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Yang G, Li C, Tao F, Liu Y, Zhu M, Du Y, Fei C, She Q, Chen J. The emerging roles of lysine-specific demethylase 4A in cancer: Implications in tumorigenesis and therapeutic opportunities. Genes Dis 2024; 11:645-663. [PMID: 37692513 PMCID: PMC10491877 DOI: 10.1016/j.gendis.2022.12.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 12/28/2022] [Indexed: 09/12/2023] Open
Abstract
Lysine-specific demethylase 4 A (KDM4A, also named JMJD2A, KIA0677, or JHDM3A) is a demethylase that can remove methyl groups from histones H3K9me2/3, H3K36me2/3, and H1.4K26me2/me3. Accumulating evidence suggests that KDM4A is not only involved in body homeostasis (such as cell proliferation, migration and differentiation, and tissue development) but also associated with multiple human diseases, especially cancers. Recently, an increasing number of studies have shown that pharmacological inhibition of KDM4A significantly attenuates tumor progression in vitro and in vivo in a range of solid tumors and acute myeloid leukemia. Although there are several reviews on the roles of the KDM4 subfamily in cancer development and therapy, all of them only briefly introduce the roles of KDM4A in cancer without systematically summarizing the specific mechanisms of KDM4A in various physiological and pathological processes, especially in tumorigenesis, which greatly limits advances in the understanding of the roles of KDM4A in a variety of cancers, discovering targeted selective KDM4A inhibitors, and exploring the adaptive profiles of KDM4A antagonists. Herein, we present the structure and functions of KDM4A, simply outline the functions of KDM4A in homeostasis and non-cancer diseases, summarize the role of KDM4A and its distinct target genes in the development of a variety of cancers, systematically classify KDM4A inhibitors, summarize the difficulties encountered in the research of KDM4A and the discovery of related drugs, and provide the corresponding solutions, which would contribute to understanding the recent research trends on KDM4A and advancing the progression of KDM4A as a drug target in cancer therapy.
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Affiliation(s)
- Guanjun Yang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, Zhejiang 315211, China
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, China
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Changyun Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, Zhejiang 315211, China
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, China
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Fan Tao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, Zhejiang 315211, China
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, China
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Yanjun Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, Zhejiang 315211, China
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, China
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Minghui Zhu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, Zhejiang 315211, China
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, China
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Yu Du
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, Zhejiang 315211, China
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, China
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Chenjie Fei
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, Zhejiang 315211, China
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, China
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Qiusheng She
- School of Life Science and Engineering, Henan University of Urban Construction, Pingdingshan, Henan 467044, China
| | - Jiong Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, Zhejiang 315211, China
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, China
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, Ningbo University, Ningbo, Zhejiang 315211, China
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Lombino J, Vallone R, Cimino M, Gulotta MR, De Simone G, Morando MA, Sabbatella R, Di Martino S, Fogazza M, Sarno F, Coronnello C, De Rosa M, Cipollina C, Altucci L, Perricone U, Alfano C. In-silico guided chemical exploration of KDM4A fragments hits. Clin Epigenetics 2023; 15:197. [PMID: 38129913 PMCID: PMC10740270 DOI: 10.1186/s13148-023-01613-7] [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: 08/07/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Lysine demethylase enzymes (KDMs) are an emerging class of therapeutic targets, that catalyse the removal of methyl marks from histone lysine residues regulating chromatin structure and gene expression. KDM4A isoform plays an important role in the epigenetic dysregulation in various cancers and is linked to aggressive disease and poor clinical outcomes. Despite several efforts, the KDM4 family lacks successful specific molecular inhibitors. RESULTS Herein, starting from a structure-based fragments virtual screening campaign we developed a synergic framework as a guide to rationally design efficient KDM4A inhibitors. Commercial libraries were used to create a fragments collection and perform a virtual screening campaign combining docking and pharmacophore approaches. The most promising compounds were tested in-vitro by a Homogeneous Time-Resolved Fluorescence-based assay developed for identifying selective substrate-competitive inhibitors by means of inhibition of H3K9me3 peptide demethylation. 2-(methylcarbamoyl)isonicotinic acid was identified as a preliminary active fragment, displaying inhibition of KDM4A enzymatic activity. Its chemical exploration was deeply investigated by computational and experimental approaches which allowed a rational fragment growing process. The in-silico studies guided the development of derivatives designed as expansion of the primary fragment hit and provided further knowledge on the structure-activity relationship. CONCLUSIONS Our study describes useful insights into key ligand-KDM4A protein interaction and provides structural features for the development of successful selective KDM4A inhibitors.
