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Veena KV, Siddamalla S, Deenadayal M, Shivaji S, Bhanoori M. DNMT1 and DNMT3B gene variants and their association with endometriosis in South Indian women. Mol Biol Rep 2022; 49:321-329. [PMID: 34697715 DOI: 10.1007/s11033-021-06877-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 09/23/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Endometriosis is a multifactorial estrogen dependent gynecological disease characterized by implantation of functional endometrial tissue at ectopic positions. Though this disease is benign, it is associated with an increased risk of malignant transformation. Epigenetic disruptions like aberrant DNA methylation, resulting changes in gene expression capacity, are important in tumor progression and malignant cellular transformation. Therefore, variation in genes involved in DNA methylation might lead to disease susceptibility. PURPOSE To investigate the association between DNA methyl transferases (DNMT1 and DNMT3B) single nucleotide polymorphisms (SNPs) and the risk of endometriosis in South Indian women. METHODS In the present study, we examined the genotypic and allele distribution of DNMT1 (rs10423341C/A, rs2228611G/Aandrs4804490C/A) and DNMT3B (rs1569686G/T) among the endometriosis patients (n = 150) and controls (n = 150). The genotypes were analyzed by polymerase chain reaction (PCR) and sequencing methods. Haplotype frequencies for multiple loci and the standardized disequilibrium coefficient (D') for pairwise linkage disequilibrium (LD) were surveyed by Haploview Software. RESULT Significant increase in the frequencies of DNMT1 rs10423341 (P = 0.04601), rs2228611 (P = 0.00175) and DNMT3B rs1569686 (P = 0.033) genotypes and alleles was observed in patients compared to controls. In addition, the frequency of A/A/C (P = 0.0065) haplotype was significantly high in patients. But the DNMT1 (rs4804490) SNP did not show significant association with the disease. CONCLUSION The DNMT1 and DNMT3B polymorphism may constitute an inheritable risk factor for endometriosis in South Indian women. To the best of our knowledge there is no reported study on the association of polymorphisms in DNMT1 and DNMT3B with endometriosis risk.
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Affiliation(s)
- K V Veena
- Department of Biochemistry, Osmania University, Hyderabad, 500 007, India
| | - Swapna Siddamalla
- Department of Biochemistry, Osmania University, Hyderabad, 500 007, India
| | - Mamata Deenadayal
- Infertility Institute and Research Centre (IIRC), Secunderabad, India
| | - Sisinthy Shivaji
- Centre for Cellular and Molecular Biology (CCMB), Hyderabad, India
- Brien Holden Eye Research Centre, L V Prasad Eye Institute, Hyderabad, India
| | - Manjula Bhanoori
- Department of Biochemistry, Osmania University, Hyderabad, 500 007, India.
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Gaia-Oltean AI, Braicu C, Gulei D, Ciortea R, Mihu D, Roman H, Irimie A, Berindan-Neagoe I. Ovarian endometriosis, a precursor of ovarian cancer: Histological aspects, gene expression and microRNA alterations (Review). Exp Ther Med 2021; 21:243. [PMID: 33603851 PMCID: PMC7851621 DOI: 10.3892/etm.2021.9674] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 12/17/2020] [Indexed: 12/24/2022] Open
Abstract
Ovarian endometriosis is a frequent chronic gynecological disease with an uncertain evolution regarding its progression or association with ovarian malignant lesions. The present review summarized the histological aspects, gene expression and microRNA (miRNA/miR) alterations associated with ovarian endometriosis and cancer and their possible interaction. The endometriosis-ovarian cancer interaction has been proposed by certain researchers as a single entity. Histological results indicated that endometriosis has been in different circumstances coexisting with ovarian cancer, with reference to endometrioid and clear cell carcinoma. Endometriosis with moderate and severe atypia can influence cell proliferation and architecture, resulting in a possible malignant transformation. Gene expression analysis indicated that the pathologies of both endometriosis and ovarian cancer are characterized by genetic instability from a molecular point of view, as several important genetic mutations, including ARID1A, PI3KCA, PTEN, BRCA1, BRCA2, TP53 and KRAS genes, were identified. miRNA alterations have been implicated in the regulation of gene expression. Common dysregulated miRNAs, such as miR-331, miR-335, miR-891, miR-548, miR-124, miR-148, miR-215, miR-192, miR-337, miR-153, miR-155, miR-144, miR-221 and miR-3688 were extensively investigated in understanding endometriosis and ovarian cancer evolution. From a combined viewpoint including histological aspects, gene expression and miRNA alterations, it is reasonable to speculate that endometriosis is associated with ovarian cancer. Ovarian endometriosis lesions may present a risk for ovarian malignant lesions, which supports a model of endometriosis as a malignant precursor. However, the endometriosis-ovarian cancer association is not widely accepted in the literature and additional studies are required to validate this association.
