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Szewczuk W, Szewczuk O, Czajkowski K, Gromadka R, Man YG, Wałędziak M, Semczuk A. Methylation of the Selected TP53 Introns in Advanced-Stage Ovarian Carcinomas. J Cancer 2024; 15:4040-4046. [PMID: 38947384 PMCID: PMC11212084 DOI: 10.7150/jca.94945] [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: 02/01/2024] [Accepted: 05/03/2024] [Indexed: 07/02/2024] Open
Abstract
Objective: Advanced-stage ovarian cancer (OC) is among the most fatal female genital tract neoplasms worldwide. Although different genetic mechanisms have been shown to be involved in ovarian carcinogenesis, the role of TP53 introns methylation is still unresolved. We performed methylation analysis of introns 1, 3, and 4 of the TP53 to identify patterns in primary stage III OCs, corresponding metastases, and healthy tissues. Methods: The study involved samples of paraffin-embedded tissues obtained from 80 patients with stage III OCs, who underwent surgery at the Department of Gynecology and Gynecologic Oncology of the Military Institute of Medicine in Warsaw, Poland. Altogether, 40 serous-type G2/3 OCs and 40 endometrioid-type G2/3 OCs were included. From the same patient, metastatic and normal tissues were simultaneously analyzed. As a control group, 80 tissue samples were collected from patients after bariatric operations. Human ovarian cancer A2780 cell line was also investigated. Total genomic DNA was isolated from paraffin-embedded tissue blocks and the methylation analysis was performed by bisulfite DNA conversion, DNA amplification with specific primers, cloning, and DNA sequencing. Results: All of the samples of intron 1 of TP53 were un-methylated in OCs, metastatic tissues, and in healthy tissues from the same patient. Also, no methylation of TP53 intron 1 was detected in cells from the human A2780 ovarian cancer cell line and in all samples from control group. In all samples, introns 3 and 4 of the TP53 were methylated in primary tumors, metastatic tissue, and in healthy tissue from the same patient, in human A2780 ovarian cell line, and in DNA samples from healthy patients. None of the clinicopatholocal features was related to the TP53 introns methylation status. Conclusions: Our data on TP53 introns methylation sheds new light on the mechanism of p53 activity for a better understanding of cancer biology. The study suggests the existence of an additional regulation rule of TP53 activity that involves demethylation-methylation mechanisms. Methylation at introns 3 and 4 may also overall help in protecting TP53 against damage by viral restrictases or viral DNA integration.
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Affiliation(s)
- Wiktor Szewczuk
- Department of Pathology, Military Institute of Medicine, Warsaw, Poland
- Department of Gynecology and Gynecologic Oncology, Military Institute of Medicine, Warsaw, Poland
| | - Oksana Szewczuk
- II ND Department of Obstetrics and Gynecology, Warsaw Medical University, Princess Anna Mazowiecka Hospital, Warsaw, Poland
| | - Krzysztof Czajkowski
- II ND Department of Obstetrics and Gynecology, Warsaw Medical University, Princess Anna Mazowiecka Hospital, Warsaw, Poland
| | - Robert Gromadka
- Laboratory of DNA Sequencing and Oligonucleotide Synthesis, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - Yan-Gao Man
- Department of Pathology, Hackensack Meridian, Health-Hackensack University Medical Center, Hackensack, New Jersey, NJ, USA
| | - Maciej Wałędziak
- Department of Surgery, Military Institute of Medicine, Warsaw, Poland
| | - Andrzej Semczuk
- II ND Department of Gynecological Surgery and Gynecological Oncology, Lublin Medical University, Lublin, Poland
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Li X, Hou Y, Han G, Yang Y, Wang S, Lv X, Gao M. S100A4/NF-κB axis mediates the anticancer effect of epigallocatechin-3-gallate in platinum-resistant ovarian cancer. iScience 2024; 27:108885. [PMID: 38313051 PMCID: PMC10835441 DOI: 10.1016/j.isci.2024.108885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 12/06/2023] [Accepted: 01/08/2024] [Indexed: 02/06/2024] Open
Abstract
Resistance to cisplatin (cis-dichlorodiamineplatinum, DDP) in ovarian cancer is a significant clinical challenge. Epigallocatechin-3-gallate (EGCG) has shown promise in cancer therapy. However, its effects on DDP-resistant ovarian cancer remain understudied. This study aims to assess the impact of EGCG on DDP-resistant cells and elucidate the associated molecular mechanisms. DDP-resistant cell lines were utilized for biological characterization. EGCG effectively inhibited proliferation, mobility, and induced apoptosis in OC/DDP cells. It downregulated the expression of S100A4 and NF-κB while upregulating p53 expression. These effects were reversed upon overexpression of S100A4 or NF-κB. In vivo experiments confirmed tumor inhibition and KI67 inhibition by EGCG. Moreover, EGCG downregulated the expression of S100A4 and NF-κB while upregulating p53 in xenograft mice compared to those without EGCG treatment. This study suggests that EGCG suppresses cancer progression through the S100A4/NF-κB signaling pathway, involving interaction with p53. EGCG holds potential as an anticancer candidate for OC/DDP.