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Affiliation(s)
- Jessica Lombino
- Molecular Informatics Group, Fondazione Ri.MED, 90100, Palermo, Italy
- C4T S.r.l., Colosseum Combinatorial Chemistry Center, 00133, Rome, Italy
| | - Rosario Vallone
- Structural Biology and Biophysics Unit, Fondazione Ri.MED, 90100, Palermo, Italy
| | - Maura Cimino
- Target Identification and Screening Group, Fondazione Ri.MED, 90100, Palermo, Italy
| | | | - Giada De Simone
- Molecular Informatics Group, Fondazione Ri.MED, 90100, Palermo, Italy
| | - Maria Agnese Morando
- Structural Biology and Biophysics Unit, Fondazione Ri.MED, 90100, Palermo, Italy
| | - Raffaele Sabbatella
- Structural Biology and Biophysics Unit, Fondazione Ri.MED, 90100, Palermo, Italy
| | | | - Mario Fogazza
- Target Identification and Screening Group, Fondazione Ri.MED, 90100, Palermo, Italy
- Axxam SpA, 20091, Bresso, MI, Italy
| | - Federica Sarno
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania "L. Vanvitelli", 80100, Naples, Italy
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, 9713, Groningen, GZ, The Netherlands
| | | | - Maria De Rosa
- Medicinal Chemistry Group, Fondazione Ri.MED, 90100, Palermo, Italy
| | - Chiara Cipollina
- Target Identification and Screening Group, Fondazione Ri.MED, 90100, Palermo, Italy
| | - Lucia Altucci
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania "L. Vanvitelli", 80100, Naples, Italy
- BIOGEM, 83031, Ariano Irpino, AV, Italy
- IEOS-CNR, 80100, Naples, Italy
| | - Ugo Perricone
- Molecular Informatics Group, Fondazione Ri.MED, 90100, Palermo, Italy.
| | - Caterina Alfano
- Structural Biology and Biophysics Unit, Fondazione Ri.MED, 90100, Palermo, Italy.
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3
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Zhao J, Li B, Ren Y, Liang T, Wang J, Zhai S, Zhang X, Zhou P, Zhang X, Pan Y, Gao F, Zhang S, Li L, Yang Y, Deng X, Li X, Chen L, Yang D, Zheng Y. Histone demethylase KDM4A plays an oncogenic role in nasopharyngeal carcinoma by promoting cell migration and invasion. Exp Mol Med 2021; 53:1207-1217. [PMID: 34385569 PMCID: PMC8417295 DOI: 10.1038/s12276-021-00657-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 06/07/2021] [Accepted: 06/15/2021] [Indexed: 02/07/2023] Open
Abstract
Compelling evidence has indicated the vital role of lysine-specific demethylase 4 A (KDM4A), hypoxia-inducible factor-1α (HIF1α) and the mechanistic target of rapamycin (mTOR) signaling pathway in nasopharyngeal carcinoma (NPC). Therefore, we aimed to investigate whether KDM4A affects NPC progression by regulating the HIF1α/DDIT4/mTOR signaling pathway. First, NPC and adjacent tissue samples were collected, and KDM4A protein expression was examined by immunohistochemistry. Then, the interactions among KDM4A, HIF1α and DDIT4 were assessed. Gain- and loss-of-function approaches were used to alter KDM4A, HIF1α and DDIT4 expression in NPC cells. The mechanism of KDM4A in NPC was evaluated both in vivo and in vitro via RT-qPCR, Western blot analysis, MTT assay, Transwell assay, flow cytometry and tumor formation experiments. KDM4A, HIF1α, and DDIT4 were highly expressed in NPC tissues and cells. Mechanistically, KDM4A inhibited the enrichment of histone H3 lysine 9 trimethylation (H3K9me3) in the HIF1α promoter region and thus inhibited the methylation of HIF1α to promote HIF1α expression, thus upregulating DDIT4 and activating the mTOR signaling pathway. Overexpression of KDM4A, HIF1α, or DDIT4 or activation of the mTOR signaling pathway promoted SUNE1 cell proliferation, migration, and invasion but inhibited apoptosis. KDM4A silencing blocked the mTOR signaling pathway by inhibiting the HIF1α/DDIT4 axis to inhibit the growth of SUNE1 cells in vivo. Collectively, KDM4A silencing could inhibit NPC progression by blocking the activation of the HIF1α/DDIT4/mTOR signaling pathway by increasing H3K9me3, highlighting a promising therapeutic target for NPC.
