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Brunetti M, Panagopoulos I, Vitelli V, Andersen K, Hveem TS, Davidson B, Eriksson AGZ, Trent PKB, Heim S, Micci F. Endometrial Carcinoma: Molecular Cytogenetics and Transcriptomic Profile. Cancers (Basel) 2022; 14:cancers14143536. [PMID: 35884597 PMCID: PMC9325179 DOI: 10.3390/cancers14143536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/12/2022] [Accepted: 07/19/2022] [Indexed: 02/05/2023] Open
Abstract
Endometrial carcinomas (ECs) are histologically classified as endometrioid and nonendometrioid tumors, with each subgroup displaying different molecular profiles and clinical outcomes. Considerable biological and clinical heterogeneity exists within this scheme, however, reflecting its imperfection. We aimed to gather additional data that might help clarify the tumors’ pathogenesis and contribute toward a more meaningful classification scheme. In total, 33 ECs were examined for the presence of chromosomal aberrations, genomic imbalances, pathogenic variants, microsatellite instability, and expression profiles at both gene and miRNA levels. Chromosome 1 was the most frequently rearranged chromosome, showing a gain of all or part of the long arm. Pathogenic variants were found for PTEN (53%), PDGFRA (37%), PIK3CA (34%), and KIT (31%). High microsatellite instability was identified in 15 ECs. Comparing tumors and controls, we identified 23 differentially expressed genes of known importance in carcinogenesis, 15 genes involved in innate and adaptative immune responses, and altered expression of 7 miRNAs. miR-32-5p was the most upregulated. Our series showed a high degree of heterogeneity. Tumors were well-separated from controls, but there was no clear-cut separation between endometrioid and nonendometrioid ECs. Whether this means that the current phenotypic classification is of little relevance or if one still has not detected which genomic parameters to enter into correlation analyses remains unknown.
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Affiliation(s)
- Marta Brunetti
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, 0379 Oslo, Norway; (M.B.); (I.P.); (K.A.); (S.H.)
| | - Ioannis Panagopoulos
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, 0379 Oslo, Norway; (M.B.); (I.P.); (K.A.); (S.H.)
| | - Valeria Vitelli
- Oslo Center for Biostatistics and Epidemiology, Department of Biostatistics, University of Oslo, 0315 Oslo, Norway;
| | - Kristin Andersen
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, 0379 Oslo, Norway; (M.B.); (I.P.); (K.A.); (S.H.)
| | - Tarjei S. Hveem
- Section for Applied Informatics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, 0379 Oslo, Norway;
| | - Ben Davidson
- Department of Pathology, The Norwegian Radium Hospital, Oslo University Hospital, 0379 Oslo, Norway;
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0315 Oslo, Norway;
| | - Ane Gerda Z. Eriksson
- Department of Gynecological Oncology, The Norwegian Radium Hospital, Oslo University Hospital, 0379 Oslo, Norway;
| | - Pernille Kristina Bjerre Trent
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0315 Oslo, Norway;
- Department of Gynecological Oncology, The Norwegian Radium Hospital, Oslo University Hospital, 0379 Oslo, Norway;
| | - Sverre Heim
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, 0379 Oslo, Norway; (M.B.); (I.P.); (K.A.); (S.H.)
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0315 Oslo, Norway;
| | - Francesca Micci
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, 0379 Oslo, Norway; (M.B.); (I.P.); (K.A.); (S.H.)
- Correspondence: ; Tel.: +47-22782360
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Cheng S, Wang W. Analysis of the subcellular location of FAM230B and its interaction with premature miR-302b in osteosarcoma. J Bone Miner Metab 2022; 40:554-560. [PMID: 35639175 DOI: 10.1007/s00774-022-01319-5] [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: 11/12/2021] [Accepted: 02/15/2022] [Indexed: 11/26/2022]
Abstract
INTRODUCTION FAM230B has been characterized as an oncogenic lncRNA in papillary thyroid cancer and gastric cancer, while its role in osteosarcoma (OS) is unclear. This research was conducted to analyze the interaction between FAM230B and miR-302b in OS. MATERIALS AND METHODS Paired OS and non-tumor tissues donated by 58 OS patients were subjected to RNA preparation and RT-qPCR to quantify the expression of FAM230B and miR-302b (both mature and premature). The subcellular location of FAM230B and its interaction with premature miR-320b were analyzed by cellular fractionation assay and RNA pull-down assay, respectively. The roles of FAM230B and miR-302b in OS cell movement were evaluated using Transwell assay. RESULTS Increased FAM230B and premature miR-302b and decreased mature miR-302b were observed in OS. FAM230B was detected in both nuclear and cytoplasm samples and directly interacted with premature miR-302b. FAM230B overexpression in OS cells 143B and HOS decreased miR-302b maturation and increased cell invasion and migration, while miR-302b overexpression suppressed cell invasion and migration. FAM230B silencing restrained cell invasion and migration, and miR-302b inhibitor accelerated cell invasion and migration. MiR-302b knockdown significantly reversed the suppressive effects of shFAM230B on migration and invasion of 143B and HOS cells. CONCLUSION FAM230B is accumulated to high levels in OS and may serve as an endogenous competing RNA for premature miR-302b in the nucleus to promote OS cell invasion and migration.
