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Zuo C, Fan P, Yang Y, Hu C. MiR-488-3p facilitates wound healing through CYP1B1-mediated Wnt/β-catenin signaling pathway by targeting MeCP2. J Diabetes Investig 2024; 15:145-158. [PMID: 37961023 PMCID: PMC10804895 DOI: 10.1111/jdi.14099] [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: 06/12/2023] [Revised: 09/15/2023] [Accepted: 09/28/2023] [Indexed: 11/15/2023] Open
Abstract
INTRODUCTION Diabetic wounds are difficult to heal, but the pathogenesis is unknown. MicroRNAs (miRNAs) are thought to play important roles in wound healing. The effect of miR-488-3p in wound healing was studied in this article. MATERIALS AND METHODS The gene methylation was measured by methylation specific PCR (MSP) assay. A dual-luciferase reporter assay was adopted to analyze the interaction between miR-488-3p and MeCP2. RESULTS Cytochrome P450 1B1 (CYP1B1) is a monooxygenase belonging to the cytochrome P450 family that aids in wound healing. Our findings showed that the miR-488-3p and CYP1B1 expression levels were much lower in wound tissues of diabetics with skin defects, but the methyl-CpG-binding protein 2 (MeCP2) level was significantly higher than that in control skin tissues. MiR-488-3p overexpression increased cell proliferation and migration, as well as HUVEC angiogenesis, while inhibiting apoptosis, according to function experiments. In vitro, MeCP2 inhibited wound healing by acting as a target of miR-488-3p. We later discovered that MeCP2 inhibited CYP1B1 expression by enhancing its methylation state. In addition, CYP1B1 knockdown inhibited wound healing. Furthermore, MeCP2 overexpression abolished the promoting effect of miR-488-3p on wound healing. It also turned out that CYP1B1 promoted wound healing by activating the Wnt4/β-catenin pathway. Animal experiments also showed that miR-488-3p overexpression could accelerate wound healing in diabetic male SD rats. CONCLUSIONS MiR-488-3p is a potential therapeutic target for diabetic wound healing since it improved wound healing by activating the CYP1B1-mediated Wnt4/-catenin signaling cascade via MeCP2.
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Affiliation(s)
- Chenchen Zuo
- Department of Plastic Surgery, Xiangya HospitalCentral South UniversityChangshaHunanChina
| | - Pengju Fan
- Department of Plastic Surgery, Xiangya HospitalCentral South UniversityChangshaHunanChina
| | - Ying Yang
- Department of Plastic Surgery, Xiangya HospitalCentral South UniversityChangshaHunanChina
| | - Chengjun Hu
- Department of Plastic Surgery, Xiangya HospitalCentral South UniversityChangshaHunanChina
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2
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Zhang Y, Sun X, Li Z, Han X, Wang W, Xu P, Liu Y, Xue Y, Wang Z, Xu S, Wang X, Li G, Tian Y, Zhao Q. Interactions between miRNAs and the Wnt/β-catenin signaling pathway in endometriosis. Biomed Pharmacother 2024; 171:116182. [PMID: 38262146 DOI: 10.1016/j.biopha.2024.116182] [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] [Received: 08/01/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 01/25/2024] Open
Abstract
Endometriosis is a disease characterized by the ectopic growth of endometrial tissue (glands and stroma) outside the confines of the uterus and often involves vital organs such as the intestines and urinary system. Endometriosis is considered a refractory disease owing to its enigmatic etiology, propensity for recurrence following conservative or surgical interventions, and the absence of radical treatment and long-term management. In recent years, the incidence of endometriosis has gradually increased, rendering it a pressing concern among women of childbearing age. A more profound understanding of its pathogenesis can significantly improve prognosis. Recent research endeavors have spotlighted the molecular mechanisms by which microRNAs (miRNAs) regulate the occurrence and progression of endometriosis. Many miRNAs have been reported to be aberrantly expressed in the affected tissues of both patients and animal models. These miRNAs actively participate in the regulation of inflammatory reactions, cellular proliferation, angiogenesis, and tissue remodeling. Their capacity to modulate crucial signaling pathways, such as the Wnt/β-catenin signaling pathway, reinforces their potential utility as diagnostic markers or therapeutic agents for endometriosis. In this review, we provide the latest insights into the role of miRNAs that interact with the Wnt/β-catenin pathway to regulate the biological behaviors of endometriosis cells and disease-related symptoms, such as pain and infertility. We hope that this review will provide novel insights and promising targets for innovative therapies addressing endometriosis.
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Affiliation(s)
- Yu Zhang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Xueyu Sun
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China; Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, PR China
| | - Zhongkang Li
- Department of Obstetrics and Gynecology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China
| | - Xianhong Han
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Wenjun Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Penglin Xu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Yangyang Liu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Yuna Xue
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Zhe Wang
- Department of Basic Medicine, Chengde Medical College, Chengde, Hebei 067000, PR China
| | - Shuling Xu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Xueying Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Gailing Li
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Yanpeng Tian
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China.
| | - Qian Zhao
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China.
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Yang J, Wang X, Hao W, Wang Y, Li Z, Han Q, Zhang C, Liu H. MicroRNA-488: A miRNA with diverse roles and clinical applications in cancer and other human diseases. Biomed Pharmacother 2023; 165:115115. [PMID: 37418982 DOI: 10.1016/j.biopha.2023.115115] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/28/2023] [Accepted: 06/30/2023] [Indexed: 07/09/2023] Open
Abstract
MicroRNAs (miRNAs) are a class of small non-coding RNAs that post-transcriptionally regulate the expression of approximately 50 % of all protein-coding genes. They have been demonstrated to act as key regulators in various pathophysiological processes and play significant roles in a wide range of human diseases, particularly cancer. Current research highlights the aberrant expression of microRNA-488 (miR-488) in multiple human diseases and its critical involvement in disease initiation and progression. Moreover, the expression level of miR-488 has been linked to clinicopathological features and patient prognosis across different diseases. However, a comprehensive systematic review of miR-488 is lacking. Therefore, our study aims to consolidate the current knowledge surrounding miR-488, with a primary focus on its emerging biological functions, regulatory mechanisms, and potential clinical applications in human diseases. Through this review, we aim to establish a comprehensive understanding of the diverse roles of miR-488 in the development of various diseases.
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Affiliation(s)
- Jiao Yang
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China; Department of Anatomy, the Basic Medical School of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
| | - Xinfang Wang
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China; Department of Cell biology and Genetics, the Basic Medical School of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
| | - Wenjing Hao
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China; Department of Cell biology and Genetics, the Basic Medical School of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
| | - Ying Wang
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China; Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
| | - Zhongxun Li
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China; Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
| | - Qi Han
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China; Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China
| | - Chunming Zhang
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China; Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China; Department of Otolaryngology Head & Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China.
| | - Hongliang Liu
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China; Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China; Department of Otolaryngology Head & Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China; Department of Cell biology and Genetics, the Basic Medical School of Shanxi Medical University, Taiyuan 030001, Shanxi, PR China.
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Yang D, Shi M, You Q, Zhang Y, Hu Z, Xu J, Cai Q, Zhu Z. Tumor- and metastasis-promoting roles of miR-488 inhibition via HULC enhancement and EZH2-mediated p53 repression in gastric cancer. Cell Biol Toxicol 2023; 39:1341-1358. [PMID: 36449143 DOI: 10.1007/s10565-022-09760-y] [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] [Received: 07/27/2021] [Accepted: 08/26/2022] [Indexed: 12/02/2022]
Abstract
Dysregulation of microRNAs (miRNAs or miRs) is implicated in the development of gastric cancer (GC), which is possibly related to their roles in targeting tumor-suppressive or tumor-promoting genes. Herein, the current study was intended to ascertain the function of miR-488 and its modulatory mechanism in GC. Initially, human GC cells were assayed for their in vitro malignancy after miRNA gain- or loss-of-function and RNA interference or overexpression. Also, tumorigenesis and liver metastasis were evaluated in nude mouse models. Results demonstrated that miR-488 elevation suppressed GC (MKN-45 and OCUM-1) cell proliferation, migration, and invasiveness in vitro and reduced their tumorigenesis and liver metastasis in vivo. The luciferase assay identified that miR-488 bound to HULC and inhibited its expression. Furthermore, HULC could enhance EZH2-H3K27me3 enrichment at the p53 promoter region and epigenetically repress the p53 expression based on the data from RIP- and ChIP-qPCR assay. Additionally, HULC was validated to enhance GC growth and metastasis in vitro and in vivo. Overall, HULC re-expression elicited by miR-488 inhibition can enhance EZH2-H3K27me3 enrichment in the p53 promoter and repress the p53 expression, thus promoting the growth and metastasis of GC.
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Affiliation(s)
- Dejun Yang
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Naval Medical University, Huangpu District, No. 415 Fengyang Road, Shanghai, 200003, China
| | - Mengyao Shi
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Naval Medical University, Huangpu District, No. 415 Fengyang Road, Shanghai, 200003, China
| | - Qing You
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Naval Medical University, Huangpu District, No. 415 Fengyang Road, Shanghai, 200003, China
| | - Yu Zhang
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Naval Medical University, Huangpu District, No. 415 Fengyang Road, Shanghai, 200003, China
| | - Zunqi Hu
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Naval Medical University, Huangpu District, No. 415 Fengyang Road, Shanghai, 200003, China
| | - Jiapeng Xu
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Naval Medical University, Huangpu District, No. 415 Fengyang Road, Shanghai, 200003, China
| | - Qingping Cai
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Naval Medical University, Huangpu District, No. 415 Fengyang Road, Shanghai, 200003, China.
| | - Zhenxin Zhu
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Naval Medical University, Huangpu District, No. 415 Fengyang Road, Shanghai, 200003, China.
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Shah JA, Miao Y, Chu J, Chen W, Zhao Q, Cai C, Khattak S, Wang F, Jin J. Feedback Modulation between Human INO80 Chromatin Remodeling Complex and miR-372 in HCT116 Cells. Int J Mol Sci 2023; 24:10685. [PMID: 37445863 DOI: 10.3390/ijms241310685] [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: 05/15/2023] [Revised: 06/21/2023] [Accepted: 06/24/2023] [Indexed: 07/15/2023] Open
Abstract
Human INO80 chromatin remodeling complex (INO80 complex) as a transcription cofactor is widely involved in gene transcription regulation and is frequently highly expressed in tumor cells. However, few reports exist on the mutual regulatory mechanism between INO80 complex and non-coding microRNAs. Herein, we showed evidence that the INO80 complex transcriptionally controls microRNA-372 (miR-372) expression through RNA-Seq analysis and a series of biological experiments. Knocking down multiple subunits in the INO80 complex, including the INO80 catalytic subunit, YY1, Ies2, and Arp8, can significantly increase the expression level of miR-372. Interestingly, mimicking miR-372 expression in HCT116 cells, in turn, post-transcriptionally suppressed INO80 and Arp8 expression at both mRNA and protein levels, indicating the existence of a mutual regulatory mechanism between the INO80 complex and miR-372. The target relationship between miR-372 and INO80 complex was verified using luciferase assays in HCT116 colon cancer cells. As expected, miR-372 mimics significantly suppressed the luciferase activity of pMIR-luc/INO80 and pMIR-luc/Arp8 3'-UTR in cells. In contrast, the miR-372 target sites in the 3'-UTRs linked to the luciferase reporter were mutagenized, and both mutant sites lost their response to miR-372. Furthermore, the mutual modulation between the INO80 complex and miR-372 was involved in cell proliferation and the p53/p21 signaling pathway, suggesting the synergistic anti-tumor role of the INO80 complex and miR372. Our results will provide a solid theoretical basis for exploring miR-372 as a biological marker of tumorigenesis.
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Affiliation(s)
- Junaid Ali Shah
- School of Life Sciences, Jilin University, Changchun 130012, China
| | - Yujuan Miao
- School of Life Sciences, Jilin University, Changchun 130012, China
| | - Jinmeng Chu
- School of Life Sciences, Jilin University, Changchun 130012, China
| | - Wenqi Chen
- School of Life Sciences, Jilin University, Changchun 130012, China
| | - Qingzhi Zhao
- School of Life Sciences, Jilin University, Changchun 130012, China
| | - Chengyu Cai
- School of Life Sciences, Jilin University, Changchun 130012, China
| | - Saadullah Khattak
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Fei Wang
- School of Life Sciences, Jilin University, Changchun 130012, China
| | - Jingji Jin
- School of Life Sciences, Jilin University, Changchun 130012, China
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Gallo Cantafio ME, Torcasio R, Viglietto G, Amodio N. Non-Coding RNA-Dependent Regulation of Mitochondrial Dynamics in Cancer Pathophysiology. Noncoding RNA 2023; 9:ncrna9010016. [PMID: 36827549 PMCID: PMC9964195 DOI: 10.3390/ncrna9010016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/07/2023] [Accepted: 02/18/2023] [Indexed: 02/22/2023] Open
Abstract
Mitochondria are essential organelles which dynamically change their shape and number to adapt to various environmental signals in diverse physio-pathological contexts. Mitochondrial dynamics refers to the delicate balance between mitochondrial fission (or fragmentation) and fusion, that plays a pivotal role in maintaining mitochondrial homeostasis and quality control, impinging on other mitochondrial processes such as metabolism, apoptosis, mitophagy, and autophagy. In this review, we will discuss how dysregulated mitochondrial dynamics can affect different cancer hallmarks, significantly impacting tumor growth, survival, invasion, and chemoresistance. Special emphasis will be given to emerging non-coding RNA molecules targeting the main fusion/fission effectors, acting as novel relevant upstream regulators of the mitochondrial dynamics rheostat in a wide range of tumors.
