With the development of deep sequencing and bioinformatics technology, a large number of products produced by abnormal RNA splicing, such as chimeric RNA and chimeric/fusion proteins, have been discovered. Natural chi...With the development of deep sequencing and bioinformatics technology, a large number of products produced by abnormal RNA splicing, such as chimeric RNA and chimeric/fusion proteins, have been discovered. Natural chimeric/fusion genes are new genes formed by natural fusion of two or more independent genes. Chimeric RNAs can be transcribed by natural chimeric genes, and can also be formed by cis-splicing or trans-splicing of two or more precursor mRNAs. Unlike fusion genes, the production of chimeric RNAs does not involve changes in the DNA level of chromosomes. At first, chimeric RNAs were found as tumor markers. With the deepening of research, researchers also found a large number of chimeric RNAs in normal tissues. From the perspective of biological function, chimeric RNAs can play a biological role in regulating the expression of corresponding maternal genes, translating into chimeric proteins, and forming long non-coding RNAs. The objective of the present study focused on the frontiers of chimeric RNA and reviewed its role in health and tumor study to reveal research progress of chimeric RNA and health and provide a new sight of relative disease treatment. The main conclusion of this review is that chimeric RNA may serve as a biomarker for specific tumor diagnose and treatment while its role in normal physiology needs to be revealed.展开更多
研究前期鉴定一个嵌合子标签——BCL2L2CR,含有B细胞淋巴瘤/白血病-2样蛋白2(B-cell CLL/lymphoma 2 like protein 2,BCL2L2)重复序列,为分析BCL2L2CR作用,利用RT-PCR方法克隆其cDNA序列,采用流式细胞术、过表达、CCK-8和细胞划痕试验...研究前期鉴定一个嵌合子标签——BCL2L2CR,含有B细胞淋巴瘤/白血病-2样蛋白2(B-cell CLL/lymphoma 2 like protein 2,BCL2L2)重复序列,为分析BCL2L2CR作用,利用RT-PCR方法克隆其cDNA序列,采用流式细胞术、过表达、CCK-8和细胞划痕试验等分子生物学技术分析其对细胞凋亡、增殖和迁移的影响。发现BCL2L2CR是BCL2L2外显子3部分序列发生顺式重复形成,前141个氨基酸与BCL2L2完全相同,含有BCL2同源结构域4、3和1,缺少同源结构域2;BCL2L2CR促进PK-15和3T3L细胞增殖和迁移。研究结果确定嵌合RNA BCL2L2CR具有一定功能,将为深入揭示BCL2L2CR功能提供基础,有助于进一步认识嵌合RNAs及其在正常生理活动中的作用。展开更多
文摘With the development of deep sequencing and bioinformatics technology, a large number of products produced by abnormal RNA splicing, such as chimeric RNA and chimeric/fusion proteins, have been discovered. Natural chimeric/fusion genes are new genes formed by natural fusion of two or more independent genes. Chimeric RNAs can be transcribed by natural chimeric genes, and can also be formed by cis-splicing or trans-splicing of two or more precursor mRNAs. Unlike fusion genes, the production of chimeric RNAs does not involve changes in the DNA level of chromosomes. At first, chimeric RNAs were found as tumor markers. With the deepening of research, researchers also found a large number of chimeric RNAs in normal tissues. From the perspective of biological function, chimeric RNAs can play a biological role in regulating the expression of corresponding maternal genes, translating into chimeric proteins, and forming long non-coding RNAs. The objective of the present study focused on the frontiers of chimeric RNA and reviewed its role in health and tumor study to reveal research progress of chimeric RNA and health and provide a new sight of relative disease treatment. The main conclusion of this review is that chimeric RNA may serve as a biomarker for specific tumor diagnose and treatment while its role in normal physiology needs to be revealed.
文摘研究前期鉴定一个嵌合子标签——BCL2L2CR,含有B细胞淋巴瘤/白血病-2样蛋白2(B-cell CLL/lymphoma 2 like protein 2,BCL2L2)重复序列,为分析BCL2L2CR作用,利用RT-PCR方法克隆其cDNA序列,采用流式细胞术、过表达、CCK-8和细胞划痕试验等分子生物学技术分析其对细胞凋亡、增殖和迁移的影响。发现BCL2L2CR是BCL2L2外显子3部分序列发生顺式重复形成,前141个氨基酸与BCL2L2完全相同,含有BCL2同源结构域4、3和1,缺少同源结构域2;BCL2L2CR促进PK-15和3T3L细胞增殖和迁移。研究结果确定嵌合RNA BCL2L2CR具有一定功能,将为深入揭示BCL2L2CR功能提供基础,有助于进一步认识嵌合RNAs及其在正常生理活动中的作用。