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Affiliation(s)
- Shigao Cheng
- Department of Orthopedics, Central Hospital of Loudi City, Loudi, 417000, Hunan, China
- Department of Orthopedics, Second Xianya Hospital, Central South University, No. Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Wanchun Wang
- Department of Orthopedics, Second Xianya Hospital, Central South University, No. Renmin Middle Road, Changsha, 410011, Hunan, China.
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Jiang Y, Zhao L, Wu Y, Deng S, Cao P, Lei X, Yang X. The Role of NcRNAs to Regulate Immune Checkpoints in Cancer. Front Immunol 2022; 13:853480. [PMID: 35464451 PMCID: PMC9019622 DOI: 10.3389/fimmu.2022.853480] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 03/07/2022] [Indexed: 01/07/2023] Open
Abstract
At present, the incidence of cancer is becoming more and more common, but its treatment has always been a problem. Although a small number of cancers can be treated, the recurrence rates are generally high and cannot be completely cured. At present, conventional cancer therapies mainly include chemotherapy and radiotherapy, which are the first-line therapies for most cancer patients, but there are palliatives. Approaches to cancer treatment are not as fast as cancer development. The current cancer treatments have not been effective in stopping the development of cancer, and cancer treatment needs to be imported into new strategies. Non-coding RNAs (ncRNAs) is a hot research topic at present. NcRNAs, which include microRNAs (miRNAs), circular RNAs (circRNAs), and long non-coding RNAs (lncRNAs), participate in all aspects of cancer biology. They are involved in the progression of tumors into a new form, including B-cell lymphoma, glioma, or the parenchymal tumors such as gastric cancer and colon cancer, among others. NcRNAs target various immune checkpoints to affect tumor proliferation, differentiation, and development. This might represent a new strategy for cancer treatment.
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Affiliation(s)
- Yicun Jiang
- School of Pharmacy, Hengyang Medical College, University of South China, Hengyang, China
| | - Leilei Zhao
- School of Pharmacy, Hengyang Medical College, University of South China, Hengyang, China
| | - Yiwen Wu
- School of Pharmacy, Hengyang Medical College, University of South China, Hengyang, China
| | - Sijun Deng
- School of Pharmacy, Hengyang Medical College, University of South China, Hengyang, China
| | - Pu Cao
- School of Pharmacy, Hengyang Medical College, University of South China, Hengyang, China
| | - Xiaoyong Lei
- School of Pharmacy, Hengyang Medical College, University of South China, Hengyang, China.,Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, University of South China, Hengyang, China
| | - Xiaoyan Yang
- School of Pharmacy, Hengyang Medical College, University of South China, Hengyang, China.,Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, University of South China, Hengyang, China
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4
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Yuan P, Tang C, Chen B, Lei P, Song J, Xin G, Wang Z, Hui Y, Yao W, Wang G, Zhao G. miR‑32‑5p suppresses the proliferation and migration of pancreatic adenocarcinoma cells by targeting TLDC1. Mol Med Rep 2021; 24:752. [PMID: 34468015 PMCID: PMC8430301 DOI: 10.3892/mmr.2021.12392] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 07/12/2021] [Indexed: 12/16/2022] Open
Abstract
Pancreatic adenocarcinoma (PAAD) is one of the most fatal types of cancer in humans. However, the molecular mechanisms underlying the migration and invasion abilities of PAAD cells remain unclear. The aim of the present study was to explore the regulatory roles of microRNA (miR)‑32‑5p in PAAD cells. miR‑32‑5p mimic and inhibitor were used to transfect the human PAAD AsPC‑1 cell line to determine the role of miR‑32‑5p in cell proliferation and metastasis. The starBase database predicted the binding of miR‑32‑5p to the target gene TBC/LysM‑associated domain containing 1 (TLDC1). Further analyses were performed to assess miR‑32‑5p and TLDC1 expression levels in healthy and PAAD tissues, as well as the association between miR‑32‑5p or TLDC1 expression and the prognosis of patients with PAAD. The interaction between miR‑32‑5p and TLDC1 was verified using the dual‑luciferase reporter assay. miR‑32‑5p and TLDC1 expression levels were detected by reverse transcription‑quantitative PCR and western blotting, respectively. The Cell Counting Kit‑8 assay was utilised to assess cell proliferation, whereas the wound‑healing and Transwell assays were conducted to assess cell migration and invasion, respectively. miR‑32‑5p expression levels were markedly lower in PAAD tissue compared with those in healthy tissue, and were significantly lower in PAAD cell lines compared with those in the human pancreatic duct cell line HPDE6, which corresponded with poor prognosis. miR‑32‑5p significantly inhibited the proliferation of PAAD cells and markedly reduced migration and invasion compared with the negative controls. miR‑32‑5p was shown to target TLDC1, with miR‑32‑5p expression in PAAD being negatively correlated with TLDC1 expression. High TLDC1 expression levels were associated with a poorer prognosis compared with low TLDC1 expression levels. Co‑transfection of miR‑32‑5p mimic and pcDNA/TLDC1 demonstrated that TLDC1 significantly reversed miR‑32‑5p‑mediated inhibition of the proliferation, migration and invasion of PAAD cells. Overall, the present study demonstrated that miR‑32‑5p may serve as a tumor‑suppressor gene by inhibiting the proliferation and migration and invasion of PAAD cells via the downregulation of TLDC1. Therefore, miR‑32‑5p may serve as a potential diagnostic or prognostic marker for PAAD.
