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Milosevic I, Todorovic N, Filipovic A, Simic J, Markovic M, Stevanovic O, Malinic J, Katanic N, Mitrovic N, Nikolic N. HCV and HCC Tango-Deciphering the Intricate Dance of Disease: A Review Article. Int J Mol Sci 2023; 24:16048. [PMID: 38003240 PMCID: PMC10671156 DOI: 10.3390/ijms242216048] [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: 09/13/2023] [Revised: 10/12/2023] [Accepted: 10/25/2023] [Indexed: 11/26/2023] Open
Abstract
Hepatitis C virus (HCV) is a major cause of hepatocellular carcinoma (HCC) accounting for around one-third of all HCC cases. Prolonged inflammation in chronic hepatitis C (CHC), maintained through a variety of pro- and anti-inflammatory mediators, is one of the aspects of carcinogenesis, followed by mitochondrial dysfunction and oxidative stress. Immune response dysfunction including the innate and adaptive immunity also plays a role in the development, as well as in the recurrence of HCC after treatment. Some of the tumor suppressor genes inhibited by the HCV proteins are p53, p73, and retinoblastoma 1. Mutations in the telomerase reverse transcriptase promoter and the oncogene catenin beta 1 are two more important carcinogenic signaling pathways in HCC associated with HCV. Furthermore, in HCV-related HCC, numerous tumor suppressor and seven oncogenic genes are dysregulated by epigenetic changes. Epigenetic regulation of gene expression is considered as a lasting "epigenetic memory", suggesting that HCV-induced changes persist and are associated with liver carcinogenesis even after cure. Epigenetic changes and immune response dysfunction are recognized targets for potential therapy of HCC.
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Affiliation(s)
- Ivana Milosevic
- Faculty of Medicine, Department for Infectious Diseases, University of Belgrade, 11000 Belgrade, Serbia; (I.M.); (M.M.); (O.S.); (J.M.); (N.M.)
- University Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobodjenja 16, 11000 Belgrade, Serbia; (N.T.); (A.F.); (J.S.); (N.K.)
| | - Nevena Todorovic
- University Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobodjenja 16, 11000 Belgrade, Serbia; (N.T.); (A.F.); (J.S.); (N.K.)
| | - Ana Filipovic
- University Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobodjenja 16, 11000 Belgrade, Serbia; (N.T.); (A.F.); (J.S.); (N.K.)
| | - Jelena Simic
- University Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobodjenja 16, 11000 Belgrade, Serbia; (N.T.); (A.F.); (J.S.); (N.K.)
| | - Marko Markovic
- Faculty of Medicine, Department for Infectious Diseases, University of Belgrade, 11000 Belgrade, Serbia; (I.M.); (M.M.); (O.S.); (J.M.); (N.M.)
- University Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobodjenja 16, 11000 Belgrade, Serbia; (N.T.); (A.F.); (J.S.); (N.K.)
| | - Olja Stevanovic
- Faculty of Medicine, Department for Infectious Diseases, University of Belgrade, 11000 Belgrade, Serbia; (I.M.); (M.M.); (O.S.); (J.M.); (N.M.)
- University Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobodjenja 16, 11000 Belgrade, Serbia; (N.T.); (A.F.); (J.S.); (N.K.)
| | - Jovan Malinic
- Faculty of Medicine, Department for Infectious Diseases, University of Belgrade, 11000 Belgrade, Serbia; (I.M.); (M.M.); (O.S.); (J.M.); (N.M.)
- University Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobodjenja 16, 11000 Belgrade, Serbia; (N.T.); (A.F.); (J.S.); (N.K.)
| | - Natasa Katanic
- University Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobodjenja 16, 11000 Belgrade, Serbia; (N.T.); (A.F.); (J.S.); (N.K.)
- Faculty of Medicine, University of Pristina Situated in Kosovska Mitrovica, 28000 Kosovska Mitrovica, Serbia
| | - Nikola Mitrovic
- Faculty of Medicine, Department for Infectious Diseases, University of Belgrade, 11000 Belgrade, Serbia; (I.M.); (M.M.); (O.S.); (J.M.); (N.M.)
- University Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobodjenja 16, 11000 Belgrade, Serbia; (N.T.); (A.F.); (J.S.); (N.K.)
| | - Natasa Nikolic
- Faculty of Medicine, Department for Infectious Diseases, University of Belgrade, 11000 Belgrade, Serbia; (I.M.); (M.M.); (O.S.); (J.M.); (N.M.)
- University Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobodjenja 16, 11000 Belgrade, Serbia; (N.T.); (A.F.); (J.S.); (N.K.)
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Zhang C, Zhang W, Yuan Z, Yang W, Hu X, Duan S, Wei Q. Contribution of DNA methylation to the risk of hepatitis C virus-associated hepatocellular carcinoma: A meta-analysis. Pathol Res Pract 2022; 238:154136. [PMID: 36155324 DOI: 10.1016/j.prp.2022.154136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 09/07/2022] [Accepted: 09/16/2022] [Indexed: 10/14/2022]
Abstract
DNA methylation is a crucial epigenetic modification in hepatocellular carcinoma (HCC), and hepatitis C virus (HCV) can induce hepatocarcinogenesis. Nevertheless, the interaction mechanism between DNA methylation and HCV infection in HCC is still ambiguous. In this study, we performed a comprehensive meta-analysis to assess the contribution of DNA methylation in HCV-associated HCC. After four steps of literature screening, we finally obtained 33 qualified case-control studies for this meta-analysis. These studies consisted of 587 HCV-positive cancer tissues and 326 HCV-negative cancer tissues. Our results revealed that four genes (p16, GSTP1, APC, and RUNX3) were more hypermethylated in the HCV-positive liver cancer tissues than in the HCV-negative liver cancer tissues. In addition, the p16 gene was more hypermethylated in the HCV-positive paracancerous tissues than in the HCV-negative paracancerous tissues. Subgroup meta-analysis by geographical populations showed that p16 methylation was significantly higher in HCV-positive cancerous tissues from Japanese and Chinese. Besides, p16 methylation was significantly higher among patients (> 60 years) but not among the others (≤ 60 years). However, there was no obvious association between DNA methylation and other clinicopathological characteristics, including gender, tumor size, differentiation, and clinical stage. Our study suggested that DNA methylation could become potential biomarkers for HCV-associated HCC. DNA methylation contributed to the risk of HCV-associated HCC.
