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Dutta P, Pal D, Sultana F, Mandal RK, Roy A, Panda CK. Down-regulation of FA-BRCA Pathway in Cervical Carcinoma Gradually Reversed During the Development of Chemo-tolerance: Clinical Implications. Reprod Sci 2024; 31:1122-1138. [PMID: 38012520 DOI: 10.1007/s43032-023-01378-7] [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: 05/24/2023] [Accepted: 09/29/2023] [Indexed: 11/29/2023]
Abstract
Cervical cancer is one of the leading causes of cancer death among females, worldwide. The contributory role of different cellular pathways in the process of carcinogenesis is still poorly understood. Our study was focused here to understand the functional evaluation of key regulatory genes of FA-BRCA pathway in the development of CACX and their role in chemo-tolerance of the disease by analyzing the molecular profile of the genes both in normal and tumour tissue of our sample pool, also validated in in silico datasets. Later on, prognostic importance of the genes was further evaluated in plasma DNA and cisplatin-treated in vitro system. We found that expression profile of FA-BRCA pathway genes was gradually reduced from undifferentiated basal-parabasal layers of normal tissue towards the progression of the disease. Further analysis revealed that frequent promoter methylation [32-55%] and deletion [34-52%] events were the plausible reasons for their reduced expression in CACX. Noticeably, invasion of promoter methylation of the genes [11-17%] in plasma CTCs of CACX patients was positively correlated [p < 0.001] with poor prognosis among patients. On the other hand, functional upregulation of these genes at higher concentrations [IC50-70] of cisplatin was a predictor for the development of drug tolerance, as evaluated in our in vitro study. This finding was supported further by low prevalence of γ-H2X foci formation and reduced expression of DNMT1 at higher concentrations of cisplatin. In totality, we discovered that the FA-BRCA pathway must be inactivated for cancer formation. In contrast, elevated gene expression played a substantial role in building of chemo-tolerance and might be associated with developing increased risk of disease recurrence among patients.
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Affiliation(s)
- Priyanka Dutta
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, 37, S.P. Mukherjee Road, Kolkata, 700026, West Bengal, India
| | - Debolina Pal
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, 37, S.P. Mukherjee Road, Kolkata, 700026, West Bengal, India
| | - Farhin Sultana
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, 37, S.P. Mukherjee Road, Kolkata, 700026, West Bengal, India
| | - Ranajit Kumar Mandal
- Department of Gynaecologic Oncology, Chittaranjan National Cancer Institute, 37, S.P. Mukherjee Road, Kolkata, 700026, West Bengal, India
| | - Anup Roy
- Department of Pathology, Nil Ratan Sircar Medical College and Hospital, Kolkata, 700014, India
| | - Chinmay Kumar Panda
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, 37, S.P. Mukherjee Road, Kolkata, 700026, West Bengal, India.
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Yin F, Zhang Y, Zhang X, Zhang M, Zhang Z, Yin Y, Xu H, Yang Y, Gao Y. The ROS/NF-κB/HK2 axis is involved in the arsenic-induced Warburg effect in human L-02 hepatocytes. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024; 34:150-165. [PMID: 36264688 DOI: 10.1080/09603123.2022.2134559] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Arsenic has been identified as a carcinogen, although the molecular mechanism underlying itscarcinogenesis has not been fully elucidated. To date, only a few studies have attempted to confirm a direct link between oxidative stress and the Warburg effect . This study demonstrated that 0.2 μmol/L As3+ induced the Warburg effect to contribute to abnormal proliferation of L-02 cells, that was mediated by upregulation of hexokinase 2 (HK2), a key enzyme in glycolysis. Further study indicated that arsenic-induced accumulation of reactive oxygen species (ROS) activated the nuclear factor kappa B (NF-κB) signaling pathway by phosphorylation of p65 at the Ser536 and Ser276 sites, leading to upregulated expression of HK2. We therefore concluded that the ROS/NF-κB/HK2 axis contributes to the Warburg effect and cell proliferation induced by low doses of arsenic.AbbreviationsROS, Reactive oxygen species; NAC, N-acetyl-L-cysteine; 2-DG, 2-deoxy-D-glucose; 2-NBDG, 2-Deoxy-2-[(7-nitro-2,1,3-benzoxadiazol-4-yl)amino]-D-glucose.
