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- Publisher Website: 10.3389/fcell.2021.616835
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Article: Cleavage and Polyadenylation Specific Factor 1 Promotes Tumor Progression via Alternative Polyadenylation and Splicing in Hepatocellular Carcinoma
Title | Cleavage and Polyadenylation Specific Factor 1 Promotes Tumor Progression via Alternative Polyadenylation and Splicing in Hepatocellular Carcinoma |
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Authors | |
Keywords | hepatocellular carcinoma alternative polyadenylation cleavage and polyadenylation specific factor 1 cleavage and polyadenylation alternative splicing |
Issue Date | 2021 |
Publisher | Frontiers Research Foundation. The Journal's web site is located at https://www.frontiersin.org/journals/cell-and-developmental-biology |
Citation | Frontiers in Cell and Developmental Biology, 2021, v. 9, p. article no. 616835 How to Cite? |
Abstract | Alternative polyadenylation (APA) is an important post-transcriptional regulatory mechanism required for cleavage and polyadenylation (CPA) of the 3′ untranslated region (3′ UTR) of mRNAs. Several aberrant APA events have been reported in hepatocellular carcinoma (HCC). However, the regulatory mechanisms underlying APA remain unclear. In this study, we found that the expression of cleavage and polyadenylation specific factor 1 (CPSF1), a major component of the CPA complex, was significantly increased in HCC tissues and correlated with unfavorable survival outcomes. Knockdown of CPSF1 inhibited HCC cell proliferation and migration, whereas overexpression of CPSF1 caused the opposite effect. Based on integrative analysis of Iso-Seq and RNA-seq data from HepG2.2.15 cells, we identified a series of transcripts with differential 3′ UTR lengths following the knockdown of CPSF1. These transcripts were related to the biological functions of gene transcription, cytoskeleton maintenance, and endomembrane system transportation. Moreover, knockdown of CPSF1 induced an increase in alternative splicing (AS) events in addition to APA. Taken together, this study provides new insights into our understanding of the post-transcriptional regulatory mechanisms in HCC and implies that CPSF1 may be a potential prognostic biomarker and therapeutic target for HCC. |
Persistent Identifier | http://hdl.handle.net/10722/300923 |
ISSN | 2023 Impact Factor: 4.6 2023 SCImago Journal Rankings: 1.576 |
PubMed Central ID | |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Chen, SL | - |
dc.contributor.author | Zhu, ZX | - |
dc.contributor.author | Yang, X | - |
dc.contributor.author | Liu, L | - |
dc.contributor.author | He, YF | - |
dc.contributor.author | Yang, MM | - |
dc.contributor.author | Guan, X | - |
dc.contributor.author | Wang, X | - |
dc.contributor.author | Yun, JP | - |
dc.date.accessioned | 2021-07-06T03:12:06Z | - |
dc.date.available | 2021-07-06T03:12:06Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Frontiers in Cell and Developmental Biology, 2021, v. 9, p. article no. 616835 | - |
dc.identifier.issn | 2296-634X | - |
dc.identifier.uri | http://hdl.handle.net/10722/300923 | - |
dc.description.abstract | Alternative polyadenylation (APA) is an important post-transcriptional regulatory mechanism required for cleavage and polyadenylation (CPA) of the 3′ untranslated region (3′ UTR) of mRNAs. Several aberrant APA events have been reported in hepatocellular carcinoma (HCC). However, the regulatory mechanisms underlying APA remain unclear. In this study, we found that the expression of cleavage and polyadenylation specific factor 1 (CPSF1), a major component of the CPA complex, was significantly increased in HCC tissues and correlated with unfavorable survival outcomes. Knockdown of CPSF1 inhibited HCC cell proliferation and migration, whereas overexpression of CPSF1 caused the opposite effect. Based on integrative analysis of Iso-Seq and RNA-seq data from HepG2.2.15 cells, we identified a series of transcripts with differential 3′ UTR lengths following the knockdown of CPSF1. These transcripts were related to the biological functions of gene transcription, cytoskeleton maintenance, and endomembrane system transportation. Moreover, knockdown of CPSF1 induced an increase in alternative splicing (AS) events in addition to APA. Taken together, this study provides new insights into our understanding of the post-transcriptional regulatory mechanisms in HCC and implies that CPSF1 may be a potential prognostic biomarker and therapeutic target for HCC. | - |
dc.language | eng | - |
dc.publisher | Frontiers Research Foundation. The Journal's web site is located at https://www.frontiersin.org/journals/cell-and-developmental-biology | - |
dc.relation.ispartof | Frontiers in Cell and Developmental Biology | - |
dc.rights | This Document is Protected by copyright and was first published by Frontiers. All rights reserved. It is reproduced with permission. | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | hepatocellular carcinoma | - |
dc.subject | alternative polyadenylation | - |
dc.subject | cleavage and polyadenylation specific factor 1 | - |
dc.subject | cleavage and polyadenylation | - |
dc.subject | alternative splicing | - |
dc.title | Cleavage and Polyadenylation Specific Factor 1 Promotes Tumor Progression via Alternative Polyadenylation and Splicing in Hepatocellular Carcinoma | - |
dc.type | Article | - |
dc.identifier.email | Guan, X: xyguan@hku.hk | - |
dc.identifier.authority | Guan, X=rp00454 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.3389/fcell.2021.616835 | - |
dc.identifier.pmid | 33748106 | - |
dc.identifier.pmcid | PMC7969726 | - |
dc.identifier.scopus | eid_2-s2.0-85102892405 | - |
dc.identifier.hkuros | 323255 | - |
dc.identifier.volume | 9 | - |
dc.identifier.spage | article no. 616835 | - |
dc.identifier.epage | article no. 616835 | - |
dc.identifier.isi | WOS:000630012500001 | - |
dc.publisher.place | Switzerland | - |