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Gupta MK, Kushwah AS, Singh R, Srivastava K, Banerjee M. Genetic and epigenetic alterations in MGMT gene and correlation with concomitant chemoradiotherapy (CRT) in cervical cancer. J Cancer Res Clin Oncol 2023; 149:15159-15170. [PMID: 37634205 DOI: 10.1007/s00432-023-05305-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 08/16/2023] [Indexed: 08/29/2023]
Abstract
PURPOSE The MGMT (O6-methylguanine-DNA methyltransferase) gene plays a crucial role in repairing DNA damage caused by alkylating agents, including those used in chemotherapy. Genetic and epigenetic alterations can influence the regulation of MGMT gene, which in turn may impact the response to concomitant chemoradiotherapy (CRT) in cervical cancer. The present study was undertaken to evaluate the correlation of such variations in MGMT gene with the treatment outcome of concomitant chemoradiotherapy (CRT) in cervical cancer. METHODS A total of 460 study subjects (240 controls and 220 patients) were subjected to genotypic analysis of MGMT gene variants rs12917(T/C) and rs2308327(A/G) by Amplification Refractory Mutation System-Polymerase Chain Reaction (ARMS-PCR). Out of them, 48 each of controls and patients were analyzed for promoter methylation and expression by methylation-specific PCR and real-time PCR, respectively. Patients (n = 48) were followed up and evaluated for treatment (CRT) outcome. Statistical analyses were done using GraphPad (9.0) and SPSS version 18.0. RESULTS Individuals with GG genotype, G allele of rs2308327, and haplotype 'TA' of both variants showed a significant increase in the development of cervical cancer (P ≤ 0.05). In epigenetic regulation, there was a significant hypermethylation of MGMT gene and down-regulation of their expression in patients compared to control individuals. In treatment outcome of CRT, GG genotype of rs2308327(A/G) gene variant showed better response and GG + AG was significantly associated with vital status (alive). Unmethylated MGMT gene showed better median overall survival up to 25 months significant in comparison to methylated MGMT promoter. CONCLUSION Gene variant rs2308327(A/G) and promoter hypermethylation regulated MGMT gene can be a good prognostic for treatment response in cervical cancer patients.
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Affiliation(s)
- Maneesh Kumar Gupta
- Molecular and Human Genetics Laboratory, Department of Zoology, University of Lucknow, Lucknow, 226007, India
| | - Atar Singh Kushwah
- Molecular and Human Genetics Laboratory, Department of Zoology, University of Lucknow, Lucknow, 226007, India
- Icahn School of Medicine at Mount Sinai, New York, 10029, USA
| | - Renu Singh
- Department of Obstetrics and Gynecology, King George's Medical University, Lucknow, 226003, India
| | - Kirti Srivastava
- Department of Radiotherapy, King George's Medical University, Lucknow, 226003, India
| | - Monisha Banerjee
- Molecular and Human Genetics Laboratory, Department of Zoology, University of Lucknow, Lucknow, 226007, India.
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Vasistha A, Kothari R, Mishra A, De Andrés F, LLerena A, Nair S. Current Insights into Interethnic Variability in Testicular Cancers: Population Pharmacogenetics, Clinical Trials, Genetic Basis of Chemotherapy- Induced Toxicities and Molecular Signal Transduction. Curr Top Med Chem 2021; 20:1824-1838. [PMID: 32552648 DOI: 10.2174/1568026620666200618112205] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 04/08/2020] [Accepted: 05/07/2020] [Indexed: 12/15/2022]
Abstract
Testicular cancer is an aggressive malignancy with a rising incidence rate across the globe. Testicular germ cell tumors are the most commonly diagnosed cancers, and surgical removal of the testes is often a radical necessity along with chemotherapy and radiotherapy. While seminomas are receptive to radiotherapy as well as chemotherapy, non-seminomatous germ cell tumors respond to chemotherapy only. Due to the singular nature of testicular cancers with associated orchiectomy and mortality, it is important to study the molecular basis and genetic underpinnings of this group of cancers across male populations globally. In this review, we shed light on the population pharmacogenetics of testicular cancer, pediatric and adult tumors, current clinical trials, genetic determinants of chemotherapy-induced toxicity in testicular cancer, as well as the molecular signal transduction pathways operating in this malignancy. Taken together, our discussions will help in enhancing our understanding of genetic factors in testicular carcinogenesis and chemotherapy-induced toxicity, augment our knowledge of this aggressive cancer at the cellular and molecular level, as well as improve precision medicine approaches to combat this disease.