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Affiliation(s)
- Cheng Zhang
- Department of Radiation Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Department of Medical Oncology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - Wangjian Zhang
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zhijun Yuan
- Department of Radiation Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Wenjun Yang
- Department of Pathology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - Xiangrong Hu
- Department of Pathology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Shiwei Duan
- School of Medicine, Zhejiang University City College, Hangzhou, Zhejiang, China.
| | - Qichun Wei
- Department of Radiation Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
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3
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Kitsou K, Iliopoulou M, Spoulou V, Lagiou P, Magiorkinis G. Viral Causality of Human Cancer and Potential Roles of Human Endogenous Retroviruses in the Multi-Omics Era: An Evolutionary Epidemiology Review. Front Oncol 2021; 11:687631. [PMID: 34778024 PMCID: PMC8586426 DOI: 10.3389/fonc.2021.687631] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 10/12/2021] [Indexed: 12/20/2022] Open
Abstract
Being responsible for almost 12% of cancers worldwide, viruses are among the oldest known and most prevalent oncogenic agents. The quality of the evidence for the in vivo tumorigenic potential of microorganisms varies, thus accordingly, viruses were classified in 4 evidence-based categories by the International Agency for Research on Cancer in 2009. Since then, our understanding of the role of viruses in cancer has significantly improved, firstly due to the emergence of high throughput sequencing technologies that allowed the “brute-force” recovery of unknown viral genomes. At the same time, multi-omics approaches unravelled novel virus-host interactions in stem-cell biology. We now know that viral elements, either exogenous or endogenous, have multiple sometimes conflicting roles in human pathophysiology and the development of cancer. Here we integrate emerging evidence on viral causality in human cancer from basic mechanisms to clinical studies. We analyze viral tumorigenesis under the scope of deep-in-time human-virus evolutionary relationships and critically comment on the evidence through the eyes of clinical epidemiology, firstly by reviewing recognized oncoviruses and their mechanisms of inducing tumorigenesis, and then by examining the potential role of integrated viruses in our genome in the process of carcinogenesis.
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Affiliation(s)
- Konstantina Kitsou
- Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece.,Immunobiology and Vaccinology Research Laboratory, First Department of Peadiatrics, "Aghia Sophia" Children's Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Maria Iliopoulou
- Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Vana Spoulou
- Immunobiology and Vaccinology Research Laboratory, First Department of Peadiatrics, "Aghia Sophia" Children's Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Pagona Lagiou
- Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Gkikas Magiorkinis
- Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
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Mahoney KE, Shabanowitz J, Hunt DF. MHC Phosphopeptides: Promising Targets for Immunotherapy of Cancer and Other Chronic Diseases. Mol Cell Proteomics 2021; 20:100112. [PMID: 34129940 PMCID: PMC8724925 DOI: 10.1016/j.mcpro.2021.100112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 05/11/2021] [Accepted: 06/02/2021] [Indexed: 12/27/2022] Open
Abstract
Major histocompatibility complex-associated peptides have been considered as potential immunotherapeutic targets for many years. MHC class I phosphopeptides result from dysregulated cell signaling pathways that are common across cancers and both viral and bacterial infections. These antigens are recognized by central memory T cells from healthy donors, indicating that they are considered antigenic by the immune system and that they are presented across different individuals and diseases. Based on these responses and the similar dysregulation, phosphorylated antigens are promising candidates for prevention or treatment of different cancers as well as a number of other chronic diseases.
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Affiliation(s)
- Keira E Mahoney
- Department of Chemistry, University of Virginia, Charlottesville, Virginia, USA
| | - Jeffrey Shabanowitz
- Department of Chemistry, University of Virginia, Charlottesville, Virginia, USA.
| | - Donald F Hunt
- Department of Chemistry, University of Virginia, Charlottesville, Virginia, USA; Department of Pathology, University of Virginia, Charlottesville, Virginia, USA.
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Mechanisms by Which Probiotic Bacteria Attenuate the Risk of Hepatocellular Carcinoma. Int J Mol Sci 2021; 22:ijms22052606. [PMID: 33807605 PMCID: PMC7961993 DOI: 10.3390/ijms22052606] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 02/07/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the most common primary liver cancer and the second leading cause of cancer-related deaths worldwide. Chronic infections with hepatitis B virus (HBV) and hepatitis C virus (HCV), alcoholic liver disease (ALD), and non-alcoholic fatty liver disease (NAFLD)/non-alcoholic steatohepatitis (NASH) are the major extrinsic risk factors of HCC development. Genetic background is pivotal in HCC pathogenesis, and both germline mutations and single nucleotide polymorphism (SNP) are intrinsic risk factors of HCC. These HCC risk factors predispose to hepatic injury and subsequent activation of fibrogenesis that progresses into cirrhosis and HCC. Probiotic bacteria can mitigate HCC risk by modulating host gut microbiota (GM) to promote growth of beneficial microbes and inhibit HCC-associated dysbiosis, thus preventing pathogen-associated molecular patterns (PAMPs)-mediated hepatic inflammation. Probiotics have antiviral activities against HBV and HCV infections, ameliorate obesity and risk of NAFLD/NASH, and their antioxidant, anti-proliferative, anti-angiogenic, and anti-metastatic effects can prevent the HCC pathogenesis. Probiotics also upregulate the expression of tumor suppressor genes and downregulate oncogene expression. Moreover, metabolites generated by probiotics through degradation of dietary phytochemicals may mitigate the risk of HCC development. These multiple anticancer mechanisms illustrate the potential of probiotics as an adjuvant strategy for HCC risk management and treatment.