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Affiliation(s)
| | - Roberta Torcasio
- Department of Experimental and Clinical Medicine, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
- Laboratory of Cellular and Molecular Cardiovascular Pathophysiology, Department of Biology, Ecology and Earth Sciences (DiBEST), University of Calabria, Arcavacata di Rende, 87036 Cosenza, Italy
| | - Giuseppe Viglietto
- Department of Experimental and Clinical Medicine, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | - Nicola Amodio
- Department of Experimental and Clinical Medicine, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
- Correspondence:
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Luo M, Deng X, Chen Z, Hu Y. Circular RNA circPOFUT1 enhances malignant phenotypes and autophagy-associated chemoresistance via sequestrating miR-488-3p to activate the PLAG1-ATG12 axis in gastric cancer. Cell Death Dis 2023; 14:10. [PMID: 36624091 PMCID: PMC9829716 DOI: 10.1038/s41419-022-05506-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 12/01/2022] [Accepted: 12/08/2022] [Indexed: 01/11/2023]
Abstract
Circular RNAs are key regulators in regulating the progression and chemoresistance of gastric cancer (GC), suggesting circular RNAs as potential therapeutic targets for GC. The roles of a novel circular RNA circPOFUT1 in GC are unknown. Here, we found that circPOFUT1 was upregulated in GC tissues and cells, and increased circPOFUT1 expression indicated poor prognosis. Overexpression of circPOFUT1 enhanced cell proliferation, migration, invasion and autophagy-associated chemoresistance in GC, which were suppressed by miR-488-3p overexpression. CircPOFUT1 reduced miR-488-3p expression via sponging miR-488-3p in GC cells. PLAG1 interacted with ATG12 and promoted its expression. MiR-488-3p bound to PLAG1 and suppressed the expression of PLAG1 and ATG12 in GC cells. Overexpression of circPOFUT1 enhanced autophagy-associated chemoresistance of GC cells in vivo, but it was inhibited by overexpression of miR-488-3p. Collectively, circPOFUT1 directly sponged miR-488-3p to activate the expression of PLAG1 and ATG12, thus enhancing malignant phenotypes and autophagy-associated chemoresistance in GC. Our findings show the potential of circPOFUT1 as biomarkers and targeting circPOFUT1 as a therapeutic strategy for GC.
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Affiliation(s)
- Ming Luo
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan Province, China
| | - Xiaofeng Deng
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan Province, China
| | - Zonglin Chen
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan Province, China
| | - Yongjun Hu
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan Province, China.
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Han D, Zhu S, Li X, Li Z, Huang H, Gao W, Liu Y, Zhu H, Yu X. The NF-κB/miR-488/ERBB2 axis modulates pancreatic cancer cell malignancy and tumor growth through cell cycle signaling. Cancer Biol Ther 2022; 23:294-309. [PMID: 35343383 PMCID: PMC8966990 DOI: 10.1080/15384047.2022.2054257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 06/27/2021] [Accepted: 01/17/2022] [Indexed: 01/17/2023] Open
Abstract
Pancreatic cancer is one of the malignancies having the poorest prognosis due to late diagnoses and lack of efficient treatment regimens. The identification of potential miRNA-targeted gene axes could act as targets for developing novel treatment strategies. Herein, it was assessed that miR-488 expression was markedly downregulated within pancreatic carcinoma. Higher expression of miR-488 was shown to be linked to better prognosis rates of pancreatic carcinoma as per online data. Within two pancreatic tumor cells, MIA PaCa-2 and PANC-1, miR-488 overexpression significantly suppressed malignant cytological behavior by inhibiting cell viability, enhancing cell apoptosis, and inducing cell cycle G2/M-phase arrest. Moreover, miR-488 overexpression also decreased the protein levels of cell cycle regulators, including cyclin A, cyclin B, CDK1, and CDK2. miR-488 directly targets ERBB2 (receptor tyrosine-protein kinase2) to suppress the expression of ERBB2 by targeting its 3'UTR. ERBB2 knockdown in MIA PaCa-2 and PANC-1 cell lines suppressed, but miR-488 inhibition enhanced the cancer cell biological malignant behavior; the effects of miR-488 inhibition on pancreatic cancer cells were significantly reversed by ERBB2 knockdown. NF-κB suppressed the expression of miR-488 transcriptionally via targeting its promoter region, consequentially repressing the tumor-suppressive effects of miR-488 upon pancreatic tumor cells. Thus, an NF-κB/miR-488/ERBB2 axis modulating pancreatic cancer cell malignancy and tumor growth through cell cycle signaling was conclusively demonstrated.
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Affiliation(s)
- Duo Han
- Department of Hepatopancreatobiliary Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Shaihong Zhu
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Xia Li
- Department of Endocrinology, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Zhiqiang Li
- Department of Hepatopancreatobiliary Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Hui Huang
- Department of Hepatopancreatobiliary Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Wenzhe Gao
- Department of Hepatopancreatobiliary Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Yunfei Liu
- Department of Hepatopancreatobiliary Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Hongwei Zhu
- Department of Hepatopancreatobiliary Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Xiao Yu
- Department of Hepatopancreatobiliary Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, China
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Yang W, Yao Y, Yang S, Ke Y. Circular RNA hsa_circ_0008003 promotes the progression of non-small-cell lung cancer by sponging miR-548I and regulating KPNA4 expression. Thorac Cancer 2022; 14:544-554. [PMID: 36573325 PMCID: PMC9968600 DOI: 10.1111/1759-7714.14777] [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: 10/31/2022] [Revised: 12/05/2022] [Accepted: 12/07/2022] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVE The study aimed to explore the effect of circ_0008003 on the progression of non-small-cell lung cancer (NSCLC) and its underlying regulation mechanism. METHODS Expression of hsa_circ_0008003, miRNA (miR)-548I and karyopherin subunit α 4 (KPNA4) was examined by quantitative real-time polymerase chain reaction. Cell viability and proliferation ability were detected by cell counting kit-8 assay and 5-ethynyl-2'-deoxyuridine assay, respectively. Flow cytometry was performed to monitor cell apoptosis. Western blot assay was used to evaluate the protein levels of KPNA4, Bax, and Bcl-2. Cell migration and invasion were assessed by transwell assays. The targeted relationship between miR-548I and hsa_circ_0008003 or KPNA4 was confirmed by dual-luciferase reporter and RNA immunoprecipitation assays. Furthermore, the role of hsa_circ_0008003 in vivo was investigated by xenograft assay. RESULTS Circ_0008003 expression was increased in NSCLC tissues and cell lines. Circ_0008003 knockdown reduced cell viability, migration, invasion, angiogenesis, and caused apoptosis in NSCLC cells. Moreover, miR-548I was targeted by circ_0008003, and miR-548I knockdown reversed the influence of circ_0008003 silence on NSCLC progression. KPNA4 was targeted by miR-548I, and miR-548I overexpression suppressed cell viability, migration, invasion, angiogenesis, and promoted cell apoptosis via decreasing KPNA4. In addition, circ_0008003 regulated KPNA4 expression via miR-548I. Circ_0008003 knockdown decreased NSCLC cell growth in the xenograft model. CONCLUSION Circular RNA hsa_circ_0008003 promoted progression in NSCLC by sponging miR-548I and regulating KPNA4 expression, hinting that circ_0008003 participates in NSCLC pathogenesis.
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Affiliation(s)
- Wenshu Yang
- Department of Respiratory and Critical Care Medicine, Xiang Yang Central HospitalAffiliated Hospital of Hubei University of Arts and ScienceXiangyangChina
| | - Yingying Yao
- Department of Respiratory and Critical Care Medicine, Xiang Yang Central HospitalAffiliated Hospital of Hubei University of Arts and ScienceXiangyangChina
| | - Shuai Yang
- Department of Respiratory and Critical Care Medicine, Xiang Yang Central HospitalAffiliated Hospital of Hubei University of Arts and ScienceXiangyangChina
| | - Yaoqi Ke
- Department of Respiratory and Critical Care Medicine, Xiang Yang Central HospitalAffiliated Hospital of Hubei University of Arts and ScienceXiangyangChina
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Liu Y, Peng H, Shen Y, Da R, Tian A, Guo X. Downregulation of Long Noncoding RNA Myocardial Infarction Associated Transcript Suppresses Cell Proliferation, Migration, Invasion, and Glycolysis by Regulation of miR-488-3p/IGF1R Pathway in Colorectal Cancer. Cancer Biother Radiopharm 2022; 37:927-938. [PMID: 33085926 DOI: 10.1089/cbr.2020.3671] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background: Colorectal cancer (CRC) is a significant public problem and the third cause of cancer-induced death all over the world. Long noncoding RNA (lncRNA) has been reported as a vital mediator in human cancer. However, the precise role of lncRNA myocardial infarction associated transcript (MIAT) in CRC is unclear. Materials and Methods: The abundance of MIAT, miR-488-3p, and the type 1 insulin-like growth factor receptor (IGF1R) was measured by real-time quantitative polymerase chain reaction assay. Western blot assay was carried out to assess the protein level in CRC samples or control group. The cell activity, abilities of migration and invasion, and glycolysis were evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazol-3-ium bromide (MTT), transwell, and testing glucose consumption and lactate product, correspondingly. The target association between miR-488-3p, MIAT, or IGF1R was predicted and established by bioinformatics tools, dual-luciferase reporter, and RNA pull-down assays, correspondingly. The effects of MIAT silencing in vivo were analyzed by animal experiments. Results: LncRNA MIAT was upregulated in CRC sample and that was positively correlated with IGF1R expression. Loss-of-functional assay suggested that knockdown of MIAT impeded cell activity, migration, invasion, and glycolysis of CRC cells in vivo, along with xenograft growth in vivo. Moreover, silencing of IGF1R inhibited the progression of CRC. Therefore, overexpression of IGF1R could abolish silencing of MIAT-induced effects on CRC cells. Mechanistically, MIAT was a sponge for miR-488-3p, thereby regulating IGF1R expression in CRC. Conclusion: The present study confirmed that the "MIAT/miR-488-3p/IGF1R" pathway was involved in the development of CRC, which may be the target for developing therapeutic approaches for CRC.
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Affiliation(s)
- Yunhua Liu
- Department of Gastroenterology, the First People's Hospital of Tianmen, Hubei, China
| | - Huaiying Peng
- Department of Digestive Endoscopy Room, the First People's Hospital of Tianmen, Hubei, China
| | - Yongxiang Shen
- Department of Gastroenterology, the First People's Hospital of Tianmen, Hubei, China
| | - Rongfeng Da
- Department of Gastroenterology, the First People's Hospital of Tianmen, Hubei, China
| | - Aihua Tian
- Department of Gastroenterology, the First People's Hospital of Tianmen, Hubei, China
| | - Xiaomei Guo
- Department of Computerized Tomography and Magnetic Resonance Imaging Room, the First People's Hospital of Tianmen, Hubei, China
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11
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Elevation of microRNA-365 impedes malignant behaviors of gastric cancer cells by inhibiting PAX6. Funct Integr Genomics 2022; 22:825-834. [PMID: 35484308 DOI: 10.1007/s10142-022-00858-4] [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: 10/21/2021] [Revised: 04/02/2022] [Accepted: 04/04/2022] [Indexed: 11/04/2022]
Abstract
MicroRNA-365 (miR-365) has been revealed to be a vital regulator in tumorigenesis of multiple cancers, while there is a large gap in the knowledge about miR-365 expression and gastric cancer (GC). This research focused on the effects of miR-365 and paired box 6 (PAX6) on GC development. Levels of miR-365 and PAX6 in GC tissues and cell lines were determined, followed by the screening of the AGS and NCI-N87 cells. Gain- or loss-of-function assays were used to analyze the effect of miR-365, PAX6 on AGS and NCI-N87 cell behaviors. The effects of altered miR-365 and PAX6 on animal models were observed. Moreover, to assess the interaction between miR-365 and PAX6, we implemented the bioinformatic method and dual luciferase reporter gene assay. MiR-365 was decreased while PAX6 was increased in GC tissues and cell lines. There existed a negative association between miR-365 and PAX6. The promoted miR-365 could repress oncogenicity in vivo and malignant transformation in vitro of GC. PAX6 was the target gene of miR-365. Overexpression of PAX6 reversed the inhibitory effect of up-regulated miR-365 on malignant behavior of gastric cancer cells. Our research displays that the amplification of miR-365 could suppress the malignant behaviors of GC cells via inhibiting PAX6, which may be helpful for GC treatment.
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Bernardes JGB, Fernandes MR, Rodrigues JCG, Vinagre LWMS, Pastana LF, Dobbin EAF, Medeiros JAG, Dias Junior LB, Bernardes GM, Bernardes IMM, Santos NPCD, Demachki S, Burbano RMR. Association of Androgenic Regulation and MicroRNAs in Acinar Adenocarcinoma of Prostate. Genes (Basel) 2022; 13:genes13040622. [PMID: 35456428 PMCID: PMC9030213 DOI: 10.3390/genes13040622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/11/2022] [Accepted: 03/12/2022] [Indexed: 12/13/2022] Open
Abstract
Background: Prostate cancer represents 3.8% of cancer deaths worldwide. For most prostate cancer cells to grow, androgens need to bind to a cellular protein called the androgen receptor (AR). This study aims to demonstrate the expression of five microRNAs (miRs) and its influence on the AR formation in patients from the northern region of Brazil. Material and Methods: Eighty-four tissue samples were investigated, including nodular prostatic hyperplasia (NPH) and acinar prostatic adenocarcinoma (CaP). Five miRs (27a-3p, 124, 130a, 488-3p, and 506) were quantified using the TaqMan® Real Time PCR method and AR was measured using Western blotting. Results: Levels of miRs 124, 130a, 488-3p, and 506 were higher in NPH samples. Conversely, in the CaP cases, higher levels of miR 27a-3p and AR were observed. Conclusion: In the future, these microRNAs may be tested as markers of CaP at the serum level. The relative expression of AR was 20% higher in patients with prostate cancer, which suggests its potential as a biomarker for prostate malignancy.
