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Zhan K, Pan H, Zhou Z, Tang W, Ye Z, Huang S, Luo L. Biological role of long non-coding RNA KCNQ1OT1 in cancer progression. Biomed Pharmacother 2023; 169:115876. [PMID: 37976888 DOI: 10.1016/j.biopha.2023.115876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/05/2023] [Accepted: 11/07/2023] [Indexed: 11/19/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) are a type of RNAs that are more than 200 nucleotides without protein-coding potential. In recent years, more and more attention has been paid to the role of lncRNAs in cancer pathogenesis. LncRNA KCNQ1 overlapping transcript 1 (KCNQ1OT1) is located on chromosome 11p15.5 with a total length of 91 kb and is highly expressed in various malignancies, which is closely related to tumor growth, lymph node metastasis, survival cycle and recurrence rate. In addition, KCNQ1OT1 is involved in the regulation of PI3K/AKT and Wnt/β-catenin signaling pathways. In this review, the mechanism and related progress of KCNQ1OT1 in different cancers were reviewed. It was found that KCNQ1OT1 can stabilize mRNA expression through sponging miRNA, which not only induced tumor cell proliferation, migration, invasion, drug resistance, epithelial-mesenchymal transition (EMT) and inhibited cell apoptosis in vitro, but also promoted tumor growth and metastasis in vivo. Therefore, as a new biomarker and therapeutic target, KCNQ1OT1 has broad prospects for the diagnosis and treatment of different cancers.
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Affiliation(s)
- Kai Zhan
- Dongguan Hospital of Guangzhou University of Chinese Medicine, Dongguan 523000, China
| | - Huafeng Pan
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Zhang Zhou
- Department of Anesthesiology, Wuhan Fourth Hospital, Wuhan 430000, China
| | - Wenqian Tang
- Department of Health Management Center, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan 430070, China
| | - Zhining Ye
- Dongguan Hospital of Guangzhou University of Chinese Medicine, Dongguan 523000, China
| | - Shaogang Huang
- Dongguan Hospital of Guangzhou University of Chinese Medicine, Dongguan 523000, China; The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510000, China
| | - Lei Luo
- Department of Health Management Center, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan 430070, China.
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Nie W, Zhang S, Gao X. Associations between KCNQ1OT1 genetic variation rs10766212 and susceptibility to colorectal cancer and clinical stage in a Chinese Han population. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2023; 64:354-358. [PMID: 37349861 DOI: 10.1002/em.22559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 01/08/2023] [Accepted: 06/22/2023] [Indexed: 06/24/2023]
Abstract
KCNQ1OT1 has been linked to the development and progression of colorectal cancer (CRC). As a result, functional polymorphisms in the KCNQ1OT1 gene may have a role in CRC formation and progression. The goal of this study was to see if the rs10766212 polymorphism on the KCNQ1OT1 gene was linked to CRC susceptibility and clinical stage in a Chinese Han population. The case-control research comprised a total of 576 CRC patients and 606 healthy controls. The genotype of the rs10766212 polymorphic locus was determined using the Sanger sequencing technique. We found that the KCNQ1OT1 rs10766212 polymorphism was not related to CRC susceptibility; however, it was connected with the clinical stage of CRC. Patients with CRC who had the rs10766212 T allele had a lower risk of stage III/IV tumors than those who had the rs10766212 C allele. Furthermore, CRC tissues with the rs10766212 CC genotype showed a significant negative connection between KCNQ1OT1 and hsa-miR-622 expression. The luciferase assay showed that the rs10766212 C allele might contribute to the adsorption of KCNQ1OT1 on hsa-miR-622. In conclusion, the rs10766212 polymorphism altering hsa-miR-622 binding is linked to the clinical stage of CRC and may serve as a biomarker for predicting CRC progression in the Chinese Han population. However, better-designed studies are still needed to confirm the current findings.
