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Taheri M, Shirvani-Farsani Z, Harsij A, Fathi M, Khalilian S, Ghafouri-Fard S, Baniahmad A. A review on the role of KCNQ1OT1 lncRNA in human disorders. Pathol Res Pract 2024; 255:155188. [PMID: 38330620 DOI: 10.1016/j.prp.2024.155188] [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: 01/02/2024] [Revised: 01/28/2024] [Accepted: 01/31/2024] [Indexed: 02/10/2024]
Abstract
KCNQ1OT1 is an lncRNA located within KCNQ1 gene on chromosome 11p15.5. This lncRNAs participates in the pathogenesis of a diversity of cancers as well as non-cancerous conditions. In most types of cancers, KCNQ1OT1 is regarded as an oncogene. In a wide array of cancers, high level of KCNQ1OT1 is associated with lower overall survival time. This lncRNA has been found to adsorb a variety of miRNAs, namely miR-15a, miR-211-5p, hsa-miR-107, miR-145, miR-34a, miR-204-5p, miR-129-5p, miR-372-3p, miR-491-5p, miR-153, miR-185-5p, miR-124-3p, miR-211-5p, miR-149, miR-148a-3p, miR-140-5p, miR-125b-5p, miR-9, miR-329-3p, miR-760, miR-296-5p, miR-3666 and miR-129-5p, thus regulating the downstream targets of these miRNAs. In this manuscript, our attention is on this lncRNA and its biomolecular roles in human cancers and other disorders. KCNQ1OT1 plays significant roles in the tumorigenesis and may function as a prospective target for cancer therapy.
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Affiliation(s)
- Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
| | - Zeinab Shirvani-Farsani
- Department of Cell and Molecular Biology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
| | - Atefeh Harsij
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohadeseh Fathi
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sheyda Khalilian
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Aria Baniahmad
- Institute of Human Genetics, Jena University Hospital, Jena, Germany.
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Yang J, Zou Y, Wu J, Chen B, Luo C, Chen X, Shen H, Luo L. The Long Noncoding RNA ZEB2-AS1 Contributes to Proliferation and Epithelial-to-Mesenchymal Transition of Osteosarcoma. Cancer Biother Radiopharm 2023; 38:596-603. [PMID: 33085924 DOI: 10.1089/cbr.2019.3433] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background: Long non-coding RNA Zinc finger E-box binding homeobox 2 (ZEB2) antisense RNA 1 (ZEB2-AS1) has been shown to promote tumor progression. However, the clinical significance and fundamental function role of ZEB2-AS1 in osteosarcoma (OS) has been poorly understood. Methods: The expression of ZEB2-AS1 was determined in tumor tissues and matched normal tissues from 67 OS patients using quantitative reverse transcriptase PCR analysis. Clinical value of ZEB2-AS1 was evaluated by χ2 test and Kaplan-Meier method. Cell proliferation was analyzed using CCK-8 assay, colony formation. Cell apoptosis status was determined by caspase-3 activity assay. Cell migration, invasion and epithelial-mesenchymal transition (EMT) were investigated by scratch wound healing, transwell invasion assays and Western blotting. Results: Clinical association analysis revealed that high ZEB2-AS1 expression correlated with tumor size, distant metastasis and poor prognosis of OS patients. Moreover, ZEB2-AS1 expression was identified as an independent prognostic factor for OS patients. Loss-of-function assays demonstrated that ZEB2-AS1 knockdown suppressed the proliferation and induced apoptosis in OS cells. In addition, ZEB2-AS1 knockdown inhibited cell migration, invasion, EMT of OS cells in vitro. Conclusions: Taken together, our data demonstrate that ZEB2-AS1 serves a putative oncogenic role and associates with unfavorable prognosis in OS.
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Affiliation(s)
- Jiexiang Yang
- Department of Orthopedics, Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, P.R. China
| | - Yonggen Zou
- Department of Orthopedics, Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, P.R. China
| | - Jian Wu
- Department of Orthopedics, Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, P.R. China
| | - Bo Chen
- Department of Orthopedics, Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, P.R. China
| | - Cheng Luo
- Department of Orthopedics, Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, P.R. China
| | - Xiaojun Chen
- Department of Orthopedics, Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, P.R. China
| | - Huarui Shen
- Department of Orthopedics, Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, P.R. China
| | - Lin Luo
- Department of Orthopedics, Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, P.R. China
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Qin S, Wang Y, Ma C, Lv Q. Competitive endogenous network of circRNA, lncRNA, and miRNA in osteosarcoma chemoresistance. Eur J Med Res 2023; 28:354. [PMID: 37717007 PMCID: PMC10504747 DOI: 10.1186/s40001-023-01309-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 08/23/2023] [Indexed: 09/18/2023] Open
Abstract
Osteosarcoma is the most prevalent and fatal type of bone tumor. Despite advancements in the treatment of other cancers, overall survival rates for patients with osteosarcoma have stagnated over the past four decades Multiple-drug resistance-the capacity of cancer cells to become simultaneously resistant to multiple drugs-remains a significant obstacle to effective chemotherapy. The recent studies have shown that noncoding RNAs can regulate the expression of target genes. It has been proposed that "competing endogenous RNA" activity forms a large-scale regulatory network across the transcriptome, playing important roles in pathological conditions such as cancer. Numerous studies have highlighted that circular RNAs (circRNAs) and long noncoding RNAs (lncRNAs) can bind to microRNA (miRNA) sites as competitive endogenous RNAs, thereby affecting and regulating the expression of mRNAs and target genes. These circRNA/lncRNA-associated competitive endogenous RNAs are hypothesized to play significant roles in cancer initiation and progression. Noncoding RNAs (ncRNAs) play an important role in tumor resistance to chemotherapy. However, the molecular mechanisms of the lncRNA/circRNA-miRNA-mRNA competitive endogenous RNA network in drug resistance of osteosarcoma remain unclear. An in-depth study of the molecular mechanisms of drug resistance in osteosarcoma and the elucidation of effective intervention targets are of great significance for improving the overall recovery of patients with osteosarcoma. This review focuses on the molecular mechanisms underlying chemotherapy resistance in osteosarcoma in circRNA-, lncRNA-, and miRNA-mediated competitive endogenous networks.
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Affiliation(s)
- Shuang Qin
- Department of Medical Imaging, Tongji Hospital, Tongji University School of Medicine, Xincun Road No. 389, Shanghai, 200065, China
| | - Yuting Wang
- Department of Medical Imaging, Tongji Hospital, Tongji University School of Medicine, Xincun Road No. 389, Shanghai, 200065, China
| | - Chunhui Ma
- Department of Orthopedics, Shanghai General Hospital of Shanghai Jiaotong University, Wujin Road No. 85, Shanghai, 200080, China.
| | - Qi Lv
- Department of Medical Imaging, Tongji Hospital, Tongji University School of Medicine, Xincun Road No. 389, Shanghai, 200065, China.
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Fatema K, Larson Z, Barrott J. Navigating the genomic instability mine field of osteosarcoma to better understand implications of non-coding RNAs. BIOCELL 2022; 46:2177-2193. [PMID: 35755302 PMCID: PMC9224338 DOI: 10.32604/biocell.2022.020141] [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] [Indexed: 11/19/2022]
Abstract
Osteosarcoma is one of the most genomically complex cancers and as result, it has been difficult to assign genomic aberrations that contribute to disease progression and patient outcome consistently across samples. One potential source for correlating osteosarcoma and genomic biomarkers is within the non-coding regions of RNA that are differentially expressed. However, it is unsurprising that a cancer classification that is fraught with genomic instability is likely to have numerous studies correlating non-coding RNA expression and function have been published on the subject. This review undertakes the formidable task of evaluating the published literature of noncoding RNAs in osteosarcoma. This is not the first review on this topic and will certainly not be the last. The review is organized with an introduction into osteosarcoma and the epigenetic control of gene expression before reviewing the molecular function and expression of long non-coding RNAs, circular RNAs, and short non-coding RNAs such as microRNAs, piwi RNAs, and short-interfering RNAs. The review concludes with a review of the literature and how the biology of non-coding RNAs can be used therapeutically to treat cancers, especially osteosarcoma. We conclude that non-coding RNA expression and function in osteosarcoma is equally complex to understanding the expression differences and function of coding RNA and proteins; however, with the added lens of both coding and non-coding genomic sequence, researchers can begin to identify the patterns that consistently associate with aggressive osteosarcoma.