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6
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Greville G, Llop E, Howard J, Madden SF, Perry AS, Peracaula R, Rudd PM, McCann A, Saldova R. 5-AZA-dC induces epigenetic changes associated with modified glycosylation of secreted glycoproteins and increased EMT and migration in chemo-sensitive cancer cells. Clin Epigenetics 2021; 13:34. [PMID: 33579350 PMCID: PMC7881483 DOI: 10.1186/s13148-021-01015-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 01/18/2021] [Indexed: 12/16/2022] Open
Abstract
Background Glycosylation, one of the most fundamental post-translational modifications, is altered in cancer and is subject in part, to epigenetic regulation. As there are many epigenetic-targeted therapies currently in clinical trials for the treatment of a variety of cancers, it is important to understand the impact epi-therapeutics have on glycosylation. Results Ovarian and triple negative breast cancer cells were treated with the DNA methyltransferase inhibitor, 5-AZA-2-deoxycytidine (5-AZA-dC). Branching and sialylation were increased on secreted N-glycans from chemo-sensitive/non-metastatic cell lines following treatment with 5-AZA-dC. These changes correlated with increased mRNA expression levels in MGAT5 and ST3GAL4 transcripts in ovarian cancer cell lines. Using siRNA transient knock down of GATA2 and GATA3 transcription factors, we show that these regulate the glycosyltransferases ST3GAL4 and MGAT5, respectively. Moreover, 5-AZA-dC-treated cells displayed an increase in migration, with a greater effect seen in chemo-sensitive cell lines. Western blots showed an increase in apoptotic and senescence (p21) markers in all 5-AZA-dC-treated cells. The alterations seen in N-glycans from secreted glycoproteins in 5-AZA-dC-treated breast and ovarian cancer cells were similar to the N-glycans previously known to potentiate tumour cell survival. Conclusions While the FDA has approved epi-therapeutics for some cancer treatments, their global effect is still not fully understood. This study gives insight into the effects that epigenetic alterations have on cancer cell glycosylation, and how this potentially impacts on the overall fate of those cells. Graphic abstract ![]()
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Affiliation(s)
- Gordon Greville
- GlycoScience Group, the National Institute for Bioprocessing, Research and Training (NIBRT), Fosters Avenue, Mount Merrion, Blackrock, Co Dublin, Ireland.,College of Health and Agricultural Science (CHAS), UCD School of Medicine, University College Dublin (UCD), Belfield, Dublin 4, Ireland
| | - Esther Llop
- Biochemistry and Molecular Biology Unit, Department of Biology, University of Girona, Girona, Spain.,Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - Jane Howard
- College of Health and Agricultural Science (CHAS), UCD School of Medicine, University College Dublin (UCD), Belfield, Dublin 4, Ireland.,UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin (UCD), Belfield, Dublin 4, Ireland
| | - Stephen F Madden
- Data Science Centre, Royal College of Surgeons in Ireland (RCSI), Dublin 2, Ireland
| | - Antoinette S Perry
- UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin (UCD), Belfield, Dublin 4, Ireland.,School of Biology and Environmental Science, University College Dublin (UCD), Belfield, Dublin 4, Ireland
| | - Rosa Peracaula
- Biochemistry and Molecular Biology Unit, Department of Biology, University of Girona, Girona, Spain.,Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - Pauline M Rudd
- GlycoScience Group, the National Institute for Bioprocessing, Research and Training (NIBRT), Fosters Avenue, Mount Merrion, Blackrock, Co Dublin, Ireland.,UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin (UCD), Belfield, Dublin 4, Ireland
| | - Amanda McCann
- College of Health and Agricultural Science (CHAS), UCD School of Medicine, University College Dublin (UCD), Belfield, Dublin 4, Ireland.,UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin (UCD), Belfield, Dublin 4, Ireland
| | - Radka Saldova
- GlycoScience Group, the National Institute for Bioprocessing, Research and Training (NIBRT), Fosters Avenue, Mount Merrion, Blackrock, Co Dublin, Ireland. .,College of Health and Agricultural Science (CHAS), UCD School of Medicine, University College Dublin (UCD), Belfield, Dublin 4, Ireland.
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7
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Masciullo V, Valdivieso P, Amadio G, Santoro A, Angelico G, Sgambato A, Boffo S, Giordano A, Scambia G, Zannoni GF. Role of Retinoblastoma Protein Family (Rb/p105 and Rb2/p130) Expression in the Histopathological Classification of Borderline Ovarian Tumors. Front Med (Lausanne) 2020; 7:596226. [PMID: 33262995 PMCID: PMC7686580 DOI: 10.3389/fmed.2020.596226] [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: 08/18/2020] [Accepted: 10/15/2020] [Indexed: 11/13/2022] Open
Abstract
Borderline ovarian tumors (BOT) are uncommon but not rare epithelial ovarian neoplasms, intermediate between benign and malignant categories. Emerging knowledge supports the notion that subtypes of borderline ovarian tumors comprise distinct biologic, pathogenetic, and molecular entities, precluding a single unifying concept for BOT. The identification of valuable markers for the diagnosis and classification of these tumors is in need. Among the molecular candidates, the Retinoblastoma (Rb) family members Rb/p105 and Rb2/p130 seem to play a pivotal role in ovarian cancer. In particular, Rb/p105, when in the unphosphorylated form, acts as a growth suppressor controlling cell cycle and tumor progression; whereas, the phosphorylated form activates gene transcription and cellular proliferation. While Rb/p105 is ubiquitously confined to the nuclei of cycling and quiescent cells, Rb2/p130 activity is also regulated by intracellular localization. According to this, Rb family members could represent a novel marker in diagnosis and classification risk for patients with BOT. In this study, we evaluated the expression and subcellular localization of proteins of the retinoblastoma (Rb) gene family in 65 ovarian borderline tumors. Statistically significant differences were found in nuclear and cytoplasmic expressions of Rb/p105 and Rb2/p130 according to different examined histotypes. In detail, the nuclear expression of Rb/p105 and Rb2/p130 was more frequently detected in serous (84.6%) than sero-mucinous (42.1%) and mucinous (50%) types. Conversely, the cytoplasmic expression of Rb2/p130 was not detected in serous tumors and frequently observed in mucinous subtypes (80%). Our findings suggest that Rb proteins do not play a key role in the tumor progression of serous borderline tumors since any cases showed cytoplasmic localization. By contrast, the observed higher cytoplasmic expression of Rb2/p130 in intestinal mucinous BOTs is indicative of Rb protein family involvement in the cancerogenesis pathway of mucinous ovarian tumors. Also, mucinous BOTs of intestinal-type, exhibiting low nuclear and high cytoplasmic levels of Rb2/p130 might potentially be considered a high-risk category of malignant evolution. Further studies on larger series are needed to clarify how BOTs could be stratified in different prognostic groups according to their Rb proteins immunohistochemical profile.
