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Jin X, Qin Z, Zhao H. Histone acetylation risk model predicts prognosis and guides therapy selection in glioblastoma: implications for chemotherapy and anti-CTLA-4 immunotherapy. BMC Immunol 2024; 25:51. [PMID: 39068393 PMCID: PMC11282667 DOI: 10.1186/s12865-024-00639-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Accepted: 07/01/2024] [Indexed: 07/30/2024] Open
Abstract
BACKGROUND Glioblastoma is characterized by high aggressiveness, frequent recurrence, and poor prognosis. Histone acetylation-associated genes have been implicated in its occurrence and development, yet their predictive ability in glioblastoma prognosis remains unclear. RESULTS This study constructs a histone acetylation risk model using Cox and LASSO regression analyses to evaluate glioblastoma prognosis. We assessed the model's prognostic ability with univariate and multivariate Cox regression analyses. Additionally, immune infiltration was evaluated using ESTIMATE and TIMER algorithms, and the SubMAP algorithm was utilized to predict responses to CTLA4 inhibitor. Multiple drug databases were applied to assess drug sensitivity in high- and low-risk groups. Our results indicate that the histone acetylation risk model is independent and reliable in predicting prognosis. CONCLUSIONS Low-risk patients showed higher immune activity and longer overall survival, suggesting anti-CTLA4 immunotherapy suitability, while high-risk patients might benefit more from chemotherapy. This model could guide personalized therapy selection for glioblastoma patients.
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Affiliation(s)
- Xingyi Jin
- Neurosurgery Department, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Zhigang Qin
- Neurosurgery Department, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Hang Zhao
- Neurosurgery Department, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China.
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2
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Lu P, Deng S, Liu J, Xiao Q, Zhou Z, Li S, Xin J, Shu G, Yi B, Yin G. Tweety homolog 3 promotes colorectal cancer progression through mutual regulation of histone deacetylase 7. MedComm (Beijing) 2024; 5:e576. [PMID: 38827027 PMCID: PMC11141500 DOI: 10.1002/mco2.576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 03/18/2024] [Accepted: 04/07/2024] [Indexed: 06/04/2024] Open
Abstract
Colorectal cancer (CRC) is one of the leading cancers worldwide, with metastasis being a major cause of high mortality rates among patients. In this study, dysregulated gene Tweety homolog 3 (TTYH3) was identified by Gene Expression Omnibus database. Public databases were used to predict potential competing endogenous RNAs (ceRNAs) for TTYH3. Quantitative real-time polymerase chain reaction, western blot, and immunohistochemistry were utilized to analyze TTYH3 and histone deacetylase 7 (HDAC7) levels. Luciferase assays confirmed miR-1271-5p directly targeting the 3' untranslated regions of TTYH3 and HDAC7. In vitro experiments such as transwell and human umbilical vein endothelial cell tube formation, as well as in vivo mouse models, were conducted to assess the biological functions of TTYH3 and HDAC7. We discovered that upregulation of TTYH3 in CRC promotes cell migration by affecting the Epithelial-mesenchymal transition pathway, which was independent of its ion channel activity. Mechanistically, TTYH3 and HDAC7 functioned as ceRNAs, reciprocally regulating each other's expression. TTYH3 competes for binding miR-1271-5p, increasing HDAC7 expression, facilitating CRC metastasis and angiogenesis. This study reveals the critical role of TTYH3 in promoting CRC metastasis through ceRNA crosstalk, offering new insights into potential therapeutic targets for clinical intervention.
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Affiliation(s)
- Pengyan Lu
- Department of PathologyXiangya Hospital, School of Basic Medical Sciences, Central South UniversityChangshaChina
| | - Shumin Deng
- Department of PathologyXiangya Hospital, School of Basic Medical Sciences, Central South UniversityChangshaChina
| | - Jiaxin Liu
- Department of PathologyXiangya Hospital, School of Basic Medical Sciences, Central South UniversityChangshaChina
| | - Qing Xiao
- Department of PathologyThe Third Xiangya Hospital, Central South UniversityChangshaChina
| | - Zhengwei Zhou
- Department of PathologyXiangya Hospital, School of Basic Medical Sciences, Central South UniversityChangshaChina
| | - Shuojie Li
- Department of PathologyXiangya Hospital, School of Basic Medical Sciences, Central South UniversityChangshaChina
| | - Jiaxuan Xin
- Department of Gastrointestinal SurgeryThe Third Xiangya Hospital, Central South UniversityChangshaChina
| | - Guang Shu
- Department of PathologyXiangya Hospital, School of Basic Medical Sciences, Central South UniversityChangshaChina
| | - Bo Yi
- Department of PathologyThe Third Xiangya Hospital, Central South UniversityChangshaChina
| | - Gang Yin
- Department of PathologyXiangya Hospital, School of Basic Medical Sciences, Central South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South UniversityChangshaChina
- China‐Africa Research Center of Infectious Diseases, School of Basic Medical Sciences, Central South UniversityChangshaHunan ProvinceChina
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Qian Y, Chen B, Sun E, Lu X, Li Z, Wang R, Fang D. Mesenchymal Stem Cell-Derived Extracellular Vesicles Alleviate Brain Damage Following Subarachnoid Hemorrhage via the Interaction of miR-140-5p and HDAC7. Mol Neurobiol 2024:10.1007/s12035-024-04118-3. [PMID: 38592585 DOI: 10.1007/s12035-024-04118-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 03/08/2024] [Indexed: 04/10/2024]
Abstract
Subarachnoid hemorrhage (SAH) triggers severe neuroinflammation and cognitive impairment, where microglial M1 polarization exacerbates the injury and M2 polarization mitigates damage. Mesenchymal stem cell-derived extracellular vesicles (MSC-EVs), carrying microRNA (miR)-140-5p, offer therapeutic promise by targeting the cAMP/PKA/CREB pathway and modulating microglial responses, demonstrating a novel approach for addressing SAH-induced brain injury. This research explored the role of miR-140-5p delivered by MSC-EVs in mitigating brain damage following SAH. Serum from SAH patients and healthy individuals was analyzed for miR-140-5p and cAMP levels. The association between miR-140-5p levels, brain injury severity, and patient survival was examined, along with the target relationship between miR-140-5p and histone deacetylases 7 (HDAC7). MSC-EVs were characterized for their ability to cross the blood-brain barrier and modulate the HDAC7/AKAP12/cAMP/PKA/CREB axis, reducing M1 polarization and inflammation. The therapeutic effect of MSC-EV-miR-140-5p was demonstrated in an SAH mouse model, showing reduced neuronal apoptosis and improved neurological function. This study highlights the potential of MSC-EV-miR-140-5p in mitigating SAH-induced neuroinflammation and brain injury, providing a foundation for developing MSC-EV-based treatments for SAH.
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Affiliation(s)
- Yu Qian
- Department of Neurosurgery, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, 212000, P.R. China
| | - Bo Chen
- Department of Neurosurgery, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, 212000, P.R. China
| | - Eryi Sun
- Department of Neurosurgery, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, 212000, P.R. China
| | - Xinyu Lu
- Department of Neurosurgery, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, 212000, P.R. China
| | - Zheng Li
- Department of Neurosurgery, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, 212000, P.R. China
| | - Runpei Wang
- Department of Neurosurgery, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, 212000, P.R. China
| | - Dazhao Fang
- Department of Neurosurgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, West Huanghe Road, Huaiyin District, Huai'an, Jiangsu Province, 223300, P.R. China.
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Patil RS, Maloney ME, Lucas R, Fulton DJR, Patel V, Bagi Z, Kovacs-Kasa A, Kovacs L, Su Y, Verin AD. Zinc-Dependent Histone Deacetylases in Lung Endothelial Pathobiology. Biomolecules 2024; 14:140. [PMID: 38397377 PMCID: PMC10886568 DOI: 10.3390/biom14020140] [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: 12/31/2023] [Revised: 01/19/2024] [Accepted: 01/21/2024] [Indexed: 02/25/2024] Open
Abstract
A monolayer of endothelial cells (ECs) lines the lumen of blood vessels and, as such, provides a semi-selective barrier between the blood and the interstitial space. Compromise of the lung EC barrier due to inflammatory or toxic events may result in pulmonary edema, which is a cardinal feature of acute lung injury (ALI) and its more severe form, acute respiratory distress syndrome (ARDS). The EC functions are controlled, at least in part, via epigenetic mechanisms mediated by histone deacetylases (HDACs). Zinc-dependent HDACs represent the largest group of HDACs and are activated by Zn2+. Members of this HDAC group are involved in epigenetic regulation primarily by modifying the structure of chromatin upon removal of acetyl groups from histones. In addition, they can deacetylate many non-histone histone proteins, including those located in extranuclear compartments. Recently, the therapeutic potential of inhibiting zinc-dependent HDACs for EC barrier preservation has gained momentum. However, the role of specific HDAC subtypes in EC barrier regulation remains largely unknown. This review aims to provide an update on the role of zinc-dependent HDACs in endothelial dysfunction and its related diseases. We will broadly focus on biological contributions, signaling pathways and transcriptional roles of HDACs in endothelial pathobiology associated mainly with lung diseases, and we will discuss the potential of their inhibitors for lung injury prevention.
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Affiliation(s)
- Rahul S. Patil
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - McKenzie E. Maloney
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Rudolf Lucas
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - David J. R. Fulton
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Vijay Patel
- Department of Cardiothoracic Surgery, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Zsolt Bagi
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Anita Kovacs-Kasa
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Laszlo Kovacs
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Yunchao Su
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Alexander D. Verin
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
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Li K, Wu X, Li Y, Hu TT, Wang W, Gonzalez FJ, Liu W. AKAP12 promotes cancer stem cell-like phenotypes and activates STAT3 in colorectal cancer. Clin Transl Oncol 2023; 25:3263-3276. [PMID: 37326825 DOI: 10.1007/s12094-023-03230-5] [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: 12/24/2022] [Accepted: 05/16/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND Cancer stem cells (CSCs) have unique biological characteristics, including tumorigenicity, immortality, and chemoresistance. Colorectal CSCs have been identified and isolated from colorectal cancers by various methods. AKAP12, a scaffolding protein, is considered to act as a potential suppressor in colorectal cancer, but its role in CSCs remains unknown. In this study, we investigated the function of AKAP12 in Colorectal CSCs. METHODS Herein, Colorectal CSCs were enriched by cell culture with a serum-free medium. CSC-associated characteristics were evaluated by Flow cytometry assay and qPCR. AKAP12 gene expression was regulated by lentiviral transfection assay. The tumorigenicity of AKAP12 in vivo by constructing a tumor xenograft model. The related pathways were explored by qPCR and Western blot. RESULTS The depletion of AKAP12 reduced colony formation, sphere formation, and expression of stem cell markers in colorectal cancer cells, while its knockdown decreased the volume and weight of tumor xenografts in vivo. AKAP12 expression levels also affected the expression of stemness markers associated with STAT3, potentially via regulating the expression of protein kinase C. CONCLUSION This study suggests Colorectal CSCs overexpress AKAP12 and maintain stem cell characteristics through the AKAP12/PKC/STAT3 pathway. AKAP12 may be an important therapeutic target for blocking the development of colorectal cancer in the field of cancer stem cells.
