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Saedi H, Waro G, Giacchetta L, Tsunoda S. miR-137 regulates PTP61F, affecting insulin signaling, metabolic homeostasis, and starvation resistance in Drosophila. Proc Natl Acad Sci U S A 2024; 121:e2319475121. [PMID: 38252824 PMCID: PMC10835047 DOI: 10.1073/pnas.2319475121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 12/13/2023] [Indexed: 01/24/2024] Open
Abstract
miR-137 is a highly conserved brain-enriched microRNA (miRNA) that has been associated with neuronal function and proliferation. Here, we show that Drosophila miR-137 null mutants display increased body weight with enhanced triglyceride content and decreased locomotor activity. In addition, when challenged by nutrient deprivation, miR-137 mutants exhibit reduced motivation to feed and prolonged survival. We show through genetic epistasis and rescue experiments that this starvation resistance is due to a disruption in insulin signaling. Our studies further show that miR-137 null mutants exhibit a drastic reduction in levels of the phosphorylated/activated insulin receptor, InR (InR-P). We investigated if this is due to the predicted miR-137 target, Protein Tyrosine Phosphatase 61F (PTP61F), ortholog of mammalian TC-PTP/PTP1B, which are known to dephosphorylate InR-P. Indeed, levels of an endogenously tagged GFP-PTP61F are significantly elevated in miR-137 null mutants, and we show that overexpression of PTP61F alone is sufficient to mimic many of the metabolic phenotypes of miR-137 mutants. Finally, we knocked-down elevated levels of PTP61F in the miR-137 null mutant background and show that this rescues levels of InR-P, restores normal body weight and triglyceride content, starvation sensitivity, as well as attenuates locomotor and starvation-induced feeding defects. Our study supports a model in which miR-137 is critical for dampening levels of PTP61F, thereby maintaining normal insulin signaling and energy homeostasis.
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Affiliation(s)
- Hana Saedi
- Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80523
| | - Girma Waro
- Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80523
| | - Lea Giacchetta
- Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80523
| | - Susan Tsunoda
- Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80523
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2
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Camacho-Concha N, Santana-Román ME, Sánchez NC, Velasco I, Pando-Robles V, Pedraza-Alva G, Pérez-Martínez L. Insights into Zika Virus Pathogenesis and Potential Therapeutic Strategies. Biomedicines 2023; 11:3316. [PMID: 38137537 PMCID: PMC10741857 DOI: 10.3390/biomedicines11123316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 11/10/2023] [Accepted: 11/11/2023] [Indexed: 12/24/2023] Open
Abstract
Zika virus (ZIKV) has emerged as a significant public health threat, reaching pandemic levels in 2016. Human infection with ZIKV can manifest as either asymptomatic or as an acute illness characterized by symptoms such as fever and headache. Moreover, it has been associated with severe neurological complications in adults, including Guillain-Barre syndrome, and devastating fetal abnormalities, like microcephaly. The primary mode of transmission is through Aedes spp. mosquitoes, and with half of the world's population residing in regions where Aedes aegypti, the principal vector, thrives, the reemergence of ZIKV remains a concern. This comprehensive review provides insights into the pathogenesis of ZIKV and highlights the key cellular pathways activated upon ZIKV infection. Additionally, we explore the potential of utilizing microRNAs (miRNAs) and phytocompounds as promising strategies to combat ZIKV infection.
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Affiliation(s)
- Nohemi Camacho-Concha
- Laboratorio de Neuroinmunobiología, Departamento de Medicina Molecular y Bioprocesos, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca 62210, Morelos, Mexico; (N.C.-C.); (M.E.S.-R.); (N.C.S.); (G.P.-A.)
| | - María E. Santana-Román
- Laboratorio de Neuroinmunobiología, Departamento de Medicina Molecular y Bioprocesos, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca 62210, Morelos, Mexico; (N.C.-C.); (M.E.S.-R.); (N.C.S.); (G.P.-A.)
| | - Nilda C. Sánchez
- Laboratorio de Neuroinmunobiología, Departamento de Medicina Molecular y Bioprocesos, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca 62210, Morelos, Mexico; (N.C.-C.); (M.E.S.-R.); (N.C.S.); (G.P.-A.)
| | - Iván Velasco
- Instituto de Fisiología Celular-Neurociencias, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
- Laboratorio de Reprogramación Celular, Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suárez”, Ciudad de México 14269, Mexico
| | - Victoria Pando-Robles
- Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca 62100, Morelos, Mexico;
| | - Gustavo Pedraza-Alva
- Laboratorio de Neuroinmunobiología, Departamento de Medicina Molecular y Bioprocesos, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca 62210, Morelos, Mexico; (N.C.-C.); (M.E.S.-R.); (N.C.S.); (G.P.-A.)
| | - Leonor Pérez-Martínez
- Laboratorio de Neuroinmunobiología, Departamento de Medicina Molecular y Bioprocesos, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca 62210, Morelos, Mexico; (N.C.-C.); (M.E.S.-R.); (N.C.S.); (G.P.-A.)
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3
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Yu Q, Zhang Y, Tian Y, Peng A, Cui X, Ding B, Yang L, Liu Y, Ju Y, Gao C. Exosomal Circ_FMN2 Derived from the Serum of Colorectal Cancer Patients Promotes Cancer Progression by miR-338-3p/MSI1 Axis. Appl Biochem Biotechnol 2023; 195:7322-7337. [PMID: 36995659 DOI: 10.1007/s12010-023-04456-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/15/2023] [Indexed: 03/31/2023]
Abstract
BACKGROUND Colorectal cancer (CRC) is a common malignancy of the gastrointestinal tract with high incidence and mortality. Exosomal circular RNA (circRNA) has been shown to be associated with the malignant progression of cancers, including CRC. Circ_0005100 (named as circ_FMN2) has been shown to promote CRC cell proliferation and migration. However, whether exosomal circ_FMN2 participated in CRC progression remains unclear. METHODS Exosomes were isolated from the serum of CRC patients and then identified using transmission electron microscope. Western blot assay was used to test the protein levels of exosome markers, proliferation-related marker, metastasis-related markers and musashi-1 (MSI1). The expression levels of circ_FMN2, microRNA (miR)-338-3p and MSI1 were detected by qPCR. Flow cytometry, colony formation assay, MTT assay, and transwell assay were employed to measure cell cycle, apoptosis, colony formation ability, viability, migration and invasion. Dual-luciferase reporter assay was performed to assess the interaction between miR-338-3p and circ_FMN2 or MSI1. BALB/c nude mice was used to conduct animal experiments. RESULTS Circ_FMN2 was overexpressed in the exosomes of CRC patient's serums and CRC cells. Overexpressed exosomal circ_FMN2 could promote CRC cell proliferation, metastasis, and suppress apoptosis. Circ_FMN2 acted as miR-338-3p sponge. MiR-338-3p overexpression reversed the promotion effect of circ_FMN2 on CRC progression. MSI1 was found to be a target of miR-338-3p, and its overexpression revoked the inhibitory effect of miR-338-3p on CRC progression. Furthermore, exosomal circ_FMN2 overexpression also could facilitate CRC tumor growth in vivo. CONCLUSION Exosomal circ_FMN2 accelerated CRC progression through miR-338-3p/MSI1 axis, revealing that exosomal circ_FMN2 might be a target for CRC treatment.
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Affiliation(s)
- Qiyao Yu
- Department of Research, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yi Zhang
- Department of Physiology, Hebei Medical University, Shijiazhuang, 050011, Hebei Province, China
| | - Yanming Tian
- Department of Physiology, Hebei Medical University, Shijiazhuang, 050011, Hebei Province, China
| | - Ale Peng
- Department of Radiation Oncology, The Fourth Hospital of Hebei Medical University, No. 12, Jian Kang Road, Shijiazhuang, 050011, Hebei Province, China
| | - Xiujing Cui
- Department of Radiation Oncology, The Fourth Hospital of Hebei Medical University, No. 12, Jian Kang Road, Shijiazhuang, 050011, Hebei Province, China
| | - Boyue Ding
- Department of Radiation Oncology, The Fourth Hospital of Hebei Medical University, No. 12, Jian Kang Road, Shijiazhuang, 050011, Hebei Province, China
| | - Lei Yang
- Department of Radiation Oncology, The Fourth Hospital of Hebei Medical University, No. 12, Jian Kang Road, Shijiazhuang, 050011, Hebei Province, China
| | - Yabin Liu
- Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yingchao Ju
- Department of experimental animal center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Chao Gao
- Department of Radiation Oncology, The Fourth Hospital of Hebei Medical University, No. 12, Jian Kang Road, Shijiazhuang, 050011, Hebei Province, China.
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Weidle UH, Nopora A. Up-regulated Circular RNAs in Colorectal Cancer: New Entities for Therapy and Tools for Identification of Therapeutic Targets. Cancer Genomics Proteomics 2023; 20:132-153. [PMID: 36870691 PMCID: PMC9989668 DOI: 10.21873/cgp.20369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/20/2022] [Accepted: 12/28/2022] [Indexed: 03/06/2023] Open
Abstract
Patients with disseminated colorectal cancer have a dismal prognosis with a 5-year survival rate of only 13%. In order to identify new treatment modalities and new targets, we searched the literature for up-regulated circular RNAs in colorectal cancer which induce tumor growth in corresponding preclinical in vivo models. We identified nine circular RNAs that mediate resistance against chemotherapeutic agents, seven that up-regulate transmembrane receptors, five that induce secreted factors, nine that activate signaling components, five which up-regulate enzymes, six which activate actin-related proteins, six which induce transcription factors and two which up-regulate the MUSASHI family of RNA binding proteins. All of the circular RNAs discussed in this paper induce the corresponding targets by sponging microRNAs (miRs) and can be inhibited by RNAi or shRNA in vitro and in xenograft models. We have focused on circular RNAs with demonstrated activity in preclinical in vivo models because the latter is an important milestone in drug development. All circular RNAs with in vitro activity only data are not referenced in this review. The translational impact of inhibition of these circular RNAs and of the identified targets for treatment of colorectal cancer (CRC) are discussed.
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Affiliation(s)
- Ulrich H Weidle
- Roche Pharma Research and Early Development, Roche Innovation Center Munich, Penzberg, Germany
| | - Adam Nopora
- Roche Pharma Research and Early Development, Roche Innovation Center Munich, Penzberg, Germany
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Seif S, Afra N, Dadgar E, Enteghad S, Argani P, Aghdasi N, Masouleh SS, Barati G. The expression of salivary microRNAs in oral lichen planus: Searching for a prognostic biomarker. Pathol Res Pract 2022; 234:153923. [PMID: 35526303 DOI: 10.1016/j.prp.2022.153923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/13/2022] [Accepted: 04/24/2022] [Indexed: 11/19/2022]
Abstract
Oral lichen planus (OLP) is a premalignant disease with unknown etiology. It has been demonstrated that inflammation and immune activation play a central role in the pathogenesis of OLP. Various cellular and molecular mechanisms are involved in the pathogenesis of OLP. Studies have shown that 2-7% of OLP patients develop oral squamous cell carcinoma (OSCC). As a result, determining the prognosis of the disease will be promising in preventing oral carcinoma. MicroRNAs are involved in the regulation of cytokine expression and cytokines have a central role in the pathogenesis of OLP. As a result, their evaluation in body fluids may be helpful in assessing the disease's status and progression, and facilitating the treatment process. In this regard, much attention has been paid to the saliva of OLP patients as the sampling is cost-effective and non-invasive. Here, we discuss the potential of miRNAs in predicting the disease severity and progression.
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Affiliation(s)
- Sepideh Seif
- Faculty of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Narges Afra
- Faculty of Dentistry, Hormozgan University of Medical Sciences, Bandarabbas, Iran
| | - Esmaeel Dadgar
- Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shabnam Enteghad
- Faculty of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Pendar Argani
- Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Noura Aghdasi
- Faculty of Dentistry, Inonu University, Malatya, Turkey
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6
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RNA-binding proteins and cancer metastasis. Semin Cancer Biol 2022; 86:748-768. [PMID: 35339667 DOI: 10.1016/j.semcancer.2022.03.018] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 03/18/2022] [Accepted: 03/21/2022] [Indexed: 12/13/2022]
Abstract
RNA-binding proteins (RBPs) can regulate gene expression through post-transcriptionally influencing all manner of RNA biology, including alternative splicing (AS), polyadenylation, stability, and translation of mRNAs, as well as microRNAs (miRNAs) and circular RNAs (circRNAs) processing. There is accumulating evidence reinforcing the perception that dysregulation or dysfunction of RBPs can lead to various human diseases, including cancers. RBPs influence diverse cancer-associated cellular phenotypes, such as proliferation, apoptosis, senescence, migration, invasion, and angiogenesis, contributing to the initiation and development of tumors, as well as clinical prognosis. Metastasis is the leading cause of cancer-related recurrence and death. Therefore, it is necessary to elucidate the molecular mechanisms behind tumor metastasis. In fact, a growing body of published research has proved that RBPs play pivotal roles in cancer metastasis. In this review, we will summarize the recent advances for helping us understand the role of RBPs in tumor metastasis, and discuss dysfunctions and dysregulations of RBPs affecting metastasis-associated processes including epithelial-mesenchymal transition (EMT), migration, and invasion of cancer cells. Furthermore, we will discuss emerging RBP-based strategy for the treatment of cancer metastasis.
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7
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Yue T, Liu X, Zuo S, Zhu J, Li J, Liu Y, Chen S, Wang P. BCL2A1 and CCL18 Are Predictive Biomarkers of Cisplatin Chemotherapy and Immunotherapy in Colon Cancer Patients. Front Cell Dev Biol 2022; 9:799278. [PMID: 35265629 PMCID: PMC8898943 DOI: 10.3389/fcell.2021.799278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/29/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Cisplatin enhances the antitumor T cell response, and the combination of PD-L1 blockade produces a synergistic therapeutic effect. However, the clinical correlation between cisplatin and immunotherapy in colon cancer (CC) is unknown. Methods: Using the “pRRophetic” package, we calculated the IC50 of cisplatin. The correlation between cisplatin IC50, cisplatin resistance–related genes (CCL18 and BCL2A1), and immunotherapy were preliminarily verified in TCGA and further validated in independent cohorts (GSE39582 and GSE17538), cisplatin-resistant CC cell line DLD1, and our own clinical specimens. Classification performance was evaluated using the AUC value of the ROC curve. Scores of immune signatures, autophagy, ferroptosis, and stemness were quantified using the ssGSEA algorithm. Results: Based on respective medians of three CC cohorts, patients were divided into high- and low-IC50 groups. Compared with the high IC50 group, the low-IC50 group had significantly higher tumor microenvironment (TME) scores and lower tumor purity. Most co-signaling molecules were upregulated in low IC50 group. CC patients with good immunotherapy efficacy (MSI, dMMR, and more TMB) were more attributable to the low-IC50 group. Among seven shared differentially expressed cisplatin resistance–related genes, CCL18 and BCL2A1 had the best predictive efficacy of the above immunotherapy biomarkers. For wet experimental verification, compared with cisplatin-resistant DLD1, similar to PD-L1, CCL18 and BCL2A1 were significantly upregulated in wild-type DLD1. In our own CC tissues, the mRNA expression of CCL18, BCL2A1, and PD-L1 in dMMR were significantly increased. The high group of CCL18 or BCL2A1 had a higher proportion of MSI, dMMR, and more TMB. IC50, CCL18, BCL2A1, and PD-L1 were closely related to scores of immune-related pathways, immune signatures, autophagy, ferroptosis, and stemness. The microRNA shared by BCL2A1 and PD-L1, hsa-miR-137, were significantly associated with CCL18, BCL2A1, and PD-L1, and downregulated in low-IC50 group. The activity of the TOLL-like receptor signaling pathway affected the sensitivity of CC patients to cisplatin and immunotherapy. For subtype analysis, immune C2, immune C6, HM-indel, HM-SNV, C18, and C20 were equally sensitive to cisplatin chemotherapy and immunotherapy. Conclusions: CC patients sensitive to cisplatin chemotherapy were also sensitive to immunotherapy. CCL18 and BCL2A1 were novel biomarkers for cisplatin and immunotherapy.