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Affiliation(s)
- Julio Guilherme Balieiro Bernardes
- Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém 66050-160, Brazil; (J.G.B.B.); (L.B.D.J.); (I.M.M.B.)
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém 66073-005, Brazil; (J.C.G.R.); (L.W.M.S.V.); (L.F.P.); (E.A.F.D.); (J.A.G.M.); (N.P.C.D.S.); (S.D.); (R.M.R.B.)
| | - Marianne Rodrigues Fernandes
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém 66073-005, Brazil; (J.C.G.R.); (L.W.M.S.V.); (L.F.P.); (E.A.F.D.); (J.A.G.M.); (N.P.C.D.S.); (S.D.); (R.M.R.B.)
- Hospital Ophir Loyola, Belém 66063-240, Brazil
- Correspondence:
| | - Juliana Carla Gomes Rodrigues
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém 66073-005, Brazil; (J.C.G.R.); (L.W.M.S.V.); (L.F.P.); (E.A.F.D.); (J.A.G.M.); (N.P.C.D.S.); (S.D.); (R.M.R.B.)
| | - Lui Wallacy Morikawa Souza Vinagre
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém 66073-005, Brazil; (J.C.G.R.); (L.W.M.S.V.); (L.F.P.); (E.A.F.D.); (J.A.G.M.); (N.P.C.D.S.); (S.D.); (R.M.R.B.)
| | - Lucas Favacho Pastana
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém 66073-005, Brazil; (J.C.G.R.); (L.W.M.S.V.); (L.F.P.); (E.A.F.D.); (J.A.G.M.); (N.P.C.D.S.); (S.D.); (R.M.R.B.)
| | - Elizabeth Ayres Fragoso Dobbin
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém 66073-005, Brazil; (J.C.G.R.); (L.W.M.S.V.); (L.F.P.); (E.A.F.D.); (J.A.G.M.); (N.P.C.D.S.); (S.D.); (R.M.R.B.)
| | - Jéssyca Amanda Gomes Medeiros
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém 66073-005, Brazil; (J.C.G.R.); (L.W.M.S.V.); (L.F.P.); (E.A.F.D.); (J.A.G.M.); (N.P.C.D.S.); (S.D.); (R.M.R.B.)
| | - Leonidas Braga Dias Junior
- Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém 66050-160, Brazil; (J.G.B.B.); (L.B.D.J.); (I.M.M.B.)
| | | | | | - Ney Pereira Carneiro Dos Santos
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém 66073-005, Brazil; (J.C.G.R.); (L.W.M.S.V.); (L.F.P.); (E.A.F.D.); (J.A.G.M.); (N.P.C.D.S.); (S.D.); (R.M.R.B.)
| | - Samia Demachki
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém 66073-005, Brazil; (J.C.G.R.); (L.W.M.S.V.); (L.F.P.); (E.A.F.D.); (J.A.G.M.); (N.P.C.D.S.); (S.D.); (R.M.R.B.)
| | - Rommel Mario Rodriguez Burbano
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém 66073-005, Brazil; (J.C.G.R.); (L.W.M.S.V.); (L.F.P.); (E.A.F.D.); (J.A.G.M.); (N.P.C.D.S.); (S.D.); (R.M.R.B.)
- Hospital Ophir Loyola, Belém 66063-240, Brazil
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Sun M, Chen Y, Liu X, Cui Y. LncRNACASC9 promotes proliferation, metastasis, and cell cycle inovarian carcinoma cells through cyclinG1/TP53/MMP7 signaling. Bioengineered 2021; 12:8006-8019. [PMID: 34595994 PMCID: PMC8806755 DOI: 10.1080/21655979.2021.1981795] [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] [Indexed: 01/10/2023] Open
Abstract
Ovarian cancer (OC) brings about serious physical and psychological burden for female patients. LncRNA CASC9 has been reported to be intimately linked with the occurrence and development of several tumors. However, the biological role of lncRNA CASC9 in OC still lacks sufficient evidence. The expressions of CASC9 and miR-488-3p in OC cell lines and xenograft mice were detected by qRT-PCR assay. Cell Counting Kit-8 (CCK-8) assay was used to assess cell inhibition rate and cell proliferation in OVCAR-3 and OVCAR-3/DDP cells. Wound healing assay and transwell assay were performed to evaluate the capacity of migration and invasion, respectively. In addition, cell apoptosis was measured by TUNEL assay and cell cycle was assessed by flow cytometric analysis. Moreover, western blotting was carried out to detect the cyclinG1 (CCNG1)/TP53/MMP7 signaling and apoptosis-related proteins. Furthermore, luciferase reporter assay was performed to verify the combination of CASC9 with CCNG1 and miR-488-3p. The results of our study revealed that CASC9 expression was upregulated while miR-488-3p and CCNG1 expression was downregulated in OC cells with significant higher TP53 and MMP7 protein levels compared with normal ovarian surface epithelial cells. Additionally, luciferase reporter assay confirmed CASC9 bond to miR-488-3p/CCNG1. CASC9 silencing inhibited cell proliferation, migration, and invasion whereas promoted cell inhibition rate and apoptosis in vitro and in vivo. However, CASC9 overexpression showed the opposite effects. In summary, LncRNA CASC9 played a regulative role in ovarian carcinoma by cyclinG1/TP53/MMP7 signaling via binding to miR-488-3p in vivo and in vitro.
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Affiliation(s)
- Min Sun
- Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, Xi'an P.R.China
| | - Yanan Chen
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing P.R.China
| | - Xiaobei Liu
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing P.R.China
| | - Yajie Cui
- Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, Xi'an P.R.China
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Shah JA, Khattak S, Rauf MA, Cai Y, Jin J. Potential Biomarkers of miR-371-373 Gene Cluster in Tumorigenesis. Life (Basel) 2021; 11:life11090984. [PMID: 34575133 PMCID: PMC8465240 DOI: 10.3390/life11090984] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 12/12/2022] Open
Abstract
microRNAs (miRNAs) are small non-coding RNA transcripts (20–24 nucleotides) that bind to their complementary sequences in the 3′-untranslated regions (3′-UTR) of targeted genes to negatively or positively regulate their expression. miRNAs affect the expression of genes in cells, thereby contributing to several important biological processes, including tumorigenesis. Identifying the miRNA cluster as a human embryonic stem cell (hESC)-specific miRNAs initially led to the identification of miR-371, miR-372, miR-373, and miR-373*, which can ultimately be translated into mature miRNAs. Recent evidence suggests that miR-371–373 genes are abnormally expressed in various cancers and act either as oncogenes or tumor suppressors, indicating they may be suitable as molecular biomarkers for cancer diagnosis and prevention. In this article, we summarize recent studies linking miR-371–373 functions to tumorigenesis and speculate on the potential applications of miR-371–373 as biomarkers for cancer diagnosis and treatment.
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Affiliation(s)
- Junaid Ali Shah
- School of Life Sciences, Jilin University, Changchun 130012, China; (J.A.S.); (Y.C.)
| | - Saadullah Khattak
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China;
| | - Mohd Ahmar Rauf
- Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; or
| | - Yong Cai
- School of Life Sciences, Jilin University, Changchun 130012, China; (J.A.S.); (Y.C.)
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Jingji Jin
- School of Life Sciences, Jilin University, Changchun 130012, China; (J.A.S.); (Y.C.)
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun 130117, China
- Correspondence:
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15
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Zhang Y, He L, Huang L, Yao S, Lin N, Li P, Xu H, Wu X, Xu J, Lu Y, Li Y, Zhu S. Oncogenic PAX6 elicits CDK4/6 inhibitor resistance by epigenetically inactivating the LATS2-Hippo signaling pathway. Clin Transl Med 2021; 11:e503. [PMID: 34459131 PMCID: PMC8382979 DOI: 10.1002/ctm2.503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 07/04/2021] [Accepted: 07/11/2021] [Indexed: 12/13/2022] Open
Abstract
Intrinsic resistance to CDK4/6 inhibitors hinders their clinical utility in cancer treatment. Furthermore, the predictive markers of CDK4/6 inhibitors in gastric cancer (GC) remain incompletely described. Here, we found that PAX6 expression was negatively correlated with the response to palbociclib in vitro and in vivo in GC. We observed that the PAX6 expression level was negatively correlated with the overall survival of GC patients and further showed that PAX6 can promote GC cell proliferation and the cell cycle. The cell cycle is regulated by the interaction of cyclins with their partner serine/threonine cyclin-dependent kinases (CDKs), and the G1/S-phase transition is the main target of CDK4/6 inhibitors. Therefore, we tested whether PAX6 expression was correlated with the GC response to palbociclib. We found that PAX6 hypermethylates the promoter of LATS2 and inactivates the Hippo pathway, which upregulates cyclin D1 (CCND1) expression. This results in a suppressed response to palbociclib in GC. Furthermore, we found that the induction of the Hippo signaling pathway or treatment with a DNA methylation inhibitor could overcome PAX6-induced palbociclib resistance in GC. These findings uncover a tumor promoter function of PAX6 in GC and establish overexpressed PAX6 as a mechanism of resistance to palbociclib.
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Affiliation(s)
- Yi Zhang
- Department of Gastroenterology and Hepatology, the First Affiliated HospitalSun Yat‐sen UniversityNo.58 Zhongshan 2nd RoadGuangzhou510630China
- Department of Hepatobiliary surgery, the Third Affiliated HospitalSun Yat‐sen UniversityNo.600 Tian he RoadGuangzhou510630China
- Department of Hepatic surgery, the First Affiliated HospitalSun Yat‐sen UniversityNo.58 Zhongshan 2nd RoadGuangzhou510080China
| | - Long‐Jun He
- State Key Laboratory of Oncology in South ChinaCancer CenterSun Yat‐sen UniversityNo.651 Dongfeng Road EastGuangzhou510060China
| | - Lin‐Lin Huang
- Department of Gastroenterology and Hepatology, the First Affiliated HospitalSun Yat‐sen UniversityNo.58 Zhongshan 2nd RoadGuangzhou510630China
- Department of Gastroenterology and HepatologyGuangdong Provincial People's Hospital/Guangdong Academy of Medical
SciencesNo.106 Zhongshan 2nd RoadGuangzhou510080China
| | - Sheng Yao
- Department of Gastroenterology and Hepatology, the First Affiliated HospitalSun Yat‐sen UniversityNo.58 Zhongshan 2nd RoadGuangzhou510630China
| | - Nan Lin
- Department of Hepatobiliary surgery, the Third Affiliated HospitalSun Yat‐sen UniversityNo.600 Tian he RoadGuangzhou510630China
| | - Ping Li
- Department of Gastroenterology and Hepatology, the First Affiliated HospitalSun Yat‐sen UniversityNo.58 Zhongshan 2nd RoadGuangzhou510630China
| | - Hui‐Wen Xu
- Department of Gastroenterology and Hepatology, the First Affiliated HospitalSun Yat‐sen UniversityNo.58 Zhongshan 2nd RoadGuangzhou510630China
| | - Xi‐Wen Wu
- Department of Hepatic surgery, the First Affiliated HospitalSun Yat‐sen UniversityNo.58 Zhongshan 2nd RoadGuangzhou510080China
| | - Jian‐Liang Xu
- Department of Hepatobiliary surgery, the Third Affiliated HospitalSun Yat‐sen UniversityNo.600 Tian he RoadGuangzhou510630China
| | - Yi Lu
- Department of Hepatobiliary surgery, the Third Affiliated HospitalSun Yat‐sen UniversityNo.600 Tian he RoadGuangzhou510630China
| | - Yan‐Jie Li
- Department of Hepatobiliary surgery, the Third Affiliated HospitalSun Yat‐sen UniversityNo.600 Tian he RoadGuangzhou510630China
| | - Sen‐Lin Zhu
- Department of Gastroenterology and Hepatology, the First Affiliated HospitalSun Yat‐sen UniversityNo.58 Zhongshan 2nd RoadGuangzhou510630China
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MicroRNA-488 inhibits neural inflammation and apoptosis in spinal cord injury through restraint on the HMGB1/TLR4/NF-κB signaling pathway. Neuroreport 2021; 32:1017-1026. [PMID: 34102644 DOI: 10.1097/wnr.0000000000001680] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Secondary spinal cord injury (SCI), a reversible pathological change, involves neural inflammation and apoptosis. This study explored how microRNA (miR)-488, an inflammatory regulator as reported affected secondary SCI. METHODS In vivo, Wistar rats were clipped on the spinal cord for SCI induction. In vitro, PC-12 cells were treated with lipopolysaccharide (LPS) to induce cell injuries to mimic the environment during the secondary SCI. Cell viability and apoptosis were measured by CCK-8 assay and flow cytometry. The levels of inflammation-related factors (interleukin (IL)-6, IL-1β and tumor necrosis factor (TNF)-α) in the serum and PC-12 cells were determined by ELISA. The expressions of miR-488, high mobility group box 1 (HMGB1), B-cell lymphoma 2 (Bcl-2), Bcl-2-associated X protein (Bax), cleaved caspase-3, toll-like receptor 4 (TLR4), phosphorylated (p)-p65 and total-p65 in rat spinal cord or PC-12 cells were analyzed by quantitative reverse transcription PCR or western blot. RESULTS After SCI induction, rats exhibited low Basso-Beattie-Bresnahan scores, promoted the release of inflammation-related factors and downregulated miR-488. LPS treatment decreased cell viability, enhanced apoptosis and downregulated miR-488. Upregulating miR-488 neutralized LPS-induced releases of inflammation-related factors and expressions of Bax and cleaved caspase-3 and counteracted LPS-induced inhibition on Bcl-2 expression. MiR-488 directly targeted HMGB1 and miR-488 mimic decreased LPS-induced HMGB1 expression. Overexpressing HMGB1 counteracted miR-488 mimic-induced decreases in the expressions of TLR4 and p-p65 and the ratio of p-p65 to Total-p65 in LPS-treated PC-12 cells. CONCLUSION MiR-488 inhibited neural inflammation and apoptosis in SCI via its binding with HMGB1-mediated restraint on the TLR4/NF-κB signaling pathway.