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Affiliation(s)
- Ke Li
- Department of Laboratory Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, People's Republic of China
| | - Xuan Wu
- Department of Laboratory Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, People's Republic of China
- Department of Laboratory Medicine, Shanghai Tenth People's Hospital Affiliated to Tongji University, Shanghai, 200070, People's Republic of China
| | - Yuan Li
- Department of Laboratory Medicine, Shanghai Tenth People's Hospital Affiliated to Tongji University, Shanghai, 200070, People's Republic of China
| | - Ting-Ting Hu
- Department of Laboratory Medicine, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, 200040, People's Republic of China
| | - Weifeng Wang
- Department of Laboratory Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, People's Republic of China
| | - Frank J Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Weiwei Liu
- Department of Laboratory Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, People's Republic of China.
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
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Wang Y, Abrol R, Mak JYW, Das Gupta K, Ramnath D, Karunakaran D, Fairlie DP, Sweet MJ. Histone deacetylase 7: a signalling hub controlling development, inflammation, metabolism and disease. FEBS J 2023; 290:2805-2832. [PMID: 35303381 PMCID: PMC10952174 DOI: 10.1111/febs.16437] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 02/02/2022] [Accepted: 03/16/2022] [Indexed: 12/20/2022]
Abstract
Histone deacetylases (HDACs) catalyse removal of acetyl groups from lysine residues on both histone and non-histone proteins to control numerous cellular processes. Of the 11 zinc-dependent classical HDACs, HDAC4, 5, 7 and 9 are class IIa HDAC enzymes that regulate cellular and developmental processes through both enzymatic and non-enzymatic mechanisms. Over the last two decades, HDAC7 has been associated with key roles in numerous physiological and pathological processes. Molecular, cellular, in vivo and disease association studies have revealed that HDAC7 acts through multiple mechanisms to control biological processes in immune cells, osteoclasts, muscle, the endothelium and epithelium. This HDAC protein regulates gene expression, cell proliferation, cell differentiation and cell survival and consequently controls development, angiogenesis, immune functions, inflammation and metabolism. This review focuses on the cell biology of HDAC7, including the regulation of its cellular localisation and molecular mechanisms of action, as well as its associative and causal links with cancer and inflammatory, metabolic and fibrotic diseases. We also review the development status of small molecule inhibitors targeting HDAC7 and their potential for intervention in different disease contexts.
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Affiliation(s)
- Yizhuo Wang
- Institute for Molecular Bioscience (IMB)The University of QueenslandSt. LuciaAustralia
- IMB Centre for Inflammation and Disease ResearchThe University of QueenslandSt. LuciaAustralia
| | - Rishika Abrol
- Institute for Molecular Bioscience (IMB)The University of QueenslandSt. LuciaAustralia
- IMB Centre for Inflammation and Disease ResearchThe University of QueenslandSt. LuciaAustralia
| | - Jeffrey Y. W. Mak
- Institute for Molecular Bioscience (IMB)The University of QueenslandSt. LuciaAustralia
| | - Kaustav Das Gupta
- Institute for Molecular Bioscience (IMB)The University of QueenslandSt. LuciaAustralia
- IMB Centre for Inflammation and Disease ResearchThe University of QueenslandSt. LuciaAustralia
| | - Divya Ramnath
- Institute for Molecular Bioscience (IMB)The University of QueenslandSt. LuciaAustralia
- IMB Centre for Inflammation and Disease ResearchThe University of QueenslandSt. LuciaAustralia
| | - Denuja Karunakaran
- Institute for Molecular Bioscience (IMB)The University of QueenslandSt. LuciaAustralia
- IMB Centre for Inflammation and Disease ResearchThe University of QueenslandSt. LuciaAustralia
| | - David P. Fairlie
- Institute for Molecular Bioscience (IMB)The University of QueenslandSt. LuciaAustralia
- IMB Centre for Inflammation and Disease ResearchThe University of QueenslandSt. LuciaAustralia
- Australian Infectious Diseases Research CentreThe University of QueenslandSt. LuciaAustralia
| | - Matthew J. Sweet
- Institute for Molecular Bioscience (IMB)The University of QueenslandSt. LuciaAustralia
- IMB Centre for Inflammation and Disease ResearchThe University of QueenslandSt. LuciaAustralia
- Australian Infectious Diseases Research CentreThe University of QueenslandSt. LuciaAustralia
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7
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Shen Z, Bei Y, Lin H, Wei T, Dai Y, Hu Y, Zhang C, Dai H. The role of class IIa histone deacetylases in regulating endothelial function. Front Physiol 2023; 14:1091794. [PMID: 36935751 PMCID: PMC10014714 DOI: 10.3389/fphys.2023.1091794] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 02/15/2023] [Indexed: 03/06/2023] Open
Abstract
Vascular endothelial cells (ECs) are monolayer cells located in the inner layer of the blood vessel. Endothelial function is crucial in maintaining local and systemic homeostasis and is precisely regulated by sophisticated signaling pathways and epigenetic regulation. Endothelial dysfunctions are the main factors for the pathophysiological process of cardiovascular and cerebrovascular diseases like atherosclerosis, hypertension, and stroke. In these pathologic processes, histone deacetylases (HDACs) involve in epigenetic regulation by removing acetyl groups from lysine residues of histones and regulating downstream gene expression. Among all HDACs, Class IIa HDACs (HDAC4, 5, 7, 9) contain only an N-terminal regulatory domain, exert limited HDAC activity, and present tissue-specific gene regulation. Here, we discuss and summarize the current understanding of this distinct subfamily of HDACs in endothelial cell functions (such as angiogenesis and immune response) with their molecular underpinnings. Furthermore, we also present new thoughts for further investigation of HDAC inhibitors as a potential treatment in several vascular diseases.
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Affiliation(s)
- Zexu Shen
- Department of Pharmacy, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Yun Bei
- Department of Pharmacy, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Haoran Lin
- Department of Pharmacy, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Taofeng Wei
- Department of Pharmacy, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Yunjian Dai
- Department of Pharmacy, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Yangmin Hu
- Department of Pharmacy, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Chao Zhang
- Department of Pharmacy, The First People’s Hospital of Hangzhou Lin’an District, Hangzhou, China
| | - Haibin Dai
- Department of Pharmacy, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
- *Correspondence: Haibin Dai,
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Zhu M, Liu N, Lin J, Wang J, Lai H, Liu Y. HDAC7 inhibits cell proliferation via NudCD1/GGH axis in triple-negative breast cancer. Oncol Lett 2022; 25:33. [PMID: 36589669 PMCID: PMC9773322 DOI: 10.3892/ol.2022.13619] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 11/07/2022] [Indexed: 12/12/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is the most malignant subtype of breast cancer. In the absence of effective molecular markers for TNBC, there is an urgent clinical need for promising therapeutic target for TNBC. Histone deacetylases (HDACs), key regulators for chromatin remodeling and gene expression, have been suggested to play critical roles in cancer development. However, little is known ~the functions and implications of HDACs in TNBC treatment in the future. By analyzing the expression and prognostic significance of HDAC family members in TNBC through TCGA and METABRIC databases, HDAC7 was found to be downregulated in TNBC samples and the survival of patients with lower expression of HDAC7 was shorter. Furthermore, HDAC7 was negatively associated with NudC domain containing 1 (NudCD1) and γ-glutamyl hydrolase (GGH). Loss of NudCD1 or GGH predicted improved overall survival time (OS) of patients with TNBC. In vitro experiments showed that silencing of HDAC7 enhanced TNBC cell proliferation, while overexpression HDAC7 inhibited TNBC cell proliferation. The results of functional experiments confirmed that HDAC7 negatively modulated GGH and NudCD1 expression. Furthermore, decrease of NudCD1 or GGH inhibited cell proliferation. Notably, the HDAC7-NudCD1/GGH axis was found to be associated with NK cell infiltration. Overall, the present study revealed a novel role of HDAC7-NudCD1/GGH axis in TNBC, which might provide a promising treatment strategy for patients with TNBC.
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Affiliation(s)
- Mengdi Zhu
- Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China
| | - Nianqiu Liu
- Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China,Department of Breast Surgery, The Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Center, Kunming, Yunnan 650000, P.R. China
| | - Jinna Lin
- Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China
| | - Jingru Wang
- Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China
| | - Hongna Lai
- Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China,Correspondence to: Dr Yujie Liu or Dr Hongna Lai, Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 33 Yingfeng Road, Haizhu, Guangzhou, Guangdong 510120, P.R. China, E-mail: , E-mail:
| | - Yujie Liu
- Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China,Correspondence to: Dr Yujie Liu or Dr Hongna Lai, Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 33 Yingfeng Road, Haizhu, Guangzhou, Guangdong 510120, P.R. China, E-mail: , E-mail:
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Singh T, Kaur P, Singh P, Singh S, Munshi A. Differential molecular mechanistic behavior of HDACs in cancer progression. MEDICAL ONCOLOGY (NORTHWOOD, LONDON, ENGLAND) 2022; 39:171. [PMID: 35972597 DOI: 10.1007/s12032-022-01770-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 06/10/2022] [Indexed: 12/13/2022]
Abstract
Genetic aberration including mutation in oncogenes and tumor suppressor genes transforms normal cells into tumor cells. Epigenetic modifications work concertedly with genetic factors in controlling cancer development. Histone acetyltransferases (HATs), histone deacetylases (HDACs), DNA methyltransferases (DNMTs) and chromatin structure modifier are prospective epigenetic regulators. Specifically, HDACs are histone modifiers regulating the expression of genes implicated in cell survival, growth, apoptosis, and metabolism. The majority of HDACs are highly upregulated in cancer, whereas some have a varied function and expression in cancer progression. Distinct HDACs have a positive and negative role in controlling cancer progression. HDACs are also significantly involved in tumor cells acquiring metastatic and angiogenic potential in order to withstand the anti-tumor microenvironment. HDACs' role in modulating metabolic genes has also been associated with tumor development and survival. This review highlights and discusses the molecular mechanisms of HDACs by which they regulate cell survival, apoptosis, metastasis, invasion, stemness potential, angiogenesis, and epithelial to mesenchymal transitions (EMT) in tumor cells. HDACs are the potential target for anti-cancer drug development and various inhibitors have been developed and FDA approved for a variety of cancers. The primary HDAC inhibitors with proven anti-cancer efficacy have also been highlighted in this review.