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Affiliation(s)
- Wanjia Nie
- School of Pharmacy, Yancheng Teachers' University, Yancheng, Jiangsu, China
| | - Shulong Zhang
- Department of General Surgery, Xuhui District Central Hospital, Zhongshan-Xuhui Hospital, Fudan University, Shanghai, China
| | - Xueren Gao
- School of Pharmacy, Yancheng Teachers' University, Yancheng, Jiangsu, China
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Chen Y, Jiang L, Xia L, Zhang G, Chen L. ThPOK inhibits the immune escape of gastric cancer cells by inducing STPG1 to inactivate the ERK pathway. BMC Immunol 2022; 23:16. [PMID: 35379170 PMCID: PMC8981657 DOI: 10.1186/s12865-022-00485-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 02/24/2022] [Indexed: 12/24/2022] Open
Abstract
Background Gastric cancer is the second most frequently diagnosed cancer worldwide. Weak immunogenicity helps cancer cells escape from immune elimination and grow into predominant subpopulations. This study aimed to investigate the effect of Zinc finger and BTB domain containing 7B (Zbtb7b, Alias ThPOK) on T cell activation after coculture with gastric cancer cells. Methods Cell Counting Kit-8 assay (CCK-8) was performed to explore the viability of gastric cancer cells. Flow cytometry analysis was used to measure CD3+ T cell proliferation and the ratio of activated IFN-γ+ T cells which were co-incubated with gastric cancer cells (HGC-27, SNU-1). The binding between ThPOK and the promoter of its target sperm tail PG-rich repeat containing 1 (STPG1) was explored using ChIP and luciferase reporter assays. Relative gene expression was quantified using RT-qPCR. Results ThPOK was expressed at a low level in gastric cancer tissues and cells at mRNA and protein levels. Gastric cancer patients with lower ThPOK expression had poorer prognosis. ThPOK overexpression suppressed gastric cancer cell viability and increased T cell activation. ThPOK served as a transcription factor for STPG1. STPG1 expression was also at a low level in the tissues and cells of gastric cancer. ThPOK positively regulated the mRNA and protein levels of STPG1 in gastric cancer cells. Moreover, ThPOK was demonstrated to bind with STPG1 promoter. STPG1 upregulation also exerted inhibitory effects on gastric cancer cell viability and T cell activation. Additionally, ThPOK and STPG1 were revealed to inactivate the ERK pathway in gastric cancer cells. Conclusion ThPOK inhibits gastric cancer cell viability and increases T cell activation by inducing STPG1 to inactivate the ERK pathway. Supplementary Information The online version contains supplementary material available at 10.1186/s12865-022-00485-5.
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Affiliation(s)
- Ying Chen
- Department of Gastroenterology, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, 168 Hongkong Road, Jiang'an District, Wuhan, 430015, Hubei, China
| | - Lili Jiang
- Department of Gastroenterology, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, 168 Hongkong Road, Jiang'an District, Wuhan, 430015, Hubei, China
| | - Lingli Xia
- Department of Gastroenterology, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, 168 Hongkong Road, Jiang'an District, Wuhan, 430015, Hubei, China
| | - Gang Zhang
- Department of Gastroenterology, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, 168 Hongkong Road, Jiang'an District, Wuhan, 430015, Hubei, China
| | - Lan Chen
- Department of Gastroenterology, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, 168 Hongkong Road, Jiang'an District, Wuhan, 430015, Hubei, China.
