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Lyu CC, Meng Y, Che HY, Suo JL, He YT, Zheng Y, Jiang H, Zhang JB, Yuan B. MSI2 Modulates Unsaturated Fatty Acid Metabolism by Binding FASN in Bovine Mammary Epithelial Cells. J Agric Food Chem 2023; 71:20359-20371. [PMID: 38059915 DOI: 10.1021/acs.jafc.3c07280] [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] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
The regulation of fatty acid metabolism is crucial for milk flavor and quality. Therefore, it is important to explore the genes that play a role in fatty acid metabolism and their mechanisms of action. The RNA-binding protein Musashi2 (MSI2) is involved in the regulation of numerous biological processes and plays a regulatory role in post-transcriptional translation. However, its role in the mammary glands of dairy cows has not been reported. The present study examined MSI2 expression in mammary glands from lactating and dry milk cows. Experimental results in bovine mammary epithelial cells (BMECs) showed that MSI2 was negatively correlated with the ability to synthesize milk fat and that MSI2 decreased the content of unsaturated fatty acids (UFAs) in BMECs. Silencing of Msi2 increased triglyceride accumulation in BMECs and increased the proportion of UFAs. MSI2 affects TAG synthesis and milk fat synthesis by regulating fatty acid synthase (FASN). In addition, RNA immunoprecipitation experiments in BMECs demonstrated for the first time that MSI2 can bind to the 3'-UTR of FASN mRNA to exert a regulatory effect. In conclusion, MSI2 affects milk fat synthesis and fatty acid metabolism by regulating the triglyceride synthesis and UFA content through binding FASN.
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Affiliation(s)
- Chen-Chen Lyu
- Department of Laboratory Animals, College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, Jilin, China
| | - Yu Meng
- Department of Laboratory Animals, College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, Jilin, China
| | - Hao-Yu Che
- Department of Laboratory Animals, College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, Jilin, China
| | - Jin-Long Suo
- Institute of Microsurgery on Extremities, and Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Yun-Tong He
- Department of Laboratory Animals, College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, Jilin, China
| | - Yi Zheng
- Department of Laboratory Animals, College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, Jilin, China
| | - Hao Jiang
- Department of Laboratory Animals, College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, Jilin, China
| | - Jia-Bao Zhang
- Department of Laboratory Animals, College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, Jilin, China
| | - Bao Yuan
- Department of Laboratory Animals, College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, Jilin, China
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Singh S, Gaur A, Sharma RK, Kumari R, Prakash S, Kumari S, Chaudhary AD, Prasun P, Pant P, Hunkler H, Thum T, Jagavelu K, Bharati P, Hanif K, Chitkara P, Kumar S, Mitra K, Gupta SK. Musashi-2 causes cardiac hypertrophy and heart failure by inducing mitochondrial dysfunction through destabilizing Cluh and Smyd1 mRNA. Basic Res Cardiol 2023; 118:46. [PMID: 37923788 DOI: 10.1007/s00395-023-01016-y] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 11/06/2023]
Abstract
Regulation of RNA stability and translation by RNA-binding proteins (RBPs) is a crucial process altering gene expression. Musashi family of RBPs comprising Msi1 and Msi2 is known to control RNA stability and translation. However, despite the presence of MSI2 in the heart, its function remains largely unknown. Here, we aim to explore the cardiac functions of MSI2. We confirmed the presence of MSI2 in the adult mouse, rat heart, and neonatal rat cardiomyocytes. Furthermore, Msi2 was significantly enriched in the heart cardiomyocyte fraction. Next, using RNA-seq data and isoform-specific PCR primers, we identified Msi2 isoforms 1, 4, and 5, and two novel putative isoforms labeled as Msi2 6 and 7 to be expressed in the heart. Overexpression of Msi2 isoforms led to cardiac hypertrophy in cultured cardiomyocytes. Additionally, Msi2 exhibited a significant increase in a pressure-overload model of cardiac hypertrophy. We selected isoforms 4 and 7 to validate the hypertrophic effects due to their unique alternative splicing patterns. AAV9-mediated overexpression of Msi2 isoforms 4 and 7 in murine hearts led to cardiac hypertrophy, dilation, heart failure, and eventually early death, confirming a pathological function for Msi2. Using global proteomics, gene ontology, transmission electron microscopy, seahorse, and transmembrane potential measurement assays, increased MSI2 was found to cause mitochondrial dysfunction in the heart. Mechanistically, we identified Cluh and Smyd1 as direct downstream targets of Msi2. Overexpression of Cluh and Smyd1 inhibited Msi2-induced cardiac malfunction and mitochondrial dysfunction. Collectively, we show that Msi2 induces hypertrophy, mitochondrial dysfunction, and heart failure.
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Affiliation(s)
- Sandhya Singh
- Pharmacology Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Lucknow, India, 226031
| | - Aakash Gaur
- Pharmacology Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Lucknow, India, 226031
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Rakesh Kumar Sharma
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
- Division of Sophisticated Analytical Instrument Facility and Research, CSIR-Central Drug Research Institute, Lucknow, India
| | - Renu Kumari
- Pharmacology Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Lucknow, India, 226031
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Shakti Prakash
- Pharmacology Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Lucknow, India, 226031
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Sunaina Kumari
- Pharmacology Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Lucknow, India, 226031
| | - Ayushi Devendrasingh Chaudhary
- Pharmacology Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Lucknow, India, 226031
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Pankaj Prasun
- Pharmacology Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Lucknow, India, 226031
| | - Priyanka Pant
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
- CSIR-Centre for Cellular and Molecular Biology, Hyderabad, India
| | - Hannah Hunkler
- Institute of Molecular and Translational Therapeutic Strategies, Hannover Medical School, Hannover, Germany
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies, Hannover Medical School, Hannover, Germany
- Fraunhofer Institute of Toxicology and Experimental Medicine, Hannover, Germany
| | - Kumaravelu Jagavelu
- Pharmacology Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Lucknow, India, 226031
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Pragya Bharati
- Pharmacology Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Lucknow, India, 226031
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Kashif Hanif
- Pharmacology Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Lucknow, India, 226031
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Pragya Chitkara
- National Institute of Plant Genome Research, New Delhi, India
| | - Shailesh Kumar
- National Institute of Plant Genome Research, New Delhi, India
| | - Kalyan Mitra
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
- Division of Sophisticated Analytical Instrument Facility and Research, CSIR-Central Drug Research Institute, Lucknow, India
| | - Shashi Kumar Gupta
- Pharmacology Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Lucknow, India, 226031.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India.
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Zhang T, Wu S, Xu R, Zhang S, Wang M, Li J. Musashi-2 binds with Fbxo6 to induce Rnaset2 ubiquitination and chemokine signaling pathway during vascular smooth muscle cell phenotypic switch in atherosclerosis. Cell Signal 2023; 111:110869. [PMID: 37633478 DOI: 10.1016/j.cellsig.2023.110869] [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: 06/14/2023] [Revised: 08/11/2023] [Accepted: 08/23/2023] [Indexed: 08/28/2023]
Abstract
OBJECTIVE The objective of this study is to determine how Musashi-2 (MSI2) affects vascular smooth muscle cell (VSMC) phenotypic switch and contributes to atherosclerosis (AS). METHODS Primary mouse VSMCs were transfected with MSI2 specific siRNA and treated with platelet-derived growth factor-BB (PDGF-BB). The proliferation, cell-cycle, and migration of VSMCs were determined by CCK-8, flow cytometry, wound healing, and transwell assays. Western blot and qRT-PCR were conducted to analyze the protein and mRNA expression. Moreover, the correlation between MSI2, Fbxo6, Rnaset2, and chemokine signaling was predicted and verified using RNAct database, KEGG, wiki, RNA-binding protein immunoprecipitation and co-immunoprecipitation. Moreover, H&E and Oil Red O staining were employed for assessing necrotic core and lipid accumulation in AS mouse aorta tissues. The numbers of B lymphocytes and monocytes, and the levels of triglyceride (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDLC), and low-density lipoprotein cholesterol (LDL-C) in AS mice blood were investigated using flow cytometry and corresponding commercial kits, respectively. RESULTS MSI2 was up-regulated in the PDGF-BB-treated VSMCs. Knockdown of MSI2 inhibited VSMC proliferation, cell-cycle, and migration. Moreover, MSI2 regulated VSMC phenotypic switch through binding with Fbxo6 to induce Rnaset2 ubiquitination. MSI2 knockdown inhibited chemokine signaling via regulating Fbxo6/Rnaset2 axis. In AS mice, knockdown of MSI2 inhibited the formation of necrotic core and atherosclerotic plaque, and inhibited chemokine signaling via regulating Fbxo6/Rnaset2 axis. CONCLUSION Our findings demonstrated that MSI2 could bind with Fbxo6 to induce Rnaset2 ubiquitination and the activation of chemokine signaling pathway during VSMC phenotypic switch in AS.
