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Valizadeh M, Babaei E, Sharifi R, Yazdanbod A. Restoration of miR-650 leads to down-regulation of KISS1, a possible route involved in overcoming 5-FU resistance and induction of apoptosis in CRC cells in-vitro. Mol Biol Rep 2023; 50:6591-6599. [PMID: 37341919 DOI: 10.1007/s11033-023-08451-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 04/12/2023] [Indexed: 06/22/2023]
Abstract
BACKGROUND Colorectal cancer (CRC) is one of the most common cancers and the fourth leading cause of cancer-related deaths worldwide. We aimed to determine the role of miR-650 in CRC pathogenesis. METHODS In this study, we examined the expression of miR-650 and KISS1 in 80 CRC patients who either received or did not receive chemo agents. For this aim, we assessed the miR-650 and KISS1 expression levels in 80 CRC tissues, 30 of which had no history of chemotherapy. The effect of miR-650 and 5-FU on KISS1 expression was measured using qPCR and Western blotting. Also, the 5- FU effect on miR-650 expression in the CRC cell lines was measured by qRT-PCR. Next, MTT assay and Flowcytometry assays were conducted to determine the role of miR-650 in cell viability and apoptosis. RESULTS The results showed that miR-650 was down-regulated in CRC tissues. However, patients who received 5-FU before surgery showed increased expression of miR-650. The results for KISS1 were insignificant while administering 5-FU to patients preoperatively increased its expression. In-vitro studies showed that 5-FU led to the up-regulation of miR-650 in the SW480 CRC cell line. Furthermore, the administration of miR-650 and 5-FU downregulated KISS1, especially when combined. Moreover, miR-650 with 5-FU significantly reduced cell viability in CRC cell lines by inducing apoptosis. CONCLUSIONS These results indicate that miR-650 has a tumor suppressive function, overcoming 5-FU chemoresistance in CRC, and induces apoptosis probably by alleviating KISS1. These results suggest that miR-650 is a potential contributor to CRC pathogenesis.
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Affiliation(s)
- Mehdi Valizadeh
- Department of Molecular Genetics, Faculty of Basic Sciences, Ahar Branch, Islamic Azad University, Ahar, Iran
| | - Esmaeil Babaei
- Department of Biology, School of Natural Sciences, University of Tabriz, Tabriz, Iran.
| | - Rasoul Sharifi
- Department of Biology, Faculty of Basic Sciences, Ahar Branch, Islamic Azad University, Ahar, Iran
| | - Abbas Yazdanbod
- Department of Internal Medicine, School of Medicine and Allied Medical Sciences, Digestive Diseases Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
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Lin L, Liu X, Cheng X, Li Y, Gearing M, Levey A, Huang X, Li Y, Jin P, Li X. MicroRNA-650 Regulates the Pathogenesis of Alzheimer's Disease Through Targeting Cyclin-Dependent Kinase 5. Mol Neurobiol 2023; 60:2426-2441. [PMID: 36656459 PMCID: PMC10039829 DOI: 10.1007/s12035-023-03224-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 01/06/2023] [Indexed: 01/20/2023]
Abstract
Alzheimer's disease (AD) pathogenesis feature progressive neurodegeneration, amyloid-β plaque formation, and neurofibrillary tangles. Ample evidence has indicated the involvement of epigenetic pathways in AD pathogenesis. Here, we show that the expression of microRNA 650 (miR-650) is altered in brains from AD patients. Furthermore, we found that the processing of primary miR-650 to mature miR-650 is misregulated. Bioinformatic analysis predicted that miR-650 targets the expression of three AD-associated components: Apolipoprotein E (APOE), Presenilin 1 (PSEN1), and Cyclin-Dependent Kinase 5 (CDK5), and we have experimentally confirmed that miR-650 is able to significantly reduce the expression of APOE, PSEN1, and CDK5 in vitro. Importantly, the overexpression of miR-650 was further shown to significantly alter the CDK5 level and ameliorate AD pathologies in APP-PSEN1 transgenic mice. Overall, our results indicate that miR-650 influences AD pathogenesis through regulation of CDK5.
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Affiliation(s)
- Li Lin
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Guangdong Key Laboratory of Nonhuman Primate Models of Human Diseases, Key Laboratory of CNS Regeneration (Ministry of Education), Jinan University, Guangzhou, 510632, China.
| | - Xiaodong Liu
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Guangdong Key Laboratory of Nonhuman Primate Models of Human Diseases, Key Laboratory of CNS Regeneration (Ministry of Education), Jinan University, Guangzhou, 510632, China
| | - Xuejun Cheng
- The Children's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
- The Institute of Translational Medicine, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Yujing Li
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Marla Gearing
- Center for Neurodegenerative Disease, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Allan Levey
- Center for Neurodegenerative Disease, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Xiaoli Huang
- The Children's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
- The Institute of Translational Medicine, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Ying Li
- The Children's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
- The Institute of Translational Medicine, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Peng Jin
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, 30322, USA.
| | - Xuekun Li
- The Children's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.
- The Institute of Translational Medicine, School of Medicine, Zhejiang University, Hangzhou, 310003, China.