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Affiliation(s)
- Taohua Yue
- Division of General Surgery, Peking University First Hospital, Peking University, Beijing, China
| | - Xiangzheng Liu
- Department of Thoracic Surgery, Peking University First Hospital, Peking University, Beijing, China
| | - Shuai Zuo
- Division of General Surgery, Peking University First Hospital, Peking University, Beijing, China
| | - Jing Zhu
- Division of General Surgery, Peking University First Hospital, Peking University, Beijing, China
| | - Jichang Li
- Division of General Surgery, Peking University First Hospital, Peking University, Beijing, China
| | - Yucun Liu
- Division of General Surgery, Peking University First Hospital, Peking University, Beijing, China
| | - Shanwen Chen
- Division of General Surgery, Peking University First Hospital, Peking University, Beijing, China
| | - Pengyuan Wang
- Division of General Surgery, Peking University First Hospital, Peking University, Beijing, China
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8
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Zhang Y, Yu H, Guo Z. Circ_KIAA1199 inhibits MSI1 degradation by targeting miR-34c-5p to drive the malignant cell behaviors and tumor growth of colorectal cancer. Anticancer Drugs 2022; 33:e134-e144. [PMID: 34387591 DOI: 10.1097/cad.0000000000001164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Circular RNAs (circRNAs) are important regulators that drive or inhibit cancer initiation and development. Here, we identified the expression and function of a circRNA, circ_KIAA1199, in colorectal cancer (CRC). The expression levels of circ_KIAA1199, microRNA-34c-5p (miR-34c-5p) and Musashi RNA-binding protein 1 (MSI1) mRNA were detected by quantitative real-time PCR. Cell proliferative capacity was assessed by colony formation assay, EdU assay and MTT assay. Cell apoptosis was determined by flow cytometry assay. Cell migration and cell invasion were investigated by transwell assay. The expression of MSI1 protein and proliferation, migration-related markers was detected by western blot. The relationship between miR-34c-5p and circ_KIAA1199 or MSI1 was verified by dual-luciferase reporter assay. Animal models were constructed to ascertain the role of circ_KIAA1199 in vivo. The expression of circ_KIAA1199 was elevated in CRC. Circ_KIAA1199 downregulation suppressed CRC cell proliferation, survival, migration and invasion. MiR-34c-5p was a target of circ_KIAA1199. The effects of circ_KIAA1199 downregulation were reversed by miR-34c-5p deficiency. In addition, MSI1 was a target of circ_KIAA1199, and the inhibitory effects of miR-34c-5p restoration on CRC cell proliferation, survival, migration and invasion were reversed by MSI1 overexpression. Circ_KIAA1199 positively regulated MSI1 expression by targeting miR-34c-5p. Moreover, circ_KIAA1199 knockdown blocked tumor growth in animal models. Circ_KIAA1199 functioned as an oncogene to drive the malignant development of CRC by activating MSI1 via competitively targeting miR-34c-5p.
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Affiliation(s)
- Yanbo Zhang
- Department of General Surgery, Liaocheng People's Hospital, Liaocheng City, Shandong Province, China
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Talebi-Yazdabadi Z, Jahanbakhsh N, Dormiani K, Forouzanfar M, Lachinani L, Zohrabi D, Tavalaee M, Nasr-Esfahani MH. Assessment of MUSASHI 1 and MUSASHI 2 expression in spermatozoa and testicular tissue. Andrologia 2021; 53:e14187. [PMID: 34309875 DOI: 10.1111/and.14187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 05/25/2021] [Accepted: 06/24/2021] [Indexed: 01/13/2023] Open
Abstract
MUSASHI (MSI) family plays the main role in the spermatogenesis process. The purpose of this study was the assessment of sperm MSI1 and MSI2, and sperm functional tests in infertile men (n = 30) with varicocele and fertile men (n = 30). Furthermore, MSI1 and MSI2 proteins were assessed in testicular tissue of azoospermic men (n = 9) as well as epididymal spermatozoa and testis of mice. Expression of MSI1 and MSI2 was assessed at RNA and protein levels in human spermatozoa. Sperm concentration and motility were significantly lower, while abnormal sperm morphology, lipid peroxidation, DNA fragmentation and protamine deficiency were significantly higher in men with varicocele compared to fertile individuals. Any significant difference was not observed in the expression of MSI1 and MSI2 mRNA between the two groups. Unlike MSI1 protein that was not detectable in humans, the relative expression of MSI2 protein was similar in varicocele and fertile individuals. The expression level of both Msi1 and Msi2 proteins was also observable in mouse spermatozoa. No significant relationship was observed between sperm functional parameters with expression of these genes. The data of this study demonstrated that although MSI1 and MSI2 play important roles during spermatogenesis, their relative expression in spermatozoa was not affected by varicocele.
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Affiliation(s)
- Zohreh Talebi-Yazdabadi
- Department of Animal Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran.,ACECR Institute of Higher Education, Isfahan, Iran
| | - Neda Jahanbakhsh
- Department of Animal Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran.,Department of Biology, Faculty of Science, NourDanesh Institute of Higher Education, Isfahan, Iran
| | - Kianoush Dormiani
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Mahboobeh Forouzanfar
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Liana Lachinani
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Dina Zohrabi
- ACECR Institute of Higher Education, Isfahan, Iran
| | - Marziyeh Tavalaee
- Department of Animal Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Mohammad Hossein Nasr-Esfahani
- Department of Animal Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran.,Isfahan Fertility and Infertility Center, Isfahan, Iran
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MiR-137-3p Inhibits Colorectal Cancer Cell Migration by Regulating a KDM1A-Dependent Epithelial-Mesenchymal Transition. Dig Dis Sci 2021; 66:2272-2282. [PMID: 32749639 DOI: 10.1007/s10620-020-06518-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 07/22/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND In colorectal cancer (CRC), miR-137-3p downregulation is associated with disease progression, but the mechanism is not fully understood. KDM1A, also known as LSD1, is upregulated in various cancer and promotes tumor metastasis. Interestingly, miR-137-3p is downregulated by hypoxia, which plays critical roles in tumor metastasis, and KDM1A is a miR-137-3p target gene in brain tumors. AIMS To study if CRC metastasis is regulated by a hypoxia/miR-137-3p/KDM1A axis and if the epithelial-mesenchymal transition (EMT) process is involved. METHODS We measured the levels of miR-137-3p, KDM1A, and some EMT markers in CRC biopsy tissues and cell lines. We also investigated the regulation of KDM1A by miR-137-3p and the effects of KDM1A inhibition on the EMT process and cell migration. RESULTS We verified the low miR-137-3p and high KDM1A levels in CRC tumors. Inhibiting miR-137-3p upregulated KDM1A expression and promoted the invasiveness of CRC cells. KDM1A knockdown, or treatment with tranylcypromine, a specific KDM1A inhibitor, reduced the migration and invasion of CRC cells by inhibiting the EMT process. CRC cells cultured under hypoxic conditions expressed less miR-137-3p but more KDM1A than cells cultured under normal conditions, implying the involvement of miR-137-3p and KDM1A in hypoxia-induced tumor metastasis. CONCLUSIONS We conclude that MiR-137-3p inhibits CRC cell migration by regulating a KDM1A-dependent EMT process. Our study suggests that restoring the expression of miR-137-3p or targeting KDM1A might be potential therapeutic strategies for CRC.
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11
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Bley N, Hmedat A, Müller S, Rolnik R, Rausch A, Lederer M, Hüttelmaier S. Musashi-1-A Stemness RBP for Cancer Therapy? BIOLOGY 2021; 10:407. [PMID: 34062997 PMCID: PMC8148009 DOI: 10.3390/biology10050407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 04/29/2021] [Accepted: 05/01/2021] [Indexed: 12/12/2022]
Abstract
The RNA-binding protein Musashi-1 (MSI1) promotes stemness during development and cancer. By controlling target mRNA turnover and translation, MSI1 is implicated in the regulation of cancer hallmarks such as cell cycle or Notch signaling. Thereby, the protein enhanced cancer growth and therapy resistance to standard regimes. Due to its specific expression pattern and diverse functions, MSI1 represents an interesting target for cancer therapy in the future. In this review we summarize previous findings on MSI1's implications in developmental processes of other organisms. We revisit MSI1's expression in a set of solid cancers, describe mechanistic details and implications in MSI1 associated cancer hallmark pathways and highlight current research in drug development identifying the first MSI1-directed inhibitors with anti-tumor activity.
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Affiliation(s)
- Nadine Bley
- Department for Molecular Cell Biology, Institute for Molecular Medicine, Martin Luther University Halle/Wittenberg, Charles Tanford Protein Center, Kurt–Mothes–Str. 3A, 06120 Halle, Germany; (A.H.); (S.M.); (R.R.); (A.R.); (M.L.); (S.H.)
- Core Facility Imaging, Institute for Molecular Medicine, Martin Luther University Halle-Wittenberg, Charles Tanford Protein Center, Kurt–Mothes–Str. 3A, 06120 Halle, Germany
| | - Ali Hmedat
- Department for Molecular Cell Biology, Institute for Molecular Medicine, Martin Luther University Halle/Wittenberg, Charles Tanford Protein Center, Kurt–Mothes–Str. 3A, 06120 Halle, Germany; (A.H.); (S.M.); (R.R.); (A.R.); (M.L.); (S.H.)
| | - Simon Müller
- Department for Molecular Cell Biology, Institute for Molecular Medicine, Martin Luther University Halle/Wittenberg, Charles Tanford Protein Center, Kurt–Mothes–Str. 3A, 06120 Halle, Germany; (A.H.); (S.M.); (R.R.); (A.R.); (M.L.); (S.H.)
| | - Robin Rolnik
- Department for Molecular Cell Biology, Institute for Molecular Medicine, Martin Luther University Halle/Wittenberg, Charles Tanford Protein Center, Kurt–Mothes–Str. 3A, 06120 Halle, Germany; (A.H.); (S.M.); (R.R.); (A.R.); (M.L.); (S.H.)
| | - Alexander Rausch
- Department for Molecular Cell Biology, Institute for Molecular Medicine, Martin Luther University Halle/Wittenberg, Charles Tanford Protein Center, Kurt–Mothes–Str. 3A, 06120 Halle, Germany; (A.H.); (S.M.); (R.R.); (A.R.); (M.L.); (S.H.)
- Core Facility Imaging, Institute for Molecular Medicine, Martin Luther University Halle-Wittenberg, Charles Tanford Protein Center, Kurt–Mothes–Str. 3A, 06120 Halle, Germany
| | - Marcell Lederer
- Department for Molecular Cell Biology, Institute for Molecular Medicine, Martin Luther University Halle/Wittenberg, Charles Tanford Protein Center, Kurt–Mothes–Str. 3A, 06120 Halle, Germany; (A.H.); (S.M.); (R.R.); (A.R.); (M.L.); (S.H.)
| | - Stefan Hüttelmaier
- Department for Molecular Cell Biology, Institute for Molecular Medicine, Martin Luther University Halle/Wittenberg, Charles Tanford Protein Center, Kurt–Mothes–Str. 3A, 06120 Halle, Germany; (A.H.); (S.M.); (R.R.); (A.R.); (M.L.); (S.H.)
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12
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Čelešnik H, Büdefeld T, Čizmarević B, Švagan M, Potočnik U. MIR137/MIR2682 locus is associated with perineural invasiveness in head and neck cancer. J Oral Pathol Med 2021; 50:874-881. [PMID: 33740841 DOI: 10.1111/jop.13174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 01/06/2021] [Accepted: 03/01/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Head and neck cancer (HNSCC) is one of the most lethal cancers characterized by high relapse and poor prognosis. Several miRNAs have been implicated in HNSCC, including the tumor suppressor miR-137. A large CpG island (CpG73) spans most of the miR-137 gene sequence and stretches 659-bp downstream, ending just upstream of miR-2682 in the same host gene. Here, we assessed the role of the MIR137/MIR2682 locus in HNSCC. METHODS MiRNA expression was analyzed in paired cancerous and normal tissues from 77 HNSCC patients by Quantitative Reverse-Transcription PCR. CpG73 methylation in paired tissues from 48 patients was determined by combined bisulfite restriction analysis. Associations between expression and methylation levels and patient clinicopathological parameters were investigated. RESULTS Decreased expression of miR-137 (P<0.01) and miR-2682 (P<0.01) precursors was observed in cancerous tissues, most significantly in oropharyngeal tumors. Lower miR-137 levels correlated with increased perineural invasiveness (P = 0.04). Predicted common miRNA targets MTDH and Notch1 were upregulated in tumor tissues. The CpG73 region between miR-137 and miR-2682 was hypermethylated in tumors. Methylation was observed in 60.4% of cancerous compared to 31.6% of normal tissues, and methylation levels were significantly higher (P<0.01) in tumors. Increased methylation correlated with decreased disease-free patient survival (P = 0.024). CONCLUSION The MIR137/MIR2682 locus correlated with HNSCC perineural invasiveness. This is the first report showing miR-2682 downregulation in head and neck cancer. Our results support the tumor suppressive role of miR-137 and miR-2682. The inverse correlation between CpG73 hypermethylation and disease-free survival suggests this epigenetic mark may have prognostic value in HNSCC.