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Affiliation(s)
- Tao Zhang
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan 250014, Shandong, China; Department of General Surgery, The First Hospital Affiliated with Shandong First Medical University, Jinan 250014, Shandong, China
| | - Shusheng Wu
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan 250014, Shandong, China; Department of General Surgery, The First Hospital Affiliated with Shandong First Medical University, Jinan 250014, Shandong, China
| | - Rongwei Xu
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan 250014, Shandong, China; Department of General Surgery, The First Hospital Affiliated with Shandong First Medical University, Jinan 250014, Shandong, China
| | - Shuguang Zhang
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan 250014, Shandong, China; Department of General Surgery, The First Hospital Affiliated with Shandong First Medical University, Jinan 250014, Shandong, China
| | - Minghai Wang
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan 250014, Shandong, China; Department of General Surgery, The First Hospital Affiliated with Shandong First Medical University, Jinan 250014, Shandong, China.
| | - Jie Li
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan 250014, Shandong, China; Department of General Surgery, The First Hospital Affiliated with Shandong First Medical University, Jinan 250014, Shandong, China.
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Jiang P, Zhang T, Wu B, Li X, Fu M, Xu B. Musashi-2 ( MSI2) promotes neuroblastoma tumorigenesis through targeting MYC-mediated glucose-6-phosphate dehydrogenase (G6PD) transcriptional activation. Med Oncol 2023; 40:332. [PMID: 37843625 DOI: 10.1007/s12032-023-02199-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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 09/19/2023] [Indexed: 10/17/2023]
Abstract
Neuroblastoma (NB) is the deadliest pediatric solid tumor due to its rapid proliferation. Aberrant expression of MYCN is deemed as the most remarkable feature for the predictive hallmark of NB progression and recurrence. However, the phenomenon that only detection of MYCN in the nearly 20% of NB patients hints that there should be other vital oncogenes in the progression of NB. Here, we firstly show that MSI2 mRNA is augmented by analyzing public GEO datasets in the malignant stage according to International Neuroblastoma Staging System (INSS) stages. Although accumulating evidences uncover the emerging roles of MSI2 in several cancers, the regulatory functions and underlying mechanisms of MSI2 in NB remain under-investigated. Herein, we identified that high-expressed MSI2 and low-expressed n-Myc group account for 43.1% of total NB clinical samples (n = 65). Meanwhile, MSI2 expression is profoundly upregulated along with NB malignancy and negatively associated with the survival outcome of NB patients in the NB tissue microarray (NB: n = 65; Ganglioneuroblastoma: n = 31; Ganglioneuroma: n = 27). In vitro, our results revealed that MSI2 promoted migration, invasion, and proliferation of NB cells via enhancing pentose phosphate pathway. Mechanistically, MSI2 upregulated the key enzyme glucose-6-phosphate dehydrogenase (G6PD) via directly binding to 3'-untranslated regions of c-Myc mRNA to facilitate its stability, resulting in enhancing pentose phosphate pathway. Our findings reveal that MSI2 promotes pentose phosphate pathway via activating c-Myc-G6PD signaling, suggesting that MSI2 exhibits a novel and powerful target for the diagnosis and treatment of NB.
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Affiliation(s)
- Ping Jiang
- Department of Laboratory Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, China
| | - Ting Zhang
- Department of Laboratory Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, China
| | - Bin Wu
- Department of Laboratory Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, China
| | - Xiaoqing Li
- Department of Laboratory Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, China
| | - Mingpeng Fu
- Department of Laboratory Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, China
| | - Banglao Xu
- Department of Laboratory Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, China.
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Ferrari A, Fiocca R, Bonora E, Domizio C, Fonzi E, Angeli D, Domenico Raulli G, Mattioli S, Martinelli G, Molinari C. Detection of a Novel MSI2-C17orf64 Transcript in a Patient with Aggressive Adenocarcinoma of the Gastroesophageal Junction: A Case Report. Genes (Basel) 2023; 14:genes14040918. [PMID: 37107676 PMCID: PMC10137952 DOI: 10.3390/genes14040918] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/06/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
Adenocarcinoma of the esophagus (EAC) and gastroesophageal junction (GEJ-AC) is associated with poor prognosis, treatment resistance and limited systemic therapeutic options. To deeply understand the genomic landscape of this cancer type, and potentially identify a therapeutic target in a neoadjuvant chemotherapy non-responder 48-year-old man, we adopted a multi-omic approach. We simultaneously evaluated gene rearrangements, mutations, copy number status, microsatellite instability and tumor mutation burden. The patient displayed pathogenic mutations of the TP53 and ATM genes and variants of uncertain significance of three kinases genes (ERBB3, CSNK1A1 and RPS6KB2), along with FGFR2 and KRAS high copy number amplification. Interestingly, transcriptomic analysis revealed the Musashi-2 (MSI2)-C17orf64 fusion that has never been reported before. Rearrangements of the RNA-binding protein MSI2 with a number of partner genes have been described across solid and hematological tumors. MSI2 regulates several biological processes involved in cancer initiation, development and resistance to treatment, and deserves further investigation as a potential therapeutic target. In conclusion, our extensive genomic characterization of a gastroesophageal tumor refractory to all therapeutic approaches led to the discovery of the MSI2-C17orf64 fusion. The results underlie the importance of deep molecular analyses enabling the identification of novel patient-specific markers to be monitored during therapy or even targeted at disease evolution.
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Affiliation(s)
- Anna Ferrari
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", 47014 Meldola, FC, Italy
| | - Roberto Fiocca
- Unit of Anatomic Pathology, Ospedale Policlinico San Martino IRCCS, 16125 Genova, Italy
- Department of Surgical and Diagnostic Sciences (DISC), University of Genova, 16125 Genova, Italy
| | - Elena Bonora
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum, University of Bologna, Via Massarenti 9, 40126 Bologna, Italy
| | - Chiara Domizio
- Department of Life Sciences and Biotechnology, Ferrara University, 44124 Ferrara, Italy
| | - Eugenio Fonzi
- Unit of Biostatistics and Clinical Trials, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", 47014 Meldola, FC, Italy
| | - Davide Angeli
- Unit of Biostatistics and Clinical Trials, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", 47014 Meldola, FC, Italy
| | | | - Sandro Mattioli
- GVM Care & Research Group, Division of Thoracic Surgery-Maria Cecilia Hospital, 48022 Cotignola, RA, Italy
- Alma Mater Studiorum-University of Bologna, 40126 Bologna, Italy
| | - Giovanni Martinelli
- Scientific Directorate, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", 47014 Meldola, FC, Italy
| | - Chiara Molinari
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", 47014 Meldola, FC, Italy
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Zhou H, Huang J, Wang F. Increased transcription of hsa_circ_0000644 upon RUNX family transcription factor 3 downregulation participates in the malignant development of bladder cancer. Cell Signal 2023; 104:110590. [PMID: 36627006 DOI: 10.1016/j.cellsig.2023.110590] [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: 10/26/2022] [Revised: 12/28/2022] [Accepted: 01/05/2023] [Indexed: 01/09/2023]
Abstract
BACKGROUND Studies are ongoing to examine the versatile functions of circular RNAs (circRNAs) in human diseases. This research investigates the effects of hsa_circ_0000644 (circ_644) and its related molecules on the malignant behavior of bladder cancer (BCa) cells. METHODS Abundant bioinformatics analyses were performed to screen the key circRNA and its related molecules in BCa. Tumor tissues and the para-tumorous tissues were collected from 58 patients with BCa. Expression of RUNX family transcription factor 3 (RUNX3), circ_644, microRNA-143-3p (miR-143-3p), and musashi RNA binding protein 2 (MSI2) in BCa tissues or cells was determined. Molecular interactions were confirmed by chromatin immunoprecipitation, RNA pull-down, and luciferase assays. Gain and loss-of function assays were performed using two BCa cell lines (T24 and HT1376). RESULTS Circ_644 was highly expressed whereas RUNX3, which could suppress circ_644 transcription, was lowly expressed in BCa tissues and cells. Upregulation of RUNX3 suppressed proliferation, colony formation, migration and invasion, and tumorigenicity of BCa cells and induced cell cycle arrest. However, the tumor-suppressive effects of RUNX3 were blocked by circ_644 upregulation. Circ_644 served as a sponge for miR-143-3p, and miR-143-3p bound to MSI2 mRNA. The rescue experiments showed that miR-143-3p inhibition or MSI2 overexpression restored the malignant behaviors of BCa cells induced by circ_644 knockdown or RUNX3 overexpression. CONCLUSION This study demonstrates that transcriptional activation of circ_644 upon RUNX3 downregulation drives the malignant development of BCa through the miR-143-3p/MSI2 axis. RUNX3 restoration or specific inhibition of circ_644 or MSI2 may help block BCa progression.
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Affiliation(s)
- Hao Zhou
- Department of Urology, The Second Affiliated Hospital of Hunan University of Chinese Medicine, Changsha 410001, Hunan, PR China
| | - Jiangbo Huang
- Department of Urology, The Second Affiliated Hospital of Hunan University of Chinese Medicine, Changsha 410001, Hunan, PR China
| | - Fang Wang
- Department of Medicine, Changsha Social Work College, Changsha 410004, Hunan, PR China.