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Chang KT, Wu HJ, Liu CW, Li CY, Lin HY. A Novel Role of Arrhythmia-Related Gene KCNQ1 Revealed by Multi-Omic Analysis: Theragnostic Value and Potential Mechanisms in Lung Adenocarcinoma. Int J Mol Sci 2022; 23:ijms23042279. [PMID: 35216393 PMCID: PMC8874518 DOI: 10.3390/ijms23042279] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/08/2022] [Accepted: 02/17/2022] [Indexed: 12/12/2022] Open
Abstract
The early diagnosis, prognostic prediction, and personalized therapy of lung adenocarcinoma (LUAD) remains a challenging issue. KCNQ1 (potassium voltage-gated channel subfamily Q Member 1) is implicated in long QT syndrome (LQTS) and cardiac arrhythmia, while its significance in LUAD remains unclear. In this study, we aimed to explore the significance of KCNQ1 in terms of clinical value, tumor immunity, underlying mechanisms, and a precision medicine approach by means of multi-omics analysis. The association of KCNQ1 with LUAD was first explored. Both altered variants and high expression of KCNQ1 in a TCGA-LUAD cohort indicated a favorable outcome. KCNQ1 levels had a negative correlation with tumor proliferation index Ki67 levels. siRNA-knockdown of KCNQ1 promoted the migration ability of lung cancer cells. KCNQ1 levels were decreased in LUAD tissue compared to normal tissue. A receiver operating characteristic (ROC) curve indicated good diagnostic efficiency of KCNQ1. High KCNQ1 is associated with an immunoactive profile of immune infiltration and immunomodulators and is involved in the inhibition of the cell cycle and DNA replication. Lapatinib was identified as a potent drug for LUAD in the context of low KCNQ1. This study unveiled the significance of KCNQ1 in diagnosis and prognosis and provided a corresponding precision medicine strategy for LUAD.
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Affiliation(s)
- Kai-Tun Chang
- Department of Emergency Medicine, Show Chwan Memorial Hospital, Changhua 500, Taiwan;
| | - Hsing-Ju Wu
- Research Assistant Center, Show Chwan Memorial Hospital, Changhua 500, Taiwan;
- Department of Biology, National Changhua University of Education, Changhua 500, Taiwan
| | - Chien-Wei Liu
- Shueiduei Elementary School, Gukeng Township, Yulin 646, Taiwan;
| | - Chia-Ying Li
- Department of Surgery, Show Chwan Memorial Hospital, Changhua 500, Taiwan
- Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung 402, Taiwan
- Correspondence: (C.-Y.L.); (H.-Y.L.)
| | - Hung-Yu Lin
- Research Assistant Center, Show Chwan Memorial Hospital, Changhua 500, Taiwan;
- Correspondence: (C.-Y.L.); (H.-Y.L.)
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Pathophysiological role of ion channels and transporters in gastrointestinal mucosal diseases. Cell Mol Life Sci 2021; 78:8109-8125. [PMID: 34778915 PMCID: PMC8629801 DOI: 10.1007/s00018-021-04011-5] [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: 05/18/2021] [Revised: 09/10/2021] [Accepted: 10/23/2021] [Indexed: 11/13/2022]
Abstract
The incidence of gastrointestinal (GI) mucosal diseases, including various types of gastritis, ulcers, inflammatory bowel disease and GI cancer, is increasing. Therefore, it is necessary to identify new therapeutic targets. Ion channels/transporters are located on cell membranes, and tight junctions (TJs) affect acid–base balance, the mucus layer, permeability, the microbiota and mucosal blood flow, which are essential for maintaining GI mucosal integrity. As ion channel/transporter dysfunction results in various GI mucosal diseases, this review focuses on understanding the contribution of ion channels/transporters to protecting the GI mucosal barrier and the relationship between GI mucosal disease and ion channels/transporters, including Cl−/HCO3− exchangers, Cl− channels, aquaporins, Na+/H+ exchangers, and K+ channels. Here, we provide novel prospects for the treatment of GI mucosal diseases.