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Affiliation(s)
- Fanshuo Yin
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, Heilongjiang, China
| | - Ying Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, Heilongjiang, China
| | - Xin Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, Heilongjiang, China
| | - Meichen Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, Heilongjiang, China
| | - Zaihong Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yunyi Yin
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, Heilongjiang, China
| | - Haili Xu
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yanmei Yang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yanhui Gao
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
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Chatterjee N, Sultana F, Roy R, Dey S, Naskar S, Dam A, Bhowmick AK, Begum R, Mandal SS, Mandal RK, Chakrabarti J, Panda CK, Tommasino M, Gheit T, Dutta S. Prevalence of novel gamma HPV types 223 and 225 in oral cavity and skin of Indian normal and neoplastic participants. J Med Virol 2023; 95:e29019. [PMID: 37543989 DOI: 10.1002/jmv.29019] [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: 05/17/2023] [Revised: 07/08/2023] [Accepted: 07/24/2023] [Indexed: 08/08/2023]
Abstract
Gamma-papillomaviruses, though traditionally classified as cutaneotropic, actual tissue tropism is largely unexplored. This study aimed to evaluate the tissue-specific prevalence of two novel-HPV 223 and 225 in samples of oral mucosa and keratinized epithelium of varied skin parts from 226 female and male subjects, with or without neoplastic/dysplastic lesions in oral cavity or cervix. The gamma-human papillomavirus (gamma-HPV) 223 and 225 DNA presences were determined by polymerase chain reaction (PCR) ursing the HPV type-specific primers and confirmed by Sanger sequencing. Viral load in the HPV 223 and HPV 225 positive samples were determined by absolute real-time quantification method. Alpha-HPV DNA prevalence was also checked in oral mucosa to ascertain coinfection status. Novel HPV 223 was present in 4.4% (10/226) oral mucosal samples of the study population; interestingly all were females with no prevalence in their corresponding skin swab samples. Whereas, the prevalence of HPV 225 was found both in the skin and oral mucosa of 28.2% (N = 37/131) female and 17.9% (N = 17/95) male participants. Alongside, HPV 223 viral load was found to be significantly higher (p = 0.02 < 0.05) in the oral mucosa of diseased participants, whereas, HPV 225 viral load was higher in the oral mucosa of normal participants. Our results suggest that gamma-HPV 223 has its prevalence only in the oral mucosal epithelium, whereas, HPV 225 has its prevalence on both mucosal and keratinized skin epithelium, indicating its dual tropism nature.
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Affiliation(s)
- Nilanjana Chatterjee
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Farhin Sultana
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Rituparna Roy
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Samyadipta Dey
- ENT-Head & Neck Oncology Department, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Sukanya Naskar
- ENT-Head & Neck Oncology Department, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Aniruddha Dam
- ENT-Head & Neck Oncology Department, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Anup K Bhowmick
- ENT-Head & Neck Oncology Department, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Rakiba Begum
- Department of Gynecological Oncology, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Shyam S Mandal
- Department of Epidemiology and Biostatistics, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Ranajit K Mandal
- Department of Gynecological Oncology, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Jayanta Chakrabarti
- Department of Surgical Oncology, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Chinmay K Panda
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Massimo Tommasino
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer, Lyon, France
| | - Tarik Gheit
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer, Lyon, France
| | - Sankhadeep Dutta
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
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Basu M, Mukhopadhyay D, Chakraborty B, Ghosh S, Pal DK, Ghosh A, Panda CK. Differential operation of MLH1/MSH2 and FANCD2 crosstalk in chemotolerant bladder carcinoma: a clinical and therapeutic intervening study. Mol Cell Biochem 2023; 478:1599-1610. [PMID: 36434146 DOI: 10.1007/s11010-022-04616-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 11/14/2022] [Indexed: 11/26/2022]
Abstract
We aimed to understand the crosstalk between mismatch repair (MMR) and FA-BRCA pathway in primary bladder carcinoma (BlCa) samples as well as in chemotolerant cell line. We analysed the genetic alterations of MLH1 and MSH2 (MMR-related genes) and after that we correlated it with the nuclear translocation of FANCD2 protein. Next, we evaluated this crosstalk in T24 BlCa cell line in response to doxorubicin treatment. In primary BlCa tumors, infrequent genetic deletion (17-20%) but frequent promoter methylation (28-55%) of MLH1 and MSH2 was observed, where MLH1 was significantly (p < 0.05) more methylated among the early staged samples (NMIBC). However, MSH2 was significantly more altered among the NMIBC samples, signifying the importance of MMR pathway during the early pathogenesis of the disease. Furthermore, BlCa samples with underexpressed MLH1/MSH2 protein possessed cytoplasmic FANCD2 protein; encouraging that inefficiency of MMR proteins might restrict FANCD2 nuclear translocation. Next, we analysed publicly available data in GEO2R tool where we observed that in response to chemotherapeutic drugs, expression of MLH1, MSH2 and FANCD2 were diminishing. Validating this result in doxorubicin tolerant T24 cells, we found that expression of MLH1 and MSH2 was gradually decreased with increasing dose of doxorubicin. Interestingly, FANCD2 mono-ubiquitination (L-form) was also reduced in chemotolerant T24 cells. The crosstalk between MMR and FA-BRCA pathway was substantiated in the primary BlCa tumors. Further, in response to doxorubicin, this crosstalk was found to be hampered due to under-expression of MLH1 and MSH2 gene, thereby rendering chemotolerance.