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Affiliation(s)
- Peng Yuan
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Chaofeng Tang
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Bendong Chen
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Peng Lei
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Jianjun Song
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Guojun Xin
- Department of Hepatobiliary Surgery, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Zuozheng Wang
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Yongfeng Hui
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Weijie Yao
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Genwang Wang
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Guozhong Zhao
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
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Zeng ZL, Zhu Q, Zhao Z, Zu X, Liu J. Magic and mystery of microRNA-32. J Cell Mol Med 2021; 25:8588-8601. [PMID: 34405957 PMCID: PMC8435424 DOI: 10.1111/jcmm.16861] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 06/25/2021] [Accepted: 08/02/2021] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs (miRNAs) are a group of endogenous, small (∼22 nts in length) noncoding RNA molecules that function specifically by base pairing with the mRNA of genes and regulate gene expression at the post-transcriptional level. Alterations in miR-32 expression have been found in numerous diseases and shown to play a vital role in cell proliferation, apoptosis, oncogenesis, invasion, metastasis and drug resistance. MiR-32 has been documented as an oncomiR in the majority of related studies but has been also verified as a tumour suppressor miRNA in conflicting reports. Moreover, it has a crucial role in metabolic and cardiovascular disorders. This review provides an in-depth look into the most recent finding regarding miR-32, which is involved in the expression, regulation and functions in different diseases, especially tumours. Additionally, this review outlines novel findings suggesting that miR-32 may be useful as a noninvasive biomarker and as a targeted therapeutic in several diseases.
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Affiliation(s)
- Z L Zeng
- The First Affiliated Hospital, Department of Metabolism and Endocrinology, Hengyang Medical School, University of South China, Hengyang, China.,The First Affiliated Hospital, Department of Clinical Medicine, Hengyang Medical School, University of South China, Hengyang, China.,Key Laboratory for Arteriosclerology of Hunan Province, Department of Cardiovascular Disease, Hengyang Medical School, University of South China, Hengyang, China
| | - Qingyun Zhu
- The First Affiliated Hospital, Department of Metabolism and Endocrinology, Hengyang Medical School, University of South China, Hengyang, China.,The First Affiliated Hospital, Department of Clinical Medicine, Hengyang Medical School, University of South China, Hengyang, China
| | - Zhibo Zhao
- The First Affiliated Hospital, Department of Metabolism and Endocrinology, Hengyang Medical School, University of South China, Hengyang, China.,The First Affiliated Hospital, Department of Clinical Medicine, Hengyang Medical School, University of South China, Hengyang, China
| | - Xuyu Zu
- The First Affiliated Hospital, Department of Metabolism and Endocrinology, Hengyang Medical School, University of South China, Hengyang, China.,The First Affiliated Hospital, Department of Clinical Medicine, Hengyang Medical School, University of South China, Hengyang, China
| | - Jianghua Liu
- The First Affiliated Hospital, Department of Metabolism and Endocrinology, Hengyang Medical School, University of South China, Hengyang, China.,The First Affiliated Hospital, Department of Clinical Medicine, Hengyang Medical School, University of South China, Hengyang, China
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6
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Konina D, Sparber P, Viakhireva I, Filatova A, Skoblov M. Investigation of LINC00493/SMIM26 Gene Suggests Its Dual Functioning at mRNA and Protein Level. Int J Mol Sci 2021; 22:ijms22168477. [PMID: 34445188 PMCID: PMC8395196 DOI: 10.3390/ijms22168477] [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: 07/19/2021] [Revised: 08/04/2021] [Accepted: 08/05/2021] [Indexed: 11/16/2022] Open
Abstract
The amount of human long noncoding RNA (lncRNA) genes is comparable to protein-coding; however, only a small number of lncRNAs are functionally annotated. Previously, it was shown that lncRNAs can participate in many key cellular processes, including regulation of gene expression at transcriptional and post-transcriptional levels. The lncRNA genes can contain small open reading frames (sORFs), and recent studies demonstrated that some of the resulting short proteins could play an important biological role. In the present study, we investigate the widely expressed lncRNA LINC00493. We determine the structure of the LINC00493 transcript, its cell localization and influence on cell physiology. Our data demonstrate that LINC00493 has an influence on cell viability in a cell-type-specific manner. Furthermore, it was recently shown that LINC00493 has a sORF that is translated into small protein SMIM26. The results of our knockdown and overexpression experiments suggest that both LINC00493/SMIM26 transcript and protein affect cell viability, but in the opposite manner.
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Affiliation(s)
- Daria Konina
- Moscow Institute of Physics and Technology, Phystech School of Biological and Medical Physics, 141701 Dolgoprudny, Russia
- Research Centre of Medical Genetics, Laboratory of Functional Genomics, 115478 Moscow, Russia; (P.S.); (I.V.); (M.S.)
- Correspondence: (D.K.); (A.F.)
| | - Peter Sparber
- Research Centre of Medical Genetics, Laboratory of Functional Genomics, 115478 Moscow, Russia; (P.S.); (I.V.); (M.S.)
| | - Iuliia Viakhireva
- Research Centre of Medical Genetics, Laboratory of Functional Genomics, 115478 Moscow, Russia; (P.S.); (I.V.); (M.S.)
| | - Alexandra Filatova
- Research Centre of Medical Genetics, Laboratory of Functional Genomics, 115478 Moscow, Russia; (P.S.); (I.V.); (M.S.)
