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张 诺, 张 震, 张 雨, 宋 雪, 张 小, 李 静, 左 芦, 胡 建. [PCID2 is highly expressed in gastric cancer and affects the prognosis by regulating cancer cell cycle and proliferation]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2024; 44:324-332. [PMID: 38501418 PMCID: PMC10954517 DOI: 10.12122/j.issn.1673-4254.2024.02.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Indexed: 03/20/2024]
Abstract
OBJECTIVE To investigate the expression of PCI Domain Containing 2 (PCID2) in gastric cancer, its effect on gastric cancer cell cycle and proliferation and the possible molecular mechanisms. METHODS We examined PCID2 expression levels in gastric cancer and adjacent tissues from 100 patients undergoing radical gastrectomy in our hospital between January, 2012 and December, 2016, and analyzed the correlation of PCID2 expression level with cancer progression and postoperative 5-year survival rate of the patients. GO enrichment analysis was performed to identify the possible pathways that mediated the effect of PCID2 in gastric cancer progression. The effects of lentivirus-mediated PCID2 knockdown and overexpression on cell proliferation and cell cycle were analyzed in gastric cancer MGC-803 cells and in nude mice. RESULTS PCID2 was highly expressed in gastric cancer tissues and positively correlated with peripheral blood levels of CA19-9 and CEA (P < 0.01). In gastric cancer patients, a high PCID2 expression was associated with a significantly lowered postoperative 5-year survival rate (P < 0.001) as an independent risk factor for postoperative survival (HR: 2.987, 95% CI: 1.616-5.519). The sensitivity, specificity, and area under the curve of PCID2 for predicting postoperative 5-year survival were 76.74%, 75.44%, and 0.755 (P < 0.001), respectively. GO enrichment analysis suggested that PCID2 was associated with gastric cancer cell cycle progression. PCID2 overexpression in MGC-803 cells significantly promoted cell proliferation, G1/S phase transition, expressions of cyclin D1 and CDK6, and the growth of transplanted xenograft in nude mice (P < 0.05). The expressions of p27 and p16 were significantly lowered in gastric cancer tissues, and their expression levels were negatively regulated by PCID2 expression in MGC-803 cells (P < 0.05). CONCLUSION PCID2 is highly expressed in gastric cancer tissues in close correlation with poor prognosis of the patients. High PCID2 expression promotes gastric cancer proliferation and cell cycle progression by inhibiting the expression of p27 and p16.
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Affiliation(s)
- 诺 张
- 蚌埠医科大学第一附属医院检验科,安徽 蚌埠 233000Clinical Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
- 蚌埠医科大学第一附属医院炎症相关性疾病基础与转化研究安徽省重点实验室,安徽 蚌埠 233000Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
| | - 震 张
- 蚌埠医科大学第一附属医院胃肠外科,安徽 蚌埠 233000Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
| | - 雨路 张
- 蚌埠医科大学临床医学院,安徽 蚌埠 233000Clinical Medical College, Bengbu Medical University, Bengbu 233000, China
| | - 雪 宋
- 蚌埠医科大学第一附属医院炎症相关性疾病基础与转化研究安徽省重点实验室,安徽 蚌埠 233000Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
- 蚌埠医科大学第一附属医院中心实验室,安徽 蚌埠 233000Central Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
| | - 小凤 张
- 蚌埠医科大学第一附属医院炎症相关性疾病基础与转化研究安徽省重点实验室,安徽 蚌埠 233000Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
- 蚌埠医科大学第一附属医院中心实验室,安徽 蚌埠 233000Central Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
| | - 静 李
- 蚌埠医科大学第一附属医院检验科,安徽 蚌埠 233000Clinical Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
- 蚌埠医科大学第一附属医院炎症相关性疾病基础与转化研究安徽省重点实验室,安徽 蚌埠 233000Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
| | - 芦根 左
- 蚌埠医科大学第一附属医院胃肠外科,安徽 蚌埠 233000Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
- 蚌埠医科大学第一附属医院炎症相关性疾病基础与转化研究安徽省重点实验室,安徽 蚌埠 233000Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
| | - 建国 胡
- 蚌埠医科大学第一附属医院检验科,安徽 蚌埠 233000Clinical Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
- 蚌埠医科大学第一附属医院炎症相关性疾病基础与转化研究安徽省重点实验室,安徽 蚌埠 233000Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
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Zhu M, Wei C, Wang H, Han S, Cai L, Li X, Liao X, Che X, Li X, Fan L, Qiu G. SIRT1 mediated gastric cancer progression under glucose deprivation through the FoxO1-Rab7-autophagy axis. Front Oncol 2023; 13:1175151. [PMID: 37293593 PMCID: PMC10244632 DOI: 10.3389/fonc.2023.1175151] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 04/28/2023] [Indexed: 06/10/2023] Open
Abstract
