Baidu
map

Clin Chem:免疫富集-偶联MALDI-TOF质谱法直接检测血清中单克隆游离轻链

2019-10-19 gladiator MedSci原创

目前,游离轻链<span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size:14.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;; mso-fareast-font-family:宋体;mso-bidi-font-family:&quot;Times New Rom

目前,游离轻链(FLC)定量是目前市面上诊断和监测浆细胞疾病(pcd)患者最敏感的血液分析方法。然而,不同于直接检测单克隆FLCs (mFLCs)方法,基于所述к/λFLC比率的量化κλFLC和判定FLC测定可间接地评估克隆性。通常,异常的FLC比值是PCD的唯一指示,且通过直接方法进行确认可增加诊断的可信度。本研究的目的是开发一种分析灵敏的方法,直接检测mFLCs

首先比浊FLC定量和免疫固定电泳(IFE)评估了患者血清(N = 167)和对IgGIgA和总的和游离κλ轻链富集,并进行MALDI-TOF MS。这些方法相对于分析灵敏度,用含有mFLCs的连续稀释血清测定这些方法的相对分析灵敏度。

与异常血清方法比率(n = 127)43%单克隆抗体的蛋白质可以经IFE证实, 57%可通过MALDI-TOF MS证实,而不需要FLC富集,87%可经FLC富集MALDI-TOF MS确认。在与正常FLC比血清(N = 40),FLC MALDI-TOF MS方法鉴定1mFLC。连续稀释,并通过IFE,比浊法,和FLC MALDI-TOF MS的含血清的MFLC分析表明,FLC MALDI-TOF MS分析具有最高的分析灵敏度

研究表明,与MALDI-TOF MS偶联的FLC免疫富集可以直接检测出mFLCs,显著增加了未加FLC富集的IFEMALDI-TOF MS的异常血清FLC比值的确认,从而为诊断FLC PCDs提供了额外可信度。

原始出处:

Lusia Sepiashvili, Mindy C. Kohlhagen,Direct Detection of Monoclonal Free Light Chains in Serum by Use of Immunoenrichment-Coupled MALDI-TOF Mass Spectrometry

