1
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Gu Y, Liu M, Ma L, Quinn RJ. Identification of Ligands for Ion Channels: TRPM2. Chembiochem 2024; 25:e202300790. [PMID: 38242853 DOI: 10.1002/cbic.202300790] [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: 11/23/2023] [Revised: 01/09/2024] [Accepted: 01/17/2024] [Indexed: 01/21/2024]
Abstract
Transient receptor potential melastatin 2 (TRPM2) is a calcium-permeable, nonselective cation channel with a widespread distribution throughout the body. It is involved in many pathological and physiological processes, making it a potential therapeutic target for various diseases, including Alzheimer's disease, Parkinson's disease, and cancers. New analytical techniques are beneficial for gaining a deeper understanding of its involvement in disease pathogenesis and for advancing the drug discovery for TRPM2-related diseases. In this work, we present the application of collision-induced affinity selection mass spectrometry (CIAS-MS) for the direct identification of ligands binding to TRPM2. CIAS-MS circumvents the need for high mass detection typically associated with mass spectrometry of large membrane proteins. Instead, it focuses on the detection of small molecules dissociated from the ligand-protein-detergent complexes. This affinity selection approach consolidates all affinity selection steps within the mass spectrometer, resulting in a streamlined process. We showed the direct identification of a known TRPM2 ligand dissociated from the protein-ligand complex. We demonstrated that CIAS-MS can identify binding ligands from complex mixtures of compounds and screened a compound library against TRPM2. We investigated the impact of voltage increments and ligand concentrations on the dissociation behavior of the binding ligand, revealing a dose-dependent relationship.
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Affiliation(s)
- Yushu Gu
- Griffith Institute for Drug Discovery, Griffith University, 46 Don Young Rd, Brisbane, Queensland, 4111, Australia
| | - Miaomiao Liu
- Griffith Institute for Drug Discovery, Griffith University, 46 Don Young Rd, Brisbane, Queensland, 4111, Australia
| | - Linlin Ma
- Griffith Institute for Drug Discovery, Griffith University, 46 Don Young Rd, Brisbane, Queensland, 4111, Australia
- School of Environment and Science, Griffith University, N34 1.29, Nathan Campus, Brisbane, Queensland, 4111, Australia
| | - Ronald J Quinn
- Griffith Institute for Drug Discovery, Griffith University, 46 Don Young Rd, Brisbane, Queensland, 4111, Australia
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2
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Köles L, Ribiczey P, Szebeni A, Kádár K, Zelles T, Zsembery Á. The Role of TRPM7 in Oncogenesis. Int J Mol Sci 2024; 25:719. [PMID: 38255793 PMCID: PMC10815510 DOI: 10.3390/ijms25020719] [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: 11/28/2023] [Revised: 12/30/2023] [Accepted: 01/03/2024] [Indexed: 01/24/2024] Open
Abstract
This review summarizes the current understanding of the role of transient receptor potential melastatin-subfamily member 7 (TRPM7) channels in the pathophysiology of neoplastic diseases. The TRPM family represents the largest and most diverse group in the TRP superfamily. Its subtypes are expressed in virtually all human organs playing a central role in (patho)physiological events. The TRPM7 protein (along with TRPM2 and TRPM6) is unique in that it has kinase activity in addition to the channel function. Numerous studies demonstrate the role of TRPM7 chanzyme in tumorigenesis and in other tumor hallmarks such as proliferation, migration, invasion and metastasis. Here we provide an up-to-date overview about the possible role of TRMP7 in a broad range of malignancies such as tumors of the nervous system, head and neck cancers, malignant neoplasms of the upper gastrointestinal tract, colorectal carcinoma, lung cancer, neoplasms of the urinary system, breast cancer, malignant tumors of the female reproductive organs, prostate cancer and other neoplastic pathologies. Experimental data show that the increased expression and/or function of TRPM7 are observed in most malignant tumor types. Thus, TRPM7 chanzyme may be a promising target in tumor therapy.
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Affiliation(s)
- László Köles
- Department of Oral Biology, Semmelweis University, H-1089 Budapest, Hungary; (L.K.); (A.S.); (K.K.); (T.Z.)
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, H-1089 Budapest, Hungary
| | - Polett Ribiczey
- Department of Oral Biology, Semmelweis University, H-1089 Budapest, Hungary; (L.K.); (A.S.); (K.K.); (T.Z.)
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, H-1089 Budapest, Hungary
| | - Andrea Szebeni
- Department of Oral Biology, Semmelweis University, H-1089 Budapest, Hungary; (L.K.); (A.S.); (K.K.); (T.Z.)
| | - Kristóf Kádár
- Department of Oral Biology, Semmelweis University, H-1089 Budapest, Hungary; (L.K.); (A.S.); (K.K.); (T.Z.)
| | - Tibor Zelles
- Department of Oral Biology, Semmelweis University, H-1089 Budapest, Hungary; (L.K.); (A.S.); (K.K.); (T.Z.)
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, H-1089 Budapest, Hungary
- Laboratory of Molecular Pharmacology, Institute of Experimental Medicine, H-1083, Budapest, Hungary
| | - Ákos Zsembery
- Department of Oral Biology, Semmelweis University, H-1089 Budapest, Hungary; (L.K.); (A.S.); (K.K.); (T.Z.)
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3
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Capitani C, Chioccioli Altadonna G, Santillo M, Lastraioli E. Ion channels in lung cancer: biological and clinical relevance. Front Pharmacol 2023; 14:1283623. [PMID: 37942486 PMCID: PMC10627838 DOI: 10.3389/fphar.2023.1283623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 10/16/2023] [Indexed: 11/10/2023] Open
Abstract
Despite improvements in treatment, lung cancer is still a major health problem worldwide. Among lung cancer subtypes, the most frequent is represented by adenocarcinoma (belonging to the Non-Small Cell Lung Cancer class) although the most challenging and harder to treat is represented by Small Cell Lung Cancer, that occurs at lower frequency but has the worst prognosis. For these reasons, the standard of care for these patients is represented by a combination of surgery, radiation therapy and chemotherapy. In this view, searching for novel biomarkers that might help both in diagnosis and therapy is mandatory. In the last 30 years it was demonstrated that different families of ion channels are overexpressed in both lung cancer cell lines and primary tumours. The altered ion channel profile may be advantageous for diagnostic and therapeutic purposes since most of them are localised on the plasma membrane thus their detection is quite easy, as well as their block with specific drugs and antibodies. This review focuses on ion channels (Potassium, Sodium, Calcium, Chloride, Anion and Nicotinic Acetylcholine receptors) in lung cancer (both Non-Small Cell Lung Cancer and Small Cell Lung Cancer) and recapitulate the up-to-date knowledge about their role and clinical relevance for a potential use in the clinical setting, for lung cancer diagnosis and therapy.
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Affiliation(s)
- Chiara Capitani
- General Pathology Laboratory, Department of Experimental and Clinical Medicine, Internal Medicine Section, University of Florence, Florence, Italy
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Ginevra Chioccioli Altadonna
- General Pathology Laboratory, Department of Experimental and Clinical Medicine, Internal Medicine Section, University of Florence, Florence, Italy
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Michele Santillo
- General Pathology Laboratory, Department of Experimental and Clinical Medicine, Internal Medicine Section, University of Florence, Florence, Italy
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Elena Lastraioli
- General Pathology Laboratory, Department of Experimental and Clinical Medicine, Internal Medicine Section, University of Florence, Florence, Italy
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Davoodvandi A, Rafiyan M, Asemi Z, Matini SA. An epigenetic modulator with promising therapeutic impacts against gastrointestinal cancers: A mechanistic review on microRNA-195. Pathol Res Pract 2023; 248:154680. [PMID: 37467635 DOI: 10.1016/j.prp.2023.154680] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/06/2023] [Accepted: 07/07/2023] [Indexed: 07/21/2023]
Abstract
Due to their high prevalence, gastrointestinal cancers are one of the key causes of cancer-related death globally. The development of drug-resistant cancer cell populations is a major factor in the high mortality rate, and it affects about half of all cancer patients. Because of advances in our understanding of cancer molecular biology, non-coding RNAs (ncRNAs) have emerged as critical factors in the initiation and development of gastrointestinal cancers. Gene expression can be controlled in several ways by ncRNAs, including through epigenetic changes, interactions between microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) and proteins, and the function of lncRNAs as miRNA precursors or pseudogenes. As lncRNAs may be detected in the blood, circulating ncRNAs have emerged as a promising new class of non-invasive cancer biomarkers for use in the detection, staging, and prognosis of gastrointestinal cancers, as well as in the prediction of therapy efficacy. In this review, we assessed the role lncRNAs play in the progression, and maintenance of colorectal cancer, and how they might be used as therapeutic targets in the future.