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Affiliation(s)
- Tashvinder Singh
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda, 151401, India
| | - Prabhsimran Kaur
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda, 151401, India
| | | | - Sandeep Singh
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda, 151401, India.
| | - Anjana Munshi
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda, 151401, India.
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10
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Anti-Proliferative, Anti-Angiogenic and Safety Profiles of Novel HDAC Inhibitors for the Treatment of Metastatic Castration-Resistant Prostate Cancer. Pharmaceuticals (Basel) 2021; 14:ph14101020. [PMID: 34681244 PMCID: PMC8540814 DOI: 10.3390/ph14101020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/24/2021] [Accepted: 09/24/2021] [Indexed: 12/13/2022] Open
Abstract
Metastatic castration-resistant prostate cancer (CRPC) has a five-year survival rate of 28%. As histone deacetylases (HDACs) are overexpressed in CRPC, the HDAC inhibitor suberoylanilide hydroxamic acid (SAHA) was trialled in CRPC patients but found to be toxic and inefficacious. Previously, we showed that novel HDAC inhibitors (Jazz90 (N1-hydroxy-N8-(4-(pyridine-2-carbothioamido)phenyl)octanediamide) and Jazz167 ([chlorido(η5-pentamethylcyclopentadieny[1–4](N1-hydroxy-N8-(4-(pyridine-2-carbothioamido-κ2N,S)phenyl)octanediamide)rhodium(III)] chloride) had a higher cancer-to-normal-cell selectivity and superior anti-angiogenic effects in CRPC (PC3) cells than SAHA. Thus, this study aimed to further investigate the efficacy and toxicity of these compounds. HUVEC tube formation assays revealed that Jazz90 and Jazz167 significantly reduced meshes and segment lengths in the range of 55–88 and 43–64%, respectively. However, Jazz90 and Jazz167 did not affect the expression of epithelial-to-mesenchymal transitioning markers E-cadherin and vimentin. Jazz90 and Jazz167 significantly inhibited the growth of PC3 and DU145 spheroids and reduced PC3 spheroid branching. Jazz90 and Jazz167 (25, 50 and 75 mg/kg/day orally for 21 days) were non-toxic in male BALB/c mice. The efficacy and safety of these compounds demonstrate their potential for further in vivo studies in CRPC models.
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11
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Fang Z, Wang X, Sun X, Hu W, Miao QR. The Role of Histone Protein Acetylation in Regulating Endothelial Function. Front Cell Dev Biol 2021; 9:672447. [PMID: 33996829 PMCID: PMC8113824 DOI: 10.3389/fcell.2021.672447] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 04/06/2021] [Indexed: 12/16/2022] Open
Abstract
Endothelial cell (EC), consisting of the innermost cellular layer of all types of vessels, is not only a barrier composer but also performing multiple functions in physiological processes. It actively controls the vascular tone and the extravasation of water, solutes, and macromolecules; modulates circulating immune cells as well as platelet and leukocyte recruitment/adhesion and activation. In addition, EC also tightly keeps coagulation/fibrinolysis balance and plays a major role in angiogenesis. Therefore, endothelial dysfunction contributes to the pathogenesis of many diseases. Growing pieces of evidence suggest that histone protein acetylation, an epigenetic mark, is altered in ECs under different conditions, and the acetylation status change at different lysine sites on histone protein plays a key role in endothelial dysfunction and involved in hyperglycemia, hypertension, inflammatory disease, cancer and so on. In this review, we highlight the importance of histone acetylation in regulating endothelial functions and discuss the roles of histone acetylation across the transcriptional unit of protein-coding genes in ECs under different disease-related pathophysiological processes. Since histone acetylation changes are conserved and reversible, the knowledge of histone acetylation in endothelial function regulation could provide insights to develop epigenetic interventions in preventing or treating endothelial dysfunction-related diseases.
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Affiliation(s)
- Zhi Fang
- Department of Foundations of Medicine, New York University Long Island School of Medicine, Mineola, NY, United States
- Department of Neurology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Xiang Wang
- Department of Foundations of Medicine, New York University Long Island School of Medicine, Mineola, NY, United States
| | - Xiaoran Sun
- Department of Foundations of Medicine, New York University Long Island School of Medicine, Mineola, NY, United States
| | - Wenquan Hu
- Department of Foundations of Medicine, New York University Long Island School of Medicine, Mineola, NY, United States
| | - Qing R. Miao
- Department of Foundations of Medicine, New York University Long Island School of Medicine, Mineola, NY, United States
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12
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Hanif M, Arshad J, Astin JW, Rana Z, Zafar A, Movassaghi S, Leung E, Patel K, Söhnel T, Reynisson J, Sarojini V, Rosengren RJ, Jamieson SMF, Hartinger CG. A Multitargeted Approach: Organorhodium Anticancer Agent Based on Vorinostat as a Potent Histone Deacetylase Inhibitor. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005758] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Muhammad Hanif
- School of Chemical Sciences University of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Jahanzaib Arshad
- School of Chemical Sciences University of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Jonathan W. Astin
- School of Medical Sciences University of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Zohaib Rana
- Department of Pharmacology and Toxicology University of Otago Dunedin 9016 New Zealand
| | - Ayesha Zafar
- School of Chemical Sciences University of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Sanam Movassaghi
- School of Chemical Sciences University of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Euphemia Leung
- Auckland Cancer Society Research Centre University of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Kamal Patel
- School of Chemical Sciences University of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Tilo Söhnel
- School of Chemical Sciences University of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Jóhannes Reynisson
- School of Pharmacy and Bioengineering Keele University Staffordshire ST5 5BG UK
| | - Vijayalekshmi Sarojini
- School of Chemical Sciences University of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Rhonda J. Rosengren
- Department of Pharmacology and Toxicology University of Otago Dunedin 9016 New Zealand
| | - Stephen M. F. Jamieson
- Auckland Cancer Society Research Centre University of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Christian G. Hartinger
- School of Chemical Sciences University of Auckland Private Bag 92019 Auckland 1142 New Zealand
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13
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Bondareva O, Sheikh BN. Vascular Homeostasis and Inflammation in Health and Disease-Lessons from Single Cell Technologies. Int J Mol Sci 2020; 21:E4688. [PMID: 32630148 PMCID: PMC7369864 DOI: 10.3390/ijms21134688] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 06/23/2020] [Accepted: 06/30/2020] [Indexed: 02/07/2023] Open
Abstract
The vascular system is critical infrastructure that transports oxygen and nutrients around the body, and dynamically adapts its function to an array of environmental changes. To fulfil the demands of diverse organs, each with unique functions and requirements, the vascular system displays vast regional heterogeneity as well as specialized cell types. Our understanding of the heterogeneity of vascular cells and the molecular mechanisms that regulate their function is beginning to benefit greatly from the rapid development of single cell technologies. Recent studies have started to analyze and map vascular beds in a range of organs in healthy and diseased states at single cell resolution. The current review focuses on recent biological insights on the vascular system garnered from single cell analyses. We cover the themes of vascular heterogeneity, phenotypic plasticity of vascular cells in pathologies such as atherosclerosis and cardiovascular disease, as well as the contribution of defective microvasculature to the development of neurodegenerative disorders such as Alzheimer's disease. Further adaptation of single cell technologies to study the vascular system will be pivotal in uncovering the mechanisms that drive the array of diseases underpinned by vascular dysfunction.
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Affiliation(s)
- Olga Bondareva
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Philipp-Rosenthal-Str. 27, 04103 Leipzig, Germany
| | - Bilal N. Sheikh
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Philipp-Rosenthal-Str. 27, 04103 Leipzig, Germany
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14
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Hanif M, Arshad J, Astin JW, Rana Z, Zafar A, Movassaghi S, Leung E, Patel K, Söhnel T, Reynisson J, Sarojini V, Rosengren RJ, Jamieson SMF, Hartinger CG. A Multitargeted Approach: Organorhodium Anticancer Agent Based on Vorinostat as a Potent Histone Deacetylase Inhibitor. Angew Chem Int Ed Engl 2020; 59:14609-14614. [PMID: 32431061 DOI: 10.1002/anie.202005758] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Indexed: 12/22/2022]
Abstract
The combination of more than one bioactive moiety in a multitargeted anticancer agent may result in synergistic activity of its components. Using this concept, bioorganometallic compounds were designed to feature a metal center, a 2-pyridinecarbothioamide (PCA), and a hydroxamic acid, which is found in the anticancer drug vorinostat (SAHA). The organometallics showed inhibitory activity in the nanomolar range against histone deacetylases (HDACs) as the key target for SAHA. In particular, the Rh complex was a potent inhibitor of HDAC6 over HDAC1 and HDAC8. Whereas this complex was highly cytotoxic in human cancer cells, it showed low toxicity in hemolysis studies and zebrafish, demonstrating the role of the metal center. For this complex a slightly reduced expression of vascular endothelial growth factor receptor 2 (VEGFR2) was established, which was upregulated by SAHA. This finding indicates that the new organometallics display different modes of action than their bioactive components.