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Affiliation(s)
- Xiaoli Li
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Henan 450052, China
| | - Yidan Hou
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Henan 450052, China
| | - Gaoyang Han
- Department of Thoracic Surgery, Zhengzhou Central Hospital, Henan 450052, China
| | - Yudan Yang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Henan 450052, China
| | - Shaofang Wang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Henan 450052, China
| | - Xiufang Lv
- Department of Radiation Oncology, The First Affiliated Hospital of Zhengzhou University, Henan 450052, China
| | - Ming Gao
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Henan 450052, China
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Gencel-Augusto J, Lozano G. p53 tetramerization: at the center of the dominant-negative effect of mutant p53. Genes Dev 2021; 34:1128-1146. [PMID: 32873579 PMCID: PMC7462067 DOI: 10.1101/gad.340976.120] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In this review, Gencel-Augusto and Lozano summarize the data on p53 mutants with a functional tetramerization domain that form mixed tetramers and in some cases have dominant-negative effects (DNE) that inactivate wild-type p53. They conclude that the DNE is mostly observed after DNA damage but fails in other contexts. The p53 tumor suppressor functions as a tetrameric transcription factor to regulate hundreds of genes—many in a tissue-specific manner. Missense mutations in cancers in the p53 DNA-binding and tetramerization domains cement the importance of these domains in tumor suppression. p53 mutants with a functional tetramerization domain form mixed tetramers, which in some cases have dominant-negative effects (DNE) that inactivate wild-type p53. DNA damage appears necessary but not sufficient for DNE, indicating that upstream signals impact DNE. Posttranslational modifications and protein–protein interactions alter p53 tetramerization affecting transcription, stability, and localization. These regulatory components limit the dominant-negative effects of mutant p53 on wild-type p53 activity. A deeper understanding of the molecular basis for DNE may drive development of drugs that release WT p53 and allow tumor suppression.
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Affiliation(s)
- Jovanka Gencel-Augusto
- Genetics and Epigenetics Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, Texas 77030, USA.,Department of Genetics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Guillermina Lozano
- Genetics and Epigenetics Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, Texas 77030, USA.,Department of Genetics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
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Xu HY, Song HM, Zhou Q. Comprehensive analysis of the expression and prognosis for S100 in human ovarian cancer: A STROBE study. Medicine (Baltimore) 2020; 99:e22777. [PMID: 33217795 PMCID: PMC7676574 DOI: 10.1097/md.0000000000022777] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
S100 family members are frequently deregulated in human malignancies, including ovarian cancer. However, the prognostic roles of each individual S100 family member in ovarian cancer (OC) patients remain elusive. In the present study, we assessed the prognostic roles and molecular function of 20 individual members of the S100 family in OC patients using GEPIA, Kaplan-Meier plotter, SurvExpress, GeneMANIA and Funrich database. Our results indicated that the mRNA expression levels of S100A1, S100A2, S100A4, S100A5, S100A11, S100A14, and S100A16 were significantly upregulated in patients with OC, and high mRNA expression of S100A1, S100A3, S100A5, S100A6, and S100A13 were significantly correlated with better overall survival, while increased S100A2, S100A7A, S100A10, and S100A11 mRNA expressions were associated with worse prognosis in OC patients. In stratified analysis, the trends of high expression of individual S100 members were nearly the same in different pathological grade, clinical stage, TP53 mutation status, and treatment. More importantly, S100 family signatures may be useful potential prognostic markers for OC. These findings suggest that S100 family plays a vital role in prognostic value and could potentially be an S100-targeted inhibitors for OC patients.