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Affiliation(s)
- Amirhossein Davoodvandi
- Cancer Immunology Project (CIP), Universal Scientific Education and Research Network (USERN), Tehran, Iran; Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R. Iran.
| | - Mahdi Rafiyan
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R. Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R. Iran.
| | - Seyed Amirhassan Matini
- Department of Pathology, School of Medicine, Kashan University of Medical Sciences, Kashan, I.R. Iran.
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5
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Ali ES, Chakrabarty B, Ramproshad S, Mondal B, Kundu N, Sarkar C, Sharifi-Rad J, Calina D, Cho WC. TRPM2-mediated Ca 2+ signaling as a potential therapeutic target in cancer treatment: an updated review of its role in survival and proliferation of cancer cells. Cell Commun Signal 2023; 21:145. [PMID: 37337283 DOI: 10.1186/s12964-023-01149-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 04/28/2023] [Indexed: 06/21/2023] Open
Abstract
The transient receptor potential melastatin subfamily member 2 (TRPM2), a thermo and reactive oxygen species (ROS) sensitive Ca2+-permeable cation channel has a vital role in surviving the cell as well as defending the adaptability of various cell groups during and after oxidative stress. It shows higher expression in several cancers involving breast, pancreatic, prostate, melanoma, leukemia, and neuroblastoma, indicating it raises the survivability of cancerous cells. In various cancers including gastric cancers, and neuroblastoma, TRPM2 is known to conserve viability, and several underlying mechanisms of action have been proposed. Transcription factors are thought to activate TRPM2 channels, which is essential for cell proliferation and survival. In normal physiological conditions with an optimal expression of TRPM2, mitochondrial ROS is produced in optimal amounts while regulation of antioxidant expression is carried on. Depletion of TRPM2 overexpression or activity has been shown to improve ischemia-reperfusion injury in organ levels, reduce tumor growth and/or viability of various malignant cancers like breast, gastric, pancreatic, prostate, head and neck cancers, melanoma, neuroblastoma, T-cell and acute myelogenous leukemia. This updated and comprehensive review also analyzes the mechanisms by which TRPM2-mediated Ca2+ signaling can regulate the growth and survival of different types of cancer cells. Based on the discussion of the available data, it can be concluded that TRPM2 may be a unique therapeutic target in the treatment of several types of cancer. Video Abstract.
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Affiliation(s)
- Eunus S Ali
- College of Medicine and Public Health, Flinders University, Bedford Park, 5042, Australia
- Gaco Pharmaceuticals, Dhaka, 1000, Bangladesh
- Present Address: Department of Biochemistry and Molecular Genetics, and Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, 303 E Superior St, Chicago, IL, 60611, USA
| | | | - Sarker Ramproshad
- Department of Pharmacy, Ranada Prasad Shaha University, Narayanganj, 1400, Bangladesh
| | - Banani Mondal
- Department of Pharmacy, Ranada Prasad Shaha University, Narayanganj, 1400, Bangladesh
| | - Neloy Kundu
- Pharmacy Discipline, Khulna University, Khulna, 9208, Bangladesh
| | - Chandan Sarkar
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100, Bangladesh
| | | | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, Craiova, 200349, Romania.
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong, China.
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Cai Y, Yang Y, Zhang X, Ma Q, Li M. TRPM2-AS promotes the malignancy of osteosarcoma cells by targeting miR-15b-5p/PPM1D axis. Cell Cycle 2022; 21:835-850. [PMID: 35100080 PMCID: PMC8973373 DOI: 10.1080/15384101.2022.2033414] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Osteosarcoma (OS) is a malignant tumor with a low survival rate and a high incidence rate worldwide. Although research has reported the involvement of long non-coding RNAs (lncRNAs) in the pathogenesis of OS cells, the role of TRPM2-AS, miR-15b-5p, and PPM1D in OS progression remains unclear. This study aimed to examine the interaction of the TRPM2-AS/miR-15b-5p/PPM1D axis in OS cells to gain new insights into the molecular mechanism and pathogenesis of OS. After performing in vitro functional assays, we discovered that TRPM2-AS was overexpressed in OS cells. TRPM2-AS silencing impaired OS cell viability, proliferation, and migration, while it induced apoptosis in OS cells in vitro. Our experimental analysis also revealed that PPM1D is a direct target of miR-15b-5p. TRPM2-AS silencing was found to reverse the tumorigenic effect of the miR-15b-5p inhibitor, while the miR-15b-5p inhibitor restored the inhibition of OS caused by silencing PPM1D. Moreover, our findings revealed that miR-15b-5p exerted its tumor-suppressive role by directly targeting PPM1D. In conclusion, this study suggests that TRPM2-AS could promote OS cell malignancy by sponging miR-15b-5p/PPM1D axis.
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Affiliation(s)
- Yingchun Cai
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China,CONTACT Yingchun Cai Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou450052, Henan, China
| | - Yudan Yang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xudong Zhang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qingqing Ma
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Mengyi Li
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Wang W, Dai Y, Yang X, Xiong X. Long non-coding RNA TRPM2 antisense RNA as a potential therapeutic target promotes tumorigenesis and metastasis in esophageal cancer. Bioengineered 2022; 13:4397-4410. [PMID: 35156509 PMCID: PMC9208624 DOI: 10.1080/21655979.2022.2033412] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Esophageal cancer (EC) is one type of aggressive gastrointestinal cancers. The treatment of EC is challenging. Effective therapeutic targets require development. Long non-coding RNA TRPM2 antisense RNA (LncRNA TRPM2-AS) is considering a novel biomarker and therapeutic target for various types of cancer. However, the role of lncRNA TRPM2-AS in EC remains unknown. This study aimed to illustrate effects of LncRNA TRPM2-AS on EC growth and metastasis and potential underlying molecular mechanisms. LncRNA TRPM2-AS expression was determined in both EC tissues and cell lines by quantitative real-time polymerase-chain reaction (qRT-PCR). Cell proliferation ability was evaluated by cell counting kit-8 and colony formation assays. Cell apoptosis was analyzed by flow cytometry. Cell migration and invasion were determined using transwell. Epithelial–mesenchymal transition (EMT)-related markers expression were determined using qRT-PCR and Western blotting. Furthermore, potential lncRNA TRPM2-AS targeting miRNAs were predicted by public databases. The expression of five selected miRNAs were validated by qRT-PCR. We found that lncRNA TRPM2-AS expression was increased in EC tissues and cell lines compared with respective control. Silencing lncRNA TRPM2-AS suppressed EC cell proliferation, migration, and invasion while promoted cell apoptosis. Moreover, lncRNA TRPM2-AS knockdown reduced neural cadherin, vimentin, and matrix metallopeptidase 9 gene and protein expressions while increased epithelial cadherin expression. Furthermore, lncRNA TRPM2-AS knockdown promoted microRNA (miR)-1291, miR-6852-5p, and miR-138-5p expressions. Taken together, this study for the first time demonstrates that upregulation of lncRNA TRPM2-AS in EC promotes the growth and metastasis of EC likely through interacting with miR-1291, miR-6852-5p, and miR-138-5p.