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Affiliation(s)
- Helena Čelešnik
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia.,Faculty of Medicine, Center for Human Molecular Genetics & Pharmacogenomics, University of Maribor, Maribor, Slovenia
| | - Tomaž Büdefeld
- Faculty of Medicine, Center for Human Molecular Genetics & Pharmacogenomics, University of Maribor, Maribor, Slovenia
| | - Bogdan Čizmarević
- Department of Otorhinolaryngology, Cervical and Maxillofacial Surgery, University Medical Centre Maribor, Maribor, Slovenia
| | - Matija Švagan
- Department of Otorhinolaryngology, Cervical and Maxillofacial Surgery, University Medical Centre Maribor, Maribor, Slovenia
| | - Uroš Potočnik
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia.,Faculty of Medicine, Center for Human Molecular Genetics & Pharmacogenomics, University of Maribor, Maribor, Slovenia
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13
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Li L, Jiang Z, Zou X, Hao T. Exosomal circ_IFT80 Enhances Tumorigenesis and Suppresses Radiosensitivity in Colorectal Cancer by Regulating miR-296-5p/MSI1 Axis. Cancer Manag Res 2021; 13:1929-1941. [PMID: 33658855 PMCID: PMC7917334 DOI: 10.2147/cmar.s297123] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 02/02/2021] [Indexed: 12/11/2022] Open
Abstract
Background Exosomal circular RNAs (circRNAs) can act as biomarkers and play crucial roles in colorectal cancer (CRC) and radiosensitivity. The aim of this study was to explore the functions and regulatory mechanism of exosomal circRNA intraflagellar transport 80 (circ_IFT80) in tumorigenesis and radiosensitivity of CRC. Methods Exosomes were detected using transmission electron microscopy (TEM). Protein levels were determined by Western blot assay. The expression of circ_IFT80, microRNA-296-5p (miR-296-5p) and musashi1 (MSI1) was measured by quantitative real-time polymerase chain reaction (qRT-PCR). Cell cycle distribution, cell apoptosis, and cell proliferation were detected by flow cytometry and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, respectively. Colony formation assay was used to determine the radiosensitivity of cells. The interaction between miR-296-5p and circ_IFT80 or MSI1 was verified by dual-luciferase reporter assay. A xenograft tumor model was established to explore the role of exosomal circ_IFT80 in vivo. Results Circ_IFT80 was upregulated in exosomes derived from CRC patient serum and CRC cells. Exosomal circ_IFT80 or circ_IFT80 overexpression facilitated tumorigenesis by increasing cell proliferation and reducing apoptosis, and inhibited radiosensitivity via promoting colony formation and inhibiting apoptosis. Additionally, circ_IFT80 acted as a sponge of miR-296-5p, and miR-296-5p reversed the effects of circ_IFT80 on tumorigenesis and radiosensitivity. Moreover, MSI1 was a direct target of miR-296-5p. Furthermore, miR-296-5p overexpression inhibited tumorigenesis and promoted radiosensitivity by downregulating MSI1. Exosomal circ_IFT80 also accelerated tumor growth in vivo. Conclusion Exosomal circ_IFT80 promoted tumorigenesis and reduced radiosensitivity by regulating miR-296-5p/MSI1 axis, which might provide a novel avenue for treatment of CRC.
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Affiliation(s)
- Liang Li
- Department of Digestive Medicine Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, People's Republic of China
| | - Zhipeng Jiang
- Department of Gastrointestinal Surgery, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Xiangcai Zou
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Tengfei Hao
- Department of Digestive Medicine Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, People's Republic of China
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14
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Du L, Cheng Q, Zheng H, Liu J, Liu L, Chen Q. Targeting stemness of cancer stem cells to fight colorectal cancers. Semin Cancer Biol 2021; 82:150-161. [PMID: 33631296 DOI: 10.1016/j.semcancer.2021.02.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 01/12/2021] [Accepted: 02/19/2021] [Indexed: 02/07/2023]
Abstract
Cancer initiating/ stem cells (CSCs) undergo self-renewal and differentiation that contributes to tumor initiation, recurrence and metastasis in colorectal cancer (CRC). Targeting of colorectal cancer stem cells (CCSCs) holds significant promise in eradicating cancer cells and ultimately curing patients with cancer. In this review, we will introduce the current progress of CCSC studies, including the specific surface markers of CCSCs, the intrinsic signaling pathways that regulate the stemness and differentiation characteristics of CCSCs, and the tumor organoid model for CCSC research. We will focus on how these studies will lead to the progress in targeting specific surface markers or signaling pathways on CCSCs by monoclonal antibodies, or by natural or synthetic compounds, or by immunotherapy. As CSCs are highly heterogeneous and plastic, we suggest that combinatory approaches that target the stemness network may represent an important strategy for eradicating cancers.
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Affiliation(s)
- Lei Du
- The State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine. Beijing, 100101, China.
| | - Qi Cheng
- The State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China; The Graduate University of Chinese Academy of Sciences. Beijing, 100049, China
| | - Hao Zheng
- The State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China; The State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Jinming Liu
- The State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Lei Liu
- The State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine. Beijing, 100101, China
| | - Quan Chen
- The State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, 300071, China.
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15
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Yang C, Nan B, Ye H, Yan H, Wang M, Yuan Y. MiR-193b-5p protects BRL-3A cells from acrylamide-induced cell cycle arrest by targeting FoxO3. Food Chem Toxicol 2021; 150:112059. [PMID: 33582169 DOI: 10.1016/j.fct.2021.112059] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 01/16/2021] [Accepted: 02/08/2021] [Indexed: 12/25/2022]
Abstract
Acrylamide (AA), an important by-product of the Maillard reaction, has been reported to be genotoxic and carcinogenic. The present study employed miRNAs to investigate the toxic mechanism of AA and their role against AA toxicity. Deep sequencing of small RNA libraries was performed and miR-193b-5p was applied for further study. AA significantly reduced the level of miR-193b-5p and its ectopic expression promoted cell cycle G1/S transition and cell proliferation by upregulating the cyclin-dependent kinase regulator Cyclin D1 and downregulating the cyclin-dependent kinase inhibitor p21, while miR-193b-5p inhibitor led to the opposite results. Dual luciferase assay demonstrated miR-193b-5p regulated the expression of FoxO3 by directly targeting the FoxO3 3'-untranslated region (3'-UTR). Knockdown of FoxO3 induced cell cycle G1/S transition and cell proliferation, which was suppressed by the inhibition of miR-193b-5p but promoted by miR-193b-5p mimics. MiR-193b-5p inhibitor strengthened the effect of FoxO3, contrary to the effect of miR-193b-5p mimics. In conclusion, miR-193b-5p acted as a regulator of cell cycle G1/S transition and cell proliferation by targeting FoxO3 to mediate the expression of p21 and Cyclin D1.
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Affiliation(s)
- Chaoyue Yang
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Bo Nan
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Haiqing Ye
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Haiyang Yan
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Minghua Wang
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Yuan Yuan
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China.
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Bitaraf A, Razmara E, Bakhshinejad B, Yousefi H, Vatanmakanian M, Garshasbi M, Cho WC, Babashah S. The oncogenic and tumor suppressive roles of RNA-binding proteins in human cancers. J Cell Physiol 2021; 236:6200-6224. [PMID: 33559213 DOI: 10.1002/jcp.30311] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 01/14/2021] [Accepted: 01/22/2021] [Indexed: 12/17/2022]
Abstract
Posttranscriptional regulation is a mechanism for the cells to control gene regulation at the RNA level. In this process, RNA-binding proteins (RBPs) play central roles and orchestrate the function of RNA molecules in multiple steps. Accumulating evidence has shown that the aberrant regulation of RBPs makes contributions to the initiation and progression of tumorigenesis via numerous mechanisms such as genetic changes, epigenetic alterations, and noncoding RNA-mediated regulations. In this article, we review the effects caused by RBPs and their functional diversity in the malignant transformation of cancer cells that occurs through the involvement of these proteins in various stages of RNA regulation including alternative splicing, stability, polyadenylation, localization, and translation. Besides this, we review the various interactions between RBPs and other crucial posttranscriptional regulators such as microRNAs and long noncoding RNAs in the pathogenesis of cancer. Finally, we discuss the potential approaches for targeting RBPs in human cancers.
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Affiliation(s)
- Amirreza Bitaraf
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Ehsan Razmara
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Babak Bakhshinejad
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Hassan Yousefi
- Department of Biochemistry and Molecular Biology, LSUHSC School of Medicine, New Orleans, Louisiana, USA
| | - Mousa Vatanmakanian
- Department of Biochemistry and Molecular Biology, LSUHSC School of Medicine, New Orleans, Louisiana, USA
| | - Masoud Garshasbi
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong
| | - Sadegh Babashah
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
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17
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Angius A, Scanu AM, Arru C, Muroni MR, Rallo V, Deiana G, Ninniri MC, Carru C, Porcu A, Pira G, Uva P, Cossu-Rocca P, De Miglio MR. Portrait of Cancer Stem Cells on Colorectal Cancer: Molecular Biomarkers, Signaling Pathways and miRNAome. Int J Mol Sci 2021; 22:1603. [PMID: 33562604 PMCID: PMC7915330 DOI: 10.3390/ijms22041603] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/02/2021] [Accepted: 02/02/2021] [Indexed: 12/24/2022] Open
Abstract
Colorectal cancer (CRC) is a leading cause of cancer death worldwide, and about 20% is metastatic at diagnosis and untreatable. Increasing evidence suggests that the heterogeneous nature of CRC is related to colorectal cancer stem cells (CCSCs), a small cells population with stemness behaviors and responsible for tumor progression, recurrence, and therapy resistance. Growing knowledge of stem cells (SCs) biology has rapidly improved uncovering the molecular mechanisms and possible crosstalk/feedback loops between signaling pathways that directly influence intestinal homeostasis and tumorigenesis. The generation of CCSCs is probably connected to genetic changes in members of signaling pathways, which control self-renewal and pluripotency in SCs and then establish function and phenotype of CCSCs. Particularly, various deregulated CCSC-related miRNAs have been reported to modulate stemness features, controlling CCSCs functions such as regulation of cell cycle genes expression, epithelial-mesenchymal transition, metastasization, and drug-resistance mechanisms. Primarily, CCSC-related miRNAs work by regulating mainly signal pathways known to be involved in CCSCs biology. This review intends to summarize the epigenetic findings linked to miRNAome in the maintenance and regulation of CCSCs, including their relationships with different signaling pathways, which should help to identify specific diagnostic, prognostic, and predictive biomarkers for CRC, but also develop innovative CCSCs-targeted therapies.
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Affiliation(s)
- Andrea Angius
- Institute of Genetic and Biomedical Research (IRGB), CNR, Cittadella Universitaria di Cagliari, 09042 Monserrato, Italy;
| | - Antonio Mario Scanu
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4, 07100 Sassari, Italy; (A.M.S.); (M.R.M.); (G.D.); (M.C.N.); (A.P.); (P.C.-R.)
| | - Caterina Arru
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy; (C.A.); (C.C.); (G.P.)
| | - Maria Rosaria Muroni
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4, 07100 Sassari, Italy; (A.M.S.); (M.R.M.); (G.D.); (M.C.N.); (A.P.); (P.C.-R.)
| | - Vincenzo Rallo
- Institute of Genetic and Biomedical Research (IRGB), CNR, Cittadella Universitaria di Cagliari, 09042 Monserrato, Italy;
| | - Giulia Deiana
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4, 07100 Sassari, Italy; (A.M.S.); (M.R.M.); (G.D.); (M.C.N.); (A.P.); (P.C.-R.)
| | - Maria Chiara Ninniri
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4, 07100 Sassari, Italy; (A.M.S.); (M.R.M.); (G.D.); (M.C.N.); (A.P.); (P.C.-R.)
| | - Ciriaco Carru
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy; (C.A.); (C.C.); (G.P.)
| | - Alberto Porcu
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4, 07100 Sassari, Italy; (A.M.S.); (M.R.M.); (G.D.); (M.C.N.); (A.P.); (P.C.-R.)
| | - Giovanna Pira
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy; (C.A.); (C.C.); (G.P.)
| | - Paolo Uva
- IRCCS G. Gaslini, 16147 Genoa, Italy;
| | - Paolo Cossu-Rocca
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4, 07100 Sassari, Italy; (A.M.S.); (M.R.M.); (G.D.); (M.C.N.); (A.P.); (P.C.-R.)
- Department of Diagnostic Services, “Giovanni Paolo II” Hospital, ASSL Olbia-ATS Sardegna, 07026 Olbia, Italy
| | - Maria Rosaria De Miglio
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Via P. Manzella, 4, 07100 Sassari, Italy; (A.M.S.); (M.R.M.); (G.D.); (M.C.N.); (A.P.); (P.C.-R.)
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Wang J, Wang Z, Yuan J, Wang Q, Shen X. Upregulation of miR-137 Expression Suppresses Tumor Growth and Progression via Interacting with DNMT3a Through Inhibiting the PTEN/Akt Signaling in HCC. Onco Targets Ther 2021; 14:165-176. [PMID: 33447058 PMCID: PMC7802901 DOI: 10.2147/ott.s268570] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 11/27/2020] [Indexed: 01/05/2023] Open
Abstract
Background Downregulation of miR-137 regulates tumor growth in hepatocellular carcinoma (HCC). Yet, the underlying molecular mechanisms stay unclear. Materials and Methods miR-137 and DNA methyltransferase 3a (DNMT3a) expression levels were detected by Western blot, immunohistochemistry and qRT-PCR assays. Luciferase reporter and Western blot assays were also carried out to explore the correlation of miR-137 and DNMT3a. Flow cytometry assay, MTT analysis, transwell and wound healing assay were used to evaluate cell apoptosis, proliferation, as well as invasive and migratory abilities. Western blot was used to examine the caspase-3, cleaved caspase-3, PCNA, MMP-2, and MMP-7 protein levels, as well as PTEN/Akt signaling alternations. Methylation-specific PCR was applied to detect the PTEN promoter methylation status. Xenograft tumor assay, Western blot and immunohistochemistry analyses were taken to confirm the miR-137 regulation in vivo. Results Downregulation of miR-137, upregulation of DNMT3a, as well as an inverse correlation between them were observed in HCC clinical samples and cells. Moreover, miR-137 targeted directly and inhibited DNMT3a in HCC cells, which further retarded cell proliferative, migratory and invasive capabilities, while promoted apoptotic ones. Additionally, miR-137 overexpression inactivated the PTEN/Akt pathway in HCC cell by decreasing DNMT3a expression. Furthermore, miR-137 overexpression inhibited tumor growth in vivo in HCC via interacting with DNMT3a through inhibiting the PTEN/Akt cascades. Conclusion Our findings suggested that miR-137 inhibited HCC tumor growth and progression via interacting with DNMT3a and suppressing the PTEN/Akt signaling in vitro and in vivo.
