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Zhou C, Yang Y, Shen L, Wang L, Zhang J, Wu X. Association of telomerase reverse transcriptase gene rs10069690 variant with cancer risk: an updated meta-analysis. BMC Cancer 2024; 24:1059. [PMID: 39192222 PMCID: PMC11350973 DOI: 10.1186/s12885-024-12833-2] [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: 06/18/2024] [Accepted: 08/20/2024] [Indexed: 08/29/2024] Open
Abstract
OBJECTIVE Existing evidence suggests telomerase activation is a crucial step in tumorigenesis. The telomerase reverse transcriptase (TERT), encoded by the human TERT gene, is critical for telomerase expression. The TERT rs10069690 (C > T) variant was identified to be associated with the risk of cancer, however, there have been inconsistent results. Therefore, we performed a comprehensive meta-analysis aiming to clarify the association between this variant and cancer susceptibility. METHODS We conducted literature search in PubMed, EMbase, MEDLINE and Cochrane Library up to April 30, 2024. Overall, there are 55 studies involving 334,196 patients with cancer and 741,187 controls included in the present study. All statistical analyses were performed by STATA software (version 11.0). RESULTS The pooled results showed a significant association between rs10069690 and an increased risk of cancer under allele model (OR = 1.10, 95% CI: 1.07-1.13, P < 0.001), especially in European and Asian populations. When stratified by cancer types, this variant was associated with elevated risk of breast cancer (OR = 1.11, 95% CI: 1.07-1.15, P < 0.001), ovarian cancer (OR = 1.14, 95% CI: 1.10-1.19, P < 0.001), lung cancer (OR = 1.20, 95% CI: 1.07-1.35, P = 0.003), thyroid cancer (OR = 1.23, 95% CI: 1.15-1.32, P < 0.001), gastric cancer (OR = 1.31, 95% CI: 1.19-1.45, P < 0.001), and renal cell carcinoma (OR = 1.29, 95% CI: 1.07-1.55, P = 0.007), while decreased risk was found for hepatocellular carcinoma, prostate cancer and pancreatic cancer. Our results also indicated that this variant was significantly associated with solid cancer (OR = 1.11, 95% CI: 1.07-1.14, P < 0.001), but not with hematological tumor. CONCLUSION This systematic meta-analysis demonstrated that the TERT rs10069690 variant was a risk factor for cancer. However, the effects of this variant may vary in different types of cancer and differ across ethnic populations.
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Affiliation(s)
- Chao Zhou
- Department of Thoracic Surgery, Shanghai Chest Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Yunke Yang
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Lu Shen
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Lu Wang
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Juan Zhang
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Xi Wu
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, 200030, China.
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farrukh S, Baig S, Hussain R, Imad R, kulsoom O, Yousaf Rana M. Identification of polymorphic alleles in TERC and TERT gene reprogramming the telomeres of newborn and legacy with parental health. Saudi J Biol Sci 2024; 31:103897. [PMID: 38192544 PMCID: PMC10772381 DOI: 10.1016/j.sjbs.2023.103897] [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: 07/27/2023] [Revised: 12/02/2023] [Accepted: 12/08/2023] [Indexed: 01/10/2024] Open
Abstract
Telomere and telomerase genes (TERC and TERT) highlighted many novel genetic polymorphisms related to common diseases. This study explored the polymorphic alleles of TERC and TERT gene in parents-newborn (triad) and its association with telomere length (TL) and parental diseases (mother: Gestational Diabetes Mellitus (GDM), Preeclampsia, fathers: Diabetes, Hypertension). In this cross-sectional study, the blood samples (n = 612) were collected from parents-newborn triad (204 each) for TL (T/S ratio) quantification by using qPCR, and gene (TERC and TERT) polymorphism was detected by Sanger sequencing. The correlation analysis was used to find an association between paternal TL (T/S ratio) and newborn TL. The multivariate linear regression was applied to determine the effect of parents genes and diseases on newborn TL. A positive association (r = 0.42,0.39) (p < 0.0001) among parents and newborn TL was observed. In the diseased group, both TERC (rs10936599) and TERT (rs2736100) genes had a high frequency of allele C in newborns (OR = 0.94, P = 0.90, OR = 4.24, P = 0.012). However, among parents, TERT gene [Mother CC (B = 0.575; P = 0.196), Father CC (B = -0.739; P = 0.071)] was found significant contributing factor for Newborn TL. Diseased parents with T/T and A/C genotypes had longer newborn TL (2.82 ± 2.43, p < 0.022; 1.80 ± 1.20, p < 0.00) than the C/C genotype. Therefore, the study, confirmed that major allele C of TERC and TERT genes is associated with smaller TL in diseased parents-newborns of the targeted population.