- Correspondence: (D.K.); (A.F.)
| | - Mikhail Skoblov
- Research Centre of Medical Genetics, Laboratory of Functional Genomics, 115478 Moscow, Russia; (P.S.); (I.V.); (M.S.)
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7
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Zhang S, Xu J, Chen Q, Zhang F, Wang H, Guo H. lncRNA MT1JP-overexpression abolishes the silencing of PTEN by miR-32 in hepatocellular carcinoma. Oncol Lett 2021; 22:604. [PMID: 34188706 PMCID: PMC8227557 DOI: 10.3892/ol.2021.12865] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 01/27/2021] [Indexed: 01/17/2023] Open
Abstract
Previous studies have shown that long non-coding RNA (lncRNA) MT1JP plays a role as a tumor suppressor in several types of cancer. The present study aimed to explore the role of MT1JP in hepatocellular carcinoma (HCC). Paired HCC and non-tumor tissues from 64 patients with HCC were subjected to RNA isolation and reverse transcription-quantitative PCR (RT-qPCR) to analyze the differential expression of MT1JP, microRNA (miR)-32 and phosphatase and tensin homolog (PTEN) in HCC. Cell transfections, followed by RT-qPCR and western blotting, were carried out to investigate the interactions among MT1JP, miR-32 and PTEN. The role of MT1JP, miR-32 and PTEN in regulating HCC cell proliferation was assessed using a Cell Counting Kit-8 assay. It was found that MT1JP was downregulated in HCC cancer tissues compared with that in non-cancer tissues. Survival analysis showed that patients with low MT1JP expression levels exhibited a significantly higher 5-year overall survival rate compared with patients with high MT1JP levels. The expression of MT1JP in HCC tissues was positively associated with PTEN and negatively associated with miR-32. Overexpression of MT1JP increased the expression levels of PTEN and decreased the expression levels of miR-32. Overexpression of miR-32 did not affect the expression of MT1JP but decreased the expression levels of PTEN and attenuated the effect of overexpression of MT1JP on the expression of PTEN. Overexpression of MT1JP and PTEN decreased the proliferation of HCC cells. Overexpression of miR-32 played an opposite role and attenuated the effects of overexpression of MT1JP. Therefore, MT1JP may upregulate PTEN by downregulating miR-32 to regulate HCC cell proliferation.
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Affiliation(s)
- Shuhua Zhang
- Department of Hepatobiliary Surgery, Union Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Jianqun Xu
- Department of Respiratory Medicine, Wuhan Third Hospital, Tongren Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Qing Chen
- Department of Hepatobiliary Surgery, Union Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Fan Zhang
- Department of Hepatobiliary Surgery, Union Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Hongjuan Wang
- Department of Respiratory Medicine, Wuhan Third Hospital, Tongren Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Hongrong Guo
- Department of Respiratory Medicine, Wuhan Third Hospital, Tongren Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
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8
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Zhang JX, Yang W, Wu JZ, Zhou C, Liu S, Shi HB, Zhou WZ. MicroRNA-32-5p inhibits epithelial-mesenchymal transition and metastasis in lung adenocarcinoma by targeting SMAD family 3. J Cancer 2021; 12:2258-2267. [PMID: 33758603 PMCID: PMC7974882 DOI: 10.7150/jca.48387] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 01/04/2021] [Indexed: 02/06/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) is the leading cause of cancer-associated death worldwide. MicroRNA (miRNA)-32-5p is as an important cancer-associated miRNA in different types cancer. To date, the role of miR-32-5p in the migration and invasion of NSCLC remains unknown. In the present study, a Transwell assay was performed to investigate the role of miR-32-5p in lung adenocarcinoma. miR-32-5p expression level was determined via reverse transcription-quantitative PCR in 24 pairs of NSCLC and adjacent normal tissues. SMAD family member 3 (SMAD3) was considered as a novel target gene by luciferase reporter assay and western blot in NSCLC. The present study demonstrated that miR-32-5p is frequently downregulated in NSCLC tissues. The overexpression of miR-32-5p resulted in the inhibition of migratory and invasive abilities in NSCLC cells. Thus, SMAD3 was identified as a target of miR-32-5p, and its expression was negatively correlated with miR-32-5p expression in clinical NSCLC tissues. Overall, these findings indicate that miR-32-5p serves as a tumor suppressor by targeting SMAD3. Thus, miR-32-5p may be a potential therapeutic target for the treatment of lung adenocarcinoma.
