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Bastedo WE, Scott RW, Arostegui M, Underhill TM. Single-cell analysis of mesenchymal cells in permeable neural vasculature reveals novel diverse subpopulations of fibroblasts. Fluids Barriers CNS 2024; 21:31. [PMID: 38575991 PMCID: PMC10996213 DOI: 10.1186/s12987-024-00535-7] [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: 07/31/2023] [Accepted: 03/25/2024] [Indexed: 04/06/2024] Open
Abstract
BACKGROUND In the choroid plexus and pituitary gland, vasculature is known to have a permeable, fenestrated phenotype which allows for the free passage of molecules in contrast to the blood brain barrier observed in the rest of the CNS. The endothelium of these compartments, along with secretory, neural-lineage cells (choroid epithelium and pituitary endocrine cells) have been studied in detail, but less attention has been given to the perivascular mesenchymal cells of these compartments. METHODS The Hic1CreERT2 Rosa26LSL-TdTomato mouse model was used in conjunction with a PdgfraH2B-EGFP mouse model to examine mesenchymal cells, which can be subdivided into Pdgfra+ fibroblasts and Pdgfra- pericytes within the choroid plexus (CP) and pituitary gland (PG), by histological, immunofluorescence staining and single-cell RNA-sequencing analyses. RESULTS We found that both CP and PG possess substantial populations of distinct Hic1+ mesenchymal cells, including an abundance of Pdgfra+ fibroblasts. Within the pituitary, we identified distinct subpopulations of Hic1+ fibroblasts in the glandular anterior pituitary and the neurosecretory posterior pituitary. We also identified multiple distinct markers of CP, PG, and the meningeal mesenchymal compartment, including alkaline phosphatase, indole-n-methyltransferase and CD34. CONCLUSIONS Novel, distinct subpopulations of mesenchymal cells can be found in permeable vascular interfaces, including the CP, PG, and meninges, and make distinct contributions to both organs through the production of structural proteins, enzymes, transporters, and trophic molecules.
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Affiliation(s)
- William E Bastedo
- Department of Cellular and Physiological Sciences, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
| | - R Wilder Scott
- Department of Cellular and Physiological Sciences, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
- School of Biomedical Engineering and the Biomedical Research Centre, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Martin Arostegui
- Department of Cellular and Physiological Sciences, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
| | - T Michael Underhill
- Department of Cellular and Physiological Sciences, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada.
- School of Biomedical Engineering and the Biomedical Research Centre, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada.
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Zheng Z, Xu J, Chen J, Jiang B, Ma H, Li L, Li Y, Dai Y, Wang B. Integrated DNA methylation analysis reveals a potential role for PTPRN2 in Marfan syndrome scoliosis. JOR Spine 2024; 7:e1304. [PMID: 38304329 PMCID: PMC10831201 DOI: 10.1002/jsp2.1304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 10/30/2023] [Accepted: 11/01/2023] [Indexed: 02/03/2024] Open
Abstract
Background Marfan syndrome (MFS) is a rare genetic disorder caused by mutations in the Fibrillin-1 gene (FBN1) with significant clinical features in the skeletal, cardiopulmonary, and ocular systems. To gain deeper insights into the contribution of epigenetics in the variability of phenotypes observed in MFS, we undertook the first analysis of integrating DNA methylation and gene expression profiles in whole blood from MFS and healthy controls (HCs). Methods The Illumina 850K (EPIC) DNA methylation array was used to detect DNA methylation changes on peripheral blood samples of seven patients with MFS and five HCs. Associations between methylation levels and clinical features of MFS were analyzed. Subsequently, we conducted an integrated analysis of the outcomes of the transcriptome data to analyze the correlation between differentially methylated positions (DMPs) and differentially expressed genes (DEGs) and explore the potential role of methylation-regulated DEGs (MeDEGs) in MFS scoliosis. The weighted gene co-expression network analysis was used to find gene modules with the highest correlation coefficient with target MeDEGs to annotate their functions in MFS. Results Our study identified 1253 DMPs annotated to 236 genes that were primarily associated with scoliosis, cardiomyopathy, and vital capacity. These conditions are typically associated with reduced lifespan in untreated MFS. We calculated correlations between DMPs and clinical features, such as cobb angle to evaluate scoliosis and FEV1% to assess pulmonary function. Notably, cg20223687 (PTPRN2) exhibited a positive correlation with cobb angle of scoliosis, potentially playing a role in ERKs inactivation. Conclusions Taken together, our systems-level approach sheds light on the contribution of epigenetics to MFS and offers a plausible explanation for the complex phenotypes that are linked to reduced lifespan in untreated MFS patients.
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Affiliation(s)
- Zhen‐zhong Zheng
- Department of Spine Surgery, The Second Xiangya HospitalCentral South UniversityChangshaChina
- Hunan Digital Spine Research InstituteCentral South UniversityChangshaChina
| | - Jing‐hong Xu
- Department of Spine Surgery, The Second Xiangya HospitalCentral South UniversityChangshaChina
- Hunan Digital Spine Research InstituteCentral South UniversityChangshaChina
| | - Jia‐lin Chen
- Department of Spine Surgery, The Second Xiangya HospitalCentral South UniversityChangshaChina
- Hunan Digital Spine Research InstituteCentral South UniversityChangshaChina
| | - Bin Jiang
- Department of Spine Surgery, The Second Xiangya HospitalCentral South UniversityChangshaChina
- Hunan Digital Spine Research InstituteCentral South UniversityChangshaChina
| | - Hong Ma
- Department of Spine Surgery, The Second Xiangya HospitalCentral South UniversityChangshaChina
- Hunan Digital Spine Research InstituteCentral South UniversityChangshaChina
| | - Lei Li
- Department of Spine Surgery, The Second Xiangya HospitalCentral South UniversityChangshaChina
- Hunan Digital Spine Research InstituteCentral South UniversityChangshaChina
| | - Ya‐wei Li
- Department of Spine Surgery, The Second Xiangya HospitalCentral South UniversityChangshaChina
- Hunan Digital Spine Research InstituteCentral South UniversityChangshaChina
| | - Yu‐liang Dai
- Department of Spine Surgery, The Second Xiangya HospitalCentral South UniversityChangshaChina
- Hunan Digital Spine Research InstituteCentral South UniversityChangshaChina
| | - Bing Wang
- Department of Spine Surgery, The Second Xiangya HospitalCentral South UniversityChangshaChina
- Hunan Digital Spine Research InstituteCentral South UniversityChangshaChina
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Annanya A, Priyadharshini B, Suresh V, Dilipan E. Computational Analysis of Single Nucleotide Polymorphisms in Human HIC1 Gene. Cureus 2024; 16:e56664. [PMID: 38646326 PMCID: PMC11032261 DOI: 10.7759/cureus.56664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 03/21/2024] [Indexed: 04/23/2024] Open
Abstract
Background A putative tumor suppressor gene called HIC1 (hypermethylated in cancer) is situated at 17p13.3, a locus where the allelic loss occurs often in human malignancies, including breast cancer. Hypermethylated in cancer 1 protein is a protein that in humans is encoded by the HIC1 gene and it's a Homo sapiens (Human). This gene functions as a growth regulatory and tumor repressor gene. The molecular function of HIC1 gene includes DNA-binding transcription factor activity, sequence-specific DNA binding, DNA binding, histone deacetylase binding, protein binding, metal ion binding, nucleic acid binding, DNA-binding transcription repressor activity, RNA polymerase II-specific, DNA-binding transcription factor activity, RNA polymerase II-specific. The biological process of HIC1 gene includes multicellular organism development, negative regulation of Wnt signaling pathway, positive regulation of DNA damage response, signal transduction by p53 class mediator regulation of transcription, DNA-templated, negative regulation of transcription by RNA polymerase II, Wnt signaling pathway, transcription, DNA-templated, intrinsic apoptotic signaling pathway in response to DNA damage, cellular response to DNA damage stimulus. The study aimed to predict the stability and structure of the protein that will arise from single nucleotide polymorphisms (SNPs) in the human HIC1 gene. Methodology To investigate the possible negative effects associated with these SNPs, bioinformatic analysis is typically essential. The following tools were employed for forecasting harmful SNPs: scale-invariant feature transform (SIFT), Protein Analysis Through Evolutionary Relationships (PANTHER), nonsynonymous SNP by Protein Variation Effect Analyzer (PROVEAN), and nonsynonymous SNP by Single Nucleotide Polymorphism Annotation Platform (SNAP). Results The present study identified a total of 36 SNPs using the SIFT approach, which were shown to have functional significance. Twenty-six were determined to be tolerable, whereas 10 were shown to be detrimental. Out of 20 SNPs, seven (P370A, P646S, R654P, A476T, S400S, D666N, D7V) SNPs were predicted as "Possibly damaging" and seven (L9F, G468R, G490R, L482R, S12W, G489D, S12P) were identified as "probably benign", and six (R725G, G620S, A56V, E463D, D394N, L338V) were identified as "probably damaging" according to the predictions made by PANTHER tools. The majority of the pixels on the strip were red, indicating that the gene changes may have dangerous consequences. These results highlight the need for more research to fully comprehend how these mutations affect the hic1 protein's function, which is essential for the emergence of different types of cancer. Conclusion The current research has provided us with essential information about how SNPs might be used as a diagnostic marker for cancer, given that SNPs may be candidates for cellular changes caused by mutations linked to cancer.
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Affiliation(s)
- Arora Annanya
- Physiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, IND
| | - Boopathi Priyadharshini
- Physiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, IND
| | - Vasugi Suresh
- Medical Physiology, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, IND
| | - Elangovan Dilipan
- Physiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, IND
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Lee SW, Frankston CM, Kim J. Epigenome editing in cancer: Advances and challenges for potential therapeutic options. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2023; 383:191-230. [PMID: 38359969 DOI: 10.1016/bs.ircmb.2023.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Cancers are diseases caused by genetic and non-genetic environmental factors. Epigenetic alterations, some attributed to non-genetic factors, can lead to cancer development. Epigenetic changes can occur in tumor suppressors or oncogenes, or they may contribute to global cell state changes, making cells abnormal. Recent advances in gene editing technology show potential for cancer treatment. Herein, we will discuss our current knowledge of epigenetic alterations occurring in cancer and epigenetic editing technologies that can be applied to developing therapeutic options.
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Affiliation(s)
- Seung-Won Lee
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, United States; Department of Molecular and Medical Genetics, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Connor Mitchell Frankston
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, United States; Biomedical Engineering Graduate Program, Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Jungsun Kim
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, United States; Department of Molecular and Medical Genetics, School of Medicine, Oregon Health & Science University, Portland, OR, United States; Cancer Biology Research Program, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, United States.