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Affiliation(s)
- Sadia farrukh
- Department of Biochemistry, Ziauddin University, Karachi, Pakistan
- Department of Community Health Sciences, The Agha Khan University, Karachi, Pakistan
| | - Saeeda Baig
- Department of Biochemistry, Ziauddin University, Karachi, Pakistan
| | - Rubina Hussain
- Department Gynecology and obstetrician, Ziauddin university and hospitals, Karachi, Pakistan
| | - Rehan Imad
- Department of Molecular medicine, Ziauddin University Karachi, Pakistan
| | - Ome kulsoom
- Department Gynecology and obstetrician, Ziauddin hospital, Karachi, Pakistan
| | - Mehreen Yousaf Rana
- Department Gynecology and obstetrician, Ziauddin hospital, Karachi, Pakistan
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Mou SI, Sultana T, Chatterjee D, Faruk MO, Hosen MI. Comprehensive characterization of coding and non-coding single nucleotide polymorphisms of the Myoneurin (MYNN) gene using molecular dynamics simulation and docking approaches. PLoS One 2024; 19:e0296361. [PMID: 38165846 PMCID: PMC10760682 DOI: 10.1371/journal.pone.0296361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 12/11/2023] [Indexed: 01/04/2024] Open
Abstract
Genome-wide association studies (GWAS) identified a coding single nucleotide polymorphism, MYNN rs10936599, at chromosome 3q. MYNN gene encodes myoneurin protein, which has been associated with several cancer pathogenesis and disease development processes. However, there needed to be a more detailed characterization of this polymorphism's (and other coding and non-coding polymorphisms) structural, functional, and molecular impact. The current study addressed this gap and analyzed different properties of rs10936599 and non-coding SNPs of MYNN via a thorough computational method. The variant, rs10936599, was predicted functionally deleterious by nine functionality prediction approaches, like SIFT, PolyPhen-2, and REVEL, etc. Following that, structural modifications were estimated through the HOPE server and Mutation3D. Moreover, the mutation was found in a conserved and active residue, according to ConSurf and CPORT. Further, the secondary structures were predicted, followed by tertiary structures, and there was a significant deviation between the native and variant models. Similarly, molecular simulation also showed considerable differences in the dynamic pattern of the wildtype and mutant structures. Molecular docking revealed that the variant binds with better docking scores with ligand NOTCH2. In addition to that, non-coding SNPs located at the MYNN locus were retrieved from the ENSEMBL database. These were found to disrupt the transcription factor binding regulatory regions; nonetheless, only two affect miRNA target sites. Again, eight non-coding variants were detected in the testes with normalized expression, whereas HaploReg v4.1 unveiled annotations for non-coding variants. In summary, in silico comprehensive characterization of coding and non-coding single nucleotide polymorphisms of MYNN gene will assist researchers to work on MYNN gene and establish their association with certain types of cancers.
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Affiliation(s)
- Sadia Islam Mou
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, Bangladesh
| | - Tamanna Sultana
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, Bangladesh
| | - Dipankor Chatterjee
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, Bangladesh
| | - Md. Omar Faruk
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, Bangladesh
| | - Md. Ismail Hosen
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, Bangladesh
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Farrukh S, Baig S. Parental telomeres implications on immune senescence of newborns. AMERICAN JOURNAL OF CLINICAL AND EXPERIMENTAL IMMUNOLOGY 2023; 12:81-86. [PMID: 38022874 PMCID: PMC10658162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 09/25/2023] [Indexed: 12/01/2023]
Abstract
Telomere, the biological chronometer, and its effect on the immune system considerably varies among individuals. During pregnancy, multiple risk factors affect telomere reprogramming during fetal life which can lead to health disparities in newborns. These changes may cause a long-term impact on the telomere genetics of the newborn and become a reason for lifelong health implications and immune senescence. Therefore, telomere shortening in parents due to genetic variation may act as a hallmark of immune senescence and aging in their newborns.
