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Liu X, Hong X, Jiang S, Li R, Lv Q, Wang J, Wang X, Yang M, Geng H, Li Y. Epidemiological and transcriptome data identify potential key genes involved in iron overload for type 2 diabetes. Diabetol Metab Syndr 2023; 15:134. [PMID: 37344885 DOI: 10.1186/s13098-023-01110-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 06/13/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUND Many previous studies have reported the association between iron overload (IO) and type 2 diabetes mellitus (T2DM). However, the underlying molecular mechanism is not clear. METHODS Epidemiological data from the National Health and Nutrition Examination Survey 2017-2018 (NHANES) was used to systematically explore the association between IO and diabetes. Furthermore, transcriptome data from Gene Expression Omnibus (GEO) were analyzed using bioinformatics methods to explore the underlying functional mechanisms at the molecular level. RESULTS Data from NHANES showed a "W" shape relationship between serum iron (frozen) and the risk of diabetes (P < 0.001) as well as a "∧" shape correlation between serum unsaturated iron binding capacity (UIBC) and the risk of diabetes (P = 0.007). Furthermore, the serum iron (frozen) was positively associated with fasting plasma glucose and HOMAB (P < 0.05), and UIBC was positively associated with fasting insulin (P < 0.05). Transcriptome data showed that two IO-related genes [Transferrin receptor (TFRC) and Solute carrier family-11 member-2 (SLC11A2)] were down-regulated in T2DM. The correlation analysis showed that expression levels of TFRC and SLC11A2 were significantly and positively correlated with genes involved in insulin secretion (P < 0.05). Protein-protein interaction network analysis showed that TFRC and SLC11A2 interacted with four key genes, including VAMP2, HIF1A, SLC2A1, and RAB11FIP2. CONCLUSION We found that IO status was associated with increased FPG and aggravated HOMAB, and two IO-related genes (TFRC and SLC11A2) might induce the occurrence of T2DM by influencing insulin secretion, which provides potential therapeutic targets for T2DM patients.
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Affiliation(s)
- Xuekui Liu
- Department of Central Laboratory, Xuzhou Central Hospital, Xuzhou, China
- Department of Anesthesiology, Xuzhou Renci Hospital, Xuzhou, China
| | - Xiu Hong
- Department of Central Laboratory, Xuzhou Central Hospital, Xuzhou, China
| | - Shiqiang Jiang
- Department of Anesthesiology, Xuzhou Renci Hospital, Xuzhou, China
| | - Rui Li
- Department of Central Laboratory, Xuzhou Central Hospital, Xuzhou, China
| | - Qian Lv
- Department of Central Laboratory, Xuzhou Central Hospital, Xuzhou, China
| | - Jie Wang
- Department of Central Laboratory, Xuzhou Central Hospital, Xuzhou, China
| | - Xiuli Wang
- Department of Central Laboratory, Xuzhou Central Hospital, Xuzhou, China
| | - Manqing Yang
- Department of Central Laboratory, Xuzhou Central Hospital, Xuzhou, China
| | - Houfa Geng
- Department of Endocrinology, Xuzhou Central Hospital, Xuzhou, China.
| | - Yang Li
- Department of Central Laboratory, Xuzhou Central Hospital, Xuzhou, China.
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Luo X, Chang S, Xiao S, Peng Y, Gao Y, Hu F, Liang J, Xu Y, Du K, Chen Y, Qin J, Meltzer SJ, Deng S, Feng X, Fan X, Hou G, Jin Z, Zhang X. PAD4-dependent citrullination of nuclear translocation of GSK3β promotes colorectal cancer progression via the degradation of nuclear CDKN1A. Neoplasia 2022; 33:100835. [PMID: 36113195 PMCID: PMC9483803 DOI: 10.1016/j.neo.2022.100835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/15/2022] [Accepted: 08/23/2022] [Indexed: 11/06/2022]
Abstract
Peptidylarginine deiminase 4 (PAD4), a Ca2+-dependent enzyme, catalyzes the conversion of arginine to citrulline and has been strongly associated with many malignant tumors. However, the molecular mechanisms of PAD4 in the development and progression of colorectal cancer (CRC) remain unclearly defined. In our study, PAD4 expression was increased in CRC tissues and cells, and was closely related to tumor size, lymph node metastasis. Moreover, the transcription factor KLF9 directly bound to PADI4 gene promoter, leading to overexpression of PAD4 in CRC cells, which augmented cell growth and migration. We revealed that PAD4 interacted with and citrullinated glycogen synthase kinase-3β (GSK3β) in CRC cells, and GSK3β Arg-344 was the dominating PAD4-citrullination site. Furthermore, IgL2 and catalytic domains of PAD4 directly bound to the kinase domain of GSK3β in CRC cells. Mechanistically, PAD4 promoted the transport of GSK3β from the cytoplasm to the nucleus, thereby increasing the ubiquitin-dependent proteasome degradation of nuclear cyclin-dependent kinase inhibitor 1 (CDKN1A). Our study is the first to reveal the details of a critical PAD4/GSK3β/CDKN1A signaling axis for CRC progression, and provides evidence that PAD4 is a potential diagnosis biomarker and therapeutic target in CRC.
