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Venkata PP, Jayamohan S, He Y, Alejo S, Johnson JD, Palacios BE, Pratap UP, Chen Y, Liu Z, Zou Y, Lai Z, Suzuki T, Viswanadhapalli S, Weintraub ST, Palakurthi S, Valente PT, Tekmal RR, Kost ER, Vadlamudi RK, Sareddy GR. Pharmacological inhibition of KDM1A/LSD1 enhances estrogen receptor beta-mediated tumor suppression in ovarian cancer. Cancer Lett 2023; 575:216383. [PMID: 37714256 DOI: 10.1016/j.canlet.2023.216383] [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: 06/19/2023] [Revised: 08/19/2023] [Accepted: 09/07/2023] [Indexed: 09/17/2023]
Abstract
Ovarian cancer (OCa) is the most lethal gynecologic cancer. Emerging data indicates that estrogen receptor beta (ERβ) functions as a tumor suppressor in OCa. Lysine-specific histone demethylase 1A (KDM1A) is an epigenetic modifier that acts as a coregulator for steroid hormone receptors. However, it remain unknown if KDM1A interacts with ERβ and regulates its expression/functions in OCa. Analysis of TCGA data sets indicated KDM1A and ERβ expression showed an inverse relationship in OCa. Knockout (KO), knockdown (KD), or inhibition of KDM1A increased ERβ isoform 1 expression in established and patient-derived OCa cells. Further, KDM1A interacts with and functions as a corepressor of ERβ, and its inhibition enhances ERβ target gene expression via alterations of histone methylation marks at their promoters. Importantly, KDM1A-KO or -KD enhanced the efficacy of ERβ agonist LY500307, and the combination of KDM1A inhibitor (KDM1Ai) NCD38 with ERβ agonist synergistically reduced the cell viability, colony formation, and invasion of OCa cells. RNA-seq and DIA mass spectrometry analyses showed that KDM1A-KO resulted in enhanced ERβ signaling and that genes altered by KDM1A-KO and ERβ agonist were related to apoptosis, cell cycle, and EMT. Moreover, combination treatment significantly reduced the tumor growth in OCa orthotopic, syngeneic, and patient-derived xenograft models and proliferation in patient-derived explant models. Our results demonstrate that KDM1A regulates ERβ expression/functions, and its inhibition improves ERβ mediated tumor suppression. Overall, our findings suggest that KDM1Ai and ERβ agonist combination therapy is a promising strategy for OCa.
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Affiliation(s)
| | - Sridharan Jayamohan
- Department of Obstetrics and Gynecology, UT Health San Antonio, San Antonio, TX, 78229, USA
| | - Yi He
- Department of Obstetrics and Gynecology, UT Health San Antonio, San Antonio, TX, 78229, USA; Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China
| | - Salvador Alejo
- Department of Obstetrics and Gynecology, UT Health San Antonio, San Antonio, TX, 78229, USA
| | - Jessica D Johnson
- Department of Obstetrics and Gynecology, UT Health San Antonio, San Antonio, TX, 78229, USA
| | - Bridgitte E Palacios
- Department of Obstetrics and Gynecology, UT Health San Antonio, San Antonio, TX, 78229, USA
| | - Uday P Pratap
- Department of Obstetrics and Gynecology, UT Health San Antonio, San Antonio, TX, 78229, USA
| | - Yihong Chen
- Department of Obstetrics and Gynecology, UT Health San Antonio, San Antonio, TX, 78229, USA; Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China
| | - Zexuan Liu
- Department of Obstetrics and Gynecology, UT Health San Antonio, San Antonio, TX, 78229, USA; Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China
| | - Yi Zou
- Greehey Children's Cancer Research Institute, UT Health San Antonio, San Antonio, TX, 78229, USA; Department of Molecular Medicine, UT Health San Antonio, San Antonio, TX, 78229, USA
| | - Zhao Lai
- Greehey Children's Cancer Research Institute, UT Health San Antonio, San Antonio, TX, 78229, USA; Department of Molecular Medicine, UT Health San Antonio, San Antonio, TX, 78229, USA
| | - Takayoshi Suzuki
- The Institute of Scientific and Industrial Research, Osaka University, Japan
| | - Suryavathi Viswanadhapalli
- Department of Obstetrics and Gynecology, UT Health San Antonio, San Antonio, TX, 78229, USA; Mays Cancer Center, UT Health San Antonio, San Antonio, TX, 78229, USA
| | - Susan T Weintraub