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Affiliation(s)
- Kaniz Fatema
- Biomedical and Pharmaceutical Science, Idaho State University, Pocatello, 83209, USA
| | - Zachary Larson
- Biomedical and Pharmaceutical Science, Idaho State University, Pocatello, 83209, USA
| | - Jared Barrott
- Biomedical and Pharmaceutical Science, Idaho State University, Pocatello, 83209, USA
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lncRNA KCNQ1OT1 Promotes EMT, Angiogenesis, and Stemness of Pituitary Adenoma by Upregulation of RAB11A. JOURNAL OF ONCOLOGY 2022; 2022:4474476. [PMID: 35432529 PMCID: PMC9010184 DOI: 10.1155/2022/4474476] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 02/20/2022] [Accepted: 03/03/2022] [Indexed: 12/12/2022]
Abstract
This study is aimed at investigating the effect and mechanism of long noncoding RNA (lncRNA) KCNQ1OT1 on pituitary adenoma (PA). The KCNQ1OT1 expression in invasive and noninvasive PA tissues was detected by real-time fluorescence quantitative polymerase chain reaction (qPCR). The effects of KCNQ1OT1 on the proliferation of PA cells, namely, GH3 and HP75, were detected by CCK-8 experiment. The Transwell assay detected the effect of KCNQ1OT1 on the invasion of GH3 and HP75 cells. The effect of KCNQ1OT1 on the clonal formation ability was detected by clonal formation experiment. The double luciferase reporter assay and the miRNA pull down assay verified the binding of KCNQ1OT1 to miR-140-5p. Meanwhile, the regulatory effect of miR-140-5p on RAB11A was verified. qPCR results showed that KCNQ1OT1 was significantly increased in invasive PA compared with noninvasive PA tissues. Knockdown KCNQ1OT1 inhibited PA cell stemness, angiogenesis, and EMT. In addition, knockdown KCNQ1OT1 inhibited the proliferation, invasion, and clonal formation of PA. miR-140-5p is the target gene of KCNQ1OT1. miR-140-5p targets RAB11A directly. RAB11A can mediate the biological effects of KCNQ1OT1. Meanwhile, lncRNA KCNQ1OT1 can promote the EMT and cellular stemness of PA. Its mechanism of action is realized by inhibiting miR-140-5p. This result can provide a molecular basis for the further study of PA.
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Tumor Suppressive Role of miR-342-5p and miR-491-5p in Human Osteosarcoma Cells. Pharmaceuticals (Basel) 2022; 15:ph15030362. [PMID: 35337159 PMCID: PMC8949568 DOI: 10.3390/ph15030362] [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: 01/18/2022] [Revised: 03/10/2022] [Accepted: 03/14/2022] [Indexed: 02/04/2023] Open
Abstract
Osteosarcomas are the most common type of malignant bone tumor. These tumors are characterized by the synthesis of an osteoid matrix. Current treatments are based on surgery and combination chemotherapy. However, for metastatic or recurrent tumors, chemotherapy is generally ineffective, and osteosarcomas are sometimes unresectable. Thus, the use of microRNAs (miRNAs) may represent an attractive alternative for the development of new therapies. Using high-throughput functional screening based on impedancemetry, we previously selected five miRNAs with potential chemosensitizing or antiproliferative effects on chondrosarcoma cells. We validated the tumor-suppressive activity of miR-491-5p and miR-342-5p in three chondrosarcoma cell lines. Here, we carried out individual functional validation of these five miRNAs in three osteosarcoma cell lines used as controls to evaluate their specificity of action on another type of bone sarcoma. The cytotoxic effects of miR-491-5p and miR-342-5p were also confirmed in osteosarcoma cells. Both miRNAs induced apoptosis. They increased Bcl-2 homologous antagonist killer (Bak) protein expression and directly targeted Bcl-2 lymphoma-extra large (Bcl-xL). MiR-342-5p also decreased B-cell lymphoma-2 (Bcl-2) protein expression, and miR-491-5p decreased that of Epidermal Growth Factor Receptor (EGFR). MiR-342-5p and miR-491-5p show tumor-suppressive activity in osteosarcomas. This study also confirms the potential of Bcl-xL as a therapeutic target in osteosarcomas.
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LncRNA-mediated DNA methylation: an emerging mechanism in cancer and beyond. J Exp Clin Cancer Res 2022; 41:100. [PMID: 35292092 PMCID: PMC8922926 DOI: 10.1186/s13046-022-02319-z] [Citation(s) in RCA: 70] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 03/08/2022] [Indexed: 02/07/2023] Open
Abstract
DNA methylation is one of the most important epigenetic mechanisms to regulate gene expression, which is highly dynamic during development and specifically maintained in somatic cells. Aberrant DNA methylation patterns are strongly associated with human diseases including cancer. How are the cell-specific DNA methylation patterns established or disturbed is a pivotal question in developmental biology and cancer epigenetics. Currently, compelling evidence has emerged that long non-coding RNA (lncRNA) mediates DNA methylation in both physiological and pathological conditions. In this review, we provide an overview of the current understanding of lncRNA-mediated DNA methylation, with emphasis on the roles of this mechanism in cancer, which to the best of our knowledge, has not been systematically summarized. In addition, we also discuss the potential clinical applications of this mechanism in RNA-targeting drug development.
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Peng S, Gao Y, Shi S, Zhao D, Cao H, Fu T, Cai X, Xiao J. LncRNA-AK137033 inhibits the osteogenic potential of adipose-derived stem cells in diabetic osteoporosis by regulating Wnt signaling pathway via DNA methylation. Cell Prolif 2022; 55:e13174. [PMID: 34953002 PMCID: PMC8780896 DOI: 10.1111/cpr.13174] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/06/2021] [Accepted: 12/09/2021] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES Bone tissue engineering based on adipose-derived stem cells (ASCs) is expected to become a new treatment for diabetic osteoporosis (DOP) patients with bone defects. However, compared with control ASCs (CON-ASCs), osteogenic potential of DOP-ASCs is decreased, which increased the difficulty of bone reconstruction in DOP patients. Moreover, the cause of the poor osteogenesis of ASCs in a hyperglycemic microenvironment has not been elucidated. Therefore, this study explored the molecular mechanism of the decline in the osteogenic potential of DOP-ASCs from the perspective of epigenetics to provide a possible therapeutic target for bone repair in DOP patients with bone defects. MATERIALS AND METHODS An animal model of DOP was established in mice. CON-ASCs and DOP-ASCs were isolated from CON and DOP mice, respectively. AK137033 small interfering RNA (SiRNA) and an AK137033 overexpression plasmid were used to regulate the expression of AK137033 in CON-ASCs and DOP-ASCs in vitro. Lentiviruses that carried shRNA-AK137033 or AK137033 cDNA were used to knockdown or overexpress AK137033, respectively, in CON-ASCs and DOP-ASCs in vivo. Hematoxylin and eosin (H&E), Masson's, alizarin red, and alkaline phosphatase (ALP) staining, micro-computed tomography (Micro-CT), flow cytometry, qPCR, western blotting, immunofluorescence, and bisulfite-specific PCR (BSP) were used to analyze the functional changes of ASCs. RESULTS The DOP mouse model was established successfully. Compared with CON-ASCs, AK137033 expression, the DNA methylation level of the sFrp2 promoter region, Wnt signaling pathway markers, and the osteogenic differentiation potential were decreased in DOP-ASCs. In vitro experiments showed that AK137033 silencing inhibited the Wnt signaling pathway and osteogenic ability of CON-ASCs by reducing the DNA methylation level in the sFrp2 promoter region. Additionally, overexpression of AK137033 in DOP-ASCs rescued these changes caused by DOP. Moreover, the same results were obtained in vivo. CONCLUSIONS LncRNA-AK137033 inhibits the osteogenic potential of DOP-ASCs by regulating the Wnt signaling pathway via modulating the DNA methylation level in the sFrp2 promoter region. This study provides an important reference to find new targets for the treatment of bone defects in DOP patients.
