Biological roles and potential clinical values of circular RNAs in gastrointestinal malignancies.

Biological roles and potential clinical values of circular RNAs in gastrointestinal malignancies.
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环状RNA在胃肠道恶性肿瘤中的生物学作用和潜在临床价值

DOI:
10.20892/j.issn.2095-3941.2020.0348
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发表时间:
2021-03-12
影响因子:
5.5
通讯作者:
Guo J
Guo J
中科院分区:
医学2区
文献类型:
--
作者:
Tao X;Shao Y;Yan J;Yang L;Ye Q;Wang Q;Lu R;Guo J

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环状RNA(circular RNA,circRNA)是一类内源性RNA分子,通过前体RNA的选择性剪接产生,并在5′和3′端共价连接。近年来研究发现,circRNA表达异常与胃肠道恶性肿瘤的发生、发展密切相关。越来越多的证据表明,circRNA,包括circPVT 1、circLARP 4、circ-SFMBT 2、circ-ITCH、circRNA_100782、circ_100395、circ-DONSON、hsa_circ_0001368、circNRIP 1、circFAT 1(e2)、circCCDC 66、circSMARCA 5、circ-ZNF 652和circ_0030235,在细胞增殖、分化、侵袭、通过多种机制,如充当microRNA海绵、与RNA结合蛋白相互作用、调节基因转录和选择性剪接以及被翻译成蛋白质,参与癌细胞的转移。circRNA具有高丰度、高稳定性、功能广泛、表达具有组织特异性、时间特异性和疾病特异性等特点,有望为胃肠道恶性肿瘤的诊断和治疗提供新的前景。
Circular RNAs (circRNAs), a class of endogenous RNA molecules, are produced by alternative splicing of precursor RNA and are covalently linked at the 5′ and 3′ ends. Recent studies have revealed that dysregulated circRNAs are closely related to the occurrence and progression of gastrointestinal malignancies. Accumulating evidence indicates that circRNAs, including circPVT1, circLARP4, circ-SFMBT2, cir-ITCH, circRNA_100782, circ_100395, circ-DONSON, hsa_circ_0001368, circNRIP1, circFAT1(e2), circCCDC66, circSMARCA5, circ-ZNF652, and circ_0030235 play important roles in the proliferation, differentiation, invasion, and metastasis of cancer cells through a variety of mechanisms, such as acting as microRNA sponges, interacting with RNA-binding proteins, regulating gene transcription and alternative splicing, and being translated into proteins. With the characteristics of high abundance, high stability, extensive functions, and certain tissue-, time- and disease-specific expressions, circRNAs are expected to provide novel perspectives for the diagnoses and treatments of gastrointestinal malignancies.
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