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Bu J, Guo R, Xu XZ, Luo Y, Liu JF. LncRNA SNHG16 promotes epithelial-mesenchymal transition by upregulating ITGA6 through miR-488 inhibition in osteosarcoma. J Bone Oncol 2021; 27:100348. [PMID: 33598394 PMCID: PMC7868993 DOI: 10.1016/j.jbo.2021.100348] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 12/12/2020] [Accepted: 01/05/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Osteosarcoma is a primary cause of cancer-associated death in children and adolescents worldwide. Long non-coding RNAs SNHG16 (lncRNA SNHG16) and integrin subunit-a 6 (ITGA6) are recently reported to be involved in the tumorigenesis of osteosarcoma by multiple mechanisms. However, the correlation between SNHG16 and ITGA6 in osteosarcoma remains undetermined. METHODS Expression of miR-488, SNHG16 and ITGA6, as well as epithelial-mesenchymal transition (EMT) associated markers in osteosarcoma tissues and cell lines were examined by qRT-PCR or Western blotting. Effects of miR-488, SNHG16 and ITGA6 on cell migration, invasion were evaluated by wound-healing assay and transwell assay. Bioinformatics analysis and dual-luciferase reported assays were applied to assess the interaction among miR-488, SNHG16 and ITGA6. RNA immunoprecipitation (RIP) was also used to verify SNHG16 and miR-488 interaction. Finally, animal study was used to detect the effect of SNHG16 on osteosarcoma in vivo. RESULTS SNHG16 and ITGA6 were significantly increased while miR-488 was decreased in osteosarcoma. ITGA6 was screened as a target gene of miR-488, and SNHG16 was sponged by miR-488 in osteosarcoma cells. MiR-488 overexpression and SNHG16 knockdown suppressed migration, invasion and EMT of osteosarcoma cells. Moreover, rescue assays proved that the influences of SNHG16 on osteosarcoma cells migration, invasion and EMT were dependent on miR-488 and ITGA6. In addition, the promotive effects of SNHG16 on osteosarcoma tumor growth and metastasis were further supported by xenograft tumor growth assay. CONCLUSION SNHG16 promoted migration, invasion and EMT of osteosarcoma by sponging miR-488 to release ITGA6.
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Affiliation(s)
- Jie Bu
- Department of Orthopaedics, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan Province, People's Republic of China
| | - Ru Guo
- Department of Pediatrics, Maternal and Child Health Care Hospital of Hunan Province, Changsha 410008, Hunan Province, People's Republic of China
| | - Xue-Zheng Xu
- Department of Orthopaedics, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan Province, People's Republic of China
| | - Yi Luo
- Department of Orthopaedics, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan Province, People's Republic of China
| | - Jian-Fan Liu
- Department of Orthopaedics, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan Province, People's Republic of China
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Deng X, Li D, Ke X, Wang Q, Yan S, Xue Y, Wang Q, Zheng H. Mir-488 alleviates chemoresistance and glycolysis of colorectal cancer by targeting PFKFB3. J Clin Lab Anal 2020. [PMID: 32990355 DOI: 10.1002/jcla.23578.] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Considering the boosting effect of glycolysis on tumor chemoresistance, this investigation aimed at exploring whether miR-488/PFKFB3 axis might reduce drug resistance of colorectal cancer (CRC) by affecting glycolysis, proliferation, migration, and invasion of CRC cells. METHOD Totally, 288 CRC patients were divided into metastasis/recurrence group (n = 107) and non-metastasis/recurrence group (n = 181) according to their prognosis about 1 year after the chemotherapy, and their 3-year overall survival was also tracked. Besides, miR-488 expression was determined in peripheral blood of CRC patients and also in CRC cell lines (ie, W620, HT-29, Lovo, and HCT116). The targeted relationship between miR-488 and PFKFB3 was predicted by Targetscan software and confirmed by dual-luciferase reporter gene assay. Moreover, glycolysis and drug tolerance of CRC cells lines were assessed. RESULTS MiR-488 expression was significantly decreased in metastatic/recurrent CRC patients than those without metastasis/recurrence (P < .05), and lowly expressed miR-488 was suggestive of unfavorable 3-year survival, large tumor size, poor differentiation, in-depth infiltration, and advanced Duke stage of CRC patients (P < .05). Besides, CRC cell lines transfected by miR-488 mimic demonstrated decreases in glucose uptake and lactate secretion, increases in oxaliplatin/5-Fu-sensistivity, as well as diminished capability of proliferating, invading, and migratory (P < .05), which were reversible by extra transfection of pcDNA3.1-PFKFB3 (ie, miR-488 mimic + pcDNA3.1-PFKFB3 group). Finally, the mRNA level of PFKFB3 was down-regulated by miR-488 mimic in CRC cell lines after being targeted by it (P < .05). CONCLUSION The miR-488/PFKFB3 axis might clinically refine chemotherapeutic efficacy of CRC, given its modifying glycolysis and metastasis of CRC cells.
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Affiliation(s)
- Xiaojing Deng
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Dapeng Li
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Xiquan Ke
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Qizhi Wang
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Shanjun Yan
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Yongju Xue
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Qiangwu Wang
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Hailun Zheng
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
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Deng X, Li D, Ke X, Wang Q, Yan S, Xue Y, Wang Q, Zheng H. Mir-488 alleviates chemoresistance and glycolysis of colorectal cancer by targeting PFKFB3. J Clin Lab Anal 2020; 35:e23578. [PMID: 32990355 PMCID: PMC7843269 DOI: 10.1002/jcla.23578] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 07/03/2020] [Accepted: 07/23/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Considering the boosting effect of glycolysis on tumor chemoresistance, this investigation aimed at exploring whether miR-488/PFKFB3 axis might reduce drug resistance of colorectal cancer (CRC) by affecting glycolysis, proliferation, migration, and invasion of CRC cells. METHOD Totally, 288 CRC patients were divided into metastasis/recurrence group (n = 107) and non-metastasis/recurrence group (n = 181) according to their prognosis about 1 year after the chemotherapy, and their 3-year overall survival was also tracked. Besides, miR-488 expression was determined in peripheral blood of CRC patients and also in CRC cell lines (ie, W620, HT-29, Lovo, and HCT116). The targeted relationship between miR-488 and PFKFB3 was predicted by Targetscan software and confirmed by dual-luciferase reporter gene assay. Moreover, glycolysis and drug tolerance of CRC cells lines were assessed. RESULTS MiR-488 expression was significantly decreased in metastatic/recurrent CRC patients than those without metastasis/recurrence (P < .05), and lowly expressed miR-488 was suggestive of unfavorable 3-year survival, large tumor size, poor differentiation, in-depth infiltration, and advanced Duke stage of CRC patients (P < .05). Besides, CRC cell lines transfected by miR-488 mimic demonstrated decreases in glucose uptake and lactate secretion, increases in oxaliplatin/5-Fu-sensistivity, as well as diminished capability of proliferating, invading, and migratory (P < .05), which were reversible by extra transfection of pcDNA3.1-PFKFB3 (ie, miR-488 mimic + pcDNA3.1-PFKFB3 group). Finally, the mRNA level of PFKFB3 was down-regulated by miR-488 mimic in CRC cell lines after being targeted by it (P < .05). CONCLUSION The miR-488/PFKFB3 axis might clinically refine chemotherapeutic efficacy of CRC, given its modifying glycolysis and metastasis of CRC cells.
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Affiliation(s)
- Xiaojing Deng
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Dapeng Li
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Xiquan Ke
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Qizhi Wang
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Shanjun Yan
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Yongju Xue
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Qiangwu Wang
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Hailun Zheng
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, Anhui, China
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20
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García-Martínez A, Fuentes-Fayos AC, Fajardo C, Lamas C, Cámara R, López-Muñoz B, Aranda I, Luque RM, Picó A. Differential Expression of MicroRNAs in Silent and Functioning Corticotroph Tumors. J Clin Med 2020; 9:jcm9061838. [PMID: 32545591 DOI: 10.3390/jcm9061838] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 06/04/2020] [Accepted: 06/09/2020] [Indexed: 02/07/2023] Open
Abstract
The potential role of miRNAs in the silencing mechanisms of pituitary neuroendocrine tumors (PitNETs) has not been addressed. The aim of the present study was to evaluate the expression levels and the potential associated role of some miRNAs, pathways, and transcription factors in the silencing mechanisms of corticotroph tumors (CTs). Accordingly, the expression of miR-375, miR-383, miR-488, miR-200a and miR-103; of PKA, MAP3K8, MEK, MAPK3, NGFIB, NURR1, PITX1, and STAT3 were analyzed via qRT-PCR in 23 silent and 24 functioning CTs. miR-200a and miR-103 showed significantly higher expression in silent than in functioning CTs, even after eliminating the bias of tumor size, therefore enabling the differentiation between the two variants. Additionally, miR-383 correlated negatively with TBX19 in silent CTs, a transcription factor related with the processing of POMC that can participate in the silencing mechanisms of CTs. Finally, the gene expression levels of miR-488, miR-200a, and miR-103 were significantly higher in macroadenomas (functioning and silent) than in microadenomas. The evidence from this study indicates that miRNAs could be involved in the pathophysiology of CTs. The translational implications of these findings suggest that pharmacological treatments specifically targeting these miRNAs could become a promising therapeutic option for these patients.
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Affiliation(s)
- Araceli García-Martínez
- Research Laboratory, Alicante General University Hospital-Institute for Health and Biomedical Research (ISABIAL), CIBERER, 03010 Alicante, Spain
| | - Antonio C Fuentes-Fayos
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), 14004 Córdoba, Spain
- Department of Cell Biology Physiology and Immunology, University of Cordoba, 14004 Córdoba, Spain
- Hospital Universitario Reina Sofía, 14004 Córdoba, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), 14004 Córdoba, Spain
| | - Carmen Fajardo
- Endocrinology Department, Hospital Universitario de La Ribera, 46600 Alzira, Valencia, Spain
| | - Cristina Lamas
- Endocrinology Department, Complejo Hospitalario Universitario de Albacete, 02006 Albacete, Spain
| | - Rosa Cámara
- Endocrinology Department, Hospital Universitario y Politécnico La Fe, 46026 Valencia, Spain
| | - Beatriz López-Muñoz
- Endocrinology Department, Alicante General University Hospital-ISABIAL, 03010 Alicante, Spain
| | - Ignacio Aranda
- Pathology Department, Alicante General University Hospital-ISABIAL, 03010 Alicante, Spain
| | - Raúl M Luque
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), 14004 Córdoba, Spain
- Department of Cell Biology Physiology and Immunology, University of Cordoba, 14004 Córdoba, Spain
- Hospital Universitario Reina Sofía, 14004 Córdoba, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), 14004 Córdoba, Spain
| | - Antonio Picó
- Endocrinology Department, Alicante General University Hospital-ISABIAL, Miguel Hernández University, CIBERER, 03010 Alicante, Spain
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21
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Transcriptional suppression of androgen receptor by 18β-glycyrrhetinic acid in LNCaP human prostate cancer cells. Arch Pharm Res 2020; 43:433-448. [PMID: 32219716 DOI: 10.1007/s12272-020-01228-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 03/19/2020] [Indexed: 12/28/2022]
Abstract
Androgen receptor (AR) plays a pivotal role as a target for amplification/mutation in pathogenesis and tumor progression in prostate, and thus, controlling AR activity or expression might be a feasible therapeutic approach for the treatment of prostate cancer. Here, we report the novel mechanisms by which 18β-glycyrrhetinic acid (GA) targets AR to stimulate cell death in both hormone-responsive and -refractory prostate cancer cells. We found that miR-488, a tumor suppressive microRNA, was markedly induced by GA treatment, resulting in the down-regulation of AR expression and inhibition of cellular responses mediated by androgens. Moreover, GA not only suppressed the expression of androgen target genes (TMPRSS2, PSA, and NKX3.1), but also enhanced the suppressive effect of anti-androgens (bicalutamide and flutamide) on LNCaP cell growth. Our data further provides evidence that down-regulation of AR expression by GA may occur through transcriptional suppression at AR promoter region between - 1014 and - 829. Ectopic expression of SFR and E2F3α reversed the inhibitory effect of GA on AR promoter activity as well as protein expression, suggesting that GA may target transcription factors SRF and E2F3α to regulate AR expression. Taken together, our study provides new insights on AR regulation and GA as a potential therapeutic candidate for human prostate cancer.