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Affiliation(s)
- Sadia Farrukh
- Department of Biochemistry, Ziauddin University Karachi, Pakistan
| | - Saeeda Baig
- Department of Biochemistry, Ziauddin University Karachi, Pakistan
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Shi Q, Zhang XX, Shi XQ, Chen Y, Sun C. Identification of rs2736099 as a novel cis-regulatory variation for TERT and implications for tumorigenesis and cell proliferation. J Cancer Res Clin Oncol 2022:10.1007/s00432-022-04372-9. [PMID: 36131156 DOI: 10.1007/s00432-022-04372-9] [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: 09/02/2022] [Accepted: 09/19/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE Lung cancer is a malignant tumor with obvious genetic predisposition. Association studies have proposed that rs2853677, a SNP localizing at intron region of TERT (telomerase reverse transcriptase), is significantly associated with TERT expression, telomere length and eventually lung cancer risk. However, functional genomics work indicates that rs2853677 is not with the ability to alter gene expression. All these facts make us hypothesize that some other genetic variation(s) are in linkage disequilibrium (LD) with rs2853677 and influence TERT expression. METHODS LD pattern in rs2853677 nearby region was analyzed based on 1000 genomes data for three representative populations in the world and functional genomics research was performed for this locus. RESULTS Only one SNP, rs2736099, is in strong LD with rs2853677 in East Asian. Dual-luciferase reporter assay verifies that rs2736099 can regulate gene expression and should be the causal SNP for this disease. Through chromosome conformation capture assay, it is disclosed that the enhancer surrounding rs2736099 can interact with TERT promoter. Through chromatin immunoprecipitation, the transcription factor SP1 (Sp1 transcription factor) is recognized for the chromatin segment spanning rs2736099. CONCLUSIONS Our results provide the missing piece between genetic variation at this locus and lung cancer risk, which is also applied to tumorigenesis in other tissues and cell proliferation.
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Affiliation(s)
- Qiang Shi
- College of Life Sciences, Shaanxi Normal University, Xi'an, 710119, Shaanxi, People's Republic of China.
| | - Xin-Xin Zhang
- College of Life Sciences, Shaanxi Normal University, Xi'an, 710119, Shaanxi, People's Republic of China
| | - Xiao-Qian Shi
- College of Life Sciences, Shaanxi Normal University, Xi'an, 710119, Shaanxi, People's Republic of China
| | - Ying Chen
- College of Life Sciences, Shaanxi Normal University, Xi'an, 710119, Shaanxi, People's Republic of China
| | - Chang Sun
- College of Life Sciences, Shaanxi Normal University, Xi'an, 710119, Shaanxi, People's Republic of China.