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Affiliation(s)
- Jin-Xing Zhang
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University; Gulou, Nanjing 210029, P.R. China
| | - Wei Yang
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University; Gulou, Nanjing 210029, P.R. China
| | - Jun-Zheng Wu
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University; Gulou, Nanjing 210029, P.R. China
| | - Chun Zhou
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University; Gulou, Nanjing 210029, P.R. China
| | - Sheng Liu
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University; Gulou, Nanjing 210029, P.R. China
| | - Hai-Bin Shi
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University; Gulou, Nanjing 210029, P.R. China
| | - Wei-Zhong Zhou
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University; Gulou, Nanjing 210029, P.R. China
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9
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Yang J, Niu H, Chen X. GATA1-Activated HNF1A-AS1 Facilitates the Progression of Triple-Negative Breast Cancer via Sponging miR-32-5p to Upregulate RNF38. Cancer Manag Res 2021; 13:1357-1369. [PMID: 33603481 PMCID: PMC7886384 DOI: 10.2147/cmar.s274204] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 11/24/2020] [Indexed: 12/14/2022] Open
Abstract
Background Triple-negative breast cancer (TNBC) is a highly invasive subtype of breast cancer with a high mortality rate. Recently, long non-coding RNAs (lncRNAs) are confirmed to modulate the progression of assorted cancers, including TNBC. However, the functions of lncRNA HNF1 homeobox A antisense RNA 1 (HNF1A-AS1) in TNBC are still unclear. Aim We aimed to investigate the function and mechanism of HNF1A-AS1 in TNBC. Methods The expression of genes in TNBC cells was tested by quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot. In vitro loss-of-function assays and in vivo xenograft experiments were conducted for evaluating the impact of HNF1A-AS1 on TNBC progression. RNA pull-down, luciferase reporter and RNA immunoprecipitation (RIP) assays were utilized for assessing the correlations between molecules. Results We discovered that HNF1A-AS1 was highly expressed in TNBC tissues and cells. Knockdown of HNF1A-AS1 restrained cell proliferation but accelerated cell apoptosis. Besides, GATA-binding protein 1 (GATA1) activated HNF1A-AS1 transcription in TNBC. MicroRNA-32-5p (miR-32-5p) was slowly expressed in TNBC cells and sponged by HNF1A-AS1, and its overexpression hinders TNBC cell growth. Ring finger protein 38 (RNF38) was verified as the target of miR-32-5p, and HNF1A-AS1 was a competing endogenous RNA (ceRNA) of RNF38 through sponging miR-32-5p. Rescue experiments indicated that upregulation of RNF38 reversed the inhibited impacts of silencing HNF1A-AS1 on TNBC cell growth. Conclusion GATA1-activated HNF1A-AS1 facilitated TNBC progression via miR-32-5p/RNF38 axis. The findings may provide new roads for developing targeted therapies of TNBC.
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Affiliation(s)
- Jingyu Yang
- Department of Breast Thyroid Surgery, The First People's Hospital of Yunnan Province, Kunming, 650032, People's Republic of China
| | - Heng Niu
- Department of Breast Thyroid Surgery, The First People's Hospital of Yunnan Province, Kunming, 650032, People's Republic of China
| | - Xin Chen
- Department of Breast Thyroid Surgery, The First People's Hospital of Yunnan Province, Kunming, 650032, People's Republic of China
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Chen G, Zheng Z, Li J, Zhang P, Wang Z, Guo S, Ma J, Shen J, Li H. Long non‑coding RNA PITPNA‑AS1 silencing suppresses proliferation, metastasis and epithelial‑mesenchymal transition in non‑small cell lung cancer cells by targeting microRNA‑32‑5p. Mol Med Rep 2021; 23:212. [PMID: 33495838 PMCID: PMC7830934 DOI: 10.3892/mmr.2021.11851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 08/25/2020] [Indexed: 01/09/2023] Open
Abstract
Lung cancer is one of the most common types of cancer and has a high mortality rate, worldwide. The major histopathological subtype is non-small cell lung cancer (NSCLC). The aim of the present study was to investigate the role of long non-coding (lnc) RNA PITPNA antisense RNA 1 (PITPNA-AS1) in NSCLC and elucidate its potential mechanisms. The expression of PITPNA-AS1 was determined in several NSCLC cell lines. Following PITPNA-AS1-silencing, cell proliferation, invasion and migration were evaluated using Cell Counting Kit-8, colony formation, Transwell assay and wound healing assays, respectively. The expression levels of proliferation-, migration- and epithelial-mesenchymal transition (EMT)-associated proteins were examined using immunofluorescence assay or western blot analysis. A luciferase reporter assay was conducted to verify the potential interaction between PITPNA-AS1 and microRNA(miR)-32-5p. Subsequently, rescue assays were performed to investigate the effects of PITPNA-AS1 and miR-32-5p on NSCLC progression. The results demonstrated that PITPNA-AS1 was highly expressed in NSCLC tissues and cell lines. It was found that PITPNA-AS1 silencing inhibited the proliferation, invasion and migration of NSCLC cells. Furthermore, the protein expression of E-cadherin was upregulated, while the expression levels N-cadherin and vimentin were downregulated. The luciferase reporter assay confirmed that miR-32-5p was a direct target of PITPNA-AS1. The rescue experiments suggested that a miR-32-5p inhibitor significantly reversed the inhibitory effects of PITPNA-AS1 silencing on proliferation, invasion, migration and EMT in NSCLC cells. Collectively, the present results demonstrated that PITPNA-AS1 silencing could suppress the progression of NSCLC by targeting miR-32-5p, suggesting a promising biomarker in NSCLC diagnosis and treatment.