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Affiliation(s)
- Jiachen Wang
- Department of Minimally Invasive Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China
| | - Zhao Wang
- Department of Minimally Invasive Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China
| | - Jiaxiang Yuan
- Department of Minimally Invasive Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China
| | - Qun Wang
- Department of Minimally Invasive Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China
| | - Xinsheng Shen
- Department of Minimally Invasive Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China
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Gao J, Dai C, Yu X, Yin XB, Zhou F. Long noncoding RNA LEF1-AS1 acts as a microRNA-10a-5p regulator to enhance MSI1 expression and promote chemoresistance in hepatocellular carcinoma cells through activating AKT signaling pathway. J Cell Biochem 2020; 122:86-99. [PMID: 32786108 DOI: 10.1002/jcb.29833] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 12/24/2019] [Accepted: 01/10/2020] [Indexed: 12/31/2022]
Abstract
Long noncoding RNAs (lncRNAs) contribute to the development of hepatocellular carcinoma (HCC), which could regulate various HCC biological characteristics. Here, the study seeks to investigate the role of lncRNA LEF1-AS1 in HCC cell chemoresistance by regulating microRNA (miR)-10a-5p and Musashi1 (MSI1). The microarray-based analysis was employed to identify the HCC-related lncRNA-miRNA-gene regulatory network. Expression patterns of LEF1-AS1, miR-10a-5p, and MSI1 in the HCC cell lines, tissues were accessed by means of reverse transcription-quantitative polymerase chain reaction. Next, the interaction among LEF1-AS1, miR-10a-5p, and MSI1 in HCC was accessed by bioinformatics and dual-luciferase reporter gene assay. Then, the cell line resistant to cisplatin was established, which was then treated with sh/oe-lncRNA LEF1-AS1, miR-10a-5p-mimic, and oe/sh-MSI1 vectors alone or in combination. Afterward, the effect of LEF1-AS1, miR-10a-5p, and MSI1 on HCC cell chemoresistance, proliferation, and apoptosis was assessed. At last, in vivo experiments confirmed the role of MSI1 in tumor growth and chemoresistance in HCC. LEF1-AS1 might potentially affect the growth and chemoresistance of HCC cells by regulating miR-10a-5p and MSI1. LEF1-AS1 and MSI1 expression patterns were elevated, while miR-10a-5p was repressed in HCC tissues and cell lines. LEF1-AS1 combined to miR-10a-5p and regulated MSI1, thereby activating the protein kinase B (AKT) signaling pathway. Knockdown of LEF1-AS1 and MSI1 or elevation of miR-10a-5p compromised the proliferation of Huh7 cell line resistant to DDP and promoted its chemosensitivity and apoptosis. At last, these in vitro findings were also confirmed in vivo. Our results unraveled LEF1-AS1 acts as a miR-10a-5p modulator to promote chemoresistance of HCC cells by stimulating MSI1 and activating the AKT signaling pathway, which might provide a novel therapeutic target for HCC.
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Affiliation(s)
- Jun Gao
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Chao Dai
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xin Yu
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiang-Bao Yin
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Fan Zhou
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
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miR-137: A Novel Therapeutic Target for Human Glioma. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 21:614-622. [PMID: 32736290 PMCID: PMC7393316 DOI: 10.1016/j.omtn.2020.06.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/18/2020] [Accepted: 06/26/2020] [Indexed: 12/14/2022]
Abstract
MicroRNA (miR)-137 is highly expressed in the brain and plays a crucial role in the development and prognosis of glioma. In this review, we aim to summarize the latest findings regarding miR-137 in glioma cell apoptosis, proliferation, migration, invasion, angiogenesis, drug resistance, and cancer treatment. In addition, we focus on the identified miR-137 targets and pathways in the occurrence and development of glioma. Finally, future implications for the diagnostic and therapeutic potential of miR-137 in glioma were discussed.
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21
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Forouzanfar M, Lachinani L, Dormiani K, Nasr-Esfahani MH, Gure AO, Ghaedi K. Intracellular functions of RNA-binding protein, Musashi1, in stem and cancer cells. Stem Cell Res Ther 2020; 11:193. [PMID: 32448364 PMCID: PMC7245930 DOI: 10.1186/s13287-020-01703-w] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 03/31/2020] [Accepted: 05/05/2020] [Indexed: 12/13/2022] Open
Abstract
RNA-binding protein, musashi1 (MSI1), is a main protein in asymmetric cell division of the sensory organ precursor cells, whereas its expression is reported to be upregulated in cancers. This protein is a critical element in proliferation of stem and cancer stem cells, which acts through Wnt and Notch signaling pathways. Moreover, MSI1 modulates malignancy and chemoresistance of lung cancer cells via activating the Akt signaling. Due to the main role of MSI1 in metastasis and cancer development, MSI1 would be an appropriate candidate for cancer therapy. Downregulation of MSI1 inhibits proliferation of cancer stem cells and reduces the growth of solid tumors in several cancers. On the other hand, MSI1 expression is regulated by microRNAs in such a way that several different tumor suppressor miRNAs negatively regulate oncogenic MSI1 and inhibit migration and tumor metastasis. The aim of this review is summarizing the role of MSI1 in stem cell proliferation and cancer promotion.
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Affiliation(s)
- Mahboobeh Forouzanfar
- Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Hezar Jerib Ave., Azadi Square, Isfahan, P.O. Code 81746, Iran
| | - Liana Lachinani
- Department of Molecular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, P.O. Code 816513-1378, Iran
| | - Kianoush Dormiani
- Department of Molecular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, P.O. Code 816513-1378, Iran.
| | - Mohammad Hossein Nasr-Esfahani
- Department of Molecular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, P.O. Code 816513-1378, Iran. .,Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran.
| | - Ali Osmay Gure
- Department of Molecular Biology and Genetics, Faculty of Science, Bilkent University, Ankara, Turkey
| | - Kamran Ghaedi
- Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Hezar Jerib Ave., Azadi Square, Isfahan, P.O. Code 81746, Iran. .,Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran.
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22
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Wang C, Zhuang X, Xu J, Dai Z, Wu W, Zhang C, Lin S, Chen S, Lin H, Tang W. Variants of MIR137HG Genes are Associated with Liver Cancer Risk in Chinese Li Population. Onco Targets Ther 2020; 13:1809-1818. [PMID: 32184616 PMCID: PMC7053808 DOI: 10.2147/ott.s225669] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 02/11/2020] [Indexed: 12/20/2022] Open
Abstract
Background Liver cancer (LC) is the sixth most common cancer and the second leading cause of cancer mortality worldwide, and its incidence rate is high in China. Methods In this study, we aimed to investigate the contribution of MIR137HG (MIR137 Host Gene) polymorphisms to LC risk in a case–control study with 432 LC patients and 430 healthy controls. A logistic recession model was used to evaluate the effects of candidate single nucleotide polymorphisms (SNPs) on LC risk. HaploReg v 4.1 database was conducted to predict the potential functionality of SNPs. Results The results revealed that rs17371457 and rs7554283 in the MIR137HG gene were correlated with an enhanced LC risk under the allele (P = 0.001 and P = 0.043, respectively) and genetic models (P < 0.05). When the sample was stratified by gender and age, statistically significant associations were found. Rs9440302, rs17371457 and rs7554283 were associated with an increased the risk of LC among individuals aged >55 years (P < 0.05); rs17371457 was related to higher LC risk in males (P < 0.05). Similarly, the haplotype AG constituted by rs12333983 and rs3735451 significantly increased LC risk in Chinese Li population (P = 0.043). Six SNPs distributed in MIR137HG were successfully predicted as regulatory SNPs with different biological functions. Conclusion Our research firstly showed that MIR137HG gene polymorphisms were implicated in LC susceptibility among Chinese Li population.
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Affiliation(s)
- Chaoying Wang
- Department of Medical Oncology, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, 570311, People's Republic of China
| | - Xiaohong Zhuang
- Department of Medical Oncology, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, 570311, People's Republic of China
| | - Junnv Xu
- Department of Medical Oncology, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, 570311, People's Republic of China.,Hainan Medical University, Haikou, Hainan 571199, People's Republic of China
| | - Zhisheng Dai
- Department of Medical Oncology, The Second People's Hospital of Hainan Province, Wuzhishan, Hainan 572200, People's Republic of China
| | - Weixiong Wu
- Intensive Care Medicine 1 District, The Second Affiliated Hospital of Hainan Medical College, Haikou, Hainan 570311, People's Republic of China
| | - Chengsheng Zhang
- Department of Medical Oncology, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, 570311, People's Republic of China
| | - Shu Lin
- Department of Medical Oncology, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, 570311, People's Republic of China
| | - Sehong Chen
- Department of Medical Oncology, The Second People's Hospital of Hainan Province, Wuzhishan, Hainan 572200, People's Republic of China
| | - Haifeng Lin
- Department of Medical Oncology, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, 570311, People's Republic of China
| | - Wenjun Tang
- Department of Medical Oncology, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, 570311, People's Republic of China
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The Differential DNA Hypermethylation Patterns of microRNA-137 and microRNA-342 Locus in Early Colorectal Lesions and Tumours. Biomolecules 2019; 9:biom9100519. [PMID: 31546665 PMCID: PMC6843302 DOI: 10.3390/biom9100519] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/01/2019] [Accepted: 09/18/2019] [Indexed: 12/18/2022] Open
Abstract
Colorectal cancer (CRC) is the third most commonly diagnosed cancer worldwide, representing 13% of all cancers. The role of epigenetics in cancer diagnosis and prognosis is well established. MicroRNAs in particular influence numerous cancer associated processes including apoptosis, proliferation, differentiation, cell-cycle controls, migration/invasion and metabolism. MiRNAs-137 and 342 are exon- and intron-embedded, respectively, acting as tumour-suppressive microRNA via hypermethylation events. Levels of miRNAs 137 and 342 have been investigated here as potential prognostic markers for colorectal cancer patients. The methylation status of miRNA-137 and miRNA-342 was evaluated using methylation-specific (MSP) polymerase chain reaction (PCR) on freshly frozen tissue derived from 51 polyps, 8 tumours and 14 normal colon mucosa specimens. Methylation status of miRNA-137 and miRNA-342 was significantly higher in tumour lesions compared to normal adjacent mucosa. Surprisingly, the methylation frequency of miR-342 (76.3%) among colorectal cancer patients was significantly higher compared to miR-137 (18.6%). Furthermore, normal tissues, adjacent to the lesions (N-Cs), displayed no observable methylation for miRNA-137, whereas 27.2% of these N-Cs showed miRNA-342 hypermethylation. MiRNA-137 hypermethylation was significantly higher in male patients and miR-342 hypermethylation correlated with patient age. Methylation status of miRNA-137 and miRNA-342 has both diagnostic and prognostic value in CRC prediction and prevention.
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24
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Kang Z, Jifu E, Guo K, Ma X, Zhang Y, Yu E. Knockdown of long non-coding RNA TINCR decreases radioresistance in colorectal cancer cells. Pathol Res Pract 2019; 215:152622. [PMID: 31540772 DOI: 10.1016/j.prp.2019.152622] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 08/21/2019] [Accepted: 09/01/2019] [Indexed: 12/13/2022]
Abstract
An increasing number of studies have revealed the role of long non-coding RNAs in cancer. However, the mechanisms of action and functional utility in colorectal cancer (CRC) have not been fully elucidated. Here we describe the functional role and potential mechanism of TINCR (terminal differentiation-induced non-coding RNA) in CRC. Firstly, TINCR was selected using sequencing analyses and the starBase database. Cell Counting Kit-8, scratch wound healing, and transwell assays revealed that TINCR inhibited proliferation and migration in SW620 and HTC116 cells. Intriguingly, TINCR expression was up-regulated in a radioresistant CRC cell line (SW620R). Although TINCR had no significant effects on SW620R cell proliferation or migration, knockdown of TINCR reduced the radioresistance, and its overexpression had opposite effects. We then focused on transcription factor 4 (TCF4) as it is downregulated in CRC and associated with increased stemness in tumors. We found that TINCR and TCF4 levels were positively related in SW620R cells. TINCR knockdown reduced sphere formation ability in SW620R cells. TINCR also suppressed the OCT4 and SOX2 stemness genes, despite having no effect on NANOG. The expression levels of these genes were substantially higher in SW620R than in SW620 cells. To further explore the mechanism of TINCR and radioresistance, miR-137 was analyzed as it targets TCF4. We firstly confirmed that TCF4 is a target of miR-137. We then identified that TINCR knockdown enhanced miR-137 expression in SW620R cells. Collectively, these findings suggest that TINCR knockdown inhibits TCF4 by regulating miR-137 expression.
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Affiliation(s)
- Zhengchun Kang
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - E Jifu
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Kai Guo
- Department of Gastroenterology, The 161th Hospital of PLA, Wuhan, Hubei, 430010, China
| | - Xiuzhu Ma
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Yingyi Zhang
- Department of Oncology, Changhai Hospital, Naval Medical University, Shanghai, 200433, China.
| | - Enda Yu
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China.
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25
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García-Cárdenas JM, Guerrero S, López-Cortés A, Armendáriz-Castillo I, Guevara-Ramírez P, Pérez-Villa A, Yumiceba V, Zambrano AK, Leone PE, Paz-y-Miño C. Post-transcriptional Regulation of Colorectal Cancer: A Focus on RNA-Binding Proteins. Front Mol Biosci 2019; 6:65. [PMID: 31440515 PMCID: PMC6693420 DOI: 10.3389/fmolb.2019.00065] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 07/23/2019] [Indexed: 12/24/2022] Open
Abstract
Colorectal cancer (CRC) is a major health problem with an estimated 1. 8 million new cases worldwide. To date, most CRC studies have focused on DNA-related aberrations, leaving post-transcriptional processes under-studied. However, post-transcriptional alterations have been shown to play a significant part in the maintenance of cancer features. RNA binding proteins (RBPs) are uprising as critical regulators of every cancer hallmark, yet little is known regarding the underlying mechanisms and key downstream oncogenic targets. Currently, more than a thousand RBPs have been discovered in humans and only a few have been implicated in the carcinogenic process and even much less in CRC. Identification of cancer-related RBPs is of great interest to better understand CRC biology and potentially unveil new targets for cancer therapy and prognostic biomarkers. In this work, we reviewed all RBPs which have a role in CRC, including their control by microRNAs, xenograft studies and their clinical implications.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - César Paz-y-Miño
- Facultad de Ciencias de la Salud Eugenio Espejo, Centro de Investigación Genética y Genómica, Universidad UTE, Quito, Ecuador
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26
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Cragle CE, MacNicol MC, Byrum SD, Hardy LL, Mackintosh SG, Richardson WA, Gray NK, Childs GV, Tackett AJ, MacNicol AM. Musashi interaction with poly(A)-binding protein is required for activation of target mRNA translation. J Biol Chem 2019; 294:10969-10986. [PMID: 31152063 PMCID: PMC6635449 DOI: 10.1074/jbc.ra119.007220] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 05/09/2019] [Indexed: 12/21/2022] Open
Abstract
The Musashi family of mRNA translational regulators controls both physiological and pathological stem cell self-renewal primarily by repressing target mRNAs that promote differentiation. In response to differentiation cues, Musashi can switch from a repressor to an activator of target mRNA translation. However, the molecular events that distinguish Musashi-mediated translational activation from repression are not understood. We have previously reported that Musashi function is required for the maturation of Xenopus oocytes and specifically for translational activation of specific dormant maternal mRNAs. Here, we employed MS to identify cellular factors necessary for Musashi-dependent mRNA translational activation. We report that Musashi1 needs to associate with the embryonic poly(A)-binding protein (ePABP) or the canonical somatic cell poly(A)-binding protein PABPC1 for activation of Musashi target mRNA translation. Co-immunoprecipitation studies demonstrated an increased Musashi1 interaction with ePABP during oocyte maturation. Attenuation of endogenous ePABP activity severely compromised Musashi function, preventing downstream signaling and blocking oocyte maturation. Ectopic expression of either ePABP or PABPC1 restored Musashi-dependent mRNA translational activation and maturation of ePABP-attenuated oocytes. Consistent with these Xenopus findings, PABPC1 remained associated with Musashi under conditions of Musashi target mRNA de-repression and translation during mammalian stem cell differentiation. Because association of Musashi1 with poly(A)-binding proteins has previously been implicated only in repression of Musashi target mRNAs, our findings reveal novel context-dependent roles for the interaction of Musashi with poly(A)-binding protein family members in response to extracellular cues that control cell fate.