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Affiliation(s)
- Xiaonuan Luo
- Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong, People's Republic of China
| | - Shanshan Chang
- Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong, People's Republic of China
| | - Siyu Xiao
- Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong, People's Republic of China
| | - Yin Peng
- Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong, People's Republic of China
| | - Yuli Gao
- Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong, People's Republic of China
| | - Fan Hu
- Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong, People's Republic of China
| | - Jianxue Liang
- Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong, People's Republic of China
| | - Yidan Xu
- Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong, People's Republic of China
| | - Kaining Du
- Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong, People's Republic of China
| | - Yang Chen
- Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong, People's Republic of China
| | - Jiequan Qin
- Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong, People's Republic of China
| | - Stephen J Meltzer
- Department of Medicine/GI Division, Johns Hopkins University School of Medicine and Sidney Ki-mmel Comprehensive Cancer Center, Baltimore, MD, USA
| | - Shiqi Deng
- Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong, People's Republic of China
| | - Xianling Feng
- Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong, People's Republic of China
| | - Xinmin Fan
- Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong, People's Republic of China
| | - Gangqiang Hou
- Department of Medical Image Center, Kangning Hospital of Shenzhen, Shenzhen, Guangdong Province, People's Republic of China
| | - Zhe Jin
- Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong, People's Republic of China
| | - Xiaojing Zhang
- Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong, People's Republic of China.
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3
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Song J, Lin Z, Liu Q, Huang S, Han L, Fang Y, Zhong P, Dou R, Xiang Z, Zheng J, Zhang X, Wang S, Xiong B. MiR-192-5p/RB1/NF-κBp65 signaling axis promotes IL-10 secretion during gastric cancer EMT to induce Treg cell differentiation in the tumour microenvironment. Clin Transl Med 2022; 12:e992. [PMID: 35969010 PMCID: PMC9377151 DOI: 10.1002/ctm2.992] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 07/04/2022] [Accepted: 07/08/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Regulatory T (Treg) cells are important components of the tumour microenvironment (TME) that play roles in gastric cancer (GC) metastasis. Although tumour cells that undergo epithelial-mesenchymal transition (EMT) regulate Treg cell function, their regulatory mechanism in GC remains unclear. METHODS The miR-192-5p was identified by examining three Gene Expression Omnibus GC miRNA expression datasets. RNA immunoprecipitation (RIP) and dual-luciferase reporter assays were conducted to identify interactions between miR-192-5p and RB1. The role of miR-192-5p/RB1 in GC progression was evaluated based on EdU incorporation, wound healing and Transwell assays. An in vitro co-culture assay was performed to measure the effect of miR-192-5p/RB1 on Treg cell differentiation. In vivo experiments were conducted to explore the role of miR-192-5p in GC progression and Treg cell differentiation. RESULTS MiR-192-5p was overexpressed in tumour and was associated with poor prognosis in GC. MiR-192-5p bound to the RB1 3'-untranslated region, resulting in GC EMT, proliferation, migration and invasion. MiR-192-5p/RB1 mediated interleukin-10 (IL-10) secretion by regulating nuclear factor-kappaBp65 (NF-κBp65), affecting Treg cell differentiation. NF-κBp65, in turn, promoted miR-192-5p expression and formed a positive feedback loop. Furthermore, in vivo experiments confirmed that miR-192-5p/RB1 promotes GC growth and Treg cell differentiation. CONCLUSION Collectively, our studies indicate that miR-192-5p/RB1 promotes EMT of tumour cells, and the miR-192-5p/RB1/NF-κBp65 signaling axis induces Treg cell differentiation by regulating IL-10 secretion in GC. Our results suggest that targeting miR-192-5p/RB1/NF-κBp65 /IL-10 may pave the way for the development of new immune treatments for GC.
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Affiliation(s)
- Jialin Song
- Department of Gastrointestinal SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
- Hubei Key Laboratory of Tumour Biological BehavioursWuhanChina
- Hubei Cancer Clinical Study CenterWuhanChina
| | - Zaihuan Lin
- Department of Gastrointestinal SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
- Hubei Key Laboratory of Tumour Biological BehavioursWuhanChina
- Hubei Cancer Clinical Study CenterWuhanChina
| | - Qing Liu
- Department of Respiratory and Critical Care MedicineZhongnan Hospital of Wuhan UniversityWuhanChina
- Wuhan Research Center for Infectious Diseases and CancerChinese Academy of Medical SciencesWuhanChina
| | - Sihao Huang
- Department of Gastrointestinal SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
- Hubei Key Laboratory of Tumour Biological BehavioursWuhanChina
- Hubei Cancer Clinical Study CenterWuhanChina
| | - Lei Han
- Department of Gastrointestinal SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
- Hubei Key Laboratory of Tumour Biological BehavioursWuhanChina
- Hubei Cancer Clinical Study CenterWuhanChina
| | - Yan Fang
- Department of obstetrics and gynecologyGuangzhou Women and Children's Medical CenterGuangzhouChina
| | - Panyi Zhong
- Department of Gastrointestinal SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
- Hubei Key Laboratory of Tumour Biological BehavioursWuhanChina
- Hubei Cancer Clinical Study CenterWuhanChina
| | - Rongzhang Dou
- Department of Gastrointestinal SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
- Hubei Key Laboratory of Tumour Biological BehavioursWuhanChina
- Hubei Cancer Clinical Study CenterWuhanChina
| | - Zhenxian Xiang
- Department of Gastrointestinal SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
- Hubei Key Laboratory of Tumour Biological BehavioursWuhanChina
- Hubei Cancer Clinical Study CenterWuhanChina
| | - Jinsen Zheng
- Department of Gastrointestinal SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