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Affiliation(s)
- Jingyi Zhao
- Radiotherapy Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Bingyan Li
- Radiotherapy Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Yongxia Ren
- Radiotherapy Department, Huaihe Hospital of Henan University, Kaifeng, PR China
| | - Tiansong Liang
- Radiotherapy Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Juan Wang
- Radiotherapy Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Suna Zhai
- Radiotherapy Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Xiqian Zhang
- Radiotherapy Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Pengcheng Zhou
- Radiotherapy Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Xiangxian Zhang
- Radiotherapy Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Yuanyuan Pan
- Radiotherapy Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Fangfang Gao
- Radiotherapy Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Sulan Zhang
- Institute of Radiation Therapy and Tumor Critical Care of Zhengzhou University, Zhengzhou, PR China
| | - Liming Li
- Henan Key Laboratory of Molecular Radiotherapy, Zhengzhou, PR China
| | - Yongqiang Yang
- Radiotherapy Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Xiaoyu Deng
- Radiotherapy Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Xiaole Li
- Radiotherapy Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Linhui Chen
- Radiotherapy Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Daoke Yang
- Radiotherapy Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China.
| | - Yingjuan Zheng
- Radiotherapy Department, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China.
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Lee DH, Kim GW, Jeon YH, Yoo J, Lee SW, Kwon SH. Advances in histone demethylase KDM4 as cancer therapeutic targets. FASEB J 2020; 34:3461-3484. [PMID: 31961018 DOI: 10.1096/fj.201902584r] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 12/20/2019] [Accepted: 01/08/2020] [Indexed: 12/26/2022]
Abstract
The KDM4 subfamily H3K9 histone demethylases are epigenetic regulators that control chromatin structure and gene expression by demethylating histone H3K9, H3K36, and H1.4K26. The KDM4 subfamily mainly consists of four proteins (KDM4A-D), all harboring the Jumonji C domain (JmjC) but with differential substrate specificities. KDM4A-C proteins also possess the double PHD and Tudor domains, whereas KDM4D lacks these domains. KDM4 proteins are overexpressed or deregulated in multiple cancers, cardiovascular diseases, and mental retardation and are thus potential therapeutic targets. Despite extensive efforts, however, there are very few KDM4-selective inhibitors. Defining the exact physiological and oncogenic functions of KDM4 demethylase will provide the foundation for the discovery of novel potent inhibitors. In this review, we focus on recent studies highlighting the oncogenic functions of KDM4s and the interplay between KDM4-mediated epigenetic and metabolic pathways in cancer. We also review currently available KDM4 inhibitors and discuss their potential as therapeutic agents for cancer treatment.