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Affiliation(s)
- Gang Chen
- The Secondary Department of Thoracic Surgery, The Tumor Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi 030013, P.R. China
| | - Zhifeng Zheng
- Department of General Thoracic Surgery, Linfen People's Hospital, Linfen, Shanxi 041000, P.R. China
| | - Junsheng Li
- Department of Cardiothoracic Surgery, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang 318000, P.R. China
| | - Peigang Zhang
- Department of Cardio‑Thoracic Surgery, The People's Hospital of Lvliang, Lvliang, Shanxi 033000, P.R. China
| | - Zhenjun Wang
- Cardiothoracic Surgery Department of Shanxi Yangquan Coal Industry (Group) Co., Ltd., Yangquan, Shanxi 045000, P.R. China
| | - Shiping Guo
- The Secondary Department of Thoracic Surgery, The Tumor Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi 030013, P.R. China
| | - Jun Ma
- Department of Thoracic Surgery, Heji Hospital, Changzhi Medical College, Changzhi, Shanxi 046011, P.R. China
| | - Jian Shen
- Department of Cardiothoracic Surgery, Changzhi People's Hospital Affiliated to Shanxi Medical University, Changzhi, Shanxi 046000, P.R. China
| | - Huixin Li
- Department of Cardiothoracic Surgery, Yuci District People's Hospital, Jinzhong, Shanxi 030600, P.R. China
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11
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Wu J, Li R, Li L, Gu Y, Zhan H, Zhou C, Zhong C. MYC-activated lncRNA HNF1A-AS1 overexpression facilitates glioma progression via cooperating with miR-32-5p/SOX4 axis. Cancer Med 2020; 9:6387-6398. [PMID: 33448691 PMCID: PMC7476832 DOI: 10.1002/cam4.3186] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 02/27/2020] [Accepted: 05/01/2020] [Indexed: 12/15/2022] Open
Abstract
Mounting literatures have revealed the crucial effects of long noncoding RNA (lncRNA) in various cancers, including glioma. HNF1A‐AS1, a novel lncRNA, is reported to modulate tumorigenesis and development of multiple cancers. However, the tumorigenic function of lncRNA HNF1A‐AS1 in glioma remains largely unknown. quantitative reverse transcription and polymerase chain reaction and western blot assays were applied to evaluate the expression of relevant mRNAs and proteins. 5‐Ethynyl‐2’‐ deoxyuridine, terminal deoxynucleotidyl transferase dUTP nick‐end labeling, flow cytometry, and transwell assays were conducted for examining the influence of HNF1A‐AS1 on glioma cell functions. The relationship among RNAs was investigated by mechanical experiments. The results demonstrated that HNF1A‐AS1 was predominantly highly expressed in glioma cell lines compared with nontumor glial epithelial cell, which was associated with the stimulation of transcription factor myelocytomatosis oncogene. Knockdown of HNF1A‐AS1 remarkably inhibited glioma cells proliferation, migration, and invasion, while accelerating cell apoptosis in vitro. Mechanically, HNF1A‐AS1 served as a miR‐32‐5p sponge. Moreover, SOX4 was discovered as a target of miR‐32‐5p. Inhibited miR‐32‐5p or upregulated SOX4 could markedly counteract the inhibitory effects of silencing HNF1A‐AS1 on glioma malignant biological behaviors. HNF1A‐AS1 exerted oncogenic property in glioma progression via upregulating miR‐32‐5p–mediated SOX4 expression, suggesting potential novel therapeutic target for future glioma treatment.
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Affiliation(s)
- Jianheng Wu
- Department of Neurosurgery, Gaozhou People's Hospital, Gaozhou, Guangdong, China
| | - Rong Li
- Department of Radiation Oncology, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Linfan Li
- Department of Neurosurgery, Gaozhou People's Hospital, Gaozhou, Guangdong, China
| | - Yimian Gu
- Department of Neurosurgery, Gaozhou People's Hospital, Gaozhou, Guangdong, China
| | - Hui Zhan
- Department of Neurosurgery, Gaozhou People's Hospital, Gaozhou, Guangdong, China
| | - Changbao Zhou
- Department of Neurosurgery, Gaozhou People's Hospital, Gaozhou, Guangdong, China
| | - Chuanhong Zhong
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Neurosurgical Clinical Research Center of Sichuan Province, Luzhou, Sichuan, China
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12
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Dai Y, Yan T, Gao Y. Silence of miR-32-5p promotes endothelial cell viability by targeting KLF2 and serves as a diagnostic biomarker of acute myocardial infarction. Diagn Pathol 2020; 15:19. [PMID: 32127011 PMCID: PMC7053100 DOI: 10.1186/s13000-020-00942-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 02/26/2020] [Indexed: 12/15/2022] Open
Abstract
Background MicroRNAs (miRNAs) have been investigated in various cardiovascular diseases. As a fatal disease, acute myocardial infarction (AMI) is a serious global health burden. The purpose of this study was to investigate the role of miR-32-5p in AMI patients and human umbilical vein endothelial cells (HUVECs) to explore novel diagnostic and therapeutic approaches for AMI. Methods A target prediction tool miRanda and the luciferase activity assay were used to confirm the interaction of miR-32-5p with Kruppel-like factor 2 (KLF2). Effect of miR-32-5p on HUVECs viability was examined using CCK-8 assay. Serum miR-32-5p expression was measured using quantitative Real-Time PCR, and its correlation with myocardial damage and endothelial injury markers and pro-inflammatory cytokines was assessed. Receiver operating characteristic (ROC) curves were used to evaluate the diagnostic value of miR-32-5p in AMI patients. Results miR-32-5p, as a direct regulator of KLF2, could suppress the cell proliferation of HUVECs. Serum miR-32-5p expression was elevated in AMI patients and positively correlated with the biomarker levels of myocardial damage and endothelial injury and pro-inflammatory cytokines. The area under the ROC curve for miR-32-5p was 0.949, indicating the relatively high diagnostic accuracy of miR-32-5p in AMI patients. Conclusion The data of this study revealed that the increased serum miR-32-5p expression serves as a candidate diagnostic biomarker of AMI, and that miR-32-5p may be involved in the myocardial damage, endothelial injury and inflammatory responses of AMI by targeting KLF2, indicating the potential of miR-32-5p as a diagnostic biomarker and molecular target to improve the treatment of AMI.