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Affiliation(s)
- Wei Wang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou China
| | - Yukai Dai
- Department of Thoracic Surgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou China
| | - Xin Yang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou China
| | - Xinming Xiong
- Department of Thoracic Surgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou China
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Cutliffe AL, McKenna SL, Chandrashekar DS, Ng A, Devonshire G, Fitzgerald RC, O’Donovan TR, Mackrill JJ. Alterations in the Ca2+ toolkit in oesophageal adenocarcinoma. EXPLORATION OF TARGETED ANTI-TUMOR THERAPY 2021; 2:543-575. [PMID: 36046118 PMCID: PMC9400700 DOI: 10.37349/etat.2021.00063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 10/08/2021] [Indexed: 11/24/2022] Open
Abstract
Aim: To investigate alterations in transcription of genes, encoding Ca2+ toolkit proteins, in oesophageal adenocarcinoma (OAC) and to assess associations between gene expression, tumor grade, nodal-metastatic stage, and patient survival. Methods: The expression of 275 transcripts, encoding components of the Ca2+ toolkit, was analyzed in two OAC datasets: the Cancer Genome Atlas [via the University of Alabama Cancer (UALCAN) portal] and the oesophageal-cancer, clinical, and molecular stratification [Oesophageal Cancer Clinical and Molecular Stratification (OCCAMS)] dataset. Effects of differential expression of these genes on patient survival were determined using Kaplan-Meier log-rank tests. OAC grade- and metastatic-stage status was investigated for a subset of genes. Adjustment for the multiplicity of testing was made throughout. Results: Of the 275 Ca2+-toolkit genes analyzed, 75 displayed consistent changes in expression between OAC and normal tissue in both datasets. The channel-encoding genes, N-methyl-D-aspartate receptor 2D (GRIN2D), transient receptor potential (TRP) ion channel classical or canonical 4 (TRPC4), and TRP ion channel melastatin 2 (TRPM2) demonstrated the greatest increase in expression in OAC in both datasets. Nine genes were consistently upregulated in both datasets and were also associated with improved survival outcomes. The 6 top-ranking genes for the weighted significance of altered expression and survival outcomes were selected for further analysis: voltage-gated Ca2+ channel subunit α 1D (CACNA1D), voltage-gated Ca2+ channel auxiliary subunit α2 δ4 (CACNA2D4), junctophilin 1 (JPH1), acid-sensing ion channel 4 (ACCN4), TRPM5, and secretory pathway Ca2+ ATPase 2 (ATP2C2). CACNA1D, JPH1, and ATP2C2 were also upregulated in advanced OAC tumor grades and nodal-metastatic stages in both datasets. Conclusions: This study has unveiled alterations of the Ca2+ toolkit in OAC, compared to normal tissue. Such Ca2+ signalling findings are consistent with those from studies on other cancers. Genes that were consistently upregulated in both datasets might represent useful markers for patient diagnosis. Genes that were consistently upregulated, and which were associated with improved survival, might be useful markers for patient outcome. These survival-associated genes may also represent targets for the development of novel chemotherapeutic agents.
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Affiliation(s)
- Alana L. Cutliffe
- Department of Physiology, University College Cork, BioSciences Institute, T12 YT20 Cork, Ireland
| | - Sharon L. McKenna
- Cancer Research, UCC, Western Gateway Building, University College Cork, T12 XF62 Cork, Ireland
| | - Darshan S. Chandrashekar
- Department of Pathology, Molecular & Cellular, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - Alvin Ng
- Cancer Research UK Cambridge Institute, University of Cambridge Li Ka Shing Centre, Robinson Way, CB2 0RE Cambridge, UK
| | - Ginny Devonshire
- Cancer Research UK Cambridge Institute, University of Cambridge Li Ka Shing Centre, Robinson Way, CB2 0RE Cambridge, UK
| | - Rebecca C. Fitzgerald
- Cancer Research UK Cambridge Institute, University of Cambridge Li Ka Shing Centre, Robinson Way, CB2 0RE Cambridge, UK
| | - Tracey R. O’Donovan
- Cancer Research, UCC, Western Gateway Building, University College Cork, T12 XF62 Cork, Ireland
| | - John J. Mackrill
- Department of Physiology, University College Cork, BioSciences Institute, T12 YT20 Cork, Ireland
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Hsu WL, Noda M, Yoshioka T, Ito E. A novel strategy for treating cancer: understanding the role of Ca2+ signaling from nociceptive TRP channels in regulating cancer progression. EXPLORATION OF TARGETED ANTI-TUMOR THERAPY 2021; 2:401-415. [PMID: 36045706 PMCID: PMC9400763 DOI: 10.37349/etat.2021.00053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 08/12/2021] [Indexed: 11/19/2022] Open
Abstract
Cancer is an aging-associated disease and caused by genomic instability that is driven by the accumulation of mutations and epimutations in the aging process. Although Ca2+ signaling, reactive oxygen species (ROS) accumulation, DNA damage response (DDR) and senescence inflammation response (SIR) are processed during genomic instability, the underlying mechanism for the cause of genomic instability and cancer development is still poorly understood and needs to be investigated. Nociceptive transient receptor potential (TRP) channels, which firstly respond to environmental stimuli, such as microbes, chemicals or physical injuries, potentiate regulation of the aging process by Ca2+ signaling. In this review, the authors provide an explanation of the dual role of nociceptive TRP channels in regulating cancer progression, initiating cancer progression by aging-induced genomic instability, and promoting malignancy by epigenetic regulation. Thus, therapeutically targeting nociceptive TRP channels seems to be a novel strategy for treating cancers.
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Affiliation(s)
- Wen-Li Hsu
- Department of Dermatology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80145, Taiwan; Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Mami Noda
- Laboratory of Pathophysiology, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Tohru Yoshioka
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Graduate Institute of Medicine, School of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Etsuro Ito
- Graduate Institute of Medicine, School of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Waseda Research Institute for Science and Engineering, Waseda University, Tokyo 162-8480, Japan; Department of Biology, Waseda University, Tokyo 162-8480, Japan
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10
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Ghasemi T, Khalaj-Kondori M, Hosseinpour Feizi MA, Asadi P. Aberrant expression of lncRNAs SNHG6, TRPM2-AS1, MIR4435-2HG, and hypomethylation of TRPM2-AS1 promoter in colorectal cancer. Cell Biol Int 2021; 45:2464-2478. [PMID: 34431156 DOI: 10.1002/cbin.11692] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 08/08/2021] [Accepted: 08/22/2021] [Indexed: 01/30/2023]
Abstract
Accumulating evidence has indicated that deregulation of lncRNAs plays essential roles in colorectal cancer (CRC) carcinogenesis. The goal of this study was to analyze the expression of lncRNAs in colorectal cancer and their association with clinicopathological variables. Bioinformatics analysis of published CRC microarray data was performed to identify the important lncRNAs. The expression levels of candidate genes were assessed in the human colon cancer/normal cell lines, CRC, adenomatous colorectal polyps, and their marginal tissues by qRT-PCR. Moreover, the methylation status of the TRPM2-AS1 promoter was studied using qMSP assay. Furthermore, we investigated the molecular mechanisms of these lncRNAs in CRC progression using in silico analysis. Microarray analysis revealed that lncRNAs SNHG6, MIR4435-2HG, and TRPM2-AS1 were upregulated in CRC. These results were validated in colon cell lines. Moreover, qRT-PCR showed that the expression levels of SNHG6 and TRPM2-AS1 were upregulated in the colorectal tumor tissues compared with their paired tissues. Nonetheless, there was no significant increase in MIR4435-2HG expression in CRC samples. Furthermore, we observed a significant hypomethylation of TRPM2-AS1 promoter and its activation in CRC tissues. By in silico analysis, we found that the lncRNAs upregulation could promote proliferation and drug resistance of colorectal cancer cells via miRNAs sponging and modulation of their targets expression. In conclusion, based on our results upregulation of SNHG6 and TRPM2-AS1, and hypomethylation of TRPM2-AS1 promoter might be considered as potential diagnostic biomarkers for CRC initiation and development.