- Department of Biochemistry and Structural Biology, UT Health San Antonio, San Antonio, TX, 78229, USA
| | - Srinath Palakurthi
- Department of Pharmaceutical Sciences, Texas A&M University, Kingsville, TX 78363, USA
| | - Philip T Valente
- Department of Obstetrics and Gynecology, UT Health San Antonio, San Antonio, TX, 78229, USA; Mays Cancer Center, UT Health San Antonio, San Antonio, TX, 78229, USA
| | - Rajeshwar R Tekmal
- Department of Obstetrics and Gynecology, UT Health San Antonio, San Antonio, TX, 78229, USA; Mays Cancer Center, UT Health San Antonio, San Antonio, TX, 78229, USA
| | - Edward R Kost
- Department of Obstetrics and Gynecology, UT Health San Antonio, San Antonio, TX, 78229, USA
| | - Ratna K Vadlamudi
- Department of Obstetrics and Gynecology, UT Health San Antonio, San Antonio, TX, 78229, USA; Audie L. Murphy South Texas Veterans Health Care System, San Antonio, TX, 78229, USA; Mays Cancer Center, UT Health San Antonio, San Antonio, TX, 78229, USA
| | - Gangadhara R Sareddy
- Department of Obstetrics and Gynecology, UT Health San Antonio, San Antonio, TX, 78229, USA; Mays Cancer Center, UT Health San Antonio, San Antonio, TX, 78229, USA.
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Carboplatin and decitabine loaded lipid-coated albumin nanoparticles for an efficient treatment of platinum-resistant ovarian cancer. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Singh A, Gupta S, Sachan M. Evaluation of the Diagnostic Potential of Candidate Hypermethylated Genes in Epithelial Ovarian Cancer in North Indian Population. Front Mol Biosci 2021; 8:719056. [PMID: 34778370 PMCID: PMC8581490 DOI: 10.3389/fmolb.2021.719056] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 10/12/2021] [Indexed: 01/22/2023] Open
Abstract
Most ovarian cancers, despite improvement in management of cancer, are still diagnosed at an advanced stage. Early detection plays an essential role in reducing ovarian cancer mortality and, therefore, is critically needed. Liquid biopsies-based approaches hold significant promise for cancer detection. The present study investigates a panel of epigenetic biomarkers for the detection of epithelial ovarian cancer. A qPCR assay has been developed based on the assessment of DNA methylation markers in circulating cell-free DNA as a minimally invasive tool. Herein, the promoter methylation of seven ovarian cancer-specific genes (RASSF1A, DAPK1, SOX1, HOXA9, HIC1, SPARC, and SFRP1) was analyzed quantitatively in 120 tissue samples by MethyLight assay. The best-performing genes were further evaluated for their methylation status in 70 matched serum cell-free DNA of cancerous and non-cancerous samples. Additionally, DNA methylation patterns of these best-performing genes were validated by clonal bisulfite sequencing. The ROC (Receiver-operator characteristic) curves were constructed to evaluate the diagnostic performances of both individual and combined gene panels. The seven candidate genes displayed a methylation frequency of 61.0-88.0% in tissue samples. The promoter methylation frequencies for all the seven candidate genes were significantly higher in cancer samples than in normal matched controls. In tissue samples, the multiplex MethyLight assay for HOXA9, HIC1, and SOX1 were the best performing gene panels in terms of sensitivity and specificity. The three best-performing genes exhibited individual frequencies of 53.0-71.0% in serum CFDNA, and the multiplex assay for these genes were identified to discriminate serum from cancer patients and healthy individuals (area under the curve: HOXA9+HIC1 = 0.95, HIC1+SOX1 = 0.93 and HOXA9+SOX1 = 0.85). The results of MethyLight showed high concordance with clonal bisulfite sequencing results. Individual genes and combined panel exhibited better discriminatory efficiencies to identify ovarian cancer at various stages of disease when analyzed in tissue and serum cell-free DNA. We report a qPCR-based non-invasive epigenetic biomarker assay with high sensitivity and specificity for OC screening. Our findings also reveal the potential utility of methylation-based detection of circulating cell-free tumor DNA in the clinical management of ovarian cancer.