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Liu C, He Y. [Research Progress in the Pathogenesis of Idiopathic Pulmonary Fibrosis with Lung Cancer]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2021; 23:695-700. [PMID: 32838491 PMCID: PMC7467990 DOI: 10.3779/j.issn.1009-3419.2020.102.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
特发性肺纤维化(idiopathic pulmonary fibrosis, IPF)是一种原因不明,以弥漫性肺泡炎和肺泡结构紊乱最终导致肺间质纤维化为特征的疾病。针对IPF尚无有效的治疗手段,主要以延缓疾病进展、改善患者生活质量为主。而目前IPF合并肺癌(IPF with lung cancer, IPF-LC)的发病率越来越高,致使患者死亡率明显增加、生活质量显著下降。IPF-LC多见于男性、高龄和吸烟者,是一种临床表现缺乏特异性、无明确治疗方案、中位生存期短、预后较差的致死性疾病。目前IPF-LC发病机制及治疗方案尚不明确。本文就目前IPF-LC的危险因素、发病机制、临床特征和治疗的相关研究进展作简要综述。
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Affiliation(s)
- Chunhui Liu
- The First Affiliated Hospital of Xinjiang Medical University, Urumuqi 830000, China
| | - Yuanbing He
- The First Affiliated Hospital of Xinjiang Medical University, Urumuqi 830000, China
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El Menshawy N, El-Ashwah S, Ebrahim MA, Mortada MI, Ramez A, Attia DM. TERT Genotype Polymorphism: A Glance of Change Egyptian MDS Outcomes. Asian Pac J Cancer Prev 2021; 22:1547-1555. [PMID: 34048184 PMCID: PMC8408390 DOI: 10.31557/apjcp.2021.22.5.1547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Indexed: 12/02/2022] Open
Abstract
Background: Myelodysplastic Syndromes (MDS)are clonal hematologic disorders characterized by genetic instability and ineffective hematopoiesis associated with telomere dysfunction. We aimed at investigating the association between the rs2242652 single nucleotide variant of the TERT gene and susceptibility for MDS, as well as its prognostic impact and relation to disease phenotype. Methods: Genotyping analysis was carried on 100 MDS patients recruited at Mansoura Oncology center, in addition to 100 healthy subjects for detection of rs2242652 variant of TERT gene on chromosome 5 by real time PCR following the protocol of Custom TaqMan® SNP Genotyping. Results: The rs2242652 TERT genetic polymorphism was associated with an increased risk of MDS (odds ratios 2.6 for genotype GA, 6.4 for genotype AA). The majority of AA homozygous mutant variant were associated pancytopenia (88%), poor risk cytogenetics (92%) and High/very high IPSS-R score (88%). At the end of follow-up (median 30 months), 14% of the cases transformed to secondary AML. The rate of leukemic transformation was significantly associated with the mutant AA genotype (93% of transformed cases, 52% of AA genotype cases; P< 0.0001). Survival outcome was inferior in AA mutant genotype (median 14 months, 95% CI: 12-16 months) to the GA genotype (median 30 months, 95% CI: 26-33 months) and those of the GG genotype (median not reached), P<0.001. Conclusion: Our study shows an intriguing and previously unrecognized association between rs2242652 TERT mutation and MDS risk. The presence of rs2242652 mutation defines a subgroup of patients with aggressive disease phenotype and dismal outcome. Further research is recommended to elucidate underlying pathologic mechanisms and to define an efficient therapeutic target.
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Affiliation(s)
- Nadia El Menshawy
- Department of Clinical Pathology, Hematology Unit, Faculty of Medicine, Mansoura University, Egypt
| | - Shaimaa El-Ashwah
- Clinical Hematology Unit, Department of Internal Medicine, Faculty of Medicine, Mansoura University, Egypt
| | - Mohamed A Ebrahim
- Medical Oncology Unit, Department of Internal Medicine, Faculty of Medicine, Mansoura University, Egypt
| | - Metwally Ibrahem Mortada
- Department of Clinical Pathology, Hematology Unit, Faculty of Medicine, Mansoura University, Egypt
| | - Ahmed Ramez
- Medical Oncology Unit, Department of Internal Medicine, Faculty of Medicine, Mansoura University, Egypt
| | - Doaa M Attia
- Department of Clinical Pathology, Hematology Unit, Faculty of Medicine, Mansoura University, Egypt
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Polat F, Diler SB, Bingöl G. Association of MYNN, TERT and TERC Gene Polymorphisms with Prostate Cancer in Turkish Population. CYTOL GENET+ 2021. [DOI: 10.3103/s0095452720060080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Gala K, Khattar E. Long non-coding RNAs at work on telomeres: Functions and implications in cancer therapy. Cancer Lett 2021; 502:120-132. [PMID: 33450357 DOI: 10.1016/j.canlet.2020.12.036] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 12/13/2020] [Accepted: 12/29/2020] [Indexed: 12/27/2022]
Abstract
Long non-coding RNAs (lncRNAs) are known to regulate various biological processes including cancer. Cancer cells possess limitless replicative potential which is attained by telomere length maintenance while normal somatic cells have a limited lifespan because their telomeres shorten with every cell division ultimately triggering replicative senescence. Two lncRNAs have been observed to play a key role in telomere length maintenance. First is the lncRNA TERC (telomerase RNA component) which functions as a template for telomeric DNA synthesis in association with telomerase reverse transcriptase (TERT) which serves as the catalytic component. Together they constitute the telomerase complex which functions as a reverse transcriptase to elongate telomeres. Second lncRNA that helps in regulating telomere length is the telomeric repeat-containing RNA (TERRA) which is transcribed from the subtelomeric region and extends to the telomeric region. TERC and TERRA exhibit important functions in cancer with implications in precision oncology. In this review, we discuss various aspects of these important lncRNAs in humans and their role in cancer along with recent advancements in their anticancer therapeutic application.