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Affiliation(s)
- Tayyebeh Ghasemi
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Mohammad Khalaj-Kondori
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | | | - Parviz Asadi
- Medical Science Division, Imam Sajjad Hospital, Islamic Azad University, Tabriz, Iran
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Ghafouri-Fard S, Aghabalazade A, Shoorei H, Majidpoor J, Taheri M, Mokhtari M. The Impact of lncRNAs and miRNAs on Apoptosis in Lung Cancer. Front Oncol 2021; 11:714795. [PMID: 34367998 PMCID: PMC8335161 DOI: 10.3389/fonc.2021.714795] [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: 05/25/2021] [Accepted: 07/08/2021] [Indexed: 12/13/2022] Open
Abstract
Apoptosis is a coordinated cellular process that occurs in several physiological situations. Dysregulation of apoptosis has been documented in numerous pathological situations, particularly cancer. Non-coding RNAs regulate apoptosis via different mechanisms. Lung cancer is among neoplastic conditions in which the role of non-coding RNAs in the regulation of apoptosis has been investigated. Non-coding RNAs that regulate apoptosis in lung cancer have functional interactions with PI3K/Akt, PTEN, GSK-3β, NF-κB, Bcl-2, Bax, p53, mTOR and other important cancer-related pathways. Globally, over-expression of apoptosis-blocking non-coding RNAs has been associated with poor prognosis of patients, while apoptosis-promoting ones have the opposite effect. In the current paper, we describe the impact of lncRNAs and miRNAs on cell apoptosis in lung cancer.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amin Aghabalazade
- Department of Pharmacology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamed Shoorei
- Department of Anatomical Sciences, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Jamal Majidpoor
- Department of Anatomical Sciences, School of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Mohammad Taheri
- Skull Base Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Mokhtari
- Critical Care Quality improvement Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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12
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Tian Y, Guan Y, Su Y, Yang T, Yu H. TRPM2-AS Promotes Bladder Cancer by Targeting miR-22-3p and Regulating GINS2 mRNA Expression. Onco Targets Ther 2021; 14:1219-1237. [PMID: 33658791 PMCID: PMC7914110 DOI: 10.2147/ott.s282151] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 01/19/2021] [Indexed: 12/24/2022] Open
Abstract
Background Bladder cancer (BLCA) refers to the malignancy growth that spreads from the bladder linings to the bladder muscles. However, the impact of miR-22-3p and lncRNA TRPM2-AS on this tumor has generated divergent views in the literature. This research aimed to study the effects of lncRNA TRPM2-AS on BLCA and its interaction with miR-22-3p and GINS2 mRNA. Methods qRT-PCR was employed to measure the expression of TRPM2-AS, miR-22-3p and GINS2 mRNA in bladder tissues and cells. The subcellular localization of TRPM2-AS in T24 and 5637 cell lines was identified using a cell fractionation system. Luciferase assay, RIP assay and RNA pull-down assay were later performed to validate the direct binding relationship between TRPM2-AS, miR-22-3p and GINS2 mRNA. Several experiments were conducted to determine the viability, proliferation, colony formation and apoptosis of the cell lines. Results Findings indicated that TRPM2-AS was significantly upregulated in BLCA tissues and cell lines. Apart from that, it was observed that TRPM2-AS knockdown significantly inhibited the viability, proliferation and colony formation of BCLA cells, but it promoted the apoptosis of the BCLA cells. A significant downstream target of TRPM2-AS, miR-22-3p was found to show a lower expression level in BLCA tissues and cell lines. However, the inhibition of miR-22-3p considerably enhanced BLCA cell phenotypes. As well as discovering that GINS2 mRNA was a downstream target of miR-22-3p and was significantly upregulated in BLCA, experimental results also indicated that the knockdown of GINS2 suppressed BLCA cell phenotypes. Conclusion This research confirmed that TRPM2-AS could promote BCLA by binding to miR-22-3p to increase GINS2 expression. This novel interactome in BLCA cell lines might provide more insights into BLCA therapy.
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Affiliation(s)
- Yudong Tian
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450000, People's Republic of China
| | - Yanbin Guan
- School of Pharmacy, Henan University of Traditional Chinese Medicine, Zhengzhou, Henan, 450046, People's Republic of China
| | - Yang Su
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450000, People's Republic of China
| | - Tao Yang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450000, People's Republic of China
| | - Haizhou Yu
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450000, People's Republic of China
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Cui D, Feng Y, Shi K, Zhang H, Qian R. Long non-coding RNA TRPM2-AS sponges microRNA-138-5p to activate epidermal growth factor receptor and PI3K/AKT signaling in non-small cell lung cancer. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1313. [PMID: 33209893 PMCID: PMC7661873 DOI: 10.21037/atm-20-6331] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background Long non-coding RNAs (lncRNAs) can play pivotal roles in tumor progression by acting as microRNA (miRNA) sponges. This study aimed to investigate the association of a novel lncRNA, TRPM2-AS, with the miR-138-5p/EGFR axis in the development of non-small cell lung cancer (NSCLC). Methods Sixty NSCLC tissues and paired adjacent non-tumor tissues were analyzed. The relative expression levels of TRPM2-AS, miR138-5p, and epidermal growth factor receptor (EGFR) and the interactions between them were analyzed. The NSCLC cell lines NCI-H1299 and A549 were transfected with TRPM2-AS shRNA/pcDNA, and miR-138-5p mimics. Cell proliferation, migration, invasion, and apoptosis were examined in response to different transfection conditions. Dual-luciferase reporter assay was performed to identify the target interactions between TRPM2-AS, miR-138-5p, and EGFR. A549 cells stably transfected with shRNA were injected into BALB/c null nude mice to establish a tumor xenograft model. Results TRPM2-AS was up-regulated in NSCLC tumors and cell lines. Cell proliferation, migration, and invasion were inhibited in NSCLC cells treated with sh-TRPM2-AS, while apoptosis was induced. The targeting of TRPM2-AS by miR138-5p and miR138-5p by EGFR were validated with dual-luciferase reporter assay. TRPM2-AS was found to be negatively correlated with miR138-5p but positively correlated with EGFR. PI3K/AKT/mTOR was activated by pcDNA-EGFR but inactivated by miR-138-5p mimics. In the tumor xenograft mouse model, sh-TRPM2-AS suppressed tumor formation, reduced the expression of EGFR and Ki67, and promoted tumor cell apoptosis. Conclusions Our results suggested that TRPM2-AS can increase the levels of EGFR via sponging miR-138-3p; this promoted NSCLC cell proliferation, migration, and invasion in vitro, and exacerbated tumors in vivo. These findings highlight TRPM2-AS/miR-138-5p as a potential target for reducing drug resistance in patients with NSCLC.