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Jiang L, Xue S, Xu J, Fu X, Wei J, Zhang C. Prognostic value of Musashi 2 ( MSI2) in cancer patients: A systematic review and meta-analysis. Front Oncol 2022; 12:969632. [PMID: 36530989 PMCID: PMC9751961 DOI: 10.3389/fonc.2022.969632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 06/21/2022] [Accepted: 11/02/2022] [Indexed: 11/10/2023] Open
Abstract
Musashi 2 (MSI2) is an RNA-binding protein that regulates mRNA translation of numerous intracellular targets and plays an important role in the development of cancer. However, the prognostic value of MSI2 in various cancers remains controversial. Herein, we conducted this meta-analysis including 21 studies with 2640 patients searched from PubMed, Web of Science, EMBASE, Chinese National Knowledge Infrastructure databases, and WanFang databases to accurately assess the prognostic significance of MSI2 in various cancers. Our results indicated that high MSI2 expression was significantly related to poor overall survival (HR = 1.84, 95% CI: 1.66-2.05, P < 0.001) and disease-free survival (HR = 1.73, 95% CI: 1.35-2.22, P < 0.001). In addition, MSI2 positive expression was associated with certain phenotypes of tumor aggressiveness, such as clinical stage, depth of invasion, lymph node metastasis, liver metastasis and tumor size. In conclusion, elevated MSI2 expression is closely correlated with poor prognosis in various cancers, and may serve as a potential molecular target for cancer patients.
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Affiliation(s)
- Lin Jiang
- Department of Anesthesiology, Taizhou People’s Hospital, Affiliated to Nanjing Medical University, Taizhou, Jiangsu, China
| | - Shanshan Xue
- Department of Clinical Laboratory, Taizhou People’s Hospital, Affiliated to Nanjing Medical University, Taizhou, Jiangsu, China
| | - Jie Xu
- The Center for Translational Medicine, Taizhou People’s Hospital, Affiliated to Nanjing Medical University, Taizhou, Jiangsu, China
| | - Xiaoyang Fu
- The Center for Translational Medicine, Taizhou People’s Hospital, Affiliated to Nanjing Medical University, Taizhou, Jiangsu, China
| | - Jing Wei
- Department of Obstetrics and Gynecology, Taizhou People’s Hospital, Affiliated to Nanjing Medical University, Taizhou, Jiangsu, China
| | - Chuanmeng Zhang
- The Center for Translational Medicine, Taizhou People’s Hospital, Affiliated to Nanjing Medical University, Taizhou, Jiangsu, China
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Zhang D, Yao X, Teng Y, Zhao T, Lin L, Li Y, Shang H, Jin Y, Jin Q. Adipocytes-derived exosomal microRNA-1224 inhibits M2 macrophage polarization in obesity-induced adipose tissue inflammation via MSI2-mediated Wnt/β-catenin axis. Mol Nutr Food Res 2022; 66:e2100889. [PMID: 35616318 DOI: 10.1002/mnfr.202100889] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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: 09/27/2021] [Revised: 04/27/2022] [Indexed: 11/06/2022]
Abstract
SCOPE Phenotypic switch of macrophage polarization in adipose tissue has been associated with obesity-induced adipose tissue inflammation (OATI). Therefore, we aimed to explore the possible mechanism of adipocytes-derived exosomes (ADEs) carrying microRNA-1224 (miR-1224) in M2 macrophage polarization of OATI. METHODS AND RESULTS We developed miR-1224-knockout (miR-1224-KO) mice for this study, and isolated primary adipocytes from high-fat diet (HFD) or normal diet (SD)-fed mice. ADEs were extracted and cocultured with bone marrow-derived macrophages (BMDMs). The macrophagic crown-like structures (CLS) and M1 and M2 phenotype macrophages in epididymal white adipose tissue (epiWAT) were observed by immunohistochemistry and flow cytometry. The obtained data indicated that miR-1224 was highly expressed in adipose tissues and adipocytes of obese mice. miR-1224 knockout decreased CLS number and increased M2 macrophages polarization in epiWAT. In addition, miR-1224 could be transferred to BMDMs via ADEs, which targeted musashi RNA binding protein 2 (MSI2) expression and inactivated Wnt/β-catenin pathway, inhibiting macrophage M2 polarization and promoting inflammatory factor release. CONCLUSION Exosomal miR-1224 derived by adipocytes targets MSI2 and blocks the Wnt/β-catenin pathway, which inhibits macrophage M2 polarization and promotes inflammatory factor release, ultimately promoting OATI. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Dongdong Zhang
- Department of Endocrinology and Metabolism, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, China
| | - Xiaoyan Yao
- Department of Endocrinology and Metabolism, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, China
| | - Yaqin Teng
- Department of Endocrinology and Metabolism, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, China
| | - Tiantian Zhao
- Department of Endocrinology and Metabolism, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, China
| | - Liangyan Lin
- Department of Endocrinology and Metabolism, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, China
| | - Yuanyuan Li
- Department of Endocrinology and Metabolism, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, China
| | - Hongxia Shang
- Department of Endocrinology and Metabolism, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, China
| | - Yongjun Jin
- Department of Endocrinology and Metabolism, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, China
| | - Qingsong Jin
- Department of Endocrinology and Metabolism, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, China
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Sabater-Arcis M, Bargiela A, Moreno N, Poyatos-Garcia J, Vilchez JJ, Artero R. Musashi-2 contributes to myotonic dystrophy muscle dysfunction by promoting excessive autophagy through miR-7 biogenesis repression. Mol Ther Nucleic Acids 2021; 25:652-667. [PMID: 34589284 PMCID: PMC8463325 DOI: 10.1016/j.omtn.2021.08.010] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 08/10/2021] [Indexed: 02/07/2023]
Abstract
Skeletal muscle symptoms strongly contribute to mortality of myotonic dystrophy type 1 (DM1) patients. DM1 is a neuromuscular genetic disease caused by CTG repeat expansions that, upon transcription, sequester the Muscleblind-like family of proteins and dysregulate alternative splicing of hundreds of genes. However, mis-splicing does not satisfactorily explain muscle atrophy and wasting, and several other contributing factors have been suggested, including hyperactivated autophagy leading to excessive catabolism. MicroRNA (miR)-7 has been demonstrated to be necessary and sufficient to repress the autophagy pathway in cell models of the disease, but the origin of its low levels in DM1 was unknown. We have found that the RNA-binding protein Musashi-2 (MSI2) is upregulated in patient-derived myoblasts and biopsy samples. Because it has been previously reported that MSI2 controls miR-7 biogenesis, we tested the hypothesis that excessive MSI2 was repressing miR-7 maturation. Using gene-silencing strategies (small interfering RNAs [siRNAs] and gapmers) and the small molecule MSI2-inhibitor Ro 08-2750, we demonstrate that reducing MSI2 levels or activity boosts miR-7 expression, represses excessive autophagy, and downregulates atrophy-related genes of the UPS system. We also detect a significant upregulation of MBNL1 upon MSI2 silencing. Taken together, we propose MSI2 as a new therapeutic target to treat muscle dysfunction in DM1.
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Affiliation(s)
- Maria Sabater-Arcis
- Translational Genomics Group, University Institute for Biotechnology and Biomedicine (BIOTECMED), University of Valencia, 46100 Burjasot, Valencia, Spain
- INCLIVA Biomedical Research Institute, 46100 Burjasot, Valencia, Spain
| | - Ariadna Bargiela
- Translational Genomics Group, University Institute for Biotechnology and Biomedicine (BIOTECMED), University of Valencia, 46100 Burjasot, Valencia, Spain
- INCLIVA Biomedical Research Institute, 46100 Burjasot, Valencia, Spain
- Corresponding author: Ariadna Bargiela, University Institute for Biotechnology and Biomedicine (BIOTECMED), University of Valencia, Dr. Moliner, 50, 46100 Burjasot, Valencia, Spain.
| | - Nerea Moreno
- Translational Genomics Group, University Institute for Biotechnology and Biomedicine (BIOTECMED), University of Valencia, 46100 Burjasot, Valencia, Spain
- INCLIVA Biomedical Research Institute, 46100 Burjasot, Valencia, Spain
| | - Javier Poyatos-Garcia
- Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Valencia, Spain
- Neuromuscular Research Unit, Neurology Department, Instituto de Investigación Sanitaria la Fe, Hospital Universitari i Politécnic La Fe, 46026 Valencia, Spain
| | - Juan J. Vilchez
- Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Valencia, Spain
- Neuromuscular Research Unit, Neurology Department, Instituto de Investigación Sanitaria la Fe, Hospital Universitari i Politécnic La Fe, 46026 Valencia, Spain
| | - Ruben Artero
- Translational Genomics Group, University Institute for Biotechnology and Biomedicine (BIOTECMED), University of Valencia, 46100 Burjasot, Valencia, Spain
- INCLIVA Biomedical Research Institute, 46100 Burjasot, Valencia, Spain
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10
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Zhao H, Bi M, Lou M, Yang X, Sun L. Downregulation of SOX2-OT Prevents Hepatocellular Carcinoma Progression Through miR-143-3p/ MSI2. Front Oncol 2021; 11:685912. [PMID: 34322386 PMCID: PMC8311736 DOI: 10.3389/fonc.2021.685912] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 03/26/2021] [Accepted: 06/22/2021] [Indexed: 11/25/2022] Open
Abstract
Objective LncRNA SOX2-OT is involved in a variety of cancers. This study explored the effect of lncRNA SOX2-OT on hepatocellular carcinoma (HCC) cells. Methods SOX2-OT expressions were detected in HCC tissues and normal tissues, normal cells, and HCC cells. The relationship between SOX2-OT and prognosis was analyzed by TCGA. After SOX2-OT expression was inhibited using siRNA, HCC cell malignant behaviors were evaluated. The subcellular localization of SOX2-OT in HCC cells was predicted and analyzed. The binding relationships among SOX2-OT, miR-143-3p, and MSI2 were analyzed by bioinformatics website, dual-luciferase assay, and RNA pull-down assay. The effect of miR-143-3p and MSI2 on the regulation of SOX2-OT on biological behaviors of HCC cells was confirmed by functional rescue experiments. The effect of SOX2-OT on the tumorigenicity of HCC was evaluated by subcutaneous tumorigenesis in nude mice. Results SOX2-OT was highly expressed in HCC cells and tissues. The prognosis was poor in HCC patients with high SOX2-OT expression. Downregulating SOX2-OT inhibited HCC cell malignant behaviors. SOX2-OT bound to miR-143-3p to promote MSI2 expression. Downregulating miR-143-3p or upregulating MSI2 averted the role of si-SOX2-OT in HCC cells. Nude mouse subcutaneous tumorigenesis showed that SOX2-OT downregulation decreased the tumorigenicity of HCC, and affected the levels of miR-143-3p and MSI2 mRNA in tumor tissues. Conclusion SOX2-OT inhibited the targeted inhibition of miR-143-3p on MSI2 through competitively binding to miR-143-3p, thus promoting MSI2 expression and proliferation, invasion, and migration of HCC cells.