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Affiliation(s)
- Alka Singh
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Allahabad, India
| | - Sameer Gupta
- Department of Surgical Oncology, King George Medical University, Lucknow, India
| | - Manisha Sachan
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Allahabad, India
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Ramarao-Milne P, Kondrashova O, Barry S, Hooper JD, Lee JS, Waddell N. Histone Modifying Enzymes in Gynaecological Cancers. Cancers (Basel) 2021; 13:cancers13040816. [PMID: 33669182 PMCID: PMC7919659 DOI: 10.3390/cancers13040816] [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: 01/19/2021] [Revised: 02/10/2021] [Accepted: 02/11/2021] [Indexed: 12/16/2022] Open
Abstract
Simple Summary Epigenetics is a process that allows genetic control, without the involvement of sequence changes to DNA or genes. In cancer, epigenetics is a key event in tumour development that can alter the expression of cancer driver genes and result in genomic instability. Due to the critical role of epigenetics in malignant transformation, therapies that target these processes have been developed to treat cancer. Here, we provide a summary of the epigenetic changes that have been described in a variety of gynaecological cancers. We then highlight how these changes are being targeted in preclinical models and clinical trials for gynaecological cancers. Abstract Genetic and epigenetic factors contribute to the development of cancer. Epigenetic dysregulation is common in gynaecological cancers and includes altered methylation at CpG islands in gene promoter regions, global demethylation that leads to genome instability and histone modifications. Histones are a major determinant of chromosomal conformation and stability, and unlike DNA methylation, which is generally associated with gene silencing, are amenable to post-translational modifications that induce facultative chromatin regions, or condensed transcriptionally silent regions that decondense resulting in global alteration of gene expression. In comparison, other components, crucial to the manipulation of chromatin dynamics, such as histone modifying enzymes, are not as well-studied. Inhibitors targeting DNA modifying enzymes, particularly histone modifying enzymes represent a potential cancer treatment. Due to the ability of epigenetic therapies to target multiple pathways simultaneously, tumours with complex mutational landscapes affected by multiple driver mutations may be most amenable to this type of inhibitor. Interrogation of the actionable landscape of different gynaecological cancer types has revealed that some patients have biomarkers which indicate potential sensitivity to epigenetic inhibitors. In this review we describe the role of epigenetics in gynaecological cancers and highlight how it may exploited for treatment.
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Affiliation(s)
- Priya Ramarao-Milne
- Medical Genomics Group, QIMR Berghofer Medical Research Institute, Brisbane, QLD 4006, Australia; (P.R.-M.); (O.K.); (N.W.)
- Faculty of Medicine, The University of Queensland, Brisbane, QLD 4006, Australia
| | - Olga Kondrashova
- Medical Genomics Group, QIMR Berghofer Medical Research Institute, Brisbane, QLD 4006, Australia; (P.R.-M.); (O.K.); (N.W.)
| | - Sinead Barry
- Department of Gynaecological Oncology, Mater Hospital Brisbane, Brisbane, QLD 4101, Australia;
- Mater Research Institute, The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia;
| | - John D. Hooper
- Mater Research Institute, The University of Queensland, Translational Research Institute, Woolloongabba, QLD 4102, Australia;
| | - Jason S. Lee
- Faculty of Medicine, The University of Queensland, Brisbane, QLD 4006, Australia
- Epigenetics and Disease Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, QLD 4006, Australia
- School of Biomedical Sciences, Queensland University of Technology, Brisbane, QLD 4000, Australia
- Correspondence: ; Tel.: +61-7-38453951
| | - Nicola Waddell
- Medical Genomics Group, QIMR Berghofer Medical Research Institute, Brisbane, QLD 4006, Australia; (P.R.-M.); (O.K.); (N.W.)