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Affiliation(s)
- Adriana Ioana Gaia-Oltean
- Department of Oncological Surgery, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Cornelia Braicu
- Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 40015 Cluj-Napoca, Romania
| | - Diana Gulei
- MedFuture-Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 40015 Cluj-Napoca, Romania
| | - Razvan Ciortea
- Second Department of Obstetrics and Gynecology, Iuliu Hatieganu University of Medicine and Pharmacy, 400124 Cluj-Napoca, Romania
| | - Dan Mihu
- Second Department of Obstetrics and Gynecology, Iuliu Hatieganu University of Medicine and Pharmacy, 400124 Cluj-Napoca, Romania
| | - Horace Roman
- Center of Endometriosis, Clinique Tivoli-Ducos, 33000 Bordeaux, France
| | - Alexandru Irimie
- Department of Oncological Surgery, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania.,Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 40015 Cluj-Napoca, Romania
| | - Ioana Berindan-Neagoe
- Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 40015 Cluj-Napoca, Romania.,MedFuture-Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 40015 Cluj-Napoca, Romania.,Department of Functional Genomics and Experimental Pathology, Oncology Institute 'Prof. Dr. Ion Chiricuta', 400015 Cluj-Napoca, Romania
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Influence of tumour suppressor gene (TP53, BRCA1 and BRCA2) polymorphisms on polycystic ovary syndrome in South Indian women. Eur J Obstet Gynecol Reprod Biol 2018; 227:13-18. [PMID: 29860059 DOI: 10.1016/j.ejogrb.2018.05.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 05/05/2018] [Accepted: 05/20/2018] [Indexed: 02/04/2023]
Abstract
OBJECTIVE Polycystic Ovary Syndrome (PCOS) is a heterogeneous multifactorial endocrine metabolic disorder. In addition to hyperandrogenism, acne, hirsutism, obesity, oligoanovulation and infertility, insulin resistance is also a common feature in women of PCOS. Tumor suppressor genes (TSGs) perform essential function in the maintenance of genomic stability and regulatory pathways influencing the activity of several replication and transcription factors. The main aim of this study was to investigate the association of Single Nucleotide Polymorphisms of TP53, BRCA1and BRCA2 genes with the susceptibility to PCOS in South Indian women. STUDY DESIGN Present study investigated association between TP53 gene (rs1042522 G/C), BRCA1 (rs71361504 -/GTT, rs3092986 T/C) and BRCA2 (rs206118 A/G) and, SNPs and PCOS risk. Genotyping of TSGs was carried out on DNA from PCOS patients (n = 110) and controls (n = 130) of South Indian origin by polymerase chain reaction (PCR) and confirmed by sequencing analysis. The genotype frequency and allele distributions of cases and controls were analyzed using Fisher's exact test. Haplotype frequencies for multiple loci and the standardized disequilibrium coefficient (D') for pair wise linkage disequilibrium (LD) were assessed by Haploview Software. RESULTS Significant increase in frequencies ofTP53 (rs1042522 G/C), BRCA1 (rs71361504 -/GTT, rs3092986 T/C) genotypes and alleles in patients compared to controls. In addition, the frequency of the C/T (P = 0.002) and A/C (P = 0.012) haplotype was also significantly elevated in patients. But BRCA2 (rs206118 A/G) did not show significant association with PCOS. CONCLUSION The TP53 and BRCA1 may constitute an inheritable risk factor for PCOS in South Indian women.