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Affiliation(s)
- Muhammad Hanif
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Jahanzaib Arshad
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Jonathan W Astin
- School of Medical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Zohaib Rana
- Department of Pharmacology and Toxicology, University of Otago, Dunedin, 9016, New Zealand
| | - Ayesha Zafar
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Sanam Movassaghi
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Euphemia Leung
- Auckland Cancer Society Research Centre, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Kamal Patel
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Tilo Söhnel
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Jóhannes Reynisson
- School of Pharmacy and Bioengineering, Keele University, Staffordshire, ST5 5BG, UK
| | - Vijayalekshmi Sarojini
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Rhonda J Rosengren
- Department of Pharmacology and Toxicology, University of Otago, Dunedin, 9016, New Zealand
| | - Stephen M F Jamieson
- Auckland Cancer Society Research Centre, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Christian G Hartinger
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
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15
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Saygin D, Tabib T, Bittar HET, Valenzi E, Sembrat J, Chan SY, Rojas M, Lafyatis R. Transcriptional profiling of lung cell populations in idiopathic pulmonary arterial hypertension. Pulm Circ 2020; 10:10.1177_2045894020908782. [PMID: 32166015 PMCID: PMC7052475 DOI: 10.1177/2045894020908782] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 01/29/2020] [Indexed: 12/13/2022] Open
Abstract
Despite recent improvements in management of idiopathic pulmonary arterial
hypertension, mortality remains high. Understanding the alterations in the
transcriptome–phenotype of the key lung cells involved could provide insight
into the drivers of pathogenesis. In this study, we examined differential gene
expression of cell types implicated in idiopathic pulmonary arterial
hypertension from lung explants of patients with idiopathic pulmonary arterial
hypertension compared to control lungs. After tissue digestion, we analyzed all
cells from three idiopathic pulmonary arterial hypertension and six control
lungs using droplet-based single cell RNA-sequencing. After dimensional
reduction by t-stochastic neighbor embedding, we compared the transcriptomes of
endothelial cells, pericyte/smooth muscle cells, fibroblasts, and macrophage
clusters, examining differential gene expression and pathways implicated by
analysis of Gene Ontology Enrichment. We found that endothelial cells and
pericyte/smooth muscle cells had the most differentially expressed gene profile
compared to other cell types. Top differentially upregulated genes in
endothelial cells included novel genes: ROBO4, APCDD1, NDST1, MMRN2,
NOTCH4, and DOCK6, as well as previously reported
genes: ENG, ORAI2, TFDP1, KDR, AMOTL2, PDGFB, FGFR1, EDN1, and
NOTCH1. Several transcription factors were also found to be
upregulated in idiopathic pulmonary arterial hypertension endothelial cells
including SOX18, STRA13, LYL1, and ELK, which
have known roles in regulating endothelial cell phenotype. In particular,
SOX18 was implicated through bioinformatics analyses in
regulating the idiopathic pulmonary arterial hypertension endothelial cell
transcriptome. Furthermore, idiopathic pulmonary arterial hypertension
endothelial cells upregulated expression of FAM60A and
HDAC7, potentially affecting epigenetic changes in
idiopathic pulmonary arterial hypertension endothelial cells. Pericyte/smooth
muscle cells expressed genes implicated in regulation of cellular apoptosis and
extracellular matrix organization, and several ligands for genes showing
increased expression in endothelial cells. In conclusion, our study represents
the first detailed look at the transcriptomic landscape across idiopathic
pulmonary arterial hypertension lung cells and provides robust insight into
alterations that occur in vivo in idiopathic pulmonary arterial hypertension
lungs.
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Affiliation(s)
- Didem Saygin
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Tracy Tabib
- Division of Rheumatology, Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Humberto E T Bittar
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Eleanor Valenzi
- Division of Cardiology, Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - John Sembrat
- Division of Cardiology, Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Stephen Y Chan
- Division of Cardiology, Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Mauricio Rojas
- Division of Cardiology, Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Robert Lafyatis
- Division of Rheumatology, Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
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16
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Understanding Failure and Improving Treatment Using HDAC Inhibitors for Prostate Cancer. Biomedicines 2020; 8:biomedicines8020022. [PMID: 32019149 PMCID: PMC7168248 DOI: 10.3390/biomedicines8020022] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/1970] [Accepted: 01/27/2020] [Indexed: 12/12/2022] Open
Abstract
Novel treatment regimens are required for castration-resistant prostate cancers (CRPCs) that become unresponsive to standard treatments, such as docetaxel and enzalutamide. Histone deacetylase (HDAC) inhibitors showed promising results in hematological malignancies, but they failed in solid tumors such as prostate cancer, despite the overexpression of HDACs in CRPC. Four HDAC inhibitors, vorinostat, pracinostat, panobinostat and romidepsin, underwent phase II clinical trials for prostate cancers; however, phase III trials were not recommended due to a majority of patients exhibiting either toxicity or disease progression. In this review, the pharmacodynamic reasons for the failure of HDAC inhibitors were assessed and placed in the context of the advancements in the understanding of CRPCs, HDACs and resistance mechanisms. The review focuses on three themes: evolution of androgen receptor-negative prostate cancers, development of resistance mechanisms and differential effects of HDACs. In conclusion, advancements can be made in this field by characterizing HDACs in prostate tumors more extensively, as this will allow more specific drugs catering to the specific HDAC subtypes to be designed.
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17
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Benz PM, Ding Y, Stingl H, Loot AE, Zink J, Wittig I, Popp R, Fleming I. AKAP12 deficiency impairs VEGF-induced endothelial cell migration and sprouting. Acta Physiol (Oxf) 2020; 228:e13325. [PMID: 31162891 PMCID: PMC6916389 DOI: 10.1111/apha.13325] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 05/31/2019] [Accepted: 05/31/2019] [Indexed: 12/12/2022]
Abstract
Aim Protein kinase (PK) A anchoring protein (AKAP) 12 is a scaffolding protein that anchors PKA to compartmentalize cyclic AMP signalling. This study assessed the consequences of the downregulation or deletion of AKAP12 on endothelial cell migration and angiogenesis. Methods The consequences of siRNA‐mediated downregulation AKAP12 were studied in primary cultures of human endothelial cells as well as in endothelial cells and retinas from wild‐type versus AKAP12−/− mice. Molecular interactions were investigated using a combination of immunoprecipitation and mass spectrometry. Results AKAP12 was expressed at low levels in confluent endothelial cells but its expression was increased in actively migrating cells, where it localized to lamellipodia. In the postnatal retina, AKAP12 was expressed by actively migrating tip cells at the angiogenic front, and its deletion resulted in defective extension of the vascular plexus. In migrating endothelial cells, AKAP12 was co‐localized with the PKA type II‐α regulatory subunit as well as multiple key regulators of actin dynamics and actin filament‐based movement; including components of the Arp2/3 complex and the vasodilator‐stimulated phosphoprotein (VASP). Fitting with the evidence of a physical VASP/AKAP12/PKA complex, it was possible to demonstrate that the VEGF‐stimulated and PKA‐dependent phosphorylation of VASP was dependent on AKAP12. Indeed, AKAP12 colocalized with phospho‐Ser157 VASP at the leading edge of migrating endothelial cells. Conclusion The results suggest that compartmentalized AKAP12/PKA signalling mediates VASP phosphorylation at the leading edge of migrating endothelial cells to translate angiogenic stimuli into altered actin dynamics and cell movement.
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Affiliation(s)
- Peter M. Benz
- Institute for Vascular Signalling, Centre for Molecular Medicine Goethe University Frankfurt am Main Germany
- German Center of Cardiovascular Research (DZHK), Partner site RheinMain Frankfurt am Main Germany
| | - Yindi Ding
- Institute for Vascular Signalling, Centre for Molecular Medicine Goethe University Frankfurt am Main Germany
- German Center of Cardiovascular Research (DZHK), Partner site RheinMain Frankfurt am Main Germany
| | - Heike Stingl
- Institute for Vascular Signalling, Centre for Molecular Medicine Goethe University Frankfurt am Main Germany
- German Center of Cardiovascular Research (DZHK), Partner site RheinMain Frankfurt am Main Germany
| | - Annemarieke E. Loot
- Institute for Vascular Signalling, Centre for Molecular Medicine Goethe University Frankfurt am Main Germany
| | - Joana Zink
- Institute for Vascular Signalling, Centre for Molecular Medicine Goethe University Frankfurt am Main Germany
- German Center of Cardiovascular Research (DZHK), Partner site RheinMain Frankfurt am Main Germany
| | - Ilka Wittig
- German Center of Cardiovascular Research (DZHK), Partner site RheinMain Frankfurt am Main Germany
- Functional Proteomics, SFB 815 Core Unit, Faculty of Medicine Goethe University Frankfurt am Main Germany
| | - Rüdiger Popp
- Institute for Vascular Signalling, Centre for Molecular Medicine Goethe University Frankfurt am Main Germany
- German Center of Cardiovascular Research (DZHK), Partner site RheinMain Frankfurt am Main Germany
| | - Ingrid Fleming
- Institute for Vascular Signalling, Centre for Molecular Medicine Goethe University Frankfurt am Main Germany
- German Center of Cardiovascular Research (DZHK), Partner site RheinMain Frankfurt am Main Germany
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18
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Targeting the Cancer Epigenome with Histone Deacetylase Inhibitors in Osteosarcoma. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1258:55-75. [PMID: 32767234 DOI: 10.1007/978-3-030-43085-6_4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Epigenetic deregulation is an emerging hallmark of cancer that enables tumor cells to escape surveillance by tumor suppressors and ultimately progress. The structure of the epigenome consists of covalent modifications of chromatin components, including acetylation by histone acetyltransferases (HATs) and deacetylation by histone deacetylases (HDACs). Targeting these enzymes with inhibitors to restore epigenetic homeostasis has been explored for many cancers. Osteosarcoma, an aggressive bone malignancy that primarily affects children and young adults, is notable for widespread genetic and epigenetic instability. This may explain why therapy directed at unique molecular pathways has failed to substantially improve outcomes in osteosarcoma over the past four decades. In this review, we discuss the potential of targeting the cancer epigenome, with a focus on histone deacetylase inhibitors (HDACi) for osteosarcoma. We additionally highlight the safety and tolerance of HDACi, combination chemotherapy with HDACi, and the ongoing challenges in the development of these agents.
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19
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V Subramaniam A, Yehya AHS, Cheng WK, Wang X, Oon CE. Epigenetics: The master control of endothelial cell fate in cancer. Life Sci 2019; 232:116652. [PMID: 31302197 DOI: 10.1016/j.lfs.2019.116652] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 07/10/2019] [Accepted: 07/10/2019] [Indexed: 01/07/2023]
Abstract
The development of new blood vessels from pre-existing vasculature is called angiogenesis. The growth of tumors depends on a network of supplying vessels that provide them with oxygen and nutrients. Pro-angiogenic factors that are secreted by tumors will trigger the sprouting of nearby existing blood vessels towards themselves and therefore researchers have developed targeted therapy towards these pro-angiogenic proteins to inhibit angiogenesis. However, certain pro-angiogenic proteins tend to bypass the inhibition. Thus, instead of targeting these expressed proteins, research towards angiogenesis inhibition had been focused on a deeper scale, epigenetic modifications. Epigenetic regulatory mechanisms are a heritable change in a sequence of stable but reversible gene function modification yet do not affect the DNA primary sequence directly. Methylation of DNA, modification of histone and silencing of micro-RNA (miRNA)-associated gene are currently considered to initiate and sustain epigenetic changes. Recent findings on the subject matter have provided an insight into the mechanism of epigenetic modifications, thus this review aims to present an update on the latest studies.