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22
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Hao Y, Zhang D, Guo Y, Fu Z, Yu D, Guan G. miR-488-3p sponged by circ-0000495 and mediated upregulation of TROP2 in head and neck squamous cell carcinoma development. J Cancer 2020; 11:3375-3386. [PMID: 32231744 PMCID: PMC7097962 DOI: 10.7150/jca.40339] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 02/06/2020] [Indexed: 12/17/2022] Open
Abstract
TROP2 (trophoblast cell surface antigen 2) overexpression has been reported in many human cancers. The correlation between TROP2 and tumor aggressiveness has implied it could be a prognostic indicator. However, the roles of TROP2 and their underlying mechanisms remain of great interest in head and neck squamous cell carcinoma (HNSCC) biology. In the current study, the prognostic significance of TROP2 in HNSCC archival samples was determined using immunohistochemistry. Quantitative reverse transcriptase PCR (qRT-PCR) was used to measure the phenotypic effects of TROP2 knockdown, miR-488-3p re-expression, and circRNAs expression. Cell viability, migration/invasion as well as in vivo tumor formation assays were accessed. The interactions of miRNAs-TROP2 or circRNAs-miRNAs were determined by qRT-PCR, western blot analysis and luciferase assays. TROP2 was demonstrated overexpression in HNSCC patients and cancer cell lines. High expression of TROP2 was significantly associated with patient relapse. TROP2 promoted tumor cell proliferation, migration, invasion, and tumor growth, through AKT and MAPK pathways. Further investigation revealed that TROP2 is a direct target of miR-488-3p, while circ-0000495 bounds to miR-488-3p. Our study unraveled a novel mechanism by which down-regulation of miR-488-3p sponged by circ-0000495 releases its epigenetic silencing to TROP2. The increased TROP2 promotes tumor proliferation, therefore, providing evidence in support of targeting the circ-0000495/miR-488-3p/TROP2 axis in contributing to HNSCC therapy and preventing tumor metastasis.
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Affiliation(s)
- Yanru Hao
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - Dejun Zhang
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - Yingyuan Guo
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - Zeming Fu
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - Duojiao Yu
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - Guofang Guan
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital of Jilin University, Changchun 130041, P. R. China
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23
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miR-488-5p and its role in melanoma. Exp Mol Pathol 2019; 112:104348. [PMID: 31765608 DOI: 10.1016/j.yexmp.2019.104348] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 10/07/2019] [Accepted: 11/21/2019] [Indexed: 12/31/2022]
Abstract
Due to their ability to regulate dozens to hundreds of target genes simultaneously and, therefore, influence several oncogenic pathways at the same time, microRNAs are a fascinating research object in melanoma. MicroRNAs have been identified as regulators of tumor proliferation, invasion and metastasis in melanoma. More precisely, it has been published that dysregulation of miR-488 contibutes to the progression of several cancer entities. However, the biological functions of miR-488, in special miR-488-5p in melanoma, remain unclear. This study showed the involvement of miR-488-5p in Wnt/β-catenin pathway and the function as a tumor suppressor. Transfection of miR-488-5p mimic led to inhibition of proliferation, migration, anchorage independent growth and led to induction of apoptosis. These data indicated that miR-488-5p acts as a tumor suppressor and is lost during melanoma development. The loss of miR-488-5p was confirmed in vivo by in situ hybridization on melanoma tissue.
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24
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Wang Q, Wang J, Niu S, Wang S, Liu Y, Wang X. MicroRNA-664 targets paired box protein 6 to inhibit the oncogenicity of pancreatic ductal adenocarcinoma. Int J Oncol 2019; 54:1884-1896. [PMID: 30896829 DOI: 10.3892/ijo.2019.4759] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 02/20/2019] [Indexed: 11/06/2022] Open
Abstract
The abnormal expression of microRNAs (miRNAs or miRs) with oncogenic or tumor‑suppressive roles in pancreatic ductal adenocarcinoma (PDAC) has been widely reported in recent years, and these dysregulated miRNAs are implicated in the formation and progression of PDAC. Therefore, an investigation into the functional roles of miRNAs in PDAC may facilitate the identification of effective therapeutic targets. miRNA‑664 (miR‑664) has been found to be aberrantly expressed and to play crucial roles in several human cancer types. However, the expression pattern and functional roles of miR‑664 in the malignant capacity of PDAC have yet to be elucidated. In this study, the results revealed that miR‑664 was clearly downregulated in PDAC tissues and cell lines. The low miR‑664 expression was strongly associated with pathological T stage and lymph node metastasis of the patients with PDAC. Patients with PDAC with a low miR‑664 expression had a poorer overall survival and a worse disease‑free survival than those patients with a high miR‑664 level. Functional experiments suggested that exogenous miR‑664 expression suppressed the growth and metastasis of PDAC cells in vitro, whereas miR‑664 downregulation exerted the opposite effects. In addition, miR‑664 suppressed the tumor growth of PDAC cells in vivo. Mechanistically, paired box protein 6 (PAX6) was identified as a direct target gene of miR‑664 in PDAC cells. Furthermore, PAX6 was upregulated in PDAC tissues, and its upregulation inversely correlated with miR‑664 levels. Moreover, the silencing of PAX6 mimicked the effects of miR‑664 upregulation in PDAC cells, and the recovered expression of PAX6 eliminated the effects of miR‑664 on PDAC cells. Notably, miR‑664 could inhibit the activation of PI3K/Akt pathway in PDAC cells in vitro and in vivo. Cumulatively, these results indicate an important role of the miR‑664/PAX6 pathway in suppressing the aggressiveness of PDAC cells, suggesting that miR‑664 may be an attractive therapeutic target for the treatment of patients with this fatal disease.
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Affiliation(s)
- Qi Wang
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
| | - Jiaqi Wang
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
| | - Songtao Niu
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
| | - Songsong Wang
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
| | - Yibin Liu
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
| | - Xiaoya Wang
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
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25
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Wu XZ, Cui HP, Lv HJ, Feng L. Knockdown of lncRNA PVT1 inhibits retinoblastoma progression by sponging miR-488-3p. Biomed Pharmacother 2019; 112:108627. [PMID: 30797143 DOI: 10.1016/j.biopha.2019.108627] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 01/12/2019] [Accepted: 01/24/2019] [Indexed: 12/31/2022] Open
Abstract
Emerging evidence suggests that long non-coding RNAs (lncRNAs) play a regulatory role in the pathogenesis and progression of retinoblastoma (RB). lncRNA plasmacytoma variant translocation 1 (PVT1) is highly expressed in a plenty of tumors, and is believed to serve as an oncogene. However, the expression, roles, and action mechanisms of PVT1 in the carcinogenesis and progression of RB are still largely unknown. In this study, we found that PVT1 was upregulated in RB tissues and cell lines. PVT1 levels correlated with optic nerve invasion, and intraocular international retinoblastoma classify (IIRC) stage. In addition, the results demonstrated that patients with RB who showed higher expression of PVT1 had worse overall survivals. In WERI-Rb1 and Y79 cells, PVT1 silencing significantly inhibited cell proliferation, migration, invasion, and cell cycle progression and induced cell apoptosis in vitro. Moreover, in vivo xenograft assay indicated that PVT1 knockdown suppressed the tumor volume and tumor weight. The analysis of the mechanisms of action revealed that the reduction of PVT1 inhibited the expression of notch2 by upregulating miR-488-3p. In general, our results demonstrated that PVT1 may be a novel biomarker for prognosis and a new target for the treatment of RB.
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Affiliation(s)
- Xue-Zhi Wu
- Department of Ophthalmology, Zhumadian Central Hospital, Henan Province, 463000, China.
| | - Hong-Pei Cui
- Department of Ophthalmology, Henan Eye Hospital & Henan Eye Institute, Henan Provincial People's Hospital, Henan Province, 450003, China
| | - Hai-Jiang Lv
- Henan University of Traditional Chinese Medicine, Zhengzhou, Henan Province, 450046, China
| | - Lei Feng
- Department of Ophthalmology, The Third Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan Province, 450008, China
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26
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Zhu H, Cao XX, Liu J, Hua H. MicroRNA-488 inhibits endometrial glandular epithelial cell proliferation, migration, and invasion in endometriosis mice via Wnt by inhibiting FZD7. J Cell Mol Med 2019; 23:2419-2430. [PMID: 30729701 PMCID: PMC6433721 DOI: 10.1111/jcmm.14078] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 11/07/2018] [Accepted: 11/13/2018] [Indexed: 12/12/2022] Open
Abstract
Endometriosis is a chronic inflammatory syndrome and nearly 6%‐10% of women are affected by it during the reproductive period. Previous studies have proved that microRNAs (miRNAs) are implicated in the pathogenesis of ovarian endometriosis. In this study, we aimed to investigate that restored miR‐488 would effectively inhibit the development of endometriosis. The microarray‐based data analysis was performed to screen endometriosis‐related differentially expressed genes (DEGs). The mouse model in endometriosis syndrome was established by being subcutaneously injected with Estradiol benzoate, and the ectopic endometrial tissues and normal endometrial tissues were collected. Additionally, the endometrial glandular epithelial cells were extracted from the endometrial glandular epithelial tissues from normal and endometriosis mice. In order to examine the role of miR‐488 in mice with endometriosis, we measured miR‐488 expression and expression levels of Frizzled‐7 (FZD7), cyclinD1, β‐catenin, and c‐Myc in vivo and in vitro. Finally, we detected the effect of miR‐488 on cell proliferation, apoptosis, migration and invasion in vitro. FZD7 was upregulated in human endometriosis. The data showed higher expression levels of FZD7, β‐catenin, c‐Myc and cyclinD1, and lower miR‐488 expression in mouse endometrial tissues. FZD7 was the target gene of miR‐488. Furthermore, elevated miR‐488 in isolated mouse endometrial glandular endometrial cells inhibited FZD7, the translocation of β‐catenin to nucleus, the activation of Wnt pathway, and the cell proliferation, migration and invasion. Collectively, these findings indicated that up‐regulated miR‐488 may reduce the proliferation, migration and invasion of endometrial glandular epithelial cells through inhibiting the activation of Wnt pathway by down‐regulating FZD7.
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Affiliation(s)
- Hui Zhu
- Department of Reproductive Health, Nanjing Maternity and Child Health Care Hospital, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, P. R. China
| | - Xi-Xia Cao
- Department of Reproductive Health, Nanjing Maternity and Child Health Care Hospital, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, P. R. China
| | - Juan Liu
- Department of Gynecology, Nanjing Maternity and Child Health Care Hospital, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, P. R. China
| | - Hua Hua
- Department of Reproductive Health, Nanjing Maternity and Child Health Care Hospital, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, P. R. China
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27
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Yan L, Wu K, Du F, Yin X, Guan H. miR-384 suppressed renal cell carcinoma cell proliferation and migration through targeting RAB23. J Cell Biochem 2019; 120:1420-1426. [PMID: 30390327 DOI: 10.1002/jcb.27180] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 05/24/2018] [Indexed: 01/24/2023]
Abstract
microRNAs (miRNAs) are noncoding, short, and endogenous RNAs that play crucial roles in tumor progression at the post-transcriptional level. Here, we studied the role of miR-384 in the pathogenesis of renal cell carcinoma (RCC). We demonstrated that miR-384 expression was downregulated in the RCC specimens compared with nontumor specimens. Moreover, we showed that RAB23 expression was upregulated in the RCC tissues compared with nontumor tissues. Furthermore, we demonstrated that low expression of miR-384 was correlated with high levels of RAB23 in RCC tissues. We also demonstrated that the RAB23 was a direct target gene of miR-384 in RCC cells. In addition, overexpression of miR-384 suppressed RCC cell proliferation, cell cycle, and cell migration. Furthermore, ectopic expression of RAB23 promoted RCC cell proliferation, cell cycle, and cell migration. These data suggested that miR-384 played a tumor suppressor microRNA in the development of RCC partly through inhibiting RAB23 expression.
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Affiliation(s)
- Lihua Yan
- Department of Medical Oncology, Nanyang Second People's Hospital, Nanyang, Henan, China
| | - Kunxiang Wu
- Department of Orthopaedic Surgery, Nanyang Second People's Hospital, Nanyang, Henan, China
| | - Feng Du
- Department of Medical Oncology, Nanyang Second People's Hospital, Nanyang, Henan, China
| | - Xianzhe Yin
- Department of Medical Oncology, Nanyang Second People's Hospital, Nanyang, Henan, China
| | - Hongmei Guan
- Department of Medical Oncology, Nanyang Second People's Hospital, Nanyang, Henan, China
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Klec C, Gutschner T, Panzitt K, Pichler M. Involvement of long non-coding RNA HULC (highly up-regulated in liver cancer) in pathogenesis and implications for therapeutic intervention. Expert Opin Ther Targets 2019; 23:177-186. [PMID: 30678498 DOI: 10.1080/14728222.2019.1570499] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION HULC (highly upregulated in liver cancer) is a long non-coding RNA (lncRNA) which is, as its name suggests, highly upregulated in hepatocellular carcinoma and in several other cancers. Increased HULC expression levels are strongly associated with clinicopathologic features such as tumor stages and overall survival and is a driver of tumor proliferation, migration, and invasion. Areas covered: This review addresses the discovery of HULC and discusses the consequences of HULC deregulation in cancer, the underlying molecular mechanisms and the potential of HULC as a biomarker and therapeutic target. Expert opinion: HULC is a promising candidate as a therapeutic target in cancer; however, more studies are necessary to further elucidate the underlying molecular mechanism(s), especially in cancer types other than hepatocellular carcinomas. Future studies that focus on an optimized HULC-targeting approach are necessary to clarify the best strategy to target this lncRNA in vivo and in patients.