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Affiliation(s)
- Aman Vasistha
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM's NMIMS University, V. L. Mehta Road, Vile Parle (West), Mumbai - 400 056, India
| | - Rishi Kothari
- SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, V. L. Mehta Road, Vile Parle (West), Mumbai - 400 056, India
| | - Adarsh Mishra
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM's NMIMS University, V. L. Mehta Road, Vile Parle (West), Mumbai - 400 056, India
| | - Fernando De Andrés
- CICAB Clinical Research Centre at Extremadura University Hospital and Medical School, Universidad de Extremadura, Badajoz, Spain
| | - Adrián LLerena
- CICAB Clinical Research Centre at Extremadura University Hospital and Medical School, Universidad de Extremadura, Badajoz, Spain
| | - Sujit Nair
- SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, V. L. Mehta Road, Vile Parle (West), Mumbai - 400 056, India
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Howlader NR, Rahman MM, Hossain MA, Sultana R, Hossain SM, Mazid MA, Rahman MM. Genetic polymorphisms in DNA repair genes XRCC1 and 3 are associated with increased risk of breast cancer in Bangladeshi population. Breast Cancer Res Treat 2020; 182:739-750. [PMID: 32562117 DOI: 10.1007/s10549-020-05738-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 06/09/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Genetic polymorphisms in DNA repair genes, XRCC1 (Arg399Gln) and XRCC3 (Thr241Met), may affect their DNA repair capacity leading to individual variation in breast cancer susceptibility among Bangladeshi females. METHODS The case-control study comprised 121 breast cancer patients and 133 healthy controls. Genomic DNA isolated from peripheral blood was genotyped for target SNPs using PCR-RFLP method. RESULTS For XRCC1, heterozygous Arg/Gln and homozygous Gln/Gln genotypes showed 1.78-fold (95% CI 1.0084 to 3.1442, p = 0.0467) and 2.41-fold (95% CI 1.0354 to 5.5914, p = 0.0413) increased risk of breast cancer, respectively, when compared with Arg/Arg genotype. The presence of any XRCC1 Gln showed association with 1.93-fold increased risk. The variant Gln allele was associated with increased risk of breast cancer (95% CI 1.1885 to 2.6805, p = 0.0052). For XRCC3, Thr/Met heterozygous and combined Thr/Met + Met/Met genotypes were associated with 1.85-fold (95% CI 1.0815 to 3.1834, p = 0.0248) and 1.89-fold (95% CI 1.1199 to 3.1908, p = 0.0171) higher risk, respectively, compared to Thr/Thr genotypes. The variant Met allele showed significant association with increased breast cancer susceptibility. Among cases genotype frequencies were significantly different in patients with age 55 or above, and with menopause and diabetes. CONCLUSION XRCC1 (Arg399Gln) and XRCC3 (Thr241Met) polymorphisms may be associated with increased breast cancer risk in Bangladeshi females.
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Affiliation(s)
- Nupur Rani Howlader
- Pharmacy Discipline, Life Science School, Khulna University, Khulna, 9208, Bangladesh
| | - Md Mostafizur Rahman
- Pharmacy Discipline, Life Science School, Khulna University, Khulna, 9208, Bangladesh
| | - Md Amir Hossain
- Department of Pharmacy, ASA University Bangladesh, Dhaka, Bangladesh
| | | | | | - Md Abdul Mazid
- Department of Pharmaceutical Chemistry, University of Dhaka, Dhaka, Bangladesh
| | - Md Mustafizur Rahman
- Pharmacy Discipline, Life Science School, Khulna University, Khulna, 9208, Bangladesh.
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Ghanshela R, Banerjee BD, Siddarth M, Gupta S. DNA repair gene polymorphism (XPA and XPG) and risk of urinary bladder cancer in North-Indian population. Meta Gene 2020. [DOI: 10.1016/j.mgene.2020.100676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Kaur J, Sambyal V, Guleria K, Singh NR, Uppal MS, Manjari M, Sudan M. Association of XRCC1, XRCC2 and XRCC3 Gene Polymorphism with Esophageal Cancer Risk. Clin Exp Gastroenterol 2020; 13:73-86. [PMID: 32214837 PMCID: PMC7083648 DOI: 10.2147/ceg.s232961] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 02/04/2020] [Indexed: 12/30/2022] Open
Abstract
Aim The X-ray repair cross-complementing (XRCC) gene polymorphisms influence esophageal carcinogenesis by altering the DNA repair capacity. The present study was designed to screen five single nucleotide polymorphisms (SNPs) of XRCC genes for their susceptibility to esophageal cancer (EC) risk. There is no previous report on these polymorphisms for EC from India, where EC frequency is high. Methods The present study included 497 subjects (213 EC patients and 284 healthy controls). The polymorphisms were screened using the PCR-RFLP method and allele and genotype distribution were compared using chi-square test. Association analysis was done by haplotype analysis and linkage disequilibrium (LD) analysis. Gene–gene interactions were identified using multifactor dimensionality reduction (MDR). The risk was calculated using binary logistic regression. Results For XRCC1 p.Arg399Gln, a decreased risk for EC was associated with the AA genotype [OR (95% CI): 0.53 (0.3–0.95), p=0.03] even after adjusting for various covariates [OR (95% CI): 0.49 (0.26–0.9), p=0.024] and with the recessive model [OR (95% CI): 0.49 (0.27–0.8), p=0.016]. The GA genotype of p.Arg280His was associated with an increased risk for EC [OR (95% CI): 1.7 (1.0–2.82), p= 0.045] after adjustments. The two XRCC1 polymorphisms, p.Arg399Gln and p.Arg194Trp were in slight LD among EC patients (D̍́=0.845, r2=0.042). XRCC2 and XRCC3 polymorphisms were not associated with EC risk. Conclusion XRCC1 p.Arg399Gln plays a protective role in the development of the EC. The study is the first report from India, providing baseline data about genetic polymorphisms in DNA repair genes XRCC1, XRCC2 and XRCC3 modulating overall EC risk.