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Affiliation(s)
- Hongfeng Zhao
- Department of Oncology, Xinxiang Central Hospital, The Fourth Clinical of Xinxiang Medical University, Xinxiang, China
| | - Minping Bi
- Department of Oncology, Xinxiang Central Hospital, The Fourth Clinical of Xinxiang Medical University, Xinxiang, China
| | - Meng Lou
- Department of Oncology, Xinxiang Central Hospital, The Fourth Clinical of Xinxiang Medical University, Xinxiang, China
| | - Xiaowei Yang
- Department of Oncology, Xinxiang Central Hospital, The Fourth Clinical of Xinxiang Medical University, Xinxiang, China
| | - Liwen Sun
- Department of Oncology, Xinxiang Central Hospital, The Fourth Clinical of Xinxiang Medical University, Xinxiang, China
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11
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Dong W, Liu X, Yang C, Wang D, Xue Y, Ruan X, Zhang M, Song J, Cai H, Zheng J, Liu Y. Glioma glycolipid metabolism: MSI2-SNORD12B-FIP1L1-ZBTB4 feedback loop as a potential treatment target. Clin Transl Med 2021; 11:e411. [PMID: 34047477 PMCID: PMC8114150 DOI: 10.1002/ctm2.411] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [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: 01/21/2021] [Revised: 04/13/2021] [Accepted: 04/19/2021] [Indexed: 12/26/2022] Open
Abstract
Abnormal energy metabolism, including enhanced aerobic glycolysis and lipid synthesis, is a well‐established feature of glioblastoma (GBM) cells. Thus, targeting the cellular glycolipid metabolism can be a feasible therapeutic strategy for GBM. This study aimed to evaluate the roles of MSI2, SNORD12B, and ZBTB4 in regulating the glycolipid metabolism and proliferation of GBM cells. MSI2 and SNORD12B expression was significantly upregulated and ZBTB4 expression was significantly low in GBM tissues and cells. Knockdown of MSI2 or SNORD12B or overexpression of ZBTB4 inhibited GBM cell glycolipid metabolism and proliferation. MSI2 may improve SNORD12B expression by increasing its stability. Importantly, SNORD12B increased utilization of the ZBTB4 mRNA transcript distal polyadenylation signal in alternative polyadenylation processing by competitively combining with FIP1L1, which decreased ZBTB4 expression because of the increased proportion of the 3′ untranslated region long transcript. ZBTB4 transcriptionally suppressed the expression of HK2 and ACLY by binding directly to the promoter regions. Additionally, ZBTB4 bound the MSI promoter region to transcriptionally suppress MSI2 expression, thereby forming an MSI2/SNORD12B/FIP1L1/ZBTB4 feedback loop to regulate the glycolipid metabolism and proliferation of GBM cells. In conclusion, MSI2 increased the stability of SNORD12B, which regulated ZBTB4 alternative polyadenylation processing by competitively binding to FIP1L1. Thus, the MSI2/SNORD12B/FIP1L1/ZBTB4 positive feedback loop plays a crucial role in regulating the glycolipid metabolism of GBM cells and provides a potential drug target for glioma treatment.
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Affiliation(s)
- Weiwei Dong
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China.,Liaoning Province Medical Surgery and Rehabilitation Robot Technology Engineering Research Center, Shenyang, China
| | - Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China.,Liaoning Province Medical Surgery and Rehabilitation Robot Technology Engineering Research Center, Shenyang, China
| | - Chunqing Yang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China.,Liaoning Province Medical Surgery and Rehabilitation Robot Technology Engineering Research Center, Shenyang, China
| | - Di Wang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China.,Liaoning Province Medical Surgery and Rehabilitation Robot Technology Engineering Research Center, Shenyang, China
| | - Yixue Xue
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Xuelei Ruan
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Mengyang Zhang
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Jian Song
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China.,Liaoning Province Medical Surgery and Rehabilitation Robot Technology Engineering Research Center, Shenyang, China
| | - Heng Cai
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China.,Liaoning Province Medical Surgery and Rehabilitation Robot Technology Engineering Research Center, Shenyang, China
| | - Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China.,Liaoning Province Medical Surgery and Rehabilitation Robot Technology Engineering Research Center, Shenyang, China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China.,Liaoning Province Medical Surgery and Rehabilitation Robot Technology Engineering Research Center, Shenyang, China
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12
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Allensworth-James M, Banik J, Odle A, Hardy L, Lagasse A, Moreira ARS, Bird J, Thomas CL, Avaritt N, Kharas MG, Lengner CJ, Byrum SD, MacNicol MC, Childs GV, MacNicol AM. Control of the Anterior Pituitary Cell Lineage Regulator POU1F1 by the Stem Cell Determinant Musashi. Endocrinology 2021; 162:6054984. [PMID: 33373440 PMCID: PMC7814296 DOI: 10.1210/endocr/bqaa245] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Indexed: 12/14/2022]
Abstract
The adipokine leptin regulates energy homeostasis through ubiquitously expressed leptin receptors. Leptin has a number of major signaling targets in the brain, including cells of the anterior pituitary (AP). We have previously reported that mice lacking leptin receptors in AP somatotropes display growth hormone (GH) deficiency, metabolic dysfunction, and adult-onset obesity. Among other targets, leptin signaling promotes increased levels of the pituitary transcription factor POU1F1, which in turn regulates the specification of somatotrope, lactotrope, and thyrotrope cell lineages within the AP. Leptin's mechanism of action on somatotropes is sex dependent, with females demonstrating posttranscriptional control of Pou1f1 messenger RNA (mRNA) translation. Here, we report that the stem cell marker and mRNA translational control protein, Musashi1, exerts repression of the Pou1f1 mRNA. In female somatotropes, Msi1 mRNA and protein levels are increased in the mouse model that lacks leptin signaling (Gh-CRE Lepr-null), coincident with lack of POU1f1 protein, despite normal levels of Pou1f1 mRNA. Single-cell RNA sequencing of pituitary cells from control female animals indicates that both Msi1 and Pou1f1 mRNAs are expressed in Gh-expressing somatotropes, and immunocytochemistry confirms that Musashi1 protein is present in the somatotrope cell population. We demonstrate that Musashi interacts directly with the Pou1f1 mRNA 3' untranslated region and exerts translational repression of a Pou1f1 mRNA translation reporter in a leptin-sensitive manner. Musashi immunoprecipitation from whole pituitary reveals coassociated Pou1f1 mRNA. These findings suggest a mechanism in which leptin stimulation is required to reverse Musashi-mediated Pou1f1 mRNA translational control to coordinate AP somatotrope function with metabolic status.
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Affiliation(s)
- Melody Allensworth-James
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Jewel Banik
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Angela Odle
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Linda Hardy
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Alex Lagasse
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Ana Rita Silva Moreira
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Jordan Bird
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | | | - Nathan Avaritt
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | | | | | - Stephanie D Byrum
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Arkansas Children’s Research Institute, Little Rock, Arkansas, USA
| | - Melanie C MacNicol
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Gwen V Childs
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Angus M MacNicol
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Correspondence: Angus M. MacNicol, PhD, Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, 4301 W Markham St, Little Rock, AR 72205, USA.