Purpose Silent mating type information regulator 2 homolog 1 (SIRT1) and autophagy have a two-way action (promoting cell death or survival) on the progression and treatment of gastric cancer (GC) under different conditions or environments. This study aimed to investigate the effects and underlying mechanism of SIRT1 on autophagy and the malignant biological behavior of GC cells under conditions of glucose deprivation (GD). Materials and methods Human immortalized gastric mucosal cell GES-1 and GC cell lines SGC-7901, BGC-823, MKN-45 and MKN-28 were utilized. A sugar-free or low-sugar (glucose concentration, 2.5 mmol/L) DMEM medium was used to simulate GD. Additionally, CCK8, colony formation, scratches, transwell, siRNA interference, mRFP-GFP-LC3 adenovirus infection, flow cytometry and western blot assays were performed to investigate the role of SIRT1 in autophagy and malignant biological behaviors (proliferation, migration, invasion, apoptosis and cell cycle) of GC under GD and the underlying mechanism. Results SGC-7901 cells had the longest tolerance time to GD culture conditions, which had the highest expression of SIRT1 protein and the level of basal autophagy. With the extension of GD time, the autophagy activity in SGC-7901 cells also increased. Under GD conditions, we found a close relationship between SIRT1, FoxO1 and Rab7 in SGC-7901 cells. SIRT1 regulated the activity of FoxO1 and upregulated the expression of Rab7 through deacetylation, which ultimately affected autophagy in GC cells. In addition, changing the expression of FoxO1 provided feedback on the expression of SIRT1 in the cell. Reducing SIRT1, FoxO1 or Rab7 expression significantly inhibited the autophagy levels of GC cells under GD conditions, decreased the tolerance of GC cells to GD, enhanced the inhibition of GD in GC cell proliferation, migration and invasion and increased apoptosis induced by GD. Conclusion The SIRT1-FoxO1-Rab7 pathway is crucial for the autophagy and malignant biological behaviors of GC cells under GD conditions, which could be a new target for the treatment of GC.
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Affiliation(s)
- Mengke Zhu
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Chao Wei
- Clinical Medicine Teaching and Research Section, Xi’an Health School, Xi’an, Shaanxi, China
| | - Haijiang Wang
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Shangning Han
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Lindi Cai
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Xiaowen Li
- Department of General Surgery, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Xinhua Liao
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Xiangming Che
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Xuqi Li
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Lin Fan
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Guanglin Qiu
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
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Zhao H, Ding Y, Zhang L. SIRT1/APE1 promotes the viability of gastric cancer cells by inhibiting p53 to suppress ferroptosis. Open Med (Wars) 2023; 18:20220620. [PMID: 36820068 PMCID: PMC9938643 DOI: 10.1515/med-2022-0620] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 02/16/2023] Open
Abstract
Gastric cancer (GC) is a common cancer worldwide with high mortality. Sirtuin 1 (SIRT1) and apurinic/apyrimidinic endodeoxyribonuclease 1 (APE1) are abnormally expressed in GC cells and related to p53, which is involved in ferroptosis. Thus, we explore the mechanism via which SIRT1, APE1, and p53 impact ferroptosis in GC cells. Specifically, GC cells were transfected with small-interfering RNA for SIRT1 (SiSIRT1) or small-interfering RNA for APE1 (SiAPE1) or with short-hairpin RNA for p53, and the cell viability, Fe2+, malondialdehyde (MDA), and glutathione (GSH) contents were detected by cell counting kit-8 assay and enzyme-linked immunosorbent assay. Western blot, immunofluorescence, and quantitative real-time polymerase chain reaction were conducted to quantify SIRT1, APE1, p53, solute carrier family 7 member 11 (SLC7A11), and glutathione peroxidase 4 (GPX4) levels in GC cells. Silencing of SIRT1 decreased viability, GSH content, and expressions of GPX4 and SLC7A11, while increased Fe2+, MDA content, and p53 expression in GC cells. Such aforementioned effects were reversed by APE1 overexpression. Also, SiAPE1 generated the same effects as SiSIRT1 on the above aspects, which was offset by p53 silencing. In short, SIRT1/APE1 promotes the growth of GC cells by targeting p53 to inhibit ferroptosis.