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Affiliation(s)
- Dong Hoon Lee
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, Republic of Korea
| | - Go Woon Kim
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, Republic of Korea
| | - Yu Hyun Jeon
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, Republic of Korea
| | - Jung Yoo
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, Republic of Korea
| | - Sang Wu Lee
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, Republic of Korea
| | - So Hee Kwon
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, Republic of Korea.,Department of Integrated OMICS for Biomedical Science, Yonsei University, Seoul, Republic of Korea
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5
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Bartosch C, Lopes JM, Jerónimo C. Epigenetics in endometrial carcinogenesis - part 2: histone modifications, chromatin remodeling and noncoding RNAs. Epigenomics 2017; 9:873-892. [PMID: 28523964 DOI: 10.2217/epi-2016-0167] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Carcinogenesis is a multistep multifactorial process that involves the accumulation of genetic and epigenetic alterations. In the past two decades, there has been an exponential growth of knowledge establishing the importance of epigenetic changes in cancer. Our work focused on reviewing the main role of epigenetics in the pathogenesis of endometrial carcinoma, highlighting the reported results concerning each epigenetic mechanistic layer. In a previous review, we assessed DNA methylation alterations. The present review examines the contribution of histone modifications, chromatin remodeling and noncoding RNA alterations for endometrial carcinogenesis.
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Affiliation(s)
- Carla Bartosch
- Department of Pathology, Portuguese Oncology Institute of Porto (IPO-Porto), Porto, Portugal.,Cancer Biology & Epigenetics Group, Research Center (CI-IPOP), Portuguese Oncology Institute of Porto, Porto, Portugal.,Department of Pathology & Oncology, Medical Faculty, University of Porto, Porto, Portugal.,Porto Comprehensive Cancer Center (P.ccc), Porto, Portugal
| | - José Manuel Lopes
- Department of Pathology & Oncology, Medical Faculty, University of Porto, Porto, Portugal.,Department of Pathology, Centro Hospitalar São João (CHSJ), Porto, Portugal.,IPATIMUP (Institute of Molecular Pathology & Immunology, University of Porto); I3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Carmen Jerónimo
- Cancer Biology & Epigenetics Group, Research Center (CI-IPOP), Portuguese Oncology Institute of Porto, Porto, Portugal.,Porto Comprehensive Cancer Center (P.ccc), Porto, Portugal.,Department of Pathology & Molecular Immunology, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
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6
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Yang WS, Campbell M, Chang PC. SUMO modification of a heterochromatin histone demethylase JMJD2A enables viral gene transactivation and viral replication. PLoS Pathog 2017; 13:e1006216. [PMID: 28212444 PMCID: PMC5333917 DOI: 10.1371/journal.ppat.1006216] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 03/02/2017] [Accepted: 02/02/2017] [Indexed: 11/20/2022] Open
Abstract
Small ubiquitin-like modifier (SUMO) modification of chromatin has profound effects on transcription regulation. By using Kaposi’s sarcoma associated herpesvirus (KSHV) as a model, we recently demonstrated that epigenetic modification of viral chromatin by SUMO-2/3 is involved in regulating gene expression and viral reactivation. However, how this modification orchestrates transcription reprogramming through targeting histone modifying enzymes remains largely unknown. Here we show that JMJD2A, the first identified Jumonji C domain-containing histone demethylase, is the histone demethylase responsible for SUMO-2/3 enrichment on the KSHV genome during viral reactivation. Using in vitro and in vivo SUMOylation assays, we found that JMJD2A is SUMOylated on lysine 471 by KSHV K-bZIP, a viral SUMO-2/3-specific E3 ligase, in a SUMO-interacting motif (SIM)-dependent manner. SUMOylation is required for stabilizing chromatin association and gene transactivation by JMJD2A. These finding suggest that SUMO-2/3 modification plays an essential role in the epigenetic regulatory function of JMJD2A. Consistently, hierarchical clustering analysis of RNA-seq data showed that a SUMO-deficient mutant of JMJD2A was more closely related