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Qian L, Wang Y, Xiong Y, Ren H, Liu S, Chen D, Liu Y. LINC01002 Targets miR-650/FLNA Pathway to Suppress Prostate Cancer Progression. Urol Int 2023; 107:526-538. [PMID: 37040719 DOI: 10.1159/000529947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 02/21/2023] [Indexed: 04/13/2023]
Abstract
INTRODUCTION In view of the vital implication of long noncoding RNAs in tumorigenesis, we possess the aim to determine the action effects and mechanisms of LINC01002 in prostate cancer (PCa). METHODS Expression level of LINC01002, miR-650, or filamin A (FLNA) in PCa tissues and cells was assessed using quantitative real-time PCR or Western blotting. Cell proliferative and migratory capacities were investigated by Cell Counting Kit-8 (CCK-8) and wound healing assays. Cell apoptosis was investigated by the levels of Bax and Bcl-2. Xenograft models were constructed to testify the role of LINC01002 in vivo. The anticipated binding of miR-650 to LINC01002 or FLNA was confirmed by dual-luciferase reporter or RNA binding protein immunoprecipitation assays. RESULTS Relatively poor expression of LINC01002 and FLNA, and high expression of miR-650 were identified in PCa tumor specimens and cells. Ectopic LINC01002 expression restrained PCa cell proliferation/migration and provoked apoptosis in vitro, and blocked solid tumor growth in Xenograft models. MiR-650 was directly targeted by LINC01002, and it also directly bound to FLNA. MiR-650 reintroduction in PCa cells overexpressing LINC01002 or FLNA partly reversed the anticancer effects of LINC01002 or FLNA overexpression, thus recovering PCa cell proliferation/migration and repressing apoptosis. CONCLUSION LINC01002 deregulation was linked to PCa development. LINC01002 exerted potential anticancer effects in PCa via targeting the miR-650/FLNA pathway, which, at least in part, provided a basis for the involvement of LINC01002 as a therapeutic target in PCa.
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Affiliation(s)
- Li Qian
- Department of Clinical Laboratory, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Yue Wang
- Department of Clinical Laboratory, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Yuzhen Xiong
- Department of Clinical Laboratory, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Hetian Ren
- Department of Clinical Laboratory, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Shili Liu
- Department of Clinical Laboratory, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Dandan Chen
- Department of Clinical Laboratory, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Yang Liu
- Department of Clinical Laboratory, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
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Li W, Ke C, Yang C, Li J, Chen Q, Xia Z, Xu J. LncRNA DICER1-AS1 promotes colorectal cancer progression by activating the MAPK/ERK signaling pathway through sponging miR-650. Cancer Med 2023; 12:8351-8366. [PMID: 36708020 PMCID: PMC10134332 DOI: 10.1002/cam4.5550] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 12/03/2022] [Accepted: 12/08/2022] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Colorectal cancer (CRC) is a disease with high morbidity and mortality rates globally. Long noncoding RNAs (lncRNAs) play a fundamental role in tumor progression, and increasing attention has been paid to their role in CRC. This study aimed to determine the function of lncRNA DICER1 antisense RNA 1 (DICER1-AS1) in CRC and confirm its potential regulatory mechanisms in CRC. METHODS The publicly available dataset was used to assess DICER1-AS1 function and expression in CRC. RT-qPCR or western blot assays were performed to verify DICER1-AS1, miR-650, and mitogen-activated protein kinase 1 (MAPK1) expression in CRC cells or tissues. To determine the function of DICER1-AS1, we performed CCK-8, colony formation, transwell, cell cycle, and in vivo animal assays. Using RNA sequence analysis, luciferase reporter assays, and bioinformatics analysis, the connection between DICER1-AS1, MAPK1, and miR-650 was investigated. RESULTS DICER1-AS1 was significantly upregulated in CRC tissue compared to normal colon tissue. High DICER1-AS1 expression suggested a poor prognosis in CRC patients. Functionally, upregulation of DICER1-AS1 effectively promoted CRC proliferation, migration, and invasion ex vivo and tumor progression in vivo. Mechanistically, DICER1-AS1 functions as a competitive endogenous RNA (ceRNA) that sponges miR-650 to upregulate MAPK1, promotes ERK1/2 phosphorylation, and sequentially activates the MAPK/ERK signaling pathway. CONCLUSION Our investigations found that upregulation of DICER1-AS1 activates the MAPK/ERK signaling pathway by sponging miR-650 to promote CRC progression, revealing a possible clinically significant biomarker and therapeutic target.
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Affiliation(s)
- Wenfei Li
- Department of Gastroenterology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Chuanfeng Ke
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Cuiyan Yang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jieyao Li
- Department of Gastroenterology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Qikui Chen
- Department of Gastroenterology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Zhongsheng Xia
- Department of Gastroenterology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Jihao Xu
- Department of Gastroenterology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
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Wang R, Li H, Han Y, Li L. Knockdown of circ_0025908 inhibits proliferation, migration, invasion, and inflammation while stimulates apoptosis in fibroblast-like synoviocytes by regulating miR-650-dependent SCUBE2. Autoimmunity 2022; 55:473-484. [PMID: 35904110 DOI: 10.1080/08916934.2022.2102164] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
BACKGROUND Circular RNAs (circRNAs) are demonstrated to play vital roles in human diseases, including rheumatoid arthritis (RA). Therefore, this research aimed to explore the effects of hsa_circRNA_0025908 (circ_0025908) on RA. METHODS RNA expression of circ_0025908, microRNA-650 (miR-650), and Signal peptide-CUBepidermal growth factor-like containing protein 2 (SCUBE2) were assessed by real-time quantitative polymerase chain reaction; protein expression of SCUBE2, apoptosis- and invasion-related proteins was evaluated by western blot assay. Functional assays were performed using 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyl-2H-tetrazol-3-ium bromide, 5-ethynyl-2'-deoxyuridine, transwell, flow cytometry, and enzyme linked immunosorbent assay assays. Dual-luciferase reporter, RNA immunoprecipitation, and RNA pull-down assays confirmed the interaction relationship among circ_0025908, miR-650, and SCUBE2. RESULTS Circ_0025908 was overexpressed in synovial tissues and fibroblast-like synoviocytes (FLS) from RA patients. Inhibition of circ_0025908 repressed proliferation, migration, invasion, inflammation, and cell cycle progression, while induced apoptosis in the FLS isolated from RA patients (FLS-RA), accompanied with increased Bax, cleaved caspase-3 and E-cadherin, but declined Bcl-2, N-cadherin and Vimentin. MiR-650 was a target of circ_0025908, and SCUBE2 was a target for miR-650. Silencing of miR-650 could overturned above effects of circ_0025908 knockdown in FLS-RA, whereas its overexpression could mimic those effects by downregulating SCUBE2. Additionally, SCUBE2 expression could be positively regulated by circ_0025908 and inversely regulated by miR-650. Notably, Pearson's correlation analysis confirmed the linear correlation among circ_0025908, miR-650 and SCUBE2 in these RA tissues. CONCLUSION Circ_0025908 inhibition can suppress FLS-RA dysfunctions through targeting miR-650/SCUBE2 axis, suggesting a new potential therapeutic clue for RA patients.