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Luo F, Liao Y, Cao E, Yang Y, Tang K, Zhou D, Zhou D, Cai H. Hypermethylation of HIC2 is a potential prognostic biomarker and tumor suppressor of glioma based on bioinformatics analysis and experiments. CNS Neurosci Ther 2023; 29:1154-1167. [PMID: 36650953 PMCID: PMC10018090 DOI: 10.1111/cns.14093] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/29/2022] [Accepted: 12/29/2022] [Indexed: 01/19/2023] Open
Abstract
INTRODUCTION Glioma is the most common primary tumor in the central nervous system, and prognostic biomarkers are still lacking. HIC ZBTB transcriptional repressor 2 (HIC2) is a hypermethylated gene that plays an important functional role in cardiac development. However, the actual role of HIC2 in glioma progression remains unclear. This study aimed to investigate the function of HIC2 and whether it could be a prognostic biomarker in glioma. METHODS The DNA methylation and mRNA expression profiles of HIC2 were downloaded from public databases. The prognostic prediction ability and mechanism research of HIC2 were evaluated. RESULTS We found that HIC2 was hypermethylated and expressed at low levels in glioma samples. Hypermethylation and low expression of HIC2 predicted poor prognosis. Multivariate Cox regression analysis suggested that HIC2 was an independent prognostic factor for gliomas. Co-IP assays demonstrated that HIC2 interacts with RNF44, and dual-luciferase reporter assays and ChIP assays revealed that HIC2 transcriptionally inhibits PTPRN2 expression. CONCLUSIONS Our findings suggest that HIC2 represents a tumor suppressor gene and prognostic biomarker for glioma progression and that overexpression of HIC2 inhibits the proliferation of glioma in vitro and in vivo by interacting with RNF44 and PTPRN2.
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Affiliation(s)
- Feifei Luo
- Cancer Epigenetics Laboratory, Department of Clinical Oncology, State Key Laboratory of Oncology in South ChinaSir YK Pao Center for Cancer and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong KongHong KongChina
| | - Yifu Liao
- Department of NeurologyGuangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical UniversityGuangzhouChina
| | - Endong Cao
- Department of NeurosurgeryGuangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical UniversityGuangzhouChina
| | - Yong Yang
- Department of NeurosurgeryGuangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical UniversityGuangzhouChina
| | - Kai Tang
- Department of NeurosurgeryGuangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical UniversityGuangzhouChina
| | - Dexiang Zhou
- Department of NeurosurgeryGuangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical UniversityGuangzhouChina
| | - Dong Zhou
- Department of NeurosurgeryGuangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical UniversityGuangzhouChina
| | - Haiping Cai
- Department of NeurosurgeryGuangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical UniversityGuangzhouChina
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Son J, Du W, Esposito M, Shariati K, Ding H, Kang Y, Accili D. Genetic and pharmacologic inhibition of ALDH1A3 as a treatment of β-cell failure. Nat Commun 2023; 14:558. [PMID: 36732513 PMCID: PMC9895451 DOI: 10.1038/s41467-023-36315-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 01/26/2023] [Indexed: 02/04/2023] Open
Abstract
Type 2 diabetes (T2D) is associated with β-cell dedifferentiation. Aldehyde dehydrogenase 1 isoform A3 (ALHD1A3) is a marker of β-cell dedifferentiation and correlates with T2D progression. However, it is unknown whether ALDH1A3 activity contributes to β-cell failure, and whether the decrease of ALDH1A3-positive β-cells (A+) following pair-feeding of diabetic animals is due to β-cell restoration. To tackle these questions, we (i) investigated the fate of A+ cells during pair-feeding by lineage-tracing, (ii) somatically ablated ALDH1A3 in diabetic β-cells, and (iii) used a novel selective ALDH1A3 inhibitor to treat diabetes. Lineage tracing and functional characterization show that A+ cells can be reconverted to functional, mature β-cells. Genetic or pharmacological inhibition of ALDH1A3 in diabetic mice lowers glycemia and increases insulin secretion. Characterization of β-cells following ALDH1A3 inhibition shows reactivation of differentiation as well as regeneration pathways. We conclude that ALDH1A3 inhibition offers a therapeutic strategy against β-cell dysfunction in diabetes.
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Affiliation(s)
- Jinsook Son
- Department of Medicine and Naomi Berrie Diabetes Center, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, 10032, USA.
| | - Wen Du
- Department of Medicine and Naomi Berrie Diabetes Center, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, 10032, USA
| | - Mark Esposito
- Kayothera Inc, Seattle, WA, USA
- Department of Molecular Biology, Princeton University, 08544, Princeton, NJ, USA
| | - Kaavian Shariati
- Department of Medicine and Naomi Berrie Diabetes Center, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, 10032, USA
| | - Hongxu Ding
- Department of Pharmacy Practice & Science, College of Pharmacy, University of Arizona, Tucson, AZ, 85721, USA
| | - Yibin Kang
- Department of Molecular Biology, Princeton University, 08544, Princeton, NJ, USA
| | - Domenico Accili
- Department of Medicine and Naomi Berrie Diabetes Center, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, 10032, USA
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Cellular taxonomy of Hic1 + mesenchymal progenitor derivatives in the limb: from embryo to adult. Nat Commun 2022; 13:4989. [PMID: 36008423 PMCID: PMC9411605 DOI: 10.1038/s41467-022-32695-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 08/05/2022] [Indexed: 12/18/2022] Open
Abstract
Tissue development and regeneration rely on the cooperation of multiple mesenchymal progenitor (MP) subpopulations. We recently identified Hic1 as a marker of quiescent MPs in multiple adult tissues. Here, we describe the embryonic origin of appendicular Hic1+ MPs and demonstrate that they arise in the hypaxial somite, and migrate into the developing limb at embryonic day 11.5, well after limb bud initiation. Time-resolved single-cell-omics analyses coupled with lineage tracing reveal that Hic1+ cells generate a unique MP hierarchy, that includes both recently identified adult universal fibroblast populations (Dpt+, Pi16+ and Dpt+ Col15a1+) and more specialised mesenchymal derivatives such as, peri and endoneurial cells, pericytes, bone marrow stromal cells, myotenocytes, tenocytes, fascia-resident fibroblasts, with limited contributions to chondrocytes and osteocytes within the skeletal elements. MPs endure within these compartments, continue to express Hic1 and represent a critical reservoir to support post-natal growth and regeneration.
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Targeting HIC1/TGF-β axis-shaped prostate cancer microenvironment restrains its progression. Cell Death Dis 2022; 13:624. [PMID: 35853880 PMCID: PMC9296670 DOI: 10.1038/s41419-022-05086-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 01/21/2023]
Abstract
Prostate cancer (PCa) is a malignant tumor that seriously threatens men's health worldwide. Recently, stromal cells in the tumor microenvironment (TME) have been reported to contribute to the progression of PCa. However, the role and mechanism of how PCa cells interact with stromal cells to reshape the TME remain largely unknown. Here, using a spontaneous prostate adenocarcinoma (PRAD) model driven by the loss of Pten and Hic1, we found that M2 macrophages markedly infiltrated the stroma of Pten and Hic1 double conditional knockout (dCKO) mice compared with those in control (Ctrl) mice due to higher TGF-β levels secreted by HIC1-deleted PCa cells. Mechanistically, TGF-β in TME promoted the polarization of macrophages into "M2" status by activating the STAT3 pathway and modulating c-Myc to upregulate CXCR4 expression. Meanwhile, TGF-β activated the fibroblasts to form cancer-associated fibroblasts (CAFs) that secrete higher CXCL12 levels, which bound to its cognate receptor CXCR4 on M2 macrophages. Upon interaction with CAFs, M2 macrophages secreted more CXCL5, which promoted the epithelial-mesenchymal transition (EMT) of PCa via CXCR2. Moreover, using the TGF-β receptor I antagonist, galunisertib, significantly inhibited the tumor growth and progression of the TRAMP-C1 cell line-derived subcutaneous tumor model. Finally, we confirmed that the stromal microenvironment was shaped by TGF-β in HIC1-deficient PCa and was associated with the progression of PCa.
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Sirtuin 4 Inhibits Prostate Cancer Progression and Metastasis by Modulating p21 Nuclear Translocation and Glutamate Dehydrogenase 1 ADP-Ribosylation. JOURNAL OF ONCOLOGY 2022; 2022:5498743. [PMID: 35847357 PMCID: PMC9283077 DOI: 10.1155/2022/5498743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 05/14/2022] [Accepted: 05/31/2022] [Indexed: 11/18/2022]
Abstract
Protein posttranslational modification regulates several biological mechanisms, including tumor progression. In this study, we show that the mitochondrial Sirtuin 4 (SIRT4), which has ADP-ribosylation activity, plays a role in prostate cancer (PCa) progression. Firstly, SIRT4 expression was verified in PCa tissues and cell lines by quantitative real-time PCR (qRT-PCR) and western blotting. Subsequently, we established stable PC-3 and 22rv1 cells that overexpressed SIRT4 and knocked down SIRT4, respectively. The functions of SIRT4 in PCa were explored through various phenotype experiments. The mechanism underlying the functions of SIRT4 was investigated through western blotting, immunoprecipitation, immunofluorescence, and nuclear and cytoplasmic extraction assays. We revealed that SIRT4 inhibited cell progression both in vivo and in vitro. Mechanistically, on the one hand, SIRT4 promoted the ADP-ribosylation of glutamate dehydrogenase 1 to inhibit the glutamine metabolism pathways. On the other hand, SIRT4 inhibited the phosphorylation of AKT, thereby affecting p21 phosphorylation and its cellular localization for cell cycle arrest. In conclusion, our study indicates that SIRT4 is directly associated with PCa progression and could be a novel target for PCa therapy.
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Histone Modification on Parathyroid Tumors: A Review of Epigenetics. Int J Mol Sci 2022; 23:ijms23105378. [PMID: 35628190 PMCID: PMC9140881 DOI: 10.3390/ijms23105378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/02/2022] [Accepted: 05/07/2022] [Indexed: 01/27/2023] Open
Abstract
Parathyroid tumors are very prevalent conditions among endocrine tumors, being the second most common behind thyroid tumors. Secondary hyperplasia can occur beyond benign and malignant neoplasia in parathyroid glands. Adenomas are the leading cause of hyperparathyroidism, while carcinomas represent less than 1% of the cases. Tumor suppressor gene mutations such as MEN1 and CDC73 were demonstrated to be involved in tumor development in both familiar and sporadic types; however, the epigenetic features of the parathyroid tumors are still a little-explored subject. We present a review of epigenetic mechanisms related to parathyroid tumors, emphasizing advances in histone modification and its perspective of becoming a promising area in parathyroid tumor research.
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Liu J, Chou Z, Li C, Huang K, Wang X, Li X, Han C, Al-Danakh A, Li X, Song X. ZBTB7A, a miR-144-3p targeted gene, accelerates bladder cancer progression via downregulating HIC1 expression. Cancer Cell Int 2022; 22:179. [PMID: 35501800 PMCID: PMC9063087 DOI: 10.1186/s12935-022-02596-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 04/18/2022] [Indexed: 12/24/2022] Open
Abstract
Background Zinc finger and BTB domain-containing 7A (ZBTB7A) is a member of the POK family of transcription factors that plays an oncogenic or tumor-suppressive role in different cancers depending on the type and genetic context of cancer. However, the function and molecular mechanism of ZBTB7A in bladder cancer (BC) remain elusive. Methods The role of ZBTB7A in bladder cancer was detected by colony formation, transwell, and tumor formation assays. The expression levels of ZBTB7A, HIC1, and miR-144-3p were analyzed by qRT-PCR and Western blot. Bioinformatics analysis and a dual-luciferase reporter assay were used to assess the effect of ZBTB7A on the promoter activity of HIC1. Results The present study revealed that knockdown of ZBTB7A suppressed BC cell growth and migration, as indicated by an approximately 50% reduction in the number of colonies and an approximately 70% reduction in the number of migrated cells. Loss of ZBTB7A inhibited tumor growth in vivo, resulting in a 75% decrease in tumor volume and an 80% decrease in tumor weight. Further mechanistic studies revealed that ZBTB7A bound to the hypermethylated in cancer 1 (HIC1) promoter and downregulated HIC1 expression, accelerating the malignant behavior of BC. Increased expression of ZBTB7A in BC tissues was negatively corrected with the expression of HIC1. Moreover, ZBTB7A was a target of miR-144-3p, which decreased ZBTB7A expression in BC. Conclusion Our data demonstrate that ZBTB7A, a targeted gene of miR-144-3p, promoted tumorigenesis of BC through downregulating HIC1 expression. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-022-02596-w.