to JMJD2A knockdown than to wild-type. Our previous report demonstrated that JMJD2A coated and maintained the “ready to activate” status of the viral genome. Consistent with our previous report, a SUMO-deficient mutant of JMJD2A reduced viral gene expression and virion production. Importantly, JMJD2A has been implicated as an oncogene in various cancers by regulating proliferation. We therefore further analyzed the role of SUMO modification of JMJD2A in regulating cell proliferation. Interestingly, the SUMO-deficient mutant of JMJD2A failed to rescue the proliferation defect of JMJD2A knockdown cells. Emerging specific inhibitors of JMJD2A have been generated for evaluation in cancer studies. Our results revealed that SUMO conjugation mediates an epigenetic regulatory function of JMJD2A and suggests that inhibiting JMJD2A SUMOylation may be a novel avenue for anti-cancer therapy. Epigenetic dysregulation connects genotype to diseases. An understanding of epigenetic regulation holds promise for clinical use. The profound epigenetic changes that occur during the latent-to-lytic switch of the Kaposi’s sarcoma associated herpesvirus (KSHV) life cycle make it an attractive model system for studies of epigenetic regulation. Using this model, our recent work showed that the demethylase JMJD2A and SUMO-2/3 specific modifications of viral and host chromatin are associated with epigenetic regulation of transcription during reactivation. However, how SUMO modification and histone modifying enzymes interface to orchestrate epigenetic regulation remains largely unknown. Here, we demonstrate JMJD2A as an example of a histone demethylase that is SUMO-2/3 modified by the KSHV encoded SUMO E3 ligase, K-bZIP. SUMO modification of JMJD2A is essential for stabilizing its chromatin binding and exerting its transcriptional derepression activity. Emerging evidence has implicated JMJD2A as an oncogene involved in the progression of various human tumors. The essential role of SUMO in regulating the biological function of JMJD2A suggests that SUMOylation of JMJD2A may be one of the potential underlying mechanisms responsible for JMJD2A-mediated oncogenesis. In this regard, inhibition of JMJD2A SUMOylation could be a new strategy for anti-cancer therapy.
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Affiliation(s)
- Wan-Shan Yang
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan, R.O.C.
| | - Mel Campbell
- UC Davis Cancer Center, University of California, Davis, Davis, California, United States of America
| | - Pei-Ching Chang
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan, R.O.C.
- Center for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan, Republic of China
- * E-mail:
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Kafshdooz L, Kafshdooz T, Tabrizi AD, Mohaddes Ardabili SM, Akbarzadeh A, Gharesouran J, Ghojazadeh M, Farajnia S. Role of exon 7 PTEN Gene in Endometrial Carcinoma. Asian Pac J Cancer Prev 2016; 16:4521-4. [PMID: 26107197 DOI: 10.7314/apjcp.2015.16.11.4521] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Endometrial carcinoma is the most common malignant tumor of the female genital tract and the fourth most common cancer in Iranian women after breast, colorectal and lung cancers. Various genetic alterations appear to be early events in the pathogenesis of endometrial carcinoma and it seems that PTEN is the most commonly mutated gene in the endometrioid subtype. The aim of the present study was to investigate the correlation between mutations in exon 7 of PTEN gene and endometrial carcinoma. MATERIALS AND METHODS Seventy-five patients with endometrial carcinoma and 75 females whose underwent hysterectomy for non tumoral indication were selected for evaluation of PTEN mutations in exon 7 by PCR-SSCP and sequencing. Correlations between the frequency and type of mutation and the pathologic findings of the cancer (tumor subtype, stage and grade) were assessed. RESULTS All of the samples were obtained from Iranian patients. 60 % (45 cases) of the tumors were endometriod and 40% (30 cases) were of serous type. The grade distributions of the 75 cases according to the FIGO staging system were as follows: low grade, 20 cases; high grade 55 cases, low stage, 41 cases; high stage 34 cases. For exon 7 of the PTEN gene, the analysis showed that there were no mutations in our cases. CONCLUSIONS Our findings in the present study suggest that exon 7 of PTEN does not play any significant role in the development of endometrial carcinoma in Iranian cases.