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Affiliation(s)
- Ronghua Wang
- Department of Rheumatology and Immunology, Xingtai People's Hospital, Xingtai, Hebei Province, China
| | - Hongbo Li
- Department of Anesthesiology, Weifang People's Hospital, Weifang, China
| | - Yunning Han
- Department of Pain, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Lei Li
- Department of Pain, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
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An J, Guo X, Yan B. DICER-AS1 functions as competing endogenous RNA that targets CSR1 by sponging microRNA-650 and suppresses gastric cancer progression. J Int Med Res 2021; 49:3000605211041466. [PMID: 34586953 PMCID: PMC8485291 DOI: 10.1177/03000605211041466] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 07/20/2021] [Indexed: 01/07/2023] Open
Abstract
OBJECTIVE This study explored the functional interactions between the long non-coding RNA DICER-AS1 and the cellular stress response 1 (CSR1) gene in gastric cancer. METHODS Quantitative polymerase chain reaction (qPCR) and western blotting were used to measure DICER-AS1, CSR1, and miR-650 expression levels. Gastric cancer cell line proliferation and migration abilities were analyzed using the MTT and transwell migration and invasion assays, respectively. Bioinformatic analysis and dual luciferase reporter assays were employed to study the functional interactions among miR-650, DICER-AS1, and CSR1. RESULTS DICER-AS1 and CSR1 expression levels were significantly decreased in gastric cancer tissues compared with normal tissues, and qPCR analysis showed that miR-650 was upregulated in gastric cancer tissues. Bioinformatic analysis and dual luciferase reporter assays revealed that DICER-AS1 functioned as a competing endogenous RNA that sponged miR-650, which in turn regulated CSR1 expression. Importantly, ectopic DICER-AS1 and CSR1 expression inhibited cell proliferation and migration in vitro and suppressed xenograft tumorgenicity in vivo. CONCLUSIONS These results suggest that DICER-AS1 functions as a competing endogenous RNA that regulates miR-650 to suppress proliferation and migration of gastric cancer cells by targeting CSR1. These findings indicate that targeting DICER-AS1 and miR-650 could be a novel treatment for gastric cancer.
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Affiliation(s)
- Junyan An
- Department of Gastroenterology, Weifang People’s Hospital, China
| | - Xiaoling Guo
- Infectious Diseases Department, Weifang People’s Hospital, China
| | - Bingli Yan
- Department of Gastroenterology, Weifang People’s Hospital, China
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7
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Gao Q, Huang Q, Li F, Luo F. LncRNA MCTP1-AS1 Regulates EMT Process in Endometrial Cancer by Targeting the miR-650/SMAD7 Axis. Onco Targets Ther 2021; 14:751-761. [PMID: 33568915 PMCID: PMC7868288 DOI: 10.2147/ott.s240010] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 02/26/2020] [Indexed: 12/21/2022] Open
Abstract
Background Long noncoding RNAs (lncRNAs) play critical roles in the pathogenesis of several diseases, especially some kinds of cancer. This study aimed to investigate the expression of MTCP1-AS1 and its effects on endometrial cancer (EC). Methods MTCP1-AS1 expression level was determined in human EC tissues and cell lines by qRT-PCR. The role of MTCP1-AS1 on EC cell proliferation, migration, invasion and epithelial to mesenchymal transition (EMT) was detected by CCK8, wound-healing assay, transwell assay and Western blot, respectively. Moreover, luciferase reporter assay and RNA-binding protein immunoprecipitation (RIP) assay were performed to verify the targeting relationship between miR-650, MCTP1-AS1 and SMAD7 in EC cells. Results Our data showed that MCTP1-AS1 expression was downregulated in EC tissues and cell lines. Overexpression of MCTP1-AS1 inhibited cell proliferation, migration, invasion and EMT process of EC cells. Moreover, MCTP1-AS1 was proved to be the target of miR-650 and reversely correlated with its expression. In addition, MCTP1-AS1 reversed the effect of miR-650 on the EC cells, which might be associated with the role of SMAD7. Moreover, Western blot showed siRNA-SMAD7 transfection could rescue the repressed TGF-β/SMAD pathway induced by MCTP1-AS1 in EC cells. Conclusion Taken together, these data suggested that lncRNA MCTP1-AS1 inhibited cell proliferation, migration, invasion and EMT process of EC cells via targeting the miR-650/SMAD7 axis and it has the potential to be explored as a therapeutic target for the treatment of EC in the future.