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13
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Wang R, Liu L, Jiao J, Gao D. Knockdown of MIR4435-2HG Suppresses the Proliferation, Migration and Invasion of Cervical Cancer Cells via Regulating the miR-128-3p/ MSI2 Axis in vitro. Cancer Manag Res 2020; 12:8745-8756. [PMID: 33061572 PMCID: PMC7519841 DOI: 10.2147/cmar.s265545] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 06/01/2020] [Accepted: 08/02/2020] [Indexed: 12/12/2022] Open
Abstract
Purpose Long non-coding RNAs (lncRNAs) play major roles in the development of several cancers, including cervical cancer (CC). The purpose of the present study is to explore the regulatory mechanism of MIR4435-2HG on CC in vitro. Patients and Methods Fifty-nine pairs of CC tissues and adjacent normal tissues were collected from 59 patients by resection. The expression of lncRNA MIR4435-2HG, microRNA (miR)-128-3p and Musashi 2 (MSI2) in CC tissues and cells was detected by quantitative reverse-transcription PCR (qRT-PCR). The viability of CC cells was detected by 3-(4, 5-Dimethyl-2-Thiazolyl)-2, 5-Diphenyl-2-H-Tetrazolium Bromide (MTT) assay. The ability of migration and invasion in CC cells was measured by wound healing assay and transwell invasion assay, respectively. Starbase software and Targetscan software were utilized to predict the relationship between miR-128 and MIR4435-2HG/MSI2, respectively. The dual-luciferase reporter assay was used to confirm these interactions. Results LncRNA MIR4435-2HG expression was significantly up-regulated in CC tissues (P < 0.001) and cells (P < 0.01). Knockdown of MIR4435-2HG inhibited the proliferation, migration and invasion of CC cells (P < 0.01). MiR-128-3p was a target of MIR4435-2HG and was negatively modulated by MIR4435-2HG (P < 0.0001, r = -0.6331). Up-regulation of miR-128-3p suppressed the proliferation, migration and invasion of CC cells (P < 0.01). In addition, MSI2 was the target gene of miR-128-3p and negatively regulated by miR-128-3p (P < 0.0001, r = -0.4775). Both down-regulation of miR-128-3p and up-regulation of MSI2 reversed the inhibitory effects of MIR4435-2HG knockdown on the proliferation, migration and invasion of CC cells (P < 0.05). Conclusion MIR4435-2HG knockdown suppresses the proliferation, migration and invasion of CC cells through regulating the miR-128-3p/MSI2 axis, providing a possible therapeutic strategy for CC.
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Affiliation(s)
- Ruijing Wang
- Department of Gynecology, The Affiliated Hospital of Qingdao University, Qingdao City, Shandong Province 266555, People's Republic of China
| | - Lun Liu
- Department of Surgery, The Affiliated Hospital of Qingdao University, Qingdao City, Shandong Province 266555, People's Republic of China
| | - Jinwen Jiao
- Department of Gynecology, The Affiliated Hospital of Qingdao University, Qingdao City, Shandong Province 266555, People's Republic of China
| | - Dongmei Gao
- Department of Gynecology, The Affiliated Hospital of Qingdao University, Qingdao City, Shandong Province 266555, People's Republic of China
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14
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Zhou L, Sheng W, Jia C, Shi X, Cao R, Wang G, Lin Y, Zhu F, Dong Q, Dong M. Musashi2 promotes the progression of pancreatic cancer through a novel ISYNA1-p21/ZEB-1 pathway. J Cell Mol Med 2020; 24:10560-10572. [PMID: 32779876 PMCID: PMC7521282 DOI: 10.1111/jcmm.15676] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 02/07/2020] [Revised: 06/03/2020] [Accepted: 06/16/2020] [Indexed: 12/13/2022] Open
Abstract
Our previous studies found overexpression of Musashi2 (MSI2) conduced to the progression and chemoresistance of pancreatic cancer (PC) by negative regulation of Numb and wild type p53 (wtp53). Now, we further investigated the novel signalling involved with MSI2 in PC. We identified inositol‐3‐phosphate synthase 1 (ISYNA1) as a novel tumour suppressor regulated by MSI2. High MSI2 and low ISYNA1 expression were prevalently observed in 91 PC tissues. ISYNA1 expression was negatively correlated with MSI2 expression, T stage, vascular permeation and poor prognosis in PC patients. What's more, patients expressed high MSI2 and low ISYNA1 level had a significant worse prognosis. And in wtp53 Capan‐2 and SW1990 cells, ISYNA1 was downregulated by p53 silencing. ISYNA1 silencing promoted cell proliferation and cell cycle by inhibiting p21 and enhanced cell migration and invasion by upregulating ZEB‐1. However, MSI2 silencing upregulated ISYNA1 and p21 but downregulated ZEB‐1, which can be rescued by ISYNA1 silencing. Moreover, reduction of cell migration and invasion resulting from MSI2 silencing was significantly reversed by ISYNA1 silencing. In summary, MSI2 facilitates the development of PC through a novel ISYNA1‐p21/ZEB‐1 pathway, which provides new gene target therapy for PC.
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Affiliation(s)
- Lei Zhou
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - WeiWei Sheng
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - Chao Jia
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - Xiaoyang Shi
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - Rongxian Cao
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - Guosen Wang
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - Yiheng Lin
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
| | - Fang Zhu
- Division of Cardiology, The People's Hospital of Liaoning Province, Shenyang, China
| | - Qi Dong
- Department of General Surgery, The People's Hospital of Liaoning Province, Shenyang, China
| | - Ming Dong
- Department of Gastrointestinal and Hernia and Abdominal Wall Surgery, First Hospital of China Medical University, Shenyang, China
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15
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Li M, Li AQ, Zhou SL, Lv H, Wei P, Yang WT. RNA-binding protein MSI2 isoforms expression and regulation in progression of triple-negative breast cancer. J Exp Clin Cancer Res 2020; 39:92. [PMID: 32448269 PMCID: PMC7245804 DOI: 10.1186/s13046-020-01587-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 04/30/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND The RNA-binding protein Musashi-2 (MSI2) has been implicated in the tumorigenesis and tumor progression of some human cancers. MSI2 has also been reported to suppress tumor epithelial-to-mesenchymal transition (EMT) progression in breast cancer, and low MSI2 expression is associated with poor outcomes for breast cancer patients; however, the underlying mechanisms have not been fully investigated. This study investigated the expression and phenotypic functions of two major alternatively spliced MSI2 isoforms (MSI2a and MSI2b) and the potential molecular mechanisms involved in triple-negative breast cancer (TNBC) progression. METHODS The Illumina sequencing platform was used to analyze the mRNA transcriptomes of TNBC and normal tissues, while quantitative reverse transcription-polymerase chain reaction and immunohistochemistry validated MSI2 isoform expression in breast cancer tissues. The effects of MSI2a and MSI2b on TNBC cells were assayed in vitro and in vivo. RNA immunoprecipitation (RIP) and RNA sequencing were performed to identify the potential mRNA targets of MSI2a, and RIP and luciferase analyses were used to confirm the mRNA targets of MSI2. RESULTS MSI2 expression in TNBC tissues was significantly downregulated compared to that in normal tissues. In TNBC, MSI2a expression was associated with poor overall survival of patients. MSI2a overexpression in vitro and in vivo inhibited TNBC cell invasion as well as extracellular signal-regulated kinase 1/2 (ERK1/2) activity. However, MSI2b overexpression had no significant effects on TNBC cell migration. Mechanistically, MSI2a expression promoted TP53INP1 mRNA stability by its interaction with the 3'-untranslated region of TP53INP1 mRNA. Furthermore, TP53INP1 knockdown reversed MSI2a-induced suppression of TNBC cell invasion, whereas ectopic expression of TP53INP1 and inhibition of ERK1/2 activity blocked MSI2 knockdown-induced TNBC cell invasion. CONCLUSIONS The current study demonstrated that MSI2a is the predominant functional isoform of MSI2 proteins in TNBC, that its downregulation is associated with TNBC progression and poor prognosis and that MSI2a expression inhibited TNBC invasion by stabilizing TP53INP1 mRNA and inhibiting ERK1/2 activity. Overall, our study provides new insights into the isoform-specific roles of MSI2a and MSI2b in the tumor progression of TNBC, allowing for novel therapeutic strategies to be developed for TNBC.
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Affiliation(s)
- Ming Li
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - An-Qi Li
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Shu-Ling Zhou
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Hong Lv
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Ping Wei
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China. .,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China. .,Institute of Pathology, Fudan University, Shanghai, China. .,Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China.
| | - Wen-Tao Yang
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China. .,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China. .,Institute of Pathology, Fudan University, Shanghai, China.
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16
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Schuschel K, Helwig M, Hüttelmaier S, Heckl D, Klusmann JH, Hoell JI. RNA-Binding Proteins in Acute Leukemias. Int J Mol Sci 2020; 21:E3409. [PMID: 32408494 DOI: 10.3390/ijms21103409] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [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: 04/21/2020] [Revised: 05/07/2020] [Accepted: 05/10/2020] [Indexed: 12/12/2022] Open
Abstract
Acute leukemias are genetic diseases caused by translocations or mutations, which dysregulate hematopoiesis towards malignant transformation. However, the molecular mode of action is highly versatile and ranges from direct transcriptional to post-transcriptional control, which includes RNA-binding proteins (RBPs) as crucial regulators of cell fate. RBPs coordinate RNA dynamics, including subcellular localization, translational efficiency and metabolism, by binding to their target messenger RNAs (mRNAs), thereby controlling the expression of the encoded proteins. In view of the growing interest in these regulators, this review summarizes recent research regarding the most influential RBPs relevant in acute leukemias in particular. The reported RBPs, either dysregulated or as components of fusion proteins, are described with respect to their functional domains, the pathways they affect, and clinical aspects associated with their dysregulation or altered functions.