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Affiliation(s)
- Junqiang Liu
- Department of Urology of First Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Zhiyuan Chou
- Department of Urology of First Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Chun Li
- Central Laboratory, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Kai Huang
- Department of Urology of First Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Xuejian Wang
- Department of Urology of First Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Xiunan Li
- Department of Urology of First Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Chuanchun Han
- Department of Urology of First Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Abdullah Al-Danakh
- Department of Urology of First Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Xiaodong Li
- Department of Urology of First Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China.
| | - Xishuang Song
- Department of Urology of First Affiliated Hospital, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China.
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Yao J, Yang J, Yang Z, Wang XP, Yang T, Ji B, Zhang ZY. FBXW11 contributes to stem-cell-like features and liver metastasis through regulating HIC1-mediated SIRT1 transcription in colorectal cancer. Cell Death Dis 2021; 12:930. [PMID: 34642302 PMCID: PMC8511012 DOI: 10.1038/s41419-021-04185-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 09/02/2021] [Accepted: 09/15/2021] [Indexed: 01/10/2023]
Abstract
Colorectal tumorigenesis is a heterogeneous disease driven by multiple genetic and epigenetic alterations. F-box and WD repeat domain containing 11 (FBXW11) is a member of the F-box protein family that regulates the ubiquitination of key factors associated with tumor growth and aggressiveness. Our study aimed to explore the role of FBXW11 in the development and metastasis of colorectal cancer (CRC). FBXW11 was overexpressed in colorectal tumor tissues and its overexpression was associated with a poor prognosis of CRC patients. The upregulation of FBXW11 not only promoted cell proliferation, invasion, and migration, but also contributed to maintaining stem-cell features in colorectal tumor cells. Further analysis revealed that FBXW11 targeted hypermethylated in cancer 1 (HIC1) and reduced its stability in CRC cells through ubiquitination. Moreover, the expression of sirtuin 1 (SIRT1), a deacetylase in tumor cells was upregulated by FBXW11 via regulating HIC1 expression. The mouse xenograft models of CRC confirmed that FBXW11 knockdown impeded colorectal tumor growth and liver metastasis in vivo. In summary, our study identified FBXW11 as an oncogenic factor that contributed to stem-cell-like properties and liver metastasis in CRC via regulating HIC1-mediated SIRT1 expression. These results provide a rationale for the development of FBXW11-targeting drugs for CRC patients.
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Affiliation(s)
- Jing Yao
- Department of Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai City, 200233, China
| | - Jun Yang
- Department of Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai City, 200233, China
| | - Zhe Yang
- Department of Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai City, 200233, China
| | - Xin-Ping Wang
- Department of Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai City, 200233, China
| | - Tong Yang
- Department of Internal Medicine, Huzhou Traditional Chinese Medicine Hospital Affiliated to Zhejiang Chinese Medical University, Huzhou City, Zhejiang Province, 313000, China
| | - Bing Ji
- Department of Internal Medicine, Huzhou Traditional Chinese Medicine Hospital Affiliated to Zhejiang Chinese Medical University, Huzhou City, Zhejiang Province, 313000, China.
| | - Zheng-Yun Zhang
- Department of Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai City, 200233, China.
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13
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δ-Catenin Participates in EGF/AKT/p21 Waf Signaling and Induces Prostate Cancer Cell Proliferation and Invasion. Int J Mol Sci 2021; 22:ijms22105306. [PMID: 34069970 PMCID: PMC8157876 DOI: 10.3390/ijms22105306] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/14/2021] [Accepted: 05/14/2021] [Indexed: 12/29/2022] Open
Abstract
Prostate cancer (PCa) is the second most leading cause of death in males. Our previous studies have demonstrated that δ-catenin plays an important role in prostate cancer progression. However, the molecular mechanism underlying the regulation of δ-catenin has not been fully explored yet. In the present study, we found that δ-catenin could induce phosphorylation of p21Waf and stabilize p21 in the cytoplasm, thus blocking its nuclear accumulation for the first time. We also found that δ-catenin could regulate the interaction between AKT and p21, leading to phosphorylation of p21 at Thr-145 residue. Finally, EGF was found to be a key factor upstream of AKT/δ-catenin/p21 for promoting proliferation and metastasis in prostate cancer. Our findings provide new insights into molecular controls of EGF and the development of potential therapeutics targeting δ-catenin to control prostate cancer progression.
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14
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Loss of Thymine DNA Glycosylase Causes Dysregulation of Bile Acid Homeostasis and Hepatocellular Carcinoma. Cell Rep 2021; 31:107475. [PMID: 32268085 DOI: 10.1016/j.celrep.2020.03.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 01/14/2020] [Accepted: 03/12/2020] [Indexed: 12/31/2022] Open
Abstract
Thymine DNA glycosylase (TDG) is a nuclear receptor coactivator that plays an essential role in the maintenance of epigenetic stability in cells. Here, we demonstrate that the conditional deletion of TDG in adult mice results in a male-predominant onset of hepatocellular carcinoma (HCC). TDG loss leads to a prediabetic state, as well as bile acid (BA) accumulation in the liver and serum of male mice. Consistent with these data, TDG deletion led to dysregulation of the farnesoid X receptor (FXR) and small heterodimer partner (SHP) regulatory cascade in the liver. FXR and SHP are tumor suppressors of HCC and play an essential role in BA and glucose homeostasis. These results indicate that TDG functions as a tumor suppressor of HCC by regulating a transcriptional program that protects against the development of glucose intolerance and BA accumulation in the liver.
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15
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Abdullah O, Omran Z, Hosawi S, Hamiche A, Bronner C, Alhosin M. Thymoquinone Is a Multitarget Single Epidrug That Inhibits the UHRF1 Protein Complex. Genes (Basel) 2021; 12:genes12050622. [PMID: 33922029 PMCID: PMC8143546 DOI: 10.3390/genes12050622] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/17/2021] [Accepted: 04/20/2021] [Indexed: 02/07/2023] Open
Abstract
Silencing of tumor suppressor genes (TSGs) through epigenetic mechanisms, mainly via abnormal promoter DNA methylation, is considered a main mechanism of tumorigenesis. The abnormal DNA methylation profiles are transmitted from the cancer mother cell to the daughter cells through the involvement of a macromolecular complex in which the ubiquitin-like containing plant homeodomain (PHD), and an interesting new gene (RING) finger domains 1 (UHRF1), play the role of conductor. Indeed, UHRF1 interacts with epigenetic writers, such as DNA methyltransferase 1 (DNMT1), histone methyltransferase G9a, erasers like histone deacetylase 1 (HDAC1), and functions as a hub protein. Thus, targeting UHRF1 and/or its partners is a promising strategy for epigenetic cancer therapy. The natural compound thymoquinone (TQ) exhibits anticancer activities by targeting several cellular signaling pathways, including those involving UHRF1. In this review, we highlight TQ as a potential multitarget single epidrug that functions by targeting the UHRF1/DNMT1/HDAC1/G9a complex. We also speculate on the possibility that TQ might specifically target UHRF1, with subsequent regulatory effects on other partners.
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Affiliation(s)
- Omeima Abdullah
- College of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia; (O.A.); (Z.O.)
| | - Ziad Omran
- College of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia; (O.A.); (Z.O.)
| | - Salman Hosawi
- Department of Biochemistry, Faculty of Science, Cancer and Mutagenesis Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Ali Hamiche
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR7104, INSERM U964, Université de Strasbourg, 67404 Illkirch, France; (A.H.); (C.B.)
| | - Christian Bronner
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR7104, INSERM U964, Université de Strasbourg, 67404 Illkirch, France; (A.H.); (C.B.)
| | - Mahmoud Alhosin
- Department of Biochemistry, Faculty of Science, Cancer and Mutagenesis Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Correspondence: ; Tel.: +966-597-959-354
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16
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Scott RW, Arostegui M, Schweitzer R, Rossi FMV, Underhill TM. Hic1 Defines Quiescent Mesenchymal Progenitor Subpopulations with Distinct Functions and Fates in Skeletal Muscle Regeneration. Cell Stem Cell 2020; 25:797-813.e9. [PMID: 31809738 DOI: 10.1016/j.stem.2019.11.004] [Citation(s) in RCA: 120] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 07/10/2019] [Accepted: 11/11/2019] [Indexed: 01/01/2023]
Abstract
Many adult tissues contain resident stem cells, such as the Pax7+ satellite cells within skeletal muscle, that regenerate parenchymal elements following damage. Tissue-resident mesenchymal progenitors (MPs) also participate in regeneration, although their function and fate in this process are unclear. Here, we identify Hypermethylated in cancer 1 (Hic1) as a marker of MPs in skeletal muscle and further show that Hic1 deletion leads to MP hyperplasia. Single-cell RNA-seq and ATAC-seq analysis of Hic1+ MPs in skeletal muscle shows multiple subpopulations, which we further show have distinct functions and lineage potential. Hic1+ MPs orchestrate multiple aspects of skeletal muscle regeneration by providing stage-specific immunomodulation and trophic and mechanical support. During muscle regeneration, Hic1+ derivatives directly contribute to several mesenchymal compartments including Col22a1-expressing cells within the myotendinous junction. Collectively, these findings demonstrate that HIC1 regulates MP quiescence and identifies MP subpopulations with transient and enduring roles in muscle regeneration.
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Affiliation(s)
- R Wilder Scott
- Department of Cellular and Physiological Sciences, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada; School of Biomedical Engineering and the Biomedical Research Centre, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Martin Arostegui
- Department of Cellular and Physiological Sciences, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Ronen Schweitzer
- Research Division, Shriners Hospital for Children, Portland, OR 97239, USA
| | - Fabio M V Rossi
- Department of Medical Genetics, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada; School of Biomedical Engineering and the Biomedical Research Centre, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - T Michael Underhill
- Department of Cellular and Physiological Sciences, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada; School of Biomedical Engineering and the Biomedical Research Centre, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada.