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Reddyvari H, Govatati S, Matha SK, Korla SV, Malempati S, Pasupuleti SR, Bhanoori M, Nallanchakravarthula V. Therapeutic effect of green tea extract on alcohol induced hepatic mitochondrial DNA damage in albino wistar rats. J Adv Res 2017; 8:289-295. [PMID: 28337346 PMCID: PMC5349453 DOI: 10.1016/j.jare.2017.02.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 02/12/2017] [Accepted: 02/16/2017] [Indexed: 12/12/2022] Open
Abstract
The present study principally sought to investigate the effect of green tea extract (GTE) supplementation on hepatic mitochondrial DNA (mtDNA) damage in alcohol receiving rats. MtDNA was isolated from hepatic tissues of albino wistar rats after alcohol treatment with and without GTE supplementation. Entire displacement loop (D-loop) of mtDNA was screened by PCR-Sanger's sequencing method. In addition, mtDNA deletions and antioxidant activity were measured in hepatic tissue of all rats. Results showed increased frequency of D-loop mutations in alcoholic rats (ALC). DNA mfold analysis predicted higher free energy for 15507C and 16116C alleles compared to their corresponding wild alleles which represents less stable secondary structures with negative impact on overall mtDNA function. Interestingly, D-loop mutations observed in ALC rats were successfully restored on GTE supplementation. MtDNA deletions were observed in ALC rats, but intact native mtDNA was found in ALC + GTE group suggesting alcohol induced oxidative damage of mtDNA and ameliorative effect of GTE. Furthermore, markedly decreased activities of glutathione peroxidise, superoxide dismutase, catalase and glutathione content were identified in ALC rats; however, GTE supplementation significantly (P < 0.05) restored these levels close to normal. In conclusion, green tea could be used as an effective nutraceutical against alcohol induced mitochondrial DNA damage.
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Affiliation(s)
- Hymavathi Reddyvari
- Department of Biochemistry, Sri Krishnadevaraya University, Anantapur 515 003, India
| | - Suresh Govatati
- Department of Biochemistry, Sri Krishnadevaraya University, Anantapur 515 003, India
| | - Sumanth Kumar Matha
- Department of Environmental Sciences, Andhra University, Visakhapatnam 530 003, India
| | - Swapna Vahini Korla
- Department of Biotechnology, Dr BR Ambedkar University, Srikakulam 532 410, India
| | - Sravanthi Malempati
- Department of Biochemistry, Krishna University Dr. MRAR PG Center, Nuzvid 521 201, India
| | - Sreenivasa Rao Pasupuleti
- Department of Advanced Research Centre, Narayana Medical College and Hospital, Nellore 524 003, India
| | - Manjula Bhanoori
- Department of Biochemistry, Osmania University, Hyderabad 500 007, India
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Kori M, Gov E, Arga KY. Molecular signatures of ovarian diseases: Insights from network medicine perspective. Syst Biol Reprod Med 2016; 62:266-82. [PMID: 27341345 DOI: 10.1080/19396368.2016.1197982] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Dysfunctions and disorders in the ovary lead to a host of diseases including ovarian cancer, ovarian endometriosis, and polycystic ovarian syndrome (PCOS). Understanding the molecular mechanisms behind ovarian diseases is a great challenge. In the present study, we performed a meta-analysis of transcriptome data for ovarian cancer, ovarian endometriosis, and PCOS, and integrated the information gained from statistical analysis with genome-scale biological networks (protein-protein interaction, transcriptional regulatory, and metabolic). Comparative and integrative analyses yielded reporter biomolecules (genes, proteins, metabolites, transcription factors, and micro-RNAs), and unique or common signatures at protein, metabolism, and transcription regulation levels, which might be beneficial to uncovering the underlying biological mechanisms behind the diseases. These signatures were mostly associated with formation or initiation of cancer development, and pointed out the potential tendency of PCOS and endometriosis to tumorigenesis. Molecules and pathways related to MAPK signaling, cell cycle, and apoptosis were the mutual determinants in the pathogenesis of all three diseases. To our knowledge, this is the first report that screens these diseases from a network medicine perspective. This study provides signatures which could be considered as potential therapeutic targets and/or as medical prognostic biomarkers in further experimental and clinical studies. Abbreviations DAVID: Database for Annotation, Visualization and Integrated Discovery; DEGs: differentially expressed genes; GEO: Gene Expression Omnibus; KEGG: Kyoto Encyclopedia of Genes and Genomes; LIMMA: Linear Models for Microarray Data; MBRole: Metabolite Biological Role; miRNA: micro-RNA; PCOS: polycystic ovarian syndrome; PPI: protein-protein interaction; RMA: Robust Multi-Array Average; TF: transcription factor.
