Nat Methods:12种miRNA表达平台的比较

2014-07-12 liyao5018 转化医学网

microRNA(miRNA)作为基因表达的重要调节因子,在近年来被广泛研究。目前,人们利用各种不同的技术来确定生物样品中miRNA的相对丰度,包括小RNA测序、RT-qPCR和芯片等。这些技术究竟孰优孰劣?比利时根特大学领导的团队比较了12种miRNA表达分析平台,并将其结果发表在6月29日的《Nature Methods》在线版上。 miRNA虽小,却在许多生物过程中扮演了重要角色,而它们也

microRNA(miRNA)作为基因表达的重要调节因子,在近年来被广泛研究。目前,人们利用各种不同的技术来确定生物样品中miRNA的相对丰度,包括小RNA测序、RT-qPCR芯片等。这些技术究竟孰优孰劣?比利时根特大学领导的团队比较了12种miRNA表达分析平台,并将其结果发表在6月29日的 Nature Methods 在线版上。

miRNA虽小,却在许多生物过程中扮演了重要角色,而它们也有望成为疾病诊断的标志物以及治疗的靶点。然而,由于成熟miRNA很小, miRNA家族成员之间的同源性高,而且miRNA在体液中的丰度较低,故miRNA的检测和定量颇具挑战性。近年来,一些miRNA表达谱分析技术被开发出来,并成功应用于miRNA表达的定量。不过,它们的性能未经过彻底评估。

为此,比利时根特大学(Ghent University)的研究人员联合各大miRNA表达分析技术的供应商,全面评估了12种不同的miRNA表达谱分析平台的性能。这12个平台来自9个供应商,涉及到定量PCR、杂交和测序三种技术,具体如下。

定量PCR

杂交

miRCuryExiqon

microarrayAffymetrix

OpenArrayLife Tech

microarrayAgilent

TaqMan CardsLife Tech

nCounterNanostring

TaqMan Cards preAmpLife Tech

 

miScriptQIAGEN

测序

qScriptQuanta BioSciences

TruSeqIllumina

SmartChip(WaferGen)

Ion TorrentLife Tech


在这项研究中,他们利用每个平台分析16个(必选)和4个(可选)标准化的阳性和阴性对照样品,以评估各种性能,包括特异性、灵敏度、准确性和重复性。他们将每个参数转化成z-分数,以实现平台的直接比较。

分析表明,基于相同技术的平台可能有着非常不同的性能。这一点在qPCR平台的重复性和特异性上表现得最为 明显。相比之下,灵敏度是技术相关的,qPCR平台有着整体上更好的分数。这种出色的灵敏度往往伴随着高的准确性,带来可靠的定量测定。芯片平台的灵敏度 较低,即使是起始RNA不受限制时,而测序平台在RNA不受限制时较为灵敏,但起始RNA较低时也受到影响。

研究人员也发现,仅有少数平台能够捕获小的表达差异,其中前三名的平台分别为安捷伦的芯片、WaferGen的SmartChip和Illumina的TruSeq。因此,这一特征似乎与技术无关。