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Affiliation(s)
- Ayappa V Subramaniam
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800, USM, Pulau Pinang, Malaysia
| | - Ashwaq Hamid Salem Yehya
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800, USM, Pulau Pinang, Malaysia
| | - Wei Kang Cheng
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800, USM, Pulau Pinang, Malaysia.
| | - Xiaomeng Wang
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 639798, Singapore; Institute of Molecular and Cell Biology, Agency for Science, Technology, and Research (A*STAR), Proteos, Singapore 138632, Singapore; Department of Cell Biology, Institute of Ophthalmology, University College London, Gower Street, London, WC1E 6BT, United Kingdom.
| | - Chern Ein Oon
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800, USM, Pulau Pinang, Malaysia.
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20
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Molecular imaging HDACs class IIa expression-activity and pharmacologic inhibition in intracerebral glioma models in rats using PET/CT/(MRI) with [ 18F]TFAHA. Sci Rep 2019; 9:3595. [PMID: 30837601 PMCID: PMC6401080 DOI: 10.1038/s41598-019-40054-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 02/08/2019] [Indexed: 12/20/2022] Open
Abstract
HDAC class IIa enzymes (HDAC4, 5, 7, 9) are important for glioma progression, invasion, responses to TMZ and radiotherapy, and prognosis. In this study, we demonstrated the efficacy of PET/CT/(MRI) with [18F]TFAHA for non-invasive and quantitative imaging of HDAC class IIa expression-activity in intracerebral 9L and U87-MG gliomas in rats. Increased accumulation of [18F]TFAHA in 9L and U87-MG tumors was observed at 20 min post radiotracer administration with SUV of 1.45 ± 0.05 and 1.08 ± 0.05, respectively, and tumor-to-cortex SUV ratios of 1.74 ± 0.07 and 1.44 ± 0.03, respectively. [18F]TFAHA accumulation was also observed in normal brain structures known to overexpress HDACs class IIa: hippocampus, n.accumbens, PAG, and cerebellum. These results were confirmed by immunohistochemical staining of brain tissue sections revealing the upregulation of HDACs 4, 5, and 9, and HIF-1α, hypoacetylation of H2AK5ac, H2BK5ac, H3K9ac, H4K8ac, and downregulation of KLF4. Significant reduction in [18F]TFAHA accumulation in 9L tumors was observed after administration of HDACs class IIa specific inhibitor MC1568, but not the SIRT1 specific inhibitor EX-527. Thus, PET/CT/(MRI) with [18F]TFAHA can facilitate studies to elucidate the roles of HDAC class IIa enzymes in gliomagenesis and progression and to optimize therapeutic doses of novel HDACs class IIa inhibitors in gliomas.
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21
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He Q, Liu X, Zhong Y, Xu SS, Zhang ZM, Tang LL, Zhang LY, Du LZ. Arginine bioavailability and endothelin-1 system in the regulation of vascular function of umbilical vein endothelial cells from intrauterine growth restricted newborns. Nutr Metab Cardiovasc Dis 2018; 28:1285-1295. [PMID: 30392707 DOI: 10.1016/j.numecd.2018.09.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 09/06/2018] [Accepted: 09/13/2018] [Indexed: 01/02/2023]
Abstract
BACKGROUND AND AIMS Intrauterine growth restriction (IUGR) is a major risk factor for perinatal morbidity and mortality, leading to long-term adverse cardiovascular outcomes. The present study aimed to investigate the potential mechanisms in IUGR-associated vascular endothelial dysfunction. METHODS AND RESULTS Human umbilical vein endothelial cells (HUVECs) were derived from IUGR or normal newborns. We found that the proliferation of IUGR-derived HUVECs was accelerated compared to those from normal subjects. Gene profiles related to vascular function including vasomotion, oxidative stress, and angiogenesis were dysregulated in IUGR-HUVECs. Compared with HUVECs from normal newborns, nitric oxide (NO) production was reduced, with imbalance between endothelial nitric oxide synthase (eNOS) and arginase-2 (Arg-2) in IUGR. Meanwhile, intracellular asymmetric dimethylarginine (ADMA) level was elevated with diminished dimethylarginine dimethylaminohydrolase 1 (DDAH1) expression in IUGR-HUVECs. Furthermore, endothelin-1 (ET-1) and hypoxia-inducible factor 1α (HIF-1α) expression were increased, and endothelin receptor type-B (ETBR) was reduced in the IUGR group. IUGR-HUVECs exposed to hypoxia increased the ratio of ADMA to l-arginine, HIF-1α and protein arginine methyltransferase 1 (PRMT1) expression compared to controls. CONCLUSIONS The present study demonstrated that the reduction of NO bioavailability and release results from elevated Arg-2, accumulation of intracellular ADMA, and imbalance of ET-1 and ETBR, further leading to IUGR-associated vascular endothelial dysfunction. Our study provides novel evidence on the mechanism underlying fetal programming associated with IUGR, which will serve as potential therapeutic targets in the prevention of adverse cardiovascular consequences in adulthood.
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Affiliation(s)
- Q He
- Department of Neonatology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, 310052, Zhejiang Province, China
| | - X Liu
- Department of Neonatology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, 310052, Zhejiang Province, China
| | - Y Zhong
- Department of Neonatology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, 310052, Zhejiang Province, China
| | - S S Xu
- Department of Neonatology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, 310052, Zhejiang Province, China
| | - Z M Zhang
- Department of Neonatology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, 310052, Zhejiang Province, China
| | - L L Tang
- Department of Neonatology, Shanghai Children's Medical Center, Shanghai, 200127, China
| | - L Y Zhang
- Fujian University of Medicine, NICU, Fuzhou Children's Hospital of Fujian Province, Fuzhou, 350005, Fujian Province, China
| | - L Z Du
- Department of Neonatology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, 310052, Zhejiang Province, China.
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22
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Wei Y, Zhou F, Zhou H, Huang J, Yu D, Wu G. Endothelial progenitor cells contribute to neovascularization of non-small cell lung cancer via histone deacetylase 7-mediated cytoskeleton regulation and angiogenic genes transcription. Int J Cancer 2018; 143:657-667. [PMID: 29490434 DOI: 10.1002/ijc.31349] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 01/26/2018] [Accepted: 02/15/2018] [Indexed: 12/19/2022]
Abstract
To supply tumor tissues with nutrients and oxygen, endothelial progenitor cells (EPCs) home to tumor sites and contribute to neovascularization. Although the precise mechanism of EPCs-induced neovascularization remains poorly understood in non-small cell lung cancer (NSCLC), histone deacetylase 7 (HDAC7) is considered as a critical regulator. To explore the function of HDAC7 in neovascularization induced by EPCs, tube formation assay, immunofluorescence, microarray, Western blot analysis and animal models were performed. In vitro, HDAC7 abrogation led to the activation of Rho-associated coiled-coil containing protein kinase/myosin light chain 2 pathway concomitant with ERK dephosphorylation, causing the instability of cytoskeleton and collapse of tube formation. In vivo, absence of HDAC7 impaired the vascular lumen integrity and decreased the functional blood perfusion, inhibiting the growth of tumor. At the level of transcription, HDAC7 silencing upregulated antiangiogenic genes and suppressed proangiogenic genes collectively, turning off the angiogenic switch during vessel formation. Taken together, HDAC7 plays a dual role in maintaining the structural and nonstructural functions of EPCs. Our work demonstrates the molecular mechanism by which HDAC7 contributes to the angiogenic property of EPCs and provides a rational basis for specific targeting of antiangiogenic strategies in lung cancer.
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Affiliation(s)
- Ye Wei
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fangzheng Zhou
- Department of Oncology, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei, China
| | - Haibo Zhou
- The First College of Clinical Medical Science, China Three Gorges University and Department of Oncology, Yichang Central People's Hospital, Yichang, Hubei, People's Republic of China
| | - Jing Huang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dandan Yu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Gang Wu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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23
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He P, Li K, Li SB, Hu TT, Guan M, Sun FY, Liu WW. Upregulation of AKAP12 with HDAC3 depletion suppresses the progression and migration of colorectal cancer. Int J Oncol 2018; 52:1305-1316. [PMID: 29484387 DOI: 10.3892/ijo.2018.4284] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 02/16/2018] [Indexed: 11/05/2022] Open
Abstract
A-kinase anchor protein 12 (AKAP12; also known as Gravin) functions as a tumor suppressor in several human primary cancers. However, the potential correlation between histone deacetylase 3 (HDAC3) and AKAP12 and the underlying mechanisms remain unclear. Thus, in this study, in an aim to shed light into this matter, the expression levels of HDAC3 and AKAP12 in 96 colorectal cancer (CRC) and adjacent non-cancerous tissues, as well as in SW480 cells were examined by immunohistochemical, RT-qPCR and western blot analyses. The effects of HDAC3 and AKAP12 on the proliferation, apoptosis and metastasis of CRC cells were examined by cell counting kit-8 (CCK-8) assay, colony formation assays, flow cytometry, cell cycle analysis and Transwell assays. The results revealed that the reduction or loss of AKAP12 expression was detected in 69 (71.8%) of the 96 tissue specimens, whereas HDAC3 was upregulated in 50 (52.1%) of the 96 tumor tissue specimens. AKAP12 expression was markedly increased upon treatment with the HDAC3 inhibitors, trichostatin A (TSA) and RGFP966, at both the mRNA and protein level. Mechanistically, the direct binding of HDAC3 within the intron-1 region of AKAP12 was identified to be indispensable for the inhibition of AKAP12 expression. Moreover, the proliferation, colony-forming ability, cell cycle progression and the migration of the CRC cells were found to be promoted in response to AKAP12 silencing or AKAP12/HDAC3 co-silencing, whereas transfection with si-HDAC3 yielded opposite effects. Apart from the elevated expression of the anti-apoptotic protein, Bcl-2, after AKAP12 knockdown, the increased activity of PI3K/AKT signaling was found to be indispensable for AKAP12-mediated colony formation and migration. On the whole, these findings indicate that AKAP12 may be a potential prognostic predictor and therapeutic target for the treatment of CRC in combination with HDAC3.
