目的探讨RTN4基因(54972187-55137831)外显子区9个目的片段拷贝数变异(copy number variant,CNV)与鼻咽癌的相关性研究。方法采用多重基因拷贝数检测技术(Accu Copy TM)对179例鼻咽癌样本和200例健康体检者样本进行RTN4基因外显子区9个...目的探讨RTN4基因(54972187-55137831)外显子区9个目的片段拷贝数变异(copy number variant,CNV)与鼻咽癌的相关性研究。方法采用多重基因拷贝数检测技术(Accu Copy TM)对179例鼻咽癌样本和200例健康体检者样本进行RTN4基因外显子区9个目的片段拷贝数检测,观察两组样本基因拷贝数变异情况,运用数理统计比较两组拷贝数分布的差异性。结果鼻咽癌患者和健康体检者的RTN4基因外显子区的拷贝数主要以2个拷贝为主,经分析发现这两组的拷贝数比较差异无统计学意义(P均>0.05)。结论 RTN4基因(54972187-55137831)外显子区拷贝数变异可能与鼻咽癌发生发展无相关性。展开更多
RTNs (reticulons) is a gene family related to the growth and differentiation of neuroendocrine cell. This family is composed of several members such as RTN1, RTN2ar\d RTN3. RTN1 and RTN2 have been proved to have 3 tra...RTNs (reticulons) is a gene family related to the growth and differentiation of neuroendocrine cell. This family is composed of several members such as RTN1, RTN2ar\d RTN3. RTN1 and RTN2 have been proved to have 3 transcripts with different length. Because the RTN1c cDNA was involved in the sologenesis of small cell lung carcinoma (SCLC), it was selected as a bioinformatic probe to clone novel members of RTN family with the electric hybridization assistant new-gene cloning method (EHAC). A 1677-bp cDNA was identified from human brain cDNA library. The cDNA contains an intact open reading frame (ORF) which encodes a protein of 199 amino acids. This deduced protein is highly homologous to RTN1c, RTN2c and RTN3 with identities of 64.4%, 45.8% and 50.0% respectively. This new gene was named RTN4c (GenBank accession number: AF087901). Northern hybridization showed that the full length of RTN4c transcript is about 1.8 kb. It is hardly expressed in heart, placenta, lung, spleen, thymus, testis, ovary, small展开更多
文摘RTNs (reticulons) is a gene family related to the growth and differentiation of neuroendocrine cell. This family is composed of several members such as RTN1, RTN2ar\d RTN3. RTN1 and RTN2 have been proved to have 3 transcripts with different length. Because the RTN1c cDNA was involved in the sologenesis of small cell lung carcinoma (SCLC), it was selected as a bioinformatic probe to clone novel members of RTN family with the electric hybridization assistant new-gene cloning method (EHAC). A 1677-bp cDNA was identified from human brain cDNA library. The cDNA contains an intact open reading frame (ORF) which encodes a protein of 199 amino acids. This deduced protein is highly homologous to RTN1c, RTN2c and RTN3 with identities of 64.4%, 45.8% and 50.0% respectively. This new gene was named RTN4c (GenBank accession number: AF087901). Northern hybridization showed that the full length of RTN4c transcript is about 1.8 kb. It is hardly expressed in heart, placenta, lung, spleen, thymus, testis, ovary, small