最后,作者也提到,每个平台都有其特定的长处和短处,大家应根据实验设置和具体的研究问题来选择合适的平台。

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=1880172, encodeId=7fbf18801e2e3, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Tue Oct 14 01:51:00 CST 2014, time=2014-10-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1930395, encodeId=07ff1930395bd, content=<a href='/topic/show?id=22f61180211' target=_blank style='color:#2F92EE;'>#miR#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11802, encryptionId=22f61180211, topicName=miR)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0a27288, createdName=smallant2002, createdTime=Wed Feb 18 06:51:00 CST 2015, time=2015-02-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1895736, encodeId=9a721895e36a6, content=<a href='/topic/show?id=4a391158248' target=_blank style='color:#2F92EE;'>#MET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11582, encryptionId=4a391158248, topicName=MET)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=18fc139, createdName=一闲, createdTime=Fri Jul 18 02:51:00 CST 2014, time=2014-07-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1793424, encodeId=a4a51e93424e9, content=<a href='/topic/show?id=d96c155e526' target=_blank style='color:#2F92EE;'>#RNA表达#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15575, encryptionId=d96c155e526, topicName=RNA表达)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=72bf2500198, createdName=小小小向日葵, createdTime=Sun Apr 26 23:51:00 CST 2015, time=2015-04-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1312261, encodeId=a7431312261cf, content=<a href='/topic/show?id=e5571193321' target=_blank style='color:#2F92EE;'>#miRNA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11933, encryptionId=e5571193321, topicName=miRNA)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e87d405, createdName=Homburg, createdTime=Sun Jul 13 22:51:00 CST 2014, time=2014-07-13, status=1, ipAttribution=)]
    2014-10-14 liye789132251
  2. [GetPortalCommentsPageByObjectIdResponse(id=1880172, encodeId=7fbf18801e2e3, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Tue Oct 14 01:51:00 CST 2014, time=2014-10-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1930395, encodeId=07ff1930395bd, content=<a href='/topic/show?id=22f61180211' target=_blank style='color:#2F92EE;'>#miR#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11802, encryptionId=22f61180211, topicName=miR)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0a27288, createdName=smallant2002, createdTime=Wed Feb 18 06:51:00 CST 2015, time=2015-02-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1895736, encodeId=9a721895e36a6, content=<a href='/topic/show?id=4a391158248' target=_blank style='color:#2F92EE;'>#MET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11582, encryptionId=4a391158248, topicName=MET)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=18fc139, createdName=一闲, createdTime=Fri Jul 18 02:51:00 CST 2014, time=2014-07-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1793424, encodeId=a4a51e93424e9, content=<a href='/topic/show?id=d96c155e526' target=_blank style='color:#2F92EE;'>#RNA表达#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15575, encryptionId=d96c155e526, topicName=RNA表达)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=72bf2500198, createdName=小小小向日葵, createdTime=Sun Apr 26 23:51:00 CST 2015, time=2015-04-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1312261, encodeId=a7431312261cf, content=<a href='/topic/show?id=e5571193321' target=_blank style='color:#2F92EE;'>#miRNA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11933, encryptionId=e5571193321, topicName=miRNA)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e87d405, createdName=Homburg, createdTime=Sun Jul 13 22:51:00 CST 2014, time=2014-07-13, status=1, ipAttribution=)]
    2015-02-18 smallant2002
  3. [GetPortalCommentsPageByObjectIdResponse(id=1880172, encodeId=7fbf18801e2e3, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Tue Oct 14 01:51:00 CST 2014, time=2014-10-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1930395, encodeId=07ff1930395bd, content=<a href='/topic/show?id=22f61180211' target=_blank style='color:#2F92EE;'>#miR#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11802, encryptionId=22f61180211, topicName=miR)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0a27288, createdName=smallant2002, createdTime=Wed Feb 18 06:51:00 CST 2015, time=2015-02-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1895736, encodeId=9a721895e36a6, content=<a href='/topic/show?id=4a391158248' target=_blank style='color:#2F92EE;'>#MET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11582, encryptionId=4a391158248, topicName=MET)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=18fc139, createdName=一闲, createdTime=Fri Jul 18 02:51:00 CST 2014, time=2014-07-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1793424, encodeId=a4a51e93424e9, content=<a href='/topic/show?id=d96c155e526' target=_blank style='color:#2F92EE;'>#RNA表达#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15575, encryptionId=d96c155e526, topicName=RNA表达)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=72bf2500198, createdName=小小小向日葵, createdTime=Sun Apr 26 23:51:00 CST 2015, time=2015-04-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1312261, encodeId=a7431312261cf, content=<a href='/topic/show?id=e5571193321' target=_blank style='color:#2F92EE;'>#miRNA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11933, encryptionId=e5571193321, topicName=miRNA)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e87d405, createdName=Homburg, createdTime=Sun Jul 13 22:51:00 CST 2014, time=2014-07-13, status=1, ipAttribution=)]
    2014-07-18 一闲
  4. [GetPortalCommentsPageByObjectIdResponse(id=1880172, encodeId=7fbf18801e2e3, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Tue Oct 14 01:51:00 CST 2014, time=2014-10-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1930395, encodeId=07ff1930395bd, content=<a href='/topic/show?id=22f61180211' target=_blank style='color:#2F92EE;'>#miR#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11802, encryptionId=22f61180211, topicName=miR)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0a27288, createdName=smallant2002, createdTime=Wed Feb 18 06:51:00 CST 2015, time=2015-02-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1895736, encodeId=9a721895e36a6, content=<a href='/topic/show?id=4a391158248' target=_blank style='color:#2F92EE;'>#MET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11582, encryptionId=4a391158248, topicName=MET)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=18fc139, createdName=一闲, createdTime=Fri Jul 18 02:51:00 CST 2014, time=2014-07-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1793424, encodeId=a4a51e93424e9, content=<a href='/topic/show?id=d96c155e526' target=_blank style='color:#2F92EE;'>#RNA表达#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15575, encryptionId=d96c155e526, topicName=RNA表达)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=72bf2500198, createdName=小小小向日葵, createdTime=Sun Apr 26 23:51:00 CST 2015, time=2015-04-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1312261, encodeId=a7431312261cf, content=<a href='/topic/show?id=e5571193321' target=_blank style='color:#2F92EE;'>#miRNA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11933, encryptionId=e5571193321, topicName=miRNA)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e87d405, createdName=Homburg, createdTime=Sun Jul 13 22:51:00 CST 2014, time=2014-07-13, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=1880172, encodeId=7fbf18801e2e3, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Tue Oct 14 01:51:00 CST 2014, time=2014-10-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1930395, encodeId=07ff1930395bd, content=<a href='/topic/show?id=22f61180211' target=_blank style='color:#2F92EE;'>#miR#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11802, encryptionId=22f61180211, topicName=miR)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0a27288, createdName=smallant2002, createdTime=Wed Feb 18 06:51:00 CST 2015, time=2015-02-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1895736, encodeId=9a721895e36a6, content=<a href='/topic/show?id=4a391158248' target=_blank style='color:#2F92EE;'>#MET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11582, encryptionId=4a391158248, topicName=MET)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=18fc139, createdName=一闲, createdTime=Fri Jul 18 02:51:00 CST 2014, time=2014-07-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1793424, encodeId=a4a51e93424e9, content=<a href='/topic/show?id=d96c155e526' target=_blank style='color:#2F92EE;'>#RNA表达#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15575, encryptionId=d96c155e526, topicName=RNA表达)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=72bf2500198, createdName=小小小向日葵, createdTime=Sun Apr 26 23:51:00 CST 2015, time=2015-04-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1312261, encodeId=a7431312261cf, content=<a href='/topic/show?id=e5571193321' target=_blank style='color:#2F92EE;'>#miRNA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11933, encryptionId=e5571193321, topicName=miRNA)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e87d405, createdName=Homburg, createdTime=Sun Jul 13 22:51:00 CST 2014, time=2014-07-13, status=1, ipAttribution=)]
    2014-07-13 Homburg