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Affiliation(s)
- Dong Cui
- Department of Thoracic Surgery, Henan Provincial Chest Hospital, Zhengzhou, China
| | - Yu Feng
- Department of Thoracic Surgery, Henan Provincial Chest Hospital, Zhengzhou, China
| | - Kefeng Shi
- Department of Thoracic Surgery, Henan Provincial Chest Hospital, Zhengzhou, China
| | - Huimin Zhang
- Department of Thoracic Surgery, Henan Provincial Chest Hospital, Zhengzhou, China
| | - Rulin Qian
- Department of Thoracic Surgery, Henan Provincial Chest Hospital, Zhengzhou, China
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14
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Wang N, Wang L, Pan X. Long Non-Coding RNA TRPM2-AS Promotes Cell Migration and Invasion by Serving as a ceRNA of miR-138 and Inducing SOX4-Mediated EMT in Laryngeal Squamous Cell Carcinoma. Cancer Manag Res 2020; 12:7805-7812. [PMID: 32922080 PMCID: PMC7457742 DOI: 10.2147/cmar.s265412] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 07/27/2020] [Indexed: 01/02/2023] Open
Abstract
Background Laryngeal squamous cell carcinoma (LSCC) is a common type of malignant tumors of larynx, and in this study, we aimed to evaluate the functional role of long non-coding RNA TRPM2-AS in LSCC. Methods The expression levels of TRPM2-AS in LSCC tissues and cell lines were detected by RT-qPCR analysis. In vitro functional assays, including MTT assay and transwell assay, were performed to explore the biological effects of TRPM2-AS on LSCC cells. The expression levels of EMT-relevant proteins were detected by Western blot analysis. The interaction between TRPM2-AS and miR-138 in LSCC, predicted by bioinformatic method, was verified by dual-luciferase reporter assay. Results We observed that TRPM2-AS was highly expressed in human LSCC tissues and cell lines. LSCC patients with advanced clinical stage exhibited higher intratumoral TRPM2-AS expression. The results of functional assays demonstrated that TRPM2-AS knockdown remarkably inhibited the proliferation, migration and invasion of LSCC cells, whereas TRPM2-AS overexpression showed opposite effects. In mechanism, we further observed that TRPM2-AS directly bound to miR-138 and served as competing endogenous RNA (ceRNA), thereby increasing SOX4 expression and promoting EMT in LSCC. The oncogenic effects of TRPM2-AS in LSCC cells were partly diminished by miR-138 restoration. Conclusion In short, our findings provided first evidence that TRPM2-AS is highly expressed and exerts its oncogenic role in LSCC partly by miR-138/SOX4 axis.
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Affiliation(s)
- Ning Wang
- Department of Otorhinolaryngology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, People's Republic of China.,Department of Otolaryngology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, Shandong 266035, People's Republic of China
| | - Lei Wang
- Department of Otolaryngology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, Shandong 266035, People's Republic of China
| | - Xinliang Pan
- Department of Otorhinolaryngology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, People's Republic of China.,Department of Otolaryngology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, Shandong 266035, People's Republic of China.,NHC Key Laboratory of Otorhinolaryngology (Shandong University), Jinan, Shandong 250012, People's Republic of China
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15
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Qin F, Lao L, Huang M, Tan H, Jin X, Ma X, Zeng J. Evaluation of the TRPM protein family as potential biomarkers for various types of human cancer using public database analyses. Exp Ther Med 2020; 20:770-785. [PMID: 32742323 PMCID: PMC7388292 DOI: 10.3892/etm.2020.8739] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 10/31/2019] [Indexed: 12/24/2022] Open
Abstract
The Transient Receptor Potential Melastatin (TRPM) protein family members have been demonstrated to be involved in a variety of different types of human cancer. However, to the best of our knowledge, there has not yet been a systematic study regarding the mRNA expression of the TRPM protein family or its prognostic value in human cancer. The present study investigated TRPM expression and its prognostic value in various human cancer types via the Oncomine database, Kaplan-Meier plotter, and the PrognoScan and Gene Expression Profiling Interactive Analysis databases. It was revealed that the transcriptional levels of TRPM1, TRPM3 and TRPM6 were decreased in the majority of cancer tissues, while TRPM2 was increased in most cancer types. In addition, the high or low transcriptional levels of the TRPM protein family members were associated with survival outcomes of different types of solid tumors. The present study suggested that certain TRPM protein family members may serve as useful biomarkers for cancer prognosis and anticancer targets for cancer treatment.
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Affiliation(s)
- Fuchuang Qin
- Department of Neurosurgery, Shulan (Hangzhou) Hospital, Hangzhou, Zhejiang 310003, P.R. China
| | - Lingdi Lao
- Department of Neurosurgery, Shulan (Hangzhou) Hospital, Hangzhou, Zhejiang 310003, P.R. China
| | - Minhua Huang
- Department of Neurobiology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310000, P.R. China
| | - Hang Tan
- Department of Neurosurgery, Hangzhou Mingzhou Brain Rehabilitation Hospital, Hangzhou, Zhejiang 310012, P.R. China
| | - Xuhong Jin
- Department of Osteology, Hangzhou Red Cross Hospital, Hangzhou, Zhejiang 310004, P.R. China
| | - Xilie Ma
- Department of Osteology, Hangzhou Red Cross Hospital, Hangzhou, Zhejiang 310004, P.R. China
| | - Jianping Zeng
- Department of Neurosurgery, The First Affiliated Hospital of Medical School of Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
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16
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Novel Therapeutic Approaches of Ion Channels and Transporters in Cancer. Rev Physiol Biochem Pharmacol 2020; 183:45-101. [PMID: 32715321 DOI: 10.1007/112_2020_28] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The expression and function of many ion channels and transporters in cancer cells display major differences in comparison to those from healthy cells. These differences provide the cancer cells with advantages for tumor development. Accordingly, targeting ion channels and transporters have beneficial anticancer effects including inhibition of cancer cell proliferation, migration, invasion, metastasis, tumor vascularization, and chemotherapy resistance, as well as promoting apoptosis. Some of the molecular mechanisms associating ion channels and transporters with cancer include the participation of oxidative stress, immune response, metabolic pathways, drug synergism, as well as noncanonical functions of ion channels. This diversity of mechanisms offers an exciting possibility to suggest novel and more effective therapeutic approaches to fight cancer. Here, we review and discuss most of the current knowledge suggesting novel therapeutic approaches for cancer therapy targeting ion channels and transporters. The role and regulation of ion channels and transporters in cancer provide a plethora of exceptional opportunities in drug design, as well as novel and promising therapeutic approaches that may be used for the benefit of cancer patients.
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17
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Long noncoding RNA TRPM2-AS acts as a microRNA sponge of miR-612 to promote gastric cancer progression and radioresistance. Oncogenesis 2020; 9:29. [PMID: 32123162 PMCID: PMC7052141 DOI: 10.1038/s41389-020-0215-2] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 02/11/2020] [Accepted: 02/17/2020] [Indexed: 01/27/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) are emerging as important regulators of tumorigenesis and are frequently dysregulated in cancers. Here, we identify a critical lncRNA TRPM2-AS which is aberrantly expressed in gastric cancer (GC) tissues by screening The Cancer Genome Atlas Program(TCGA) database of GC cohort, and its upregulation is clinically associated with advanced pathologic stages and poor prognosis in GC patients. Silencing TRPM2-AS inhibits the proliferation, metastasis and radioresistance of GC cell whereas ectopic expression of TRPM2-AS significantly improves the progression of GC cell in multiple experiments. Mechanistically, TRPM2-AS serves as a microRNA sponge or a competitive endogenous RNA (ceRNA) for tumor suppressive microRNA miR-612 and consequently modulates the derepression of IGF2BP1 and FOXM1. Moreover, induced upregulation of IGF2BP1 subsequently increases the expression of c-Myc and promotes GC cell progression. Meanwhile, TRPM2-AS promotes the radioreistance of GC cell through enhancing the expression of FOXM1 as well. Thus, our findings support a new regulatory axis between TRPM2-AS, miR-612, IGF2BP1, or FOXM1 which serve as crucial effectors in GC tumorigenesis and malignant development, suggesting a promising therapeutic and diagnostic direction for GC.