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Affiliation(s)
- Jagjeet Kaur
- Human Cytogenetics Laboratory, Department of Human Genetics, Guru Nanak Dev University, Amritsar, India
| | - Vasudha Sambyal
- Human Cytogenetics Laboratory, Department of Human Genetics, Guru Nanak Dev University, Amritsar, India
| | - Kamlesh Guleria
- Human Cytogenetics Laboratory, Department of Human Genetics, Guru Nanak Dev University, Amritsar, India
| | | | | | | | - Meena Sudan
- Department of Radiotherapy, Sri Guru Ram Das Institute of Medical Sciences and Research, Amritsar, Punjab, India
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Devi KR, Ahmed J, Narain K, Mukherjee K, Majumdar G, Chenkual S, Zonunmawia JC. DNA Repair Mechanism Gene, XRCC1A ( Arg194Trp) but not XRCC3 ( Thr241Met) Polymorphism Increased the Risk of Breast Cancer in Premenopausal Females: A Case-Control Study in Northeastern Region of India. Technol Cancer Res Treat 2017; 16:1150-1159. [PMID: 29332455 PMCID: PMC5762082 DOI: 10.1177/1533034617736162] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
X-ray repair cross complementary group gene is one of the most studied candidate gene involved in different types of cancers. Studies have shown that X-ray repair cross complementary genes are significantly associated with increased risk of breast cancer in females. Moreover, studies have revealed that X-ray repair cross complementary gene polymorphism significantly varies between and within different ethnic groups globally. The present case–control study was aimed to investigate the association of X-ray repair cross complementary 1A (Arg194Trp) and X-ray repair cross complementary 3 (Thr241Met) polymorphism with the risk of breast cancer in females from northeastern region of India. The present case–control study includes histopathologically confirmed and newly diagnosed 464 cases with breast cancer and 534 apparently healthy neighborhood community controls. Information on sociodemographic factors and putative risk factors were collected from each study participant by conducting face-to-face interviews. Genotyping of X-ray repair cross complementary 1A (Arg194Trp) and X-ray repair cross complementary 3 (Thr241Met) was carried out by polymerase chain reaction-restriction fragment length polymorphism. For statistical analysis, both univariate and multivariate logistic regression analyses were performed. We also performed stratified analysis to find out the association of X-ray repair cross complementary genes with the risk of breast cancer stratified based on menstrual status. This study revealed that tryptophan allele (R/W-W/W genotype) in X-ray repair cross complementary 1A (Arg194Trp) gene significantly increased the risk of breast cancer (adjusted odds ratio = 1.44, 95% confidence interval = 1.06-1.97, P < .05 for R/W-W/W genotype). Moreover, it was found that tryptophan allele (W/W genotype) at codon 194 of X-ray repair cross complementary 1A (Arg194Trp) gene significantly increased the risk of breast cancer in premenopausal females (crude odds ratio = 1.66, 95% confidence interval = 1.11-2.46, P < .05 for R/W-W/W genotype). The present study did not reveal any significant association of X-ray repair cross complementary 3 (Thr241Met) polymorphism with the risk of breast cancer. The present study has explored that X-ray repair cross complementary 1A (Arg194Trp) gene polymorphism is significantly associated with the increased risk of breast cancer in premenopausal females from northeastern region of India which may be beneficial for prognostic purposes.
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Affiliation(s)
- K Rekha Devi
- 1 Regional Medical Research Centre, NE Region, Indian Council of Medical Research, Dibrugarh, Assam, India
| | - Jishan Ahmed
- 2 Assam Medical College and Hospital, Dibrugarh, Assam, India
| | - Kanwar Narain
- 1 Regional Medical Research Centre, NE Region, Indian Council of Medical Research, Dibrugarh, Assam, India
| | - Kaustab Mukherjee
- 1 Regional Medical Research Centre, NE Region, Indian Council of Medical Research, Dibrugarh, Assam, India
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