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Affiliation(s)
- Chad E Cragle
- Department of Neurobiology and Developmental Sciences
| | - Melanie C MacNicol
- Department of Neurobiology and Developmental Sciences,; Center for Translational Neuroscience
| | - Stephanie D Byrum
- Department of Biochemistry and Molecular Biology,; Arkansas Children's Research Institute
| | - Linda L Hardy
- Department of Neurobiology and Developmental Sciences
| | | | - William A Richardson
- MRC Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - Nicola K Gray
- MRC Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - Gwen V Childs
- Department of Neurobiology and Developmental Sciences,; Center for Translational Neuroscience
| | - Alan J Tackett
- Department of Biochemistry and Molecular Biology,; Arkansas Children's Research Institute
| | - Angus M MacNicol
- Department of Neurobiology and Developmental Sciences,; Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205 and.
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27
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MiR-137 suppresses migration and invasion by targeting EZH2-STAT3 signaling in human hepatocellular carcinoma. Pathol Res Pract 2018; 214:1980-1986. [DOI: 10.1016/j.prp.2018.08.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 07/26/2018] [Accepted: 08/06/2018] [Indexed: 02/07/2023]
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MiR-199a mediated the dissemination of human mantle cell lymphoma by interacting with the CCR7/CCL21 pair. Anticancer Drugs 2018; 29:861-870. [DOI: 10.1097/cad.0000000000000656] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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29
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Li J, Smith AR, Marquez RT, Li J, Li K, Lan L, Wu X, Zhao L, Ren F, Wang Y, Wang Y, Jia B, Xu L, Chang Z. MicroRNA-383 acts as a tumor suppressor in colorectal cancer by modulating CREPT/RPRD1B expression. Mol Carcinog 2018; 57:1408-1420. [PMID: 29938829 PMCID: PMC6324535 DOI: 10.1002/mc.22866] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 06/19/2018] [Accepted: 06/21/2018] [Indexed: 12/21/2022]
Abstract
CREPT (Cell-cycle-related and expression-elevated protein in tumor)/RPRD1B, a novel protein that enhances the transcription of Cyclin D1 to promote cell proliferation during tumorigenesis, was demonstrated highly expressed in most of tumors. However, it remains unclear how CREPT is regulated in colorectal cancers. In this study, we report that miR-383 negatively regulates CREPT expression. We observed that CREPT was up-regulated but the expression of miR-383 was down regulated in both colon cancer cell lines and colon tumor tissues. Intriguingly, we found that enforced expression of miR-383 inhibited the expression of CREPT at both the mRNA and protein level. Using a luciferase reporter, we showed that miR-383 targeted the 3'-UTR of CREPT mRNA directly. Consistently we observed that over expression of miR-383 shortened the half-life of CREPT mRNA in varieties of colorectal cancer cells. Furthermore, restoration of miR-383 inhibited cell growth and colony formation of colon cancer cells accompanied by inhibition of expression of CREPT and related downstream genes. Finally, we demonstrated that stable over expression of miR-383 in colon cancer cells decreased the growth of the tumors. Our results revealed that the abundant expression of CREPT in colorectal cancers is attributed to the decreased level of miR-383. This study shed a new light on the potential therapeutic therapy strategy for colorectal cancers using introduced miRNA.
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Affiliation(s)
- Jian Li
- School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, Hebei Province, China
| | - Amber R. Smith
- Department of Molecular Biosciences, University of Kansas, Lawrence, Kansas
| | - Rebecca T. Marquez
- Department of Molecular Biosciences, University of Kansas, Lawrence, Kansas
| | - Jun Li
- Institute of Immunology, Medical School, Third Military Medical University, Chongqing, China
| | - Kun Li
- School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, Hebei Province, China
| | - Lan Lan
- Department of Molecular Biosciences, University of Kansas, Lawrence, Kansas
| | - Xiaoqing Wu
- Department of Molecular Biosciences, University of Kansas, Lawrence, Kansas
| | - Linxi Zhao
- State Key Laboratory of Membrane Biology, School of Medicine, National Engineering Laboratory for anti-tumor Therapeutics, Tsinghua University, Beijing, China
- Department of Psychological Sciences, Purdue University, West Lafayette, Indiana
| | - Fangli Ren
- State Key Laboratory of Membrane Biology, School of Medicine, National Engineering Laboratory for anti-tumor Therapeutics, Tsinghua University, Beijing, China
| | - Yi Wang
- State Key Laboratory of Membrane Biology, School of Medicine, National Engineering Laboratory for anti-tumor Therapeutics, Tsinghua University, Beijing, China
| | - Yinyin Wang
- State Key Laboratory of Membrane Biology, School of Medicine, National Engineering Laboratory for anti-tumor Therapeutics, Tsinghua University, Beijing, China
| | - Baoqing Jia
- Department of General Surgery and Pathology, Chinese PLA General Hospital, Beijing, China
| | - Liang Xu
- Department of Molecular Biosciences, University of Kansas, Lawrence, Kansas
| | - Zhijie Chang
- State Key Laboratory of Membrane Biology, School of Medicine, National Engineering Laboratory for anti-tumor Therapeutics, Tsinghua University, Beijing, China
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De Robertis M, Poeta ML, Signori E, Fazio VM. Current understanding and clinical utility of miRNAs regulation of colon cancer stem cells. Semin Cancer Biol 2018; 53:232-247. [PMID: 30130662 DOI: 10.1016/j.semcancer.2018.08.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 08/10/2018] [Accepted: 08/17/2018] [Indexed: 02/07/2023]
Abstract
Cancer stem cells (CSCs) in colorectal tumorigenesis are suggested to be responsible for initiation, development and propagation of colorectal cancer (CRC) and have been extensively characterized by the expression of phenotypic determinants, such as surface or intracellular proteins. The generation of CSCs is likely due to a dysregulation of the signaling pathways that principally control self-renewal and pluripotency in normal intestinal stem cells (ISCs) through different (epi)genetic changes that define cell fate, identity, and phenotype of CSCs. These aspects are currently under intense investigation. In the framework of the oncogenic signaling pathways controlled by microRNAs (miRNAs) during CRC development, a plethora of data suggests that miRNAs can play a key role in several regulatory pathways involving CSCs biology, epithelial-mesenchymal transition (EMT), angiogenesis, metastatization, and pharmacoresistance. This review examines the most relevant evidences about the role of miRNAs in the etiology of CRC, through the regulation of colon CSCs and the principal differences between colorectal CSCs and benign stem cells. In this perspective, the utility of the principal CSCs-related miRNAs changes is explored, emphasizing their use as potential biomarkers to aid in diagnosis, prognosis and predicting response to therapy in CRC patients, but also as promising targets for more effective and personalized anti-CRC treatments.
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Affiliation(s)
- Mariangela De Robertis
- Department of Biosciences, Biotechnology and Biopharmaceutics, University of Bari "A. Moro", Via Orabona 4, 70126 Bari, Italy; Laboratory of Molecular Medicine and Biotechnology, University Campus Bio-Medico of Rome, Via Alvaro del Portillo 21, 00128 Rome, Italy; Laboratory of Molecular Pathology and Experimental Oncology, Institute of Translational Pharmacology, Consiglio Nazionale delle Ricerche (CNR), Via Fosso del Cavaliere 100, 00133 Rome, Italy.
| | - Maria Luana Poeta
- Department of Biosciences, Biotechnology and Biopharmaceutics, University of Bari "A. Moro", Via Orabona 4, 70126 Bari, Italy
| | - Emanuela Signori
- Laboratory of Molecular Medicine and Biotechnology, University Campus Bio-Medico of Rome, Via Alvaro del Portillo 21, 00128 Rome, Italy; Laboratory of Molecular Pathology and Experimental Oncology, Institute of Translational Pharmacology, Consiglio Nazionale delle Ricerche (CNR), Via Fosso del Cavaliere 100, 00133 Rome, Italy.
| | - Vito Michele Fazio
- Laboratory of Molecular Medicine and Biotechnology, University Campus Bio-Medico of Rome, Via Alvaro del Portillo 21, 00128 Rome, Italy; IRCCS "Casa Sollievo della Sofferenza", viale dei Cappuccini, 71013 San Giovanni Rotondo (FG), Italy
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31
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Lan L, Liu H, Smith AR, Appelman C, Yu J, Larsen S, Marquez RT, Wu X, Liu FY, Gao P, Gowthaman R, Karanicolas J, De Guzman RN, Rogers S, Aubé J, Neufeld KL, Xu L. Natural product derivative Gossypolone inhibits Musashi family of RNA-binding proteins. BMC Cancer 2018; 18:809. [PMID: 30097032 PMCID: PMC6086024 DOI: 10.1186/s12885-018-4704-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 07/30/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The Musashi (MSI) family of RNA-binding proteins is best known for the role in post-transcriptional regulation of target mRNAs. Elevated MSI1 levels in a variety of human cancer are associated with up-regulation of Notch/Wnt signaling. MSI1 binds to and negatively regulates translation of Numb and APC (adenomatous polyposis coli), negative regulators of Notch and Wnt signaling respectively. METHODS Previously, we have shown that the natural product (-)-gossypol as the first known small molecule inhibitor of MSI1 that down-regulates Notch/Wnt signaling and inhibits tumor xenograft growth in vivo. Using a fluorescence polarization (FP) competition assay, we identified gossypolone (Gn) with a > 20-fold increase in Ki value compared to (-)-gossypol. We validated Gn binding to MSI1 using surface plasmon resonance, nuclear magnetic resonance, and cellular thermal shift assay, and tested the effects of Gn on colon cancer cells and colon cancer DLD-1 xenografts in nude mice. RESULTS In colon cancer cells, Gn reduced Notch/Wnt signaling and induced apoptosis. Compared to (-)-gossypol, the same concentration of Gn is less active in all the cell assays tested. To increase Gn bioavailability, we used PEGylated liposomes in our in vivo studies. Gn-lip via tail vein injection inhibited the growth of human colon cancer DLD-1 xenografts in nude mice, as compared to the untreated control (P < 0.01, n = 10). CONCLUSION Our data suggest that PEGylation improved the bioavailability of Gn as well as achieved tumor-targeted delivery and controlled release of Gn, which enhanced its overall biocompatibility and drug efficacy in vivo. This provides proof of concept for the development of Gn-lip as a molecular therapy for colon cancer with MSI1/MSI2 overexpression.
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Affiliation(s)
- Lan Lan
- Departments of Molecular Biosciences, University of Kansas, 4002 Haworth Hall, 1200 Sunnyside Avenue, Lawrence, KS, 66045-7534, USA
| | - Hao Liu
- Departments of Molecular Biosciences, University of Kansas, 4002 Haworth Hall, 1200 Sunnyside Avenue, Lawrence, KS, 66045-7534, USA
- Current address: School of Pharmacy, Southwest Medical University, Luzhou City, China
| | - Amber R Smith
- Departments of Molecular Biosciences, University of Kansas, 4002 Haworth Hall, 1200 Sunnyside Avenue, Lawrence, KS, 66045-7534, USA
| | - Carl Appelman
- Departments of Molecular Biosciences, University of Kansas, 4002 Haworth Hall, 1200 Sunnyside Avenue, Lawrence, KS, 66045-7534, USA
| | - Jia Yu
- Departments of Molecular Biosciences, University of Kansas, 4002 Haworth Hall, 1200 Sunnyside Avenue, Lawrence, KS, 66045-7534, USA
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, China
| | - Sarah Larsen
- Departments of Molecular Biosciences, University of Kansas, 4002 Haworth Hall, 1200 Sunnyside Avenue, Lawrence, KS, 66045-7534, USA
| | - Rebecca T Marquez
- Departments of Molecular Biosciences, University of Kansas, 4002 Haworth Hall, 1200 Sunnyside Avenue, Lawrence, KS, 66045-7534, USA
| | - Xiaoqing Wu
- Departments of Molecular Biosciences, University of Kansas, 4002 Haworth Hall, 1200 Sunnyside Avenue, Lawrence, KS, 66045-7534, USA
| | - Frank Y Liu
- Departments of Molecular Biosciences, University of Kansas, 4002 Haworth Hall, 1200 Sunnyside Avenue, Lawrence, KS, 66045-7534, USA
| | - Philip Gao
- Protein Production Group, NIH COBRE in Protein Structure and Function, Lawrence, USA
| | - Ragul Gowthaman
- Center for Computational Biology, University of Kansas, Lawrence, Kansas, USA
| | - John Karanicolas
- Program in Molecular Therapeutics, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - Roberto N De Guzman
- Departments of Molecular Biosciences, University of Kansas, 4002 Haworth Hall, 1200 Sunnyside Avenue, Lawrence, KS, 66045-7534, USA
| | - Steven Rogers
- Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA
| | - Jeffrey Aubé
- Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA
| | - Kristi L Neufeld
- Departments of Molecular Biosciences, University of Kansas, 4002 Haworth Hall, 1200 Sunnyside Avenue, Lawrence, KS, 66045-7534, USA
| | - Liang Xu
- Departments of Molecular Biosciences, University of Kansas, 4002 Haworth Hall, 1200 Sunnyside Avenue, Lawrence, KS, 66045-7534, USA.
- Department of Radiation Oncology, University of Kansas Cancer Center, Kansas City, Kansas, USA.