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Affiliation(s)
- Shuanglin Peng
- Department of Oral ImplantologyThe Affiliated Stomatology Hospital of Southwest Medical UniversityLuzhouChina
- State Key Laboratory of Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
- National Key Clinical SpecialtyThe Affiliated Hospital of Southwest Medical UniversityLuzhouChina
| | - Yujin Gao
- Department of Oral ImplantologyThe Affiliated Stomatology Hospital of Southwest Medical UniversityLuzhouChina
- Orofacial Reconstruction and Regeneration LaboratoryThe Affiliated Stomatology Hospital of Southwest Medical UniversityLuzhouChina
- Department of Oral and Maxillofacial SurgeryThe Affiliated Stomatology Hospital of Southwest Medical UniversityLuzhouChina
| | - Sirong Shi
- State Key Laboratory of Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Dan Zhao
- State Key Laboratory of Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Huayue Cao
- Department of Oral ImplantologyThe Affiliated Stomatology Hospital of Southwest Medical UniversityLuzhouChina
- National Key Clinical SpecialtyThe Affiliated Hospital of Southwest Medical UniversityLuzhouChina
- Department of Oral and Maxillofacial SurgeryThe Affiliated Stomatology Hospital of Southwest Medical UniversityLuzhouChina
| | - Ting Fu
- Department of Oral ImplantologyThe Affiliated Stomatology Hospital of Southwest Medical UniversityLuzhouChina
- National Key Clinical SpecialtyThe Affiliated Hospital of Southwest Medical UniversityLuzhouChina
- Department of Oral and Maxillofacial SurgeryThe Affiliated Stomatology Hospital of Southwest Medical UniversityLuzhouChina
| | - Xiaoxiao Cai
- State Key Laboratory of Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Jingang Xiao
- Department of Oral ImplantologyThe Affiliated Stomatology Hospital of Southwest Medical UniversityLuzhouChina
- National Key Clinical SpecialtyThe Affiliated Hospital of Southwest Medical UniversityLuzhouChina
- Orofacial Reconstruction and Regeneration LaboratoryThe Affiliated Stomatology Hospital of Southwest Medical UniversityLuzhouChina
- Department of Oral and Maxillofacial SurgeryThe Affiliated Stomatology Hospital of Southwest Medical UniversityLuzhouChina
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Cagle P, Qi Q, Niture S, Kumar D. KCNQ1OT1: An Oncogenic Long Noncoding RNA. Biomolecules 2021; 11:1602. [PMID: 34827600 PMCID: PMC8615887 DOI: 10.3390/biom11111602] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/23/2021] [Accepted: 10/25/2021] [Indexed: 12/24/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) are transcripts greater than 200 nucleotides that do not code for proteins but regulate gene expression. Recent studies indicate that lncRNAs are involved in the modulation of biological functions in human disease. KCNQ1 Opposite Strand/Antisense Transcript 1 (KCNQ1OT1) encodes a lncRNA from the opposite strand of KCNQ1 in the CDKN1C/KCNQ1OT1 cluster that is reported to play a vital role in the development and progression of cancer. KCNQ1OT1 regulates cancer cell proliferation, cell cycle, migration and invasion, metastasis, glucose metabolism, and immune evasion. The aberrant expression of KCNQ1OT1 in cancer patients is associated with poor prognosis and decreased survival. This review summarizes recent literature related to the biological functions and molecular mechanisms of KCNQ1OT1 in various human cancers, including colorectal, bladder, breast, oral, melanoma, osteosarcoma, lung, glioma, ovarian, liver, acute myeloid leukemia, prostate, and gastric. We also discuss the role of KCNQ1OT1 as a promising diagnostic biomarker and a novel therapeutic target in human cancers.
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Affiliation(s)
| | | | | | - Deepak Kumar
- Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, Durham, NC 27707, USA; (P.C.); (Q.Q.); (S.N.)
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Liu Y, Zhang Y, Chen C, Li Y. lncRNA HIF1A-AS2: A potential oncogene in human cancers (Review). Biomed Rep 2021; 15:85. [PMID: 34512973 PMCID: PMC8411487 DOI: 10.3892/br.2021.1461] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 07/28/2021] [Indexed: 12/25/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are transcripts that are >200 nucleotides, but with no open reading frame. An increasing number of lncRNAs have been identified following the development of second-generation sequencing technologies, and they have since become a research hotspot. Functionally, they play a vital role in tumor progression, including in tumor proliferation, migration, invasion, apoptosis and acquisition of drug resistance. They regulate gene expression primarily through interaction with DNA, RNA and proteins at the epigenetic, transcriptional and post-transcriptional levels. Endogenous hypoxia-inducible factor 1α antisense RNA 2 (lncRNA HIF1A-AS2) is aberrantly expressed and involved the development/progression of various types of tumors, such as bladder cancer, glioblastoma, breast cancer and osteosarcoma. It plays a vital role in the proliferation, apoptosis, migration, invasion and epithelial-mesenchymal transformation of various tumor cells. This review summarizes the current body of knowledge on the biological functions and related molecular mechanisms of lncRNA HIF1A-AS2 in the development/progression of human tumors and other diseases.
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Affiliation(s)
- Yang Liu
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Yunyan Zhang
- Department of Stomatology, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong 510000, P.R. China
| | - Cha Chen
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Youqiang Li
- Department of Laboratory Medicine, The Affiliated Hexian Memorial Hospital of Southern Medical University, Guangzhou, Guangdong 511400, P.R. China
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Zhu Y, Shen Y, Chen R, Li H, Wu Y, Zhang F, Huang W, Guo L, Chen Q, Liu H. KCNQ1OT1 lncRNA affects the proliferation, apoptosis, and chemoresistance of small cell lung cancer cells via the JAK2/STAT3 axis. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:891. [PMID: 34164525 PMCID: PMC8184448 DOI: 10.21037/atm-21-1761] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background Small cell lung cancer (SCLC) is a devastating and aggressive neuroendocrine carcinoma characterized by high cellular proliferation and early metastatic spread. Numerous studies have demonstrated that long noncoding RNAs (lncRNAs) can regulate tumor generation and development, including in SCLC. The current study aimed to assess the effect of the lncRNA, KCNQ1OT1, on the proliferation, apoptosis, and chemoresistance of SCLC and the potential underlying molecular mechanism. Methods Matched chemo-resistant and sensitive cells were applied to RNA isolation and followed by expression profiling by microarray analysis and subsequent quantitative polymerase chain reaction (qPCR) validation. Cell viability and apoptosis were determined by Cell Counting Kit-8 and flow cytometry to examine the chemoresistance and apoptosis of KCNQ1OT1 knockdown with lentivirus-mediated RNA interference. Furthermore, cell proliferation was studied by colony formation, and invasion and migration were tested by Transwell cell invasion and wound-healing assays, respectively. A tumor xenograft model was established to determine the role of KCNQ1OT1 in tumor growth and chemoresistance in response to KCNQ1OT1 knockdown in vivo. Western blot analysis, qPCR, and immunohistochemistry were used to detect the levels of messenger RNA (mRNA) Janus kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) pathway-related markers. Results Higher expression of KCNQ1OT1 was detected in SCLC chemo-resistant verso chemo-sensitive cells. Knockdown of KCNQ1OT1 inhibited SCLC cell viability and cloning ability, hindered cell migration and invasion, induced apoptosis in vitro, and suppressed tumor growth and chemoresistance in vivo, by activating the JAK2/STAT3 signaling pathway. Conclusions This is the first study to indicate that lncRNA KCNQ1OT1 promotes cell proliferation and invasion, and prevents apoptosis of SCLC by activating the JAK2/STAT3 pathway.
