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Jin C, Xiong D, Li HR, Jiang JH, Qi JC, Ding JY. Loss of UHRF2 Is Associated With Non-small Cell Lung Carcinoma Progression. J Cancer 2018; 9:2994-3005. [PMID: 30210621 PMCID: PMC6134831 DOI: 10.7150/jca.25876] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Accepted: 06/09/2018] [Indexed: 01/12/2023] Open
Abstract
Recent evidence indicated ubiquitin like with PHD and ring finger domains 2 (UHRF2) was involved in various human diseases, especially in cancer, however, its roles in cancer are still in dispute. Here, we found UHRF2 expression was decreased in lung cancer tissues compared with adjacent normal tissues by referring to the Oncomine Database, which was further identified by immunoblotting and quantitative real-time polymerase chain reaction assays. Secondly, we found knockdown of UHRF2 in A549 and 95-D cell lines enhanced the capability of proliferation, invasion and migration, while forced UHRF2 expression inhibited NSCLC cells proliferation,invasion and migration. Mechanistically, dot-blot and western blot assays indicated that the level of UHRF2 was positively correlated with 5-hmC level by affecting ten-eleven translocation 2 (TET2) expression. Clinically, UHRF2 downregulation is significantly correlated with a malignant phenotype, including larger tumor size and poor differentiation. Moreover, UHRF2 downregulated correlates with shorter overall survival(OS). Conclusion: Our findings indicate that UHRF2 is a tumor suppressor in NSCLC by influence TET2 expression and serve as a potential therapeutic target in NSCLC.
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Affiliation(s)
- Chun Jin
- Department of Thoracic Surgery, The Affiliated Zhongshan Hospital of Fudan University, Shanghai 200032, P. R. China
| | - Dian Xiong
- Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Nanchang University, Jiangxi Province 330000, P. R. China
| | - Hao-Ran Li
- Department of Thoracic Surgery, The Affiliated Zhongshan Hospital of Fudan University, Shanghai 200032, P. R. China
| | - Jia-Hao Jiang
- Department of Thoracic Surgery, The Affiliated Zhongshan Hospital of Fudan University, Shanghai 200032, P. R. China
| | - Jian-Chao Qi
- Department of emergency surgery, Fujian Provincial Hospital, Fu Zhou, Fujian Province,350001, China
| | - Jian-Yong Ding
- Department of Thoracic Surgery, The Affiliated Zhongshan Hospital of Fudan University, Shanghai 200032, P. R. China
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Moreira FC, Assumpção M, Hamoy IG, Darnet S, Burbano R, Khayat A, Gonçalves AN, Alencar DO, Cruz A, Magalhães L, Araújo Jr. W, Silva A, Santos S, Demachki S, Assumpção P, Ribeiro-dos-Santos Â. MiRNA expression profile for the human gastric antrum region using ultra-deep sequencing. PLoS One 2014; 9:e92300. [PMID: 24647245 PMCID: PMC3960242 DOI: 10.1371/journal.pone.0092300] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 02/20/2014] [Indexed: 12/25/2022] Open
Abstract
Background MicroRNAs are small non-coding nucleotide sequences that regulate gene expression. These structures are fundamental to several biological processes, including cell proliferation, development, differentiation and apoptosis. Identifying the expression profile of microRNAs in healthy human gastric antrum mucosa may help elucidate the miRNA regulatory mechanisms of the human stomach. Methodology/Principal Findings A small RNA library of stomach antrum tissue was sequenced using high-throughput SOLiD sequencing technology. The total read count for the gastric mucosa antrum region was greater than 618,000. After filtering and aligning using with MirBase, 148 mature miRNAs were identified in the gastric antrum tissue, totaling 3,181 quality reads; 63.5% (2,021) of the reads were concentrated in the eight most highly expressed miRNAs (hsa-mir-145, hsa-mir-29a, hsa-mir-29c, hsa-mir-21, hsa-mir-451a, hsa-mir-192, hsa-mir-191 and hsa-mir-148a). RT-PCR validated the expression profiles of seven of these highly expressed miRNAs and confirmed the sequencing results obtained using the SOLiD platform. Conclusions/Significance In comparison with other tissues, the antrum’s expression profile was unique with respect to the most highly expressed miRNAs, suggesting that this expression profile is specific to stomach antrum tissue. The current study provides a starting point for a more comprehensive understanding of the role of miRNAs in the regulation of the molecular processes of the human stomach.