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17
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Zhao T, Afrifa J, Wang D, Yu J. Association between HIC1 promoter methylation and solid tumor: A meta-analysis. EXCLI JOURNAL 2020; 19:476-489. [PMID: 32398971 PMCID: PMC7214777 DOI: 10.17179/excli2020-1102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 03/27/2020] [Indexed: 01/11/2023]
Abstract
The epigenetic silencing of tumor suppressor genes by promoter methylation plays an increasingly important role in cancer research. A number of studies have reported the contribution of HIC1 promoter methylation towards the occurrence and development of solid tumors, even though HIC1 promoter methylation has also been found in normal and benign tissue samples. We sought to perform a more accurate and comprehensive meta-analysis to assess the association between HIC1 promoter methylation and cancer risk. We searched and retrieved all published studies on HIC1 promoter methylation in PubMed, Google Scholar, Embase, Cochrane Library, and Web of Science databases. After two reviewers checked the studies and extracted the necessary data independently, the meta-analysis was performed using STATA 12.0 software. A total of 14 case-control studies (949 cancer patients, 282 benign, and 371 normal controls) were included in our study. We report a significantly elevated HIC1 promoter methylation in tumor samples compared to normal (OR = 7.02, 95 % CI 3.12-15.78, P < 0.001) and benign controls (OR = 2.69, 95 % CI 1.13-6.42, P = 0.025). Subgroup analysis stratified by ethnicity showed a significantly reduced heterogeneity among North American (I2 = 0.0 %, P = 0.502) and European (I2 = 33.7 %, P = 0.183) samples. In addition, heterogeneity was significantly reduced among MSP based detection method (I2 = 36.4 %, P = 0.139) when samples were stratified based on the methylation detection methods. The overall outcome demonstrated that HIC1 promoter methylation may be involved in the occurrence and development of solid tumors and has the potential to serve as an epigenetic maker in various specific tumors.
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Affiliation(s)
- Tie Zhao
- Scientific Research Centre, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Justice Afrifa
- Scientific Research Centre, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China.,Department of Medical Laboratory Science, University of Cape Coast, Cape Coast, Ghana
| | - Dong Wang
- Scientific Research Centre, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Jingcui Yu
- Scientific Research Centre, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
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18
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Contreras O. Hic1 deletion unleashes quiescent connective tissue stem cells and impairs skeletal muscle regeneration. J Cell Commun Signal 2020; 14:131-133. [PMID: 31865519 PMCID: PMC7176797 DOI: 10.1007/s12079-019-00545-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 12/13/2019] [Indexed: 12/13/2022] Open
Abstract
Skeletal muscle fibro-adipogenic progenitors (FAPs) are tissue-resident connective tissue cells and the main cellular source of pathological fibro-fatty scar associated with muscle disorders. Although our knowledge about skeletal muscle mesenchymal progenitor cells has exploded in the past decade, we still lack information about their origin, fate, gene regulation, function, and stemness. A recent study by Underhill and colleagues, published in Cell Stem Cell, described the last census of Hic1 mesenchymal progenitor/stem cells in skeletal muscle regeneration, providing valuable results and data to the ever-expanding community of scientists interested in tissue regeneration and fibrosis. This commentary contextualizes and summarizes these exciting new findings.
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Affiliation(s)
- Osvaldo Contreras
- Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, 8331150, Santiago, Chile.
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19
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Microdeletions excluding YWHAE and PAFAH1B1 cause a unique leukoencephalopathy: further delineation of the 17p13.3 microdeletion spectrum. Genet Med 2018; 21:1652-1656. [PMID: 30568308 PMCID: PMC6586530 DOI: 10.1038/s41436-018-0358-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 10/30/2018] [Indexed: 01/18/2023] Open
Abstract
PURPOSE Brain malformations caused by 17p13.3 deletions include lissencephaly with deletions of the larger Miller-Dieker syndrome region or smaller deletions of only PAFAH1B1, white matter changes, and a distinct syndrome due to deletions including YWHAE and CRK but sparing PAFAH1B1. We sought to understand the significance of 17p13.3 deletions between the YWHAE/CRK and PAFAH1B1 loci. METHODS We analyzed the clinical features of six individuals from five families with 17p13.3 deletions between and not including YWHAE/CRK and PAFAH1B1 identified among individuals undergoing clinical chromosomal microarray testing or research genome sequencing. RESULTS Five individuals from four families had multifocal white matter lesions while a sixth had a normal magnetic resonance image. A combination of our individuals and a review of those in the literature with white matter changes and deletions in this chromosomal region narrows the overlapping region for this brain phenotype to ~345 kb, including 11 RefSeq genes, with RTN4RL1 haploinsufficiency as the best candidate for causing this phenotype. CONCLUSION While previous literature has hypothesized dysmorphic features and white matter changes related to YWHAE, our cohort contributes evidence to the presence of additional genetic changes within 17p13.3 required for proper brain development.
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20
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Ranjbar R, Karimian A, Aghaie Fard A, Tourani M, Majidinia M, Jadidi-Niaragh F, Yousefi B. The importance of miRNAs and epigenetics in acute lymphoblastic leukemia prognosis. J Cell Physiol 2018; 234:3216-3230. [PMID: 29384211 DOI: 10.1002/jcp.26510] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 01/25/2018] [Indexed: 12/19/2022]
Abstract
Acute lymphoblastic leukemia (ALL), one of the most common malignant human disorders, originates in different important genetic lesions in T-cell or B-cell progenitors. ALL is a malignant lymphoid progenitor with peak prevalence in children (2-5 years). The rate of survival when one is suffering from ALL depends on various agents including the age of the patient, responses to anti-leukemic therapy, and cell biology. miRNAs and epigenetics are important regulatory factors in the expression of genes. miRNAs are noncoding RNA with inhibitory effectors on specific mRNA. Patterns of DNA methylation are profoundly changed in ALL by epigenetic mechanisms. The deciphering of miRNA and the epigenetic pathogenesis in ALL could revolutionize response to the therapy and outcome, and create an enormous promise for novel approaches to reduce the toxic side-effects of intensive leukemia. Hence, pathogenetic miRNAs and epigenetics leading to the initiation and the progression of ALL are summarized in this review.
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Affiliation(s)
- Reza Ranjbar
- Molecular Biology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Ansar Karimian
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
- Cancer & Immunology Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Arad Aghaie Fard
- Faculty of Medical Science, Department of Hematology, Tarbiat Modares University, Tehran, Iran
| | - Mehdi Tourani
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | | | - Bahman Yousefi
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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21
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Zhou X, Zhang P, Han H, Lei H, Zhang X. Hypermethylated in cancer 1 (HIC1) suppresses bladder cancer progression by targeting yes-associated protein (YAP) pathway. J Cell Biochem 2018; 120:6471-6481. [PMID: 30417565 DOI: 10.1002/jcb.27938] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 10/02/2018] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Bladder cancer (BCa) is the most common malignant tumor in the urinary system. Growing evidence suggests that as a tumor suppressor gene, hypermethylated in cancer 1 (HIC1) is correlated with various malignancies in the modulation of tumor progression. This study aims to investigate the effect of HIC1 on regulating the proliferation, migration, and invasion of BCa. METHODS Quantitative reverse transcription polymerase chain reaction (qRT-PCR) and Western blot (WB) were used to evaluate the expression of HIC1 messenger RNA and protein in human BCa tissues and cells. Proliferation, migration and invasion assays, and flow cytometry assay were performed to assess the biological functional role of HIC1 in BCa. Co-immunoprecipitation (Co-IP) examined the protein-protein interaction. The signaling pathways involved in the mode of action of HIC1 in BCa were also investigated. RESULTS HIC1 was found downregulated in tested samples. Cloning formation assay and cell-proliferation activity analysis showed that overexpression of HIC1 significantly inhibited the proliferation of BCa cells, while knockdown led to the opposite, namely the promotion of the proliferation. Flow cytometry assay confirmed the arrest of the cell cycle at the G1 phase with overexpression of HIC1 observed. Moreover, HIC1 inhibited migration and invasion of BCa. Co-IP showed the binding between YAP (yes-associated protein) and TEAD (TEA domain/transcription enhancer factor family members) as well as the cancerostatic activity of HIC1, partially manifested via its negative regulation of YAP signaling pathway. CONCLUSIONS Our data unprecedently showed that HIC1 was responsible for the inhibition of proliferation, migration, and invasion of BCa via the YAP signaling pathway. These findings suggested that therapeutic strategies regulating HIC1 expression might provide effective treatments for BCa.
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Affiliation(s)
- Xiaoguang Zhou
- Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Peng Zhang
- Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Hu Han
- Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Hongen Lei
- Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Xiaodong Zhang
- Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
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22
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HIC1 and RassF1A Methylation Attenuates Tubulin Expression and Cell Stiffness in Cancer. Int J Mol Sci 2018; 19:ijms19102884. [PMID: 30249017 PMCID: PMC6212922 DOI: 10.3390/ijms19102884] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 09/19/2018] [Indexed: 12/12/2022] Open
Abstract
Cell stiffness is a potential biomarker for monitoring cellular transformation, metastasis, and drug resistance development. Environmental factors relayed into the cell may result in formation of inheritable markers (e.g., DNA methylation), which provide selectable advantages (e.g., tumor development-favoring changes in cell stiffness). We previously demonstrated that targeted methylation of two tumor suppressor genes, hypermethylated in cancer 1 (HIC1) and Ras-association domain family member 1A (RassF1A), transformed mesenchymal stem cells (MSCs). Here, transformation-associated cytoskeleton and cell stiffness changes were evaluated. Atomic force microscopy (AFM) was used to detect cell stiffness, and immunostaining was used to measure cytoskeleton expression and distribution in cultured cells as well as in vivo. HIC1 and RassF1A methylation (me_HR)-transformed MSCs developed into tumors that clonally expanded in vivo. In me_HR-transformed MSCs, cell stiffness was lost, tubulin expression decreased, and F-actin was disorganized; DNA methylation inhibitor treatment suppressed their tumor progression, but did not fully restore their F-actin organization and stiffness. Thus, me_HR-induced cell transformation was accompanied by the loss of cellular stiffness, suggesting that somatic epigenetic changes provide inheritable selection markers during tumor propagation, but inhibition of oncogenic aberrant DNA methylation cannot restore cellular stiffness fully. Therefore, cell stiffness is a candidate biomarker for cells' physiological status.
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23
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Hassan HM, Kolendowski B, Isovic M, Bose K, Dranse HJ, Sampaio AV, Underhill TM, Torchia J. Regulation of Active DNA Demethylation through RAR-Mediated Recruitment of a TET/TDG Complex. Cell Rep 2018; 19:1685-1697. [PMID: 28538185 DOI: 10.1016/j.celrep.2017.05.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 03/28/2017] [Accepted: 05/01/2017] [Indexed: 02/07/2023] Open
Abstract
Retinoic acid (RA) plays important roles in development, growth, and homeostasis through regulation of the nuclear receptors for RA (RARs). Herein, we identify Hypermethylated in Cancer 1 (Hic1) as an RA-inducible gene. HIC1 encodes a tumor suppressor, which is often silenced by promoter hypermethylation in cancer. Treatment of cells with an RAR agonist causes a rapid recruitment of an RAR/RXR complex consisting of TDG, the lysine acetyltransferase CBP, and TET 1/2 to the Hic1 promoter. Complex binding coincides with a transient accumulation of 5fC/5caC and concomitant upregulation of Hic1 expression, both of which are TDG dependent. Furthermore, conditional deletion of Tdg in vivo is associated with Hic1 silencing and DNA hypermethylation of the Hic1 promoter. These findings suggest that the catalytic and scaffolding activities of TDG are essential for RA-dependent gene expression and provide important insights into the mechanisms underlying targeting of TET-TDG complexes.