- Hubei Key Laboratory of Tumour Biological BehavioursWuhanChina
- Hubei Cancer Clinical Study CenterWuhanChina
| | - Xinyao Zhang
- Department of Gastrointestinal SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
- Hubei Key Laboratory of Tumour Biological BehavioursWuhanChina
- Hubei Cancer Clinical Study CenterWuhanChina
| | - Shuyi Wang
- Department of Gastrointestinal SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
- Hubei Key Laboratory of Tumour Biological BehavioursWuhanChina
- Hubei Cancer Clinical Study CenterWuhanChina
| | - Bin Xiong
- Department of Gastrointestinal SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
- Hubei Key Laboratory of Tumour Biological BehavioursWuhanChina
- Hubei Cancer Clinical Study CenterWuhanChina
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4
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Fei Z, Wang Y, Gu Y, Xie R, Hao Q, Jiang Y. CircKIF5B Promotes Hepatocellular Carcinoma Progression by Regulating the miR-192 Family/XIAP Axis. Front Oncol 2022; 12:916246. [PMID: 35847962 PMCID: PMC9281474 DOI: 10.3389/fonc.2022.916246] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 05/30/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundThe long-term prognosis of HCC (hepatocellular carcinoma) with metastasis remains extremely poor. CircRNAs are promising as critical biological markers in identifying disease mechanisms and developing new effective treatments. However, the role of the aberrant expression of circRNAs in HCC progression remains largely unknown.MethodsCircKIF5B location was investigated by RNA fluorescence in situ hybridization (RNA-FISH). For circRNA determination, RNase R treatment and Real-Time Quantitative RT-PCR (qRT-PCR) were performed. Transwell chamber assays examined the chemotactic migration and invasion of liver cancer cells.ResultsThis study identified the circRNA circKIF5B originating from exons 1, 2, and 3 of the KIF5B gene. Importantly, we found that circKIF5B circRNA, rather than KIF5B linear mRNA, was notably upregulated in liver cancer cell lines and tissues. Moreover, we found that silencing circKIF5B markedly reduced the proliferation, invasion, and metastasis of liver cancer cells by sponging the miR-192 family, thus decreasing the expression of X-linked inhibitor of apoptosis (XIAP).ConclusionOur data demonstrate that circKIF5B can regulate XIAP expression by sponging miR-192 and miR-215 competing for the ceRNA mechanism, indicating that circKIF5B may act as an essential upstream regulator and providing mechanistic evidence to support the view that circKIF5B/miR-192s/XIAP is a promising therapeutic target for treating liver cancer.
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Affiliation(s)
- Zhenghua Fei
- Department of Radiotherapy, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yanfen Wang
- Department of Pathology, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Yuyang Gu
- Department of Radiotherapy, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Rongrong Xie
- Department of Radiotherapy, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qiongyu Hao
- Division of Cancer Research and Training, Department of Internal Medicine, Charles Drew University of Medicine and Science, Los Angeles, CA, United States
- *Correspondence: Qiongyu Hao, ; Yiyan Jiang,
| | - Yiyan Jiang
- Department of Medical Oncology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- *Correspondence: Qiongyu Hao, ; Yiyan Jiang,
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Zhang J, Jiang Z, Shi A. Rab GTPases: The principal players in crafting the regulatory landscape of endosomal trafficking. Comput Struct Biotechnol J 2022; 20:4464-4472. [PMID: 36051867 PMCID: PMC9418685 DOI: 10.1016/j.csbj.2022.08.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/05/2022] [Accepted: 08/07/2022] [Indexed: 11/16/2022] Open
Abstract
After endocytosis, diverse cargos are sorted into endosomes and directed to various destinations, including extracellular macromolecules, membrane lipids, and membrane proteins. Some cargos are returned to the plasma membrane via endocytic recycling. In contrast, others are delivered to the Golgi apparatus through the retrograde pathway, while the rest are transported to late endosomes and eventually to lysosomes for degradation. Rab GTPases are major regulators that ensure cargos are delivered to their proper destinations. Rabs are localized to distinct endosomes and play predominant roles in membrane budding, vesicle formation and motility, vesicle tethering, and vesicle fusion by recruiting effectors. The cascades between Rabs via shared effectors or the recruitment of Rab activators provide an additional layer of spatiotemporal regulation of endocytic trafficking. Notably, several recent studies have indicated that disorders of Rab-mediated endocytic transports are closely associated with diseases such as immunodeficiency, cancer, and neurological disorders.
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Ouyang J, Xie Z, Lei X, Tang G, Gan R, Yang X. Clinical crosstalk between microRNAs and gastric cancer (Review). Int J Oncol 2021; 58:7. [PMID: 33649806 PMCID: PMC7895535 DOI: 10.3892/ijo.2021.5187] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 12/23/2020] [Indexed: 02/06/2023] Open
Abstract
Globally, there were over 1 million new gastric cancer (GC) patients in 2018 and GC has become the sixth most common cancer worldwide. GC caused 783,000 deaths worldwide in 2018, making it the third most deadly cancer type. miRNAs are short (~22 nucleotides in length) non‑coding RNA molecules, which can regulate gene expression passively at a post‑transcriptional level. There are more and more in‑depth studies on miRNAs. There are numerous conclusive evidences that there is an inseparable link between miRNAs and GC. miRNAs can affect the entire process of GC, including the oncogenesis, development, diagnosis, treatment and prognosis of GC. Although many miRNAs have been linked to GC, few can be applied to clinical practice. This review takes the clinical changes of GC as a clue and summarizes the miRNAs related to GC that have confirmed the mechanism of action in the past three years. Through in‑depth study and understanding of the mechanism of those miRNAs, we predict their possible clinical uses, and suggest some new insights to overcome GC.
