The invention belongs to the technical field of tumor molecular biology, in particular to a cyclic RNA circ_2157 and its application in the preparation of nasopharyngeal cancer diagnostic preparations and corresponding preparations. The present invention collects many nasopharyngeal carcinoma tissues and normal inflammatory nasopharyngeal epithelial tissues, and detects the expression of circ_2157 by qRT_PCR technology. The results showed that compared with 12 normal inflammatory nasopharyngeal epithelial tissues, circ_2157 was highly expressed in 29 nasopharyngeal carcinoma tissues. The expression level of circ_2157 in nasopharyngeal carcinoma group was about five times higher than that in normal inflammatory nasopharyngeal epithelial tissues. The difference between the two groups was statistically significant (P=0.0279). Therefore, circRNA and circ_2157 are highly expressed in nasopharyngeal carcinoma. circ_2157 may play an important biological role in the occurrence and development of nasopharyngeal carcinoma and can be used as a molecular marker for the diagnosis of nasopharyngeal carcinoma.
【技术实现步骤摘要】
circ_2157及其在制备鼻咽癌诊断制剂中的应用和诊断试剂
本专利技术属于肿瘤分子生物学
,具体涉及一种环状RNAcirc_2157及其在制备鼻咽癌诊断制剂中的应用和相应的制剂。
技术介绍
目前环状RNA(CircularRNA)是个研究热点,circRNA主要来源于蛋白质编码基因的外显子区,也可以由内含子区、UTR区、基因间区、非编码RNA位点及已知转录物的反义位点形成。CircRNA是由前体mRNA(precursormessengerRNA,pre-mRNA)反向拼接而形成的一类不具有5‘末端帽子和3’末端poly(A)尾巴并以共价键形成环形结构的非编码RNA分子。CircRNA形成过程可以分为两大类,即外显子环化(exoncircularization)和内含子环化(introncircularization)两大机制。Jeck等提出外显子来源的circRNA(exoniccircRNA,ecircRNA)可以分为套索驱动环化(lariat-drivencircularization)和内含子配对驱动环化(intron-pairing-drivencircularization)两种形成方式,套索驱动环化是外显子3’端作为剪接供体(splicedonor)攻击5’端剪接受体(splicereceptor),Alu区共价结合而形成套索结构,套索结构进行内部拼接后切除内含子形成circRNA;内含子配对驱动环化是两个内含子碱基互补配对形成环状结构后,剪除内含子形成circRNA。其实内含子本身也可以环化,可以形成内含子来源circRNA(cir ...
【技术保护点】
1.一种环状RNA circ_2157,序列如SEQ ID NO.1所示。
【技术特征摘要】
1.一种环状RNAcirc_2157,序列如SEQIDNO.1所示。2.检测权利要求1所述的环状RNAcirc_2157的试剂在制备诊断鼻咽癌工具上的应用。3.根据权利要求2所述的应用,其特征在于,所述的检测权利要求1所述的环状RNAcirc_2157的试剂为PCR试剂。4.根据权利要求3所述的应用,其特征在于,所述的检测权利要求1所述的环状RNAcirc_2157的试剂为PCR实时定量检测试剂。5.根据权利要求3所述的应用,其特征在于,所述的PCR试剂中的引物为:上游引物:5’-GTCGGAGCTTTATTGGGCC-3’;下游引物:5’-ATAGCCTTTCCACCGAACCA-3’。6.根据权利要求3所述的应用,其特征在于,所述的PCR试剂中的β-actin内参引物为:上游引物:5’-TCACCAACTGGGA...
【专利技术属性】
技术研发人员:熊炜,曾朝阳,郭灿,王忆安,李桂源,李小玲,王裕民,莫勇真,周艳宏,李征,龚朝建,张姗姗,
申请(专利权)人:中南大学,
类型:发明
国别省市:湖南,43
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