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Affiliation(s)
- Ping He
- Central Laboratory, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200070, P.R. China
| | - Ke Li
- Central Laboratory, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200070, P.R. China
| | - Shi-Bao Li
- Department of Laboratory Medicine, The Affiliated Hospital of Xuzhou Medical College, Xuzhou, Jiangsu 221100, P.R. China
| | - Ting-Ting Hu
- Department of Laboratory Medicine, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, P.R. China
| | - Ming Guan
- Department of Laboratory Medicine, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, P.R. China
| | - Fen-Yong Sun
- Department of Laboratory Medicine, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200070, P.R. China
| | - Wei-Wei Liu
- Central Laboratory, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200070, P.R. China
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24
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Chen YJ, Chang WA, Hsu YL, Chen CH, Kuo PL. Deduction of Novel Genes Potentially Involved in Osteoblasts of Rheumatoid Arthritis Using Next-Generation Sequencing and Bioinformatic Approaches. Int J Mol Sci 2017; 18:ijms18112396. [PMID: 29137139 PMCID: PMC5713364 DOI: 10.3390/ijms18112396] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 11/01/2017] [Accepted: 11/06/2017] [Indexed: 12/24/2022] Open
Abstract
The role of osteoblasts in peri-articular bone loss and bone erosion in rheumatoid arthritis (RA) has gained much attention, and microRNAs are hypothesized to play critical roles in the regulation of osteoblast function in RA. The aim of this study is to explore novel microRNAs differentially expressed in RA osteoblasts and to identify genes potentially involved in the dysregulated bone homeostasis in RA. RNAs were extracted from cultured normal and RA osteoblasts for sequencing. Using the next generation sequencing and bioinformatics approaches, we identified 35 differentially expressed microRNAs and 13 differentially expressed genes with potential microRNA–mRNA interactions in RA osteoblasts. The 13 candidate genes were involved mainly in cell–matrix adhesion, as classified by the Gene Ontology. Two genes of interest identified from RA osteoblasts, A-kinase anchoring protein 12 (AKAP12) and leucin rich repeat containing 15 (LRRC15), were found to express more consistently in the related RA synovial tissue arrays in the Gene Expression Omnibus database, with the predicted interactions with miR-183-5p and miR-146a-5p, respectively. The Ingenuity Pathway Analysis identified AKAP12 as one of the genes involved in protein kinase A signaling and the function of chemotaxis, interconnecting with molecules related to neovascularization. The findings indicate new candidate genes as the potential indicators in evaluating therapies targeting chemotaxis and neovascularization to control joint destruction in RA.
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Affiliation(s)
- Yi-Jen Chen
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Physical Medicine and Rehabilitation, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan.
- Department of Physical Medicine and Rehabilitation, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung 801, Taiwan.
| | - Wei-An Chang
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Division of Pulmonary and Critical Care Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan.
| | - Ya-Ling Hsu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Chia-Hsin Chen
- Department of Physical Medicine and Rehabilitation, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan.
- Department of Physical Medicine and Rehabilitation, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung 801, Taiwan.
- Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Po-Lin Kuo
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung 804, Taiwan.
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25
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Lei Y, Liu L, Zhang S, Guo S, Li X, Wang J, Su B, Fang Y, Chen X, Ke H, Tao W. Hdac7 promotes lung tumorigenesis by inhibiting Stat3 activation. Mol Cancer 2017; 16:170. [PMID: 29126425 PMCID: PMC5681774 DOI: 10.1186/s12943-017-0736-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Accepted: 10/20/2017] [Indexed: 11/29/2022] Open
Abstract
Background Lung cancer is the leading cause of cancer death worldwide. However, the molecular mechanisms underlying lung cancer development have not been fully understood. The functions of histone deacetylases (HDACs), a class of total eighteen proteins (HDAC1–11 and SIRT1–7 in mammals) that deacetylate histones and non-histone proteins, in cancers are largely unknown. Methods Hdac7+/−/K-Ras mice and HDAC7-depleted human lung cancer cell lines were used as models for studying the function of Hdac7 gene in lung cancer. Kaplan-Meier survival analysis was performed to explore the relationship between HDAC7 expression and prognosis of human lung cancers. Recombinant lentivirus-mediated in vivo gene expression or knockdown, Western blotting, and pull-down assay were applied to investigate the underlying molecular mechanism by which Hdac7 promotes lung tumorigenesis. Results The number and burden of lung tumor were dramatically reduced in Hdac7+/−/K-Ras mice compared to control K-Ras mice. Also, in Hdac7+/−/K-Ras mice, cell proliferation was significantly inhibited and apoptosis in lung tumors was greatly enhanced. Similarly, cell proliferation and anchorage-independent growth of human lung cancer cell lines expressing shHDAC7 were also significantly suppressed and apoptosis was dramatically elevated respectively. Mechanistic study revealed that Hdac7 mutation in mouse lung tumors or HDAC7 depletion in human tumor cell lines resulted in significantly enhanced acetylation and tyrosine-phosphorylation of Stat3 and HDAC7 protein directly interacted with and deacetylateed STAT3. The Hdac7 mutant-mediated inhibitory effects on lung tumorigenesis in mice and cell proliferation/soft agar colony formation of human lung cancer cell lines were respectively reversed by expressing dnStat3. Finally, the high HDAC7 mRNA level was found to be correlated with poor prognosis of human lung cancer patients. Conclusion Our study suggests that Hdac7 promotes lung tumorigenesis by inhibiting Stat3 activation via deacetylating Stat3 and may shed a light on the design of new therapeutic strategies for human lung cancer. Electronic supplementary material The online version of this article (10.1186/s12943-017-0736-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yubin Lei
- Obstetrics & Gynecology Hospital and State Key Laboratory of Genetic Engineering and Institute of Developmental Biology and Molecular Medicine, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Lingling Liu
- Obstetrics & Gynecology Hospital and State Key Laboratory of Genetic Engineering and Institute of Developmental Biology and Molecular Medicine, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Shujing Zhang
- Obstetrics & Gynecology Hospital and State Key Laboratory of Genetic Engineering and Institute of Developmental Biology and Molecular Medicine, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Shicheng Guo
- MOE Key Laboratory of Contemporary Anthropology and Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Xiaoqing Li
- Obstetrics & Gynecology Hospital and State Key Laboratory of Genetic Engineering and Institute of Developmental Biology and Molecular Medicine, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Jiucun Wang
- MOE Key Laboratory of Contemporary Anthropology and Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Bo Su
- Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
| | - Yuchao Fang
- Huashan Hospital, Fudan University, Shanghai, China
| | - Xiaofeng Chen
- Huashan Hospital, Fudan University, Shanghai, China.
| | - Hengning Ke
- Cancer Research Institute, General Hospital, Ningxia Medical University, Yinchuan, China.
| | - Wufan Tao
- Obstetrics & Gynecology Hospital and State Key Laboratory of Genetic Engineering and Institute of Developmental Biology and Molecular Medicine, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China. .,Cancer Research Institute, General Hospital, Ningxia Medical University, Yinchuan, China.
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26
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Hou F, Li D, Yu H, Kong Q. The mechanism and potential targets of class II HDACs in angiogenesis. J Cell Biochem 2017; 119:2999-3006. [PMID: 29091298 DOI: 10.1002/jcb.26476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 10/31/2017] [Indexed: 12/21/2022]
Abstract
Angiogenesis refers to the new blood vessels deriving from the existing blood vessels, and it is a complex regulatory process. Angiogenesis is associated with the normal development of the body and tumor growth and migration. The imbalance of histone deacetylase, as an epigenetic modification, could induce the production of diseases, such as cancer, metabolic diseases, etc., and it also plays an important role in angiogenesis. Many researches indicate that class II HDACs nuclear shuttle and its phosphorylation are necessary for the diseases and the protection of the collective itself. This paper will make a review for the relationship between II HDACs and angiogenesis under physiological and pathologic categories, looking forward to the disease treatment in the future.
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Affiliation(s)
- Fei Hou
- Department of Basic Medical College, Jining Medical University, Jining, Shandong, China.,College of Science, Qufu Normal University, Qufu, Shandong, China
| | - Dandan Li
- Department of Basic Medical College, Jining Medical University, Jining, Shandong, China.,College of Science, Qufu Normal University, Qufu, Shandong, China
| | - Honglian Yu
- Department of Basic Medical College, Jining Medical University, Jining, Shandong, China.,Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining, Shandong, China
| | - Qingsheng Kong
- Department of Basic Medical College, Jining Medical University, Jining, Shandong, China.,Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining, Shandong, China
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27
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HDAC10 promotes angiogenesis in endothelial cells through the PTPN22/ERK axis. Oncotarget 2017; 8:61338-61349. [PMID: 28977867 PMCID: PMC5617427 DOI: 10.18632/oncotarget.18130] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 04/12/2017] [Indexed: 01/08/2023] Open
Abstract
Angiogenesis is crucially involved in many physiological and pathological processes including tumor growth, but the molecular mechanisms regulating angiogenesis are incompletely understood. In this study, we investigated the functions and mechanism of histone deacetylase 10 (HDAC10), a member of the HDAC II family, in regulation of angiogenesis. HDAC10 overexpression in human umbilical vein endothelial cells (HUVECs) promoted tube formation, whereas depletion of HDAC10 from HUVECs inhibited tube formation in vitro and in vivo. Mechanistically, HDAC10 overexpression increased extracellular-regulated kinase 1/2 (ERK1/2) activation, whereas depletion of HDAC10 inhibited ERK1/2 activation. Finally, HDAC10 promoted ERK1/2 phosphorylation by deacetylating the promoter of protein tyrosine phosphatase, non-receptor type 22 (PTPN22) and inhibiting the expression of PTPN22, which is a negative regulator of ERK phosphorylation. Collectively, our results identify HDAC10 as a key regulator of angiogenesis and reveal that HDAC10 functions in this process by binding and deacetylating the PTPN22 promoter and subsequently inhibiting PTPN22 expression, which in turn increases ERK1/2 phosphorylation. Our studies suggest that HDAC10 is a potential target for therapeutic intervention to inhibit angiogenesis and tumor growth.