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18
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Associations Between Genomic Variants in lncRNA-TRPM2-AS and lncRNA-HNF1A-AS1 Genes and Risk of Multiple Sclerosis. J Mol Neurosci 2020; 70:1050-1055. [PMID: 32100228 DOI: 10.1007/s12031-020-01504-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 02/05/2020] [Indexed: 01/12/2023]
Abstract
Multiple sclerosis (MS) is a complex genetic trait characterized by demyelination of central nervous system (CNS), inflammation, and progressive neurological dysfunction. There is evidenced that autophagy and stress mechanisms are tightly linked with MS. Previous studies have demonstrated that LncRNAs TRPM2-AS and HNF1A-AS1 are involved in oxidative stress and autophagy, respectively. In the current study, we investigated the association of TRPM2-AS and HNF1A-AS1 single nucleotide polymorphisms (SNPs) with MS risk in 300 Iranian patients and 300 healthy controls. Our results have shown that T allele of the rs933151 was statistically significant underrepresented in MS patients compared with healthy subjects (OR (95% CI) = 0.696 (0.532-0.911), P = 0.005). This SNP was associated with lower MS risk in codominant and dominant models (OR (95% CI) = 0.68 (0.48-0.96), P value = 0.032; OR (95% CI) = 0.65 (0.47-0.91), P value = 0.012, respectively). The rs7953249 was not associated with MS susceptibility in any inheritance models (P values of 0.73, 0.46, 0.61, and 0.71 for codominant, dominant, recessive, and overdominant models, respectively). Present study highlighted a novel association at the TRPM2-AS gene (SNP rs933151) with MS susceptibility.
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19
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Bao MH, Lv QL, Szeto V, Wong R, Zhu SZ, Zhang YY, Feng ZP, Sun HS. TRPM2-AS inhibits the growth, migration, and invasion of gliomas through JNK, c-Jun, and RGS4. J Cell Physiol 2019; 235:4594-4604. [PMID: 31637708 DOI: 10.1002/jcp.29336] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 09/30/2019] [Indexed: 01/05/2023]
Abstract
Gliomas are a group of brain cancers with high mortality and morbidity. Understanding the molecular mechanisms is important for the prevention or treatment of gliomas. The present study was to investigate the effects and mechanisms of long noncoding RNA TRPM2-AS in gliomas proliferation, migration, and invasion. We first compared the levels of TRPM2-AS in 111 patients with glioma to that of the normal control group by a quantitative polymerase chain reaction. The results indicated a significant increase of TRPM2-AS in patients with glioma (2.43 folds of control, p = .0135). MTT methods, wound healing assays, transwell analysis, and clone formation analysis indicated the overexpression of TRPM2-AS promoted the proliferation, migration, and invasion of U251 and U87 cells, while downregulation of TRPM2-AS inhibited the cell proliferation, migration, and invasion significantly (p < .05). To further uncover the mechanisms, bioinformatics analysis was conducted on the expression profiles, GSE40687 and GSE4290, from the Gene Expression Omnibus database. One hundred fifty-six genes were differentially expressed in both datasets (FC > 2.0; p = .05). Among these differentially expressed genes, the level of RGS4 messenger RNA was drastically regulated by TRPM2-AS. Further western-blot analysis indicated the increase of RGS4 protein expression and decrease of p-JNK/JNK and p-c-Jun/c-Jun ratio after TRPM2-AS overexpression. On the other hand, inhibition of TRPM2-AS by small interfering RNA suppressed the expression of RGS4 and promoted the ratios of p-JNK/JNK and p-c-Jun/c-Jun. The present work indicated the mechanisms of the participation of TRPM2-AS in the progression of gliomas might, at least partly, be related to JNK, c-Jun, and RGS4. Our work provided new insights into the underlying mechanisms of glioma cellular functions.
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Affiliation(s)
- Mei-Hua Bao
- Department of Physiology, Pathophysiology, and Pharmacology, Science Research Center, Changsha Medical University, Changsha, China.,Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Department of Surgery, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Qiao-Li Lv
- Jiangxi Key Laboratory of Translational Cancer Research, Department of Head and Neck Surgery, Jiangxi Cancer Hospital, Nanchang, Jiangxi, China
| | - Vivian Szeto
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Raymond Wong
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Su-Zhen Zhu
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Department of Surgery, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Ying-Ying Zhang
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Zhong-Ping Feng
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Hong-Shuo Sun
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Department of Surgery, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
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20
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Wong KK, Banham AH, Yaacob NS, Nur Husna SM. The oncogenic roles of TRPM ion channels in cancer. J Cell Physiol 2019; 234:14556-14573. [PMID: 30710353 DOI: 10.1002/jcp.28168] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 01/10/2019] [Indexed: 01/24/2023]
Abstract
Transient receptor potential (TRP) proteins are a diverse family of ion channels present in multiple types of tissues. They function as gatekeepers for responses to sensory stimuli including temperature, vision, taste, and pain through their activities in conducting ion fluxes. The TRPM (melastatin) subfamily consists of eight members (i.e., TRPM1-8), which collectively regulate fluxes of various types of cations such as K+ , Na+ , Ca2+ , and Mg2+ . Growing evidence in the past two decades indicates that TRPM ion channels, their isoforms, or long noncoding RNAs encoded within the locus may be oncogenes involved in the regulation of cancer cell growth, proliferation, autophagy, invasion, and epithelial-mesenchymal transition, and their significant association with poor clinical outcomes of cancer patients. In this review, we describe and discuss recent findings implicating TRPM channels in different malignancies, their functions, mechanisms, and signaling pathways involved in cancers, as well as summarizing their normal physiological functions and the availability of ion channel pharmacological inhibitors.
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Affiliation(s)
- Kah Keng Wong
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Alison H Banham
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Nik Soriani Yaacob
- Department of Chemical Pathology, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, Kubang Kerian, Kelantan, Malaysia
| | - Siti Muhamad Nur Husna
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
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21
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Huang B, Chang C, Wang BL, Li H. ELK1-induced upregulation of lncRNA TRPM2-AS promotes tumor progression in gastric cancer by regulating miR-195/ HMGA1 axis. J Cell Biochem 2019; 120:16921-16933. [PMID: 31104318 DOI: 10.1002/jcb.28951] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 04/24/2019] [Accepted: 04/29/2019] [Indexed: 02/06/2023]
Abstract
Long noncoding RNAs (lncRNAs) have been confirmed to be aberrantly expressed in various diseases including tumors. Recently, a new tumor-related lncRNA, lncRNA TRPM2 antisense RNA (TRPM2-AS), was shown to be involved in many tumors, such as lung cancer and breast cancer. However, the expression and role of TRPM2-AS in the development of gastric cancer (GC) have not been elucidated. In the current study, we provided evidence that the expression levels of TRPM2-AS were increased in both GC tissues and cell lines. We also showed that overexpression of TRPM2-AS was modulated by ELK1, a transcription factor. The results of clinical assays showed that higher expressions of TRPM2-AS were significantly related with invasion depth, TNM stage, lymphatic metastasis, and shorter overall survival. Further clinical assays using multivariate analysis suggested that TRPM2-AS expression was an independent prognostic factor in patients with GC. Functional experiments illustrated that depression of TRPM2-AS suppressed proliferation, migration, and invasion in GC cells. In terms of mechanism, we found that TRPM2-AS directly inhibited miR-195, which targeted the 3'-untranslated region of high-mobility group AT-hook 1 (HMGA1) messenger RNA. Overall, these findings revealed that ELK1-induced overexpression of TRPM2-AS promoted the development and progression of GC in part through miR-195/HMGA1 signaling axis, and established its candidacy as a new cancer biomarker for GC patients.