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Affiliation(s)
- Haider M Hassan
- Department of Biochemistry, Western University, London, ON N6A 5C1, Canada; Department of Oncology, The London Regional Cancer Program and the Lawson Health Research Institute, London, ON N6A 4L6, Canada
| | - Bart Kolendowski
- Department of Biochemistry, Western University, London, ON N6A 5C1, Canada; Department of Oncology, The London Regional Cancer Program and the Lawson Health Research Institute, London, ON N6A 4L6, Canada
| | - Majdina Isovic
- Department of Oncology, The London Regional Cancer Program and the Lawson Health Research Institute, London, ON N6A 4L6, Canada
| | - Kerstin Bose
- Department of Cellular and Physiological Sciences and the Biomedical Research Centre, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Helen J Dranse
- Department of Cellular and Physiological Sciences and the Biomedical Research Centre, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Arthur V Sampaio
- Department of Cellular and Physiological Sciences and the Biomedical Research Centre, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - T Michael Underhill
- Department of Cellular and Physiological Sciences and the Biomedical Research Centre, University of British Columbia, Vancouver, BC V6T 1Z3, Canada.
| | - Joseph Torchia
- Department of Biochemistry, Western University, London, ON N6A 5C1, Canada; Department of Oncology, The London Regional Cancer Program and the Lawson Health Research Institute, London, ON N6A 4L6, Canada.
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Wang Y, Huang X, Leng D, Li J, Wang L, Liang Y, Wang J, Miao R, Jiang T. DNA methylation signatures of pulmonary arterial smooth muscle cells in chronic thromboembolic pulmonary hypertension. Physiol Genomics 2018; 50:313-322. [PMID: 29473816 DOI: 10.1152/physiolgenomics.00069.2017] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a life-threatening disease, which is often underpinned by vascular remodeling. Pulmonary arterial smooth muscle cells (PASMCs) are the main participants in vascular remodeling. However, their biological role in CTEPH is not entirely clear. In the present study, we analyzed the whole epigenome-wide DNA methylation profile of cultured PASMCs from CTEPH and control cell lines with the Illumina Human Methylation 450K BeadChip. A total of 6,829 significantly differentially methylated probes (DMPs) were detected between these two groups. Among these, 4,246 DMPs were hypermethylated, while 2,583 DMPs were hypomethylated. The functional enrichment analysis of 1,743 DMPs in the promoter regions and corresponding genes indicated that DNA hypermethylation and hypomethylation might be involved in the regulation of genes that have multifarious biological roles, including roles in cancer-related diseases, the regulation of the actin cytoskeleton, cell adhesion, and pattern specification processes. The observed methylations were categorized into the most important functions, including those involved in cell proliferation, immunity, and migration. We speculate that these methylations were most likely involved in the possible pathophysiology of CTEPH. Gene interaction analysis pertaining to signal networks confirmed that PIK3CA and PIK3R1 were important mediators in these whole networks. The mRNA levels of PIK3CA, HIC1, and SSH1 were verified by qPCR and corresponded with DNA methylation differences. Understanding epigenetic features associated with CTEPH may provide new insights into the mechanism that underlie this condition.
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Affiliation(s)
- Ying Wang
- Department of Clinical Laboratory, Beijing Chao-Yang Hospital, Capital Medical University , Beijing , People's Republic of China.,Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Institute of Respiratory Medicine , Beijing , People's Republic of China
| | - Xiaoxi Huang
- Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Institute of Respiratory Medicine , Beijing , People's Republic of China.,Medical Research Center, Beijing Chao-Yang Hospital, Capital Medical University , Beijing , People's Republic of China
| | - Dong Leng
- Department of Clinical Laboratory, Beijing Chao-Yang Hospital, Capital Medical University , Beijing , People's Republic of China.,Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Institute of Respiratory Medicine , Beijing , People's Republic of China
| | - Jifeng Li
- Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Institute of Respiratory Medicine , Beijing , People's Republic of China.,Department of Respiratory and Critical Care Medicine, Beijing Chao-Yang Hospital, Capital Medical University , Beijing , People's Republic of China
| | - Lei Wang
- Department of Pulmonary and Critical Care Medicine, Xuanwu Hospital, Capital Medical University , Beijing , People's Republic of China
| | - Yan Liang
- Department of Clinical Laboratory, Beijing Chao-Yang Hospital, Capital Medical University , Beijing , People's Republic of China.,Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Institute of Respiratory Medicine , Beijing , People's Republic of China
| | - Jun Wang
- Department of Physiology, Capital Medical University , Beijing , People's Republic of China
| | - Ran Miao
- Department of Clinical Laboratory, Beijing Chao-Yang Hospital, Capital Medical University , Beijing , People's Republic of China.,Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Institute of Respiratory Medicine , Beijing , People's Republic of China
| | - Tao Jiang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University , Beijing , People's Republic of China.,Beijing Neurosurgical Institute, Capital Medical University , Beijing , People's Republic of China
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25
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Okazaki S, Schirripa M, Loupakis F, Cao S, Zhang W, Yang D, Ning Y, Berger MD, Miyamoto Y, Suenaga M, Iqubal S, Barzi A, Cremolini C, Falcone A, Battaglin F, Salvatore L, Borelli B, Helentjaris TG, Lenz HJ. Tandem repeat variation near the HIC1 (hypermethylated in cancer 1) promoter predicts outcome of oxaliplatin-based chemotherapy in patients with metastatic colorectal cancer. Cancer 2017; 123:4506-4514. [PMID: 28708932 DOI: 10.1002/cncr.30880] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 05/25/2017] [Accepted: 05/30/2017] [Indexed: 12/22/2022]
Abstract
BACKGROUND The hypermethylated in cancer 1/sirtuin 1 (HIC1/SIRT1) axis plays an important role in regulating the nucleotide excision repair pathway, which is the main oxaliplatin-induced damage-repair system. On the basis of prior evidence that the variable number of tandem repeat (VNTR) sequence located near the promoter lesion of HIC1 is associated with HIC1 gene expression, the authors tested the hypothesis that this VNTR is associated with clinical outcome in patients with metastatic colorectal cancer who receive oxaliplatin-based chemotherapy. METHODS Four independent cohorts were tested. Patients who received oxaliplatin-based chemotherapy served as the training cohort (n = 218), and those who received treatment without oxaliplatin served as the control cohort (n = 215). Two cohorts of patients who received oxaliplatin-based chemotherapy were used for validation studies (n = 176 and n = 73). The VNTR sequence near HIC1 was analyzed by polymerase chain reaction analysis and gel electrophoresis and was tested for associations with the response rate, progression-free survival, and overall survival. RESULTS In the training cohort, patients who harbored at least 5 tandem repeats (TRs) in both alleles had a significantly shorter PFS compared with those who had fewer than 4 TRs in at least 1 allele (9.5 vs 11.6 months; hazard ratio, 1.93; P = .012), and these findings remained statistically significant after multivariate analysis (hazard ratio, 2.00; 95% confidence interval, 1.13-3.54; P = .018). This preliminary association was confirmed in the validation cohort, and patients who had at least 5 TRs in both alleles had a worse PFS compared with the other cohort (7.9 vs 9.8 months; hazard ratio, 1.85; P = .044). CONCLUSIONS The current findings suggest that the VNTR sequence near HIC1 could be a predictive marker for oxaliplatin-based chemotherapy in patients with metastatic colorectal cancer. Cancer 2017;123:4506-14. © 2017 American Cancer Society.
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Affiliation(s)
- Satoshi Okazaki
- Department of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Marta Schirripa
- Department of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California.,Medical Oncology 1, Veneto Institute of Oncology, Institute for Research and Health Care (IRCCS), Padova, Italy
| | - Fotios Loupakis
- Medical Oncology 1, Veneto Institute of Oncology, Institute for Research and Health Care (IRCCS), Padova, Italy
| | - Shu Cao
- Department of Preventive Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Wu Zhang
- Department of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Dongyun Yang
- Department of Preventive Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Yan Ning
- Department of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Martin D Berger
- Department of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Yuji Miyamoto
- Department of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Mitsukuni Suenaga
- Department of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Syma Iqubal
- Department of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Afsaneh Barzi
- Department of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Chiara Cremolini
- Medical Oncology Unit 2, Pisa University Hospital, Tuscan Tumor Institute, Pisa, Italy
| | - Alfredo Falcone
- Medical Oncology Unit 2, Pisa University Hospital, Tuscan Tumor Institute, Pisa, Italy
| | - Francesca Battaglin
- Medical Oncology 1, Veneto Institute of Oncology, Institute for Research and Health Care (IRCCS), Padova, Italy
| | - Lisa Salvatore
- Medical Oncology Unit 2, Pisa University Hospital, Tuscan Tumor Institute, Pisa, Italy
| | - Beatrice Borelli
- Medical Oncology Unit 2, Pisa University Hospital, Tuscan Tumor Institute, Pisa, Italy
| | - Timothy G Helentjaris
- BIO5 Institute, University of Arizona, Tucson, Arizona.,Department of Plant Sciences, University of Arizona, Tucson, Arizona
| | - Heinz-Josef Lenz
- Department of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California
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Uchida K, Tanaka Y, Ichikawa H, Watanabe M, Mitani S, Morita K, Fujii H, Ishikawa M, Yoshino G, Okinaga H, Nagae G, Aburatani H, Ikeda Y, Susa T, Tamamori-Adachi M, Fukusato T, Uozaki H, Okazaki T, Iizuka M. An Excess of CYP24A1, Lack of CaSR, and a Novel lncRNA Near the PTH Gene Characterize an Ectopic PTH-Producing Tumor. J Endocr Soc 2017; 1:691-711. [PMID: 29264523 PMCID: PMC5686629 DOI: 10.1210/js.2017-00063] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 04/25/2017] [Indexed: 12/11/2022] Open
Abstract
Thus far, only 23 cases of the ectopic production of parathyroid hormone (PTH) have been reported. We have characterized the genome-wide transcription profile of an ectopic PTH-producing tumor originating from a retroperitoneal histiocytoma. We found that the calcium-sensing receptor (CaSR) was barely expressed in the tumor. Lack of CaSR, a crucial braking apparatus in the presence of both intraparathyroid and, probably, serendipitous PTH expression, might contribute strongly to the establishment and maintenance of the ectopic transcriptional activation of the PTH gene in nonparathyroid cells. Along with candidate drivers with a crucial frameshift mutation or copy number variation at specific chromosomal areas obtained from whole exome sequencing, we identified robust tumor-specific cytochrome P450 family 24 subfamily A member 1 (CYP24A1) overproduction, which was not observed in other non–PTH-expressing retroperitoneal histiocytoma and parathyroid adenoma samples. We then found a 2.5-kb noncoding RNA in the PTH 3′-downstream region that was exclusively present in the parathyroid adenoma and our tumor. Such a co-occurrence might act as another driver of ectopic PTH-producing tumorigenesis; both might release the control of PTH gene expression by shutting down the other branches of the safety system (e.g., CaSR and the vitamin D3–vitamin D receptor axis).