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Affiliation(s)
- Yaru Zhu
- Department of Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yefeng Shen
- Institute for Pathology, University Hospital of Cologne, Cologne, Germany
| | - Rui Chen
- Department of Oncology, Jiujiang No. 1 People's Hospital, Jiujiang, China
| | - Hui Li
- Department of Thoracic Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yuanzhou Wu
- Department of Cardiac Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Fuwei Zhang
- Department of Thoracic Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Weimei Huang
- Department of Pathology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Linlang Guo
- Department of Pathology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Qunqing Chen
- Department of Thoracic Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Huanxin Liu
- Department of Pathology, Guangdong Provincial Corps Hospital of Chinese People's Armed Police Forces, Guangzhou Medical University, Guangzhou, China
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Zhong X, Wen X, Chen L, Gu N, Yu X, Sui K. Long non-coding RNA KCNQ1OT1 promotes the progression of gastric cancer via the miR-145-5p/ARF6 axis. J Gene Med 2021; 23:e3330. [PMID: 33682985 PMCID: PMC8244094 DOI: 10.1002/jgm.3330] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 02/24/2021] [Accepted: 02/24/2021] [Indexed: 01/25/2023] Open
Abstract
Background Long non‐coding RNA KCNQ1 opposite strand/antisense transcript one gene (KCNQ1OT1) has been reported to be involved in the progression of many types of human cancer, whereas its role in gastric cancer (GC) remains unknown. The present study aimed to investigate the role of KCNQ1OT1 in GC. Methods In total, 25 GC tissues and adjacent normal tissues were collected. The expression of KCNQ1OT1, miR‐145‐5p and ARF6 in GC tissues and cell lines was detected by quantitative reverse transcriptase‐polymerase chain reaction or western blotting. Bioinformatics analysis and a dual luciferase reporter assay were performed to determine the relationship between KCNQ1OT1 and miR‐145‐5p or miR‐145‐5p and ARF6. Gain‐ and loss‐of function of KCNQ1OT1 and miR‐145‐5p were achieved to confirm their roles in GC cells. Cell counting kit‐8, colony formation and flow cytometry assays were used to evaluate cell viability, proliferation and apoptosis. A xenograft tumor model was established with BGC803 tumor cells transfected with sh‐KCNQ1OT1 or empty vector to determine the role of LINC01089 in vivo. Results The expression levels of KCNQ1OT1 were markedly elevated in GC tissues and cells. Knockdown of KCNQ1OT1 inhibited GC tumor growth, reduced GC cell viability and colony formation, and induced GC cell apoptosis. The expression levels of miR‐145‐5p were significantly decreased in GC cells and correlated with the expression of KCNQ1OT1 in GC tumors. Moreover, KCNQ1OT1 directly binds with miR‐145‐5p, which is targeting ARF6. Knockdown of KCNQ1OT1 increased the expression levels of miR‐145‐5p. Inhibition of miR‐145‐5p increased the expression levels of KCNQ1OT1 and also attenuated the effects of knockdown of KCNQ1OT1 on the viability, proliferation and apoptosis of GC cells. In addition, overexpression of miR‐145‐5p reduced GC cell viability and colony formation and induced GC cell apoptosis, whereas overexpression of ARF6 attenuated the effects of overexpression of miR‐145‐5p on GC cell viability, colony formation and apoptosis. Conclusions KCNQ1OT1 can promote GC progression through the miR‐145‐5p/ARF6 axis. KCNQ1OT1 may serve as a therapeutic target and a diagnostic biomarker of GC.
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Affiliation(s)
- Xiongdong Zhong
- Department of Cardiothoracic Surgery, Zhuhai People's Hospital (Zhuhai hospital affiliated with Jinan University), Zhuhai City, Guangdong Province, China
| | - Xiaoyan Wen
- Department of Cardiothoracic Surgery, Zhuhai People's Hospital (Zhuhai hospital affiliated with Jinan University), Zhuhai City, Guangdong Province, China
| | - Lei Chen
- Department of Cardiothoracic Surgery, Zhuhai People's Hospital (Zhuhai hospital affiliated with Jinan University), Zhuhai City, Guangdong Province, China
| | - Ni Gu
- Department of Cardiothoracic Surgery, Zhuhai People's Hospital (Zhuhai hospital affiliated with Jinan University), Zhuhai City, Guangdong Province, China
| | - Xianchang Yu
- Department of Cardiothoracic Surgery, Zhuhai People's Hospital (Zhuhai hospital affiliated with Jinan University), Zhuhai City, Guangdong Province, China
| | - Kang Sui
- Department of Cardiothoracic Surgery, Zhuhai People's Hospital (Zhuhai hospital affiliated with Jinan University), Zhuhai City, Guangdong Province, China
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13
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Yuan F, Lou Z, Zhou Z, Yan X. Long non‑coding RNA KCNQ1OT1 promotes nasopharyngeal carcinoma cell cisplatin resistance via the miR‑454/USP47 axis. Int J Mol Med 2021; 47:54. [PMID: 33576460 PMCID: PMC7895519 DOI: 10.3892/ijmm.2021.4887] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 01/11/2021] [Indexed: 12/17/2022] Open
Abstract
Long non‑coding RNAs serve an essential role in drug resistance in various types of cancer, including lung, breast and bladder cancer. The present study aimed to investigate whether KCNQ1 opposite strand/antisense transcript 1 (KCNQ1OT1) was associated with cisplatin (DDP) resistance in nasopharyngeal carcinoma (NPC). KCNQ1OT1, microRNA (miR)‑454 and ubiquitin specific peptidase 47 (USP47) expression levels were measured via reverse transcription‑quantitative PCR. 5‑8F/DDP and SUNE‑1/DDP cell viability and chemosensitivity were assessed by performing Cell Counting Kit‑8 assays. Colony forming and Transwell assays were conducted to assess the effect of the KCNQ1OT1/miR‑454/USP47 axis on DDP resistance in NPC cells. The association between miR‑454 and KCNQ1OT1 or USP47 was verified via bioinformatics analysis, dual‑luciferase reporter assays and RIP assays. KCNQ1OT1 and USP47 expression levels were significantly upregulated, whereas miR‑454 expression levels were significantly downregulated in DDP‑resistant NPC cells compared with parental NPC cells. KCNQ1OT1 knockdown promoted chemosensitivity in DDP‑resistant NPC cells (5‑8F/DDP and SUNE‑1/DDP), as indicated by significantly decreased cell proliferation, migration and invasion in the short hairpin RNA (sh)KCNQ1OT1 group compared with the sh‑negative control (NC) group. Moreover, miR‑454 was identified as a target of KCNQ1OT1. KCNQ1OT1 overexpression significantly reversed miR‑454 overexpression‑mediated effects on NPC cell viability and DDP resistance. Furthermore, the results indicated that miR‑454 directly targeted USP47. Compared with the shNC group, USP47 knockdown significantly suppressed NPC cell viability and DDP resistance, which was significantly reversed by co‑transfection with miR‑454 inhibitor. Furthermore, compared with the shNC group, KCNQ1OT1 knockdown significantly downregulated USP47 expression, which was significantly counteracted by miR‑454 knockdown. Collectively, the results of the present study indicated that KCNQ1OT1 enhanced DDP resistance in NPC cells via the miR‑454/USP47 axis, suggesting a potential therapeutic target for patients with DDP‑resistant NPC.