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Affiliation(s)
- Bo Huang
- Department of General Surgery, Guangzhou Red Cross Hospital, Guangzhou, Guangdong, China
| | - Cheng Chang
- Department of General Surgery, Guangzhou Red Cross Hospital, Guangzhou, Guangdong, China
| | - Bai-Lin Wang
- Department of General Surgery, Guangzhou Red Cross Hospital, Guangzhou, Guangdong, China
| | - Huiwen Li
- Department of Gastroenterology, Guangzhou Women and Children Medical Center, Guangzhou, Guangdong, China
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22
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Geng J, Lu M, Li W. Transient receptor potential melastatin 2–antisense RNA is overexpresed in osteosarcoma and regulates cell proliferation and apoptosis. J Cell Biochem 2019. [DOI: 10.1002/jcb.28104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jie Geng
- Department of Spine Surgery Luoyang Orthopedic Hospital of Henan Province Luoyang China
| | - Ming Lu
- Department of Orthopedics Chinese PLA General Hospital Beijing China
| | - Wuyin Li
- President Office Luoyang Orthopedic Hospital of Henan Province, Orthopedic Hospital of Henan Province Luoyang China
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Abstract
The TRP ion channel TRPM2 has an essential function in cell survival and protects the viability of a number of cell types after oxidative stress. It is highly expressed in many cancers including breast, prostate, and pancreatic cancer, melanoma, leukemia, and neuroblastoma, suggesting it promotes cancer cell survival. TRPM2 is activated by production of ADP-ribose (ADPR) following oxidative stress, which binds to the C-terminus of TRPM2, resulting in channel opening. In a number of cancers including neuroblastoma, TRPM2 has been shown to preserve viability and mechanisms have been identified. Activation of TRPM2 results in expression of transcription factors and kinases important in cell proliferation and survival including HIF-1/2α, CREB, nuclear factor (erythroid-derived 2)-related factor-2 (Nrf2), and Pyk2, and Src phosphorylation. Together, HIF-1/2α and CREB regulate expression of genes encoding proteins with roles in mitochondrial function including members of the electron transport complex involved in ATP production. These contribute to lower mitochondrial ROS production while expression of antioxidants regulated by HIF-1/2α, FOXO3a, CREB, and Nrf2 is maintained. CREB is also important in control of expression of key proteins involved in autophagy. When TRPM2-mediated calcium influx is inhibited, mitochondria are dysfunctional, cellular bioenergetics are reduced, production of ROS is increased, and autophagy and DNA repair are impaired, decreasing tumor growth and increasing chemotherapy sensitivity. Inhibition of TRPM2 expression or function results in decreased tumor proliferation and/or viability in many malignancies including breast, gastric, pancreatic, prostate, head and neck cancers, melanoma, neuroblastoma, and T-cell and acute myelogenous leukemia. However, in a small number of malignancies, activation of TRPM2 rather than inhibition has been reported to reduce tumor cell survival. Here, TRPM2-mediated Ca2+ signaling and mechanisms of regulation of cancer cell growth and survival are reviewed and controversies discussed. Evidence suggests that targeting TRPM2 may be a novel therapeutic approach in many cancers.
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Affiliation(s)
- Barbara A Miller
- Departments of Pediatrics, and Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, P.O. Box 850, Hershey, PA 17033, USA.
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Abu N, Hon KW, Jeyaraman S, Jamal R. Long noncoding RNAs as biotargets in cisplatin-based drug resistance. Future Oncol 2018; 14:3085-3095. [PMID: 30468082 DOI: 10.2217/fon-2018-0303] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Since its discovery, cisplatin has become the key drug in chemotherapy for cancers. Nevertheless, chemoresistance in cancers has become an impediment in using cisplatin for cancer treatment. The resistance toward cisplatin is multifaceted as it involves multiple cellular pathways. Ever since the knowledge of long noncoding RNAs as modulators of various molecular pathways came to light, the interest in the biological function of lncRNAs as biomarkers has increased dramatically. Numerous studies have reported the link between the dysregulation of lncRNAs and drug resistance in cancers. More importantly, several lncRNAs were found to be vital in regulating cisplatin resistance. Therefore, this review summarizes the recent efforts in linking between cisplatin resistance and different types of lncRNAs.
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Affiliation(s)
- Nadiah Abu
- UKM Medical Molecular Biology Institute (UMBI), UKM Medical Center, Jalan Yaacob Latiff, Cheras 56000, Kuala Lumpur, Malaysia
| | - Kha Wai Hon
- UKM Medical Molecular Biology Institute (UMBI), UKM Medical Center, Jalan Yaacob Latiff, Cheras 56000, Kuala Lumpur, Malaysia
| | - Shivapriya Jeyaraman
- UKM Medical Molecular Biology Institute (UMBI), UKM Medical Center, Jalan Yaacob Latiff, Cheras 56000, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), UKM Medical Center, Jalan Yaacob Latiff, Cheras 56000, Kuala Lumpur, Malaysia
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Guan ZB, Cao YS, Li Y, Tong WN, Zhuo AS. Knockdown of lncRNA GHET1 suppresses cell proliferation, invasion and LATS1/YAP pathway in non small cell lung cancer. Cancer Biomark 2018; 21:557-563. [PMID: 29286919 DOI: 10.3233/cbm-170431] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND The aim in this study was to explore the role of long non-coding RNA GHET1 in development of non small cell lung cancer (NSCLC). METHODS LncRNA GHET1 expression levels were analyzed by qRT-PCR in tumor tissues and adjacent normal tissues in NSCLC. Measuring the cell proliferation and invasion abilities by CCK8, cell colony formation and transwell invasion assays. Relative protein expression was analyzed by western blot assays. RESULTS Expression of lncRNA GHET1 was notably higher in NSCLC tissues compared with adjacent normal tissues by using qRT-PCR analyses. Higher lncRNA GHET1 expression associated with lymph node metastasis, TNM stage and showed poor outcome in NSCLC patients. Knockdown of lncRNA GHET1 suppressed cell proliferation and invasion capacity and Epithelial-Mesenchymal Transition (EMT) phenomenon of NSCLC cells. Moreover, we demonstrated that knockdown of lncRNA GHET1 suppresses LATS1/YAP pathway signaling pathway by downregulating YAP1 expression in NSCLC cells. CONCLUSIONS GHET1 predicted a poor outcome and acted as a tumor-promoting gene in NSCLC. Thus, inhibition of GHET1 may be a potential target of NSCLC treatment.
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Hantute-Ghesquier A, Haustrate A, Prevarskaya N, Lehen'kyi V. TRPM Family Channels in Cancer. Pharmaceuticals (Basel) 2018; 11:ph11020058. [PMID: 29875336 PMCID: PMC6027338 DOI: 10.3390/ph11020058] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/28/2018] [Accepted: 06/01/2018] [Indexed: 12/11/2022] Open
Abstract
Members of the TRPM ("Melastatin") family fall into the subclass of the TRP channels having varying permeability to Ca2+ and Mg2+, with three members of the TRPM family being chanzymes, which contain C-terminal enzyme domains. The role of different TRPM members has been shown in various cancers such as prostate cancer for mostly TRPM8 and TRPM2, breast cancer for mostly TRPM2 and TRPM7, and pancreatic cancer for TRPM2/7/8 channels. The role of TRPM5 channels has been shown in lung cancer, TRPM1 in melanoma, and TRPM4 channel in prostate cancer as well. Thus, the TRPM family of channels may represent an appealing target for the anticancer therapy.
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Affiliation(s)
- Aline Hantute-Ghesquier
- Laboratory of Cell Physiology, INSERM U1003, Laboratory of Excellence Ion Channels Science and Therapeutics, Department of Biology, Faculty of Science and Technologies, University of Lille, 59650 Villeneuve d'Ascq, France.
| | - Aurélien Haustrate
- Laboratory of Cell Physiology, INSERM U1003, Laboratory of Excellence Ion Channels Science and Therapeutics, Department of Biology, Faculty of Science and Technologies, University of Lille, 59650 Villeneuve d'Ascq, France.