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Affiliation(s)
- Kosuke Uchida
- Department of Biochemistry, Teikyo University School of Medicine, Tokyo 173-0003, Japan.,Department of General Practice, National Defense Medical College, Saitama 359-0042, Japan
| | - Yuji Tanaka
- Department of General Practice, National Defense Medical College, Saitama 359-0042, Japan
| | - Hitoshi Ichikawa
- Genetics Division, National Cancer Center Research Institute, Tokyo 104-0045, Japan
| | - Masato Watanabe
- Department of Pathology, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Sachiyo Mitani
- Genetics Division, National Cancer Center Research Institute, Tokyo 104-0045, Japan
| | - Koji Morita
- Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Hiroko Fujii
- Department of Biochemistry, Teikyo University School of Medicine, Tokyo 173-0003, Japan.,Department of Internal Medicine, Self-Defense Forces Central Hospital, Tokyo 154-8532, Japan
| | - Mayumi Ishikawa
- Diabetes and Arteriosclerosis, Nippon Medical School, Musashikosugi Hospital, Kanagawa 211-8533, Japan
| | - Gen Yoshino
- Center for Diabetes, Shinsuma General Hospital, Hyogo 654-0047, Japan
| | - Hiroko Okinaga
- Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Genta Nagae
- Genome Science Laboratory Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904, Japan
| | - Hiroyuki Aburatani
- Genome Science Laboratory Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904, Japan
| | - Yoshifumi Ikeda
- Department of Surgery, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Takao Susa
- Department of Biochemistry, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Mimi Tamamori-Adachi
- Department of Biochemistry, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Toshio Fukusato
- Department of Pathology, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Hiroshi Uozaki
- Department of Pathology, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Tomoki Okazaki
- Department of Biochemistry, Teikyo University School of Medicine, Tokyo 173-0003, Japan
| | - Masayoshi Iizuka
- Department of Biochemistry, Teikyo University School of Medicine, Tokyo 173-0003, Japan
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27
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Nguyen D, Liao W, Zeng SX, Lu H. Reviving the guardian of the genome: Small molecule activators of p53. Pharmacol Ther 2017; 178:92-108. [PMID: 28351719 DOI: 10.1016/j.pharmthera.2017.03.013] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 03/20/2017] [Indexed: 02/07/2023]
Abstract
The tumor suppressor p53 is one of the most important proteins for protection of genomic stability and cancer prevention. Cancers often inactivate it by either mutating its gene or disabling its function. Thus, activating p53 becomes an attractive approach for the development of molecule-based anti-cancer therapy. The past decade and half have witnessed tremendous progress in this area. This essay offers readers with a grand review on this progress with updated information about small molecule activators of p53 either still at bench work or in clinical trials.
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Affiliation(s)
- Daniel Nguyen
- Department of Biochemistry and Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, 1430 Tulane Ave, LA 70012, United States
| | - Wenjuan Liao
- Department of Biochemistry and Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, 1430 Tulane Ave, LA 70012, United States
| | - Shelya X Zeng
- Department of Biochemistry and Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, 1430 Tulane Ave, LA 70012, United States
| | - Hua Lu
- Department of Biochemistry and Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, 1430 Tulane Ave, LA 70012, United States.
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28
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Paget S, Dubuissez M, Dehennaut V, Nassour J, Harmon BT, Spruyt N, Loison I, Abbadie C, Rood BR, Leprince D. HIC1 (hypermethylated in cancer 1) SUMOylation is dispensable for DNA repair but is essential for the apoptotic DNA damage response (DDR) to irreparable DNA double-strand breaks (DSBs). Oncotarget 2017; 8:2916-2935. [PMID: 27935866 PMCID: PMC5356852 DOI: 10.18632/oncotarget.13807] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 11/23/2016] [Indexed: 11/25/2022] Open
Abstract
The tumor suppressor gene HIC1 (Hypermethylated In Cancer 1) encodes a transcriptional repressor mediating the p53-dependent apoptotic response to irreparable DNA double-strand breaks (DSBs) through direct transcriptional repression of SIRT1. HIC1 is also essential for DSB repair as silencing of endogenous HIC1 in BJ-hTERT fibroblasts significantly delays DNA repair in functional Comet assays. HIC1 SUMOylation favours its interaction with MTA1, a component of NuRD complexes. In contrast with irreparable DSBs induced by 16-hours of etoposide treatment, we show that repairable DSBs induced by 1 h etoposide treatment do not increase HIC1 SUMOylation or its interaction with MTA1. Furthermore, HIC1 SUMOylation is dispensable for DNA repair since the non-SUMOylatable E316A mutant is as efficient as wt HIC1 in Comet assays. Upon induction of irreparable DSBs, the ATM-mediated increase of HIC1 SUMOylation is independent of its effector kinase Chk2. Moreover, irreparable DSBs strongly increase both the interaction of HIC1 with MTA1 and MTA3 and their binding to the SIRT1 promoter. To characterize the molecular mechanisms sustained by this increased repression potential, we established global expression profiles of BJ-hTERT fibroblasts transfected with HIC1-siRNA or control siRNA and treated or not with etoposide. We identified 475 genes potentially repressed by HIC1 with cell death and cell cycle as the main cellular functions identified by pathway analysis. Among them, CXCL12, EPHA4, TGFβR3 and TRIB2, also known as MTA1 target-genes, were validated by qRT-PCR analyses. Thus, our data demonstrate that HIC1 SUMOylation is important for the transcriptional response to non-repairable DSBs but dispensable for DNA repair.
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Affiliation(s)
- Sonia Paget
- University Lille, CNRS, Institut Pasteur de Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, Lille, France
| | - Marion Dubuissez
- University Lille, CNRS, Institut Pasteur de Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, Lille, France
- Present Address: Maisonneuve-Rosemont Hospital Research Center, Maisonneuve-Rosemont Hospital, Boulevard l'Assomption Montreal, Canada
| | - Vanessa Dehennaut
- University Lille, CNRS, Institut Pasteur de Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, Lille, France
| | - Joe Nassour
- University Lille, CNRS, Institut Pasteur de Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, Lille, France
- Present Address: The Salk Institute for Biological Studies, Molecular and Cell Biology Department, La Jolla, California, USA
| | - Brennan T. Harmon
- Genomics Core, Children's National Medical Center, Washington DC, USA
| | - Nathalie Spruyt
- University Lille, CNRS, Institut Pasteur de Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, Lille, France
| | - Ingrid Loison
- University Lille, CNRS, Institut Pasteur de Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, Lille, France
| | - Corinne Abbadie
- University Lille, CNRS, Institut Pasteur de Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, Lille, France
| | - Brian R. Rood
- Center for Cancer and Immunology Research, Children's National Medical Center, Washington DC, USA
| | - Dominique Leprince
- University Lille, CNRS, Institut Pasteur de Lille, UMR 8161-M3T-Mechanisms of Tumorigenesis and Targeted Therapies, Lille, France
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29
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Zeng S, Yang Y, Cheng X, Zhou B, Li P, Zhao Y, Kong X, Xu Y. HIC1 epigenetically represses CIITA transcription in B lymphocytes. BIOCHIMICA ET BIOPHYSICA ACTA 2016; 1859:1481-1489. [PMID: 27720955 DOI: 10.1016/j.bbagrm.2016.10.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 10/05/2016] [Accepted: 10/05/2016] [Indexed: 02/06/2023]
Abstract
Differentiation of B lymphocytes into isotope-specific plasma cells represents a hallmark event in adaptive immunity. During B cell maturation, expression of the class II transactivator (CIITA) gene is down-regulated although the underlying epigenetic mechanism is not completely defined. Here we report that hypermethylated in cancer 1 (HIC1) was up-regulated in differentiating B lymphocytes paralleling CIITA repression. Over-expression of HIC1 directly repressed endogenous CIITA transcription in B cells. Reporter assay and chromatin immunoprecipitation (ChIP) assay confirmed that HIC1 bound to the proximal CIITA type III promoter (-545/-113); mutation of a conserved HIC1 site within this region abrogated CIITA trans-repression. More important, depletion of HIC1 with small interfering RNA (siRNA) restored CIITA expression in differentiating B cells. Mechanistically, HIC1 preferentially interacted with and recruited DNMT1 and DNMT3b to the CIITA promoter to synergistically repress CIITA transcription. On the contrary, silencing of DNMT1/DNMT3b or inhibition of DNMT activity with 5-aza-dC attenuated CIITA trans-repression. Therefore, our data identify HIC1 as a novel factor involved in B cell differentiation acting as an epigenetic repressor of CIITA transcription.
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Affiliation(s)
- Sheng Zeng
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Yuyu Yang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Xian Cheng
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China; Jiangsu Institute of Nuclear Medicine, Wuxi, China
| | - Bisheng Zhou
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Ping Li
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China; Department of Gastroenterology, Second Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Yuhao Zhao
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Xiaocen Kong
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China; Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
| | - Yong Xu
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China.
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30
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Le Douce V, Forouzanfar F, Eilebrecht S, Van Driessche B, Ait-Ammar A, Verdikt R, Kurashige Y, Marban C, Gautier V, Candolfi E, Benecke AG, Van Lint C, Rohr O, Schwartz C. HIC1 controls cellular- and HIV-1- gene transcription via interactions with CTIP2 and HMGA1. Sci Rep 2016; 6:34920. [PMID: 27725726 PMCID: PMC5057145 DOI: 10.1038/srep34920] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 09/21/2016] [Indexed: 02/06/2023] Open
Abstract
Among many cellular transcriptional regulators, Bcl11b/CTIP2 and HGMA1 have been described to control the establishment and the persistence of HIV-1 latency in microglial cells, the main viral reservoir in the brain. In this present work, we identify and characterize a transcription factor i.e. HIC1, which physically interacts with both Bcl11b/CTIP2 and HMGA1 to co-regulate specific subsets of cellular genes and the viral HIV-1 gene. Our results suggest that HIC1 represses Tat dependent HIV-1 transcription. Interestingly, this repression of Tat function is linked to HIC1 K314 acetylation status and to SIRT1 deacetylase activity. Finally, we show that HIC1 interacts and cooperates with HGMA1 to regulate Tat dependent HIV-1 transcription. Our results also suggest that HIC1 repression of Tat function happens in a TAR dependent manner and that this TAR element may serve as HIC1 reservoir at the viral promoter to facilitate HIC1/TAT interaction.