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Affiliation(s)
- Huijin Zhao
- Department of Gastroenterology, The Fourth Hospital of Hebei Medical University, Shijiazhuang City, Hebei Province, 050000, China
| | - Yuanyi Ding
- Department of No. 2 General Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang City, Hebei Province, 050000, China
| | - Lan Zhang
- Department of Gastroenterology, The Fourth Hospital of Hebei Medical University, Shijiazhuang City, Hebei Province, 050000, China
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Badie A, Gaiddon C, Mellitzer G. Histone Deacetylase Functions in Gastric Cancer: Therapeutic Target? Cancers (Basel) 2022; 14:5472. [PMID: 36358890 PMCID: PMC9659209 DOI: 10.3390/cancers14215472] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 10/29/2022] [Accepted: 11/01/2022] [Indexed: 09/05/2023] Open
Abstract
Gastric cancer (GC) is one of the most aggressive cancers. Therapeutic treatments are based on surgery combined with chemotherapy using a combination of platinum-based agents. However, at metastatic stages of the disease, survival is extremely low due to late diagnosis and resistance mechanisms to chemotherapies. The development of new classifications has not yet identified new prognostic markers for clinical use. The studies of epigenetic processes highlighted the implication of histone acetylation status, regulated by histone acetyltransferases (HATs) and by histone deacetylases (HDACs), in cancer development. In this way, inhibitors of HDACs (HDACis) have been developed and some of them have already been clinically approved to treat T-cell lymphoma and multiple myeloma. In this review, we summarize the regulations and functions of eighteen HDACs in GC, describing their known targets, involved cellular processes, associated clinicopathological features, and impact on survival of patients. Additionally, we resume the in vitro, pre-clinical, and clinical trials of four HDACis approved by Food and Drug Administration (FDA) in cancers in the context of GC.
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Affiliation(s)
| | | | - Georg Mellitzer
- Laboratoire Streinth, Université de Strasbourg, Inserm UMR_S 1113 IRFAC, 67200 Strasbourg, France
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MiR-601 inhibited small cell lung cancer progression by modulating SIRT1. Mol Cell Toxicol 2022. [DOI: 10.1007/s13273-022-00268-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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Jothimani G, Bhatiya M, Pathak S, Paul S, Banerjee A. Tumor Suppressor microRNAs in Gastrointestinal Cancers: A Mini-Review. RECENT ADVANCES IN INFLAMMATION & ALLERGY DRUG DISCOVERY 2022; 16:5-15. [PMID: 35670340 DOI: 10.2174/2772270816666220606112727] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/04/2022] [Accepted: 03/18/2022] [Indexed: 01/17/2023]
Abstract
BACKGROUND Gastrointestinal (GI) cancer is associated with a group of cancers affecting the organs in the GI tract, with a high incidence and mortality rate. This type of cancer development involves a series of molecular events that arise by the dysregulation of gene expressions and microRNAs (miRNAs). OBJECTIVES This mini-review focuses on elucidating the mechanism of tumor suppressor miRNA-mediated oncogenic gene silencing, which may contribute to a better understanding of miRNA-mediated gene expression regulation of cell cycle, proliferation, invasion, and apoptosis in GI cancers. In this review, the biological significance of tumor suppressor miRNAs involved in gastrointestinal cancers is briefly explained. METHODS The articles were searched with the keywords 'miRNA', 'gastrointestinal cancers', 'esophageal cancer', 'gastric cancer', 'colorectal cancer', 'pancreatic cancer', 'liver cancer', and 'gall bladder cancer' from the Google Scholar and PubMed databases. A total of 71 research and review articles have been collected and referred for this study. RESULTS This review summarises recent research enhancing the effectiveness of miRNAs as novel prognostic, diagnostic, and therapeutic markers for GI cancer treatment strategies. The expression pattern of various miRNAs has been dysregulated in GI cancers, which are associated with proliferation, cell cycle regulation, apoptosis, migration, and invasion. CONCLUSION The role of tumor suppressor miRNAs in the negative regulation of oncogenic gene expression was thoroughly explained in this review. Its potential role as a microRNA therapeutic candidate is also discussed. Profiling and regulating tumor suppressor miRNA expression in gastrointestinal cancers using miRNA mimics could be used as a prognostic, diagnostic, and therapeutic marker, as well as an elucidating molecular therapeutic approach to tumor suppression.