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28
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Sundaram V, Choudhary MNK, Pehrsson E, Xing X, Fiore C, Pandey M, Maricque B, Udawatta M, Ngo D, Chen Y, Paguntalan A, Ray T, Hughes A, Cohen BA, Wang T. Functional cis-regulatory modules encoded by mouse-specific endogenous retrovirus. Nat Commun 2017; 8:14550. [PMID: 28348391 PMCID: PMC5379053 DOI: 10.1038/ncomms14550] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 01/11/2017] [Indexed: 01/30/2023] Open
Abstract
Cis-regulatory modules contain multiple transcription factor (TF)-binding sites and integrate the effects of each TF to control gene expression in specific cellular contexts. Transposable elements (TEs) are uniquely equipped to deposit their regulatory sequences across a genome, which could also contain cis-regulatory modules that coordinate the control of multiple genes with the same regulatory logic. We provide the first evidence of mouse-specific TEs that encode a module of TF-binding sites in mouse embryonic stem cells (ESCs). The majority (77%) of the individual TEs tested exhibited enhancer activity in mouse ESCs. By mutating individual TF-binding sites within the TE, we identified a module of TF-binding motifs that cooperatively enhanced gene expression. Interestingly, we also observed the same motif module in the in silico constructed ancestral TE that also acted cooperatively to enhance gene expression. Our results suggest that ancestral TE insertions might have brought in cis-regulatory modules into the mouse genome.
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Affiliation(s)
- Vasavi Sundaram
- Division of Biological and Biomedical Sciences, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, Missouri 63110, USA
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of Medicine, 4515 McKinley Avenue, St. Louis, Missouri 63110, USA
| | - Mayank N. K. Choudhary
- Division of Biological and Biomedical Sciences, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, Missouri 63110, USA
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of Medicine, 4515 McKinley Avenue, St. Louis, Missouri 63110, USA
| | - Erica Pehrsson
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of Medicine, 4515 McKinley Avenue, St. Louis, Missouri 63110, USA
| | - Xiaoyun Xing
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of Medicine, 4515 McKinley Avenue, St. Louis, Missouri 63110, USA
| | - Christopher Fiore
- Division of Biological and Biomedical Sciences, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, Missouri 63110, USA
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of Medicine, 4515 McKinley Avenue, St. Louis, Missouri 63110, USA
| | - Manishi Pandey
- Division of Biological and Biomedical Sciences, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, Missouri 63110, USA
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of Medicine, 4515 McKinley Avenue, St. Louis, Missouri 63110, USA
| | - Brett Maricque
- Division of Biological and Biomedical Sciences, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, Missouri 63110, USA
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of Medicine, 4515 McKinley Avenue, St. Louis, Missouri 63110, USA
| | - Methma Udawatta
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of Medicine, 4515 McKinley Avenue, St. Louis, Missouri 63110, USA
| | - Duc Ngo
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of Medicine, 4515 McKinley Avenue, St. Louis, Missouri 63110, USA
| | - Yujie Chen
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of Medicine, 4515 McKinley Avenue, St. Louis, Missouri 63110, USA
| | - Asia Paguntalan
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of Medicine, 4515 McKinley Avenue, St. Louis, Missouri 63110, USA
| | - Tammy Ray
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of Medicine, 4515 McKinley Avenue, St. Louis, Missouri 63110, USA
| | - Ava Hughes
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of Medicine, 4515 McKinley Avenue, St. Louis, Missouri 63110, USA
| | - Barak A. Cohen
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of Medicine, 4515 McKinley Avenue, St. Louis, Missouri 63110, USA
| | - Ting Wang
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of Medicine, 4515 McKinley Avenue, St. Louis, Missouri 63110, USA
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29
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Li Y, Seto E. HDACs and HDAC Inhibitors in Cancer Development and Therapy. Cold Spring Harb Perspect Med 2016; 6:cshperspect.a026831. [PMID: 27599530 DOI: 10.1101/cshperspect.a026831] [Citation(s) in RCA: 749] [Impact Index Per Article: 93.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Over the last several decades, it has become clear that epigenetic abnormalities may be one of the hallmarks of cancer. Posttranslational modifications of histones, for example, may play a crucial role in cancer development and progression by modulating gene transcription, chromatin remodeling, and nuclear architecture. Histone acetylation, a well-studied posttranslational histone modification, is controlled by the opposing activities of histone acetyltransferases (HATs) and histone deacetylases (HDACs). By removing acetyl groups, HDACs reverse chromatin acetylation and alter transcription of oncogenes and tumor suppressor genes. In addition, HDACs deacetylate numerous nonhistone cellular substrates that govern a wide array of biological processes including cancer initiation and progression. This review will discuss the role of HDACs in cancer and the therapeutic potential of HDAC inhibitors (HDACi) as emerging drugs in cancer treatment.
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Affiliation(s)
- Yixuan Li
- George Washington University Cancer Center, Department of Biochemistry and Molecular Medicine, George Washington University, Washington, DC 20037
| | - Edward Seto
- George Washington University Cancer Center, Department of Biochemistry and Molecular Medicine, George Washington University, Washington, DC 20037
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30
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Wilhelm T, Lipka DB, Witte T, Wierzbinska JA, Fluhr S, Helf M, Mücke O, Claus R, Konermann C, Nöllke P, Niemeyer CM, Flotho C, Plass C. Epigenetic silencing of AKAP12 in juvenile myelomonocytic leukemia. Epigenetics 2016; 11:110-9. [PMID: 26891149 DOI: 10.1080/15592294.2016.1145327] [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] [Indexed: 01/21/2023] Open
Abstract
A-kinase anchor protein 12 (AKAP12) is a regulator of protein kinase A and protein kinase C signaling, acting downstream of RAS. Epigenetic silencing of AKAP12 has been demonstrated in different cancer entities and this has been linked to the process of tumorigenesis. Here, we used quantitative high-resolution DNA methylation measurement by MassARRAY to investigate epigenetic regulation of all three AKAP12 promoters (i.e., α, β, and γ) within a large cohort of juvenile myelomonocytic leukemia (JMML) patient samples. The AKAP12α promoter shows DNA hypermethylation in JMML samples, which is associated with decreased AKAP12α expression. Promoter methylation of AKAP12α correlates with older age at diagnosis, elevated levels of fetal hemoglobin and poor prognosis. In silico screening for transcription factor binding motifs around the sites of most pronounced methylation changes in the AKAP12α promoter revealed highly significant scores for GATA-2/-1 sequence motifs. Both transcription factors are known to be involved in the haematopoietic differentiation process. Methylation of a reporter construct containing this region resulted in strong suppression of AKAP12 promoter activity, suggesting that DNA methylation might be involved in the aberrant silencing of the AKAP12 promoter in JMML. Exposure to DNMT- and HDAC-inhibitors reactivates AKAP12α expression in vitro, which could potentially be a mechanism underlying clinical treatment responses upon demethylating therapy. Together, these data provide evidence for epigenetic silencing of AKAP12α in JMML and further emphasize the importance of dysregulated RAS signaling in JMML pathogenesis.
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Affiliation(s)
- Thomas Wilhelm
- a Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center , Heidelberg , Germany
| | - Daniel B Lipka
- b Regulation of Cellular Differentiation Group, Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center , Heidelberg , Germany
| | - Tania Witte
- a Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center , Heidelberg , Germany
| | - Justyna A Wierzbinska
- a Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center , Heidelberg , Germany.,b Regulation of Cellular Differentiation Group, Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center , Heidelberg , Germany
| | - Silvia Fluhr
- c Department of Pediatrics and Adolescent Medicine , Division of Pediatric Hematology-Oncology, University of Freiburg Medical Center , Freiburg , Germany.,d Hermann Staudinger Graduate School, University of Freiburg , Freiburg , Germany
| | - Monika Helf
- b Regulation of Cellular Differentiation Group, Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center , Heidelberg , Germany
| | - Oliver Mücke
- a Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center , Heidelberg , Germany.,b Regulation of Cellular Differentiation Group, Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center , Heidelberg , Germany
| | - Rainer Claus
- a Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center , Heidelberg , Germany.,e Department of Medicine , Division of Hematology, Oncology and Stem Cell Transplantation, University of Freiburg Medical Center , Freiburg , Germany
| | - Carolin Konermann
- a Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center , Heidelberg , Germany
| | - Peter Nöllke
- c Department of Pediatrics and Adolescent Medicine , Division of Pediatric Hematology-Oncology, University of Freiburg Medical Center , Freiburg , Germany
| | - Charlotte M Niemeyer
- c Department of Pediatrics and Adolescent Medicine , Division of Pediatric Hematology-Oncology, University of Freiburg Medical Center , Freiburg , Germany.,f German Cancer Consortium (DKTK)
| | - Christian Flotho
- c Department of Pediatrics and Adolescent Medicine , Division of Pediatric Hematology-Oncology, University of Freiburg Medical Center , Freiburg , Germany.,f German Cancer Consortium (DKTK)
| | - Christoph Plass
- a Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center , Heidelberg , Germany.,f German Cancer Consortium (DKTK)
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31
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HDAC7 inhibition resets STAT3 tumorigenic activity in human glioblastoma independently of EGFR and PTEN: new opportunities for selected targeted therapies. Oncogene 2016; 35:4481-94. [DOI: 10.1038/onc.2015.506] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 11/12/2015] [Accepted: 12/08/2015] [Indexed: 12/22/2022]
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32
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Johnson DC, Weinhold N, Mitchell JS, Chen B, Kaiser M, Begum DB, Hillengass J, Bertsch U, Gregory WA, Cairns D, Jackson GH, Försti A, Nickel J, Hoffmann P, Nöethen MM, Stephens OW, Barlogie B, Davis FE, Hemminki K, Goldschmidt H, Houlston RS, Morgan GJ. Genome-wide association study identifies variation at 6q25.1 associated with survival in multiple myeloma. Nat Commun 2016; 7:10290. [PMID: 26743840 PMCID: PMC4729868 DOI: 10.1038/ncomms10290] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 11/25/2015] [Indexed: 01/08/2023] Open
Abstract
Survival following a diagnosis of multiple myeloma (MM) varies between patients and some of these differences may be a consequence of inherited genetic variation. In this study, to identify genetic markers associated with MM overall survival (MM-OS), we conduct a meta-analysis of four patient series of European ancestry, totalling 3,256 patients with 1,200 MM-associated deaths. Each series is genotyped for ∼600,000 single nucleotide polymorphisms across the genome; genotypes for six million common variants are imputed using 1000 Genomes Project and UK10K as the reference. The association between genotype and OS is assessed by Cox proportional hazards model adjusting for age, sex, International staging system and treatment. We identify a locus at 6q25.1 marked by rs12374648 associated with MM-OS (hazard ratio=1.34, 95% confidence interval=1.22-1.48, P=4.69 × 10(-9)). Our findings have potential clinical implications since they demonstrate that inherited genotypes can provide prognostic information in addition to conventional tumor acquired prognostic factors.