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Affiliation(s)
- Leila Kafshdooz
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran E-mail : ,
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8
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Kafshdooz L, Tabrizi AD, Mohaddes SM, Kafshdooz T, Akbarzadeh A, Ghojazadeh M, Gharesouran J. The polymorphism of hypoxia-inducible factor-1a gene in endometrial cancer. Asian Pac J Cancer Prev 2015; 15:10393-6. [PMID: 25556481 DOI: 10.7314/apjcp.2014.15.23.10393] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Endometral carcinoma is the most common malignant tumor of the female genital tract and the fourth most common cancer in women after breast, colorectal and lung cancers Hypoxia-inducible factor -1 (HIF-1) is a key transcription factor that regulates cellular response to hypoxia HIF-1 plays important roles in the development and progression of cancer through activation of various genes that are involved in crucial aspects of cancer biology, including angiogenesis, energy metabolism, vasomotor function, erythropoiesis, and cell survival. In this study, we aimed to investigate the association between HIF-1 1772 C/T polymorphisms and endometrial cancer. MATERIALS AND METHODS 75 patients with endometrial carcinoma and 75 patients whose underwent hysterectomy for non tumoral indication selected for evaluation of HIF-1 1772 C/T polymorphisms by PCR-RFLP and sequencing. RESULTS For the 1772 C/T polymorphism, the analysis showed that the T allele and genotype TT were significantly associated with endometrial cancer risk. CONCLUSIONS Our results suggest that the C1772T polymorphism of the HIF-1a may be associated with endometrial cancers.
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Affiliation(s)
- Leila Kafshdooz
- Women's Reproductive Health Research Center, Department of Medical Genetics, Tabriz University of Medical Sciences, Tabriz, Iran E-mail : dastranjt@gmailcom,akbarzadehab@tbzmedacir
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9
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Tokmak A, Kokanali MK, Guzel AI, Kara A, Topcu HO, Cavkaytar S. Polycystic ovary syndrome and risk of endometrial cancer: a mini-review. Asian Pac J Cancer Prev 2015; 15:7011-4. [PMID: 25227783 DOI: 10.7314/apjcp.2014.15.17.7011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The polycystic ovary syndrome is the most common endocrinological disorder of reproductive age women with a prevalence of 5 to 8 %. The most common diagnostic criteria used for polycystic ovary syndrome are oligo- or an-ovulation, clinical and/ or biochemical signs of hyperandrogenism and polycystic ovaries. Hyperandrogenism results in increased estrogen levels and lack of cyclic progesterone due to anovulation and persistent stimulation of the endometrium may lead to endometrial hyperplasia or adenocarcinoma development. In this mini review, we aimed to evaluate the possible relationship between polycystic ovary syndrome and endometrial cancer.
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Affiliation(s)
- Aytekin Tokmak
- Obstetrics and Gynecology Department, Dr Zekai Tahir Burak Woman's Health Education and Research Hospital, Ankara, Turkey E-mail :
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10
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Hamamoto R, Saloura V, Nakamura Y. Critical roles of non-histone protein lysine methylation in human tumorigenesis. Nat Rev Cancer 2015; 15:110-24. [PMID: 25614009 DOI: 10.1038/nrc3884] [Citation(s) in RCA: 264] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Several protein lysine methyltransferases and demethylases have been identified to have critical roles in histone modification. A large body of evidence has indicated that their dysregulation is involved in the development and progression of various diseases, including cancer, and these enzymes are now considered to be potential therapeutic targets. Although most studies have focused on histone methylation, many reports have revealed that these enzymes also regulate the methylation dynamics of non-histone proteins such as p53, RB1 and STAT3 (signal transducer and activator of transcription 3), which have important roles in human tumorigenesis. In this Review, we summarize the molecular functions of protein lysine methylation and its involvement in human cancer, with a particular focus on lysine methylation of non-histone proteins.
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Affiliation(s)
- Ryuji Hamamoto
- Section of Hematology/Oncology, Department of Medicine, The University of Chicago, 5841 S. Maryland Avenue, MC 2115 Chicago, Illinois 60637, USA
| | - Vassiliki Saloura
- Section of Hematology/Oncology, Department of Medicine, The University of Chicago, 5841 S. Maryland Avenue, MC 2115 Chicago, Illinois 60637, USA
| | - Yusuke Nakamura
- Section of Hematology/Oncology, Department of Medicine, The University of Chicago, 5841 S. Maryland Avenue, MC 2115 Chicago, Illinois 60637, USA
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