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Affiliation(s)
- Ganesan Jothimani
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Chennai, India
| | - Meenu Bhatiya
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Chennai, India
| | - Surajit Pathak
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Chennai, India
| | - Sujay Paul
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Queretaro, Av. Epigmenio Gonzalez, No. 500 Fracc. San Pablo, Querétaro CP 76130, Mexico
| | - Antara Banerjee
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Chennai, India
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Tang SY, Zhou PJ, Meng Y, Zeng FR, Deng GT. Gastric cancer: An epigenetic view. World J Gastrointest Oncol 2022; 14:90-109. [PMID: 35116105 PMCID: PMC8790429 DOI: 10.4251/wjgo.v14.i1.90] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 05/17/2021] [Accepted: 12/23/2021] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer (GC) poses a serious threat worldwide with unfavorable prognosis mainly due to late diagnosis and limited therapies. Therefore, precise molecular classification and search for potential targets are required for diagnosis and treatment, as GC is complicated and heterogeneous in nature. Accumulating evidence indicates that epigenetics plays a vital role in gastric carcinogenesis and progression, including histone modifications, DNA methylation and non-coding RNAs. Epigenetic biomarkers and drugs are currently under intensive evaluations to ensure efficient clinical utility in GC. In this review, key epigenetic alterations and related functions and mechanisms are summarized in GC. We focus on integration of existing epigenetic findings in GC for the bench-to-bedside translation of some pivotal epigenetic alterations into clinical practice and also describe the vacant field waiting for investigation.
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Affiliation(s)
- Si-Yuan Tang
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| | - Pei-Jun Zhou
- Cancer Research Institute, School of Basic Medicine Science, Central South University, School of Basic Medicine Science, Central South University 410008, Hunan Province, China
| | - Yu Meng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| | - Fu-Rong Zeng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| | - Guang-Tong Deng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
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Lv S, Liu L, Yang B, Zhao X. Association of miR-9-5p and NFIC in the progression of gastric cancer. Hum Exp Toxicol 2022; 41:9603271221084671. [PMID: 35481447 DOI: 10.1177/09603271221084671] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Gastric cancer is the most common malignant neoplasm of digestive system. Herein, we aim to detect the expression of nuclear factor I C (NFIC) in gastric cancer cells, and to explore the effect and mechanism of its expression on the development of gastric cancer. METHODS qPCR and Western blot assays were carried out to detect NFIC expression. Then, BGC-823 and SGC-7901 cell lines were selected to perform the following functional experiments. The function of NFIC on gastric cancer cells was analyzed by biological experiments. The associations between miR-9-5p and NFIC were searched on the bioinformatics website and identified by dual luciferase assay. The effects of miR-9-5p and NFIC on cells were verified by co-transfection experiments. The related genes expression was examined by Western blot. RESULTS A marked augmentation of NFIC was observed in gastric cancer cells. Knockdown of NFIC significantly inhibited the viability, colony formation, invasion, and migration of gastric cancer cells. Overexpression of miR-9-5p obviously suppressed the viability, colony formation, invasion, and migration of gastric cancer cells, and this phenomenon was aggravated by si-NFIC. Additionally, the expression levels of PCNA, vimentin, and Snail were obviously decreased after miR-9-5p mimic or/and si-NFIC treatment. CONCLUSIONS These results suggested that NFIC was highly expressed in gastric cancer cells, and knockdown of NFIC suppressed the growth and mobility of gastric cancer cells; miR-9-5p was identified as an upstream regulator of NFIC and suppressed the malignant behaviors of gastric cancer cells by targeting NFIC through affecting PCNA, vimentin, and Snail expression.