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Affiliation(s)
- Valeria Masciullo
- Unità di Ginecologia Oncologica, Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italy
| | - Paola Valdivieso
- Unità di Ginecologia Oncologica, Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italy
| | - Giulia Amadio
- Unità di Ginecologia Oncologica, Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italy
| | - Angela Santoro
- Unità di Gineco-Patologia e Patologia Mammaria, Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italy
| | - Giuseppe Angelico
- Unità di Gineco-Patologia e Patologia Mammaria, Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italy
| | - Alessandro Sgambato
- Istituto di Patologia Generale, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Silvia Boffo
- Department of Biology, College of Science and Technology, Sbarro Institute for Cancer Research and Molecular Medicine, Temple University, Philadelphia, PA, United States
| | - Antonio Giordano
- Department of Biology, College of Science and Technology, Sbarro Institute for Cancer Research and Molecular Medicine, Temple University, Philadelphia, PA, United States
| | - Giovanni Scambia
- Unità di Ginecologia Oncologica, Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italy
- Istituto di Clinica Ostetrica e Ginecologica, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Gian Franco Zannoni
- Unità di Gineco-Patologia e Patologia Mammaria, Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italy
- Istituto di Anatomia Patologica, Università Cattolica del Sacro Cuore, Roma, Italy
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Whole Genome 5'-Methylcytosine Level Quantification in Cirrhotic HCV-Infected Egyptian Patients with and without Hepatocellular Carcinoma. Int J Genomics 2020; 2020:1769735. [PMID: 33083446 PMCID: PMC7556053 DOI: 10.1155/2020/1769735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 08/26/2020] [Accepted: 09/20/2020] [Indexed: 11/18/2022] Open
Abstract
DNA methylation is an epigenetic mechanism used by cells to control gene expression. DNA methylation is a commonly used epigenetic signaling tool that can hold genes in the “off” position. Chronic infection with hepatitis C virus (HCV) is considered a major risk for chronic liver impairment. It is the most common leading cause of HCC. The present work is aimed at studying whole genome 5′-methylcytosine levels in cirrhotic HCV-infected Egyptian patients. In the present study, 120 Egyptian adults were included. They were divided into two groups: group І (40 apparently healthy control subjects) and group ІІ (80 HCV-infected patients). Furthermore, group II was subdivided into 2 subgroups according to the presence of HCC in HCV-infected subjects. To all studied subjects, the level of 5-mC% was measured in peripheral blood. In the present study, the median of 5′-methylcytosine% in the control group (group I) was 2.5, in the HCV group (group IIa) was 2.45, and in the HCC group (group II b) was 2.25. A stepwise decrease in 5′-methylcytosine% from the control (group I) toward HCC (group IIb) was observed, taking into consideration that the stepwise global hypomethylation was not statistically significant (p = 0.811). There was a negative correlation between ALT and 5′-methylcytosine% (p = −0.029). From this study, we can conclude that global DNA 5′-methylcytosine% does not differ in HCV-infected cirrhotic patients and HCC patients when compared to normal controls. Consecutively, we had concluded that there is no impact of 5′-methylcytosine% on the development of liver cirrhosis or HCC. Moreover, the negative correlation between 5′-methylcytosine% and serum ALT level denotes a trend of decrease in 5′-methylcytosine% with more liver damage.
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9
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Ma Z, Liu Y, Hao Z, Hua X, Li W. DNA hypermethylation of aurora kinase A in hepatitis C virus‑positive hepatocellular carcinoma. Mol Med Rep 2019; 20:2519-2532. [PMID: 31322223 PMCID: PMC6691273 DOI: 10.3892/mmr.2019.10487] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 03/05/2019] [Indexed: 12/12/2022] Open
Abstract
Changes in the methylation levels of tumor suppressor genes or proto-oncogenes are involved in the pathogenesis of hepatitis C virus (HCV) infection-induced hepatocellular carcinoma (HCC). The aim of the present study was to identify novel aberrantly methylated differentially expressed genes by integrating mRNA expression profile (GSE19665 and GSE62232) and methylation profile (GSE60753) microarrays downloaded from the Gene Expression Omnibus database. Functional enrichment analysis of screened genes was performed using the DAVID software and BinGO database. Protein-protein interaction (PPI) networks were constructed using the STRING database, followed by module analysis with MCODE software. The transcriptional and translational expression levels of crucial genes were confirmed using The Cancer Genome Atlas (TCGA) datasets and Human Protein Atlas database (HPA). A total of 122 downregulated/hypermethylated genes and 63 upregulated/hypomethylated genes were identified. These genes were enriched in the Gene Ontology biological processes terms of ‘inflammatory response’ [Fos proto-oncogene, AP-1 transcription factor subunit (FOS)] and ‘cell cycle process’ [aurora kinase A (AURKA), cyclin dependent kinase inhibitor 3 (CDKN3) and ubiquitin conjugating enzyme E2 C (UBE2C)]. PPI network and module analysis indicated that human oncogenes FOS, AURKA, CDKN3 and UBE2C may be hub genes. mRNA, protein expression and methylation levels of AURKA and FOS were validated by TCGA and HPA data. In conclusion, aberrantly methylated AURKA and FOS may be potential therapeutic targets for HCV-positive HCC.
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Affiliation(s)
- Zuohong Ma
- Department of Hepatopancreatobiliary Surgery, Cancer Hospital of China Medical University, Shenyang, Liaoning 110042, P.R. China
| | - Yefu Liu
- Department of Hepatopancreatobiliary Surgery, Cancer Hospital of China Medical University, Shenyang, Liaoning 110042, P.R. China
| | - Zhiqiang Hao
- Department of Hepatopancreatobiliary Surgery, Cancer Hospital of China Medical University, Shenyang, Liaoning 110042, P.R. China
| | - Xiangdong Hua
- Department of Hepatopancreatobiliary Surgery, Cancer Hospital of China Medical University, Shenyang, Liaoning 110042, P.R. China
| | - Wenxin Li
- Department of Hepatopancreatobiliary Surgery, Cancer Hospital of China Medical University, Shenyang, Liaoning 110042, P.R. China
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Chen Y, Guo Y, Li Y, Yang J, Liu J, Wu Q, Wang R. miR‑300 regulates tumor proliferation and metastasis by targeting lymphoid enhancer‑binding factor 1 in hepatocellular carcinoma. Int J Oncol 2019; 54:1282-1294. [PMID: 30968150 PMCID: PMC6411350 DOI: 10.3892/ijo.2019.4715] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 01/18/2019] [Indexed: 12/14/2022] Open
Abstract
Accumulating evidence indicates that microRNAs (miRNAs) have a critical role in cell proliferation and metastasis in hepatocellular carcinoma (HCC). However, the effect of miR-300 on the development and progression of HCC remains unclear. In the present study, it was observed that miRNA (miR)-300 expression was significantly decreased in HCC cell lines compared with normal liver cells. Furthermore, we detected the effects of miR-300 on cell proliferation and apoptosis, cell cycle, migration and invasion by using MTT, colony formation assay, wound healing, Transwell assay and flow cytometry methods, respectively. The results demonstrated that miR-300 overexpression inhibited proliferation, induced apoptosis and G1/S cell cycle arrest, and suppressed migration and invasion in Huh-7 cells, whereas miR-300 silencing promoted the proliferation, migration and invasion of Hep3B cells. Mechanistically, the transcription factor lymphoid enhancer-binding factor 1 (LEF-1), which was verified as a direct target gene of miR-300, promoted cell proliferation, migration and invasion and mediates the effects of miR-300 on HCC cells. In addition, low expression of miR-300 and high expression of LEF-1 in HCC tissues were found to be associated with poor prognosis of patients with HCC. These findings indicate that miR-300 may be a potential prognostic predictor and therapeutic target for patients with HCC.