相关资讯

miRNA 靶基因预测介绍

miRNA主要通过与靶mRNA的结合,或促使mRNA降解,或阻碍其翻译,从而抑制目的基因的表达。用生物信息学方法准确快速地预测miRNA的靶基因,可以为研究miRNA功能提供线索。 植物miRNA 靶基因的预测比较简单, 因为在植物中miRNA与靶基因几乎以完全互补配对的方式结合, 预测时无需复杂的算法。 计算方法的预测主要依赖于已经验证的miRNA和靶基因间的结合的规律。主要原则有:

MicroRNA 与细胞信号通路的相互作用

 MicroRNA(miRNA),广泛存在于多种生物中,在基因表达调控的转录后水平上发挥着重要的调节作 用.细胞信号通路转导外界刺激进而引发一系列生理和病理效应,决定着细胞的功能和命运.而miRNA和细胞信号通路间的相互作用对于二者的功能发挥起着关 键作用,本文将从信号通路对miRNA的调控和miRNA对信号通路的调节两方面综述二者的相互作用,揭示整合miRNA的细胞信号通路及其生物

CLIP-seq—动物miRNA靶基因筛选新方法

CLIP-seq,即紫外交联免疫沉淀结合高通量测序(crosslinking-immunprecipitation and high-throughput sequencing),是一项在全基因组水平揭示RNA分子与RNA结合蛋白相互作用的革命性技术。其主要原理是基于RNA分子与RNA结合蛋白在紫外 照射下发生耦联,以RNA结合蛋白的特异性抗体将RNA-蛋白质复合体沉淀之后,回收其中的RNA

JBC:中国医学科学院解析抑癌miRNA

来自中国医学科学院的研究人员在新研究中证实,miRNA-200b通过影响Pin1的表达控制了失巢凋亡(anoikis),且miRNA-200b的表达受到两个ETS家族成员PEA3和ELK-1的调控。这些研究发现在线发表在9月26日的《生物化学杂志》(JBC)上   【原文下载】 论文的通讯作者是中国医学科学院北京协和医学院的刘志华(Zhihua Liu)博士。其回国前曾在美国

Genome Biol:乳腺癌中DNA甲基化和拷贝数改变调控miRNA异常表达

   挪威奥斯陆大学等机构的研究人员对乳腺癌队列人群进行分析,揭示了DNA甲基化和拷贝数改变对microRNA表达的影响,从而为乳腺癌中miRNA失调背后的机制提供了新证据。这项研究成果于11月20日发表在Genome Biology上。   microRNA(miRNA)是一类小的非编码RNA分子,它通过控制mRNA稳定性和翻译而在转录后水平上调控基因表达。之前的研究

JBC:邬振国教授解析横纹肌肉瘤抑癌miRNA

来自深圳北京大学香港科技大学医学中心、香港科技大学的研究人员证实,在横纹肌肉瘤中miR-203常常下调,其再表达可以抑制横纹肌肉瘤的生长和转移,促进其终末分化,表明miR-203是横纹肌肉瘤一个有潜力的治疗靶点。相关论文发表在11月18日的《生物化学杂志》(JBC)上。 【原文下载】 文章的通讯作者是任职于深圳北京大学香港科技大学医学中心和香港科技大学的邬振