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Affiliation(s)
- Kavita Gala
- Sunandan Divatia School of Science, SVKM's NMIMS (Deemed to be) University, Mumbai, 400056, Maharashtra, India
| | - Ekta Khattar
- Sunandan Divatia School of Science, SVKM's NMIMS (Deemed to be) University, Mumbai, 400056, Maharashtra, India.
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He G, Song T, Zhang Y, Chen X, Xiong W, Chen H, Sun C, Zhao C, Chen Y, Wu H. TERT rs10069690 polymorphism and cancers risk: A meta-analysis. Mol Genet Genomic Med 2019; 7:e00903. [PMID: 31454181 PMCID: PMC6785442 DOI: 10.1002/mgg3.903] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 06/21/2019] [Accepted: 07/17/2019] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Studies have identified that the telomerase reverse transcriptase (TERT) gene polymorphism rs10069690 (C>T) is associated with cancer risk, but the results remain inconclusive. METHODS To provide a more precise estimation of the relationship, we performed a meta-analysis of 45 published studies including 329,035 cases and 730,940 controls. We conducted a search in PubMed, Google Scholar and Web of Science to select studies on the association between rs10069690 and cancer risk. Stratification by ethnicity, cancer type, cancers' classification, source of control, sample size, and genotype method was used to explore the source of heterogeneity. The pooled odds ratios (ORs) and corresponding 95% confidence intervals (CIs) were evaluated using random effects models. Sensitivity, publication bias, false-positive report probability (FPRP) and statistical power were also assessed. RESULTS The result demonstrated that rs10069690 was significantly associated with an increased risk of cancer overall (OR = 1.09, 95% CI: 1.06-1.12, p < .001) under the allele model. Stratification analysis revealed an increased cancer risk in subgroups of breast cancer, ovarian cancer, lung cancer, thyroid cancer, and renal cell carcinoma (RCC). However, a significantly decreased association was observed in pancreatic cancer in the European population (OR = 0.93,95% CI: 0.87-0.99, p = .031). In the subgroup analysis based on cancer type, no significant association was found in prostate cancer, leukemia, colorectal cancer and glioma. CONCLUSIONS This meta-analysis suggested that the TERT rs10069690 polymorphism may be a risk factor for cancer, especially breast cancer, ovarian cancer, lung cancer, thyroid cancer, and RCC. Further functional studies are warranted to reveal the role of the polymorphism in carcinogenesis.