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Affiliation(s)
- Feng Yuan
- Department of Otolaryngology, Zhuji Hospital Affiliated to Shaoxing College of Arts and Sciences, Zhuji, Zhejiang 311800, P.R. China
| | - Zhiping Lou
- Department of Otolaryngology, Zhuji Hospital Affiliated to Shaoxing College of Arts and Sciences, Zhuji, Zhejiang 311800, P.R. China
| | - Zhifeng Zhou
- Department of Otolaryngology, Zhuji Central Hospital, Zhuji, Zhejiang 311800, P.R. China
| | - Xiaojun Yan
- Department of Otorhinolaryngology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, P.R. China
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14
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Ferretti VA, León IE. Long Non-coding RNAs in Cisplatin Resistance in Osteosarcoma. Curr Treat Options Oncol 2021; 22:41. [PMID: 33745006 DOI: 10.1007/s11864-021-00839-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/18/2021] [Indexed: 12/14/2022]
Abstract
OPINION STATEMENT Osteosarcoma (OS), the most common primary malignant bone tumor, is a vastly aggressive disease in children and adolescents. Although dramatic progress in therapeutic strategies have achieved over the past several decades, the outcome remains poor for most patients with metastatic or recurrent OS. Nowadays, conventional treatment for OS patients is surgery combined with multidrug chemotherapy including doxorubicin, methotrexate, and cisplatin (CDDP). In this sense, cisplatin (CDDP) is one of the most drugs used in the treatment of OS but drug resistance to CDDP appears as a serious problem in the use of this drug in the treatment of OS. Thus, we consider that the understanding the molecular mechanisms and the genes involved that lead to CDDP resistance is essential to developing more effective treatments against OS. In this review, we present an outline of the key role of the long non-coding RNAs (lncRNAs) in CDDP resistance in OS. This overview is expected to contribute to understand the mechanisms of CDDP resistance in OS and the relationship of the expression regulation of several lncRNAs.
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Affiliation(s)
- Valeria A Ferretti
- Centro de Química Inorgánica, CEQUINOR (CONICET-UNLP), Bv, 120 1465, La Plata, Argentina
| | - Ignacio E León
- Centro de Química Inorgánica, CEQUINOR (CONICET-UNLP), Bv, 120 1465, La Plata, Argentina.
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15
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Peng S, Shi S, Tao G, Li Y, Xiao D, Wang L, He Q, Cai X, Xiao J. JKAMP inhibits the osteogenic capacity of adipose-derived stem cells in diabetic osteoporosis by modulating the Wnt signaling pathway through intragenic DNA methylation. Stem Cell Res Ther 2021; 12:120. [PMID: 33579371 PMCID: PMC7881648 DOI: 10.1186/s13287-021-02163-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 01/12/2021] [Indexed: 02/08/2023] Open
Abstract
Background Diabetic osteoporosis (DOP) is a systemic metabolic bone disease caused by diabetes mellitus (DM). Adipose-derived stem cells (ASCs) play an important role in bone regeneration. Our previous study confirmed that ASCs from DOP mice (DOP-ASCs) have a lower osteogenesis potential compared with control ASCs (CON-ASCs). However, the cause of this poor osteogenesis has not been elucidated. Therefore, this study investigated the underlying mechanism of the decline in the osteogenic potential of DOP-ASCs from the perspective of epigenetics and explored methods to enhance their osteogenic capacity. Methods The expression level of JNK1-associated membrane protein (JKAMP) and degree of DNA methylation in CON-ASCs and DOP-ASCs were measured by mRNA expression profiling and MeDIP sequencing, respectively. JKAMP small interfering RNA (siRNA) and a Jkamp overexpression plasmid were used to assess the role of JKAMP in osteogenic differentiation of CON-ASCs and DOP-ASCs. Immunofluorescence, qPCR, and western blotting were used to measure changes in expression of Wnt signaling pathway-related genes and osteogenesis-related molecules after osteogenesis induction. Alizarin red and ALP staining was used to confirm the osteogenic potential of stem cells. Bisulfite-specific PCR (BSP) was used to detect JKAMP methylation degree. Results Expression of JKAMP and osteogenesis-related molecules (RUNX2 and OPN) in DOP-ASCs was decreased significantly in comparison with CON-ASCs. JKAMP silencing inhibited the Wnt signaling pathway and reduced the osteogenic ability of CON-ASCs. Overexpression of JKAMP in DOP-ASCs rescued the impaired osteogenic capacity caused by DOP. Moreover, JKAMP in DOP-ASCs contained intragenic DNA hypermethylated regions related to the downregulation of JKAMP expression. Conclusions Intragenic DNA methylation inhibits the osteogenic ability of DOP-ASCs by suppressing expression of JKAMP and the Wnt signaling pathway. This study shows an epigenetic explanation for the reduced osteogenic ability of DOP-ASCs and provides a potential therapeutic target to prevent and treat osteoporosis.
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Affiliation(s)
- Shuanglin Peng
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.,National Key Clinical Specialty, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Sirong Shi
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Gang Tao
- Orofacial Reconstruction and Regeneration Laboratory, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Yanjing Li
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Dexuan Xiao
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Lang Wang
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Qing He
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Xiaoxiao Cai
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
| | - Jingang Xiao
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, China. .,National Key Clinical Specialty, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China. .,Orofacial Reconstruction and Regeneration Laboratory, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, China. .,Department of Oral Implantology, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, China.
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16
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Rezaei O, Tamizkar KH, Sharifi G, Taheri M, Ghafouri-Fard S. Emerging Role of Long Non-Coding RNAs in the Pathobiology of Glioblastoma. Front Oncol 2021; 10:625884. [PMID: 33634032 PMCID: PMC7901982 DOI: 10.3389/fonc.2020.625884] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 12/22/2020] [Indexed: 12/16/2022] Open
Abstract
Glioblastoma is the utmost aggressive diffuse kind of glioma which is originated from astrocytes, neural stem cells or progenitors. This malignant tumor has a poor survival rate. A number of genetic aberrations and somatic mutations have been associated with this kind of cancer. In recent times, the impact of long non-coding RNAs (lncRNAs) in glioblastoma has been underscored by several investigations. Up-regulation of a number of oncogenic lncRNAs such as H19, MALAT1, SNHGs, MIAT, UCA, HIF1A-AS2 and XIST in addition to down-regulation of other tumor suppressor lncRNAs namely GAS5, RNCR3 and NBAT1 indicate the role of these lncRNAs in the pathogenesis of glioblastoma. Several in vitro and a number of in vivo studies have demonstrated the contribution of these transcripts in the regulation of cell proliferation and apoptosis, cell survival, invasion and metastasis of glioblastoma cells. Moreover, some lncRNAs such as SBF2-AS1 are involved in conferring resistance to temozolomide. Finally, few circularRNAs have been identified that influence the evolution of glioblastoma. In this paper, we discuss the impacts of lncRNAs in the pathogenesis of glioblastoma, their applications as markers and their implications in the therapeutic responses in this kind of cancer.