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Affiliation(s)
- Christiane Klec
- a Division of Oncology, Department of Internal Medicine , Medical University of Graz (MUG) , Graz , Austria.,b Research Unit for Non-coding RNAs and Genome Editing , Medical University of Graz (MUG) , Graz , Austria
| | - Tony Gutschner
- c Faculty of Medicine , Martin-Luther-University Halle-Wittenberg , Halle , Germany
| | - Katrin Panzitt
- d Department of Hepatology and Gastroenterology , Medical University of Graz (MUG) , Graz , Austria
| | - Martin Pichler
- a Division of Oncology, Department of Internal Medicine , Medical University of Graz (MUG) , Graz , Austria.,b Research Unit for Non-coding RNAs and Genome Editing , Medical University of Graz (MUG) , Graz , Austria.,e Department of Experimental Therapeutics , The University of Texas MD Anderson Cancer Center , Houston , TX , USA
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29
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Zhang S, Wang Q, Li D, Huang B, Hou X, Wang D. MicroRNA‑509 targets PAX6 to inhibit cell proliferation and invasion in papillary thyroid carcinoma. Mol Med Rep 2018; 19:1403-1409. [PMID: 30569166 DOI: 10.3892/mmr.2018.9750] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 09/28/2018] [Indexed: 11/05/2022] Open
Abstract
MicroRNAs (miRNAs/miRs) negatively regulate the expression of numerous genes and therefore contribute to the occurrence and development of papillary thyroid carcinoma (PTC). Hence, further investigation into the specific roles of miRNAs in PTC is valuable for developing effective therapeutic methods for patients with this disease. MiRNA‑509 is dysregulated and serves pivotal roles in several types of human cancer; however, the expression and roles of miR‑509 in PTC and its underlying mechanism require further investigation. In the present study, the expression of miR‑509 in PTC tissues and cell lines was detected and the specific functions of miR‑509 in the progression of PTC were investigated. Additionally, the molecular mechanisms underlying the action of miR‑509 in PTC were determined. The present study demonstrated that miR‑509 was significantly downregulated in PTC tissues and cell lines. MiR‑509 upregulation inhibited the PTC cell proliferation and invasion. Mechanistically, paired box 6 (PAX6) was identified as a novel target of miR‑509 in PTC cells. In clinical PTC samples, miR‑509 was significantly overexpressed and inversely correlated with PAX6 expression. PAX6 restoration effectively reversed the inhibitory effects of miR‑509 overexpression on PTC cell proliferation and invasion. These results demonstrated that miR‑509 may act as a tumor suppressor in PTC by directly targeting PAX6. Thus, miR‑509 may be a potential therapeutic target for the treatment of patients with PTC.
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Affiliation(s)
- Shuilong Zhang
- Department of Thyroid Surgery, Shanxi Provincial People's Hospital, Taiyuan, Shanxi 030012, P.R. China
| | - Qiang Wang
- Department of Thyroid Surgery, Shanxi Provincial People's Hospital, Taiyuan, Shanxi 030012, P.R. China
| | - Dewei Li
- Department of Thyroid Surgery, Shanxi Provincial People's Hospital, Taiyuan, Shanxi 030012, P.R. China
| | - Bo Huang
- Department of Gastrointestinal Pancreas, Hernia and Abdominal Wall Surgery, Shanxi Provincial People's Hospital, Taiyuan, Shanxi 030012, P.R. China
| | - Xia Hou
- Department of Chest Radiotherapy, Tumor Hospital of Shanxi Province, Taiyuan, Shanxi 030012, P.R. China
| | - Dongliang Wang
- Department of Thyroid Surgery, Shanxi Provincial People's Hospital, Taiyuan, Shanxi 030012, P.R. China
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30
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Wang YB, Shi Q, Li G, Zheng JH, Lin J, Qiu W. MicroRNA-488 inhibits progression of colorectal cancer via inhibition of the mitogen-activated protein kinase pathway by targeting claudin-2. Am J Physiol Cell Physiol 2018; 316:C33-C47. [PMID: 30207785 DOI: 10.1152/ajpcell.00047.2018] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Colorectal cancer (CRC) affects people globally, and lymph node metastasis (LNM) is an important indicator of poor clinical outcome in CRC. The current study aims to evaluate the role of microRNA-448 (miR-488) and claudin-2 (CLDN2) in epithelial-mesenchymal transition (EMT) and LNM of CRC through the MAPK signaling pathway. First, microarray analysis indicated that miR-488 was poorly expressed in CRC, whereas CLDN2 was highly expressed. Additionally, the bioinformatics website MicroRNA.org and the dual luciferase reporter gene assay found that CLDN2 was a target gene of miR-488. Next, the results for the correlations between expression of miR-488 and clinicopathological characteristics of CRC indicated that the expression of miR-488 was closely associated with differentiation degree, LNM, and Dukes stages in CRC patients. Moreover, overexpression of miR-488 inhibited the activation of the MAPK signal transduction pathway. Notably, loss- and gain-of-function experiments demonstrated that upregulation of miR-488 suppressed SW480 cell viability, invasion, and migration and promoted apoptosis in SW480 cells. Finally, overexpression of miR-488 inhibited LNM, microlymphatic vessel density, and tumor growth in nude mice. We conclude that overexpression of miR-488 could suppress the cell proliferation, EMT, and LNM of CRC cells via inhibition of the CLDN2-mediated MAPK signaling pathway, which could be a new molecular therapy target for CRC.
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Affiliation(s)
- Yong-Bing Wang
- Department of General Surgery, Shanghai University of Medicine and Health Sciences Affiliated Pudong New District People's Hospital , Shanghai , People's Republic of China
| | - Quan Shi
- Department of General Surgery, Shanghai University of Medicine and Health Sciences Affiliated Pudong New District People's Hospital , Shanghai , People's Republic of China
| | - Gang Li
- Department of General Surgery, Shanghai University of Medicine and Health Sciences Affiliated Pudong New District People's Hospital , Shanghai , People's Republic of China
| | - Jun-Hua Zheng
- Department of General Surgery, Shanghai University of Medicine and Health Sciences Affiliated Pudong New District People's Hospital , Shanghai , People's Republic of China
| | - Jie Lin
- Department of General Surgery, Shanghai University of Medicine and Health Sciences Affiliated Pudong New District People's Hospital , Shanghai , People's Republic of China
| | - Wei Qiu
- Department of General Surgery, Shanghai University of Medicine and Health Sciences Affiliated Pudong New District People's Hospital , Shanghai , People's Republic of China
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Yu D, Zhao X, Cheng JZ, Wang D, Zhang HH, Han GH. Downregulated microRNA-488 enhances odontoblast differentiation of human dental pulp stem cells via activation of the p38 MAPK signaling pathway. J Cell Physiol 2018; 234:1442-1451. [PMID: 30132853 DOI: 10.1002/jcp.26950] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Accepted: 06/13/2018] [Indexed: 12/31/2022]
Abstract
Human dental pulp stem cells (hDPSCs) are primarily derived from the pulp tissues of permanent third molar teeth. They were widely used in human bone tissue engineering. It was previously indicated that microRNA (miR) expressions are closely associated with hDPSCs development. However, the specific effect of miR-488 on hDPSCs still remains unclear. In this study, we aimed to investigate effects of miR-488 on the differentiation of hDPSCs into odontoblast cells through the p38 mitogen-activated protein kinases (MAPK) signaling pathway by binding to MAPK1. The hDPSCs were isolated and cultured in vitro. Dual-luciferase reporter gene assay was performed to test the relationship between MAPK1 (p38) and miR-488. Reverse transcription quantitative polymerase chain reaction and western blot analysis were used to detect the mRNA and protein expressions of p38 MAPK signaling pathway-related genes (MAPK1, Ras, and Mitogen-activated protein kinase kinase 3/6 [MKK3/6]), along with expressions of dentin Sialophosphoprotein (DSPP), alkaline phosphatase (ALP), and osteonectin (OCN). ALP staining and alizarin red staining were conducted to detect ALP activity and degree of mineralization. Initially, we found that MAPK1 was the target gene of miR-488. Besides, downregulation of miR-488 was observed to stimulate the p38 MAPK signaling pathway and to increase the messenger RNA and protein expressions of DSPP, ALP, and OCN. Furthermore, ALP activity and formation of a mineralized nodule in hDPSCs were enhanced upon downregulation of miR-488. The aforementioned findings provided evidence supporting that downregulation of miR-488 promotes odontoblastic differentiation of hDPSCs through the p38 MAPK signaling pathway by targeting MAPK1, paving the basis for further study about hDPSCs.
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Affiliation(s)
- Dan Yu
- Department of Otolaryngology-Head and Neck Surgery, The Second Hospital, Jilin University, Changchun, China
| | - Xue Zhao
- Department of Otolaryngology-Head and Neck Surgery, The Second Hospital, Jilin University, Changchun, China
| | - Jin-Zhang Cheng
- Department of Otolaryngology-Head and Neck Surgery, The Second Hospital, Jilin University, Changchun, China
| | - Di Wang
- Department of Otolaryngology-Head and Neck Surgery, The Second Hospital, Jilin University, Changchun, China
| | - Hui-Hui Zhang
- Department of Otolaryngology-Head and Neck Surgery, The Second Hospital, Jilin University, Changchun, China
| | - Guang-Hong Han
- Department of Oral Geriatrics, School and Hospital of Stomatology, Jilin University, Changchun, China
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Arvidsson Y, Rehammar A, Bergström A, Andersson E, Altiparmak G, Swärd C, Wängberg B, Kristiansson E, Nilsson O. miRNA profiling of small intestinal neuroendocrine tumors defines novel molecular subtypes and identifies miR-375 as a biomarker of patient survival. Mod Pathol 2018; 31:1302-1317. [PMID: 29487354 DOI: 10.1038/s41379-018-0010-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 12/08/2017] [Accepted: 12/08/2017] [Indexed: 12/30/2022]
Abstract
The aim of this study was to define the miRNA profile of small intestinal neuroendocrine tumors and to search for novel molecular subgroups and prognostic biomarkers. miRNA profiling was conducted on 42 tumors from 37 patients who underwent surgery for small intestinal neuroendocrine tumors. Unsupervised hierarchical clustering analysis of miRNA profiles identified two groups of tumor metastases, denoted cluster M1 and M2. The smaller cluster M1 was associated with shorter overall survival and contained tumors with higher grade (WHO grade G2/3) and multiple chromosomal gains including gain of chromosome 14. Tumors of cluster M1 had elevated expression of miR-1246 and miR-663a, and reduced levels of miR-488-3p. Pathway analysis predicted Wnt signaling to be the most significantly altered signaling pathway between clusters M1 and M2. Analysis of miRNA expression in relation to tumor proliferation rate showed significant alterations including downregulation of miR-137 and miR-204-5p in tumors with Ki67 index above 3%. Similarly, tumor progression was associated with significant alterations in miRNA expression, e.g. higher expression of miR-95 and miR-210, and lower expression of miR-378a-3p in metastases. Pathway analysis predicted Wnt signaling to be altered during tumor progression, which was supported by decreased nuclear translocation of β-catenin in metastases. Survival analysis revealed that downregulation of miR-375 was associated with shorter overall survival. We performed in situ hybridization on biopsies from an independent cohort of small intestinal neuroendocrine tumors using tissue microarrays. Expression of miR-375 was found in 578/635 (91%) biopsies and survival analysis confirmed that there was a correlation between downregulation of miR-375 in tumor metastases and shorter patient survival. We conclude that miRNA profiling defines novel molecular subgroups of metastatic small intestinal neuroendocrine tumors and identifies miRNAs associated with tumor proliferation rate and progression. miR-375 is highly expressed in small intestinal neuroendocrine tumors and may be used as a prognostic biomarker.
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Affiliation(s)
- Yvonne Arvidsson
- Sahlgrenska Cancer Center, Department of Pathology and Genetics, Institute of Biomedicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden.
| | - Anna Rehammar
- Department of Mathematical Sciences, Chalmers University of Technology, Gothenburg, Sweden
| | - Anders Bergström
- Sahlgrenska Cancer Center, Department of Pathology and Genetics, Institute of Biomedicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Ellinor Andersson
- Sahlgrenska Cancer Center, Department of Pathology and Genetics, Institute of Biomedicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Gülay Altiparmak
- Sahlgrenska Cancer Center, Department of Pathology and Genetics, Institute of Biomedicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Christina Swärd
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Bo Wängberg
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Erik Kristiansson
- Department of Mathematical Sciences, Chalmers University of Technology, Gothenburg, Sweden
| | - Ola Nilsson
- Sahlgrenska Cancer Center, Department of Pathology and Genetics, Institute of Biomedicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
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Liu B, Shyr Y, Cai J, Liu Q. Interplay between miRNAs and host genes and their role in cancer. Brief Funct Genomics 2018; 18:255-266. [PMID: 30785618 PMCID: PMC6609535 DOI: 10.1093/bfgp/elz002] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 11/21/2018] [Accepted: 01/23/2019] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs (miRNAs) are small endogenous non-coding functional RNAs that post-transcriptionally regulate gene expression. They play essential roles in nearly all biological processes including cell development and differentiation, DNA damage repair, cell death as well as intercellular communication. They are highly involved in cancer, acting as tumor suppressors and/or promoters to modulate cell proliferation, epithelial-mesenchymal transition and tumor invasion and metastasis. Recent studies have shown that more than half of miRNAs are located within protein-coding or non-coding genes. Intragenic miRNAs and their host genes either share the promoter or have independent transcription. Meanwhile, miRNAs work as partners or antagonists of their host genes by fine-tuning their target genes functionally associated with host genes. This review outlined the complicated relationship between intragenic miRNAs and host genes. Focusing on miRNAs known as oncogenes or tumor suppressors in specific cancer types, it studied co-expression relationships between these miRNAs and host genes in the cancer types using TCGA data sets, which validated previous findings and revealed common, tumor-specific and even subtype-specific patterns. These observations will help understand the function of intragenic miRNAs and further develop miRNA therapeutics in cancer.