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Affiliation(s)
- Yunxiang Dai
- Department of Emergency, Qingdao Jiaozhou Central Hospital, No. 29 Xuzhou Road, Qingdao, 266300, Shandong, China
| | - Tingguo Yan
- Department of cardiovascular medicine, Anqiu People's Hospital, Weifang, 262100, Shandong, China
| | - Yuming Gao
- Department of Emergency, Qingdao Jiaozhou Central Hospital, No. 29 Xuzhou Road, Qingdao, 266300, Shandong, China.
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13
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Yan X, Yu H, Liu Y, Hou J, Yang Q, Zhao Y. miR-27a-3p Functions as a Tumor Suppressor and Regulates Non-Small Cell Lung Cancer Cell Proliferation via Targeting HOXB8. Technol Cancer Res Treat 2020; 18:1533033819861971. [PMID: 31319766 PMCID: PMC6640059 DOI: 10.1177/1533033819861971] [Citation(s) in RCA: 16] [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] [Indexed: 12/12/2022] Open
Abstract
MicroRNA-27a-3p has been implicated to play crucial roles in human cancers. However, the biological role and underlying mechanisms of microRNA-27a-3p in regulating nonsmall lung cancer remain unclear. MicroRNA-27a-3p expression levels in non-small lung cancer cell lines were detected by quantitative real-time polymerase chain reaction, using a normal cell line as control. The effects of microRNA-27a-3p on cell proliferation and apoptosis were analyzed by Cell Counting Kit-8 assay and flow cytometry assay. Luciferase activity reporter assay and Western blot were conducted to validate the potential targets of miR27a-3p after preliminary screening by TargetScan. Effect of microRNA-27a-3p or homeobox B8 on the overall survival of patients with non-small lung cancer was analyzed at Kaplan-Meier Plotter website. MicroRNA-27a-3p expression levels were significantly reduced in non-small lung cancer cell lines compared with normal cell line. Overexpression of microRNA-27a-3p inhibits non-small lung cancer cell proliferation but promotes cell apoptosis. Homeobox B8 was further validated as a functional target of microRNA-27a-3p. Collectively, our results indicated that microRNA-27a-3p acts as a tumor suppressor in non-small lung cancer via targeting homeobox B8.
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Affiliation(s)
- Xiaohong Yan
- Department of Medical Oncology, Baoji Municipal Central Hospital, Baoji, People’s Republic of China
| | - Hui Yu
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, People’s Republic of China
| | - Yao Liu
- Department of Medical Oncology, Baoji Municipal Central Hospital, Baoji, People’s Republic of China
| | - Jie Hou
- Department of Medical Oncology, Baoji Municipal Central Hospital, Baoji, People’s Republic of China
| | - Qiao Yang
- Department of Medical Oncology, Baoji Municipal Central Hospital, Baoji, People’s Republic of China
| | - Yaning Zhao
- Department of Medical Oncology, Baoji Municipal Central Hospital, Baoji, People’s Republic of China
- Yaning Zhao, PhD, Department of Medical Oncology, Baoji Municipal Central Hospital, No. 8 Jiangtan Road, Weibin District, Baoji 721008, People’s Republic of China.
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14
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Feng J, Guo J, Wang JP, Chai BF. MiR-32-5p aggravates intestinal epithelial cell injury in pediatric enteritis induced by Helicobacter pylori. World J Gastroenterol 2019; 25:6222-6237. [PMID: 31749593 PMCID: PMC6848013 DOI: 10.3748/wjg.v25.i41.6222] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/11/2019] [Accepted: 10/21/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Pediatric enteritis is one of the infectious diseases in the digestive system that causes a variety of digestive problems, including diarrhea, vomiting, and bellyache in children. Clinically, Helicobacter pylori (H. pylori) infection is one of the common factors to cause pediatric enteritis. It has been demonstrated that aberrant expression of microRNAs (miRNAs) is found in gastrointestinal diseases caused by H. pylori, and we discovered a significant increase of miR-32-5p in H. pylori-related pediatric enteritis. However, the exact role of miR-32-5p in it is still unknown.
AIM To investigate the role of aberrant miR-32-5p in pediatric enteritis induced by H. pylori.
METHODS MiR-32-5p expression was detected by quantitative real time-polymerase chain reaction. The biological role of miR-32-5p in H. pylori-treated intestinal epithelial cells was evaluated by Cell Counting Kit-8 assay and flow cytometry. The potential target of miR-32-5p was predicted with TargetScanHuman and verified by luciferase assay. The downstream mechanism of miR-32-5p was explored by using molecular biology methods.