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Affiliation(s)
- Mukta Basu
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, 37 SPMukherjee Road, Kolkata, West Bengal, 700026, India
- Department of Medical Oncology, Cedars Sinai Medical Center, Los Angeles, United States
| | - Debalina Mukhopadhyay
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, 37 SPMukherjee Road, Kolkata, West Bengal, 700026, India
| | - Balarko Chakraborty
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, 37 SPMukherjee Road, Kolkata, West Bengal, 700026, India
| | - Sabnam Ghosh
- Department of Life Science, Presidency University, 86/1, College Street, Kolkata, 700073, India
| | - Dilip Kumar Pal
- Department of Urology, IPGMER, SSKM, 244 A.J.C. Bose Road, Kolkata, 700020, India
| | - Amlan Ghosh
- Department of Life Science, Presidency University, 86/1, College Street, Kolkata, 700073, India
| | - Chinmay Kumar Panda
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, 37 SPMukherjee Road, Kolkata, West Bengal, 700026, India.
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Zhang J, Ma L, Li B, Chen X, Wang D, Zhang A. Identification of biomarkers for risk assessment of arsenicosis based on untargeted metabolomics and machine learning algorithms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 870:161861. [PMID: 36716877 DOI: 10.1016/j.scitotenv.2023.161861] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 01/08/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Long-term exposure to inorganic arsenic may lead to arsenicosis. There are, however, currently no validated metabolic biomarkers used for the identification of arsenicosis risk. This study aims to identify metabolites associated with arsenicosis and establish prediction models for risk assessment based on untargeted metabolomics and machine learning algorithms. METHODS In total, 105 coal-borne arsenicosis patients, with 35 subjects in each of the mild, moderate, and severe subgroups according to their symptom severity, and 60 healthy residents were enrolled from Guizhou, China. Ultra-high performance liquid chromatography-tandem mass spectrometer (UHPLC-MS/MS) was utilized to acquire the plasma metabolic profiles of the studied subjects. Statistical analysis was used to identify disease-associated metabolites. Machine learning algorithms and the identified metabolic biomarkers were resorted to assess the arsenicosis risk. RESULTS A total of 143 metabolic biomarkers, with organic acids being the majority, were identified to be closely associated with arsenicosis, and the most involved pathway was glycine, serine, and threonine metabolism. Comparative analysis of metabolites in arsenicosis patients with different symptom severity revealed 422 altered molecules, where disrupted metabolism of beta-alanine and arginine demonstrated the most significance. For risk assessment, the model established by a single biomarker (L-carnosine) could undoubtedly discriminate arsenicosis patients from the healthy. For classifying arsenicosis patients with different severity, the model established using 52 metabolites and linear discriminate analysis (LDA) algorithm yielded an accuracy of 0.970-0.979 on calibration set (n = 132) and 0.818-0.848 on validation set (n = 33). CONCLUSION Altered metabolites and disrupted pathways are prevalent in arsenicosis patients; The disrupted metabolism of one carbon and dysfunction of antioxidant defense system may partially be causes of the systematic multi-organ damage and carcinogenesis in arsenicosis patients; Metabolic biomarkers, combined with machine learning algorithms, could be efficient for risk assessment and early identification of arsenicosis.
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Affiliation(s)
- Jin Zhang
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China
| | - Lu Ma
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China
| | - Boyan Li
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China
| | - Xiong Chen
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China
| | - Dapeng Wang
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China
| | - Aihua Zhang
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China.