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Affiliation(s)
| | - Monica Assumpção
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brasil
- Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, PA, Brasil
| | - Igor G. Hamoy
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brasil
- Universidade Federal Rural da Amazônia, Capanema, PA, Brasil
| | - Sylvain Darnet
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brasil
| | - Rommel Burbano
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brasil
- Núcleo de Pesquisa em Oncologia, Universidade Federal do Pará, Belém, PA, Brasil
| | - André Khayat
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brasil
- Núcleo de Pesquisa em Oncologia, Universidade Federal do Pará, Belém, PA, Brasil
| | | | - Dayse O. Alencar
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brasil
| | - Aline Cruz
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brasil
- Secretaria Estadual de Saúde do Estado do Pará, Belém, PA, Brasil
| | - Leandro Magalhães
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brasil
| | - Wilson Araújo Jr.
- Centro Regional de Hemoterapia, Faculdade Medicina Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Artur Silva
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brasil
| | - Sidney Santos
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brasil
- Núcleo de Pesquisa em Oncologia, Universidade Federal do Pará, Belém, PA, Brasil
| | - Samia Demachki
- Núcleo de Pesquisa em Oncologia, Universidade Federal do Pará, Belém, PA, Brasil
- Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, PA, Brasil
| | - Paulo Assumpção
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brasil
- Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, PA, Brasil
| | - Ândrea Ribeiro-dos-Santos
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brasil
- Núcleo de Pesquisa em Oncologia, Universidade Federal do Pará, Belém, PA, Brasil
- * E-mail:
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Oh Y, Chung KC. UHRF2, a ubiquitin E3 ligase, acts as a small ubiquitin-like modifier E3 ligase for zinc finger protein 131. J Biol Chem 2013; 288:9102-11. [PMID: 23404503 DOI: 10.1074/jbc.m112.438234] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Small ubiquitin-like modifier (SUMO), a member of the ubiquitin-related protein family, is covalently conjugated to lysine residues of its substrates in a process referred to as SUMOylation. SUMOylation occurs through a series of enzymatic reactions analogous to that of the ubiquitination pathway, resulting in modification of the biochemical and functional properties of substrates. To date, four mammalian SUMO isoforms, a single heterodimeric SUMO-activating E1 enzyme SAE1/SAE2, a single SUMO-conjugating E2 enzyme ubiquitin-conjugating enzyme E2I (UBC9), and a few subgroups of SUMO E3 ligases have been identified. Several SUMO E3 ligases such as topoisomerase I binding, arginine/serine-rich (TOPORS), TNF receptor-associated factor 7 (TRAF7), and tripartite motif containing 27 (TRIM27) have dual functions as ubiquitin E3 ligases. Here, we demonstrate that the ubiquitin E3 ligase UHRF2 also acts as a SUMO E3 ligase. UHRF2 effectively enhances zinc finger protein 131 (ZNF131) SUMOylation but does not enhance ZNF131 ubiquitination. In addition, the SUMO E3 activity of UHRF2 on ZNF131 depends on the presence of SET and RING finger-associated and nuclear localization signal-containing region domains, whereas the critical ubiquitin E3 activity RING domain is dispensable. Our findings suggest that UHRF2 has independent functional domains and regulatory mechanisms for these two distinct enzymatic activities.
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Affiliation(s)
- Yohan Oh
- Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, Seoul 120-749, Korea
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