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Kokuda R, Watanabe R, Okuzaki D, Akamatsu H, Oneyama C. MicroRNA-137-mediated Src oncogenic signaling promotes cancer progression. Genes Cells 2018; 23:688-701. [PMID: 29962093 DOI: 10.1111/gtc.12610] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 05/06/2018] [Accepted: 06/06/2018] [Indexed: 01/31/2023]
Abstract
The tyrosine kinase c-Src is frequently overexpressed and activated in a wide variety of human cancers. However, the molecular mechanisms responsible for the upregulation of c-Src remain elusive. To examine whether microRNA-mediated c-Src upregulation promotes cancer progression, we screened miRNAs with complementarity to the 3'-UTR of c-Src mRNA. Among these miRNAs, down-regulation of miR-137 was tightly associated with c-Src-mediated tumor progression of human colon cancer cells/tissues. Re-expression of miR-137 in human colon cancer cells suppressed tumor growth and caused the disruption of focal contacts, suppression of cell adhesion, and invasion, although restoration of c-Src in miR-137-treated cells could not fully rescue the tumor-suppressive effect of miR-137. We found that miR-137 targets AKT2 and paxillin also and miR-137-mediated regulation of c-Src /AKT2 is crucial for controlling tumor growth, whereas that of c-Src/paxillin contributes to malignancy. miR-137 suppressed Src-related oncogenic signaling and changed the expression of miRNAs that are regulated by Src activation. miR-137 controls the expression of c-Src/AKT2/paxillin and synergistically suppresses Src oncogenic signaling evoked from focal adhesions. In various human cancers that harbor c-Src upregulation, the dysfunction of this novel mechanism would serve as a critical trigger for tumor progression.
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Affiliation(s)
- Rie Kokuda
- Department of Oncogene Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Risayo Watanabe
- Division of Cancer Cell Regulation, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Daisuke Okuzaki
- DNA-chip Developmental Center for Infectious Diseases, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | | | - Chitose Oneyama
- Department of Oncogene Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
- Division of Cancer Cell Regulation, Aichi Cancer Center Research Institute, Nagoya, Japan
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33
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Wang L, Liu J, Xu B, Liu YL, Liu Z. Reduced exosome miR-425 and miR-744 in the plasma represents the progression of fibrosis and heart failure. Kaohsiung J Med Sci 2018; 34:626-633. [PMID: 30392569 DOI: 10.1016/j.kjms.2018.05.008] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 05/21/2018] [Accepted: 05/24/2018] [Indexed: 01/06/2023] Open
Abstract
Heart failure creates a leading public health burden worldwide and cardiac fibrosis is a hallmark of pathological cardiac remodeling which was found in HF patients. In this study, we detected the expression of 9 candidate miRNAs in the plasma exosome samples from 31 HF patients, and found the level of miR-21, miR-425 and miR-744 was altered. The downregulation of miR-425 and miR-744 was also found in angiotensin II treated cardiac fibroblasts. Through functional study, we identified that the reduction of miR-425 and miR-744 relates to overexpression of collagen 1 and α-SMA, which result in fibrogenesis of cardiac fibroblasts. Conversely, overexpression of miR-425 or miR-744 in cultured cardiac fibroblasts significantly abrogates angiotensin induced collagen formation and fibrogenesis. Finally, we confirmed that TGFβ1 is a direct target of miR-425 and miR-744 by dual luciferase assay and immunoblotting. Our data demonstrate that miR-425 and miR-744 function as negative regulators of cardiac fibrosis by suppression TGFβ1 expression, and miR-425 and miR-744 level in the plasma exosomes has the potential to be a biomarker to predict cardiac fibrosis and heart failure.
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Affiliation(s)
- Lu Wang
- Department of Critic Care Medicine, Renmin Hospital of Wuhan University, Wuhan, PR China.
| | - Jiao Liu
- Department of Critic Care Medicine, Renmin Hospital of Wuhan University, Wuhan, PR China
| | - Bin Xu
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, PR China
| | - Yu-Lan Liu
- Department of Critic Care Medicine, Renmin Hospital of Wuhan University, Wuhan, PR China
| | - Zhou Liu
- Department of Critic Care Medicine, Renmin Hospital of Wuhan University, Wuhan, PR China
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34
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Ding F, Zhang S, Gao S, Shang J, Li Y, Cui N, Zhao Q. MiR-137 functions as a tumor suppressor in pancreatic cancer by targeting MRGBP. J Cell Biochem 2018; 119:4799-4807. [PMID: 29331027 DOI: 10.1002/jcb.26676] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 01/11/2018] [Indexed: 12/29/2022]
Abstract
miRNAs are small noncoding RNAs that act as critical epigenetic regulators in tumor carcinogenesis. In this study, our data showed that miR-137 was significantly downregulated in 58 pairs of human pancreatic cancer (PanCa) tissues and PanCa cell lines. Furthermore, the deregulated miR-137 was correlated with increased tumor size, higher TNM stage, and worse prognosis in pancreatic cancer. Functional studies demonstrated that overexpression of miR-137 dramatically suppressed cell proliferation and induced cell apoptosis in vitro. Meanwhile, upregulated miR-137 remarkably inhibited migration and invasion of pancreatic cancer cells. Further studies indicated that MRGBP was identified as the direct downstream target gene of miR-137. In addition, MRGBP expression is significantly downregulated in miR-137-transfected cells. Our previous study revealed that silencing of MRGBP suppressed the growth of PanCa cells in vitro and in vivo and also promoted apoptosis, and inhibited migration and invasion of PanCa cells, which are consistent with the effects of miR-137 overexpression. Taken together, our findings suggest that miR-137 may function as a novel tumor promoter through directly targeting MRGBP in PanCa.
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Affiliation(s)
- Feng Ding
- Department of Gastroenterology/Hepatology, ZhongNan Hospital of Wuhan University, Wuhan, China
- The Hubei Clinical Center & Key Laboratory of Intestinal & Colorectal Diseases, Wuhan, China
| | - Shuang Zhang
- Laboratory of Clinical Immunology, Wuhan No.1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shaoyang Gao
- Department of Pathology, Hubei Cancer Hospital, Wuhan, China
| | - Jian Shang
- Department of Gastroenterology/Hepatology, ZhongNan Hospital of Wuhan University, Wuhan, China
- The Hubei Clinical Center & Key Laboratory of Intestinal & Colorectal Diseases, Wuhan, China
| | - Yanxia Li
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ning Cui
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Qiu Zhao
- Department of Gastroenterology/Hepatology, ZhongNan Hospital of Wuhan University, Wuhan, China
- The Hubei Clinical Center & Key Laboratory of Intestinal & Colorectal Diseases, Wuhan, China
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35
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Chu PC, Lin PC, Wu HY, Lin KT, Wu C, Bekaii-Saab T, Lin YJ, Lee CT, Lee JC, Chen CS. Mutant KRAS promotes liver metastasis of colorectal cancer, in part, by upregulating the MEK-Sp1-DNMT1-miR-137-YB-1-IGF-IR signaling pathway. Oncogene 2018; 37:3440-3455. [PMID: 29559746 DOI: 10.1038/s41388-018-0222-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 11/20/2017] [Accepted: 02/25/2018] [Indexed: 02/07/2023]
Abstract
Although the role of insulin-like growth factor-I receptor (IGF-IR) in promoting colorectal liver metastasis is known, the mechanism by which IGF-IR is upregulated in colorectal cancer (CRC) is not defined. In this study, we obtained evidence that mutant KRAS transcriptionally activates IGF-IR gene expression through Y-box-binding protein (YB)-1 upregulation via a novel MEK-Sp1-DNMT1-miR-137 pathway in CRC cells. The mechanistic link between the tumor suppressive miR-137 and the translational regulation of YB-1 is intriguing because epigenetic silencing of miR-137 represents an early event in colorectal carcinogenesis due to promoter hypermethylation. This proposed signaling axis was further verified by the immunohistochemical evaluations of liver metastases from a cohort of 46 KRAS mutant CRC patients, which showed a significant correlation in the expression levels among Sp1, miR-137, YB-1, and IGF-1R. Moreover, suppression of the expression of YB-1 and IGF-IR via genetic knockdown or the pharmacological inhibition of MEK hampers KRAS-driven colorectal liver metastasis in our animal model studies. From a translational perspective, the identification of this KRAS-driven pathway might provide a mechanistic rationale for the use of a MEK inhibitor as an adjuvant, in combination with standard of care, to prevent the recurrence of colorectal liver metastasis in KRAS mutant CRC patients after receiving liver resection, which warrants further investigation.
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Affiliation(s)
- Po-Chen Chu
- Institute of Biological Chemistry, Academia Sinica, 11529, Taipei, Taiwan
- Institute of New Drug Development, College of Biopharmaceutical and Food Sciences, China Medical University, 40402, Taichung, Taiwan
| | - Peng-Chan Lin
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 70403, Tainan, Taiwan
| | - Hsing-Yu Wu
- Institute of Biological Chemistry, Academia Sinica, 11529, Taipei, Taiwan
- Institute of Biochemical Sciences, College of Life Science, National Taiwan University, 10617, Taipei, Taiwan
| | - Kuen-Tyng Lin
- Institute of Biological Chemistry, Academia Sinica, 11529, Taipei, Taiwan
| | - Christina Wu
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA
| | - Tanios Bekaii-Saab
- Mayo Clinic College of Medicine and Science, Mayo Clinic Cancer Center, Mayo Clinic, Phoenix, AZ, 85054, USA
| | - Yih-Jyh Lin
- Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 70403, Tainan, Taiwan
| | - Chung-Ta Lee
- Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 70403, Tainan, Taiwan
| | - Jeng-Chang Lee
- Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 70403, Tainan, Taiwan
| | - Ching-Shih Chen
- Institute of Biological Chemistry, Academia Sinica, 11529, Taipei, Taiwan.
- Institute of New Drug Development, College of Biopharmaceutical and Food Sciences, China Medical University, 40402, Taichung, Taiwan.
- Institute of Biochemical Sciences, College of Life Science, National Taiwan University, 10617, Taipei, Taiwan.
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36
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Liu X, Xu X. MicroRNA-137 dysregulation predisposes to osteoporotic fracture by impeding ALP activity and expression via suppression of leucine-rich repeat-containing G-protein-coupled receptor 4 expression. Int J Mol Med 2018; 42:1026-1033. [PMID: 29786747 DOI: 10.3892/ijmm.2018.3690] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 02/20/2018] [Indexed: 11/05/2022] Open
Abstract
Osteoporosis is defined as a loss of bone mass and deterioration of its architecture resulting in bone weakness, which becomes prone to fracture. The objective of this study was to investigate the molecular mechanism by which miR-137 can reduce the risk of fracture in patients with osteoporosis. An online miRNA database and a luciferase reporter assay system were used to confirm that leucine-rich repeat-containing G-protein-coupled receptor 4 (LGR4) was the target of miR-137. Real-time PCR and western blot analysis were used to study miR-137 mRNA, the expression of LGR4 mRNA and protein among different groups or cells transfected with a scrambled miRNA control, miR-137 mimic, LGR4 siRNA and miR-137 inhibitor. Expression of miR-137 was upregulated to higher levels in cells isolated from osteoporosis patients with fracture than in those without fracture. The 'seed sequence' was found to be located within the 3' untranslated region (3'-UTR) of LGR4 mRNA by searching an online miRNA database. Luciferase reporter assay was performed to confirm that LGR4 is a direct target gene of miR-137 with a potential binding site in the 3'UTR of LGR4. Luciferase activity of cells transfected with wild-type LGR4 3'UTR was much lower than that of the cells transfected with mutant LGR4 3'UTR. The results of real-time PCR and immunohistochemistry experiments demonstrated that the expression levels of LGR4 mRNA and protein were much higher in osteoporosis patients with fracture than osteoporosis patients without fracture. We found that the expression levels of LGR4 mRNA and protein were clearly upregulated following transfection with miR-137 inhibitor, while noticeably downregulated following transfection with miR-137 mimic when compared with the scramble control. Furthermore, the expression of ALP mRNA and ALP activity in bone tissue were much higher in osteoporosis patients with fracture than those without fracture. In conclusion, these data prove that the overexpression of miR-137 was associated with an altered risk of fracture in patients with osteoporosis, and can be used as a biomarker for the prediction of risk of fracture in osteoporosis.
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Affiliation(s)
- Xiangjun Liu
- Department of Orthopedics, The People's Hospital of Huangdao, Qingdao, Shandong 266400, P.R. China
| | - Xiaohui Xu
- Department of Orthopedics, The People's Hospital of Huangdao, Qingdao, Shandong 266400, P.R. China
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37
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Gao S, Zhao ZY, Wu R, Zhang Y, Zhang ZY. Prognostic value of microRNAs in colorectal cancer: a meta-analysis. Cancer Manag Res 2018; 10:907-929. [PMID: 29750053 PMCID: PMC5935085 DOI: 10.2147/cmar.s157493] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background Numerous studies have shown that miRNA levels are closely related to the survival time of patients with colon, rectal, or colorectal cancer (CRC). However, the outcomes of different investigations have been inconsistent. Accordingly, a meta-analysis was conducted to study associations among the three types of cancers. Materials and methods Studies published in English that estimated the expression levels of miRNAs with survival curves in CRC were identified until May 20, 2017 by online searches in PubMed, Embase, Web of Science, and the Cochrane Library by two independent authors. Pooled HRs with 95% CIs were used to estimate the correlation between miRNA expression and overall survival. Results A total of 63 relevant articles regarding 13 different miRNAs, with 10,254 patients were ultimately included. CRC patients with high expression of blood miR141 (HR 2.52, 95% CI 1.68-3.77), tissue miR21 (HR 1.31, 95% CI 1.12-1.53), miR181a (HR 1.52, 95% CI 1.26-1.83), or miR224 (HR 2.12, 95% CI 1.04-4.34), or low expression of tissue miR126 (HR 1.55, 95% CI 1.24-1.93) had significantly poor overall survival (P<0.05). Conclusion In general, blood miR141 and tissue miR21, miR181a, miR224, and miR126 had significant prognostic value. Among these, blood miR141 and tissue miR224 were strong biomarkers of prognosis for CRC.