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Affiliation(s)
- Jing Ouyang
- Institute of Pharmacy and Pharmacology, University of South China
| | - Zhizhong Xie
- Institute of Pharmacy and Pharmacology, University of South China
| | - Xiaoyong Lei
- Institute of Pharmacy and Pharmacology, University of South China
| | - Guotao Tang
- Institute of Pharmacy and Pharmacology, University of South China
| | - Runliang Gan
- Cancer Research Institute, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Xiaoyan Yang
- Institute of Pharmacy and Pharmacology, University of South China
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Diagnostic and Prognostic Role of miR-192 in Different Cancers: A Systematic Review and Meta-Analysis. BIOMED RESEARCH INTERNATIONAL 2021; 2021:8851035. [PMID: 33614788 PMCID: PMC7878092 DOI: 10.1155/2021/8851035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 12/17/2020] [Accepted: 01/15/2021] [Indexed: 12/18/2022]
Abstract
Introduction It has been shown that miR-192 is abnormally expressed in a variety of cancer types and participates in different kinds of signaling pathways. The role of miR-192 in the diagnosis and prognosis of cancer has not been verified. This article is aimed at exploring the diagnostic and prognostic value of miR-192 through a systematic review and meta-analysis. Methods A systematic search was performed through PubMed, Embase, Web of Science, and Cochrane Library databases up to June 16, 2020. A total of 16 studies were enrolled in the meta-analyses, of which 11 articles were used for diagnostic meta-analysis and 5 articles were used for prognostic meta-analysis. The values of sensitivity and specificity using miR-192 expression as a diagnostic tool were pooled in the diagnostic meta-analysis. The hazard ratios (HRs) of overall survival (OS) with 95 confidence intervals (CIs) were extracted from the studies, and pooled HRs were evaluated in the prognostic meta-analysis. Eleven studies including 667 cancer patients and 514 controls met the eligibility criteria for the diagnostic meta-analysis. Five studies including 166 patients with high miR-192 expression and 236 patients with low miR-192 expression met the eligibility criteria for the prognostic meta-analysis. Results The overall diagnostic accuracy was as follows: sensitivity 0.79 (95%CI = 0.75-0.82), specificity 0.74 (95%CI = 0.64-0.82), positive likelihood ratio 3.03 (95%CI = 2.11-4.34), negative likelihood ratio 0.29 (95%CI = 0.23-0.37), diagnostic odds ratio 10.50 (95%CI = 5.89-18.73), and area under the curve ratio (AUC) 0.82 (95%CI = 0.78-0.85). The overall prognostic analysis showed that high expression of miR-192 in patients was associated with positive survival (HR = 0.62, 95%CI : 0.41-0.93, p = 0.020). Conclusion Our results revealed that miR-192 was a potential biomarker with good sensitivity and specificity in cancers. Moreover, highly expressed miR-192 predicted a good prognosis for patients.
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8
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Ni J, Tian W, Liang S, Wang H, Ren Y. Promoter Methylation-mediated Silencing of the MiR-192-5p Promotes Endometrial Cancer Progression by Targeting ALX1. Int J Med Sci 2021; 18:2510-2520. [PMID: 34104082 PMCID: PMC8176185 DOI: 10.7150/ijms.58954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 04/16/2021] [Indexed: 12/24/2022] Open
Abstract
Background: Epigenetic regulation by promoter methylation-mediated silencing of cancer-related microRNAs plays vital roles in tumorigenesis. MiR-192-5p promotes tumor progression in various human cancers with conflicting biological effects. However, its expression levels and biological functions in endometrial carcinoma (EC) have not been reported. Methods: The methylation status of miR-192-5p in tissue samples and cell lines, was examined using bisulfite sequencing PCR. miR-192-5p expression was also measured. EC cell lines transfected with specifically designed vectors overexpressing miR-192-5p, its target gene ALX1 or both, were constructed. Tumorigenicity of these cell lines were examined by in vitro and in vivo experiments. Dual-luciferase reporter assay were employed to verify the target of miR-192-5p. Results: The promoter region of miR-192-5p gene was highly methylated and its expression significantly repressed in EC samples. Moreover, a higher level of promoter methylation as well as a lower expression of miR-192-5p, was significantly associated with advanced Federation of Gynecology and Obstetrics stage and shorter disease-free survival in patients with curatively resected EC. Functional studies demonstrated that miR-192-5p overexpression inhibited in vitro tumor progression, in vivo tumorigenicity and the expression of several oncoproteins that was highly related to epithelial-to-mesenchymal transition. ALX1 was verified as a direct target of miR-192-5p and demonstrated to mediate the tumor-suppressive function of miR-192-5p. Conclusion: miR-192-5p is a tumor suppressor miRNA that is epigenetically silenced by promoter methylation and may serve as a potential prognostic biomarker in EC.
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Affiliation(s)
- Jianjiao Ni
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Wenjuan Tian
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Shanhui Liang
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Huaying Wang
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yulan Ren
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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9
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Zhang X, Peng Y, Yuan Y, Gao Y, Hu F, Wang J, Zhu X, Feng X, Cheng Y, Wei Y, Fan X, Xie Y, Lv Y, Ashktorab H, Smoot D, Li S, Meltzer SJ, Hou G, Jin Z. Histone methyltransferase SET8 is regulated by miR-192/215 and induces oncogene-induced senescence via p53-dependent DNA damage in human gastric carcinoma cells. Cell Death Dis 2020; 11:937. [PMID: 33127874 PMCID: PMC7599338 DOI: 10.1038/s41419-020-03130-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 10/09/2020] [Accepted: 10/12/2020] [Indexed: 12/21/2022]
Abstract
Gastric cancer (GC) is the most common cancer throughout the world. Despite advances of the treatments, detailed oncogenic mechanisms are largely unknown. In our previous study, we investigated microRNA (miR) expression profiles in human GC using miR microarrays. We found miR-192/215 were upregulated in GC tissues. Then gene microarray was implemented to discover the targets of miR-192/215. We compared the expression profile of BGC823 cells transfected with miR-192/215 inhibitors, and HFE145 cells transfected with miR-192/-215 mimics, respectively. SET8 was identified as a proposed target based on the expression change of more than twofold. SET8 belongs to the SET domain-containing methyltransferase family and specifically catalyzes monomethylation of H4K20me. It is involved in diverse functions in tumorigenesis and metastasis. Therefore, we focused on the contributions of miR-192/215/SET8 axis to the development of GC. In this study, we observe that functionally, SET8 regulated by miR-192/215 is involved in GC-related biological activities. SET8 is also found to trigger oncogene-induced senescence (OIS) in GC in vivo and in vitro, which is dependent on the DDR (DNA damage response) and p53. Our findings reveal that SET8 functions as a negative regulator of metastasis via the OIS-signaling pathway. Taken together, we investigated the functional significance, molecular mechanisms, and clinical impact of miR-192/215/SET8/p53 in GC.