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Dutta P, Basu M, Roy A, Mandal RK, Panda CK. High nuclear expression of DNMT1 in correlation with inactivation of TET1 portray worst prognosis among the cervical carcinoma patients: clinical implications. J Mol Histol 2023; 54:89-102. [PMID: 36692670 DOI: 10.1007/s10735-023-10114-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 01/15/2023] [Indexed: 01/25/2023]
Abstract
In this study, we aimed to understand the interplay of the epigenetic modifier genes DNMT1 and TET1 along with HPV infection in the cervical epithelium and how it changes during tumorigenesis. For this purpose, initially the bioinformatical analysis (methylation and expression profile) of DNMT1 and TET1 was analyzed in the TCGA dataset. Next genetic (deletion) and epigenetic profiling (promoter methylation) of DNMT1 and TET1 were done in our sample pool and also validated in CACX cell lines as well. The results were further correlated with different clinicopathological parameters. Our data revealed that HPV infection in basal/parabasal layers of cervical epithelium actually disrupts the epigenetic homeostasis of DNMT1 and TET1 proteins which ultimately leads to the high expression of DNMT1 along with further reduction in TET1 protein during the development of carcinoma. Further, in-depth look into the results revealed that comparatively low methylation frequency of DNMT1 coupled with high promoter methylation and deletion frequency [22-46%] of TET1 were the plausible reasons of their antagonistic expression profile during the progression of the disease. Interestingly, the prevalence of DNMT1 [9.1%] and TET1 promoter methylation [22.7%] found in both the plasma DNA of the respective CACX patients implicated its diagnostic importance in this study. Lastly, molecular alteration of TET1 alone or in combination with DNMT1 showed the worst overall survival among the patients. Hence, it may be concluded that an inverse molecular profile of DNMT1 and TET1 genes seen in the proliferative basal-parabasal layers of the cervical epithelium was aggravated during the development of CACX along with genetic and epigenetic changes due to HPV infection.
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Affiliation(s)
- Priyanka Dutta
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, 37, S.P. Mukherjee Road, Kolkata, West Bengal, 700026, India
| | - Mukta Basu
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, 37, S.P. Mukherjee Road, Kolkata, West Bengal, 700026, India
| | - Anup Roy
- Department of Pathology, Nil Ratan Sircar Medical College and Hospital, Kolkata, 700014, India
| | - Ranajit Kumar Mandal
- Department of Gynaecologic Oncology, Chittaranjan National Cancer Institute, 37, S.P. Mukherjee Road, Kolkata, West Bengal, 700026, India
| | - Chinmay Kumar Panda
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, 37, S.P. Mukherjee Road, Kolkata, West Bengal, 700026, India.
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Panda C, Islam S, Basu M, Roy A, Alam N. Association of Augmented Immune-Staining of G-Quadruplex Tertiary DNA Structure in Chemo-Tolerant TNBC with Downregulation of WNT/Epidermal Growth Factor Receptor Pathway receptor Genes: A Pilot Clinicopathological Study. JOURNAL OF RADIATION AND CANCER RESEARCH 2023. [DOI: 10.4103/jrcr.jrcr_23_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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Nail AN, McCaffrey LM, Banerjee M, Ferragut Cardoso AP, States JC. Chronic arsenic exposure suppresses ATM pathway activation in human keratinocytes. Toxicol Appl Pharmacol 2022; 446:116042. [DOI: 10.1016/j.taap.2022.116042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 04/19/2022] [Accepted: 04/27/2022] [Indexed: 01/15/2023]
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9
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Basu M, Chatterjee A, Chakraborty B, Chatterjee E, Ghosh S, Samadder S, Pal DK, Roy A, Chakrabarti J, Ghosh A, Panda CK. High nuclear expression of HIF1α, synergizing with inactivation of LIMD1 and VHL, portray worst prognosis among the bladder cancer patients: association with arsenic prevalence. J Cancer Res Clin Oncol 2021; 147:2309-2322. [PMID: 34080067 DOI: 10.1007/s00432-021-03661-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 05/05/2021] [Indexed: 11/25/2022]
Abstract