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Affiliation(s)
- Valentin Le Douce
- University of Strasbourg, EA7292, DHPI, Institut of Parasitology and tropical pathology Strasbourg, France.,University of Strasbourg, IUT Louis Pasteur, Schiltigheim, France.,Institut des Hautes Etudes Scientifiques-Centre National de la Recherche Scientifique, 35 route de Chartres, 91440 Bures sur Yvette, France
| | - Faezeh Forouzanfar
- University of Strasbourg, EA7292, DHPI, Institut of Parasitology and tropical pathology Strasbourg, France
| | - Sebastian Eilebrecht
- Institut Universitaire de France, Paris, France.,Université Libre de Bruxelles (ULB), Service of Molecular Virology, Institute for Molecular Biology and Medicine (IBMM), 12 rue des Profs Jeener et Brachet, 6041 Gosselies, Belgium
| | - Benoit Van Driessche
- Deutsches Krebsforschungszentrum, Im Neuenheimer Feld 242, Heidelberg 69120, Germany
| | - Amina Ait-Ammar
- University of Strasbourg, EA7292, DHPI, Institut of Parasitology and tropical pathology Strasbourg, France
| | - Roxane Verdikt
- Deutsches Krebsforschungszentrum, Im Neuenheimer Feld 242, Heidelberg 69120, Germany
| | - Yoshihito Kurashige
- CNRS UMR 7224, Université Pierre et Marie Curie, 7 quai Saint Bernard, 75005 Paris, France
| | - Céline Marban
- CNRS UMR 7224, Université Pierre et Marie Curie, 7 quai Saint Bernard, 75005 Paris, France
| | - Virginie Gautier
- Institut des Hautes Etudes Scientifiques-Centre National de la Recherche Scientifique, 35 route de Chartres, 91440 Bures sur Yvette, France
| | - Ermanno Candolfi
- University of Strasbourg, EA7292, DHPI, Institut of Parasitology and tropical pathology Strasbourg, France
| | - Arndt G Benecke
- Université Libre de Bruxelles (ULB), Service of Molecular Virology, Institute for Molecular Biology and Medicine (IBMM), 12 rue des Profs Jeener et Brachet, 6041 Gosselies, Belgium.,UCD Centre for Research in Infectious Diseases (CRID) School of Medicine and Medical Science University College Dublin, Ireland
| | - Carine Van Lint
- Deutsches Krebsforschungszentrum, Im Neuenheimer Feld 242, Heidelberg 69120, Germany
| | - Olivier Rohr
- University of Strasbourg, EA7292, DHPI, Institut of Parasitology and tropical pathology Strasbourg, France.,University of Strasbourg, IUT Louis Pasteur, Schiltigheim, France.,Inserm UMR 1121 Faculté de Chirurgie Dentaire Pavillon Leriche 1, place de l'Hôpital Strasbourg, France
| | - Christian Schwartz
- University of Strasbourg, EA7292, DHPI, Institut of Parasitology and tropical pathology Strasbourg, France.,University of Strasbourg, IUT Louis Pasteur, Schiltigheim, France
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Wu X, Cao N, Fenech M, Wang X. Role of Sirtuins in Maintenance of Genomic Stability: Relevance to Cancer and Healthy Aging. DNA Cell Biol 2016; 35:542-575. [DOI: 10.1089/dna.2016.3280] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Affiliation(s)
- Xiayu Wu
- School of Life Sciences, The Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, Yunnan Normal University, Kunming, Yunnan, China
| | - Neng Cao
- School of Life Sciences, The Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, Yunnan Normal University, Kunming, Yunnan, China
| | - Michael Fenech
- Genome Health and Personalized Nutrition, Commonwealth Scientific and Industrial Research Organization Food and Nutrition, Adelaide, South Australia, Australia
| | - Xu Wang
- School of Life Sciences, The Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, Yunnan Normal University, Kunming, Yunnan, China
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32
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Li P, Liu X, Dong ZM, Ling ZQ. Epigenetic silencing of HIC1 promotes epithelial-mesenchymal transition and drives progression in esophageal squamous cell carcinoma. Oncotarget 2016; 6:38151-65. [PMID: 26510908 PMCID: PMC4741990 DOI: 10.18632/oncotarget.5832] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Accepted: 09/28/2015] [Indexed: 12/12/2022] Open
Abstract
Downregulation of the novel tumor suppressor gene HIC1 (hypermethylated in cancer 1) occurs frequently in various tumors where it causes tumor progression and metastasis. In this study, we investigated a role of HIC1 in esophageal squamous cell carcinoma (ESCC) and the underlying mechanisms. Downregulation of HIC1 occurred in approximately 70% of primary ESCCs at both mRNA and protein level where it was associated significantly with vascular invasion, advanced clinical stage, lymph node metastasis, and poor disease free survival (DFS). The promoter methylation analyses suggested that loss of HIC1 expression was mediated by epigenetic mechanisms. Functional studies established that ectopic re-expression of HIC1 in ESCC cells inhibited cell proliferation, clonogenicity, cell motility, tumor formation and epithelial-mesenchymal transition (EMT). Our results decipher the mechanism through which HIC1 deficiency induce ESCC cells to undergo EMT and promote tumor progression and metastasis through activation of EphA2 signaling pathway. Together, loss of the regulation of EphA2 pathway through HIC1 epigenetic silencing could be an important mechanism in the ESCC progression. We identify a novel pathway that linking HIC1 downregulation to EphA2-inducing EMT in ESCC cells and may shed light on the development of novel anti-tumor therapeutics.
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Affiliation(s)
- Pei Li
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450052, China
| | - Xiang Liu
- Zhejiang Cancer Research Institute, Zhejiang Province Cancer Hospital, Zhejiang Cancer Center, Hangzhou 310022, China
| | - Zi-Ming Dong
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450052, China
| | - Zhi-Qiang Ling
- Zhejiang Cancer Research Institute, Zhejiang Province Cancer Hospital, Zhejiang Cancer Center, Hangzhou 310022, China
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33
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Manente AG, Pinton G, Zonca S, Tavian D, Habib T, Jithesh PV, Fennell D, Nilsson S, Moro L. KDM6B histone demethylase is an epigenetic regulator of estrogen receptor β expression in human pleural mesothelioma. Epigenomics 2016; 8:1227-38. [PMID: 27529370 DOI: 10.2217/epi-2016-0025] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
AIM To assess the correlation between KDM6B and estrogen receptor β (ERβ) expression in malignant pleural mesothelioma (MPM). MATERIALS & METHODS We evaluated gene expression by in silico analysis of microarray data, real-time PCR and western blot in MPM tumors and cell lines. RESULTS & CONCLUSION We report a strong positive correlation between the expression of KDM6B and ERβ in MPM tumors and cell lines. We describe that, in hypoxia, the HIF2α-KDM6B axis induces an epithelioid morphology and ERβ expression in biphasic MPM cells with estrogen receptor-negative phenotype. Reduced histone H3K27 tri-methylation confirms KDM6B activity under hypoxic conditions. Importantly, cells treated during reoxygenation with the selective ERβ agonist, KB9520, maintain ERβ expression and the less aggressive phenotype acquired in hypoxia.
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Affiliation(s)
- Arcangela G Manente
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Lgo Donegani 2, 28100 Novara, Italy
| | | | - Sara Zonca
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Lgo Donegani 2, 28100 Novara, Italy
| | - Daniela Tavian
- Laboratory of Cellular Biochemistry & Molecular Biology, CRIBENS, Catholic University of the Sacred Heart, 20145 Milan, Italy
| | - Tanwir Habib
- Sidra Medical & Research Center, P.O. Box 26999 Doha, Qatar
| | | | - Dean Fennell
- University of Leicester & Leicester University Hospitals, LE1 9HN, Leicester, UK
| | - Stefan Nilsson
- Department of Biosciences & Nutrition, Karolinska Institutet, S-141 57 Huddinge, Sweden
| | - Laura Moro
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Lgo Donegani 2, 28100 Novara, Italy
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Cheng G, He J, Zhang L, Ge S, Zhang H, Fan X. HIC1 modulates uveal melanoma progression by activating lncRNA-numb. Tumour Biol 2016; 37:12779-12789. [DOI: 10.1007/s13277-016-5243-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Accepted: 07/15/2016] [Indexed: 10/21/2022] Open
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Karimian A, Ahmadi Y, Yousefi B. Multiple functions of p21 in cell cycle, apoptosis and transcriptional regulation after DNA damage. DNA Repair (Amst) 2016; 42:63-71. [PMID: 27156098 DOI: 10.1016/j.dnarep.2016.04.008] [Citation(s) in RCA: 702] [Impact Index Per Article: 87.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 04/19/2016] [Accepted: 04/19/2016] [Indexed: 12/13/2022]
Abstract
An appropriate control over cell cycle progression depends on many factors. Cyclin-dependent kinase (CDK) inhibitor p21 (also known as p21(WAF1/Cip1)) is one of these factors that promote cell cycle arrest in response to a variety of stimuli. The inhibitory effect of P21 on cell cycle progression correlates with its nuclear localization. P21 can be induced by both p53-dependent and p53-independent mechanisms. Some other important functions attributed to p21 include transcriptional regulation, modulation or inhibition of apoptosis. These functions are largely dependent on direct p21/protein interactions and also on p21 subcellular localizations. In addition, p21 can play a role in DNA repair by interacting with proliferating cell nuclear antigen (PCNA). In this review, we will focus on the multiple functions of p21 in cell cycle regulation, apoptosis and gene transcription after DNA damage and briefly discuss the pathways and factors that have critical roles in p21 expression and activity.
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Affiliation(s)
- Ansar Karimian
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yasin Ahmadi
- Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bahman Yousefi
- Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Janeckova L, Kolar M, Svec J, Lanikova L, Pospichalova V, Baloghova N, Vojtechova M, Sloncova E, Strnad H, Korinek V. HIC1 Expression Distinguishes Intestinal Carcinomas Sensitive to Chemotherapy. Transl Oncol 2016; 9:99-107. [PMID: 27084425 PMCID: PMC4833890 DOI: 10.1016/j.tranon.2016.01.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/13/2016] [Accepted: 01/19/2016] [Indexed: 12/13/2022] Open
Abstract
Neoplastic growth is frequently associated with genomic DNA methylation that causes transcriptional silencing of tumor suppressor genes. We used a collection of colorectal polyps and carcinomas in combination with bioinformatics analysis of large datasets to study the expression and methylation of Hypermethylated in cancer 1 (HIC1), a tumor suppressor gene inactivated in many neoplasms. In premalignant stages, HIC1 expression was decreased, and the decrease was linked to methylation of a specific region in the HIC1 locus. However, in carcinomas, the HIC1 expression was variable and, in some specimens, comparable to healthy tissue. Importantly, high HIC1 production distinguished a specific type of chemotherapy-responsive tumors.
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Affiliation(s)
- Lucie Janeckova
- Department of Cell and Developmental Biology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Videnska 1083, 142 20 Prague 4, Czech Republic
| | - Michal Kolar
- Department of Cell and Developmental Biology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Videnska 1083, 142 20 Prague 4, Czech Republic
| | - Jiri Svec
- Department of Cell and Developmental Biology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Videnska 1083, 142 20 Prague 4, Czech Republic; Department of Radiotherapy and Oncology, Third Faculty of Medicine, Charles University, Prague, Srobarova 50, 100 34 Prague 4, Czech Republic
| | - Lucie Lanikova
- Department of Cell and Developmental Biology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Videnska 1083, 142 20 Prague 4, Czech Republic
| | - Vendula Pospichalova
- Department of Cell and Developmental Biology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Videnska 1083, 142 20 Prague 4, Czech Republic
| | - Nikol Baloghova
- Department of Cell and Developmental Biology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Videnska 1083, 142 20 Prague 4, Czech Republic
| | - Martina Vojtechova
- Department of Cell and Developmental Biology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Videnska 1083, 142 20 Prague 4, Czech Republic
| | - Eva Sloncova
- Department of Cell and Developmental Biology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Videnska 1083, 142 20 Prague 4, Czech Republic
| | - Hynek Strnad
- Department of Cell and Developmental Biology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Videnska 1083, 142 20 Prague 4, Czech Republic
| | - Vladimir Korinek
- Department of Cell and Developmental Biology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Videnska 1083, 142 20 Prague 4, Czech Republic; Division BIOCEV, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Videnska 1083, 142 20 Prague 4, Czech Republic.