- Faculty of Medicine, The University of Queensland, Brisbane, QLD 4006, Australia
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Interactions between the MicroRNAs and Microbiota in Cancer Development: Roles and Therapeutic Opportunities. Cancers (Basel) 2020; 12:cancers12040805. [PMID: 32230762 PMCID: PMC7225936 DOI: 10.3390/cancers12040805] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 02/06/2023] Open
Abstract
The human microbiota is made up of the fungi, bacteria, protozoa and viruses cohabiting within the human body. An altered microbiota can provoke diseases such as cancer. The mechanisms by which a modified microbiota can intervene in the onset and progression of neoplastic diseases are manifold. For instance, these include the effects on the immune system and the onset of obesity. A different mechanism seems to be constituted by the continuous and bidirectional relationships existing between microbiota and miRNAs. MiRNAs emerged as a novel group of small endogenous non-coding RNAs from that control gene expression. Several works seem to confirm the presence of a close connection between microbiota and miRNAs. Although the main literature data concern the correlations between microbiota, miRNAs and colon cancer, several researches have revealed the presence of connections with other types of tumour, including the ovarian tumour, cervical carcinoma, hepatic carcinoma, neoplastic pathologies of the central nervous system and the possible implication of the microbiota-miRNAs system on the response to the treatment of neoplastic pathologies. In this review, we summarise the physiological and pathological functions of the microbiota on cancer onset by governing miRNA production. A better knowledge of the bidirectional relationships existing between microbiota and miRNAs could provide new markers for the diagnosis, staging and monitoring of cancer and seems to be a promising approach for antagomir-guided approaches as therapeutic agents.
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Epigenetic role of thymoquinone: impact on cellular mechanism and cancer therapeutics. Drug Discov Today 2019; 24:2315-2322. [PMID: 31541714 DOI: 10.1016/j.drudis.2019.09.007] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/06/2019] [Accepted: 09/12/2019] [Indexed: 12/17/2022]
Abstract
Thymoquinone is a natural product known for its anticancer activity. Preclinical studies indicated numerous mechanisms of action by which thymoquinone exerts its effects on cancer cells. Recent evidence has indicated that thymoquinone can modulate epigenetic machinery, like modifying histone acetylation and deacetylation, DNA methylation and demethylation, which are among the major epigenetic changes that can contribute to carcinogenesis. Moreover, thymoquinone can alter the genetic expression of various noncoding RNAs, such as miRNA and lncRNA, which are the key parts of cellular epigenetics. This review focuses on cellular epigenetic systems, epigenetic changes responsible for cancer and the counteraction of thymoquinone to target epigenetic challenges, which might be among the mechanisms of the thymoquinone effect in cancer cells.
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Herreros-Villanueva M, Chen CC, Tsai EM, Er TK. Endometriosis-associated ovarian cancer: What have we learned so far? Clin Chim Acta 2019; 493:63-72. [PMID: 30776361 DOI: 10.1016/j.cca.2019.02.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 02/13/2019] [Accepted: 02/14/2019] [Indexed: 02/07/2023]
Abstract
Endometriosis is defined as the presence of ectopic endometrial tissue outside of the uterine cavity, most commonly in the ovaries and peritoneum. It is a complex disease that is influenced by multiple factors. It is also a common gynecological disorder and affects approximately 10-15% of all women of reproductive age. Recent molecular and pathological studies indicate that endometriosis may serve as a precursor of ovarian cancer (endometriosis-associated ovarian cancer, EAOC), particularly endometrioid and clear cell ovarian cancers. Although histological and epidemiological studies have demonstrated that endometriosis has a malignant potential, the molecular mechanism that underlies the malignant transformation of endometriosis is still controversial, and the precise mechanism of carcinogenesis must be fully elucidated. Currently, the development and improvement of a new sequencing technology, next-generation sequencing (NGS), has been increasingly relevant in cancer genomics research. Recently, NGS has also been utilized in clinical oncology to advance the personalized treatment of cancer. In addition, the sensitivity, speed, and cost make NGS a highly attractive platform compared to other sequencing modalities. For this reason, NGS may lead to the identification of driver mutations and underlying pathways associated with EAOC. Here, we present an overview of the molecular pathways that have led to the current opinions on the relationship between endometriosis and ovarian cancer.
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Affiliation(s)
- M Herreros-Villanueva
- Department of Gastroenterology, Hospital Donostia/Instituto Biodonostia, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Universidad del País Vasco UPV/EHU, San Sebastián, Spain
| | - Chih-Chieh Chen
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung, Taiwan; Rapid Screening Research Center for Toxicology and Biomedicine, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Eing-Mei Tsai
- Department of Obstetrics and Gynecology, Kaohsiung Medical University Hospital, Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tze-Kiong Er
- Division of Laboratory Medicine, Asia University Hospital, Asia University, Taichung, Taiwan; Deparment of Food Nutrition and Health Biotechnology, Asia University, Taichung, Taiwan; Deparment of Biotechnology, Asia University, Taichung, Taiwan; Deparment of Nursing, Asia University, Taichung, Taiwan.