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Affiliation(s)
- Yufo Chen
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Yuanyuan Guo
- Department of Urology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Yawei Li
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Jingwen Yang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Jing Liu
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Qiong Wu
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Rui Wang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
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11
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Sharma G, Raheja H, Das S. Hepatitis C virus: Enslavement of host factors. IUBMB Life 2018; 70:41-49. [PMID: 29281185 DOI: 10.1002/iub.1702] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 11/20/2017] [Accepted: 11/28/2017] [Indexed: 12/11/2022]
Abstract
Hepatitis C virus (HCV) has infected over 170 million people world-wide. This infection causes severe liver damage that can progress to hepatocellular carcinoma leading to death of the infected patients. Development of a cell culture model system for the study of HCV infection in the recent past has helped the researchers world-wide to understand the biology of this virus. Studies over the past decade have revealed the tricks played by the virus to sustain itself, for as long as 40 years, in the host setup without being eliminated by the immune system. Today we understand that the host organelles and different cellular proteins are affected during HCV infection. This cytoplasmic virus has all the cellular organelles at its disposal to successfully replicate, from ribosomes and intracellular membranous structures to the nucleus. It modulates these organelles at both the structural and the functional levels. The vast knowledge about the viral genome and viral proteins has also helped in the development of drugs against the virus. Despite the achieved success rate to cure the infected patients, we struggle to eliminate the cases of recurrence and the non-responders. Such cases might emerge owing to the property of the viral genome to accumulate mutations during its succeeding replication cycles which favours its survival. The current situation calls an urgent need for alternate therapeutic strategies to counter this major problem of human health. © 2017 IUBMB Life, 70(1):41-49, 2018.
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Affiliation(s)
- Geetika Sharma
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, 560012, Karnataka, India
| | - Harsha Raheja
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, 560012, Karnataka, India
| | - Saumitra Das
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, 560012, Karnataka, India
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12
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Charostad J, Astani A, Goudarzi H, Faghihloo E. DNA methyltransferases in virus-associated cancers. Rev Med Virol 2018; 29:e2022. [PMID: 30511446 DOI: 10.1002/rmv.2022] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 10/24/2018] [Accepted: 10/24/2018] [Indexed: 12/19/2022]
Abstract
Human tumor viruses are either casually linked or contribute in the development of human cancers. Viruses can stimulate oncogenesis through affecting diverse biological pathways in human cells. Growing data have demonstrated frequent involvement of one of the most characteristic parts of cellular epigenetic machinery, DNA methylation, in the oncogenesis. DNA methylation of cellular genes is catalyzed by DNA methyltransferases (DNMTs) as a key effector enzyme in this process. Dysregulation of DNMTs can cause aberrant gene methylation in promoter of cancer-related genes including tumor suppressor genes, resulting in gene silencing. In this regard, the role of tumor viruses is remarkable. Here, in this review, we used published information to elucidate whether tumor viruses are able to manipulate DNMT regulation, and if so, what are its consequences in the process of oncogenesis. This essay also aims to shed light on which cellular pathways have been engaged by viruses to induce DNMTs.
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Affiliation(s)
- Javad Charostad
- Department of Virology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Akram Astani
- Zoonotic Diseases Research Center, School of Public Health, Sahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Microbiology, Shahid Sadoghi University of Medical Science, Yazd, Iran
| | - Hossein Goudarzi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ebrahim Faghihloo
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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13
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USP24 induces IL-6 in tumor-associated microenvironment by stabilizing p300 and β-TrCP and promotes cancer malignancy. Nat Commun 2018; 9:3996. [PMID: 30266897 PMCID: PMC6162259 DOI: 10.1038/s41467-018-06178-1] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 08/23/2018] [Indexed: 12/19/2022] Open
Abstract
We have previously demonstrated that USP24 is involved in cancer progression. Here, we found that USP24 expression is upregulated in M2 macrophages and lung cancer cells. Conditioned medium from USP24-knockdown M2 macrophages decreases the migratory and chemotactic activity of lung cancer cells and the angiogenic properties of human microvascular endothelial cell 1 (HMEC-1). IL-6 expression is significantly decreased in USP24-knockdown M2 macrophages and lung cancer cells, and IL-6-replenished conditioned medium restores the migratory, chemotactic and angiogenetic properties of the cells. USP24 stabilizes p300 and β-TrCP to increase the levels of histone-3 acetylation and NF-κB, and decreases the levels of DNMT1 and IκB, thereby increasing IL-6 transcription in M2 macrophages and lung cancer cells, results in cancer malignancy finally. IL-6 has previously been a target for cancer drug development. Here, we provide direct evidence to support that USP24 promotes IL-6 expression, which might be beneficial for cancer therapy. USP24 has previously been reported to be involved in cancer progression. Here, the authors demonstrate that USP24 stabilizes p300 and β-TrCP to increase the levels of NF-κB and histone-3 acetylation, and decrease DNMT1 and IκB levels which promotes IL-6 expression in M2 macrophages and lung cancer cells.
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14
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Farman FU, Iqbal M, Azam M, Saeed M. Nucleosomes positioning around transcriptional start site of tumor suppressor (Rbl2/p130) gene in breast cancer. Mol Biol Rep 2018; 45:185-194. [PMID: 29417345 DOI: 10.1007/s11033-018-4151-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 01/24/2018] [Indexed: 12/17/2022]
Abstract
Dynamic positioning of nucleosomes is pivotal in determining level of genes expression especially on or around transcription start site (TSS) of a gene. Purpose of the current study was to determine nucleosome position around TSS of Rbl2/p130. We investigated Rbl2/p130 expression in connection to nucleosome positions around its TSS among breast tumors and their adjacent normal control tissues (ANCT) using micrococcal nuclease (MNAse) digestion assay and ChIP-PCR analysis. Three fold reduced Rbl2/p130 expression in these tumor tissues were noticed compared to their control tissues. DNA obtained from MNAse digested chromatin was used as PCR template. Region between - 137 to + 140 around TSS was scanned using 3 primer pairs (P1 = - 137 to + 69; P2 = - 90 to + 69; P3 = - 33 to + 140). ~ 66% breast tumors and ~ 26% ANCT samples were positive for P1. The difference was found statistically significant (p = 0.000) with an odd ratio (OD) of 9.143, suggesting that nucleosome formation in this region is ~ 9 times more probable in tumor samples. ~ 73% of the tumor and 60% ANCT were positive for P2, which although is significant (p = 0.035) with OD = 3.250, but less preferable than P1. However, P3 was not found to be a preferred area for nucleosome occupancy (p = 0.670; OD = 1.2). Negative correlations for nucleosome positions were observed especially for P1. Our results indicate that nucleosome are present slightly downstream of TSS in routine, while in case of breast carcinogenesis nucleosomes slides 55 bases upstream of the TSS, aligning + 1 position at the center of nucleosome, hence hindering access to the transcriptional machinery.