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17
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Troiano G, Caponio VCA, Botti G, Aquino G, Losito NS, Pedicillo MC, Zhurakivska K, Arena C, Ciavarella D, Mastrangelo F, Lo Russo L, Lo Muzio L, Pannone G. Immunohistochemical Analysis Revealed a Correlation between Musashi-2 and Cyclin-D1 Expression in Patients with Oral Squamous Cells Carcinoma. Int J Mol Sci 2019; 21:E121. [PMID: 31878037 DOI: 10.3390/ijms21010121] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 11/18/2019] [Revised: 12/19/2019] [Accepted: 12/20/2019] [Indexed: 12/12/2022] Open
Abstract
Aim: Musashi 2 (MSI2), which is an RNA-binding protein, plays a fundamental role in the oncogenesis of several cancers. The aim of this study is to investigate the expression of MSI2 in Oral Squamous Cell Carcinoma (OSCC) and evaluate its correlation to clinic-pathological variables and prognosis. Materials and Methods: A bioinformatic analysis was performed on data downloaded from The Cancer Genome Atlas (TCGA) database. The MSI2 expression data were analysed for their correlation with clinic-pathological and prognostic features. In addition, an immmunohistochemical evaluation of MSI2 expression on 108 OSCC samples included in a tissue microarray and 13 healthy mucosae samples was performed. Results: 241 patients’ data from TCGA were included in the final analysis. No DNA mutations were detected for the MSI2 gene, but a hyper methylated condition of the gene emerged. MSI2 mRNA expression correlated with Grading (p = 0.009) and overall survival (p = 0.045), but not with disease free survival (p = 0.549). Males presented a higher MSI2 mRNA expression than females. The immunohistochemical evaluation revealed a weak expression of MSI2 in both OSCC samples and in healthy oral mucosae. In addition, MSI2 expression directly correlated with Cyclin-D1 expression (p = 0.022). However, no correlation has been detected with prognostic outcomes (overall and disease free survival). Conclusions: The role of MSI2 expression in OSCC seems to be not so closely correlated with prognosis, as in other human neoplasms. The correlation with Cyclin-D1 expression suggests an indirect role that MSI2 might have in the proliferation of OSCC cells, but further studies are needed to confirm such results.
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Yang K, Guo W, Ren T, Huang Y, Han Y, Zhang H, Zhang J. Knockdown of HMGA2 regulates the level of autophagy via interactions between MSI2 and Beclin1 to inhibit NF1-associated malignant peripheral nerve sheath tumour growth. J Exp Clin Cancer Res 2019; 38:185. [PMID: 31053152 PMCID: PMC6500071 DOI: 10.1186/s13046-019-1183-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 04/17/2019] [Indexed: 01/01/2023]
Abstract
Background Malignant peripheral nerve sheath tumours (MPNSTs) are sarcomas of Schwann cell lineage origin that occur sporadically or in association with the inherited syndrome, neurofibromatosis type 1 (NF1). This study aimed to examine the function of High mobility group protein A2 (HMGA2) in NF1 MPNST progression and the underlying molecular mechanism. Methods Immunohistochemistry (IHC) was used to detect HMGA2 expression in MPNST and neurofibroma patient samples. Cell Cycle Kit-8 (CCK-8) and 5-ethynyl-20-deoxyuridine (EdU) assays, terminal deoxynucleotidyl transferase-mediated nick end labelling, and transmission electron microscopy were performed to reveal HMGA2 functions in NF1 MPNST cells in vitro and in vivo. Chromatin immunoprecipitation sequencing (ChIP-Seq) and RNA sequencing (RNA-Seq) were used to detect HMGA2-modulated genes regulating autophagy and growth in NF1 MPNSTs in vitro and in vivo. Results NF1 MPNST samples exhibit higher HMGA2 positivity rates (13/16) than sporadic MPNST (16/41) and neurofibroma (0/7) patient samples. High HMGA2 expression is correlated with poor prognosis. Neurofibromin 1 (NF1)-deficient MPNST cells display elevated HMGA2 expression. Functional experiments revealed that HMGA2 knockdown inhibits NF1 MPNST cell growth in vitro and in vivo. In addition to promoting cell cycle arrest and apoptosis, HMGA2 knockdown inhibits autophagy, favouring cell death. RNA-Seq and ChIP-Seq revealed that HMGA2 directly activates the Musashi-2 (MSI2) promoter region, and MSI2 overexpression reverses autophagy and growth in shHMGA2-transfected cells. MSI2 interacts with Beclin1, and Beclin1 blockade inhibits autophagy, thereby inhibiting cell proliferation. Conclusions HMGA2 knockdown regulates autophagy via MSI2-Beclin1 interactions to inhibit NF1 MPNST growth, revealing potential therapeutic targets for these untreatable tumours. Electronic supplementary material The online version of this article (10.1186/s13046-019-1183-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kang Yang
- Musculoskeletal Tumor Center, Peking University People's Hospital, No.11 Xizhimen South Street, Beijing, 100044, People's Republic of China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, People's Republic of China
| | - Wei Guo
- Musculoskeletal Tumor Center, Peking University People's Hospital, No.11 Xizhimen South Street, Beijing, 100044, People's Republic of China. .,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, People's Republic of China.
| | - Tingting Ren
- Musculoskeletal Tumor Center, Peking University People's Hospital, No.11 Xizhimen South Street, Beijing, 100044, People's Republic of China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, People's Republic of China
| | - Yi Huang
- Musculoskeletal Tumor Center, Peking University People's Hospital, No.11 Xizhimen South Street, Beijing, 100044, People's Republic of China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, People's Republic of China
| | - Yu Han
- Musculoskeletal Tumor Center, Peking University People's Hospital, No.11 Xizhimen South Street, Beijing, 100044, People's Republic of China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, People's Republic of China
| | - Hongliang Zhang
- Musculoskeletal Tumor Center, Peking University People's Hospital, No.11 Xizhimen South Street, Beijing, 100044, People's Republic of China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, People's Republic of China
| | - Jie Zhang
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
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Zhan Y, Chen Z, Li Y, He A, He S, Gong Y, Li X, Zhou L. Long non-coding RNA DANCR promotes malignant phenotypes of bladder cancer cells by modulating the miR-149/ MSI2 axis as a ceRNA. J Exp Clin Cancer Res 2018; 37:273. [PMID: 30419948 PMCID: PMC6233575 DOI: 10.1186/s13046-018-0921-1] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 09/28/2018] [Indexed: 01/27/2023]
Abstract
Background Accumulating evidences have indicated that long non-coding RNAs (lncRNAs) are potential biomarkers that play key roles in tumor development and progression. Differentiation antagonizing non-protein noding RNA (DANCR) is a novel lncRNA that acts as a potential biomarker and is involved in the development of cancers. However, the clinical significance and molecular mechanism of DANCR in bladder cancer is still unknown. Methods The relative expression level of DANCR was determined by Real-Time qPCR in a total of 106 patients with urothelial bladder cancer and in different bladder cancer cell lines. Loss-of-function experiments were performed to investigate the biological roles of DANCR on bladder cancer cell proliferation, migration, invasion and tumorigenicity. Comprehensive transcriptional analysis, RNA-FISH, dual-luciferase reporter assay and western blot were performed to explore the molecular mechanisms underlying the functions of DANCR. Results In this study, we found that DANCR was significantly up-regulated in bladder cancer. Moreover, increased DANCR expression was positively correlated with higher histological grade and advanced TNM stage. Further experiments demonstrated that knockdown of DANCR inhibited malignant phenotypes and epithelial-mesenchymal transition (EMT) of bladder cancer cells. Mechanistically, we found that DANCR was distributed mostly in the cytoplasm and DANCR functioned as a miRNA sponge to positively regulate the expression of musashi RNA binding protein 2 (MSI2) through sponging miR-149 and subsequently promoted malignant phenotypes of bladder cancer cells, thus playing an oncogenic role in bladder cancer pathogenesis. Conclusion This study is the first to demonstrate that DANCR plays a critical regulatory role in bladder cancer cell and DANCR may serve as a potential diagnostic biomarker and therapeutic target of bladder cancer. Electronic supplementary material The online version of this article (10.1186/s13046-018-0921-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yonghao Zhan
- Department of Urology, Peking University First Hospital, The Institute of Urology, Peking University, National Urological Cancer Centre, No. 8 Xishiku street, Beijing, 100034, China
| | - Zhicong Chen
- Department of Urology, Peking University First Hospital, The Institute of Urology, Peking University, National Urological Cancer Centre, No. 8 Xishiku street, Beijing, 100034, China
| | - Yifan Li
- Department of Urology, Peking University First Hospital, The Institute of Urology, Peking University, National Urological Cancer Centre, No. 8 Xishiku street, Beijing, 100034, China
| | - Anbang He
- Department of Urology, Peking University First Hospital, The Institute of Urology, Peking University, National Urological Cancer Centre, No. 8 Xishiku street, Beijing, 100034, China
| | - Shiming He
- Department of Urology, Peking University First Hospital, The Institute of Urology, Peking University, National Urological Cancer Centre, No. 8 Xishiku street, Beijing, 100034, China
| | - Yanqing Gong
- Department of Urology, Peking University First Hospital, The Institute of Urology, Peking University, National Urological Cancer Centre, No. 8 Xishiku street, Beijing, 100034, China
| | - Xuesong Li
- Department of Urology, Peking University First Hospital, The Institute of Urology, Peking University, National Urological Cancer Centre, No. 8 Xishiku street, Beijing, 100034, China.
| | - Liqun Zhou
- Department of Urology, Peking University First Hospital, The Institute of Urology, Peking University, National Urological Cancer Centre, No. 8 Xishiku street, Beijing, 100034, China.