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 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1987486, encodeId=8468198e486b1, content=<a href='/topic/show?id=af031e620cf' target=_blank style='color:#2F92EE;'>#TOF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=108, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17620, encryptionId=af031e620cf, topicName=TOF)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5b3f89, createdName=daviiliu, createdTime=Thu Jan 09 00:33:00 CST 2020, time=2020-01-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1660203, encodeId=c5db166020302, content=<a href='/topic/show?id=8d0d28912db' target=_blank style='color:#2F92EE;'>#克隆#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=28912, encryptionId=8d0d28912db, topicName=克隆)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=596825099872, createdName=aids221, createdTime=Thu Sep 24 01:33:00 CST 2020, time=2020-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1763727, encodeId=37971e6372721, content=<a href='/topic/show?id=badd3614212' target=_blank style='color:#2F92EE;'>#单克隆游离轻链#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=36142, encryptionId=badd3614212, topicName=单克隆游离轻链)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a06a37554185, createdName=1179102698_36768938, createdTime=Tue Nov 05 07:33:00 CST 2019, time=2019-11-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1469415, encodeId=02b8146941529, content=<a href='/topic/show?id=9d6522e613' target=_blank style='color:#2F92EE;'>#ALD#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2276, encryptionId=9d6522e613, topicName=ALD)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=64f67025397, createdName=zhangjingnwpu, createdTime=Mon Oct 21 02:33:00 CST 2019, time=2019-10-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1553370, encodeId=a64815533e07f, content=<a href='/topic/show?id=81bd923e559' target=_blank style='color:#2F92EE;'>#质谱#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=92375, encryptionId=81bd923e559, topicName=质谱)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=96fd14366106, createdName=jeanqiuqiu, createdTime=Mon Oct 21 02:33:00 CST 2019, time=2019-10-21, status=1, ipAttribution=)]
    2020-01-09 daviiliu
  2. [GetPortalCommentsPageByObjectIdResponse(id=1987486, encodeId=8468198e486b1, content=<a href='/topic/show?id=af031e620cf' target=_blank style='color:#2F92EE;'>#TOF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=108, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17620, encryptionId=af031e620cf, topicName=TOF)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5b3f89, createdName=daviiliu, createdTime=Thu Jan 09 00:33:00 CST 2020, time=2020-01-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1660203, encodeId=c5db166020302, content=<a href='/topic/show?id=8d0d28912db' target=_blank style='color:#2F92EE;'>#克隆#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=28912, encryptionId=8d0d28912db, topicName=克隆)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=596825099872, createdName=aids221, createdTime=Thu Sep 24 01:33:00 CST 2020, time=2020-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1763727, encodeId=37971e6372721, content=<a href='/topic/show?id=badd3614212' target=_blank style='color:#2F92EE;'>#单克隆游离轻链#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=36142, encryptionId=badd3614212, topicName=单克隆游离轻链)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a06a37554185, createdName=1179102698_36768938, createdTime=Tue Nov 05 07:33:00 CST 2019, time=2019-11-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1469415, encodeId=02b8146941529, content=<a href='/topic/show?id=9d6522e613' target=_blank style='color:#2F92EE;'>#ALD#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2276, encryptionId=9d6522e613, topicName=ALD)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=64f67025397, createdName=zhangjingnwpu, createdTime=Mon Oct 21 02:33:00 CST 2019, time=2019-10-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1553370, encodeId=a64815533e07f, content=<a href='/topic/show?id=81bd923e559' target=_blank style='color:#2F92EE;'>#质谱#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=92375, encryptionId=81bd923e559, topicName=质谱)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=96fd14366106, createdName=jeanqiuqiu, createdTime=Mon Oct 21 02:33:00 CST 2019, time=2019-10-21, status=1, ipAttribution=)]
    2020-09-24 aids221
  3. [GetPortalCommentsPageByObjectIdResponse(id=1987486, encodeId=8468198e486b1, content=<a href='/topic/show?id=af031e620cf' target=_blank style='color:#2F92EE;'>#TOF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=108, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17620, encryptionId=af031e620cf, topicName=TOF)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5b3f89, createdName=daviiliu, createdTime=Thu Jan 09 00:33:00 CST 2020, time=2020-01-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1660203, encodeId=c5db166020302, content=<a href='/topic/show?id=8d0d28912db' target=_blank style='color:#2F92EE;'>#克隆#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=28912, encryptionId=8d0d28912db, topicName=克隆)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=596825099872, createdName=aids221, createdTime=Thu Sep 24 01:33:00 CST 2020, time=2020-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1763727, encodeId=37971e6372721, content=<a href='/topic/show?id=badd3614212' target=_blank style='color:#2F92EE;'>#单克隆游离轻链#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=36142, encryptionId=badd3614212, topicName=单克隆游离轻链)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a06a37554185, createdName=1179102698_36768938, createdTime=Tue Nov 05 07:33:00 CST 2019, time=2019-11-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1469415, encodeId=02b8146941529, content=<a href='/topic/show?id=9d6522e613' target=_blank style='color:#2F92EE;'>#ALD#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2276, encryptionId=9d6522e613, topicName=ALD)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=64f67025397, createdName=zhangjingnwpu, createdTime=Mon Oct 21 02:33:00 CST 2019, time=2019-10-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1553370, encodeId=a64815533e07f, content=<a href='/topic/show?id=81bd923e559' target=_blank style='color:#2F92EE;'>#质谱#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=92375, encryptionId=81bd923e559, topicName=质谱)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=96fd14366106, createdName=jeanqiuqiu, createdTime=Mon Oct 21 02:33:00 CST 2019, time=2019-10-21, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1987486, encodeId=8468198e486b1, content=<a href='/topic/show?id=af031e620cf' target=_blank style='color:#2F92EE;'>#TOF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=108, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17620, encryptionId=af031e620cf, topicName=TOF)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5b3f89, createdName=daviiliu, createdTime=Thu Jan 09 00:33:00 CST 2020, time=2020-01-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1660203, encodeId=c5db166020302, content=<a href='/topic/show?id=8d0d28912db' target=_blank style='color:#2F92EE;'>#克隆#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=28912, encryptionId=8d0d28912db, topicName=克隆)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=596825099872, createdName=aids221, createdTime=Thu Sep 24 01:33:00 CST 2020, time=2020-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1763727, encodeId=37971e6372721, content=<a href='/topic/show?id=badd3614212' target=_blank style='color:#2F92EE;'>#单克隆游离轻链#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=36142, encryptionId=badd3614212, topicName=单克隆游离轻链)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a06a37554185, createdName=1179102698_36768938, createdTime=Tue Nov 05 07:33:00 CST 2019, time=2019-11-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1469415, encodeId=02b8146941529, content=<a href='/topic/show?id=9d6522e613' target=_blank style='color:#2F92EE;'>#ALD#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2276, encryptionId=9d6522e613, topicName=ALD)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=64f67025397, createdName=zhangjingnwpu, createdTime=Mon Oct 21 02:33:00 CST 2019, time=2019-10-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1553370, encodeId=a64815533e07f, content=<a href='/topic/show?id=81bd923e559' target=_blank style='color:#2F92EE;'>#质谱#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=92375, encryptionId=81bd923e559, topicName=质谱)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=96fd14366106, createdName=jeanqiuqiu, createdTime=Mon Oct 21 02:33:00 CST 2019, time=2019-10-21, status=1, ipAttribution=)]
    2019-10-21 zhangjingnwpu
  5. [GetPortalCommentsPageByObjectIdResponse(id=1987486, encodeId=8468198e486b1, content=<a href='/topic/show?id=af031e620cf' target=_blank style='color:#2F92EE;'>#TOF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=108, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17620, encryptionId=af031e620cf, topicName=TOF)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5b3f89, createdName=daviiliu, createdTime=Thu Jan 09 00:33:00 CST 2020, time=2020-01-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1660203, encodeId=c5db166020302, content=<a href='/topic/show?id=8d0d28912db' target=_blank style='color:#2F92EE;'>#克隆#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=28912, encryptionId=8d0d28912db, topicName=克隆)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=596825099872, createdName=aids221, createdTime=Thu Sep 24 01:33:00 CST 2020, time=2020-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1763727, encodeId=37971e6372721, content=<a href='/topic/show?id=badd3614212' target=_blank style='color:#2F92EE;'>#单克隆游离轻链#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=36142, encryptionId=badd3614212, topicName=单克隆游离轻链)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a06a37554185, createdName=1179102698_36768938, createdTime=Tue Nov 05 07:33:00 CST 2019, time=2019-11-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1469415, encodeId=02b8146941529, content=<a href='/topic/show?id=9d6522e613' target=_blank style='color:#2F92EE;'>#ALD#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2276, encryptionId=9d6522e613, topicName=ALD)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=64f67025397, createdName=zhangjingnwpu, createdTime=Mon Oct 21 02:33:00 CST 2019, time=2019-10-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1553370, encodeId=a64815533e07f, content=<a href='/topic/show?id=81bd923e559' target=_blank style='color:#2F92EE;'>#质谱#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=92375, encryptionId=81bd923e559, topicName=质谱)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=96fd14366106, createdName=jeanqiuqiu, createdTime=Mon Oct 21 02:33:00 CST 2019, time=2019-10-21, status=1, ipAttribution=)]
    2019-10-21 jeanqiuqiu

