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Guo J, Tong J, Zheng J. Circular RNAs: A Promising Biomarker for Endometrial Cancer. Cancer Manag Res 2021; 13:1651-1665. [PMID: 33633465 PMCID: PMC7901565 DOI: 10.2147/cmar.s290975] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 01/19/2021] [Indexed: 01/06/2023] Open
Abstract
Endometrial cancer (EC) is one of the most common malignant tumors of the female reproductive tract. EC patients have high morbidity and mortality rates and remain an important cause of cancer-related morbidity and mortality worldwide. More and more studies have shown that a large number of non-coding RNAs (such as microRNAs and long non-coding RNAs) are associated with the occurrence of diseases. Circular RNAs (circRNAs) is an endogenous non-coding RNA. It has a unique covalent structure. Many studies in recent years have found circRNAs differential expression in a variety of tumor tissues compared to matched normal tissues. In endometrial carcinoma, there also are multiple circRNAs differentially expressed and therefore circRNAs perhaps can be used as a diagnostic and prognosis biomarkers of EC. In this review, we described the biogenesis, function and characteristics of circRNAs, and the circRNAs with potential influence and clinical significance on the development of EC were summarized. Adenocarcinoma is the most common form of EC, so this review focuses on endometrioid adenocarcinoma.
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Affiliation(s)
- Jialu Guo
- Department of the Fourth Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310008, People's Republic of China.,Department of Obstetrics and Gynecology, Hangzhou Women's Hospital (Hangzhou Maternity and Child Health Care Hospital), Hangzhou, Zhejiang Province, 310008, People's Republic of China
| | - Jinyi Tong
- Department of the Fourth Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310008, People's Republic of China.,Department of Obstetrics and Gynecology, Hangzhou Women's Hospital (Hangzhou Maternity and Child Health Care Hospital), Hangzhou, Zhejiang Province, 310008, People's Republic of China
| | - Jianfeng Zheng
- Department of Obstetrics and Gynecology, Hangzhou Women's Hospital (Hangzhou Maternity and Child Health Care Hospital), Hangzhou, Zhejiang Province, 310008, People's Republic of China.,Department of Obstetrics and Gynecology, Affiliated Hangzhou Hospital, Nanjing Medical University, Hangzhou, Zhejiang Province, 310008, People's Republic of China
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Sheng S, Jiwen W, Dexiang Z, Bohao Z, Yueqi W, Han L, Xiaoling N, Tao S, Liu H. DMBT1 suppresses progression of gallbladder carcinoma through PI3K/AKT signaling pathway by targeting PTEN. Biosci Biotechnol Biochem 2019; 83:2257-2264. [PMID: 31411121 DOI: 10.1080/09168451.2019.1654361] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
ABSTRACT
Gallbladder carcinoma (GBC) is a highly lethal malignancy of the gastrointestinal tract. Despite extensive research, the underlying molecular mechanism of GBC remains largely unclear. Deleted in malignant brain tumors 1 (DMBT1) is low-expression during cancer progression and as a potential tumor-suppressor gene in various types of cancer. However, its role in Gallbladder cancer remains poorly understood. Here, we found that DMBT1 was significantly low-expression and deletion of copy number in GBC tissues by qRT-PCR and Western blot. Overexpression of DMBT1 impaired survival, promoted apoptosis in GBC cells in vitro, and inhibited tumor progression in vivo. Further study of underlying mechanisms demonstrated that DMBT1 combined with PTEN which could stabilize PTEN protein, resulting in inhibiting the activation of PI3K/AKT signaling pathway. Our study revealed a new sight of DMBT1 as a tumor-suppressor gene on the PI3K/AKT pathway in GBC, which may be a potential therapeutic target for improving treatment.