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Affiliation(s)
- Xiaojing Zhang
- grid.263488.30000 0001 0472 9649Guangdong Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Yin Peng
- grid.263488.30000 0001 0472 9649Guangdong Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Yuan Yuan
- grid.263488.30000 0001 0472 9649Guangdong Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Yuli Gao
- grid.263488.30000 0001 0472 9649Guangdong Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Fan Hu
- grid.263488.30000 0001 0472 9649Guangdong Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Jian Wang
- grid.263488.30000 0001 0472 9649Guangdong Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Xiaohui Zhu
- grid.263488.30000 0001 0472 9649Guangdong Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Xianling Feng
- grid.263488.30000 0001 0472 9649Guangdong Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Yulan Cheng
- grid.21107.350000 0001 2171 9311Department of Medicine/GI Division, Johns Hopkins University School of Medicine and Sidney Ki-mmel Comprehensive Cancer Center, Baltimore, MD 21287 USA
| | - Yanjie Wei
- grid.458489.c0000 0001 0483 7922Center for High Performance Computing, Shenzhen Institutes of Advanced Technology, Shenzhen, Guangdong 518000 People’s Republic of China
| | - Xinmin Fan
- grid.263488.30000 0001 0472 9649Guangdong Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Yaohong Xie
- grid.263488.30000 0001 0472 9649Guangdong Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Yansi Lv
- grid.263488.30000 0001 0472 9649Guangdong Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Hassan Ashktorab
- grid.257127.40000 0001 0547 4545Department of Medicine and Cancer Center, Howard University College of Medicine, Washington, DC 20060 USA
| | - Duane Smoot
- Department of Medicine, Meharry Medical Center, Nashville, TN 37208 USA
| | - Song Li
- grid.454883.6Shenzhen Science & Technology Development Exchange Center, Shenzhen Science and Technology Building, Shenzhen, Guangdong 518055 People’s Republic of China
| | - Stephen J. Meltzer
- grid.21107.350000 0001 2171 9311Department of Medicine/GI Division, Johns Hopkins University School of Medicine and Sidney Ki-mmel Comprehensive Cancer Center, Baltimore, MD 21287 USA
| | - Gangqiang Hou
- Department of Medical Image Center, Kangning Hospital, Shenzhen, Guangdong Province, 518000, People's Republic of China.
| | - Zhe Jin
- Guangdong Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, Guangdong, 518060, People's Republic of China.
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10
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Kearney AM, Khan AR. Crystal structure of the Rab-binding domain of Rab11 family-interacting protein 2. Acta Crystallogr F Struct Biol Commun 2020; 76:357-363. [PMID: 32744247 PMCID: PMC7397465 DOI: 10.1107/s2053230x20009164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 07/05/2020] [Indexed: 11/10/2022] Open
Abstract
The small GTPases Rab11, Rab14 and Rab25 regulate membrane trafficking through the recruitment of Rab11 family-interacting proteins (FIPs) to endocytic compartments. FIPs are multi-domain effector proteins that have a highly conserved Rab-binding domain (RBD) at their C-termini. Several structures of complexes of Rab11 with RBDs have previously been determined, including those of Rab11-FIP2 and Rab11-FIP3. In addition, the structures of the Rab14-FIP1 and Rab25-FIP2 complexes have been determined. All of the RBD structures contain a central parallel coiled coil in the RBD that binds to the switch 1 and switch 2 regions of the Rab. Here, the crystal structure of the uncomplexed RBD of FIP2 is presented at 2.3 Å resolution. The structure reveals antiparallel α-helices that associate through polar interactions. These include a remarkable stack of arginine residues within a four-helix bundle in the crystal lattice.
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Affiliation(s)
- Aoife Mairead Kearney
- School of Biochemistry and Immunology, Trinity College Dublin, 152–160 Pearse Street, Dublin D2, Ireland
| | - Amir Rafiq Khan
- School of Biochemistry and Immunology, Trinity College Dublin, 152–160 Pearse Street, Dublin D2, Ireland
- Division of Newborn Medicine, Boston Children’s Hospital, Center for Life Sciences, 3 Blackfan Circle, Boston, MA 02446, USA
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11
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Mishan MA, Tabari MAK, Parnian J, Fallahi J, Mahrooz A, Bagheri A. Functional mechanisms of miR-192 family in cancer. Genes Chromosomes Cancer 2020; 59:722-735. [PMID: 32706406 DOI: 10.1002/gcc.22889] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 07/14/2020] [Accepted: 07/21/2020] [Indexed: 12/11/2022] Open
Abstract
By growing research on the mechanisms and functions of microRNAs (miRNAs, miRs), the role of these noncoding RNAs gained more attention in healthcare. Due to the remarkable regulatory role of miRNAs, any dysregulation in their expression causes cellular functional impairment. In recent years, it has become increasingly apparent that these small molecules contribute to development, cell differentiation, proliferation, apoptosis, and tumor growth. In many studies, the miR-192 family has been suggested as a potential prognostic and diagnostic biomarker and even as a possible therapeutic target for several cancers. However, the mechanistic effects of the miR-192 family on cancer cells are still controversial. Here, we have reviewed each family member of the miR-192 including miR-192, miR-194, and miR-215, and discussed their mechanistic roles in various cancers.
