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The Biogenesis, Functions, and Challenges of Circular RNAs

Open access
Li, Xiang, Yang, Li, Chen, Ling-Ling·2018·Molecular Cell

Abstract

Covalently closed circular RNAs (circRNAs) are produced by precursor mRNA back-splicing of exons of thousands of genes in eukaryotes. circRNAs are generally expressed at low levels and often exhibit cell-type-specific and tissue-specific patterns. Recent studies have shown that their biogenesis requires spliceosomal machinery and can be modulated by both cis complementary sequences and protein factors. The functions of most circRNAs remain largely unexplored, but known functions include sequestration of microRNAs or proteins, modulation of transcription and interference with splicing, and even translation to produce polypeptides. However, challenges exist at multiple levels to understanding of the regulation of circRNAs because of their circular conformation and sequence overlap with linear mRNA counterparts. In this review, we survey the recent progress on circRNA biogenesis and function and discuss technical obstacles in circRNA studies.

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Metadata

Authors
Li, X., Yang, L., & Chen, L.-L.
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2018-08
Volume
71
Issue
3
Pages
428-442
ISSN
1097-2765 (ISSN-L)
OpenAlex
W2883062882
Cited by
2,062
References
19
FWCI
75.65
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: The Biogenesis, Functions, and Challenges of Circular RNAs. https://app.cochat.ai/papers/10.1016/j.molcel.2018.06.034
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Li, X., Yang, L., & Chen, L.-L. (2018). The Biogenesis, Functions, and Challenges of Circular RNAs. Molecular Cell. https://doi.org/10.1016/j.molcel.2018.06.034

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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