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Affiliation(s)
- Medi Kori
- a Department of Bioengineering , Marmara University , Istanbul , Turkey
| | - Esra Gov
- a Department of Bioengineering , Marmara University , Istanbul , Turkey
| | - Kazim Yalcin Arga
- a Department of Bioengineering , Marmara University , Istanbul , Turkey
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Govatati S, Malempati S, Saradamma B, Divyamaanasa D, Naidu BP, Bramhachari PV, Narayana N, Shivaji S, Bhanoori M, Tamanam RR, Rao PS, Nallanchakravarthula V. Manganese-superoxide dismutase (Mn-SOD) overexpression is a common event in colorectal cancers with mitochondrial microsatellite instability. Tumour Biol 2016; 37:10357-64. [PMID: 26846100 DOI: 10.1007/s13277-016-4918-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 01/27/2016] [Indexed: 02/07/2023] Open
Abstract
Mitochondrial displacement loop (D-loop) is a hot spot for mitochondrial DNA (mtDNA) alterations that effects cellular reactive oxygen species (ROS) generation. Manganese-superoxide dismutase (Mn-SOD) is a major antioxidant enzyme that protects cells from ROS-mediated damage. In the present study, we investigated the relationship between sequence alterations of mitochondrial D-loop and Mn-SOD expression in colorectal cancer (CRC). Genotyping of entire mitochondrial D-loop (1124 bp) was carried out on mtDNA of analogous tumor and normal tissues from 35 CRC patients of south Indian origin by PCR-sequencing analysis. Tumor-specific large-scale mtDNA deletions and Mn-SOD expression was analyzed by PCR and Western blot analysis, respectively. We identified 87 polymorphisms in the D-loop region of tumor and/or control tissues. Polymorphisms were predominantly located in hypervariable region I (67.9 %) than in II (32.1 %) of D-loop. Significantly increased mtDNA microsatellite instability (mtMSI) [310'C' insertion (P = 0.00001) and T16189C (P = 0.0007)] and elevated Mn-SOD expression was observed in tumor tissues compared with controls. Interestingly, mtMSI was significantly high in tumors with Mn-SOD overexpression. Tumor-specific large-scale mtDNA deletions were not observed in CRC tissues. In conclusion, mtMSI and Mn-SOD overexpression are a common event in CRC. The analysis of mtMSI and/or Mn-SOD expression might help to identify patients at high risk for disease outcome, thereby helping to refine therapeutic decisions in CRC.
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Affiliation(s)
- Suresh Govatati
- Department of Biochemistry, Sri Krishnadevaraya University, Anantapur, 515 003, India
| | - Sravanthi Malempati
- Department of Biochemistry, Dr. MRAR PG Center, Krishna University, Nuzvid, India
| | - Bulle Saradamma
- Department of Biochemistry, Sri Krishnadevaraya University, Anantapur, 515 003, India
| | - Dasi Divyamaanasa
- Gandhi Institute of Technology and Management Dental College, Visakhapatnam, India
| | - B Prathap Naidu
- Department of Biotechnology, Krishna University, Machilipatnam, India
| | | | - Nagesh Narayana
- CSIR-Centre for Cellular and Molecular Biology, Hyderabad, India
| | - Sisinthy Shivaji
- CSIR-Centre for Cellular and Molecular Biology, Hyderabad, India.,Presently at: Jhaveri Microbiology Centre, L V Prasad Eye Institute, Hyderabad, India
| | - Manjula Bhanoori
- Department of Biochemistry, Osmania University, Hyderabad, India
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