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Affiliation(s)
- Farman Ullah Farman
- Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS Institute of Information Technology (CIIT), Islamabad, Pakistan
| | - Mehwish Iqbal
- Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS Institute of Information Technology (CIIT), Islamabad, Pakistan
| | - Muhammad Azam
- Department of Statistics & Computer Science, University of Veterinary & Animal Sciences, Lahore, Pakistan
| | - Muhammad Saeed
- Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS Institute of Information Technology (CIIT), Islamabad, Pakistan.
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15
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El-Mesery M, El-Mowafy M, Elgaml A, Youssef LF, Abed SY. Correlation of Serum Soluble Fibrinogen-Like Protein 2 with Soluble FAS Ligand and Interferon Gamma in Egyptian Hepatitis C Virus-Infected Patients and Hepatocellular Carcinoma Patients. J Interferon Cytokine Res 2017; 37:342-347. [PMID: 28609212 DOI: 10.1089/jir.2016.0128] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Infection with hepatitis C virus (HCV) remains one of the serious human diseases worldwide, especially in Egypt, which can lead to cirrhosis or hepatocellular carcinoma (HCC). However, the exact molecular mechanism of HCC progress in HCV-infected patients remains unclear. Soluble fibrinogen-like protein 2 (sFGL2) is a modulator of the immune response that is secreted by T cells and inhibits maturation of dendritic cells and T cell proliferation. In the current study, serum sFGL2 levels were analyzed by enzyme-linked immunosorbent assay (ELISA) technique in 30 chronic HCV-infected patients (HCV group), 30 chronic HCV-infected patients with HCC (HCC group), and 12 healthy individuals (control group). Moreover, serum levels of soluble FAS ligand (sFASL) and interferon gamma (IFN-γ) were analyzed and correlated with sFGL2 levels. According to our results, serum sFGL2 levels were significantly elevated in all patients with chronic HCV infection. However, HCC patients showed lower sFGL2 levels than HCV-infected patients without HCC incidence. In addition, serum sFASL levels were significantly elevated in both HCV and HCC groups, whereas serum IFN-γ levels were only elevated in the HCC group. Interestingly, sFGL2 correlated positively with serum total bilirubin level and negatively with serum levels of sFASL, IFN-γ, and albumin in HCV and HCC groups. Thus, conclusively, sFGL2 level increases in Egyptian HCV-infected and HCC patients. Taken together, the current work may open future possibility of designing new treatment strategies for HCV infection targeting sFGL2 and its immunosuppressive effect.
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Affiliation(s)
- Mohamed El-Mesery
- 1 Department of Biochemistry, Faculty of Pharmacy, Mansoura University , Mansoura, Egypt
| | - Mohammed El-Mowafy
- 2 Department of Microbiology and Immunology, Faculty of Pharmacy, Mansoura University , Mansoura, Egypt
| | - Abdelaziz Elgaml
- 2 Department of Microbiology and Immunology, Faculty of Pharmacy, Mansoura University , Mansoura, Egypt
| | - Laila F Youssef
- 1 Department of Biochemistry, Faculty of Pharmacy, Mansoura University , Mansoura, Egypt
| | - Sally Y Abed
- 3 Department of Tropical Medicine, Faculty of Medicine, Mansoura University , Mansoura, Egypt
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16
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Jiang XH, Xie YT, Cai YP, Ren J, Ma T. Effects of hepatitis C virus core protein and nonstructural protein 4B on the Wnt/β-catenin pathway. BMC Microbiol 2017; 17:124. [PMID: 28545480 PMCID: PMC5445264 DOI: 10.1186/s12866-017-1032-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 05/15/2017] [Indexed: 12/21/2022] Open
Abstract
Background Hepatitis C virus (HCV) core protein and nonstructural protein 4B (NS4B) are potentially oncogenic. Aberrant activation of the Wnt/β-catenin signaling pathway is closely associated with hepatocarcinogenesis. We investigated the effects of HCV type 1b core protein and NS4B on Wnt/β-catenin signaling in various liver cells, and explored the molecular mechanism underlying HCV-related hepatocarcinogenesis. Results Compared with the empty vector control, HCV core protein and NS4B demonstrated the following characteristics in the Huh7 cells: significantly enhanced β-catenin/Tcf-dependent transcriptional activity (F = 40.87, P < 0.01); increased nuclear translocation of β-catenin (F = 165.26, P < 0.01); upregulated nuclear β-catenin, cytoplasmic β-catenin, Wnt1, c-myc, and cyclin D1 protein expression (P < 0.01); and promoted proliferation of Huh7 cells (P < 0.01 or P < 0.05). Neither protein enhanced β-catenin/Tcf-dependent transcriptional activity in the LO2 cells (F = 0.65, P > 0.05), but they did significantly enhance Wnt3a-induced β-catenin/Tcf-dependent transcriptional activity (F = 64.25, P < 0.01), and promoted the nuclear translocation of β-catenin (F = 66.54, P < 0.01) and the Wnt3a-induced proliferation of LO2 cells (P < 0.01 or P < 0.05). Moreover, activation of the Wnt/β-catenin signaling pathway was greater with the core protein than with NS4B (P < 0.01 or P < 0.05). Conclusions HCV core protein and NS4B directly activate the Wnt/β-catenin signaling pathway in Huh7 cells and LO2 cells induced by Wnt3a. These data suggest that HCV core protein and NS4B contribute to HCV-associated hepatocellular carcinogenesis. Electronic supplementary material The online version of this article (doi:10.1186/s12866-017-1032-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiao-Hua Jiang
- Department of Infectious Diseases, the First Affiliated Hospital of the University of South China, Hengyang, 421001, China
| | - Yu-Tao Xie
- Department of Infectious Diseases, Xiangya Hospital of Central South University, Changsha, 410087, China.