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Affiliation(s)
- Omidvar Rezaei
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Guive Sharifi
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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17
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Ghafouri-Fard S, Shirvani-Farsani Z, Hussen BM, Taheri M. The critical roles of lncRNAs in the development of osteosarcoma. Biomed Pharmacother 2021; 135:111217. [PMID: 33433358 DOI: 10.1016/j.biopha.2021.111217] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/29/2020] [Accepted: 12/31/2020] [Indexed: 02/07/2023] Open
Abstract
Osteosarcoma is rare malignancy of childhood and adolescence, with high morbidity and mortality despite accomplishment of diverse therapeutic modalities. Identification of the underlying mechanism of osteosarcoma evolution would help in better management of this rare malignancy. Lots of investigations have described abnormal regulation of long non-coding RNAs (lncRNAs) in clinical specimens of osteosarcoma and the established cell lines. This malignancy has been associated with over-expression of TUG1, LOXL1-AS1, MIR100HG, NEAT1, HULC, ANRIL and a number of other lncRNAs, while under-expression of lots of lncRNAs including LncRNA-p21, FER1L4, GAS5, LncRNA NR_136400 and LINC-PINT. Expression amounts of LUCAT1, LINC00922, SNHG12, FOXC2-AS1 and OIP5-AS1 lncRNAs have been associated with response to a number of chemotherapeutic agents. Taken together, lncRNAs are possible targets for proposing novel advanced therapeutic modalities for osteosarcoma.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zeinab Shirvani-Farsani
- Department of Cell and Molecular Biology, Faculty of Life Sciences and Technology, Shahid Beheshti University G.C., Tehran, Iran
| | - Bashdar Mahmud Hussen
- Pharmacognosy Department, College of Pharmacy, Hawler Medical University, Erbil, Iraq
| | - Mohammad Taheri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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18
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Abula A, Saimaiti G, Maimaiti X, Wuqikun W, Abulaiti A, Ren P, Yusufu A. The stimulative function of long noncoding RNA CDKN2B-AS1 in osteosarcoma by targeting the microRNA-122/CCNG1 axis. J Recept Signal Transduct Res 2020; 42:71-79. [PMID: 33283575 DOI: 10.1080/10799893.2020.1850784] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Abulaiti Abula
- Department of Microrepair and Reconstruction, the First Affiliated Hospital of Xinjiang Medical University, Xinjiang, P.R China
| | - Guliayixiamu Saimaiti
- Department of Operation Room, the First Affiliated Hospital of Xinjiang Medical University, Xinjiang, P.R China
| | - Xayimardan Maimaiti
- Department of Microrepair and Reconstruction, the First Affiliated Hospital of Xinjiang Medical University, Xinjiang, P.R China
| | - Wumitijiang Wuqikun
- Department of Microrepair and Reconstruction, the First Affiliated Hospital of Xinjiang Medical University, Xinjiang, P.R China
| | - Alimujiang Abulaiti
- Department of Microrepair and Reconstruction, the First Affiliated Hospital of Xinjiang Medical University, Xinjiang, P.R China
| | - Peng Ren
- Department of Microrepair and Reconstruction, the First Affiliated Hospital of Xinjiang Medical University, Xinjiang, P.R China
| | - Aihemaitijiang Yusufu
- Department of Microrepair and Reconstruction, the First Affiliated Hospital of Xinjiang Medical University, Xinjiang, P.R China
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19
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Jin KT, Lu ZB, Lv JQ, Zhang JG. The role of long non-coding RNAs in mediating chemoresistance by modulating autophagy in cancer. RNA Biol 2020; 17:1727-1740. [PMID: 32129701 PMCID: PMC7714480 DOI: 10.1080/15476286.2020.1737787] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 02/19/2020] [Accepted: 02/21/2020] [Indexed: 12/13/2022] Open
Abstract
Cancer is a complex process in which protein-coding and non-coding genes play essential roles. Long noncoding RNAs (lncRNAs), as a subclass of noncoding genes, are implicated in various cancer processes including growth, proliferation, metastasis, and angiogenesis. Due to presence in body fluids such as blood and urine, lncRNAs have become novel biomarkers in cancer detection, diagnosis, progression, and therapy response. Remarkably, increasing evidence has verified that lncRNAs play essential roles in chemoresistance by targeting different signalling pathways. Autophagy, a highly conserved process in response to environmental stresses such as starvation and hypoxia, plays a paradoxical role in inducing resistance or sensitivity to chemotherapy agents. In this regard, we reviewed chemoresistance, the role of lncRNAs in cancer, and the role of lncRNAs in chemoresistance by modulating autophagy.
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Affiliation(s)
- Ke-Tao Jin
- Department of Colorectal Surgery, Shaoxing People’s Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, Zhejiang Province, P.R. China
| | - Ze-Bei Lu
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People’s Hospital (People’s Hospital of Hangzhou Medical College), Hangzhou, Zhejiang Province, P.R. China
| | - Jie-Qing Lv
- Department of Colorectal Surgery, Shaoxing People’s Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, Zhejiang Province, P.R. China
| | - Jun-Gang Zhang
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People’s Hospital (People’s Hospital of Hangzhou Medical College), Hangzhou, Zhejiang Province, P.R. China
- Hepatobiliary and Pancreatic Surgery, Zhejiang Provincial People’s Hospital (People’s Hospital of Hangzhou Medical College), Hangzhou, Zhejiang Province, P.R. China
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20
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Lapucci A, Perrone G, Di Paolo A, Napoli C, Landini I, Roviello G, Calosi L, Naccarato AG, Falcone A, Bani D, Mini E, Nobili S. PNN and KCNQ1OT1 Can Predict the Efficacy of Adjuvant Fluoropyrimidine-Based Chemotherapy in Colorectal Cancer Patients. Oncol Res 2020; 28:631-644. [PMID: 33208224 PMCID: PMC7962934 DOI: 10.3727/096504020x16056983169118] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The benefit of adjuvant chemotherapy in the early stages of colorectal cancer (CRC) is still disappointing and the prediction of treatment outcome quite difficult. Recently, through a transcriptomic approach, we evidenced a role of PNN and KCNQ1OT1 gene expression in predicting response to fluoropyrimidine-based adjuvant chemotherapy in stage III CRC patients. Thus, the aim of this study was to validate in an independent cohort of stages II–III CRC patients our previous findings. PNN and KCNQ1OT1 mRNA expression levels were evaluated in 74 formalin-fixed paraffin-embedded tumor and matched normal mucosa samples obtained by stages II–III CRC patients treated with fluoropyrimidine-based adjuvant chemotherapy. PININ, the protein encoded by PNN, was immunohistochemically evaluated in 15 tumor and corresponding normal mucosa samples, selected on the basis of a low, medium, or high mRNA expression tumor/mucosa ratio. PNN and KCNQ1OT1 mRNA mean expression levels were significantly higher in tumor compared with normal tissues. Patients with high PNN or KCNQ1OT1 tumor mRNA levels according to ROC-based cutoffs showed a shorter disease-free survival (DFS) compared with patients with low tumor mRNA gene expression. Also, patients with tumor mRNA expression values of both genes below the identified cutoffs had a significantly longer DFS compared with patients with the expression of one or both genes above the cutoffs. In a representative large cohort of stages II–III CRC untreated patients retrieved from GEO datasets, no difference in DFS was observed between patients with high and low PNN or KCNQ1OT1 gene expression levels. These data confirm our previous findings and underscore the relevance of PNN and KCNQ1OT1 expression in predicting DFS in early stages of CRC treated with fluoropyrimidine-based adjuvant chemotherapy. If further validated in a prospective case series, both biomarkers could be used to identify patients who benefit from this treatment and to offer alternative chemotherapy regimens to potential unresponsive patients. In relation to the suggested biological role of PNN and KCNQ1OT1 in CRC, they might also be exploited as potential therapeutic targets.