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Affiliation(s)
- Guisheng He
- Department of Surgical OncologySecond Affiliated Hospital of Hainan Medical CollegeHaikouHainan ProvinceChina
| | - Tao Song
- Department of Surgical OncologySecond Affiliated Hospital of Hainan Medical CollegeHaikouHainan ProvinceChina
| | - Yazhen Zhang
- Department of Surgical OncologySecond Affiliated Hospital of Hainan Medical CollegeHaikouHainan ProvinceChina
| | - Xiuxiu Chen
- Department of Surgical OncologySecond Affiliated Hospital of Hainan Medical CollegeHaikouHainan ProvinceChina
| | - Wei Xiong
- Department of Surgical OncologySecond Affiliated Hospital of Hainan Medical CollegeHaikouHainan ProvinceChina
| | - Huamin Chen
- Department of Surgical OncologySecond Affiliated Hospital of Hainan Medical CollegeHaikouHainan ProvinceChina
| | - Chuanwei Sun
- Department of Surgical OncologySecond Affiliated Hospital of Hainan Medical CollegeHaikouHainan ProvinceChina
| | - Chaoyang Zhao
- Department of Surgical OncologySecond Affiliated Hospital of Hainan Medical CollegeHaikouHainan ProvinceChina
| | - Yunjing Chen
- Department of Surgical OncologySecond Affiliated Hospital of Hainan Medical CollegeHaikouHainan ProvinceChina
| | - Huangfu Wu
- Department of Surgical OncologySecond Affiliated Hospital of Hainan Medical CollegeHaikouHainan ProvinceChina
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Bhat GR, Bhat A, Verma S, Sethi I, Shah R, Sharma V, Dar KA, Abrol D, Kaneez S, Kaul S, Ganju R, Kumar R. Association of newly identified genetic variant rs2853677 of TERT with non-small cell lung cancer and leukemia in population of Jammu and Kashmir, India. BMC Cancer 2019; 19:493. [PMID: 31126249 PMCID: PMC6533689 DOI: 10.1186/s12885-019-5685-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 05/08/2019] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Telomere genetics has recently been emerged as an important field in molecular oncology. Various genome-wide association studies in different population groups have revealed that polymorphisms in Telomere maintenance gene (TERT) gene located on 5p15.33 is associated with susceptibility to leukemia and lung cancer risk. However, association of TERT with leukemia and lung cancer risk in north Indian population groups is still unknown. This study observed the association between genetic variant rs2853677 of TERT and leukemia and lung cancer in the state of Jammu and Kashmir, India. METHODS A total of 781 subjects, out of which 381 cases (203 leukemic patients and 178 non-small cell lung cancer patients NSCLC) and 400 healthy controls were recruited for the study. Genetic variant rs2853677of TERT was detected using the real-time and Taqman Chemistry. Hardy-Weinberg Equilibrium was assessed using the chi square test. The allele and genotype- specific risks were estimated as odds ratio with 95% confidence interval. RESULTS We observed that variant rs2853677 was strongly associated with lung cancer and leukemia risk with an odds ratio (OR) =1.8 (1.03-3.2 at 95% CI); p value (adjusted) = 0.03; odds ratio (OR) =2.9 (1.4-5.5.at 95% CI); p value (adjusted) = 0.002, respectively. CONCLUSION The results of this study suggested that rs2853677 of TERT signifies association in multiple cancers and suggests that it can become potential marker for diagnosis of non-small cell lung cancer and leukemia. The study will provide an insight in understanding the genetic etiology and highlights the role of telomere-associated pathways in non-small cell lung cancer and leukemia. However, it would be quite interesting to explore the contribution of this variant in other cancers as well.
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Affiliation(s)
- Gh Rasool Bhat
- Cancer Genetics Research Group, School of Biotechnology, Shri Mata Vaishno Devi University, Katra, India
| | - Amrita Bhat
- Cancer Genetics Research Group, School of Biotechnology, Shri Mata Vaishno Devi University, Katra, India
| | - Sonali Verma
- Cancer Genetics Research Group, School of Biotechnology, Shri Mata Vaishno Devi University, Katra, India
| | - Itty Sethi
- Human Genetics Research Group, School of Biotechnology, Shri Mata Vaishno Devi University, Katra, India
| | - Ruchi Shah
- Human Genetics Research Group, School of Biotechnology, Shri Mata Vaishno Devi University, Katra, India
| | - Varun Sharma
- Human Genetics Research Group, School of Biotechnology, Shri Mata Vaishno Devi University, Katra, India
| | - Khursheed A Dar
- Chest Disease Hospital, Government Medical College, Srinagar, India
| | - Deepak Abrol
- Department of Radiotherapy, Government Medical College, Jammu, India
| | - Subiya Kaneez
- Department of Radiotherapy, Government Medical College, Srinagar, India
| | - Sandeep Kaul
- Department of surgical Oncology, Shri Mata Vaishno Devi Narayana Super speciality hospital, kata, India
| | - Ramesh Ganju
- Department of Pathology, College of Medicine, The OHIO State University, Columbus, USA
| | - Rakesh Kumar
- Cancer Genetics Research Group, School of Biotechnology, Shri Mata Vaishno Devi University, Katra, India.
