B细胞共有的一种表位。
 
  分析显示,抗P14抗体阳性的患者常见于抗中性粒细胞胞浆抗体阳性者(39.3%对12.5%,P=0.01);抗P16抗体阳性的患者常表现为诊断时血清肌酐水平较高[(665.5±227.2)μmol/L对(443.7±296.8)μmol/L],以及随访过程中肾脏转归较差[危险比(HR)为2.10,95%可信区间(CI)为1.10~3.90;P=0.02];抗P18抗体水平与肾小球新月体的百分比呈正相关(P=0.008)。此外,抗P22抗体阳性是患者死亡的独立预测指标(HR为3.02,95%CI为1.20~7.57;P=0.02)。

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    2013-02-24 yangfl18
  2. [GetPortalCommentsPageByObjectIdResponse(id=1755795, encodeId=b0041e55795df, content=<a href='/topic/show?id=71cce87305' target=_blank style='color:#2F92EE;'>#GBM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7873, encryptionId=71cce87305, topicName=GBM)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=422437038895, createdName=yangfl18, createdTime=Sun Feb 24 23:41:00 CST 2013, time=2013-02-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1396704, encodeId=6ed41396e04ff, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56543, encryptionId=8bee565436d, topicName=损伤)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4dfa37, createdName=智者为医08, createdTime=Thu Jun 28 07:41:00 CST 2012, time=2012-06-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1623206, encodeId=b6b8162320602, content=<a href='/topic/show?id=62a655263e9' target=_blank style='color:#2F92EE;'>#抗原#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=55263, encryptionId=62a655263e9, topicName=抗原)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f59b20519025, createdName=xiaoyeshuang, createdTime=Thu Jun 28 07:41:00 CST 2012, time=2012-06-28, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1755795, encodeId=b0041e55795df, content=<a href='/topic/show?id=71cce87305' target=_blank style='color:#2F92EE;'>#GBM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7873, encryptionId=71cce87305, topicName=GBM)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=422437038895, createdName=yangfl18, createdTime=Sun Feb 24 23:41:00 CST 2013, time=2013-02-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1396704, encodeId=6ed41396e04ff, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56543, encryptionId=8bee565436d, topicName=损伤)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4dfa37, createdName=智者为医08, createdTime=Thu Jun 28 07:41:00 CST 2012, time=2012-06-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1623206, encodeId=b6b8162320602, content=<a href='/topic/show?id=62a655263e9' target=_blank style='color:#2F92EE;'>#抗原#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=55263, encryptionId=62a655263e9, topicName=抗原)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f59b20519025, createdName=xiaoyeshuang, createdTime=Thu Jun 28 07:41:00 CST 2012, time=2012-06-28, status=1, ipAttribution=)]

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