| | - Ya-Ping Cai
- Department of Epidemiology and Health Statistics, the University of South China, Hengyang, 421001, China
| | - Jing Ren
- Department of Infectious Diseases, the First Affiliated Hospital of the University of South China, Hengyang, 421001, China
| | - Tao Ma
- Department of Infectious Diseases, the First Affiliated Hospital of the University of South China, Hengyang, 421001, China
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17
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Overexpression of centromere protein K (CENP-K) gene in hepatocellular carcinoma promote cell proliferation by activating AKT/TP53 signal pathway. Oncotarget 2017; 8:73994-74005. [PMID: 29088763 PMCID: PMC5650318 DOI: 10.18632/oncotarget.18172] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 04/28/2017] [Indexed: 01/14/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the high-incidence malignant tumors with very poor prognosis. Identification of potential oncogenes is critical to discovering novel therapeutic targets for many cancers, including HCC. In our previous studies, using microarray technology, we conformed that CENP-K was overexpressed in HCCs. However, whether the overexpression of CENP-K contributes to hepatocarcinogenesis remains unclear. In this study, we found that CENP-K was significantly up-regulated in 60% (63 of 105) of HCC specimens at the mRNA level compared to adjacent non-cancerous liver specimens, as determined by RT-qPCR. Immunohistochemical staining confirmed similar results at the protein level. Interestingly, we found that the DNA methylation status of the CENP-K promoter was significantly reduced in HCC specimens with increased CENP-K expression. In addition, CENP-K mRNA expression level was positively correlated with the level of alpha-fetoprotein (AFP) (≥ 400 ng/ml) and tumor size (≥ 3 cm) (p < 0.05). CENP-K overexpression promoted proliferation and migration in SMMC7721 and Focus cells. In contrast, knock down of CENP-K significantly inhibited the growth of MHCC-LM3 and QGY7703 cells. Furthermore, we found that overexpression of CENP-K stimulated the tyrosine phosphorylation of the AKT and MDM2 proteins, but inhibited tyrosine phosphorylation of the TP53 protein. Our data suggest that the up-regulation of CENP-K, a potential oncotarget gene, may be modulated by epigenetic events and can contribute to hepatocarcinogenesis.
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18
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Zhou Y, Zhao Y, Gao Y, Hu W, Qu Y, Lou N, Zhu Y, Zhang X, Yang H. Hepatitis C virus NS3 protein enhances hepatocellular carcinoma cell invasion by promoting PPM1A ubiquitination and degradation. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2017; 36:42. [PMID: 28283039 PMCID: PMC5345236 DOI: 10.1186/s13046-017-0510-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 02/23/2017] [Indexed: 01/03/2023]
Abstract
Background Growing evidence suggests that hepatitis C virus (HCV) contributes to hepatocellular carcinoma (HCC) by directly modulating oncogenic signaling pathways. Protein phosphatase magnesium-dependent 1A (PPM1A) has recently emerged as an important tumor suppressor as it can block a range of tumor-centric signaling pathways through protein dephosphorylation. However, the role and regulatory mechanisms of PPM1A in HCV-infected cells have not been reported. Methods Total, cytoplasmic, and nuclear PPM1A protein after HCV infection or overexpression of HCV nonstructural protein 3 (NS3) were detected by western blotting. The expression of PPM1A in normal liver and HCV-related HCC tissues was quantified by immunohistochemistry. The effects of HCV infection and NS3 expression on the PPM1A protein level were systematically analyzed, and the ubiquitination level of PPM1A was determined by precipitation with anti-PPM1A and immunoblotting with either anti-ubiquitin or anti-PPM1A antibody. Finally, the roles of NS3 and PPM1A in hepatoma cell migration and invasion were assessed by wound healing and transwell assays, respectively. Results HCV infection and replication decreased PPM1A abundance, mediated by NS3, in hepatoma cells. Compared to normal liver tissues, the expression of PPM1A was significantly decreased in the HCC tumor tissues and adjacent non-tumor tissues. NS3 directly interacted with PPM1A to promote PPM1A ubiquitination and degradation, which was dependent on its protease domain. Blockade of PPM1A through small interfering RNA significantly promoted HCC cell migration, invasion, and epithelial mesenchymal transition (EMT), which were further intensified by TGF-β1 stimulation, in vitro. Furthermore, restoration of PPM1A abrogated the NS3-mediated promotion of HCC migration and invasion to a great extent, which was dependent on its protein phosphatase function. Conclusions Our findings demonstrate that the HCV protein NS3 can downregulate PPM1A by promoting its ubiquitination and proteasomal degradation, which might contribute to the migration and invasion of hepatoma cells and may represent a new strategy of HCV in carcinogenesis. Electronic supplementary material The online version of this article (doi:10.1186/s13046-017-0510-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yali Zhou
- Department of Pathogenic Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China
| | - Yan Zhao
- Department of Pathogenic Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China
| | - Yaoying Gao
- Department of Pathogenic Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China
| | - Wenjun Hu
- Department of Pathogenic Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China
| | - Yan Qu
- Department of Pathogenic Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China
| | - Ning Lou
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei Province, China
| | - Ying Zhu
- State Key Laboratory of Virology and College of Life Sciences, Wuhan University, Wuhan, 430072, Hubei Province, China
| | - Xiaoping Zhang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei Province, China.
| | - Hongmei Yang
- Department of Pathogenic Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China.
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Reale A, Messa L, Vitiello A, Loregian A, Palù G. 4th European Seminars in Virology on Oncogenic and Oncolytic Viruses, in Bertinoro (Bologna), Italy. J Cell Physiol 2016; 232:2641-2648. [PMID: 27859242 DOI: 10.1002/jcp.25692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 11/14/2016] [Indexed: 11/09/2022]
Abstract
The 4th European Seminars in Virology (EuSeV), which was focused on oncogenic and oncolytic viruses, was held in Bertinoro (Bologna), Italy, from June 10 to 12, 2016. This article summarizes the plenary lectures and aims to illustrate the main topics discussed at 4th EuSeV, which brought together knowledge and expertise in the field of oncogenic and oncolytic viruses from all over the world. The meeting was divided in two parts, "Mechanisms of Viral Oncogenesis" and "Viral Oncolysis and Immunotherapy," which were both focused on dissecting the complex and multi-factorial interplay between cancer and human viruses and on exploring new anti-cancer strategies. J. Cell. Physiol. 232: 2641-2648, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Alberto Reale
- Department of Molecular Medicine, University of Padua, Padua, Italy
| | - Lorenzo Messa
- Department of Molecular Medicine, University of Padua, Padua, Italy
| | - Adriana Vitiello
- Department of Molecular Medicine, University of Padua, Padua, Italy
| | - Arianna Loregian
- Department of Molecular Medicine, University of Padua, Padua, Italy
| | - Giorgio Palù
- Department of Molecular Medicine, University of Padua, Padua, Italy