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Affiliation(s)
- Baohong Liu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Yu Shyr
- Center for Quantitative Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jianping Cai
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Qi Liu
- Center for Quantitative Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, USA
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Qiu J, Zhang Y, Chen H, Guo Z. MicroRNA-488 inhibits proliferation, invasion and EMT in osteosarcoma cell lines by targeting aquaporin 3. Int J Oncol 2018; 53:1493-1504. [PMID: 30015825 PMCID: PMC6086618 DOI: 10.3892/ijo.2018.4483] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 06/06/2018] [Indexed: 02/06/2023] Open
Abstract
It has been reported that aquaporin 3 (AQP3) expression is associated with the progression of numerous types of cancer and microRNA (miRNA/miR) processing. However, the effects and precise mechanisms of AQP3 in osteosarcoma (OS) have not been fully elucidated. The present study aimed to investigate the interaction between AQP3 and miR-488 in OS. The reverse transcription-quantitative polymerase chain reaction (RT-qPCR) assay was performed to detect the levels of AQP3 and miR-488 in OS tissues and cell lines, respectively. Cell proliferation, invasion and epithelial-mesenchymal transition (EMT) were detected to analyze the biological functions of miR-488 and AQP3 in OS cells. Furthermore, mRNA and protein levels of AQP3 was measured by RT-qPCR and western blot analysis. Furthermore, AQP3 was validated as an miR-488 target using luciferase assays in OS cells. The present study revealed that the miR-488 level was significantly downregulated in OS tissues and cell lines, and that the expression of AQP3 was markedly increased. Notable, the low miR-488 expression level was associated with upregulated AQP3 expression in OS tissues. Furthermore, introduction of miR-488 markedly suppressed the proliferation, invasion and EMT of OS cells. However, miR-488-knockdown increased the proliferation, invasion and EMT of OS cells. The present study demonstrated that miR-488 could directly target AQP3 using bioinformatics analysis and luciferase reporter assays. In addition, AQP3-silencing had similar effects to miR-488 overexpression on OS cells. Overexpression of AQP3 in OS cells partially reversed the inhibitory effects of miR-488 mimic. miR-488 inhibited the proliferation, invasion and EMT of OS cells by directly downregulating AQP3 expression, and miR-488 targeting AQP3 was responsible for inhibition of the proliferation, invasion and EMT of OS cells.
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Affiliation(s)
- Jing Qiu
- Department of Administration, Cangzhou Central Hospital, Cangzhou, Hebei 061000, P.R. China
| | - Yongzhi Zhang
- Department of Radiology, Cangzhou Central Hospital, Cangzhou, Hebei 061000, P.R. China
| | - Hu Chen
- Department of Scientific Research, Cangzhou Central Hospital, Cangzhou, Hebei 061000, P.R. China
| | - Zhi Guo
- Department of Human Resources, Cangzhou Central Hospital, Cangzhou, Hebei 061000, P.R. China
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Shi B, Yan W, Liu G, Guo Y. MicroRNA-488 inhibits tongue squamous carcinoma cell invasion and EMT by directly targeting ATF3. Cell Mol Biol Lett 2018; 23:28. [PMID: 29946339 PMCID: PMC6006839 DOI: 10.1186/s11658-018-0094-0] [Citation(s) in RCA: 24] [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: 04/09/2018] [Accepted: 06/05/2018] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND It has been reported that the expression of activating transcription factor 3 (ATF3) is closely associated with both microRNA (miRNA) processing and the progress of many cancers. Our study aimed to explore the interaction between ATF3 and miR-488 in tongue squamous cell carcinoma (TSCC). METHODS Quantitative real-time PCR was performed to detect the levels of ATF3 and miR-488 in TSCC tissues and cell lines. Cell invasion and epithelial-mesenchymal transition (EMT) were assessed to determine the biological functions of miR-488 and ATF3 in TSCC cells. The mRNA and protein levels of ATF3 were measured using quantitative RT-PCR and western blotting. Luciferase assays were performed to validate ATF3 as an miR-488 target in TSCC cells. RESULTS We found that the level of miR-488 significantly decreased and the expression of ATF3 significantly increased in TSCC tissues and cell lines. A low level of miR-488 was closely associated with increased expression of ATF3 in TSCC tissues. Introducing miR-488 significantly inhibited the invasion and EMT of TSCC cells, and knockdown of miR-488 promoted both processes. The bioinformatics analysis predicted that ATF3 is a potential target gene of miR-488. The luciferase reporter assay showed that miR-488 could directly target ATF3. ATF3 silencing had similar effects to miR-488 overexpression on TSCC cells. Overexpression of ATF3 in TSCC cells partially reversed the inhibitory effects of the miR-488 mimic. CONCLUSION miR-488 inhibited cell invasion and EMT of TSCC cells by directly downregulating ATF3 expression.
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Affiliation(s)
- Bingxia Shi
- Oral and Maxillofacial Surgery, Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou, Hebei 061000 People’s Republic of China
| | - Wei Yan
- Oral and Maxillofacial Surgery, Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou, Hebei 061000 People’s Republic of China
| | - Guolin Liu
- Oral and Maxillofacial Surgery, Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou, Hebei 061000 People’s Republic of China
| | - Yanjun Guo
- Oral and Maxillofacial Surgery, Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou, Hebei 061000 People’s Republic of China
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Generation of a PAX6 knockout glioblastoma cell line with changes in cell cycle distribution and sensitivity to oxidative stress. BMC Cancer 2018; 18:496. [PMID: 29716531 PMCID: PMC5930953 DOI: 10.1186/s12885-018-4394-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 04/17/2018] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND The transcription factor PAX6 is expressed in various cancers. In anaplastic astrocytic glioma, PAX6 expression is inversely related to tumor grade, resulting in low PAX6 expression in Glioblastoma, the highest-grade astrocytic glioma. The aim of the present study was to develop a PAX6 knock out cell line as a tool for molecular studies of the roles PAX6 have in attenuating glioblastoma tumor progression. METHODS The CRISPR-Cas9 technique was used to knock out PAX6 in U251 N cells. Viral transduction of a doxycycline inducible EGFP-PAX6 expression vector was used to re-introduce (rescue) PAX6 expression in the PAX6 knock out cells. The knock out and rescued cells were rigorously characterized by analyzing morphology, proliferation, colony forming abilities and responses to oxidative stress and chemotherapeutic agents. RESULTS The knock out cells had increased proliferation and colony forming abilities compared to wild type cells, consistent with clinical observations indicating that PAX6 functions as a tumor-suppressor. Cell cycle distribution and sensitivity to H2O2 induced oxidative stress were further studied, as well as the effect of different chemotherapeutic agents. For the PAX6 knock out cells, the percentage of cells in G2/M phase increased compared to PAX6 control cells, indicating that PAX6 keeps U251 N cells in the G1 phase of the cell cycle. Interestingly, PAX6 knock out cells were more resilient to H2O2 induced oxidative stress than wild type cells. Chemotherapy treatment is known to generate oxidative stress, hence the effect of several chemotherapeutic agents were tested. We discovered interesting differences in the sensitivity to chemotherapeutic drugs (Temozolomide, Withaferin A and Sulforaphane) between the PAX6 expressing and non-expressing cells. CONCLUSIONS The U251 N PAX6 knock out cell lines generated can be used as a tool to study the molecular functions and mechanisms of PAX6 as a tumor suppressor with regard to tumor progression and treatment of glioblastoma.
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Wei X, Yu L, Kong X. miR-488 inhibits cell growth and metastasis in renal cell carcinoma by targeting HMGN5. Onco Targets Ther 2018; 11:2205-2216. [PMID: 29713189 PMCID: PMC5912367 DOI: 10.2147/ott.s156361] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Purpose microRNAs are thought to play crucial roles in tumorigenesis. Dysregulation of miR-488 has been implicated to be involved in several cancer progressions. However, the biological functions of miR-488 in renal cell carcinoma (RCC) remain unclear. This study aimed to explore the molecular mechanism underlying the role of miR-488 in RCC development. Materials and methods The expression levels of miR-488 were detected in 38 paired RCC tumor samples and cell lines by quantitative real-time polymerase chain reaction method. miR-488 was upregulated by mimics transfection in RCC cell lines. MTT, colony formation, transwell assay, flow cytometry assay, and a xenograft model were performed to determine cell proliferation, invasion, migration, epithelial-to-mesenchymal transition, and apoptosis in vitro and in vivo. Moreover, the potential target of miR-488 was verified by dual-luciferase reporter assay, quantitative real-time polymerase chain reaction, and Western blot. The correlation between miR-488 expression and its target gene expression was confirmed by Spearman’s correlation analysis in 38 selected RCC tissue samples. Results We found that miR-488 was remarkably downregulated in human RCC samples and cell lines compared with paired normal tissues and cell lines. Functional investigations revealed that overexpression of miR-488 significantly suppressed cell proliferation, invasion, and migration, and promoted cell apoptosis in RCC cells. Nucleosome binding protein 1 (high-mobility group nucleosome binding domain 5 [HMGN5]) was identified as a direct target of miR-488, and an inverse relationship was found between miR-488 expression and HMGN5 mRNA levels in RCC specimens. Rescue experiments suggested that restoration of HMGN5 partially abolished miR-488-mediated cell proliferation and invasion inhibition in RCC cells through regulating phosphatidylinositol 3-kinase/protein kinase B/the mammalian target of rapamycin and epithelial-to-mesenchymal transition signaling pathways. Conclusion These data indicated that miR-488 acted as a tumor suppressor in RCC proliferation and invasion by targeting HMGN5, which might provide potential therapeutic biomarker for RCC patients.
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Affiliation(s)
- Xin Wei
- Department of Urology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Lili Yu
- Department of Urology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Xiangbo Kong
- Department of Urology, China-Japan Union Hospital of Jilin University, Changchun, China
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Yan F, Tu Z, Duan L, Wang D, Lin F. MicroRNA-383 suppresses cell proliferation and invasion in colorectal cancer by directly targeting paired box 6. Mol Med Rep 2018; 17:6893-6901. [PMID: 29512711 DOI: 10.3892/mmr.2018.8682] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 11/09/2017] [Indexed: 12/16/2022] Open
Abstract
Colorectal cancer (CRC) is the third-most prevalent cancer and the fourth‑most common cause of cancer-associated fatality worldwide. The expression and biological roles of microRNAs (miRNAs/miRs) in tumourigenesis, and their regulatory function in a number of biological processes correlated with cancer have been investigated. miR‑383 has been reported to be deregulated in several human cancer types. However, the involvement and effects of miR‑383 on CRC progression and its underlying mechanism remain unknown. Therefore, the present study aimed to examine miR‑383 expression, investigate the biological functions of miR‑383 and identify its mechanism of action in CRC cells. In the present study, miR‑383 was significantly downregulated in CRC tissues and cell lines. Low miR‑383 expression was negatively associated with tumour size, lymph node metastasis and TNM stage. Function experiments demonstrated that miR‑383 upregulation inhibited the proliferation and invasion of CRC cells. Paired box 6 (PAX6) was confirmed as a direct target of miR‑383. PAX6 was upregulated in CRC tissues and was negatively correlated with miR‑383 expression. Induced PAX6 overexpression effectively rescued the tumour‑suppressing roles of miR‑383 on CRC cell proliferation and invasion. These findings suggested that miR‑383 may act as a tumour suppressor in CRC by directly targeting PAX6 and may serve as a promising therapeutic target for CRC treatment.
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Affiliation(s)
- Fei Yan
- Department of Oncology, The Eighth People's Hospital of Shanghai, Shanghai 200233, P.R. China
| | - Zhiquan Tu
- Department of Oncology, The Eighth People's Hospital of Shanghai, Shanghai 200233, P.R. China
| | - Li Duan
- Department of Oncology, The Eighth People's Hospital of Shanghai, Shanghai 200233, P.R. China
| | - Dexing Wang
- Department of Oncology, The Eighth People's Hospital of Shanghai, Shanghai 200233, P.R. China
| | - Feng Lin
- Department of Oncology, The Eighth People's Hospital of Shanghai, Shanghai 200233, P.R. China
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Xue W, Chen J, Liu X, Gong W, Zheng J, Guo X, Liu Y, Liu L, Ma J, Wang P, Li Z, Xue Y. PVT1 regulates the malignant behaviors of human glioma cells by targeting miR-190a-5p and miR-488-3p. Biochim Biophys Acta Mol Basis Dis 2018; 1864:1783-1794. [PMID: 29501773 DOI: 10.1016/j.bbadis.2018.02.022] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 02/04/2018] [Accepted: 02/27/2018] [Indexed: 12/17/2022]
Abstract
The long non-coding RNA (lncRNA) PVT1 is reported to be involved in tumorigenesis and the progression of many malignancies. However, the function of PVT1 in gliomas remains unclarified. The present study demonstrated the expression level of PVT1 using qRT-PCR. The role of PVT1 in the regulation of biological behaviors of glioma cells was investigated using CCK-8 assay, Transwell assay and flow cytometry. The possible molecular mechanisms were also elucidated. In our results, PVT1 was up-regulated in glioma specimens and cell lines. Knockdown of PVT1 impaired the malignant behaviors of glioma cells via the suppression of proliferation, migration and invasion, as well as through promotion of apoptosis. Furthermore, PVT1 was identified to affect the glioma cells via binding to miR-190a-5p and miR-488-3p, which were down-regulated and played tumor suppressor roles in glioma cells. Up-regulated miR-190a-5p or miR-488-3p partially rescued the suppressive effect induced by PVT1 knockdown. Myocyte enhancer factor 2C (MEF2C) was a direct downstream target of miR-190a-5p and miR-488-3p, which was proved to be an oncogene and involved in the PVT1 knockdown induced regulation of biological behaviors of glioma cells. Over-expression of MEF2C up-regulated JAGGED1 by increasing the promoter activity of JAGGED1. PVT1 knockdown combined with miR-190a-5p and miR-488-3p over-expression contributed to the smallest tumor volume and the longest survivals in nude mice. In conclusion, PVT1-miR-190a-5p/miR-488-3p-MEF2C-JAGGED1 axis is involved in proliferation and progression of glioma. Thus, PVT1 may become a novel target in glioma therapy.