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Affiliation(s)
- Qin Gao
- Obstetrics and Gynecology of Pu Ren Hospital in Wuhan, Wuhan, 430081, People's Republic of China
| | - Qin Huang
- Obstetrics and Gynecology of Pu Ren Hospital in Wuhan, Wuhan, 430081, People's Republic of China
| | - Fangbing Li
- Obstetrics and Gynecology of Pu Ren Hospital in Wuhan, Wuhan, 430081, People's Republic of China
| | - Fang Luo
- Obstetrics and Gynecology of Pu Ren Hospital in Wuhan, Wuhan, 430081, People's Republic of China
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Liu W, Hu X, Mu X, Tian Q, Gao T, Ge R, Zhang J. ZFPM2-AS1 facilitates cell proliferation and migration in cutaneous malignant melanoma through modulating miR-650/NOTCH1 signaling. Dermatol Ther 2021; 34:e14751. [PMID: 33406278 DOI: 10.1111/dth.14751] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 12/30/2020] [Indexed: 02/06/2023]
Abstract
Aberrant expression of long non-coding RNA (lncRNA) zinc finger protein, FOG family member 2 antisense RNA 1 (ZFPM2-AS1) has been identified in many tumors, but its role in cutaneous malignant melanoma remains largely obscure. Our present study was intended to unveil the role and potential mechanism of ZFPM2-AS1 in cutaneous malignant melanoma. RT-qPCR was utilized to analyze ZFPM2-AS1 expression in cutaneous malignant melanoma cells. Cell counting kit-8 (CCK-8), colony formation, flow cytometry, and transwell analyses were utilized to assess ZFPM2-AS1 function on cell proliferation, apoptosis, and migration. Luciferase reporter, RNA immunoprecipitation, and RNA-pull down assays were applied to probe the regulatory mechanism of ZFPM2-AS1 in cutaneous malignant melanoma cells. Up-regulation of ZFPM2-AS1 was discovered in cutaneous malignant melanoma cells. ZFPM2-AS1 deletion restrained cell proliferation, migration, and elevated cell apoptosis in cutaneous malignant melanoma. ZFPM2-AS1 regulated notch receptor 1 (NOTCH1) to activate the NOTCH pathway. ZFPM2-AS1 acted as a competing endogenous RNA (ceRNA) to affect NOTCH1 expression via sponging miR-650. Collectively, ZFPM2-AS1 exerted an oncogenic role in cutaneous malignant melanoma progression via targeting miR-650/NOTCH1 signaling. Our study might offer a novel sight for cutaneous malignant melanoma treatment.
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Affiliation(s)
- Wenli Liu
- Department of Dermatology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xiaoding Hu
- Department of Dermatology, the Second People's Hospital of Changzhi, Changzhi, China
| | - Xin Mu
- Department of Dermatology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Qiong Tian
- Department of Dermatology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Tianyuan Gao
- Department of Dermatology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Rui Ge
- Department of Dermatology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jian Zhang
- Department of Dermatology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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López-Huerta E, Fuentes-Pananá EM. A Bioinformatic Pipeline Places STAT5A as a miR-650 Target in Poorly Differentiated Aggressive Breast Cancer. Int J Mol Sci 2020; 21:E7720. [PMID: 33086498 DOI: 10.3390/ijms21207720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 10/13/2020] [Accepted: 10/15/2020] [Indexed: 11/17/2022] Open
Abstract
Breast cancer (BRCA) is a leading cause of mortality among women. Tumors often acquire aggressive features through genomic aberrations affecting cellular programs, e.g., the epithelial to mesenchymal transition (EMT). EMT facilitates metastasis leading to poor prognosis. We previously observed a correlation between an amplification of miR-650 (Amp-650) and EMT features in BRCA samples isolated from Mexican patients. In this study, we explored the cBioportal database aiming to extend that observation and better understand the importance of Amp-650 for BRCA aggressiveness. We found that Amp-650 is more frequent in aggressive molecular subtypes of BRCA, as well as in high grade poorly differentiated tumors, which we confirmed in an external miRNA expression database. We performed differential expression analysis on samples harboring Amp-650, taking advantage of gene target prediction tools and tumor suppressor gene databases to mine several hundreds of differentially underexpressed genes. We observed STAT5A as a likely putative target gene for miR-650 in aggressive poorly differentiated BRCA. Samples with both Amp-650 and low expression of STAT5A had less overall survival than samples with either or none of the alterations. No target gene has been described for miR-650 in BRCA, thus, this bioinformatic study provides valuable information that should be corroborated experimentally.
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Cao Y, Gao W, Tang H, Wang T, You C. Long Non-coding RNA TALNEC2 Aggravates Cerebral Ischemia/Reperfusion Injury via Acting as a Competing Endogenous RNAs for miR-650 to Target Apoptotic Peptidase Activating Factor 1. Neuroscience 2020; 458:64-76. [PMID: 33075457 DOI: 10.1016/j.neuroscience.2020.10.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 10/05/2020] [Accepted: 10/06/2020] [Indexed: 02/08/2023]
Abstract
Increasing evidence has indicated that long non-coding RNAs (lncRNAs) play a vital role for adjusting RNA transcripts as competing endogenous RNAs (ceRNAs) for microRNAs (miRNAs). The present study was intended to explore the probable regulation of lncRNA TALNEC2 in ischemic stroke. In this study, we measured the up-regulation of TALNEC2 and down-regulation of miR-650 in mice brains after cerebral ischemia/reperfusion (I/R) operation and in cultured neuroblastoma cells of neuro-2A (N2a) treated with oxygen glucose deprivation/reoxygenation (OGD/R). Then we verified the common predicted binding sites of miR-650 in TALNEC2 and 3'-UTR of apoptotic peptidase activating factor 1 (APAF1), a critical regulator in ischemic neuronal death, with bioinformatics. Overexpression of miR-650 reduced N2a cell apoptosis induced by OGD/R. MiR-650 was confirmed to be a directly target of APAF1 by luciferase reporter assay. It was found that TALNEC2 played a critical role as a ceRNA for miR-650 and bound directly to miR-650 to mediate the APAF1. In result, overexpression of TALNEC2 antagonized the inhibition impact of miR-650 on APAF1 expression and N2a cell apoptosis induced by OGD/R, while TALNEC2 knockdown aggravated the impact. Furthermore, TALNEC2 knockdown reversed brain injury and neurological deficits induced by I/R in vivo. In conclusion, we verified a TALNEC2/miR-650/APAF1 signaling pathway as a key mechanism monitoring cerebral I/R injury.