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Affiliation(s)
- Mohammad Amir Mishan
- Ocular Tissue Engineering Research Center, Research Institute for Ophthalmology and Vision Science, Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Amin Khazeei Tabari
- Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran
- USERN Office, Mazandaran University of Medical Sciences, Sari, Iran
| | - Javad Parnian
- Department of Biotechnology, Iranian Research Organization for Science and Technology, Tehran, Iran
| | - Jafar Fallahi
- Molecular Medicine Department, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Abdolkarim Mahrooz
- Department of Clinical Biochemistry and Medical Genetics, Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Abouzar Bagheri
- Department of Clinical Biochemistry and Medical Genetics, Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
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12
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Deng S, Zhang X, Qin Y, Chen W, Fan H, Feng X, Wang J, Yan R, Zhao Y, Cheng Y, Wei Y, Fan X, Ashktorab H, Smoot D, Meltzer SJ, Li S, Li K, Peng Y, Jin Z. miRNA-192 and -215 activate Wnt/β-catenin signaling pathway in gastric cancer via APC. J Cell Physiol 2020; 235:6218-6229. [PMID: 32091625 DOI: 10.1002/jcp.29550] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 01/09/2020] [Indexed: 12/13/2022]
Abstract
Although great progress has been made in surgical techniques, traditional radiotherapy, and chemotherapy, gastric cancer (GC) is still the most common malignant tumor and has a high mortality, which highlights the importance of novel diagnostic markers. Emerging studies suggest that different microRNAs (miRNAs) are involved in tumorigenesis of GC. In this study, we found that miRNA-192 and -215 are significantly upregulated in GC and promote cell proliferation and migration. Adenomatous polyposis coli (APC), a well-known negative regulator in Wnt signaling, has been proved to be a target of miRNA-192 and -215. Inhibition of miRNA-192 or -215 reduced the Topflash activities and repressed the expression of Wnt signaling pathway proteins, while APC small interfering RNAs reversed the inhibitory effects, suggesting that miRNA-192 and -215 activate Wnt signaling via APC. In addition, APC mediates the cell proliferation and migration regulated by miRNA-192 and -215. Furthermore, APC is downregulated in GC tissues and negatively correlated with the expression of miRNA-192 and -215. In summary, miRNA-192 and -215 target APC and function as oncogenic miRNAs by activating Wnt signaling in GC, revealing to be potential therapeutic targets.
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Affiliation(s)
- Shiqi Deng
- Department of Pathology, Guangdong Key Laboratory for Genome Stability & Disease Prevention, The Shenzhen University School of Medicine, Shenzhen, Guangdong, China
| | - Xiaojing Zhang
- Department of Pathology, Guangdong Key Laboratory for Genome Stability & Disease Prevention, The Shenzhen University School of Medicine, Shenzhen, Guangdong, China.,Department of Pathology, Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Health Science Center, Shenzhen University, Shenzhen, China.,Department of Pathology, Guangdong Province Key Laboratory of Molecular Oncologic Pathology, Guangdong, China
| | - Ying Qin
- Department of Gastrointestinal Surgery, Shenzhen Second People's Hospital, Shenzhen, Guangdong, China
| | - Wangchun Chen
- Department of Pathology, Guangdong Key Laboratory for Genome Stability & Disease Prevention, The Shenzhen University School of Medicine, Shenzhen, Guangdong, China
| | - Hu Fan
- Department of Pathology, Guangdong Key Laboratory for Genome Stability & Disease Prevention, The Shenzhen University School of Medicine, Shenzhen, Guangdong, China
| | - Xianling Feng
- Department of Pathology, Guangdong Key Laboratory for Genome Stability & Disease Prevention, The Shenzhen University School of Medicine, Shenzhen, Guangdong, China
| | - Jian Wang
- Department of Pathology and Pathophysiology, The Guangzhou Medical University, Guangzhou, China
| | - Ruibin Yan
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, The Shenzhen Graduate School of Peking University, Shenzhen, Guangdong, China
| | - Yanqiu Zhao
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, The Shenzhen Graduate School of Peking University, Shenzhen, Guangdong, China
| | - Yulan Cheng
- Department of Medicine/GI Division, The Johns Hopkins University School of Medicine and Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Yanjie Wei
- Center for High Performance Computing, Shenzhen Institutes of Advanced Technology, Shenzhen, Guangdong, China
| | - Xinmin Fan
- Department of Pathology, Guangdong Key Laboratory for Genome Stability & Disease Prevention, The Shenzhen University School of Medicine, Shenzhen, Guangdong, China
| | - Hassan Ashktorab
- Department of Medicine and Cancer Center, College of Medicine, Howard University, Washington DC
| | - Duane Smoot
- Department of Medicine, Meharry Medical Center, Nashville, Tennessee
| | - Stephen J Meltzer
- Department of Medicine/GI Division, The Johns Hopkins University School of Medicine and Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Song Li
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, The Shenzhen Graduate School of Peking University, Shenzhen, Guangdong, China
| | - Kuan Li
- Department of Pathology, Guangdong Key Laboratory for Genome Stability & Disease Prevention, The Shenzhen University School of Medicine, Shenzhen, Guangdong, China
| | - Yin Peng
- Department of Pathology, Guangdong Key Laboratory for Genome Stability & Disease Prevention, The Shenzhen University School of Medicine, Shenzhen, Guangdong, China.,Department of Pathology, Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Health Science Center, Shenzhen University, Shenzhen, China
| | - Zhe Jin
- Department of Pathology, Guangdong Key Laboratory for Genome Stability & Disease Prevention, The Shenzhen University School of Medicine, Shenzhen, Guangdong, China.,Department of Pathology, Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Health Science Center, Shenzhen University, Shenzhen, China
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13
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Huang Q, Hou S, Zhu X, Liu S. MicroRNA-192 promotes the development of nasopharyngeal carcinoma through targeting RB1 and activating PI3K/AKT pathway. World J Surg Oncol 2020; 18:29. [PMID: 32013999 PMCID: PMC6998165 DOI: 10.1186/s12957-020-1798-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 01/20/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The dysregulation of microRNAs (miRNAs) has been found in diseases and cancers, including microRNA-192 (miR-192). This study was designed to investigate the role of miR-192 in nasopharyngeal carcinoma (NPC) progression. METHODS The expression levels of miR-192 and some genes were assessed by qRT-PCR and Western blot. The function of miR-192 was investigated through MTT, Transwell, and dual-luciferase reporter assays. RESULTS The expression of miR-192 was increased in NPC tissues, and high miR-192 expression predicted poor prognosis in NPC patients. Functionally, upregulation of miR-192 promoted NPC cell migration, invasion, and growth. Furthermore, miR-192 activated EMT and PI3K/AKT pathway to regulate NPC progression. In addition, miR-192 directly targeted RB1 and suppressed its expression in NPC. Moreover, overexpression of RB1 weakened the promoted effect of miR-192 in NPC. CONCLUSION miR-192 promoted cell viability and metastasis in NPC through suppressing RB1 expression and activating PI3K/AKT pathway.