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The Function of Non-Coding RNAs in Lung Cancer Tumorigenesis. Cancers (Basel) 2019; 11:cancers11050605. [PMID: 31052265 PMCID: PMC6563001 DOI: 10.3390/cancers11050605] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 04/18/2019] [Accepted: 04/25/2019] [Indexed: 01/08/2023] Open
Abstract
Lung cancer is the most prevalent and deadliest cancer worldwide. A significant part of lung cancer studies is dedicated to the expression alterations of non-coding RNAs. The non-coding RNAs are transcripts that cannot be translated into proteins. While the study of microRNAs and siRNAs in lung cancer received a lot of attention over the last decade, highly efficient therapeutic option or the diagnostic methods based on non-coding RNAs are still lacking. Because of this, it is of utmost importance to direct future research on lung cancer towards analyzing other RNA types for which the currently available data indicates that are essential at modulating lung tumorigenesis. Through our review of studies on this subject, we identify the following non-coding RNAs as tumor suppressors: ts-46, ts-47, ts-101, ts-53, ts-3676, ts-4521 (tRNA fragments), SNORD116-26, HBII-420, SNORD15A, SNORA42 (snoRNAs), piRNA-like-163, piR-35127, the piR-46545 (piRNAs), CHIAP2, LOC100420907, RPL13AP17 (pseudogenes), and uc.454 (T-UCR). We also found non-coding RNAs with tumor-promoting function: tRF-Leu-CAG, tRNA-Leu, tRNA-Val (tRNA fragments), circ-RAD23B, circRNA 100146, circPVT1, circFGFR3, circ_0004015, circPUM1, circFLI1, circABCB10, circHIPK3 (circRNAs), SNORA42, SNORA3, SNORD46, SNORA21, SNORD28, SNORA47, SNORD66, SNORA68, SNORA78 (snoRNAs), piR-65, piR-34871, piR-52200, piR651 (piRNAs), hY4 5’ fragments (YRNAs), FAM83A-AS1, WRAP53, NKX2-1-AS1 (NATs), DUXAP8, SFTA1P (pseudogene transcripts), uc.338, uc.339 (T-UCRs), and hTERC.
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Ballester B, Milara J, Cortijo J. Idiopathic Pulmonary Fibrosis and Lung Cancer: Mechanisms and Molecular Targets. Int J Mol Sci 2019; 20:ijms20030593. [PMID: 30704051 PMCID: PMC6387034 DOI: 10.3390/ijms20030593] [Citation(s) in RCA: 176] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/18/2019] [Accepted: 01/28/2019] [Indexed: 12/18/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is the most common idiopathic interstitial pulmonary disease with a median survival of 2–4 years after diagnosis. A significant number of IPF patients have risk factors, such as a history of smoking or concomitant emphysema, both of which can predispose the patient to lung cancer (LC) (mostly non-small cell lung cancer (NSCLC)). In fact, IPF itself increases the risk of LC development by 7% to 20%. In this regard, there are multiple common genetic, molecular, and cellular processes that connect lung fibrosis with LC, such as myofibroblast/mesenchymal transition, myofibroblast activation and uncontrolled proliferation, endoplasmic reticulum stress, alterations of growth factors expression, oxidative stress, and large genetic and epigenetic variations that can predispose the patient to develop IPF and LC. The current approved IPF therapies, pirfenidone and nintedanib, are also active in LC. In fact, nintedanib is approved as a second line treatment in NSCLC, and pirfenidone has shown anti-neoplastic effects in preclinical studies. In this review, we focus on the current knowledge on the mechanisms implicated in the development of LC in patients with IPF as well as in current IPF and LC-IPF candidate therapies based on novel molecular advances.
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Affiliation(s)
- Beatriz Ballester
- Department of Pharmacology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain.
- CIBERES, Health Institute Carlos III, 28029 Valencia, Spain.
| | - Javier Milara
- CIBERES, Health Institute Carlos III, 28029 Valencia, Spain.
- Pharmacy Unit, University Clinic Hospital of Valencia, 46010 Valencia, Spain.
- Institute of Health Research-INCLIVA, 46010 Valencia, Spain.
| | - Julio Cortijo
- Department of Pharmacology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain.
- CIBERES, Health Institute Carlos III, 28029 Valencia, Spain.
- Research and teaching Unit, University General Hospital Consortium, 46014 Valencia, Spain.
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