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Affiliation(s)
- Andrea Lapucci
- Department of Health Sciences, University of FlorenceFlorenceItaly
| | - Gabriele Perrone
- Department of Health Sciences, University of FlorenceFlorenceItaly
| | - Antonello Di Paolo
- Department of Clinical and Experimental Medicine, University of PisaPisaItaly
| | - Cristina Napoli
- Department of Health Sciences, University of FlorenceFlorenceItaly
| | - Ida Landini
- Department of Health Sciences, University of FlorenceFlorenceItaly
| | | | - Laura Calosi
- Department of Experimental and Clinical Medicine, University of FlorenceFlorenceItaly
| | - Antonio Giuseppe Naccarato
- Department of Translational Research and New Technologies in Medicine and Surgery, University of PisaPisaItaly
| | - Alfredo Falcone
- Department of Translational Research and New Technologies in Medicine and Surgery, University of PisaPisaItaly
| | - Daniele Bani
- Department of Experimental and Clinical Medicine, University of FlorenceFlorenceItaly
| | - Enrico Mini
- Department of Health Sciences, University of FlorenceFlorenceItaly
| | - Stefania Nobili
- Department of Health Sciences, University of FlorenceFlorenceItaly
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21
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Long Noncoding RNA KCNQ1OT1 Confers Gliomas Resistance to Temozolomide and Enhances Cell Growth by Retrieving PIM1 From miR-761. Cell Mol Neurobiol 2020; 42:695-708. [PMID: 32897512 DOI: 10.1007/s10571-020-00958-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 08/30/2020] [Indexed: 12/17/2022]
Abstract
Many studies have found that the dysregulation of long noncoding RNA (lncRNA) contributed to cancer initiation, progression, and recurrence via multiple signaling pathways. However, the underlying mechanisms of lncRNA in temozolomide (TMZ)-resistant gliomas were not well understood, hindering the improvement of TMZ-based therapies. The present study demonstrated that the lncRNA KCNQ1OT1 increased in TMZ-resistant glioma cells compared to the TMZ-sensitive cells. The introduction of KCNQ1OT1 promoted cell viability, clonogenicity, and rhodamine 123 efflux while hampering TMZ-induced apoptosis. Moreover, KCNQ1OT1 directly sponged miR-761, which decreased in TMZ-resistant sublines. The overexpression of miR-761 attenuated cell viability and clonogenicity, while triggering apoptosis and rhodamine 123 accumulation post-TMZ exposure, leading to a response to TMZ. The interaction between miR-761 and 3'-untranslated region of PIM1 attenuated PIM1-mediated signaling cascades. Furthermore, the knockdown of KCNQ1OT1 augmented the TMZ-induced tumor regression in TMZ-resistant U251 mouse models. Briefly, the present study evaluated that KCNQ1OT1 conferred TMZ resistance by releasing PIM1 expression from miR-761, resulting in the upregulation of PIM-mediated MDR1, c-Myc, and Survivin. The present findings demonstrated that the interplay of KCNQ1OT1: miR-761: PIM1 regulated chemoresistance in gliomas and provided a promising therapeutic target for TMZ-resistant glioma patients.
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22
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Zheng ZH, You HY, Feng YJ, Zhang ZT. LncRNA KCNQ1OT1 is a key factor in the reversal effect of curcumin on cisplatin resistance in the colorectal cancer cells. Mol Cell Biochem 2020; 476:2575-2585. [PMID: 32757174 DOI: 10.1007/s11010-020-03856-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 07/24/2020] [Indexed: 11/24/2022]
Abstract
The development of cisplatin resistance is a common cause of cancer recurrence in colorectal cancer (CRC). Though many studies have reported the oncogenic function of long non-coding RNA (LncRNA) KCNQ1OT1 in multiple cancers, few studies explored its role in cisplatin resistance of CRC. Curcumin is a natural phenolic compound extracted from turmeric, which can effectively suppress cisplatin resistance in CRC. This study aims to expound the role of KCNQ1OT1 in cisplatin resistance in CRC cells and whether KCNQ1OT1 participates in the reversal effect of curcumin on cisplatin resistance in CRC. The interplay between KCNQ1OT1 and miR-497 was determined using RNA pull-down assay and dual-luciferase reporter gene assay. The combination of B-cell lymphoma 2 (Bcl-2) and miR-497 was confirmed using dual-luciferase reporter gene assay. Compared with CRC cell line HCT8, the cisplatin-resistant CRC cell line HCT8/DDP exhibited a higher expression level of KCNQ1OT1. Functionally, the silence of KCNQ1OT1 suppressed proliferation and boosted apoptosis in HCT8/DDP cells. Subsequently, we found that KCNQ1OT1 could act as a sponge of miR-497 and remove the suppressive effect of miR-497 on Bcl-2 expression. Curcumin treatment restrained proliferation and facilitated apoptosis in HCT8/DDP cells. While KCNQ1OT1 overexpression removed the effect of curcumin on HCT8/DDP cells via miR-497/ Bcl-2 axis. Finally, the in vivo experiments showed that the inhibitory effect of curcumin on the growth of cisplatin-resistant CRC cells was reserved by the ectopic expression of KCNQ1OT1. In conclusion, KCNQ1OT1 aggravated cisplatin resistance in CRC cells via the miR-497/Bcl-2 axis. Administration of curcumin could effectively downregulate KCNQ1OT1 expression, thus reversing cisplatin resistance in CRC cells.
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Affiliation(s)
- Zhi-Hai Zheng
- Department of General Surgery, Beijing Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - He-Yi You
- Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yu-Jie Feng
- Department of General Surgery, Beijing Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Zhong-Tao Zhang
- Department of General Surgery, Beijing Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
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Zhang Y, Pu Y, Wang J, Li Z, Wang H. Research progress regarding the role of long non-coding RNAs in osteosarcoma. Oncol Lett 2020; 20:2606-2612. [PMID: 32782578 PMCID: PMC7400499 DOI: 10.3892/ol.2020.11807] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 05/29/2020] [Indexed: 12/16/2022] Open
Abstract
Osteosarcoma is a malignant tumor that occurs in children and adolescents. Although treatments for osteosarcoma have improved, the likelihood of survival remains low for most patients with metastasis and recurrence. Elucidating the mechanism underlying the development of osteosarcoma and chemotherapy resistance will be important to improve diagnosis and treatment. Long non-coding RNAs (lncRNAs), which are longer than 200 nucleotides in length and do not encode for proteins, have been shown to play a regulatory role in the occurrence and development of osteosarcoma, and are expected to serve as biomarkers and molecular targets. This review discusses the progress in the study of the role of lncRNAs in osteosarcoma, and highlights the recent developments in this field.
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Affiliation(s)
- Yanli Zhang
- Department of Orthopedics, Wuwei People's Hospital, Wuwei, Gansu 733000, P.R. China
| | - Yanchuan Pu
- Department of Orthopedics, Wuwei People's Hospital, Wuwei, Gansu 733000, P.R. China
| | - Jin Wang
- Department of Orthopedics, Wuwei People's Hospital, Wuwei, Gansu 733000, P.R. China
| | - Zicai Li
- Department of Orthopedics, Wuwei People's Hospital, Wuwei, Gansu 733000, P.R. China
| | - Hulin Wang
- Department of Orthopedics, Wuwei People's Hospital, Wuwei, Gansu 733000, P.R. China
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WITHDRAWN: LncRNA KCNQ1OT1 promotes cisplatin resistance of osteosarcoma cancer cells through the miR-335–5p/β-catenin axis. Genes Dis 2020. [DOI: 10.1016/j.gendis.2020.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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LncRNA KCNQ1OT1 sponges miR-34c-5p to promote osteosarcoma growth via ALDOA enhanced aerobic glycolysis. Cell Death Dis 2020; 11:278. [PMID: 32332718 PMCID: PMC7181648 DOI: 10.1038/s41419-020-2485-1] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 04/06/2020] [Accepted: 04/07/2020] [Indexed: 02/07/2023]
Abstract
Metabolic switch from oxidative phosphorylation to aerobic glycolysis, which is also called the Warburg effect, is a hallmark of osteosarcoma (OS) and leads to the enhancement of cell chemoresistance, growth, metastasis, and invasion. Emerging evidence indicates that long non-coding RNA (lncRNA) plays a crucial role in the Warburg effect of cancer cells. Here, we report that lncRNA KCNQ1OT1 was upregulated in OS. Meanwhile, functional experiments demonstrated that the KCNQ1OT1 facilitated proliferation and suppressed apoptosis of OS cells. In addition, KCNQ1OT1 contributed to the Warburg effect by stimulating aldolase A (ALDOA) expression. Furthermore, using bioinformatics analysis, luciferase reporter, RNA immunoprecipitation, and RNA pull-down assay, we identified that KCNQ1OT1 functions as a competing endogenous RNA (ceRNA) by sponging miR-34c-5p, which inhibited ALDOA expression by directly targeting its 3'UTR. Taken together, these data identified a key role of KCNQ1OT1 in glucose metabolism reprogramming of OS. Targeting the KCNQ1OT1/miR-34c-5p/ALDOA axis may be a potential therapeutic target in OS treatment.