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Affiliation(s)
- Qingli Huang
- Department of Otorhinolaryngology Head and Neck Surgery, Liaocheng People's Hospital, No.67 Dongchang West Road, Liaocheng, 252000, Shandong Province, People's Republic of China
| | - Sen Hou
- Department of Otolaryngology, Yanggu People's Hospital, Liaocheng, Shandong Province, People's Republic of China
| | - Xiuqing Zhu
- Department of Otolaryngology, Chiping People's Hospital, Liaocheng, Shandong Province, People's Republic of China
| | - Shouzhou Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Liaocheng People's Hospital, No.67 Dongchang West Road, Liaocheng, 252000, Shandong Province, People's Republic of China.
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14
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Wang J, Chen W, Lin H, Zhang J. [Role of miRNA-340 in modulating gastric cancer cell proliferation and bioinformatic analysis]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2019; 39:784-790. [PMID: 31340910 DOI: 10.12122/j.issn.1673-4254.2019.07.06] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVE To investigate the mechanism of miRNA-340 for regulating the proliferation of gastric cancer (GC) cells and predict its interacting circular RNAs (circRNAs), its downstream target genes and the involved signaling pathways. METHODS The differentially expressed miRNAs in GC cell lines were analyzed and screened using miRNA microarrays. The expression level of miRNA-340 in 21 pairs of GC tissues and adjacent normal tissues was detected using real-time PCR. MTT and EdU assays were performed to examine the effect of miRNA-340 on the proliferation ability of HFE145 and BGC-823 cells. We also tested the effect of miRNA-340 inhibition on subcutaneous tumorigenesis of GC cells in a nude mouse model. The downstream target genes of miRNA-340 and the probable signal pathways were predicted online using Targetscan and DAVID database, respectively. The interacting circRNAs of miRNA-340 were analyzed using starBase platform. RESULTS Among the differentially expressed miRNAs, miRNA-340 was significantly down-regulated in GC cell lines. Real-time PCR results showed that the expression of miRNA-340 was significantly lower in GC tissues than in the adjacent tissues (P < 0.05). MTT and EdU cell proliferation assays showed that miRNA-340 overexpression inhibited the proliferation of GC cells in vitro. In the nude mouse models, the proliferation of GC cells transfected with miRNA-340 inhibitor was obviously enhanced. Bioinformatics analysis suggested that miRNA-340 had 21 target genes with 3 or more conserved sites, and these genes were involved in tumorigenesis and invasion. The top 10 circRNAs were selected as the most powerful sponge circRNAs interacting with miRNA-340. CONCLUSIONS miRNA-340 may play the role of a tumor suppressor in tumorigenesis and progression. Overexpression of miRNA-340 suppress the proliferation of GC cells, suggesting its involvement in the development of GC along with multiple circRNAs.
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Affiliation(s)
- Jian Wang
- Department of Pathology, Guangdong Women and Children's Hospital Affiliated to Guangzhou Medical University, Guangzhou 510000, China
| | - Wenjing Chen
- Department of Pathology, Guangdong Women and Children's Hospital Affiliated to Guangzhou Medical University, Guangzhou 510000, China
| | - Huijuan Lin
- Department of Pathology, Guangdong Women and Children's Hospital Affiliated to Guangzhou Medical University, Guangzhou 510000, China
| | - Jiangyu Zhang
- Department of Pathology, Guangdong Women and Children's Hospital Affiliated to Guangzhou Medical University, Guangzhou 510000, China
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15
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A comprehensive analysis of core polyadenylation sequences and regulation by microRNAs in a set of cancer predisposition genes. Gene 2019; 712:143943. [PMID: 31229581 DOI: 10.1016/j.gene.2019.143943] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 06/18/2019] [Accepted: 06/20/2019] [Indexed: 12/27/2022]
Abstract
Two core polyadenylation elements (CPE) located in the 3' untranslated region of eukaryotic pre-mRNAs play an essential role in their processing: the polyadenylation signal (PAS) AAUAAA and the cleavage site (CS), preferentially a CA dinucleotide. Herein, we characterized PAS and CS sequences in a set of cancer predisposition genes (CPGs) and performed an in silico investigation of microRNAs (miRNAs) regulation to identify potential tumor-suppressive and oncogenic miRNAs. NCBI and alternative polyadenylation databases were queried to characterize CPE sequences in 117 CPGs, including 81 and 17 known tumor suppressor genes and oncogenes, respectively. miRNA-mediated regulation analysis was performed using predicted and validated data sources. Based on NCBI analyses, we did not find an established PAS in 21 CPGs, and verified that the majority of PAS already described (74.4%) had the canonical sequence AAUAAA. Interestingly, "AA" dinucleotide was the most common CS (37.5%) associated with this set of genes. Approximately 90% of CPGs exhibited evidence of alternative polyadenylation (more than one functional PAS). Finally, the mir-192 family was significantly overrepresented as regulator of tumor suppressor genes (P < 0.01), which suggests a potential oncogenic function. Overall, this study provides a landscape of CPE in CPGs, which might be useful in development of future molecular analyses covering these frequently neglected regulatory sequences.