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Kumar S, Downie Ruiz Velasco A, Michlewski G. Oleic Acid Induces MiR-7 Processing through Remodeling of Pri-MiR-7/Protein Complex. J Mol Biol 2017; 429:1638-1649. [PMID: 28483648 PMCID: PMC5462424 DOI: 10.1016/j.jmb.2017.05.001] [Citation(s) in RCA: 14] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 05/01/2017] [Accepted: 05/02/2017] [Indexed: 12/13/2022]
Abstract
MicroRNAs (miRs) play a vital role in governing cell function, with their levels tightly controlled at transcriptional and post-transcriptional levels. Different sets of RNA-binding proteins interact with primary miRs (pri-miRs) and precursor-miR transcripts (pre-miRs), controlling their biogenesis post-transcriptionally. The Hu antigen R (HuR)-mediated binding of Musashi homolog2 (MSI2) to the conserved terminal loop of pri-miR-7 regulates the levels of brain-enriched miR-7 formation in a tissue-specific manner. Here, we show that oleic acid (OA) inhibits the binding of proteins containing RNA recognition motifs (RRM) to the conserved terminal loop of pri-miR-7. Using electrophoretic mobility shift assays in HeLa cell extracts, we show that OA treatment disrupts pre-miR/protein complexes. Furthermore, OA rescues in vitro processing of pri-miR-7, which is otherwise blocked by HuR and MSI2 proteins. On the contrary, pri-miR-16 shows reduced processing in the presence of OA. This indicates that OA may inhibit the binding of other RRM-containing protein/s necessary for miR-16 processing. Finally, we demonstrate that OA induces mature miR-7 production in HeLa cells. Together, our results demonstrate that OA can regulate the processing of pri-miRs by remodeling their protein complexes. This provides a new tool to study RNA processing and a potential lead for small molecules that target the miR-7 biogenesis pathway. OA inhibits the binding of proteins containing RRM. OA rescues processing of pri-miR-7 in vitro. OA induces mature miR-7 production in HeLa cells.
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Affiliation(s)
- Santosh Kumar
- Wellcome Trust Centre for Cell Biology, University of Edinburgh, Michael Swann Building, Edinburgh, EH9 3BF, UK
| | - Angela Downie Ruiz Velasco
- Wellcome Trust Centre for Cell Biology, University of Edinburgh, Michael Swann Building, Edinburgh, EH9 3BF, UK
| | - Gracjan Michlewski
- Wellcome Trust Centre for Cell Biology, University of Edinburgh, Michael Swann Building, Edinburgh, EH9 3BF, UK.
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21
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Fang T, Lv H, Wu F, Wang C, Li T, Lv G, Tang L, Guo L, Tang S, Cao D, Wu M, Yang W, Wang H. Musashi 2 contributes to the stemness and chemoresistance of liver cancer stem cells via LIN28A activation. Cancer Lett 2016; 384:50-59. [PMID: 27721018 DOI: 10.1016/j.canlet.2016.10.007] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [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: 08/09/2016] [Revised: 09/29/2016] [Accepted: 10/02/2016] [Indexed: 12/29/2022]
Abstract
Accumulating evidence suggests that cancer stem cells (CSCs), a small subset of cancer cells, are responsible for tumor initiation, progression, relapse and metastasis. Musashi 2 (MSI2), a RNA-binding protein, was proposed to be a potent oncogene playing key roles in myeloid leukemia and gastrointestinal malignancies. However, it remains elusive how MSI2 regulates stem cell features in HCC. Herein, we demonstrated that MSI2 was highly expressed in liver CSCs. Overexpression or knockdown of MSI2 altered CSC-related gene expression, self-renewal as well as resistance to chemotherapy in HCC cell lines. In mouse xenograft models, MSI2 could markedly enhance tumorigenicity. Mechanistically, overexpression of MSI2 resulted in the upregulation of Lin28A. Stemness and chemotherapeutic drug resistance induced by MSI2 overexpression were dramatically reduced by Lin28A knockdown. Moreover, MSI2 and LIN28A levels positively correlated with the clinical severity and prognosis in HCC patients. In conclusion, MSI2 might play a crucial role in sustaining stemness and chemoresistance of liver CSCs via LIN28A-dependent manner in HCC. Our findings revealed that MSI2 and Lin28A might be used as potential therapeutic targets for eradicating liver CSCs.
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Affiliation(s)
- Tian Fang
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, PR China
| | - Hongwei Lv
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, PR China
| | - Fuquan Wu
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, PR China
| | - Changzheng Wang
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, PR China
| | - Ting Li
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, PR China
| | - Guishuai Lv
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, PR China; National Center for Liver Cancer Research, Shanghai, PR China
| | - Liang Tang
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, PR China; National Center for Liver Cancer Research, Shanghai, PR China
| | - Linna Guo
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, PR China; National Center for Liver Cancer Research, Shanghai, PR China
| | - Shanhua Tang
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, PR China; National Center for Liver Cancer Research, Shanghai, PR China
| | - Dan Cao
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, PR China; National Center for Liver Cancer Research, Shanghai, PR China
| | - Mengchao Wu
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, PR China; National Center for Liver Cancer Research, Shanghai, PR China
| | - Wen Yang
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, PR China; National Center for Liver Cancer Research, Shanghai, PR China.
| | - Hongyang Wang
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, PR China; National Center for Liver Cancer Research, Shanghai, PR China; State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200032, PR China.
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Kudinov AE, Deneka A, Nikonova AS, Beck TN, Ahn YH, Liu X, Martinez CF, Schultz FA, Reynolds S, Yang DH, Cai KQ, Yaghmour KM, Baker KA, Egleston BL, Nicolas E, Chikwem A, Andrianov G, Singh S, Borghaei H, Serebriiskii IG, Gibbons DL, Kurie JM, Golemis EA, Boumber Y. Musashi-2 ( MSI2) supports TGF-β signaling and inhibits claudins to promote non-small cell lung cancer (NSCLC) metastasis. Proc Natl Acad Sci U S A 2016; 113:6955-60. [PMID: 27274057 DOI: 10.1073/pnas.1513616113] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) has a 5-y survival rate of ∼16%, with most deaths associated with uncontrolled metastasis. We screened for stem cell identity-related genes preferentially expressed in a panel of cell lines with high versus low metastatic potential, derived from NSCLC tumors of Kras(LA1/+);P53(R172HΔG/+) (KP) mice. The Musashi-2 (MSI2) protein, a regulator of mRNA translation, was consistently elevated in metastasis-competent cell lines. MSI2 was overexpressed in 123 human NSCLC tumor specimens versus normal lung, whereas higher expression was associated with disease progression in an independent set of matched normal/primary tumor/lymph node specimens. Depletion of MSI2 in multiple independent metastatic murine and human NSCLC cell lines reduced invasion and metastatic potential, independent of an effect on proliferation. MSI2 depletion significantly induced expression of proteins associated with epithelial identity, including tight junction proteins [claudin 3 (CLDN3), claudin 5 (CLDN5), and claudin 7 (CLDN7)] and down-regulated direct translational targets associated with epithelial-mesenchymal transition, including the TGF-β receptor 1 (TGFβR1), the small mothers against decapentaplegic homolog 3 (SMAD3), and the zinc finger proteins SNAI1 (SNAIL) and SNAI2 (SLUG). Overexpression of TGFβRI reversed the loss of invasion associated with MSI2 depletion, whereas overexpression of CLDN7 inhibited MSI2-dependent invasion. Unexpectedly, MSI2 depletion reduced E-cadherin expression, reflecting a mixed epithelial-mesenchymal phenotype. Based on this work, we propose that MSI2 provides essential support for TGFβR1/SMAD3 signaling and contributes to invasive adenocarcinoma of the lung and may serve as a predictive biomarker of NSCLC aggressiveness.
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Luan Z, Lu T, Ruan Y, Yue W, Zhang D. The Human MSI2 Gene is Associated with Schizophrenia in the Chinese Han Population. Neurosci Bull 2016; 32:239-45. [PMID: 27059221 DOI: 10.1007/s12264-016-0026-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 11/29/2015] [Accepted: 01/25/2016] [Indexed: 02/02/2023] Open
Abstract
It has been suggested that altered neurogenesis may be involved in the etiology of schizophrenia, so genes impacting on neurogenesis could be potential candidates for schizophrenia. A member of the Musashi family, the human MSI2 gene plays a substantial role in stem-cell maintenance, asymmetric division, and differentiation during neurogenesis. Our previous genome-wide association study (GWAS) implied an association of MSI2 with schizophrenia in a Han Chinese population. To further explore this association, three single-nucleotide polymorphisms (SNPs), rs9892791, rs11657292, and rs1822381, were selected for a replication study involving 921 schizophrenia cases and 1244 controls. After rigorous Bonferroni correction, two of the SNPs (rs9892791 and rs11657292) displayed significant differences in allele and genotype distribution frequencies between the case and control groups. When our GWAS and replication samples were combined, the three MSI2 SNPs were all strongly associated with schizophrenia (rs9892791: allelic P = 1.07E-5; rs11657292: allelic P = 1.95E-12; rs1822381: allelic P = 1.44E-4). These results indicate that the human MSI2 gene might be a susceptibility gene for schizophrenia and encourage future research on the functional relationship between this gene and schizophrenia.