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8
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Liu D, Zhang XX, Li MC, Cao CH, Wan DY, Xi BX, Tan JH, Wang J, Yang ZY, Feng XX, Ye F, Chen G, Wu P, Xi L, Wang H, Zhou JF, Feng ZH, Ma D, Gao QL. C/EBPβ enhances platinum resistance of ovarian cancer cells by reprogramming H3K79 methylation. Nat Commun 2018; 9:1739. [PMID: 29712898 PMCID: PMC5928165 DOI: 10.1038/s41467-018-03590-5] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 02/27/2018] [Indexed: 01/27/2023] Open
Abstract
Chemoresistance is a major unmet clinical obstacle in ovarian cancer treatment. Epigenetics plays a pivotal role in regulating the malignant phenotype, and has the potential in developing therapeutically valuable targets that improve the dismal outcome of this disease. Here we show that a series of transcription factors, including C/EBPβ, GCM1, and GATA1, could act as potential modulators of histone methylation in tumor cells. Of note, C/EBPβ, an independent prognostic factor for patients with ovarian cancer, mediates an important mechanism through which epigenetic enzyme modifies groups of functionally related genes in a context-dependent manner. By recruiting the methyltransferase DOT1L, C/EBPβ can maintain an open chromatin state by H3K79 methylation of multiple drug-resistance genes, thereby augmenting the chemoresistance of tumor cells. Therefore, we propose a new path against cancer epigenetics in which identifying and targeting the key regulators of epigenetics such as C/EBPβ may provide more precise therapeutic options in ovarian cancer. In ovarian cancer, the mechanism of chemoresistance is a key question. Here, the authors demonstrate that C/EBPβ and DOT1L together increase methylation of H3K79, which upregulates expression of oncogenic genes and drives poor platinum response and poor survival in ovarian cancer.
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Affiliation(s)
- Dan Liu
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Xiao-Xue Zhang
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Meng-Chen Li
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Can-Hui Cao
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Dong-Yi Wan
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Bi-Xin Xi
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Jia-Hong Tan
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Ji Wang
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Zong-Yuan Yang
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Xin-Xia Feng
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Fei Ye
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Gang Chen
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Peng Wu
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Ling Xi
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Hui Wang
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Jian-Feng Zhou
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Zuo-Hua Feng
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Ding Ma
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Qing-Lei Gao
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China.
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Endometriosis Malignant Transformation: Epigenetics as a Probable Mechanism in Ovarian Tumorigenesis. Int J Genomics 2018; 2018:1465348. [PMID: 29780815 PMCID: PMC5892233 DOI: 10.1155/2018/1465348] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 03/01/2018] [Indexed: 12/12/2022] Open
Abstract
Endometriosis, defined as the presence of ectopic endometrial glands and stroma outside the uterine cavity, is a chronic, hormone-dependent gynecologic disease affecting millions of women across the world, with symptoms including chronic pelvic pain, dysmenorrhea, dyspareunia, dysuria, and subfertility. In addition, there is well-established evidence that, although endometriosis is considered benign, it is associated with an increased risk of malignant transformation, with the involvement of various mechanisms of development. More and more evidence reveals an important contribution of epigenetic modification not only in endometriosis but also in mechanisms of endometriosis malignant transformation, including DNA methylation and demethylation, histone modifications, and miRNA aberrant expressions. In this present review, we mainly summarize the research progress about the current knowledge regarding the epigenetic modifications of the relations between endometriosis malignant transformation and ovarian cancer in an effort to identify some risk factors probably associated with ectopic endometrium transformation.