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Affiliation(s)
- Song Gao
- Second Department of Clinical Oncology, Shengjing Hospital of China Medical University
| | - Zhi-Ying Zhao
- School of Computer Science and Engineering, Northeastern University, Shenyang
| | - Rong Wu
- Second Department of Clinical Oncology, Shengjing Hospital of China Medical University
| | - Yue Zhang
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zhen-Yong Zhang
- Second Department of Clinical Oncology, Shengjing Hospital of China Medical University
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38
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Wang M, Gao H, Qu H, Li J, Liu K, Han Z. MiR-137 suppresses tumor growth and metastasis in clear cell renal cell carcinoma. Pharmacol Rep 2018; 70:963-971. [PMID: 30107346 DOI: 10.1016/j.pharep.2018.04.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 04/09/2018] [Accepted: 04/20/2018] [Indexed: 01/11/2023]
Abstract
BACKGROUND The most frequent type of renal cell carcinoma is called clear-cell renal cell carcinoma (ccRCC) which is associated with a poor prognosis. It has been observed that miR-137 is aberrantly expressed in many different kinds of human malignancies including ccRCC. This research aims to examine the role of miR-137 in ccRCC. METHODS Quantitative RT-PCR (qRT-PCR) was applied to measure miR-137 expression in ccRCC and adjacent noncancerous tissue. Gene expression was determined by western blot. Cell Counting Kit-8 (CCK-8) assay, flow cytometry and Transwell assay were used to determine the effects of miR-137 on cell growth, apoptosis and invasion, respectively. Moreover, xenograft and pulmonary metastasis animal models were established to investigate the role of miR-137 in vivo. RESULTS Our findings show that there was significant downregulation of miR-137 in ccRCC tissue relative to corresponding non-cancerous tissue. Ectopic miR-137 expression in ccRCC cells led to suppression of cell growth and invasion, as well as apoptosis induction. In contrast, knockdown of miR-137 enhances proliferation and invasion, inhibits apoptosis. It also confirms that miR-137 plays a tumor supressor role in vivo. Mechanically, miR-137 directly targets the 3'-UTR of RLIP76 which is an established oncogene in ccRCC. CONCLUSION MiR-137 serves as a tumor suppressor, which can be considered a potential therapeutic target in ccRCC.
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Affiliation(s)
- Meizhi Wang
- Department of Critical Care Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hui Gao
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, China
| | - Haijun Qu
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jing Li
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Kaili Liu
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, China
| | - Zhiwu Han
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, China.
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39
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Fasihi A, M. Soltani B, Atashi A, Nasiri S. Introduction of
hsa‐miR‐103a
and
hsa‐miR‐1827
and
hsa‐miR‐137
as new regulators of Wnt signaling pathway and their relation to colorectal carcinoma. J Cell Biochem 2018; 119:5104-5117. [DOI: 10.1002/jcb.26357] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 08/15/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Ali Fasihi
- Molecular Genetics DepartmentFaculty of Biological SciencesTarbiat Modares UniversityTehranIran
| | - Bahram M. Soltani
- Molecular Genetics DepartmentFaculty of Biological SciencesTarbiat Modares UniversityTehranIran
| | - Amir Atashi
- Hematology DepartmentFaculty of Medical SciencesTarbiat Modares UniversityTehranIran
| | - Shirzad Nasiri
- Tehran University of Medical SciencesShariati HospitalTehranIran
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40
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Huang YC, Lee CT, Lee JC, Liu YW, Chen YJ, Tseng JT, Kang JW, Sheu BS, Lin BW, Hung LY. Epigenetic silencing of miR-137 contributes to early colorectal carcinogenesis by impaired Aurora-A inhibition. Oncotarget 2018; 7:76852-76866. [PMID: 27764771 PMCID: PMC5363554 DOI: 10.18632/oncotarget.12719] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Accepted: 10/12/2016] [Indexed: 12/22/2022] Open
Abstract
MicorRNA-137 is silenced in human colorectal cancer tissues and colon polyps. Our study showed that the decreased expression of miR-137 is significantly different in various types of polyp which maintain different potentials to lead to CRC development. The expression of miR-137 gradually decreases during the process of colorectal carcinogenesis. Receiver operating characteristic curve (ROC) analysis indicates that the loss of miR-137 expression in colon polyps can serve as a biomarker to predict the predisposition of colorectal carcinogenesis. By cell model and xenograft animal model, the enforced expression of miR-137 in colorectal cancer cells can inhibit cell proliferation and tumor formation, induce G2/M arrest, and lead to apoptosis. The expression pattern of miR-137 and Aurora-A or PTGS2 is negatively correlated in human colorectal cancer tissues and colon polyps. Those effects induced by overexpressed miR-137 can be rescued by the overexpression of Aurora-A. In summary, our study suggests that the loss of miR-137 expression in colon polyps can serve as a biomarker to predict the tendency toward to CRC formation through the impaired inhibitory effect of Aurora-A. The investigation of the regulatory mechanism of miR-137-mediated Aurora-A inhibition may shed new light on the early prognosis of cancer therapy for CRC in the future.
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Affiliation(s)
- Yu-Chuan Huang
- Institute of Bioinformatics and Biosignal Transduction, National Cheng-Kung University, Tainan 70101, Taiwan
| | - Chung-Ta Lee
- Department of Pathology, National Cheng-Kung University Hospital, Tainan 70403, Taiwan
| | - Jenq-Chang Lee
- Department of Surgery, National Cheng-Kung University Hospital, Tainan 70403, Taiwan
| | - Yao-Wen Liu
- Department of Pathology, Kuo General Hospital, Tainan 70054, Taiwan
| | - Ying-Jen Chen
- Department of Life Sciences, College of Bioscience and Biotechnology, National Cheng-Kung University, Tainan 70101, Taiwan
| | - Joseph T Tseng
- Institute of Bioinformatics and Biosignal Transduction, National Cheng-Kung University, Tainan 70101, Taiwan.,Department of Biotechnology and Bioindustry Sciences, National Cheng-Kung University, Tainan 70101, Taiwan
| | - Jui-Wen Kang
- Department of Internal Medicine, National Cheng-Kung University Hospital, Tainan 70403, Taiwan
| | - Bor-Shyang Sheu
- Department of Internal Medicine, National Cheng-Kung University Hospital, Tainan 70403, Taiwan
| | - Bo-Wen Lin
- Department of Surgery, National Cheng-Kung University Hospital, Tainan 70403, Taiwan
| | - Liang-Yi Hung
- Institute of Bioinformatics and Biosignal Transduction, National Cheng-Kung University, Tainan 70101, Taiwan.,Department of Biotechnology and Bioindustry Sciences, National Cheng-Kung University, Tainan 70101, Taiwan.,Center for Infectious Disease and Signal Transduction Research, College of Medicine, National Cheng-Kung University, Tainan 70101, Taiwan.,Institute for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
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41
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Zhao L, Yu H, Yi S, Peng X, Su P, Xiao Z, Liu R, Tang A, Li X, Liu F, Shen S. The tumor suppressor miR-138-5p targets PD-L1 in colorectal cancer. Oncotarget 2018; 7:45370-45384. [PMID: 27248318 PMCID: PMC5216728 DOI: 10.18632/oncotarget.9659] [Citation(s) in RCA: 166] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 05/13/2016] [Indexed: 12/14/2022] Open
Abstract
microRNAs (miRNAs) play critical roles in cancer development and progression. This study investigated the effects of miR-138-5p in human colorectal cancer (CRC) development. miR-138-5p was frequently downregulated in CRC tissues and was associated with advanced clinical stage, lymph node metastasis and poor overall survival. We found that miR-138-5p decreased expression of programmed cell death ligand 1 (PD-L1) through interaction with its PD-L1 3′ untranslated region. miR-138-5p also dramatically suppressed CRC cell growth in vitro and inhibited tumorigenesis in vivo. PD-L1 and miR-138-5p levels were inversely correlated in human CRC tumors, and miR-138-5p inhibited PD-L1 expression in tumor models. These results suggest that miR-138-5p is a tumor suppressor in CRC, and its effects are exerted at least partially through PD-L1 downregulation. Low miR-138-5p and high PD-L1 levels correlated with shorter overall CRC patient survival, indicating that miR-138-5p and PD-L1 may serve as CRC biomarkers for risk group assignment, optimal therapy selection and clinical outcome prediction. Targeting PD-L1, possibly by administering miR-138-5p mimics, might be a clinically effective anti-CRC therapeutic strategy.
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Affiliation(s)
- Lian Zhao
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Haibo Yu
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shuijing Yi
- Department of Gynaecology and Obstetrics, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaowei Peng
- Department of Breast Oncology Plastic and Head and Neck, The Affiliated Cancer Hospital of Xiangya Medical School, Hunan, China
| | - Peng Su
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Zhiming Xiao
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Rui Liu
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Anliu Tang
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Xiayu Li
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Fen Liu
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Shourong Shen
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
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42
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Evaluating the accuracy of microRNA27b and microRNA137 as biomarkers of activity and potential malignant transformation in oral lichen planus patients. Arch Dermatol Res 2018; 310:209-220. [DOI: 10.1007/s00403-018-1805-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 05/22/2017] [Accepted: 01/04/2018] [Indexed: 01/01/2023]
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43
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Sugai T, Takahashi Y, Eizuka M, Sugimoto R, Fujita Y, Habano W, Otsuka K, Sasaki A, Yamamoto E, Matsumoto T, Suzuki H. Molecular profiling and genome-wide analysis based on somatic copy number alterations in advanced colorectal cancers. Mol Carcinog 2017; 57:451-461. [PMID: 29230882 PMCID: PMC5814737 DOI: 10.1002/mc.22769] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 11/18/2017] [Accepted: 11/20/2017] [Indexed: 12/13/2022]
Abstract
To characterize somatic alterations in colorectal cancer (CRC), we conducted a genome-scale analysis of 106 CRC specimens. We assessed comprehensive somatic copy number alterations (SCNAs) in these CRC specimens. In addition, we examined microsatellite instability (MSI; low and high), genetic mutations (KRAS, BRAF, TP53, and PIK3CA), and DNA methylation status (classified into low, intermediate, and high type). We stratified molecular alterations in the CRCs using a hierarchical cluster analysis. The examined CRCs could be categorized into three subgroups using hierarchical cluster analysis. Tumors in subgroup 1 were characterized by a low frequency of SCNAs and a high frequency of MSI-high status, whereas tumors in subgroups 2 and 3 were closely associated with a high frequency of SCNAs. Tumors in subgroup 1 were preferentially present in the right-sided colon and showed frequent MSI-high status. Subgroup 3 was distinguished by specific alterations, including gains at 1q23-44, 1p11-36, 10q11-26, 10p11-13, 12q24-24, and 13q33-33. In contrast, tumors in subgroup 2 were characterized by copy-neutral LOH at 12p12-13, 1q24-25, and 10q22. In addition, KRAS mutations were more frequently found in subgroup 3 than in subgroup 1. TP53 mutations and intermediate levels of DNA methylation were common alterations in the three subgroups. SCNAs contributed to sporadic CRC, and there were three subgroups based on SCNAs that played a different role in driving the development of this disease.
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Affiliation(s)
- Tamotsu Sugai
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, Morioka, Japan
| | - Yayoi Takahashi
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, Morioka, Japan
| | - Makoto Eizuka
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, Morioka, Japan
| | - Ryo Sugimoto
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, Morioka, Japan
| | - Yasuko Fujita
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, Morioka, Japan
| | - Wataru Habano
- Department of Pharmacodynamics and Molecular Genetics, School of Pharmacy, Iwate Medical University, Morioka, Japan
| | - Kouki Otsuka
- Department of Surgery, School of Medicine, Iwate Medical University, Morioka, Japan
| | - Akira Sasaki
- Department of Surgery, School of Medicine, Iwate Medical University, Morioka, Japan
| | - Eiichiro Yamamoto
- Department of Molecular Biology, School of Medicine, Sapporo Medical University, Sapporo, Japan
| | - Takayuki Matsumoto
- Division of Gastroenterology, Department of Internal Medicine, School of Medicine, Iwate Medical University, Morioka, Japan
| | - Hiromu Suzuki
- Department of Molecular Biology, School of Medicine, Sapporo Medical University, Sapporo, Japan
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44
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Xu T, Zhou Q, Che L, Das S, Wang L, Jiang J, Li G, Xu J, Yao J, Wang H, Dai Y, Xiao J. Circulating miR-21, miR-378, and miR-940 increase in response to an acute exhaustive exercise in chronic heart failure patients. Oncotarget 2017; 7:12414-25. [PMID: 26799589 PMCID: PMC4914295 DOI: 10.18632/oncotarget.6966] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Accepted: 01/05/2016] [Indexed: 12/25/2022] Open
Abstract
Congestive heart failure (CHF) is a major cause of hospitalizations, morbidity, and mortality in Western societies. In addition to optimal medical and device therapy, exercise training is an important adjunct treatment option for CHF patients. MicroRNAs (miRNAs, miRs) participate in a variety of physiological and pathological processes. Dynamic regulation of circulating miRNAs during exercise in healthy persons and athletes has recently been documented, however, the response of circulating miRNAs to exercise in CHF patients is undetermined. Twenty-eight CHF patients underwent a symptom-limited incremental cardiopulmonary exercise test on a bicycle ergometer using a standardized exercise protocol of revised Ramp10 programs at Shanghai Tongji Hospital. Blood samples were collected before and immediately after an acute exercise session. RNA was extracted from the serum and selected miRNAs were determined using quantitative polymerase chain reactions. Moreover, inflammatory and muscle damage markers were determined by enzyme linked immunosorbent assays. We found that serum miR-21, miR-378 and miR-940 levels were significantly up-regulated immediately following an acute exercise while the rest were not changed. In addition, no robust correlation was identified between changes of these miRNAs and exercise capacity, muscle damage or inflammation. In conclusion, serum miR-21, miR-378, and miR-940 increase in response to an acute exhaustive exercise in CHF patients. Further studies are needed to clarify the potential use of circulating miRNAs as biomarkers of exercise adaptation in CHF patients, and if they have any use as prognostic markers of cardiovascular outcomes.
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Affiliation(s)
- Tianzhao Xu
- Regeneration and Ageing Lab, Experimental Center of Life Sciences, School of Life Science, Shanghai University, Shanghai 200444, China.,Shanghai Key Laboratory of Bio-Energy Crops, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Qiulian Zhou
- Regeneration and Ageing Lab, Experimental Center of Life Sciences, School of Life Science, Shanghai University, Shanghai 200444, China.,Shanghai Key Laboratory of Bio-Energy Crops, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Lin Che
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Saumya Das
- Cardiovascular Division of the Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
| | - Lemin Wang
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Jinfa Jiang
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Guanghe Li
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Jiahong Xu
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Jianhua Yao
- Department of Cardiology, Yangpu Hospital, Tongji University School of Medicine, Shanghai 200090, China
| | - Hongbao Wang
- Department of Cardiology, Yangpu Hospital, Tongji University School of Medicine, Shanghai 200090, China
| | - Yue Dai
- Department of Cardiology, Yangpu Hospital, Tongji University School of Medicine, Shanghai 200090, China
| | - Junjie Xiao
- Regeneration and Ageing Lab, Experimental Center of Life Sciences, School of Life Science, Shanghai University, Shanghai 200444, China.,Shanghai Key Laboratory of Bio-Energy Crops, School of Life Science, Shanghai University, Shanghai 200444, China
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45
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Liang ML, Hsieh TH, Ng KH, Tsai YN, Tsai CF, Chao ME, Liu DJ, Chu SS, Chen W, Liu YR, Liu RS, Lin SC, Ho DMT, Wong TT, Yang MH, Wang HW. Downregulation of miR-137 and miR-6500-3p promotes cell proliferation in pediatric high-grade gliomas. Oncotarget 2017; 7:19723-37. [PMID: 26933822 PMCID: PMC4991414 DOI: 10.18632/oncotarget.7736] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 02/18/2016] [Indexed: 01/22/2023] Open
Abstract
Pediatric high-grade gliomas (pHGGs) are aggressive brain tumors affecting children, and outcomes have remained dismal, even with access to new multimodal therapies. In this study, we compared the miRNomes and transcriptomes of pediatric low- (pLGGs) and high-grade gliomas (pHGGs) using small RNA sequencing (smRNA-Seq) and gene expression microarray, respectively. Through integrated bioinformatics analyses and experimental validation, we identified miR-137 and miR-6500-3p as significantly downregulated in pHGGs. miR-137 or miR-6500-3p overexpression reduced cell proliferation in two pHGG cell lines, SF188 and UW479. CENPE, KIF14 and NCAPG levels were significantly higher in pHGGs than pLGGs, and were direct targets of miR-137 or miR-6500-3p. Furthermore, knockdown of CENPE, KIF14 or NCAPG combined with temozolomide treatment resulted in a combined suppressive effect on pHGG cell proliferation. In summary, our results identify novel mRNA/miRNA interactions that contribute to pediatric glioma malignancy and represent potential targets for the development of new therapeutic strategies.