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16
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Bioinformatics analysis of prognostic value of TRIM13 gene in breast cancer. Biosci Rep 2019; 39:BSR20190285. [PMID: 30837324 PMCID: PMC6430728 DOI: 10.1042/bsr20190285] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 02/25/2019] [Accepted: 03/04/2019] [Indexed: 12/15/2022] Open
Abstract
Background: Tripartite motif 13 (TRIM13) plays a significant role in various biological processes including cell growth, apoptosis, transcriptional regulation, and carcinogenesis. However, the prognostic significance of TRIM13 gene in breast cancer treatment remains largely unclear. Methods: We performed a bioinformatics analysis of the clinical parameters and survival data as it relates to TRIM13 in breast cancer patients using several online databases including Oncomine, bcGenExMiner, PrognoScan, and UCSC Xena. Results: We found that TRIM13 was lower-expressed in different subtypes of breast cancer with respect to normal tissues. Estrogen receptor and progesterone receptor status were positively correlated with TRIM13 level; whereas, the Scarff–Bloom–Richardson grade, Nottingham prognostic index, nodal status, basal-like status, and triple-negative status were negatively related to TRIM13 expression in breast cancer patients with respect to normal individuals. Lower TRIM13 expression correlated with worse distant metastasis free survival, relapse free survival, disease specific survival, and metastatic relapse free survival. We also confirmed a positive correlation between TRIM13 and RAB11FIP2 gene expression. Conclusion: Bioinformatics analysis revealed that TRIM13 may be adopted as a promising predictive biomarker for prognosis of breast cancer. More in-depth experiments and clinical trials are needed to validate the value of TRIM13 in breast cancer treatment.
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17
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Dong W, Li H, Wu X. Rab11-FIP2 suppressed tumor growth via regulation of PGK1 ubiquitination in non-small cell lung cancer. Biochem Biophys Res Commun 2018; 508:60-65. [PMID: 30471866 DOI: 10.1016/j.bbrc.2018.11.108] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 11/16/2018] [Indexed: 02/07/2023]
Abstract
Mounting evidence has shown that the Rab11-FIP2 has critical roles in cancer cell growth. However, the clinical significance of Rab11-FIP2 in Non-small cell lung cancer (NSCLC) remains to be fully elucidated. In this study, we investigated the expression of Rab11-FIP2 using immunohistochemistry in 150 patients with NSCLC. We found that its expression level in NSCLC was much lower than that in the corresponding adjacent normal tissues. The DNA methylation data revealed that Rab11-FIP2 were significantly hypermethylated in NSCLC. The methylation level in the gene body was negatively correlated with the expression level of Rab11-FIP2 in NSCLC. Furthermore, enforced expression of Rab11-FIP2 dramatically reduced cancer cell proliferation and tumorigenesis, indicating a tumor suppressor role of PGK1 in NSCLC progression. Mechanistic investigations showed that Rab11-FIP2 interacted with the glycolytic kinase PGK1 and promoted its ubiquitination in NSCLC cells, leading to inactivation of the oncogenic AKT/mTOR signaling pathway. Overall, our data indicate that reduced expression of Rab11-FIP2 by DNA hypermethylation plays an important role in NSCLC tumor growth.
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Affiliation(s)
- Wenjie Dong
- Department of Internal Medicine-Oncology, The First Affiliated Hospital, Zhengzhou University, China.
| | - Huixia Li
- Department of Internal Medicine-Oncology, The First Affiliated Hospital, Zhengzhou University, China
| | - Xinai Wu
- Department of Internal Medicine-Oncology, The First Affiliated Hospital, Zhengzhou University, China.
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18
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He B, Chang Y, Yang C, Zhang Z, Xu G, Feng X, Zhuang L. Adenylate cyclase 7 regulated by miR-192 promotes ATRA-induced differentiation of acute promyelocytic leukemia cells. Biochem Biophys Res Commun 2018; 506:543-547. [PMID: 30366671 DOI: 10.1016/j.bbrc.2018.10.125] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 10/20/2018] [Indexed: 12/25/2022]
Abstract
Adenylate cyclase 7 (AC7) has been reported to participate in various biological processes during cancer progression. However, the roles of AC7 in all-trans retinoic acid (ATRA)-induced differentiation of acute promyelocytic leukemia (APL) cells are still unknown. In this study, firstly, our results showed that AC7 affected intracellular cAMP level and influenced ATRA-induced differentiation of APL cells. Secondly, we revealed that miR-192 could directly target AC7 expression and knockdown of miR-192 promoted ATRA-induced APL cell differentiation by regulating AC7 expression. Furthermore, we found that AC7 expression was lower in patients with relapsed APL than that in patients with newly diagnosed APL, while miR-192 expression was relatively higher in patients with relapsed APL. Taken together, our results show that miR-192-mediated AC7 could play important roles in differentiation of APL cells, AC7 and miR-192 might be new biomarkers and therapeutic targets for patients with relapsed APL.
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Affiliation(s)
- Bing He
- Department of General Surgery, The First People's Hospital of Tianmen City, Tianmen, 431700, China
| | - Yanyan Chang
- Department of Haematology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Chao Yang
- Department of Infectious Diseases, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Zhanglin Zhang
- Department of Laboratorial Examination, The First Affiliated Hospital of Nanchang University, 330006, Nanchang, China
| | - Guiping Xu
- Transfusion Department, The Second Affiliated Hospital of Chongqing Medical University, 400010, Chongqing, China
| | - Xianqi Feng
- Department of Haematology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
| | - Likun Zhuang
- Institute of Transplantation Science, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
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