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Affiliation(s)
- Yi Cao
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu City, Sichuan Province 610041, PR China
| | - Weina Gao
- Department of Intensive Care Unit, 363 Hospital, Southwest Medical University, Chengdu City, Sichuan Province 646000, PR China
| | - Hui Tang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu City, Sichuan Province 610041, PR China
| | - Tinghua Wang
- Institute of Neurological Disease, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu City, Sichuan Province 610041, PR China
| | - Chao You
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu City, Sichuan Province 610041, PR China.
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Jin S, Li X, Dai Y, Li C, Wang D. NF-κB-mediated miR-650 plays oncogenic roles and activates AKT/ERK/NF-κB pathways by targeting RERG in glioma cells. Cell Oncol (Dordr) 2020; 43:1035-1048. [PMID: 32986146 DOI: 10.1007/s13402-020-00533-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/15/2020] [Indexed: 12/18/2022] Open
Abstract
PURPOSE Glioma is the most common cancer in the central nervous system and has a high mortality rate. Despite advances that have been made in the treatment of glioma, its prognosis still remains poor. Dysregulation of miRNAs has been reported in many cancers, including glioma. Here, we set out to assess the role of miR-650 in glioma, including its diagnostic and therapeutic potential. METHODS miR-650 and RAS-like estrogen-regulated growth inhibitor (RERG) expression levels were analyzed using qRT-PCR in primary glioma tissues and cell lines. Cell Counting Kit-8, 5-ethynyl-2'-deoxyuridine, colony formation, Western blotting, scratch wound healing, Transwell, adhesion, autophagy, immunofluorescence, luciferase reporter, electrophoretic mobility shift, tumor xenograft and flow cytometry assays were employed to investigate the mechanisms underlying the effect of miR-650 and RERG on glioma development. RESULTS miR-650 was found to be up-regulated in glioma tissues and cell lines compared to non-cancerous brain tissues and neural progenitor cells, respectively. We also found that miR-650 promoted cell proliferation, migration and invasion in glioma cells, and enhanced glioma tumor formation and growth in vivo. We identified and validated RERG as a direct target of miR-650. RERG was shown to act as a tumor suppressor in glioma cells, and its suppressor roles were rescued by miR-650. We found that nuclear factor (NF)-κB bound to the promoter of miR-650 and enhanced its expression. PH domain and leucine rich repeat protein phosphatase 2 (PHLPP2), as a co-factor of the RERG/PHLPP2 complex, mediated miR-650-induced activation of the protein kinase B/extracellular-signal-regulated kinase/NF-κB signaling pathways. CONCLUSIONS Our data revealed novel functional roles for miR-650 in glioma development and may provide new avenues for future clinical applications.
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Affiliation(s)
- Shiguang Jin
- Clinical Medical College, Yangzhou University, Yangzhou, 225001, Jiangsu, China.,The Second Xiangya Hospital of Central South University, Changsha, 410008, Hunan, China
| | - Xueping Li
- Nanjing Hospital Affiliated to Nanjing Medical University, The First Hospital of Nanjing, Nanjing, 210029, Jiangsu, China
| | - Yan Dai
- Clinical Medical College, Yangzhou University, Yangzhou, 225001, Jiangsu, China
| | - Cheng Li
- Clinical Medical College, Yangzhou University, Yangzhou, 225001, Jiangsu, China
| | - Daxin Wang
- Clinical Medical College, Yangzhou University, Yangzhou, 225001, Jiangsu, China.
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12
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Prendecki M, Florczak-Wyspianska J, Kowalska M, Ilkowski J, Grzelak T, Bialas K, Kozubski W, Dorszewska J. APOE genetic variants and apoE, miR-107 and miR-650 levels in Alzheimer's disease. Folia Neuropathol 2019; 57:106-16. [PMID: 31556571 DOI: 10.5114/fn.2019.84828] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative dementia in adults. Pathogenesis of AD depends on various factors, including APOE genetic variants, apolipoprotein E (apoE) phenotype and oxidative stress, which may promote both DNA and RNA damage, including non-coding RNA (ncRNA). Among ncRNAs, microRNA (miRNA) is known to contribute to pathologic processes in AD. The aim of the study was to analyse the plasma concentration of apoE by ELISA as well as the plasma levels of miR-107 and miR-650 by qPCR in relation to APOE genetic variants and clinical features including the age of onset and dementia severity in 64 AD patients and 132 controls. Our data showed that a low apoE plasma concentration was a risk factor for developing AD (OR = 5.18, p = 6.58E-06) and was particularly pronounced in severe dementia (p < 0.001) and correlated with cognitive functions (R = 0.295, p = 0.020), similarly as the level of miR-650 (R = 0.385, p = 0.033). The presence of APOE E4 allele in both AD patients and controls led to a reduction in apoE, while APOE E3/E3 genotype was associated with an increased apoE concentration and level of miR-107 in AD (p < 0.05) which was inversely correlated with the number of APOE E4 alleles (R = -0.448, p = 0.009). Additionally, patients with the onset at 60-69 years of age showed a reduced level of miR-107 (p < 0.05, as compared to AD above 80 years of age). Changed levels of plasma apoE, miR-107 and miR-650 may be a marker of the neurodegenerative process in the course of AD, associated with amyloid β metabolism and inordinate cell cycle.