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Xia L, Jiang L, Chen Y, Zhang G, Chen L. ThPOK transcriptionally inactivates TNFRSF12A to increase the proliferation of T cells with the involvement of the NF-kB pathway. Cytokine 2021; 148:155658. [PMID: 34353698 DOI: 10.1016/j.cyto.2021.155658] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/05/2021] [Accepted: 07/19/2021] [Indexed: 01/20/2023]
Abstract
Gastric cancer (GC), originated from gastric mucosa, is a malignant tumor causing numerous deaths globally. The present study used the coculture of T cells with supernatant of the GC cells (HGC-27, SNU-1) and investigated the function and regulatory mechanism of Zinc finger and BTB domain containing 7B (ZBTB7B, alias ThPOK) on T cell proliferation. Flow cytometry analysis was used to measure the proliferation of CD3+ T cells and IFN-γ+ T cells. We found that low level of ThPOK was associated with poor prognosis in GC patients. ThPOK was lowly expressed in GC cells at the mRNA and protein levels. ThPOK overexpression inhibited GC cell viability and promoted proliferation of T cells. ThPOK was identified to function as a transcription factor for TNFRSF12A. TNFRSF12A was upregulated in GC tissues and cells and high level of TNFRSF12A was associated with poor prognosis in GC patients. ThPOK knockdown elevated TNFRSF12A level in GC cells. ThPOK was revealed to bind with the promoter of TNFRSF12A. TNFRSF12A silencing also inhibited GC cell viability and promoted T cell activation and proliferation. Additionally, ThPOK was demonstrated to inactivate the NF-kB pathway by downregulating TNFRSF12A in GC cells. Overall, ThPOK suppresses cell viability in GC and increases the activation and proliferation of T cells by targeting TNFRSF12A to inactivate the NF-kB pathway.
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Affiliation(s)
- Lingli Xia
- Department of Gastroenterology, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan 430015, Hubei, China
| | - Lili Jiang
- Department of Gastroenterology, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan 430015, Hubei, China
| | - Ying Chen
- Department of Gastroenterology, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan 430015, Hubei, China
| | - Gang Zhang
- Department of Gastroenterology, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan 430015, Hubei, China
| | - Lan Chen
- Department of Gastroenterology, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan 430015, Hubei, China.
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Zhang Z, Gu M, Gu Z, Lou YR. Role of Long Non-Coding RNA Polymorphisms in Cancer Chemotherapeutic Response. J Pers Med 2021; 11:jpm11060513. [PMID: 34199840 PMCID: PMC8228201 DOI: 10.3390/jpm11060513] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 05/28/2021] [Accepted: 06/02/2021] [Indexed: 12/12/2022] Open
Abstract
Genetic polymorphisms are defined as the presence of two or more different alleles in the same locus, with a frequency higher than 1% in the population. Since the discovery of long non-coding RNAs (lncRNAs), which refer to a non-coding RNA with a length of more than 200 nucleotides, their biological roles have been increasingly revealed in recent years. They regulate many cellular processes, from pluripotency to cancer. Interestingly, abnormal expression or dysfunction of lncRNAs is closely related to the occurrence of human diseases, including cancer and degenerative neurological diseases. Particularly, their polymorphisms have been found to be associated with altered drug response and/or drug toxicity in cancer treatment. However, molecular mechanisms are not yet fully elucidated, which are expected to be discovered by detailed studies of RNA–protein, RNA–DNA, and RNA–lipid interactions. In conclusion, lncRNAs polymorphisms may become biomarkers for predicting the response to chemotherapy in cancer patients. Here we review and discuss how gene polymorphisms of lncRNAs affect cancer chemotherapeutic response. This knowledge may pave the way to personalized oncology treatments.
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Affiliation(s)
- Zheng Zhang
- School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China;
| | - Meng Gu
- Department of Clinical Pharmacy and Pharmacy Administration, School of Pharmacy, Fudan University, Shanghai 201203, China;
| | - Zhongze Gu
- School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China;
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
- Correspondence: (Z.G.); (Y.-R.L.)
| | - Yan-Ru Lou
- Department of Clinical Pharmacy and Pharmacy Administration, School of Pharmacy, Fudan University, Shanghai 201203, China;
- Correspondence: (Z.G.); (Y.-R.L.)
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