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Affiliation(s)
- Hong-Yu Xu
- Department of Gynecology and Obstetrics, the Second People's Hospital of Yichang, China Three Gorges University
| | - Hua-Mei Song
- Department of Gynecology and Obstetrics, the People's Hospital of China Three Gorges University/the First People's Hospital of Yichang, Yichang, Hubei, China
| | - Quan Zhou
- Department of Gynecology and Obstetrics, the People's Hospital of China Three Gorges University/the First People's Hospital of Yichang, Yichang, Hubei, China
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Shi Q, Xue C, Yuan X, He Y, Yu Z. Gene signatures and prognostic values of m1A-related regulatory genes in hepatocellular carcinoma. Sci Rep 2020; 10:15083. [PMID: 32934298 PMCID: PMC7492257 DOI: 10.1038/s41598-020-72178-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 08/18/2020] [Indexed: 02/07/2023] Open
Abstract
Hepatocellular carcinoma (HCC) ranks fourth in cancer-related mortality worldwide. N1-methyladenosine (m1A), a methylation modification on RNA, is gaining attention for its role across diverse biological processes. However, m1A-related regulatory genes expression, its relationship with clinical prognosis, and its role in HCC remain unclear. In this study, we utilized The Cancer Genome Atlas-Liver Hepatocellular Carcinoma (TCGA-LIHC) database to investigate alterations within 10 m1A-related regulatory genes and observed a high mutation frequency (23/363). Cox regression analysis and least absolute shrinkage and selection operator were used to explore the association between m1A-related regulatory genes expression and HCC patient survival and identified four regulators that were remarkably associated with HCC patient prognosis. Additionally, an independent cohort from International Cancer Genome Consortium was studied to validate our discoveries and found to be consistent with those in the TCGA dataset. In terms of mechanism, gene set enrichment analysis linked these four genes with various physiological roles in cell division, the MYC pathway, protein metabolism, and mitosis. Kyoto Encyclopedia of Genes and Genomes analysis revealed that PI3K/Akt signaling pathway had potential relevance to m1A-related regulatory genes in HCC. These findings indicate that m1A-related regulatory genes may play crucial roles in regulating HCC progression and be exploited for diagnostic and prognostic purposes.
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Affiliation(s)
- Qingmiao Shi
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China.,Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China
| | - Chen Xue
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China.,Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China
| | - Xin Yuan
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China.,Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China
| | - Yuting He
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China. .,Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China.
| | - Zujiang Yu
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China. .,Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China.
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Sun Y, Xiaoyan H, Yun L, Chaoqun L, Jialing W, Liu Y, Yingqi Z, Peipei Y, Junjun P, Yuanming L. Identification of Key Candidate Genes and Pathways for Relationship between Ovarian Cancer and Diabetes Mellitus Using Bioinformatical Analysis. Asian Pac J Cancer Prev 2019; 20:145-155. [PMID: 30678426 PMCID: PMC6485580 DOI: 10.31557/apjcp.2019.20.1.145] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Ovarian cancer is one of the three major gynecologic cancers in the world. The aim of this study is to find the
relationship between ovarian cancer and diabetes mellitus by using the genetic screening technique. By GEO database
query and related online tools of analysis, we analyzed 185 cases of ovarian cancer and 10 control samples from
GSE26712, and a total of 379 different genes were identified, including 104 up-regulated genes and 275 down-regulated
genes. The up-regulated genes were mainly enriched in biological processes, including cell adhesion, transcription of
nucleic acid and biosynthesis, and negative regulation of cell metabolism. The down-regulated genes were enriched in
cell proliferation, migration, angiogenesis and macromolecular metabolism. Protein-protein interaction was analyzed
by network diagram and module synthesis analysis. The top ten hub genes (CDC20, H2AFX, ENO1, ACTB, ISG15,
KAT2B, HNRNPD, YWHAE, GJA1 and CAV1) were identified, which play important roles in critical signaling
pathways that regulate the process of oxidation-reduction reaction and carboxylic acid metabolism. CTD analysis
showed that the hub genes were involved in 1,128 distinct diseases (bonferroni-corrected P<0.05). Further analysis by
drawing the Kaplan-Meier survival curve indicated that CDC20 and ISG15 were statistically significant (P<0.05). In
conclusion, glycometabolism was related to ovarian cancer and genes and proteins in glycometabolism could serve as
potential targets in ovarian cancer treatment.
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Affiliation(s)
- Yi Sun
- Department of Toxicology, Guilin Medical University School of Public Health, Guilin, China.
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