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Affiliation(s)
- Muh-Lii Liang
- Institutes of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Division of Pediatric Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Tsung-Han Hsieh
- PhD Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.,Comprehensive Cancer Center of Taipei Medical University, Taipei Medical University, Taipei, Taiwan
| | - Kim-Hai Ng
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Ya-Ni Tsai
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Cheng-Fong Tsai
- Institute of Biomedical Informatics, National Yang-Ming University, Taipei, Taiwan
| | - Meng-En Chao
- Institutes of Clinical Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Neurosurgery, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
| | - Da-Jung Liu
- Division of Pediatric Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shing-Shiung Chu
- Institutes of Clinical Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Neurosurgery, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
| | - Wan Chen
- Institutes of Clinical Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Neurosurgery, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
| | - Yun-Ru Liu
- Comprehensive Cancer Center of Taipei Medical University, Taipei Medical University, Taipei, Taiwan.,Joint Biobank, Office of Human Research, Taipei Medical University, Taipei, Taiwan
| | - Ren-Shyan Liu
- School of Medicine, National Yang-Ming University, Taipei, Taiwan.,National PET/Cyclotron Center, Department of Nuclear Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Molecular and Genetic Imaging Core/Taiwan Mouse Clinic National Comprehensive Mouse Phenotyping and Drug Testing Center, Taipei, Taiwan
| | - Shih-Chieh Lin
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Donald Ming-Tak Ho
- School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Tai-Tong Wong
- Division of Pediatric Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,Institutes of Clinical Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Neurosurgery, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan.,Joint Biobank, Office of Human Research, Taipei Medical University, Taipei, Taiwan
| | - Muh-Hwa Yang
- Institutes of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Cancer Research Center & Genome Research Center, National Yang-Ming University, Taipei, Taiwan.,Division of Hematology-Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Immunity and Inflammation Research Center, National Yang-Ming University, Taipei, Taiwan.,Genomic Research Center, Academia Sinica, Taipei, Taiwan
| | - Hsei-Wei Wang
- Institutes of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan.,Institute of Biomedical Informatics, National Yang-Ming University, Taipei, Taiwan.,Cancer Research Center & Genome Research Center, National Yang-Ming University, Taipei, Taiwan
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46
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Mukohyama J, Shimono Y, Minami H, Kakeji Y, Suzuki A. Roles of microRNAs and RNA-Binding Proteins in the Regulation of Colorectal Cancer Stem Cells. Cancers (Basel) 2017; 9:cancers9100143. [PMID: 29064439 PMCID: PMC5664082 DOI: 10.3390/cancers9100143] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 10/17/2017] [Accepted: 10/17/2017] [Indexed: 12/28/2022] Open
Abstract
Colorectal cancer stem cells (CSCs) are responsible for the initiation, progression and metastasis of human colorectal cancers, and have been characterized by the expression of cell surface markers, such as CD44, CD133, CD166 and LGR5. MicroRNAs (miRNAs) are differentially expressed between CSCs and non-tumorigenic cancer cells, and play important roles in the maintenance and regulation of stem cell properties of CSCs. RNA binding proteins (RBPs) are emerging epigenetic regulators of various RNA processing events, such as splicing, localization, stabilization and translation, and can regulate various types of stem cells. In this review, we summarize current evidences on the roles of miRNA and RBPs in the regulation of colorectal CSCs. Understanding the epigenetic regulation of human colorectal CSCs will help to develop biomarkers for colorectal cancers and to identify targets for CSC-targeting therapies.
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Affiliation(s)
- Junko Mukohyama
- Division of Molecular and Cellular Biology, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan.
- Division of Gastrointestinal Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan.
- Department of Pathology and Cell Biology, Department of Medicine (Division of Digestive and Liver Diseases) and Herbert Irving Comprehensive Cancer Center (HICCC), Columbia University, New York, NY 10032, USA.
| | - Yohei Shimono
- Division of Molecular and Cellular Biology, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan.
- Division of Medical Oncology/Hematology, Kobe University Graduate School of Medicine, Kobe, Hyogo 6500017, Japan.
| | - Hironobu Minami
- Division of Medical Oncology/Hematology, Kobe University Graduate School of Medicine, Kobe, Hyogo 6500017, Japan.
| | - Yoshihiro Kakeji
- Division of Gastrointestinal Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan.
| | - Akira Suzuki
- Division of Molecular and Cellular Biology, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan.
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47
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Shou Z, Jin X, He X, Zhao Z, Chen Y, Ye M, Yao J. Overexpression of Musashi-1 protein is associated with progression and poor prognosis of gastric cancer. Oncol Lett 2017; 13:3556-3566. [PMID: 28521458 PMCID: PMC5431268 DOI: 10.3892/ol.2017.5879] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 01/12/2017] [Indexed: 12/13/2022] Open
Abstract
Musashi-1, an evolutionally conserved RNA-binding protein, has been implicated in the promotion of pathological stem cell proliferation, including tumorigenesis. The objective of the present study was to evaluate the expression of Musashi-1 protein and its implications in the progression and prognosis of gastric cancer. The expression level of Musashi-1 protein in gastric cancer was determined by western blotting and immunohistochemistry, and compared with the clinicopathological parameters. The present study revealed that the expression level of Musashi-1 protein in gastric cancer was significantly upregulated and correlated with the tumor size, tumor-node-metastasis (TNM) stage, Lauren classification, depth of invasion, vessel invasion, lymph node metastasis and distant metastasis. The mean survival time for patients with low expression levels of Musashi-1 was significantly longer compared with patients with high expression levels of Musashi-1. For each TNM stage, the mean survival time for patients with a low Musashi-1 expression levels was also significantly longer compared with patients with a high Musashi-1 expression level. Notably, TNM stage II patients with a low Musashi-1 expression level demonstrated a longer mean survival time compared with TNM stage I patients with high Musashi-1 expression level (56.8 vs. 42.3 months; P=0.001), and TNM stage III patients with low Musashi-1 expression level exhibited a longer mean survival time compared with TNM stage II patients with a high Musashi-1 expression level (44.0 vs. 33.8 months; P=0.034). Multivariate Cox's regression test demonstrated that Musashi-1 protein expression level was an independent prognostic indicator for the survival rate of the patients with gastric cancer. The results of the present study highlighted an important role for Musashi-1 protein in the progression of gastric cancer. The detection of the Musashi-1 protein expression level alone or in combination with TNM staging may aid the prediction of the prognosis of patients with gastric cancer.
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Affiliation(s)
- Zhangxuan Shou
- Department of Pharmaceutical Sciences, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Xue Jin
- Department of Pharmaceutical Sciences, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Xujun He
- Key Laboratory of Gastroenterology of Zhejiang, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Zhongsheng Zhao
- Department of Pathology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Yuan Chen
- Department of Pathology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Meihua Ye
- Department of Pathology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Jiong Yao
- Department of Medical Records and Statistics, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
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48
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Zhang Z, Song X, Tian H, Miao Y, Feng X, Li Y, Wang H. MicroRNA-137 inhibits growth of glioblastoma through EGFR suppression. Am J Transl Res 2017; 9:1492-1499. [PMID: 28386374 PMCID: PMC5376039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Accepted: 02/08/2017] [Indexed: 06/07/2023]
Abstract
Aberrant expression of certain microRNAs (miRNAs) has been shown to contribute to the development of Glioblastoma multiforme (GBM). However, the involvement of miR-137 in the carcinogenesis of GBM has not been reported. Here, we showed that miR-137 levels in GBM tissues were significantly lower than the paired normal brain tissue in patients' specimens. Moreover, low miR-137 levels in GBM tissue were associated with poor prognosis. In vitro, overexpression of miR-137 decreased GBM cell growth and increased cell apoptosis, while depletion of miR-137 enhanced cell growth and decreased cell apoptosis. Combined bioinformatics analysis and dual luciferase reporter assay showed that miR-137 may target the 3'-UTR of the epidermal growth factor receptor (EGFR) to reduce its protein translation, resulting in suppression of EGFR signaling in GBM cells. Together, our data suggest that reduction in miR-137 levels in GBM tissues may increase cell growth and decrease cell apoptosis, possibly through suppression of EGFR.
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Affiliation(s)
- Zhenxing Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Jinzhou Medical UniversityJinzhou 121001, China
| | - Xiaofeng Song
- Department of Histology and Embryology, Jinzhou Medical UniversityJinzhou 121001, China
| | - He Tian
- Department of Histology and Embryology, Jinzhou Medical UniversityJinzhou 121001, China
| | - Ye Miao
- Department of Neurosurgery, The First Affiliated Hospital of Jinzhou Medical UniversityJinzhou 121001, China
| | - Xu Feng
- Department of Neurosurgery, The First Affiliated Hospital of Jinzhou Medical UniversityJinzhou 121001, China
| | - Yang Li
- Department of Neurosurgery, The First Affiliated Hospital of Jinzhou Medical UniversityJinzhou 121001, China
| | - Honglei Wang
- Department of Neurosurgery, The First Affiliated Hospital of Jinzhou Medical UniversityJinzhou 121001, China
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49
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Ying X, Sun Y, He P. MicroRNA-137 inhibits BMP7 to enhance the epithelial-mesenchymal transition of breast cancer cells. Oncotarget 2017; 8:18348-18358. [PMID: 28407692 PMCID: PMC5392333 DOI: 10.18632/oncotarget.15442] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 01/11/2017] [Indexed: 12/22/2022] Open
Abstract
Bone morphogenetic protein-7 (BMP7) is known to antagonize transforming growth factor β 1 (TGFβ1)-mediated fibrosis through suppressing epithelial-mesenchymal transition (EMT). We recently reported that BMP7 also antagonizes the effects of TGFβ1 in breast cancer (BC) tumorigenesis-related EMT. Nevertheless, the control of BMP7 expression in BC remains ill-defined. Here, we detected significantly lower levels of BMP7 and significantly higher levels of microRNA-137 (miR-137) in the BC specimens, relative to paired adjacent non-tumor breast tissue. BMP7 and miR-137 levels were correlated inversely. Additionally, the high miR-137 levels in BC specimens were correlated with reduced patient survival. In vitro, overexpression of miR-137 significantly increased cell EMT and invasion, while depletion of miR-137 significantly decreased cell EMT and invasion in BC cells. The increases in BC cell invasiveness by miR-137 appeared to result from its suppression of BMP7, through direct binding of miR-137 to the 3'-UTR of BMP7 mRNA, thereby blocking its protein translation in BC cells. This study sheds light on miR-137 as a crucial factor that enhances BC cell EMT and invasiveness, and points to miR-137 as a promising innovative therapeutic target for BC treatment.
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Affiliation(s)
- Xuexiang Ying
- 1 Department of General Surgery, Shanghai Jiaotong University Affiliated Sixth People's Hospital, 200233, China
| | - Yunpo Sun
- 1 Department of General Surgery, Shanghai Jiaotong University Affiliated Sixth People's Hospital, 200233, China
| | - Pingqing He
- 1 Department of General Surgery, Shanghai Jiaotong University Affiliated Sixth People's Hospital, 200233, China
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50
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Kudinov AE, Karanicolas J, Golemis EA, Boumber Y. Musashi RNA-Binding Proteins as Cancer Drivers and Novel Therapeutic Targets. Clin Cancer Res 2017; 23:2143-2153. [PMID: 28143872 DOI: 10.1158/1078-0432.ccr-16-2728] [Citation(s) in RCA: 175] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 12/16/2016] [Accepted: 12/19/2016] [Indexed: 12/12/2022]
Abstract
Aberrant gene expression that drives human cancer can arise from epigenetic dysregulation. Although much attention has focused on altered activity of transcription factors and chromatin-modulating proteins, proteins that act posttranscriptionally can potently affect expression of oncogenic signaling proteins. The RNA-binding proteins (RBP) Musashi-1 (MSI1) and Musashi-2 (MSI2) are emerging as regulators of multiple critical biological processes relevant to cancer initiation, progression, and drug resistance. Following identification of Musashi as a regulator of progenitor cell identity in Drosophila, the human Musashi proteins were initially linked to control of maintenance of hematopoietic stem cells, then stem cell compartments for additional cell types. More recently, the Musashi proteins were found to be overexpressed and prognostic of outcome in numerous cancer types, including colorectal, lung, and pancreatic cancers; glioblastoma; and several leukemias. MSI1 and MSI2 bind and regulate the mRNA stability and translation of proteins operating in essential oncogenic signaling pathways, including NUMB/Notch, PTEN/mTOR, TGFβ/SMAD3, MYC, cMET, and others. On the basis of these activities, MSI proteins maintain cancer stem cell populations and regulate cancer invasion, metastasis, and development of more aggressive cancer phenotypes, including drug resistance. Although RBPs are viewed as difficult therapeutic targets, initial efforts to develop MSI-specific inhibitors are promising, and RNA interference-based approaches to inhibiting these proteins have had promising outcomes in preclinical studies. In the interim, understanding the function of these translational regulators may yield insight into the relationship between mRNA expression and protein expression in tumors, guiding tumor-profiling analysis. This review provides a current overview of Musashi as a cancer driver and novel therapeutic target. Clin Cancer Res; 23(9); 2143-53. ©2017 AACR.
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Affiliation(s)
- Alexander E Kudinov
- Program in Molecular Therapeutics, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - John Karanicolas
- Program in Molecular Therapeutics, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Erica A Golemis
- Program in Molecular Therapeutics, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Yanis Boumber
- Program in Molecular Therapeutics, Fox Chase Cancer Center, Philadelphia, Pennsylvania. .,Department of Hematology/Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
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