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Helland Ø, Popa M, Bischof K, Gjertsen BT, McCormack E, Bjørge L. The HDACi Panobinostat Shows Growth Inhibition Both In Vitro and in a Bioluminescent Orthotopic Surgical Xenograft Model of Ovarian Cancer. PLoS One 2016; 11:e0158208. [PMID: 27352023 PMCID: PMC4924861 DOI: 10.1371/journal.pone.0158208] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 06/13/2016] [Indexed: 12/28/2022] Open
Abstract
Background In most epithelial ovarian carcinomas (EOC), epigenetic changes are evident, and overexpression of histone deacetylases (HDACs) represents an important manifestation. In this study, we wanted to evaluate the effects of the novel HDAC inhibitor (HDACi) panobinostat, both alone and in combination with carboplatin, on ovarian cancer cell lines and in a murine bioluminescent orthotopic surgical xenograft model for EOC. Methods The effects of panobinostat, both alone and in combination with carboplatin, on proliferation and apoptosis in ovarian cancer cell lines, were evaluated using colony and WST-1 assays, Hoechst staining and flow cytometry analysis. In addition, mechanisms were characterised by western blotting and phosphoflow analysis. Immuno-deficient mice were engrafted orthotopically with SKOV-3luc+ cells and serial bioluminescence imaging monitored the effects of treatment with panobinostat and/or carboplatin and/or surgery. Survival parameters were also measured. Results Panobinostat treatment reduced cell growth and diminished cell viability, as shown by the induced cell cycle arrest and apoptosis in vitro. We observed increased levels of cleaved PARP and caspase-3, downregulation of cdc2 protein kinase, acetylation of H2B and higher pH2AX expression. The combined administration of carboplatin and panobinostat synergistically increased the anti-tumour effects compared to panobinostat or carboplatin treatment alone. In our novel ovarian cancer model, the mice showed significantly higher rates of survival when treated with panobinostat, carboplatin or a combination of both, compared to the controls. Panobinostat was as efficient as carboplatin regarding prolongation of survival. No significant additional effect on survival was observed when surgery was combined with carboplatin/panobinostat treatment. Conclusions Panobinostat demonstrates effective in vitro growth inhibition in ovarian cancer cells. The efficacy of panobinostat and carboplatin was equal in the orthotopic EOC model used. We conclude that panobinostat is a promising therapeutic alternative that needs to be further assessed for the treatment of EOC.
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Affiliation(s)
- Øystein Helland
- Department of Obstetrics and Gynecology, Haukeland University Hospital, Jonas Liesvei 72, 5058 Bergen, Norway
- Department of Clinical Science, University of Bergen, PB 7804, 5020 Bergen, Norway
- * E-mail:
| | - Mihaela Popa
- KinN Therapeutics, Laboratoriebygget, Haukeland University Hospital, 5021 Bergen, Norway
| | - Katharina Bischof
- Department of Obstetrics and Gynecology, Haukeland University Hospital, Jonas Liesvei 72, 5058 Bergen, Norway
- Department of Clinical Science, University of Bergen, PB 7804, 5020 Bergen, Norway
| | - Bjørn Tore Gjertsen
- Department of Clinical Science, University of Bergen, PB 7804, 5020 Bergen, Norway
- Department of Internal Medicine, Haukeland University Hospital, Jonas Lies vei 65, 5021 Bergen, Norway
- Centre for Cancer Biomarkers (CCBIO), University of Bergen, 5020 Bergen, Norway
| | - Emmet McCormack
- Department of Clinical Science, University of Bergen, PB 7804, 5020 Bergen, Norway
- Department of Internal Medicine, Haukeland University Hospital, Jonas Lies vei 65, 5021 Bergen, Norway
| | - Line Bjørge
- Department of Obstetrics and Gynecology, Haukeland University Hospital, Jonas Liesvei 72, 5058 Bergen, Norway
- Department of Clinical Science, University of Bergen, PB 7804, 5020 Bergen, Norway
- Centre for Cancer Biomarkers (CCBIO), University of Bergen, 5020 Bergen, Norway
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Swellam M, El-Khazragy N. Clinical impact of circulating microRNAs as blood-based marker in childhood acute lymphoblastic leukemia. Tumour Biol 2016; 37:10571-6. [PMID: 26857279 DOI: 10.1007/s13277-016-4948-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 01/29/2016] [Indexed: 01/03/2023] Open
Abstract
Aberrant microRNA (miRNA) expression participates in childhood acute lymphoblastic leukemia (ALL). This study aimed to investigate the expression of miRNA-100, miRNA-196a, and miRNA-146a among childhood ALL and study their correlation with other hematological parameters and different phenotypes. Peripheral blood mononuclear cells (PMNCs) were obtained from 85 childhood ALL and 25 healthy children for the detection of miRNA expression using quantitative real-time PCR. Significant higher median levels were reported for ALL compared to control children. The diagnostic efficacy for miRNA-146a was superior as both sensitivity and specificity were absolute. A significant correlation was observed between higher expression of miRNA-100 and lower platelet and lymphocyte counts; high expression of miRNA-146a showed significant correlation with low total leukocyte count (TLC) and lymphocyte counts. Significant relation was reported between studied miRNAs and different phenotyping. miRNA-100, miRNA-196a, and miRNA-146a have significant role in childhood ALL leukemogenesis, and they may be useful as biological diagnostic molecular markers.