PURPOSE Our study was aimed to understand the importance of LIMD1-VHL-HIF1α pathway in development of bladder carcinoma (BlCa) in association with arsenic prevalence. METHODS At first, the mRNA expression pattern of the genes of this pathway (LIMD1, VHL and HIF1α) was checked in GEO datasets and in our samples. Next, genetic and epigenetic profiling of LIMD1 and VHL was done in our sample pool, validated in T24 BlCa cell line. The results were next correlated with various clinico-pathological parameters. RESULTS Differential under-expression of LIMD1 and VHL genes was found in muscle-invasive BlCa (MIBC) in comparison to non-muscle-invasive BlCa (NMIBC). However, HIF1α protein, but mRNA, was found to be overexpressed among the MIBC samples; depicting the probability of HIF1α protein stabilization. Analysis of genetic and epigenetic profiles of LIMD1 and VHL exposed a frequent promoter methylation of LIMD1 gene in MIBC samples. Further, in-depth look into the results unveiled that the high nuclear expression of HIF1α was significantly correlated with genetic alterations of LIMD1, alone or in combination with VHL. Moreover, treating the T24 cells with a de-methylating agent (5-aza-2'-deoxycytidine) re-expressed the methylated LIMD1 and VHL genes, which in turn, reduced the HIF1α protein level significantly. Additionally, patients with high arsenic content (> 112 ng/g, AsH) seemed to have recurrent promoter methylation in LIMD1, as well as co-methylation/alteration of LIMD1 and VHL gene. Lastly, high nuclear expression of HIF1α in association with co-alteration of VHL and LIMD1 showed the worst overall survival (OS) among the patients. CONCLUSION To conclude, MIBC samples portrayed higher alterations in VHL and LIMD1, thereby, stabilizing HIF1α protein and lowering the OS of patients.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Arsenic Poisoning/diagnosis
- Arsenic Poisoning/epidemiology
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Carcinoma, Transitional Cell/diagnosis
- Carcinoma, Transitional Cell/epidemiology
- Carcinoma, Transitional Cell/genetics
- Carcinoma, Transitional Cell/pathology
- Cell Line, Tumor
- Cell Nucleus/genetics
- Cell Nucleus/metabolism
- Cell Nucleus/pathology
- Comorbidity
- DNA Methylation
- Datasets as Topic
- Female
- Gene Expression Regulation, Neoplastic
- Gene Silencing
- Humans
- Hypoxia-Inducible Factor 1, alpha Subunit/genetics
- Hypoxia-Inducible Factor 1, alpha Subunit/metabolism
- Intracellular Signaling Peptides and Proteins/genetics
- Intracellular Signaling Peptides and Proteins/metabolism
- LIM Domain Proteins/genetics
- LIM Domain Proteins/metabolism
- Male
- Middle Aged
- Neoplasm Invasiveness
- Prevalence
- Prognosis
- Survival Analysis
- Urinary Bladder Neoplasms/diagnosis
- Urinary Bladder Neoplasms/epidemiology
- Urinary Bladder Neoplasms/genetics
- Urinary Bladder Neoplasms/pathology
- Von Hippel-Lindau Tumor Suppressor Protein/genetics
- Von Hippel-Lindau Tumor Suppressor Protein/metabolism
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Affiliation(s)
- Mukta Basu
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, 37 S. P. Mukherjee Road, Kolkata, West Bengal, 700026, India
| | - Amvrin Chatterjee
- Department of Urology, IPGMER, SSKM, 244 A.J.C. Bose Road, Kolkata, 700020, India
| | - Balarko Chakraborty
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, 37 S. P. Mukherjee Road, Kolkata, West Bengal, 700026, India
| | - Essha Chatterjee
- National Institute of Pharmaceutical Education and Research, Kukatpally Industrial Estate, Balanagar, Hyderabad, Telangana, 500037, India
| | - Sabnam Ghosh
- Department of Life Science, Presidency University, 86/1, College Street, Kolkata, 700073, India
| | - Sudip Samadder
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, 37 S. P. Mukherjee Road, Kolkata, West Bengal, 700026, India
| | - Dilip Kumar Pal
- Department of Urology, IPGMER, SSKM, 244 A.J.C. Bose Road, Kolkata, 700020, India
| | - Anup Roy
- Nil Ratan Sarkar Medical College and Hospital, Kolkata, West Bengal, India
| | - Jayanta Chakrabarti
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, 37 S. P. Mukherjee Road, Kolkata, West Bengal, 700026, India
| | - Amlan Ghosh
- Department of Life Science, Presidency University, 86/1, College Street, Kolkata, 700073, India
| | - Chinmay Kumar Panda
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, 37 S. P. Mukherjee Road, Kolkata, West Bengal, 700026, India.
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