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Affiliation(s)
- David C. Johnson
- Division of Molecular Pathology, The Institute of Cancer Research, London SW7 3RP, UK
| | - Niels Weinhold
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, USA
- Department of Internal Medicine V, University of Heidelberg, 69120 Heidelberg, Germany
| | - Jonathan S. Mitchell
- Division of Genetics and Epidemiology, The Institute of Cancer Research, London SW7 3RP, UK
| | - Bowang Chen
- German Cancer Research Center, 69121 Heidelberg, Germany
| | - Martin Kaiser
- Division of Molecular Pathology, The Institute of Cancer Research, London SW7 3RP, UK
| | - Dil B. Begum
- Division of Molecular Pathology, The Institute of Cancer Research, London SW7 3RP, UK
| | - Jens Hillengass
- Department of Internal Medicine V, University of Heidelberg, 69120 Heidelberg, Germany
| | - Uta Bertsch
- Department of Internal Medicine V, University of Heidelberg, 69120 Heidelberg, Germany
| | - Walter A. Gregory
- Leeds Institute of Molecular Medicine, Section of Clinical Trials Research, University of Leeds, Leeds LS2 9PH, UK
| | - David Cairns
- Leeds Institute of Molecular Medicine, Section of Clinical Trials Research, University of Leeds, Leeds LS2 9PH, UK
| | - Graham H. Jackson
- Department of Haematology, Newcastle University, Newcastle-upon-Tyne NE1 7RU, UK
| | - Asta Försti
- German Cancer Research Center, 69121 Heidelberg, Germany
- Center for Primary Health Care Research, Lund University, 221 00 Malmö, Sweden
| | - Jolanta Nickel
- Department of Internal Medicine V, University of Heidelberg, 69120 Heidelberg, Germany
| | - Per Hoffmann
- Institute of Human Genetics, University of Bonn, D-53127 Bonn, Germany
- Division of Medical Genetics, Department of Biomedicine, University of Basel, 4031 Basel, Switzerland
| | - Markus M. Nöethen
- Institute of Human Genetics, University of Bonn, D-53127 Bonn, Germany
- Department of Genomics, Life & Brain Center, University of Bonn, D-53127 Bonn, Germany
| | - Owen W. Stephens
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, USA
| | - Bart Barlogie
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, USA
| | - Faith E. Davis
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, USA
| | - Kari Hemminki
- German Cancer Research Center, 69121 Heidelberg, Germany
- Center for Primary Health Care Research, Lund University, 221 00 Malmö, Sweden
| | - Hartmut Goldschmidt
- Department of Internal Medicine V, University of Heidelberg, 69120 Heidelberg, Germany
- National Center of Tumor Diseases, 69120 Heidelberg, Germany
| | - Richard S. Houlston
- Division of Molecular Pathology, The Institute of Cancer Research, London SW7 3RP, UK
- Division of Genetics and Epidemiology, The Institute of Cancer Research, London SW7 3RP, UK
| | - Gareth J. Morgan
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, USA
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Fraineau S, Palii CG, Allan DS, Brand M. Epigenetic regulation of endothelial-cell-mediated vascular repair. FEBS J 2015; 282:1605-29. [PMID: 25546332 DOI: 10.1111/febs.13183] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 12/17/2014] [Accepted: 12/19/2014] [Indexed: 01/16/2023]
Abstract
Maintenance of vascular integrity is essential for the prevention of vascular disease and for recovery following cardiovascular, cerebrovascular and peripheral vascular events including limb ischemia, heart attack and stroke. Endothelial stem/progenitor cells have recently gained considerable interest due to their potential use in stem cell therapies to mediate revascularization after ischemic injury. Therefore, there is an urgent need to understand fundamental mechanisms regulating vascular repair in specific cell types to develop new beneficial therapeutic interventions. In this review, we highlight recent studies demonstrating that epigenetic mechanisms (including post-translational modifications of DNA and histones as well as non-coding RNA-mediated processes) play essential roles in the regulation of endothelial stem/progenitor cell functions through modifying chromatin structure. Furthermore, we discuss the potential of using small molecules that modulate the activities of epigenetic enzymes to enhance the vascular repair function of endothelial cells and offer insight on potential strategies that may accelerate clinical applications.
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Affiliation(s)
- Sylvain Fraineau
- Sprott Center for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, Canada; Department of Cellular and Molecular Medicine, University of Ottawa, Canada; Ottawa Institute of Systems Biology, Canada
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May the remodeling of the Ca²⁺ toolkit in endothelial progenitor cells derived from cancer patients suggest alternative targets for anti-angiogenic treatment? BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2014; 1853:1958-73. [PMID: 25447551 DOI: 10.1016/j.bbamcr.2014.10.024] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 10/16/2014] [Accepted: 10/28/2014] [Indexed: 01/10/2023]
Abstract
Endothelial progenitor cells (EPCs) may be recruited from bone marrow to sustain the metastatic switch in a number of solid cancers, including breast cancer (BC) and renal cellular carcinoma (RCC). Preventing EPC mobilization causes tumor shrinkage. Novel anti-angiogenic treatments have been introduced in therapy to inhibit VEGFR-2 signaling; unfortunately, these drugs blocked tumor angiogenesis in pre-clinical murine models, but resulted far less effective in human patients. Understanding the molecular mechanisms driving EPC proliferation and tubulogenesis in cancer patients could outline novel targets for alternative anti-angiogenic treatments. Store-operated Ca²⁺ entry (SOCE) regulates the growth of human EPCs, and it is mediated by the interaction between the endoplasmic reticulum Ca²⁺-sensor, Stim1, and the plasmalemmal Ca²⁺ channels, Orai1 and TRPC1. EPCs do not belong to the neoplastic clone: thus, unlike tumor endothelium and neoplastic cells, they should not remodel their Ca²⁺ toolkit in response to tumor microenvironment. However, our recent work demonstrated that EPCs isolated from naïve RCC patients (RCC-EPCs) undergo a dramatic remodeling of their Ca²⁺ toolkit by displaying a remarkable drop in the endoplasmic reticulum Ca²⁺ content, by down-regulating the expression of inositol-1,4,5-receptors (InsP3Rs), and by up-regulating Stim1, Orai1 and TRPC1. Moreover, EPCs are dramatically less sensitive to VEGF stimulation both in terms of Ca²⁺ signaling and of gene expression when isolated from tumor patients. Conversely, the pharmacological abolition of SOCE suppresses proliferation in these cells. These results question the suitability of VEGFR-2 as a therapeutically relevant target for anti-angiogenic treatments and hint at Orai1 and TRPC1 as more promising alternatives. This article is part of a Special Issue entitled: 13th European Symposium on Calcium.
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Pannem RR, Dorn C, Hellerbrand C, Massoumi R. Cylindromatosis gene CYLD regulates hepatocyte growth factor expression in hepatic stellate cells through interaction with histone deacetylase 7. Hepatology 2014; 60:1066-81. [PMID: 24811579 DOI: 10.1002/hep.27209] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 04/29/2014] [Accepted: 05/06/2014] [Indexed: 12/20/2022]
Abstract
UNLABELLED Hepatic fibrosis is considered as a physiological wound-healing response to liver injury. The process involves several factors, such as hepatocyte growth factor (HGF), which restrains hepatic injury and facilitates reversibility of fibrotic reaction in response to an acute insult. Chronic liver injury and sustained inflammation cause progressive fibrosis and, ultimately, organ dysfunction. The mechanisms tipping the balance from restoration to progressive liver tissue scarring are not well understood. In the present study, we identify a mechanism in which the tumor-suppressor gene, cylindromatosis (CYLD), confers protection from hepatocellular injury and fibrosis. Mice lacking CYLD (CYLD-/-) were highly susceptible to hepatocellular damage, inflammation, and fibrosis and revealed significantly lower hepatic HGF levels, compared to wild-type (WT) animals. Exogenous application of HGF rescued the liver injury phenotype of CYLD-/- mice. In the absence of CYLD, gene transcription of HGF in hepatic stellate cells was repressed through binding of histone deacetylase 7 (HDAC7) to the promoter of HGF. In WT cells, CYLD removed HDAC7 from the HGF promoter and induced HGF expression. Of note, this interaction occurred independently of the deubiquitinating activity of CYLD. CONCLUSIONS Our findings highlight a novel link between CYLD and HDAC7, offering mechanistic insight into the contribution of these proteins to progression of liver disease. Thus, through regulation of HGF level, CYLD ameliorates hepatocellular damage and liver fibrogenesis.
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Affiliation(s)
- Rajeswara R Pannem
- Department of Laboratory Medicine, Medicon Village, Lund University, Lund, Sweden
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Yu D, Chen W, Ren J, Zhang T, Yang K, Wu G, Liu H. VEGF-PKD1-HDAC7 signaling promotes endothelial progenitor cell migration and tube formation. Microvasc Res 2013; 91:66-72. [PMID: 24189120 DOI: 10.1016/j.mvr.2013.10.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 10/21/2013] [Accepted: 10/24/2013] [Indexed: 01/26/2023]
Abstract
Histone acetylation/deacetylation is a key mechanism for regulating transcription, which plays an important role in the control of gene expression, tissue growth, and development. In particular, histone deacetylase 7 (HDAC7), a member of class IIa HDACs, is crucial in maintaining vascular integrity. Endothelial progenitor cells (EPCs) play an important role in angiogenesis. However, whether HDAC7 plays a role in the processes of EPCs angiogenesis remains unclear. Migration and tube formation were the two major components of EPC angiogenesis. In this study, we show for the first time that HDAC7 silencing weakened the migration and tube formation abilities of EPCs. VEGF-A induced an increase of phospho-HDAC7 and its nuclear export in a time-dependent manner, which could be partly inhibited by protein kinase D1 (PKD1) inhibitor, but not by the PI3K inhibitor or the MEK inhibitor. Our results showed that EPCs involved in the angiogenesis might be controlled by VEGF-PKD1-HDAC7 axis, which regulates the EPCs angiogenesis by PKD1, but not the ERK and PI3K pathway.
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Affiliation(s)
- Dandan Yu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Weihong Chen
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jinghua Ren
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Tao Zhang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Kunyu Yang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Gang Wu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Hongli Liu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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