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Affiliation(s)
- Shen Sheng
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wang Jiwen
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhang Dexiang
- Department of General Surgery, Zhongshan-Xuhui Hospital Affiated to Fudan University, Shanghai, China
| | - Zheng Bohao
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wang Yueqi
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Liu Han
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ni Xiaoling
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Suo Tao
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Houbao Liu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
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Du Z, Xia Q, Wu B, Ding J, Zhao Y, Lin L, Chen M, Cai Z, Wang S, Xu L, Li E, Wu Z, Li Y, Xu H, Yin D. The analyses of SRCR genes based on protein-protein interaction network in esophageal squamous cell carcinoma. Am J Transl Res 2019; 11:2683-2705. [PMID: 31217847 PMCID: PMC6556668 DOI: pmid/31217847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 04/29/2019] [Indexed: 02/05/2023]
Abstract
The scavenger receptor cysteine-rich (SRCR) proteins, with one to several SRCR domains, play important roles in human diseases. A full view of their functions in esophageal squamous cell carcinoma (ESCC) remain unclear. Sequence alignment and phylogenetic tree for all human SRCR domains were performed. Differentially-expressed SRCR genes were identified in ESCC, followed by protein-protein interaction (PPI) network construction, topological parameters, subcellular distribution, functional enrichment and survival analyses. The variation of conserved cysteines in each SRCR domain suggested a requirement for new classification of the SRCR family. Six genes (LGALS3BP, MSR1, CD163, LOXL2, LOXL3 and LOXL4) were upregulated, and four genes (DMBT1, PRSS12, TMPRSS2 and SCARA5) were downregulated in ESCC. These 10 SRCR genes form a unique biological network. Functional enrichment analyses provided important clues to investigate the biological functions for SRCR gene network in ESCC, such as extracellular structure organization and the PI3K-Akt signaling pathway. Kaplan-Meier curves confirmed that high expression of SCARA5, LOXL2, LOXL3, LOXL4 were related to poor survival, whereas high expression of DMBTI and PRSS12 showed the opposite result. SRCR genes promote the development of ESCC through its network and could serve as potential prognostic factors and therapy targets of ESCC.
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Affiliation(s)
- Zepeng Du
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Genes Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityGuangzhou 510120, China
- Department of Pathology, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen UniversityShantou 515041, China
| | - Qiaoxi Xia
- Department of Biochemistry and Molecular Biology, Shantou University Medical CollegeShantou 515041, China
| | - Bingli Wu
- Department of Biochemistry and Molecular Biology, Shantou University Medical CollegeShantou 515041, China
| | - Jiyu Ding
- Department of Biochemistry and Molecular Biology, Shantou University Medical CollegeShantou 515041, China
| | - Yan Zhao
- Department of Pathology, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen UniversityShantou 515041, China
| | - Ling Lin
- Department of Biochemistry and Molecular Biology, Shantou University Medical CollegeShantou 515041, China
| | - Mantong Chen
- Department of Biochemistry and Molecular Biology, Shantou University Medical CollegeShantou 515041, China
| | - Zhixiong Cai
- Department of Cardiology, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen UniversityShantou 515041, China
| | - Shaohong Wang
- Department of Pathology, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen UniversityShantou 515041, China
| | - Liyan Xu
- Institute of Oncologic Pathology, Shantou University Medical CollegeShantou 515041, China
| | - Enmin Li
- Department of Biochemistry and Molecular Biology, Shantou University Medical CollegeShantou 515041, China
| | - Zhiyong Wu
- Department of Surgical Oncology, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen UniversityShantou 515041, China
| | - Yun Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Genes Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityGuangzhou 510120, China
| | - Haixiong Xu
- Department of Neurosurgery, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen UniversityShantou 515041, China
| | - Dong Yin
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Genes Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityGuangzhou 510120, China
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Chen BJ, Byrne FL, Takenaka K, Modesitt SC, Olzomer EM, Mills JD, Farrell R, Hoehn KL, Janitz M. Analysis of the circular RNA transcriptome in endometrial cancer. Oncotarget 2017; 9:5786-5796. [PMID: 29464034 PMCID: PMC5814174 DOI: 10.18632/oncotarget.23534] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 12/01/2017] [Indexed: 01/21/2023] Open
Abstract
Circular RNAs (circRNAs) are a naturally occurring family of non-coding RNA that may regulate gene expression in mammals. circRNAs are more stable than messenger RNAs due to their resistance to RNA exonuclease. A growing body of evidence has shown that the expression of circRNAs is regulated during development in a tissue-specific manner. CircRNAs have been implicated in a number of cancers; however, their role in endometrial cancer (EC) is completely unknown. Here, we report the circular transcriptome specific for EC as determined by RNA sequencing. We found that the overall abundance of circRNAs is lower in EC than in normal endometrium. Further, there are numerous ‘hotspot’ genes from which circRNAs are transcribed that may account for alterations in circRNA expression between the normal and malignant endometrium. Most importantly, we have also identified circRNAs that are differentially expressed between malignant and normal endometrial tissue. The functional significance of these circRNAs in cancer remains to be determined, but they may serve as potential biomarkers for the diagnosis of EC or monitoring of EC progression.
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Affiliation(s)
- Bei Jun Chen
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Frances L Byrne
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Konii Takenaka
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Susan C Modesitt
- Division of Gynecologic Oncology, Obstetrics and Gynecology Department, University of Virginia Health System, Charlottesville, VA, USA
| | - Ellen M Olzomer
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - James D Mills
- Department of Pathology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Rhonda Farrell
- Gynecologic Oncology, Royal Hospital for Women, University of New South Wales, Sydney, NSW, Australia
| | - Kyle L Hoehn
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Michael Janitz
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia.,Paul-Flechsig-Institute for Brain Research, University of Leipzig, Leipzig, Germany
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