相关资讯

J Int Adv Otol:突发感官听力损失患者血清中循环免疫复合物和热激蛋白70研究

最近,有研究人员分析了评估了热激蛋白70(Hsp70)和循环免疫复合物(CIC)在患有突发感官听力损失(SSHL)患者中的作用,地点在一个研究性大学的高级护理中心(2014-2017)。研究人员对参与者的疾病历史进行了访谈,并对耳朵、鼻子和咽喉(ENT)进行了检查,还进行了听力测试。之后对CIC和Hsp70蛋白进行了分析。研究人员还进行了简单的斑点杂交方法来鉴定结合到CIC上的Hsp70游离Hsp

Clinica Chimica Acta:急性肾损伤患者血清总钙和电离钙与全因死亡率的关系

目前还没有流行病学研究对血清总钙和电离钙(tCa和iCa)对急性肾损伤(AKI)危重患者预后的影响进行相关研究。在此,我们评估了入院tCa和iCa浓度与这些患者全因死亡率的关系。

Blood:尿单克隆蛋白不是判定MM患者是否完全缓解的必要指标

中心点:经治疗后,sIFE转为阴性的多发性骨髓瘤患者,100%(确诊时仅血清M蛋白阳性)或98.6%(确诊时血清和尿液M蛋白均阳性)的为uIFE阴性。符合完全缓解标准单无uIFE检测结果的患者的预后与完全缓解的患者的预后相当,优于部分缓解患者的预后。摘要:多发性骨髓瘤(MM)的完全缓解(CR)的标准为免疫固定电泳血清(sIFE)和尿液(uIFE)单克隆蛋白(M-蛋白)均为阴性。但患者sIFE转阴性

血清低孕酮水平患者行IVF成功妊娠并分娩一例

患者25岁,未避孕未孕2年。因子宫输卵管碘 油造影结果显示双侧输卵管不全性阻塞,行介入复 通术。术后1年再次复查造影显示双侧输卵管通 畅。男方精液正常,在我院行2个周期人工授精助 孕未孕后转行IVF。患者卵巢功能正常,第一周期 行短效长方案,黄体期醋酸曲普瑞林(达必佳,德国 辉凌)0.1 mg降调,降调16 d后B超监测双侧卵巢 窦卵泡共7个,重组人促卵泡激素(果纳芬,默克雪 兰诺)225 U启动

J Proteome Res:非侵入性血清代谢组分析阐释了前列腺癌中犬尿氨酸途径代谢物水平提高

最近,有研究人员应用高分辨率代谢组分析检测了可能对前列腺癌(PCa)具有明显作用的化合物。测试人群的血清来源于对照组(n=96)和PCa患者组(n=50)。根据PSA水平是否大于4或者小于4,又将PCa患者组分成2个亚组,分别包括25名患者。研究人员利用单变量分析,在错误发现率(FDR)为q=0.05时确定了显出差异的代谢物。主成分分析(PCA)和分层聚类分析(HCA)能够明显的区分健康个体和PC

血清 γ 球蛋白正常的皮肤浆细胞增多症1 例

患者男, 35 岁。右侧臀部、右侧下肢红褐色斑 块、结节8 个月。患者 8 个月前无明显诱因右侧臀 部出现钱币大红褐色斑块,瘙痒明显,搔抓后皮损面 积逐渐扩大; 曾自行外用“皮炎平”等药物治疗,病 情无好转,逐渐扩大,且相互融合,并于右侧腹股沟、 右股内侧陆续出现新皮损。病程中患者无发热、关 节肿痛,睡眠饮食尚可,二便正常,体重无明显变化。 患者既往体健,否认系统性疾病,否认食物药物过敏 史,否认

Baidu
map
Baidu
map
Baidu
map