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13
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Zhao Y, Zhu Z, Shi S, Wang J, Li N. Long non-coding RNA MEG3 regulates migration and invasion of lung cancer stem cells via miR-650/SLC34A2 axis. Biomed Pharmacother 2019; 120:109457. [PMID: 31585300 DOI: 10.1016/j.biopha.2019.109457] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 09/09/2019] [Accepted: 09/12/2019] [Indexed: 12/24/2022] Open
Abstract
Long non-coding RNA maternally expressed gene 3 (MEG3) is related to the occurrence and development of non-small cell lung cancer (NSCLC). However, the function and underlying molecular mechanisms of MEG3 in lung cancer stem cells (LCSCs) are still unclear. LCSCs were determined in lung cancer cells using fluorescence-activated cell sorting (FACS). qRT-PCR and western blot were performed to examine the expressions of MEG3, miR-650, solute carrier family 34 member 2 (SLC34A2), octamer-binding transcription factor 4 (Oct4), and CD133. Sphere assay was employed to evaluate sphere-forming ability. Cell migration and invasion were analyzed by Transwell assay. The relationships among MEG3, miR-650, and SLC34A2 were validated by luciferase reporter, RIP, and RNA pulldown assays. We found MEG3 was downregulated in LCSCs. MEG3 depletion strengthened stem cell-like characteristics and sphere-forming ability in LCCs. Upregulation of MEG3 suppressed migration and invasion in LCCs and LCSCs. miR-650 was bound to MEG3 and upregulated in LCSCs. miR-650 inhibitor alleviated si-MEG3-induced promotion of stem cell-like characteristics in lung cancer cells (LCCs) H1299. Furthermore, miR-650 mimic attenuated the MEG3 upregulation-mediated inhibition of migration and invasion. In addition, SLC34A2 was a target of miR-650 and downregulated in LCSCs. miR-650 mimic induced stem cell-like characteristics in LCCs, which was weakened by overexpression of SLC34A2. In contrast, the repression of SLC34A2 mitigated the miR-650 silencing-induced inhibition of migration and invasion in LCCs and LCSCs. Besides, MEG3 regulated SLC34A2 expression by sponging miR-650. Importantly, SLC34A2 weakened MEG3-mediated stem cell-like state and cell metastasis. Our data suggested MEG3 was involved in stem cell-like state of LCCs and curbed migration and invasion through miR-650/SLC34A2 axis in NSCLC.
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Affiliation(s)
- Yongjuan Zhao
- Department of Respiratory, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Zhenxing Zhu
- Department of Hematology and Oncology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Shaomin Shi
- Department of Respiratory, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Jing Wang
- Department of Respiratory, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Ning Li
- Department of Respiratory, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China.
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14
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Tang X, Ding Y, Wang X, Wang X, Zhao L, Bi H. miR-650 promotes non-small cell lung cancer cell proliferation and invasion by targeting ING4 through Wnt-1/β-catenin pathway. Oncol Lett 2019; 18:4621-4628. [PMID: 31611970 PMCID: PMC6781663 DOI: 10.3892/ol.2019.10805] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 07/30/2019] [Indexed: 12/14/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) is the most frequent cancer worldwide with a poor 5-year survival. miR-650 acts as an oncogene and regulates tumor progress in various cancers. Molecular mechanisms of miR-650 in NSCLC cell proliferation and invasion was studied. The mRNA levels of miR-650 and special genes were calculated using RT-qPCR. MTT and transwell assays were applied to measure the proliferative and invasive ability. Kaplan-Meier method was used to assess the survival of NSCLC patients. miR-650 was upregulated in NSCLC and upregulation of miR-650 was associated with a poor overall survival of NSCLC, while the results of ING4 demonstrated the opposite results. miR-650 promoted proliferation and invasion through Wnt-1/β-catenin pathway by targeting inhibitor of growth 4 (ING4) in A549 cells. ING4 was a direct target gene of miR-650 and the expression of ING4 was mediated by exogenous altering the expression of miR-650. Remarkably, alterations of ING4 expression eliminated the functions of miR-650 on the proliferation and metastasis of NSCLC. miR-650 enhanced A549 cell proliferation and invasion through Wnt-1/β-catenin pathway by directly targeting the 3'-UTR of ING4 mRNA. The newly identified miR-650/ING4 axis provides a novel insight into the pathogenesis of NSCLC.
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Affiliation(s)
- Xiangqin Tang
- Department of Oncology, Jining No. 1 People's Hospital, Jining, Shandong 272011, P.R. China
| | - Yanjun Ding
- Department of General Surgery, People's Hospital of Chiping, Chiping, Shandong 252100, P.R. China
| | - Xiaoqing Wang
- First Ward, Department of Neurology, The Affiliated Central Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Xiuzhen Wang
- Department of Clinical Nutrition, People's Hospital of Zhangqiu Area, Jinan, Shandong 250200, P.R. China
| | - Lin Zhao
- Department of Respiratory Medicine, People's Hospital of Rizhao, Rizhao, Shandong 276826, P.R. China
| | - Hongmei Bi
- Department of Respiratory Medicine, The Third People's Hospital of Qingdao, Qingdao, Shandong 266041, P.R. China
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15
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Orlandella FM, Mariniello RM, Iervolino PLC, Imperlini E, Mandola A, Verde A, De Stefano AE, Pane K, Franzese M, Esposito S, Basolo F, Orrù S, Salvatore G. miR-650 promotes motility of anaplastic thyroid cancer cells by targeting PPP2CA. Endocrine 2019; 65:582-594. [PMID: 30927143 DOI: 10.1007/s12020-019-01910-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 03/18/2019] [Indexed: 12/12/2022]
Abstract
PURPOSE Aberrant expression of miRNAs is crucial in several tissues tumorigenesis including thyroid. Recent studies demonstrated that miR-650 plays different role depending on the cancer type. Herein, we investigated the role of miR-650 in thyroid carcinoma. METHODS The expression of miR-650 was analyzed in human thyroid tissues by q-RT-PCR. Anaplastic (8505C, CAL62, SW1736) and papillary (TPC-1) thyroid cancer cell lines were used to dissect the role of miR-650 on malignant hallmarks of transformation. Label-free proteomic analysis was exploited to unravel the targets of miR-650, while luciferase reporter assay and functional experiments were performed to confirm a selected target. Spearman's rank correlation test was used to assess the association between miR-650 and its target in human thyroid cancer tissues. RESULTS miR-650 is over-expressed in anaplastic (ATC) thyroid carcinoma where it enhances cell migration and invasion. Proteomic label-free and bioinformatics analysis revealed that the serine-threonine protein phosphatase 2 catalytic subunit alpha (PPP2CA) is a target of miR-650; these finding were confirmed by luciferase assay. Restoration of PPP2CA mRNA, deprived of its 3'UTR, is able to revert the malignant phenotype induced by miR-650 in HEK-293 cells. Importantly, PPP2CA is down-regulated in ATC tissues and is inversely correlated with miR-650. CONCLUSIONS miR-650 displayed oncogenic activity in ATC cells through targeting PPP2CA phosphatase. These results suggest that miR-650/PPP2CA axis could be modulated to interfere with motile ability of thyroid carcinoma cells.