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Chen Z, Zheng J, Hong H, Chen D, Deng L, Zhang X, Ling J, Wu L. lncRNA HOTAIRM1 promotes osteogenesis of hDFSCs by epigenetically regulating HOXA2 via DNMT1 in vitro. J Cell Physiol 2020; 235:8507-8519. [PMID: 32324272 DOI: 10.1002/jcp.29695] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 03/18/2020] [Accepted: 03/27/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Zhengyuan Chen
- Department of Orthodontics, Guanghua School of Stomatology Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‐sen University Guangzhou Guangdong China
| | - Jinxuan Zheng
- Department of Orthodontics, Guanghua School of Stomatology Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‐sen University Guangzhou Guangdong China
| | - Hong Hong
- Department of Orthodontics, Guanghua School of Stomatology Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‐sen University Guangzhou Guangdong China
| | - Dongru Chen
- Department of Orthodontics, Guanghua School of Stomatology Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‐sen University Guangzhou Guangdong China
| | - Lidi Deng
- Department of Orthodontics, Guanghua School of Stomatology Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‐sen University Guangzhou Guangdong China
| | - Xueqin Zhang
- Department of Orthodontics, Guanghua School of Stomatology Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‐sen University Guangzhou Guangdong China
| | - Junqi Ling
- Department of Orthodontics, Guanghua School of Stomatology Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‐sen University Guangzhou Guangdong China
| | - Liping Wu
- Department of Orthodontics, Guanghua School of Stomatology Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‐sen University Guangzhou Guangdong China
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Meng Y, Hao D, Huang Y, Jia S, Zhang J, He X, Sun L, Liu D. Positive feedback loop SP1/MIR17HG/miR-130a-3p promotes osteosarcoma proliferation and cisplatin resistance. Biochem Biophys Res Commun 2020; 521:739-745. [PMID: 31706574 DOI: 10.1016/j.bbrc.2019.10.180] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 10/26/2019] [Indexed: 12/12/2022]
Abstract
Long noncoding RNAs (lncRNAs) have been identified to be critical regulator in the osteosarcoma (OS) tumorigenesis. However, the role of lncRNA MIR17HG in the OS proliferation and chemotherapy resistance is still unclear. Here, this research aims to investigate the function of lncRNA MIR17HG in the OS proliferation and cisplatin resistance. Clinically, results revealed that higher MIR17HG expression was associated with shorter overall survival. Functional investigations indicated that MIR17HG promoted the proliferation, invasion and cisplatin resistance of OS cells in vitro, and the MIR17HG knockdown inhibited the growth in vivo. Mechanistically, MIR17HG targeted the miR-130a-3p/SP1 axis, moreover, transcription factor SP1 bind with the MIR17HG promoter region to promote its expression. Taken together, MIR17HG displays the tumor-promotive role in the progression of OS through SP1/MIR17HG/miR-130a-3p/SP1 feedback loop. Our findings might help us to offer novel therapeutic strategies for OS.
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Affiliation(s)
- Yibin Meng
- Department of Spine Surgery, Hong Hui Hospital, Xi'an Jiao Tong University, Xian, Shaanxi, 710000, China
| | - Dingjun Hao
- Department of Spine Surgery, Hong Hui Hospital, Xi'an Jiao Tong University, Xian, Shaanxi, 710000, China
| | - Yunfei Huang
- Department of Spine Surgery, Hong Hui Hospital, Xi'an Jiao Tong University, Xian, Shaanxi, 710000, China
| | - Shuaijun Jia
- Department of Spine Surgery, Hong Hui Hospital, Xi'an Jiao Tong University, Xian, Shaanxi, 710000, China
| | - Jianan Zhang
- Department of Spine Surgery, Hong Hui Hospital, Xi'an Jiao Tong University, Xian, Shaanxi, 710000, China
| | - Xirui He
- Department of Spine Surgery, Hong Hui Hospital, Xi'an Jiao Tong University, Xian, Shaanxi, 710000, China
| | - Liang Sun
- Department of Orthopaedic, Hong Hui Hospital, Xi'an Jiao Tong University, Xian, Shaanxi, 710000, China
| | - Deyin Liu
- Department of Orthopaedic, Hong Hui Hospital, Xi'an Jiao Tong University, Xian, Shaanxi, 710000, China.
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Liu H, Chen R, Kang F, Lai H, Wang Y. KCNQ1OT1 promotes ovarian cancer progression via modulating MIR-142-5p/CAPN10 axis. Mol Genet Genomic Med 2020; 8:e1077. [PMID: 31909901 PMCID: PMC7005641 DOI: 10.1002/mgg3.1077] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 11/09/2019] [Accepted: 11/17/2019] [Indexed: 12/11/2022] Open
Abstract
Background Long non‐coding RNA (lncRNA) has been regarded as crucial regulator for cancer progression. Roles of KCNQ1 opposite strand/antisense transcript 1 (KCNQ1OT1) in cancers including osteosarcoma and colon cancer have been previously reported. However, its role in ovarian cancer (OC) remains unclear. Methods Expression level of KCNQ1OT1 on OC cells and normal cell was analyzed with quantitative real‐time PCR. Gain and loss‐of‐function experiments were performed to analyze the biological roles of KCNQ1OT1 in OC. Moreover, whether KCNQ1OT1 functions its role via mediating MICRORNA‐142‐5p (MIR‐142‐5p)/calpain 10 (CAPN10) axis was analyzed. In addition, effects of KCNQ1OT1, MIR‐142‐5p, and CAPN10 on overall survival of OC patients were analyzed at Kaplan–Meier plotter website. Results We showed KCNQ1OT1 was elevated expression in OC cells and indicated poorer overall survival of OC patients. Besides, we found KCNQ1OT1 could promote OC cell proliferation and migration in vitro. Moreover, MIR‐142‐5p was found reduced expression, while CAPN10 was found elevated expression in OC cells compared with normal cell. Kaplan–Meier curve analysis showed low MIR‐142‐5p or high CAPN10 expression were indicators for poorer overall survival of OC patients. At length, we showed KCNQ1OT1 could regulate OC development via MIR‐142‐5p/CAPN10 axis. Conclusions Taken together, KCNQ1OT1 upregulates CAPN10 expression via sponging MIR‐142‐5p, thus promoting the proliferation and migration of OC.
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Affiliation(s)
- Hongli Liu
- Department of Gynecology, Women and Children's Hospital, School of Medicine, Xiamen University, Fujian, China
| | - Ruixin Chen
- Department of Gynecology, Women and Children's Hospital, School of Medicine, Xiamen University, Fujian, China
| | - Fenhong Kang
- Department of Gynecology, Women and Children's Hospital, School of Medicine, Xiamen University, Fujian, China
| | - Haiqing Lai
- Department of Gynecology, Women and Children's Hospital, School of Medicine, Xiamen University, Fujian, China
| | - Yanlong Wang
- Department of Gynecology, Women and Children's Hospital, School of Medicine, Xiamen University, Fujian, China
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LncRNA PCAT6 promotes tumor progression in osteosarcoma via activation of TGF-β pathway by sponging miR-185-5p. Biochem Biophys Res Commun 2020; 521:463-470. [DOI: 10.1016/j.bbrc.2019.10.136] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 10/18/2019] [Indexed: 02/07/2023]
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