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Affiliation(s)
- Shihong Lv
- Department of Gastroenterology, The Second Affiliated Hospital of Mudanjiang Medical College, Mudanjiang, China
| | - Lei Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Mudanjiang Medical College, Mudanjiang, China
| | - Baijing Yang
- Department of Gastroenterology, The Second Affiliated Hospital of Mudanjiang Medical College, Mudanjiang, China
| | - Xiaohua Zhao
- Respiratory Department, The Second Affiliated Hospital of Mudanjiang Medical College, Mudanjiang, China
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Chen S, Wu H, Zhu L, Jiang M, Wei S, Luo J, Liu A. MiR-199b-5p Promotes Gastric Cancer Progression by Regulating HHIP Expression. Front Oncol 2021; 11:728393. [PMID: 34532291 PMCID: PMC8438221 DOI: 10.3389/fonc.2021.728393] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/03/2021] [Indexed: 12/29/2022] Open
Abstract
Objectives Gastric cancer (GC) is one of the most common malignant tumors. More and more evidences support the role of microRNAs (miRNAs) in tumor progression. However, the role of miRNAs in human GC remains largely unknown. Methods Based on the published gastric cancer expression profile data, combined with bioinformatics analysis, potential miRNAs in the process of GC were screened. The expression of miR-199b-5p in GC cells and patients’ plasma was detected by RT-PCR. The effects of miR-199b-5p on GC in vitro were detected by EdU proliferation assay, colony formation assay, Transwell assay and wound healing assay. Western blot was used to detect epithelial-mesenchymal transition (EMT) related proteins. The subcutaneous tumorigenesis model and metastatic tumor model of mice were used to study its effect in vivo. Bioinformatics and Dual luciferase reporter assay were used to verify the effect of miR-199b-5p and its target gene. Results Through bioinformatics analysis, we screened a novel miRNA miR-199b-5p that was significantly up-regulated in GC tissue and associated with poor prognosis of GC patients. RT-PCR results showed that its expression was also up-regulated in GC cell lines and patients’ plasma. MiR-199b-5p can significantly promote GC cell proliferation and migration in vitro and in vivo. Western blot showed that miR-199b-5p could promote the EMT process of GC. HHIP has been proved to be a target of miR-199b-5p, and the recovery of HHIP can weaken the effect of miR-199b-5p. Conclusion MiR-199b-5p may play an oncogene role in GC by targeting HHIP, suggesting that miR-199b-5p may be a potential therapeutic target for GC.
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Affiliation(s)
- Songda Chen
- Department of Endoscopy, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Huijie Wu
- Department of Endoscopy, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Lingyu Zhu
- Department of Endoscopy, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Mengjie Jiang
- Department of Endoscopy, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Shuli Wei
- Department of Gastroenterology, The 10th Affiliated Hospital of Guangxi Medical University, Qinzhou, China
| | - Jinhua Luo
- Department of Gastroenterology, The 10th Affiliated Hospital of Guangxi Medical University, Qinzhou, China
| | - Aiqun Liu
- Department of Endoscopy, Guangxi Medical University Cancer Hospital, Nanning, China
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Mi C, Zhang D, Li Y, Ren M, Ma W, Lu G, He S. miR-4677-3p participates proliferation and metastases of gastric cancer cell via CEMIP-PI3K/AKT signaling pathway. Cell Cycle 2021; 20:1978-1987. [PMID: 34437815 DOI: 10.1080/15384101.2021.1971375] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Gastric cancer is one of the top three leading causes of cancer-related death in the world. Evidence indicated that miR-4677-3p was dysregulated and involved in modulating invasion and migration in multiple types of cancer cells. The aim of this research is to explore the function and mechanism of miR-4677-3p in the development of gastric cancer. In this study, we discovered that miR-4677-3p was down-regulated in gastric cancer tissues and cells. Over-expression of miR-4677-3p suppressed the proliferation, migration and invasion of gastric cancer cells. Furthermore, miR-4677-3p directly bond to CEMIP 3'UTR region and inhibited CEMIP expression. CEMIP promoted cell proliferation, migration and invasion of gastric cancer cells via accelerating PI3K/AKT signaling pathway. siCEMIP or PI3K/AKT signaling inhibitor (Akti-1/2 and LY294002) partly reversed the effects of miR-4677-3p on the cellular growth and metastasis of gastric cancer. In general, miR-4677-3p regulated the development of gastric cancer through CEMIP-PI3K/AKT signaling pathway axis. This study verified the function and molecular mechanism of miR-4677-3p in gastric cancer cells, and may provide a potential diagnosis/prognosis target for patients with gastric cancer.