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Affiliation(s)
| | - Raffaela Mariarosaria Mariniello
- CEINGE - Biotecnologie Avanzate s.c. a r.l., Via Gaetano Salvatore 486, 80145, Napoli, Italy
- Dipartimento di Scienze Motorie e del Benessere, Università "Parthenope", Via Medina 40, 80133, Napoli, Italy
| | | | - Esther Imperlini
- IRCCS SDN, Napoli, Via Emanuele Gianturco 113, 80143, Napoli, Italy
| | - Annalisa Mandola
- CEINGE - Biotecnologie Avanzate s.c. a r.l., Via Gaetano Salvatore 486, 80145, Napoli, Italy
- Dipartimento di Scienze Motorie e del Benessere, Università "Parthenope", Via Medina 40, 80133, Napoli, Italy
| | - Anna Verde
- CEINGE - Biotecnologie Avanzate s.c. a r.l., Via Gaetano Salvatore 486, 80145, Napoli, Italy
| | - Anna Elisa De Stefano
- CEINGE - Biotecnologie Avanzate s.c. a r.l., Via Gaetano Salvatore 486, 80145, Napoli, Italy
- Dipartimento di Scienze Motorie e del Benessere, Università "Parthenope", Via Medina 40, 80133, Napoli, Italy
| | - Katia Pane
- IRCCS SDN, Napoli, Via Emanuele Gianturco 113, 80143, Napoli, Italy
| | - Monica Franzese
- IRCCS SDN, Napoli, Via Emanuele Gianturco 113, 80143, Napoli, Italy
| | - Silvia Esposito
- CEINGE - Biotecnologie Avanzate s.c. a r.l., Via Gaetano Salvatore 486, 80145, Napoli, Italy
| | - Fulvio Basolo
- Dipartimento di Patologia Chirugica, Medica, Molecolare e dell' Area Critica dell' Università di Pisa, 56126, Pisa, Italy
| | - Stefania Orrù
- IRCCS SDN, Napoli, Via Emanuele Gianturco 113, 80143, Napoli, Italy
- Dipartimento di Scienze Motorie e del Benessere, Università "Parthenope", Via Medina 40, 80133, Napoli, Italy
| | - Giuliana Salvatore
- IRCCS SDN, Napoli, Via Emanuele Gianturco 113, 80143, Napoli, Italy.
- Dipartimento di Scienze Motorie e del Benessere, Università "Parthenope", Via Medina 40, 80133, Napoli, Italy.
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16
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Xu X, Zhu X, Wang C, Li Y, Fan C, Kao X. microRNA-650 promotes inflammation induced apoptosis of intestinal epithelioid cells by targeting NLRP6. Biochem Biophys Res Commun 2019; 517:551-556. [PMID: 31399193 DOI: 10.1016/j.bbrc.2019.06.077] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 06/15/2019] [Indexed: 12/11/2022]
Abstract
Ulcerative colitis (UC), a serious threat to public health, is one of the main forms of inflammatory bowel disease, whereas the molecular mechanisms underlying ulcerative colitis induced by inflammation still remain elusive. NPLR6 gene is previously shown to regulate intestinal homeostasis and regulate the colonic microbial ecology. Here, we report that microRNA-650 (miR-650) plays an important role in the pathogenesis of UC as an upstream regulator of NPLR6 gene. MiR-650 is proved overexpressed in the inflamed mucosa of patients with ulcerative colitis and the DSS induced colitis model mice by qRT-PCR. Over-expression of miR-650 leads to increased apoptosis of Caco-2 and IEC-6 cells, and the DSS-induced mice aggravation, while knock-down of miR-650 shows opposite effects. Through constructing luciferase reporter genes containing 3'-untranslated regions of NLRP6, we further demonstrate that miR-650 inhibits NLRP6 through binding to its 3'-untranslated regions. Overexpression of NLRP6 in Caco-2 and IEC-6 cells suppress the increase apoptosis induced by miR-650 overexpression. Overall, the findings of this study indicate the role of miR-650 in ulcerative colitis, which provides a new target for therapeutic treatment.
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Affiliation(s)
- Xingwei Xu
- Jinling Hospital Research Institute of General Surgery, Nanjing University, School of Medicine, Nanjing, Jiangsu Province, China.
| | - Xi Zhu
- Jinling Hospital Research Institute of General Surgery, Nanjing University, School of Medicine, Nanjing, Jiangsu Province, China.
| | - Chenyang Wang
- Jinling Hospital Research Institute of General Surgery, Nanjing University, School of Medicine, Nanjing, Jiangsu Province, China
| | - Yang Li
- Jinling Hospital Research Institute of General Surgery, Nanjing University, School of Medicine, Nanjing, Jiangsu Province, China
| | - Chaogang Fan
- Jinling Hospital Research Institute of General Surgery, Nanjing University, School of Medicine, Nanjing, Jiangsu Province, China
| | - Xiaoming Kao
- Jinling Hospital Research Institute of General Surgery, Nanjing University, School of Medicine, Nanjing, Jiangsu Province, China.