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Affiliation(s)
- Zhilin Luan
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China.,The Sixth Hospital and Institute of Mental Health, Peking University, Beijing, 100191, China.,Key Laboratory of Mental Health, Ministry of Health and National Clinical Research Center for Mental Disorders (Peking University), Beijing, 100191, China
| | - Tianlan Lu
- The Sixth Hospital and Institute of Mental Health, Peking University, Beijing, 100191, China.,Key Laboratory of Mental Health, Ministry of Health and National Clinical Research Center for Mental Disorders (Peking University), Beijing, 100191, China
| | - Yanyan Ruan
- The Sixth Hospital and Institute of Mental Health, Peking University, Beijing, 100191, China.,Key Laboratory of Mental Health, Ministry of Health and National Clinical Research Center for Mental Disorders (Peking University), Beijing, 100191, China
| | - Weihua Yue
- The Sixth Hospital and Institute of Mental Health, Peking University, Beijing, 100191, China.,Key Laboratory of Mental Health, Ministry of Health and National Clinical Research Center for Mental Disorders (Peking University), Beijing, 100191, China
| | - Dai Zhang
- The Sixth Hospital and Institute of Mental Health, Peking University, Beijing, 100191, China. .,Key Laboratory of Mental Health, Ministry of Health and National Clinical Research Center for Mental Disorders (Peking University), Beijing, 100191, China.
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Kaeda J, Ringel F, Oberender C, Mills K, Quintarelli C, Pane F, Koschmieder S, Slany R, Schwarzer R, Saglio G, Hemmati P, van Lessen A, Amini L, Gresse M, Vagge E, Burmeister T, Serra A, Carson A, Schwarz M, Westermann J, Jundt F, Dörken B, le Coutre P. Up-regulated MSI2 is associated with more aggressive chronic myeloid leukemia. Leuk Lymphoma 2015; 56:2105-13. [PMID: 25363400 DOI: 10.3109/10428194.2014.981175] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [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: 12/28/2022]
Abstract
A better understanding of events triggering chronic myeloid leukemia progression is critical for optimized clinical management of chronic myeloid leukemia (CML). We sought to validate that increased expression of Musashi 2 (MSI2), a post-transcription regulator, is associated with progression and prognosis. Screening of 152 patients with CML showed that MSI2 was significantly decreased among patients with CML in chronic phase (CP) at diagnosis (p < 0.0001), but found no significant difference between the normal control group and treated patients with CML in CP. Moreover MSI2 was significantly increased (p < 0.0001) in patients with advance disease (AD) CML. Furthermore, our human hematopoietic cell line data imply that MSI2 and BCR-ABL1 mRNA expression are correlated. However, these data cast a doubt on earlier reports that MSI2 effects HES1 expression via NUMB-NOTCH signaling.
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Affiliation(s)
- Jaspal Kaeda
- Charité, Universitätsmedizin Berlin, Campus Virchow Klinikum, Medizinische Klinik m.S. Hämatologie und Onkologie , Berlin , Germany
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Aly RM, Ghazy HF. Prognostic significance of MSI2 predicts unfavorable outcome in adult B-acute lymphoblastic leukemia. Int J Lab Hematol 2014; 37:272-8. [PMID: 25090928 DOI: 10.1111/ijlh.12284] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [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: 03/05/2014] [Accepted: 06/26/2014] [Indexed: 12/24/2022]
Abstract
INTRODUCTION The Musashi-2 gene (MSI2) is implicated in leukemogenesis, and high MSI2 expression has been associated with decreased survival in acute myeloid leukemia (AML) and acute lymphoid leukemia (ALL), suggesting its use as a new prognostic marker. We aimed to validate the prognostic significance of MSI2 in ALL. METHODS MSI2 expression was measured by real-time polymerase chain reaction in 140 adult B-ALL patients and compared to controls. RESULTS MSI2 expression level in patients was significantly higher when compared to the control group (P = 0.001). High MSI2 expression did not correlate with the clinical characteristics of patients. However, patients with high MSI2 expression had significantly lower incidence of complete remission (CR) (P = 0.03), inferior overall survival (P = 0.018), and shorter disease-free survival (P = 0.001). Multivariate analysis revealed that high MSI2 expression was an independent prognostic factor for adult BCR-ABL1-negative B-ALL patients. CONCLUSION These results confirm the association of MSI2 expression with outcome in adult B-ALL and demonstrate the utility of MSI2 as a clinical prognostic biomarker.
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Affiliation(s)
- R M Aly
- Clinical Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
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Di Giacomo D, Pierini V, Barba G, Ceccarelli V, Vecchini A, Mecucci C. Blast crisis Ph+ chronic myeloid leukemia with NUP98/HOXA13 up-regulating MSI2. Mol Cytogenet 2014; 7:42. [PMID: 24971156 PMCID: PMC4071805 DOI: 10.1186/1755-8166-7-42] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [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: 04/17/2014] [Accepted: 06/13/2014] [Indexed: 11/18/2022] Open
Abstract
Background Musashi2(Msi2)-Numb pathway de-regulation is a molecular mechanism underlying the transition of chronic phase Ph + CML to deadly blast crisis, particularly in cases with a NUP98/HOXA9 fusion from a t(7;11)(p15;p15). This study provides new insights on the mechanisms cooperating in driving MSI2 over-expression and progression of Ph-positive CML. Results Herein we describe a t(7;11)(p15;p15) originating a NUP98 fusion with HOXA13, at 7p15, in a 39 year-old man in blast crisis of Ph-positive CML. Both MSI2 and HOXA9 were evaluated by quantitative RT-PCR in our patient and in a series of haematological malignancies. Up-regulation of both genes emerged only in the presence of NUP98/HOXA13 gene fusion. However, over-expression of MSI2, but not HOXA9, was found in 2 cases of Ph + blast crisis with additional chromosome aberrations other than t(7;11). To determine the mechanisms underlying MSI2 over-expression in our patient we performed Chromatin Immunoprecipitation and found that NUP98/HOXA13 fusion protein deregulates MSI2 gene by binding its promoter. Conclusions To the best of our knowledge, this is the first molecular characterization of NUP98/HOXA13 fusion in blast crisis of Ph + CML. Our findings suggest cooperative mechanisms of MSI2 over-expression driven by HOXA proteins and strongly supports MSI2 as a prognostic marker and a candidate in target treatment of CML.
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Affiliation(s)
- Danika Di Giacomo
- Hematology and Bone Marrow Transplantation Unit, University of Perugia, Polo Unico S. Maria della Misericordia, Perugia, Italy
| | - Valentina Pierini
- Hematology and Bone Marrow Transplantation Unit, University of Perugia, Polo Unico S. Maria della Misericordia, Perugia, Italy
| | - Gianluca Barba
- Hematology and Bone Marrow Transplantation Unit, University of Perugia, Polo Unico S. Maria della Misericordia, Perugia, Italy
| | | | - Alba Vecchini
- Department of Internal Medicine, University of Perugia, Perugia, Italy
| | - Cristina Mecucci
- Hematology and Bone Marrow Transplantation Unit, University of Perugia, Polo Unico S. Maria della Misericordia, Perugia, Italy
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Emadi-Baygi M, Nikpour P, Mohammad-Hashem F, Maracy MR, Haghjooy-Javanmard S. MSI2 expression is decreased in grade II of gastric carcinoma. Pathol Res Pract 2013; 209:689-91. [PMID: 24002004 DOI: 10.1016/j.prp.2013.07.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2013] [Revised: 07/15/2013] [Accepted: 07/29/2013] [Indexed: 12/12/2022]
Abstract
Gastric cancer is the second most frequent cause of cancer death worldwide. In Iran, gastric cancer is the first cause of national cancer-related mortality in men and the second one in women. In mammals, the Musashi family of RNA binding proteins comprises the Musashi1 and Musashi2 proteins, encoded by the MSI1 and MSI2 genes. Mammalian Musashi contributes to the self-renewal of various types of stem cells. Furthermore, there is mounting evidence that stem cells exist in many tissues. Due to this, Msi appears to be associated with tumorigenesis. In the present study, 30 paired gastric tissue samples were examined for MSI2 gene expression by quantitative real-time RT-PCR. Our results demonstrated that the relative expression of the gene did not significantly alter between tumoral and non-tumoral tissues and different tumor types; but there was a statistical difference between the MSI2 gene expression in different tumor grades, of note between grade I and grade II.
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Affiliation(s)
- Modjtaba Emadi-Baygi
- Department of Genetics, Faculty of Basic Sciences, Shahrekord University, Shahrekord, Iran; Research Institute of Biotechnology, Shahrekord University, Shahrekord, Iran
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