RESULTS We found that miR-32-5p was overexpressed in serum of H. pylori-induced pediatric enteritis. Further investigation revealed that H. pylori infection promoted the death of intestinal epithelial cells, and increased miR-32-5p expression. Moreover, miR-32-5p mimic further facilitated apoptosis and inflammatory cytokine secretion of intestinal epithelial cells. Further exploration revealed that SMAD family member 6 (SMAD6) was the direct target of miR-32-5p, and SMAD6 overexpression partially rescued cell damage induced by H. pylori. The following experiments showed that miR-32-5p/SMAD6 participated in the apoptosis of intestinal epithelial cells induced by transforming growth factor-β-activated kinase 1 (TAK1)-p38 activation under H. pylori infection.
CONCLUSION Our work uncovered the crucial role of aberrant expression of miR-32-5p in H. pylori–related pediatric enteritis, and suggested that the TAK1-p38 pathway is involved in it.
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Affiliation(s)
- Jing Feng
- Institute of Loess Plateau, Shanxi University, Taiyuan 030006, Shanxi Province, China
- Department of Gastroenterology, Shanxi Provincial People's Hospital, The Affiliated People's Hospital of Shanxi Medical University, Taiyuan 030012, Shanxi Province, China
| | - Jian Guo
- Department of General Surgery, Shanxi Provincial People's Hospital, The Affiliated People's Hospital of Shanxi Medical University, Taiyuan 030012, Shanxi Province, China
| | - Jun-Ping Wang
- Department of Gastroenterology, Shanxi Provincial People's Hospital, The Affiliated People's Hospital of Shanxi Medical University, Taiyuan 030012, Shanxi Province, China
| | - Bao-Feng Chai
- Institute of Loess Plateau, Shanxi University, Taiyuan 030006, Shanxi Province, China
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15
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SNHG14 promotes the tumorigenesis and metastasis of colorectal cancer through miR-32-5p/SKIL axis. In Vitro Cell Dev Biol Anim 2019; 55:812-820. [PMID: 31471872 DOI: 10.1007/s11626-019-00398-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Accepted: 08/04/2019] [Indexed: 01/23/2023]
Abstract
Colorectal cancer (CRC) is regarded as one of the top ten malignant cancers, which has caused millions of mortalities all over the world. Although advanced therapeutic methods have been employed to treat CRC, the prognosis of CRC patients remains unsatisfactory. Many researchers claimed long noncoding RNAs (lncRNAs) frequently participate in the development of cancers. Small nucleolar RNA host gene 14 (SNHG14) was proved to play roles in various cancers. Nevertheless, neither biological function nor regulatory mechanism of SNHG14 has been explored in CRC. This investigation is aimed at exploring the role of SNHG14 in CRC. The expression of genes including SNHG14, miR-32-5p, and ski-oncogene-like (SKIL) was measured by RT-qPCR assay. 5-Ethynyl-2'-deoxyuridine (EdU) assay was employed to measure cell proliferation. Cell migration and invasion were evaluated by transwell assay. Western blot assay was performed to test the protein expression. The binding capacity between miR-32-5p and SNHG14 (or SKIL) was explored by luciferase reporter and RNA immunoprecipitation (RIP) assays. SNHG14 expression is upregulated in CRC cells. Moreover, SNHG14 suppression inhibited the proliferation, metastasis, and epithelial-mesenchymal transition (EMT) process in CRC cells. miR-32-5p presented lower expression, which was negatively regulated by SNHG14. SKIL could combine with miR-32-5p. The mRNA and protein expression of SKIL was downregulated by SNHG14 knockdown or miR-32-5p overexpression. At last, the inhibitory effect of SNHG14 suppression on proliferation, metastasis, and EMT process was rescued by SKIL overexpression. SNHG14 regulates CRC progression via miR-32-5p/SKIL axis, providing a novel point in treatment of CRC patients.
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Wu Y, Peng J. RETRACTED: miR-27b Targets HOXB8 to Inhibit Malignant Behaviors of Osteosarcoma. Technol Cancer Res Treat 2019; 18:1533033819870791. [PMID: 34486446 PMCID: PMC6732855 DOI: 10.1177/1533033819870791] [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: 02/28/2019] [Revised: 04/20/2019] [Accepted: 05/22/2019] [Indexed: 12/02/2022] Open
Abstract
MicroRNAs function as either tumor suppressor or oncogene in human cancers. This study aimed to explore the role of miR-27b in osteosarcoma. Expression of miR-27b or homeobox B8 in osteosarcoma cell lines was analyzed by quantitative real-time polymerase chain reaction and Western blot, respectively. Luciferase activity reporter assay and Western blot were conducted to explore the association between miR-27b and homeobox B8. Cell Counting Kit-8, colony formation assay, and wound-healing assay were performed to investigate the role of miR-27b or homeobox B8 on cell proliferation, colony formation, and cell migration. Expression of miR-27b was significantly reduced, while homeobox B8 was increased in osteosarcoma cell lines. In addition, homeobox B8 was validated as a direct target of homeobox B8. Moreover, miR-27b regulates osteosarcoma cell proliferation, colony formation, and migration through targeting homeobox B8. Taken together, our study provides novel insight into the progression of osteosarcoma, and the miR-27b–homeobox B8 axis identified may be developed as therapeutic targets against hepatocellular carcinoma in the future.
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Affiliation(s)
- Yingyong Wu
- Orthopaedic Eight Disease Area, Mindong Hospital, Ningde, People’s Republic
of China
| | - Jinyun Peng
- Mindong Hospital, Ningde, People’s Republic of China
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