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17
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Han LL, Yin XR, Zhang SQ. miR-650 Promotes the Metastasis and Epithelial-Mesenchymal Transition of Hepatocellular Carcinoma by Directly Inhibiting LATS2 Expression. Cell Physiol Biochem 2018; 51:1179-1192. [PMID: 30481780 DOI: 10.1159/000495495] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 11/16/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Previous studies have confirmed that microRNAs are involved in the metastasis and epithelial-mesenchymal transition (EMT) of malignancies. In this study, we examined whether miR-650 promotes the migration, invasion, and EMT of hepatocellular carcinoma (HCC) cells by targeting the large tumor suppressor kinase 2 gene (LATS2). METHODS qRT-PCR was used to detect expression of miR-650 in HCC tissues and paired normal tissues. MTT and Transwell assay were used to observe the effect of miR-650 on proliferation, migration and invasion of HCC cells. Western blot assay and Immunohistochemistry were performed to demonstrate association between miR-650 expression level and epithelial-mesenchymal transition (EMT) related protein. Mechanistically, Reporter luciferase assay was performed to reveal whether large tumor suppressor kinase 2 (LATS2) was a direct target of miR-650 in HCC cells. RESULTS We observed that miR-650 levels were largely up-regulated in HCC tissues, and that the increased expression was closely associated with the adverse clinical features of HCC patients. Additionally, the expression of LATS2, which was identified as a direct target of miR-650, can counteract the effects of miR-650 in HCC. Furthermore, we demonstrated that high miR-650 expression levels and low LATS2 expression levels in tumors may indicate a poor prognosis for HCC patients. CONCLUSION In conclusion, the miR-650/LATS2 pathway may serve as a novel prognostic biomarker and an attractive therapeutic target for HCC patients.
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18
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Yang YQ, Tian T, Zhu HY, Liang JH, Wu W, Wu JZ, Xia Y, Wang L, Fan L, Li JY, Xu W. NDRG2 mRNA levels and miR-28-5p and miR-650 activity in chronic lymphocytic leukemia. BMC Cancer 2018; 18:1009. [PMID: 30348117 PMCID: PMC6196416 DOI: 10.1186/s12885-018-4915-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 10/08/2018] [Indexed: 12/18/2022] Open
Abstract
Background NDRG2 is identified as a tumor suppressor gene in many tumors, and functions in cell proliferation, differentiation and apoptosis. Recent data indicate that NDRG2 expression is up-regulated by TP53. Moreover, proposed mechanisms of NDRG2 inactivation include epigenetic silencing of the NDRG2 promoter and down-regulation by microRNAs (miRNAs). However, few studies have ever been done on the role of NDRG2 and the NDRG2-regulating miRNAs interference in chronic lymphocytic leukemia (CLL). Methods NDRG2 and microRNAs mRNA levels in CLL subjects were assessed by quantitative real-time polymerase chain reaction (qRT-PCR). The dual-luciferase reporter assay was performed to determine NDRG2-related miRNAs. Low expression of mature exogenous miRNAs in CLL cells was established by transient transfection. NDRG2 protein levels in CLL cells were detected by western blot. In addition, flow cytometry was conducted to examine the apoptosis of CLL cells. Results Lower expression of NDRG2 was found in the B-cells from 102 CLL patients compared the 40 normal subjects (P < 0.001). Patients with advanced Binet stage (P = 0.001), high lactate dehydrogenase (LDH) level (P = 0.036), un-mutated immunoglobulin heavy chain variable region gene (IGHV) (P = 0.004) and those with p53 aberrations (P < 0.001) had a markedly lower levels of NDRG2 mRNA. This decrease was associated with briefer time-to-treatment (P = 0.001) and poorer survival (P < 0.001). High expression of miR-28-5p and miR-650 was associated with Binet B/C stage (P = 0.044) and IGHV un-mutated (P = 0.011), as well as Binet B/C stage (P = 0.013) and p53 aberrations (P = 0.037), respectively. Inhibition of miR-28-5p or miR-650 could induce more apoptosis in CLL cells with germline TP53. Conclusions NDRG2 mRNA levels might be a useful prognostic variable for patients of CLL and up-regulating NDRG2 transcription may be a therapy approach in CLL without p53 aberrations. Electronic supplementary material The online version of this article (10.1186/s12885-018-4915-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yu-Qiong Yang
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Province Hospital, Nanjing, 210029, Jiangsu, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Tian Tian
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Province Hospital, Nanjing, 210029, Jiangsu, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Hua-Yuan Zhu
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Province Hospital, Nanjing, 210029, Jiangsu, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Jin-Hua Liang
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Province Hospital, Nanjing, 210029, Jiangsu, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Wei Wu
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Province Hospital, Nanjing, 210029, Jiangsu, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Jia-Zhu Wu
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Province Hospital, Nanjing, 210029, Jiangsu, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Yi Xia
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Province Hospital, Nanjing, 210029, Jiangsu, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Li Wang
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Province Hospital, Nanjing, 210029, Jiangsu, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Lei Fan
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Province Hospital, Nanjing, 210029, Jiangsu, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Jian-Yong Li
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Province Hospital, Nanjing, 210029, Jiangsu, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Wei Xu
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Province Hospital, Nanjing, 210029, Jiangsu, China. .,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China. .,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China.
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