- FONDATION ARC, 9 rue Guy Môquet 94830 Villejuif, France.
| | - Natalia Prevarskaya
- Laboratory of Cell Physiology, INSERM U1003, Laboratory of Excellence Ion Channels Science and Therapeutics, Department of Biology, Faculty of Science and Technologies, University of Lille, 59650 Villeneuve d'Ascq, France.
| | - V'yacheslav Lehen'kyi
- Laboratory of Cell Physiology, INSERM U1003, Laboratory of Excellence Ion Channels Science and Therapeutics, Department of Biology, Faculty of Science and Technologies, University of Lille, 59650 Villeneuve d'Ascq, France.
- FONDATION ARC, 9 rue Guy Môquet 94830 Villejuif, France.
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Lin R, Wang Y, Chen Q, Liu Z, Xiao S, Wang B, Shi B. TRPM2 promotes the proliferation and invasion of pancreatic ductal adenocarcinoma. Mol Med Rep 2018; 17:7537-7544. [PMID: 29620272 PMCID: PMC5983953 DOI: 10.3892/mmr.2018.8816] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 01/29/2018] [Indexed: 01/05/2023] Open
Abstract
The aim of the present study was to investigate transient receptor potential cation channel subfamily M member 2 (TRPM2), a promising therapeutic target and biomarker for pancreatic ductal adenocarcinoma (PDAC) prognosis, in addition to determining its effects regarding tumor progression and invasion. PDAC is a fatal disease with a poor prognosis, and its associated pathogenic molecular mechanisms remain to be determined. In the present study, combined analysis using genomic and transcriptomic data from two PDAC studies was performed to discover a survival‑associated biomarker of PDAC. Survival analysis for genes mutated in ≥10 patients was performed using a Kaplan‑Meier curve and tested for significance using a log‑rank test. Furthermore, gene‑expression correlation analysis was performed to determine the genes with the strongest correlations to TRPM2. In addition, a Cell Counting Kit‑8 assay, a scratch wound‑healing assay and a Transwell assay were performed in the present study to investigate the proliferative, invasive and metastatic ability of PANC‑1 cells in TRPM2‑overexpressing and downregulated groups. The mutated TRPM2 gene had a strong negative correlation with patient survival probability compared with the normal control group (P=1.06x10‑4). Expression of TRPM2 was strongly correlated with expression of probable phospholipid‑transporting ATPase IM, γ‑parvin, tudor domain containing 9, Toll‑like receptor 7 and Scm‑like with four MBT domains protein 2 according to the criterion of a correlation coefficient >0.5. Furthermore, the results of the present study demonstrated that the TRPM2 overexpression in a PDAC cell line (PANC‑1) promoted cell proliferation, invasion and metastatic ability. TRPM2 represents a potential therapeutic target and prognostic marker for patients with PDAC. TRPM2 regulates cell proliferation, invasion and migration; however, the underlying mechanism requires further investigation in future studies.
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Affiliation(s)
- Rui Lin
- Department of General Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, P.R. China
| | - Yufeng Wang
- Department of General Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, P.R. China
| | - Quanning Chen
- Department of General Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, P.R. China
| | - Zhongyan Liu
- Department of General Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, P.R. China
| | - Shuai Xiao
- Department of General Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, P.R. China
| | - Bingyi Wang
- Department of General Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, P.R. China
| | - Baomin Shi
- Department of General Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, P.R. China
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Long non-coding RNA TRPM2-AS as a potential biomarker for hepatocellular carcinoma. Ir J Med Sci 2017; 187:621-628. [PMID: 29081064 DOI: 10.1007/s11845-017-1692-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 10/03/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND There is increasing evidence that long non-coding RNAs are involved in hepatocellular carcinoma (HCC) tumorigenesis. The expression level of TRPM2-AS in HCC and its clinical association remain poorly defined. METHOD qRT-PCR was performed to detect the expression of TRPM2-AS in 108 HCC patients. The correlations between TRPM2-AS expression and clinicopathological factors and prognosis were evaluated. The inference of TRPM2-AS to the proliferation and apoptosis of HCC cells was detected. AIMS The aim of our study was to explore the expression of TRPM2-AS in hepatocellular carcinoma (HCC) and the relation with prognosis and clinical features. RESULTS The expression of TRPM2-AS was higher in most HCC tissues and was significantly correlated with tumor size, AJCC stage, tumor differentiation, and the prognosis of HCC patients. Interfering TRPM2-AS expression using siRNA significantly inhibited cell proliferation and promoted cell apoptosis in two HCC cell lines. CONCLUSION Long non-coding RNA TRPM2-AS is upregulated in HCC and represents a new biomarker for HCC and the inhibition of TRPM2-AS promotes apoptosis in HCC cells in vitro.
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Ye JR, Liu L, Zheng F. Long Noncoding RNA Bladder Cancer Associated Transcript 1 Promotes the Proliferation, Migration, and Invasion of Nonsmall Cell Lung Cancer Through Sponging miR-144. DNA Cell Biol 2017; 36:845-852. [PMID: 28885863 DOI: 10.1089/dna.2017.3854] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Ji-Ru Ye
- Department of Respiratory Medicine, The Third Affiliated Hospital of Soochow University, The First People's Hospital of Changzhou, Changzhou, China
| | - Liang Liu
- Department of Thoracic Surgery, The TCM Hospital of Changzhou Affiliated to Nanjing University of TCM, Changzhou, China
| | - Feng Zheng
- Department of Critical Care Medicine, The Third Affiliated Hospital of Soochow University, The First People's Hospital of Changzhou, Changzhou, China
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Zhou Y, Lu Y, Li R, Yan N, Li X, Dai T. Prognostic role of long non-coding RNA TUG1 expression in various cancers: a meta-analysis. Oncotarget 2017; 8:100499-100507. [PMID: 29245996 PMCID: PMC5725038 DOI: 10.18632/oncotarget.20037] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 07/26/2017] [Indexed: 12/11/2022] Open
Abstract
Several studies were conducted to explore the prognostic role of long non-coding RNA taurine upregulated gene 1 (lncRNA TUG1) expression in various cancers, with contradictory. This study aims to summarize the prognostic role of lncRNA TUG1 expression in various cancers. Embase, PubMed and Cochrane Library were completely retrieved. The cohort studies focusing on the prognostic role of lncRNA TUG1 expression in various cancers were eligible. The endpoints were overall survival (OS) and clinicopathological parameters. 9 studies involving a total of 1,078 patients were identified. The results showed that high lncRNA TUG1 expression was obviously associated with worse OS when compared to the low lncRNA TUG1 expression (HR = 1.37, 95% CI = 1.07–1.76, P = 0.01; I2 = 85%). However, No distinct relationship was observed between the lncRNA TUG1 expression and age (OR = 0.99, 95% CI = 0.76–1.28, P = 0.92; I2 = 4%), gender (OR = 0.92, 95% CI = 0.70–1.22, P = 0.57; I2 = 0%), diameter (OR = 0.83, 95% CI = 0.34–2.01, P = 0.67; I2 = 85%), smoking (OR = 1.09, 95% CI = 0.37–3.21, P = 0.87; I2 = 73%), TNM stage (OR = 0.60, 95% CI = 0.25–1.43, P = 0.25; I2 = 86%) and lymph node metastasis (OR = 1.07, 95% CI = 0.47–2.45, P = 0.87; I2 = 86%). In conclusion, it was revealed that high lncRNA TUG1 expression is an unfavorable predictor of OS in patients with cancers, and lncRNA TUG1 expression is a promising prognostic biomarker for various cancers.
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Affiliation(s)
- Yongping Zhou
- Department of Hepatobiliary, Wuxi Second Hospital, Nanjing Medical University, Wuxi, China
| | - Yuxuan Lu
- School of Medicine, Tongji University, Shanghai, China
| | - Runmin Li
- School of Medicine, Tongji University, Shanghai, China
| | - Nana Yan
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, China
| | - Xiding Li
- Department of General Surgery, Wuxi Second Hospital, Nanjing Medical University, Wuxi, China
| | - Tu Dai
- Department of Hepatobiliary, Wuxi Second Hospital, Nanjing Medical University, Wuxi, China
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