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20
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Li L, Wu J, Zheng F, Tang Q, Wu W, Hann SS. Inhibition of EZH2 via activation of SAPK/JNK and reduction of p65 and DNMT1 as a novel mechanism in inhibition of human lung cancer cells by polyphyllin I. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2016; 35:112. [PMID: 27421653 PMCID: PMC4947306 DOI: 10.1186/s13046-016-0388-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Accepted: 06/30/2016] [Indexed: 02/07/2023]
Abstract
Background Polyphyllin I (PPI), a bioactive phytochemical extracted from the Rhizoma of Paris polyphylla, has been reported to exhibit anti-cancer activity. However, the detailed mechanism underlying this remains to be elucidated. Methods Cell viability and cell cycle distribution were measured using a 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) and flow cytometry assays, respectively. The expression of enhancer of zeste homolog 2 (EZH2) mRNA was measured by quantitative real time PCR (qRT-PCR). Western blot analysis was performed to examine the phosphorylation and protein expression of stress-activated protein kinase/c-Jun N-terminal kinase (SAPK/JNK), p65, DNA methyltransferase 1 (DNMT1) and EZH2. Exogenous expression of p65, DNMT1, and EZH2 were carried out by transient transfection assays. Promoter activity of EZH2 gene was determined using Secrete-Pair Dual Luminescence Assay Kit. A xenografted tumor model in nude mice and bioluminescent imaging system were used to further test the effect of PPI in vivo. Results We showed that PPI significantly inhibited growth and induced cell cycle arrest of non-small cell lung cancer (NSCLC) cells in a dose-dependent manner. Mechanistically, we found that PPI increased the phosphorylation of SAPK/JNK, reduced protein expression of p65 and DNMT1. The inhibitor of SAPK/JNK (SP600125) blocked the PPI-inhibited p65 and DNMT1 protein expression. Interestingly, exogenously expressed p65 overcame PPI-inhibited protein expression of DNMT1. Moreover, PPI reduced EZH2 protein, mRNA, and promoter activity; overexpression of EZH2 resisted the PPI-inhibited cell growth, and intriguingly, negative feedback regulation of SAPK/JNK signaling. Finally, exogenous expression of DNMT1 antagonized the PPI-suppressed EZH2 protein expression. Consistent with this, PPI inhibited tumor growth, protein expression levels of p65, DNMT1 and EZH2, and increased phosphorylation of SAPK/JNK in vivo. Conclusion Our results show that PPI inhibits growth of NSCLC cells through SAPK/JNK-mediated inhibition of p65 and DNMT1 protein levels, subsequently; this results in the reduction of EZH2 gene expression. The interactions among p65, DNMT1 and EZH2, and feedback regulation of SAPK/JNK by EZH2 converge on the overall responses of PPI. This study reveals a novel mechanism for regulating EZH2 gene in response to PPI and suggests a new strategy for NSCLC associated therapy.
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Affiliation(s)
- Longmei Li
- Laboratory of Tumor Molecular Biology and Targeted Therapies of TCM, Guangdong Provincial Hospital of Chinese Medicine, No. 111, Dade Road, Guangzhou, Guangdong Province, 510120, China.,Department of Medical Oncology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, University of Guangzhou Traditional Chinese Medicine, Guangzhou, Guangdong Province, 510120, China
| | - JingJing Wu
- Laboratory of Tumor Molecular Biology and Targeted Therapies of TCM, Guangdong Provincial Hospital of Chinese Medicine, No. 111, Dade Road, Guangzhou, Guangdong Province, 510120, China
| | - Fang Zheng
- Laboratory of Tumor Molecular Biology and Targeted Therapies of TCM, Guangdong Provincial Hospital of Chinese Medicine, No. 111, Dade Road, Guangzhou, Guangdong Province, 510120, China
| | - Qing Tang
- Laboratory of Tumor Molecular Biology and Targeted Therapies of TCM, Guangdong Provincial Hospital of Chinese Medicine, No. 111, Dade Road, Guangzhou, Guangdong Province, 510120, China
| | - WanYin Wu
- Department of Medical Oncology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, University of Guangzhou Traditional Chinese Medicine, Guangzhou, Guangdong Province, 510120, China.
| | - Swei Sunny Hann
- Laboratory of Tumor Molecular Biology and Targeted Therapies of TCM, Guangdong Provincial Hospital of Chinese Medicine, No. 111, Dade Road, Guangzhou, Guangdong Province, 510120, China. .,Department of Medical Oncology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, University of Guangzhou Traditional Chinese Medicine, Guangzhou, Guangdong Province, 510120, China.
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Liu Y, Li Y, Wang R, Qin S, Liu J, Su F, Yang Y, Zhao F, Wang Z, Wu Q. MiR-130a-3p regulates cell migration and invasion via inhibition of Smad4 in gemcitabine resistant hepatoma cells. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2016; 35:19. [PMID: 26817584 PMCID: PMC4729098 DOI: 10.1186/s13046-016-0296-0] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 01/21/2016] [Indexed: 01/07/2023]
Abstract
Background Emerging evidence demonstrates that microRNAs (miRNAs) play an important role in regulation of cell growth, invasion and metastasis through inhibiting the expression of their targets. It has been reported that miR-130a-3p controls cell growth, migration and invasion in a variety of cancer cells. However, it is unclear whether miR-130a-3p regulates epithelial-mesenchymal transition (EMT) in drug resistant cancer cells. Therefore, in the current study, we explore the role and molecular mechanisms of miR-130a-3p in gemcitabine resistant (GR) hepatocellular carcinoma (HCC) cells. Methods The real-time RT-PCR was used to measure the miR-130a-3p expression in GR HCC cells compared with their parental cells. The wound healing assay was conducted to determine the cell migratory activity in GR HCC cells treated with miR-130a-3p mimics. The migration and invasion assays were also performed to explore the role of miR-130a-3p in GR HCC cells. Western blotting analysis was used to measure the expression of Smad4, E-cadherin, Vimentin, and MMP-2 in GR HCC cells after depletion of Smad4. The luciferase assay was conducted to validate whether Smad4 is a target of miR-130a-3p. The student t-test was used to analyze our data. Results We found the down-regulation of miR-130a-3p in GR HCC cells. Moreover, we validate the Smad4 as a potential target of miR-130a-3p. Furthermore, overexpression of miR-130a-3p suppressed Smad4 expression, whereas inhibition of miR-130a-3p increased Smad4 expression. Consistently, overexpression of miR-130a-3p or down-regulation of Smad4 suppressed the cell detachment, attachment, migration, and invasion in GR HCC cells. Conclusions Our findings provide a molecular insight on understanding drug resistance in HCC cells. Therefore, activation of miR-130a-3p or inactivation of Smad4 could be a novel approach for the treatment of HCC.
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Affiliation(s)
- Yang Liu
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Yumei Li
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Rui Wang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Shukui Qin
- Department of Medical Oncology, PLA Cancer Center, Nanjing Bayi Hospital, Nanjing, Jiangsu, China
| | - Jing Liu
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Fang Su
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Yan Yang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Fuyou Zhao
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Zishu Wang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Qiong Wu
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China.
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