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Affiliation(s)
- Menha Swellam
- Department of Biochemistry, Genetic Engineering and Biotechnology Research Division, National Research Centre, Giza, 12622, Dokki, Egypt.
| | - Nashwa El-Khazragy
- Department of Clinical Pathology, Oncology Diagnostic Unit, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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Nguyen HT, Jia W, Beedle AM, Kennedy EJ, Murph MM. Lysophosphatidic Acid Mediates Activating Transcription Factor 3 Expression Which Is a Target for Post-Transcriptional Silencing by miR-30c-2-3p. PLoS One 2015; 10:e0139489. [PMID: 26418018 PMCID: PMC4587950 DOI: 10.1371/journal.pone.0139489] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 09/14/2015] [Indexed: 11/18/2022] Open
Abstract
Although microRNAs (miRNAs) are small, non-protein-coding entities, they have important roles in post-transcriptional regulation of most of the human genome. These small entities generate fine-tuning adjustments in the expression of mRNA, which can mildly or massively affect the abundance of proteins. Previously, we found that the expression of miR-30c-2-3p is induced by lysophosphatidic acid and has an important role in the regulation of cell proliferation in ovarian cancer cells. The goal here is to confirm that ATF3 mRNA is a target of miR-30c-2-3p silencing, thereby further establishing the functional role of miR-30c-2-3p. Using a combination of bioinformatics, qRT-PCR, immunoblotting and luciferase assays, we uncovered a regulatory pathway between miR-30c-2-3p and the expression of the transcription factor, ATF3. Lysophosphatidic acids triggers the expression of both miR-30c-2-3p and ATF3, which peak at 1 h and are absent 8 h post stimulation in SKOV-3 and OVCAR-3 serous ovarian cancer cells. The 3´-untranslated region (3´-UTR) of ATF3 was a predicted, putative target for miR-30c-2-3p, which we confirmed as a bona-fide interaction using a luciferase reporter assay. Specific mutations introduced into the predicted site of interaction between miR-30c-2-3p and the 3´-UTR of ATF3 alleviated the suppression of the luciferase signal. Furthermore, the presence of anti-miR-30c-2-3p enhanced ATF3 mRNA and protein after lysophosphatidic acid stimulation. Thus, the data suggest that after the expression of ATF3 and miR-30c-2-3p are elicited by lysophosphatidic acid, subsequently miR-30c-2-3p negatively regulates the expression of ATF3 through post-transcriptional silencing, which prevents further ATF3-related outcomes as a consequence of lysophosphatidic acid signaling.
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Affiliation(s)
- Ha T. Nguyen
- Department of Pharmaceutical and Biomedical Sciences, The University of Georgia, College of Pharmacy, 240 W. Green Street, Athens, Georgia 30602, United States of America
| | - Wei Jia
- Department of Pharmaceutical and Biomedical Sciences, The University of Georgia, College of Pharmacy, 240 W. Green Street, Athens, Georgia 30602, United States of America
| | - Aaron M. Beedle
- Department of Pharmaceutical and Biomedical Sciences, The University of Georgia, College of Pharmacy, 240 W. Green Street, Athens, Georgia 30602, United States of America
| | - Eileen J. Kennedy
- Department of Pharmaceutical and Biomedical Sciences, The University of Georgia, College of Pharmacy, 240 W. Green Street, Athens, Georgia 30602, United States of America
| | - Mandi M. Murph
- Department of Pharmaceutical and Biomedical Sciences, The University of Georgia, College of Pharmacy, 240 W. Green Street, Athens, Georgia 30602, United States of America
- * E-mail:
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