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Affiliation(s)
- Chen Mi
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi 'An City, Shaanxi Province, China
| | - Dan Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi 'An City, Shaanxi Province, China
| | - Yarui Li
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi 'An City, Shaanxi Province, China
| | - Mudan Ren
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi 'An City, Shaanxi Province, China
| | - Wenhui Ma
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi 'An City, Shaanxi Province, China
| | - Guifang Lu
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi 'An City, Shaanxi Province, China
| | - Shuixiang He
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi 'An City, Shaanxi Province, China
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Hua Y, Wang H, Wang H, Wu X, Yang L, Wang C, Li X, Jin Y, Li M, Wang L, Dong C, Yin F. Circular RNA Circ_0006282 Promotes Cell Proliferation and Metastasis in Gastric Cancer by Regulating MicroRNA-144-5p/Tyrosine 3-Monooxygenase/Tryptophan 5-Monooxygenase Activation Protein β Axis. Cancer Manag Res 2021; 13:815-827. [PMID: 33536789 PMCID: PMC7850404 DOI: 10.2147/cmar.s283952] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 01/08/2021] [Indexed: 12/13/2022] Open
Abstract
Background Circular RNAs (circRNAs) are a class of non-coding RNAs which function as novel regulators in human cancers. In this study, we aimed to investigate the functional roles and related molecular mechanisms of circ_0006282 in gastric cancer (GC) progression. Methods Fifty-five GC patients were enrolled in this study. GC cells (AGS and HGC-27) and normal cells (GES-1) were cultured in RPMI1640 added with 10% FBS and 1% penicillin-streptomycin. Quantitative real-time polymerase chain reaction (qRT-PCR) assay was used to determine the expression levels of circ_0006282, transcription elongation factor B subunit 1 (TCEB1) mRNA, miR-144-5p and tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein β (YWHAB; also known as 14-3-3β). RNase R assay was used to determine the characteristic of circ_0006282. Cell Counting Kit-8 (CCK-8) assay and colony formation assay were employed for cell proliferation. Transwell assay was conducted for cell migration and invasion. Western blot assay was carried out to measure the protein levels of Cyclin D1, matrix metalloprotein 9 (MMP9) and YWHAB. Dual-luciferase reporter assay, RNA pull-down assay and RIP assay were adopted to analyze the interaction between miR-144-5p and circ_0006282 or YWHAB. Murine xenograft model assay was performed to explore the function of circ_0006282 in vivo. Results Circ_0006282 level was increased in GC tissues and cells compared to normal tissues and cells. Silencing of circ_0006282 restrained GC cell proliferation, migration and invasion. For mechanism analysis, circ_0006282 was identified to function as the sponge for miR-144-5p to positively regulate YWHAB expression in GC cells. Moreover, miR-144-5p inhibition or YWHAB overexpression effectively reversed the impacts of circ_0006282 knockdown on GC cell growth and motility. Additionally, circ_0006282 knockdown blocked tumor growth of GC in vivo. Conclusion Circ_0006282 facilitated the malignant behaviors of GC cells through circ_0006282/miR-144-5p/YWHAB axis.
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Affiliation(s)
- Yunqi Hua
- Department of Digestive Oncology, Baotou Cancer Hospital, Baotou, Inner Mongolia, People's Republic of China
| | - Hailong Wang
- Department of Digestive Minimally Invasive Surgery, The Second Affiliated Hospital of Baotou Medical College, Baotou, Inner Mongolia, People's Republic of China
| | - Haizhen Wang
- Center of Digestive Endoscopy, The Second Affiliated Hospital of Baotou Medical College, Baotou, Inner Mongolia, People's Republic of China
| | - Xiangming Wu
- Department of General Surgery, The Fourth Hospital of Baotou, Baotou, Inner Mongolia, People's Republic of China
| | - Li Yang
- Department of Pathology, The Second Affiliated Hospital of Baotou Medical College, Baotou, Inner Mongolia, People's Republic of China
| | - Chenlin Wang
- Department of Digestive Oncology, Baotou Cancer Hospital, Baotou, Inner Mongolia, People's Republic of China
| | - Xi Li
- Department of Digestive Oncology, Baotou Cancer Hospital, Baotou, Inner Mongolia, People's Republic of China
| | - Yunjian Jin
- Department of Digestive Oncology, Baotou Cancer Hospital, Baotou, Inner Mongolia, People's Republic of China
| | - Min Li
- Department of Digestive Oncology, Baotou Cancer Hospital, Baotou, Inner Mongolia, People's Republic of China
| | - Lina Wang
- Department of Digestive Oncology, Baotou Cancer Hospital, Baotou, Inner Mongolia, People's Republic of China
| | - Changcheng Dong
- Department of General Surgery, Inner Mongolia Baogang Hospital, Baotou, Inner Mongolia, People's Republic of China
| | - Fangrui Yin
- Department of Central Laboratory, The First Affiliated Hospital of Baotou Medical College, Baotou, Inner Mongolia, People's Republic of China
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