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Affiliation(s)
- Weishuang Xue
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Jiajia Chen
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China; Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, People's Republic of China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, People's Republic of China
| | - Wei Gong
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China; Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, People's Republic of China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, People's Republic of China
| | - Xu Guo
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China; Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, People's Republic of China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China; Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, People's Republic of China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, People's Republic of China
| | - Libo Liu
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Jun Ma
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Ping Wang
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Zhen Li
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China; Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, People's Republic of China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, People's Republic of China
| | - Yixue Xue
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China.
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40
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Zhao YX, Liu HC, Ying WY, Wang CY, Yu YJ, Sun WJ, Liu JF. microRNA‑372 inhibits proliferation and induces apoptosis in human breast cancer cells by directly targeting E2F1. Mol Med Rep 2017; 16:8069-8075. [PMID: 28944922 PMCID: PMC5779890 DOI: 10.3892/mmr.2017.7591] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 04/19/2017] [Indexed: 12/23/2022] Open
Abstract
Breast cancer is the most prevalent cancer and the leading cause of cancer-associated mortalities among women worldwide today. Accumulating evidence suggested that miR-372 may serve important roles in the initiation and development of various human cancers. However, the role of miR-372 in breast cancer remains unknown. The present study demonstrated that the expression level of miR-372 in human breast cancer tissues and cell lines is significantly reduced compared with normal breast tissues cell lines. Furthermore, results of functional assays indicated that miR-372 inhibits cell proliferation and induces apoptosis in the MCF-7 human breast cancer cell line. E2F1 was identified as a direct functional target of miR-372 in breast cancer. In conclusion, the findings revealed that miR-372 may have the potential to act as a novel molecule for the diagnosis and therapy of patients with breast cancer.
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Affiliation(s)
- Ya-Xin Zhao
- Department of General Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Hua-Cheng Liu
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Wei-Yang Ying
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Cheng-Yu Wang
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Yao-Jun Yu
- Department of General Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Wei-Jian Sun
- Department of General Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Jie-Fan Liu
- Department of General Practice, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
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41
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microRNA-488 inhibits chemoresistance of ovarian cancer cells by targeting Six1 and mitochondrial function. Oncotarget 2017; 8:80981-80993. [PMID: 29113360 PMCID: PMC5655255 DOI: 10.18632/oncotarget.20941] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 07/12/2017] [Indexed: 02/06/2023] Open
Abstract
Dysregulation of miR-488 has been implicated in several human cancers. In this study, we aim to explore its expression and biological function in ovarian cancers. We found miR-488 expression was downregulated in ovarian cancer tissues. Using CCK8 and colony formation assay showed that miR-488 inhibited SKOV3 cell proliferation and colony formation, with downregulation of cyclin D1 and cyclin E protein. While miR-488 inhibitor promoted OVCAR3 cell growth and colony formation. Cell viability and Annexin V/PI staining showed that miR-488 downregulated cell survival and increased apoptosis rate when treated with cisplatin and paclitaxel. Further experiments using MitoTracker and JC-1 staining indicated that miR-488 regulated mitochondrial fission/fusion balance and inhibited mitochondrial membrane potential, with p-Drp1, Drp1 and Fis1 downregulation. Luciferase reporter assay showed that Six1 is a target of miR-488. We also found a negative association between Six1 and miR-488 in ovarian cancer tissues. In addition, Six1 overexpression induced mitochondrial fission and increased mitochondrial potential, with upregulation of Drp1 signaling. Six1 depletion showed the opposite effects. Restoration of Six1 in SKOV3 cells rescued decreased p-Drp1 and Drp1 expression induced by miR-488 mimic. Six1 plasmid also reversed the effects of miR-488 on chemoresistance and apoptosis. Taken together, the present study showed that, by targeting Six1, miR-488 inhibits chemoresistance of ovarian cancer cells through regulation of mitochondrial function.
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Lv Y, Shi Y, Han Q, Dai G. Histone demethylase PHF8 accelerates the progression of colorectal cancer and can be regulated by miR-488 in vitro. Mol Med Rep 2017; 16:4437-4444. [PMID: 28765946 PMCID: PMC5647003 DOI: 10.3892/mmr.2017.7130] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 04/19/2017] [Indexed: 12/22/2022] Open
Abstract
Plant homeo domain finger protein 8 (PHF8), as an oncogene, has been highlighted in cancer development and progression. However, its clinical significance and underlying molecular mechanisms in colorectal cancer (CRC) remain to be fully elucidated. In the present study, the role of PHF8 in the progression of CRC was investigated. The mRNA and protein levels of PHF8 in tissues from patients with CRC and cell lines were detected using the reverse transcription-quantitative polymerase chain reaction and western blotting, respectively. Cell viability was analyzed using an MTT assay. The targeted genes were predicted using a bioinformatics algorithm and confirmed by a dual luciferase reporter assay. Cell migration was evaluated using a Transwell assay. The results demonstrated that the expression of PHF8 was significantly increased in tumor tissues from patients with CRC and was correlated with tumor‑node‑metastasis stage. In addition, it was found that overexpressed PHF8 was a predictor of poor overall survival rates in patients with CRC. PHF8 loss‑of‑function significantly inhibited proliferation and migration, and promoted apoptosis of CRC cells. In addition, bioinformatics methods demonstrated that PHF8 was a putative target of microRNA (miR)‑488, and miR‑488 was able to inhibit the expression of PHF8 in CRC cells. miR‑488 loss‑of‑function showed increased proliferation and migration, and these effects were reversed by sh‑PHF8 transfection in CRC cells. In vitro and in vivo experiments revealed that PHF8 accelerated cancer cell growth and migration, confirming the oncogenic role of PHF8 in human CRC. In conclusion, PHF8 and miR‑488 may serve as CRC biomarkers for the prediction of clinical outcome and provide a target for the diagnosis and therapy of CRC.
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Affiliation(s)
- Yao Lv
- Department of Oncology, Chinese PLA General Hospital, Beijing 100853, P.R. China
| | - Yan Shi
- Department of Oncology, Chinese PLA General Hospital, Beijing 100853, P.R. China
| | - Quanli Han
- Department of Oncology, Chinese PLA General Hospital, Beijing 100853, P.R. China
| | - Guanghai Dai
- Department of Oncology, Chinese PLA General Hospital, Beijing 100853, P.R. China
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Li N, Ma Y, Ma L, Guan Y, Ma L, Yang D. MicroRNA-488-3p sensitizes malignant melanoma cells to cisplatin by targeting PRKDC. Cell Biol Int 2017; 41:622-629. [PMID: 28328082 DOI: 10.1002/cbin.10765] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Accepted: 03/19/2017] [Indexed: 11/11/2022]
Abstract
Deregulation of microRNAs (miRNAs) has been implicated in drug resistance in various types of cancers, including malignant melanoma (MM). MiR-488-3p has been reported as a tumor suppressor in several cancers. However, the exact expression patterns of miR-488-3p and the precise molecular mechanisms underlying its role in MM remain largely unknown and require further investigation. In this study, we demonstrated that miR-488-3p is significantly downregulated in MM clinical specimens and cell lines. Ectopic expression of miR-488-3p resulted in markedly increased drug sensitivity of MM cells in vitro and in vivo. The DNA-activated, catalytic polypeptide (PRKDC), which encodes DNA-dependent protein kinase catalytic subunit (DNA-PKcs), was identified as a direct target of miR-488-3p using luciferase reporter assays, qRT-PCR, and western blotting analyses. PRKDC knockdown by small interfering RNA (siRNA) alone promoted sensitivity of MM cells to cisplatin (DDP) while overexpression of PRKDC partially rescued the miR-488-3p-mediated acceleration of sensitivity to DDP in MM cells. Taken together, our results indicate that miR-488-3p serves as a drug resistance sensitizer in MM, supporting its potential as a promising therapeutic candidate.
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Affiliation(s)
- Ning Li
- Department of Plastic Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China
| | - Yue Ma
- Harbin Center for Disease Control and Prevention, Harbin, 150020, China
| | - Li Ma
- Computer Center, Fifth Hospital of Harbin, Harbin, 150030, China
| | - Yu Guan
- Animal and Plant Laboratory, Inspection and Quarantine Bureau of Heihe, Heihe, 164300, China
| | - Liang Ma
- Computer Center, Fifth Hospital of Harbin, Harbin, 150030, China
| | - Daping Yang
- Department of Plastic Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China
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Overexpression of Transforming Acidic Coiled Coil‑Containing Protein 3 Reflects Malignant Characteristics and Poor Prognosis of Glioma. Int J Mol Sci 2017; 18:ijms18030235. [PMID: 28273854 PMCID: PMC5372487 DOI: 10.3390/ijms18030235] [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: 11/23/2016] [Revised: 01/10/2017] [Accepted: 01/13/2017] [Indexed: 12/16/2022] Open
Abstract
Gliomas are malignant primary brain tumors with poor prognosis. Recently, research was indicative of a tight connection between tumor malignancy and genetic alterations. Here, we propose an oncogenic implication of transforming acidic coiled-coil-containing protein 3 (TACC3) in gliomas. By comprehensively analyzing the Chinese glioma genome atlas (CGGA) and publicly available data, we demonstrated that TACC3 were overexpressed along with glioma grade and served as an independent negative prognostic biomarker for glioma patients. Functions’ annotations and gene sets’ enrichment analysis suggested that TACC3 may participate in cell cycle, DNA repair, epithelium-mesenchymal transition and other tumor-related biological processes and molecular pathways. Patients with high TACC3 expression showed CD133+ stem cell properties, glioma plasticity and shorter overall survival time under chemo-/radio-therapy. Additionally, a TACC3 associated the miRNA-mRNA network was constructed based on in silico prediction and expression pattern, which provide a foundation for further detection of TACC3-miRNA-mRNA axis function. Collectively, our observations identify TACC3 as an oncogene of tumor malignancy, as well as a prognostic and motoring biomarker for glioma patients.
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Fang C, Chen YX, Wu NY, Yin JY, Li XP, Huang HS, Zhang W, Zhou HH, Liu ZQ. MiR-488 inhibits proliferation and cisplatin sensibility in non-small-cell lung cancer (NSCLC) cells by activating the eIF3a-mediated NER signaling pathway. Sci Rep 2017; 7:40384. [PMID: 28074905 PMCID: PMC5225486 DOI: 10.1038/srep40384] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 12/06/2016] [Indexed: 12/11/2022] Open
Abstract
Our previous studied indicated that eukaryotic translation initiation factor 3a (eIF3a) increases the sensitive of platinum-based chemotherapy in lung cancer. MiRNAs play an important role in lung carcinogenesis and drug response. In this study, we aimed to identify potential endogenous miRNAs that inhibit eIF3a expression and determine their influence of this inhibition on cisplatin resistance. Using bioinformatics analysis prediction and confirmation with dual-luciferase reporter assays, we found that miRNA-488 inhibited eIF3a expression by directly binding to the 3’UTR of eIF3a. In addition, the overexpression of miRNA-488 inhibited cell migration and invasion in A549 cells, and also inhibited cell proliferation, cell cycle progression by elevated P27 expression. Compared to the parental cell line, A549/cisplatin (DDP) resistant cells exhibited a higher level of miRNA-488. Moreover, we found that miRNA-488 was associated with cisplatin resistance in three NSCLC cells (A549, H1299 and SK-MES-1). The mechanism of miRNA-488 induced cisplatin resistance was that miRNA-488 activated nucleotide excision repair (NER) by increasing the expression of Replication Protein A (RPA) 14 and Xeroderma pigmentosum group C (XPC). In conclusion, our results demonstrated that miRNA-488 is a tumor suppressor miRNA that acts by targeting eIF3a. Moreover, miRNA-488 also participates in eIF3a mediated cisplatin resistance in NSCLC cells.
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Affiliation(s)
- Chao Fang
- Departments of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, P. R. China.,Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, P. R. China
| | - Yi-Xin Chen
- Departments of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, P. R. China.,Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, P. R. China
| | - Na-Yiyuan Wu
- Departments of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, P. R. China.,Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, P. R. China
| | - Ji-Ye Yin
- Departments of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, P. R. China.,Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, P. R. China
| | - Xiang-Ping Li
- Departments of Pharmacy, Xiangya Hospital, Central South University, Changsha 410008, P. R. China
| | - Hsuan-Shun Huang
- Department of Research, Cervical Cancer Prevention Center, Tzu Chi University, Hualien 970, Taiwan, Republic of China
| | - Wei Zhang
- Departments of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, P. R. China.,Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, P. R. China
| | - Hong-Hao Zhou
- Departments of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, P. R. China.,Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, P. R. China.,Hunan Province Cooperation Innovation Center for Molecular Target New Drug Study, Hengyang 421001, P. R. China
| | - Zhao-Qian Liu
- Departments of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, P. R. China.,Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, P. R. China.,Hunan Province Cooperation Innovation Center for Molecular Target New Drug Study, Hengyang 421001, P. R. China
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