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Analysis of UHRF1 expression in human ovarian cancer tissues and its regulation in cancer cell growth. Tumour Biol 2015; 36:8887-93. [PMID: 26070868 DOI: 10.1007/s13277-015-3638-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 06/03/2015] [Indexed: 12/31/2022] Open
Abstract
Ubiquitin-like with PHD and ring finger domains 1 (UHRF1), known as ICB90 or Np95, has been found to be overexpressed in numerous cancers. In this study, we evaluated the expression level of UHRF1 in ovarian cancer. UHRF1 levels in paired ovarian cancer tissues and adjacent normal tissues from 80 ovarian cancer patients were detected using relative quantitatively PCR and Western blot. Small interfering RNA (siRNA) was introduced in two human ovarian cancer cell lines (SKOV-3 and OVCAR-3) to downregulate the expression of UHRF1. The proliferation of siRNA-treated cells was examined using cell counting kit-8 (CCK-8) assay. The growth of these cells showed a remarkable decrease. Moreover, flow cytometric and Hoechst 33342 assays were used to detect the apoptosis. The diagnostic value of UHRF1 messenger RNA (mRNA) expression in ovarian cancer was estimated by receiver-operator characteristic (ROC) curve. The correlation between UHRF1 mRNA expression and clinicopathologic features of ovarian cancer patients was evaluated by χ (2) test. Our results demonstrated that both UHRF1 mRNA and protein were highly expressed in ovarian cancer tissues and significantly higher than that in adjacent normal tissues. Moreover, the inhibition of UHRF1 may lead to cells to undergo apoptosis. Thus, UHRF1 could act as a new oncogenic factor in ovarian cancer and be a potential molecular target for ovarian cancer gene therapy.
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Markowski J, Sieroń AL, Kasperczyk K, Ciupińska-Kajor M, Auguściak-Duma A, Likus W. Expression of the tumor suppressor gene hypermethylated in cancer 1 in laryngeal carcinoma. Oncol Lett 2015; 9:2299-2302. [PMID: 26137060 DOI: 10.3892/ol.2015.2983] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 01/22/2015] [Indexed: 12/20/2022] Open
Abstract
Hypermethylated in cancer 1 (HIC1) is a putative suppressor gene, cooperating with TP53 in the regulation of apoptosis. The promoter site of this gene contains CpG islands susceptible to methylation. Altered methylation leads to the silencing of HIC1. Persistent loss of HIC1 function reflects the attenuation of proapoptotic characteristics of TP53 and may constitute the background for carcinogenesis. Altered methylation profiles along with diminished expression of HIC1 were documented in a number of solid neoplasms. The aim of this study was to evaluate the expression of the HIC1 gene in laryngeal carcinoma. RNA was extracted from samples of laryngeal cancer and corresponding healthy tissues of 21 patients with advanced laryngeal cancer (T3-T4). The amount of RNA (cDNA) was evaluated using reverse transcription-quantitative polymerase chain reaction with GADPH as the reference gene. Data demonstrated that HIC1 expression was significantly reduced in laryngeal cancer tissues. The relative expression of HIC1 was found to be ~40% lower in tumor samples compared to that in healthy controls. The median tumor/normal tissue ratio for HIC1 was 0.615. These results suggest that low HIC1 expression may be associated with neoplastic transformation in the larynx.
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Affiliation(s)
- Jarosław Markowski
- Department of Laryngology, School of Medicine in Katowice, Medical University of Silesia, Katowice 40-027, Poland
| | - Aleksander L Sieroń
- Department of Molecular Biology and Genetics, School of Medicine in Katowice, Medical University of Silesia, Katowice 40-752, Poland ; CoE Research and Teaching of Molecular Biology of Matrix and Nanotechnology, Network of CoE BioMedTech Silesia, Katowice 40-752, Poland
| | - Katarzyna Kasperczyk
- Department of Laryngology, School of Medicine in Katowice, Medical University of Silesia, Katowice 40-027, Poland
| | - Monika Ciupińska-Kajor
- Department of Pathomorphology, School of Medicine in Katowice, Medical University of Silesia, Katowice 40-752, Poland
| | - Aleksandra Auguściak-Duma
- Department of Molecular Biology and Genetics, School of Medicine in Katowice, Medical University of Silesia, Katowice 40-752, Poland
| | - Wirginia Likus
- Department of Human Anatomy, School of Medicine in Katowice, Medical University of Silesia, Katowice 40-752, Poland
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Kumar S. P53 induction accompanying G2/M arrest upon knockdown of tumor suppressor HIC1 in U87MG glioma cells. Mol Cell Biochem 2014; 395:281-90. [PMID: 24992983 DOI: 10.1007/s11010-014-2137-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 06/17/2014] [Indexed: 10/25/2022]
Abstract
Hypermethylated in cancer 1 (HIC1) is a novel tumor suppressor gene (tsg) frequently silenced by epigenetic modification, predominantly by methylation in different tumors. HIC1 functionally co-operates with p53 in cultured cells as well as in transgenic animals to suppress tumors and has binding site on its promoter. Its over expression often leads to cell cycle arrests. Although HIC1 proven to have role as tsg, its regulation to cell cycle and dependency upon p53 is grossly unknown. In this study, we investigated the role of HIC1 in cell cycle and proliferation of glioma cell line U87MG which has wild type p53, in both serum-containing and serum-deprived medium. Microscopic analysis and MTT assay showed reduced cell number and rate of proliferation upon HIC1 knock down compared to control siRNA (p = 0.025) and untreated cells (p = 0.03) in serum-containing medium and serum-free medium (p = 0.014 vs control siRNA; p = 0.018 vs untreated cells). Cell cycle analysis revealed an arrest at G2/M phase of cell cycle with no demonstrable increase in apoptosis with both medium. An increased expression of p53 concomitant with HIC1 knockdown was observed. Furthermore P21, a p53 responsive gene, along with p27 was significantly increased in comparison with controls. Our results demonstrated an important role of HIC1 for the normal progression of cell cycle, and at molecular level, it could affect the homeostasis of p53 as well as number of cell cycle-related genes, which may or may not be directly linked to p53.
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Affiliation(s)
- Sanjay Kumar
- Biomolecular Science Centre, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Bld 20, 4110 Libra Drive, Orlando, FL, 32816, USA,
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Casadio V, Molinari C, Calistri D, Tebaldi M, Gunelli R, Serra L, Falcini F, Zingaretti C, Silvestrini R, Amadori D, Zoli W. DNA Methylation profiles as predictors of recurrence in non muscle invasive bladder cancer: an MS-MLPA approach. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2013; 32:94. [PMID: 24252461 PMCID: PMC4176288 DOI: 10.1186/1756-9966-32-94] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Accepted: 11/07/2013] [Indexed: 01/06/2023]
Abstract
Background Although non muscle invasive bladder cancer (NMIBC) generally has a good long-term prognosis, up to 80% of patients will nevertheless experience local recurrence after the primary tumor resection. The search for markers capable of accurately identifying patients at high risk of recurrence is ongoing. We retrospectively evaluated the methylation status of a panel of 24 tumor suppressor genes (TIMP3, APC, CDKN2A, MLH1, ATM, RARB, CDKN2B, HIC1, CHFR, BRCA1, CASP8, CDKN1B, PTEN, BRCA2, CD44, RASSF1, DAPK1, FHIT, VHL, ESR1, TP73, IGSF4, GSTP1 and CDH13) in primary lesions to obtain information about their role in predicting local recurrence in NMIBC. Methods Formaldehyde-fixed paraffin-embedded (FFPE) samples from 74 patients operated on for bladder cancer were analyzed by methylation-specific multiplex ligation-dependent probe amplification (MS-MLPA): 36 patients had relapsed and 38 were disease-free at the 5-year follow up. Methylation status was considered as a dichotomous variable and genes showing methylation ≥20% were defined as “positive”. Results Methylation frequencies were higher in non recurring than recurring tumors. A statistically significant difference was observed for HIC1 (P = 0.03), GSTP1 (P = 0.02) and RASSF1 (P = 0.03). The combination of the three genes showed 78% sensitivity and 66% specificity in identifying recurrent patients, with an overall accuracy of 72%. Conclusions Our preliminary data suggest a potential role of HIC1, GSTP1 and RASSF1 in predicting local recurrence in NMIBC. Such information could help clinicians to identify patients at high risk of recurrence who require close monitoring during follow up.
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Affiliation(s)
- Valentina Casadio
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Via P, Maroncelli 40, Meldola 47014, Italy.
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Peluso MEM, Munnia A, Bollati V, Srivatanakul P, Jedpiyawongse A, Sangrajrang S, Ceppi M, Giese RW, Boffetta P, Baccarelli AA. Aberrant methylation of hypermethylated-in-cancer-1 and exocyclic DNA adducts in tobacco smokers. Toxicol Sci 2013; 137:47-54. [PMID: 24154486 DOI: 10.1093/toxsci/kft241] [Citation(s) in RCA: 206] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Tobacco smoke has been shown to produce both DNA damage and epigenetic alterations. However, the potential role of DNA damage in generating epigenetic changes is largely underinvestigated in human studies. We examined the effects of smoking on the levels of DNA methylation in genes for tumor protein p53, cyclin-dependent kinase inhibitor2A, hypermethylated-in-cancer-1 (HIC1), interleukin-6, Long Interspersed Nuclear Element type1, and Alu retrotransposons in blood of 177 residents in Thailand using bisulfite-PCR andpyrosequencing. Then, we analyzed the relationship of this methylation with the oxidative DNA adduct, M₁dG (a malondialdehyde adduct), measured by ³²P-postlabeling. Multivariate statistical analyses showed that HIC1 methylation levels were significantly increased in smokers compared with nonsmokers (p ≤ .05). A dose response was observed, with the highest HIC1 methylation levels in smokers of ≥ 10 cigarettes/day relative to nonsmokers and intermediate values in smokers of 1-9 cigarettes/day (p for trend ≤ .001). No additional relationships were observed. We also evaluated correlations between M₁dG and the methylation changes at each HIC1 CpG site individually. The levels of this adduct in smokers showed a significant linear correlation with methylation at one of the 3 CpGs evaluated in HIC1: hypermethylation at position 1904864340 was significantly correlated with the adduct M₁dG (covariate-adjusted regression coefficient (β) = .224 ± .101 [SE], p ≤ .05). No other correlations were detected. Our study extends prior work by others associating hypermethylation of HIC1 with smoking; shows that a very specific hypermethylation event can arise from smoking; and encourages future studies that explore a possible role for M₁dG in connecting smoking to this latter hypermethylation.
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Affiliation(s)
- Marco E M Peluso
- * Cancer Risk Factor Branch, Cancer Prevention and Research Institute, Florence, Italy
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Alvarez MC, Ladeira MSP, Scaletsky ICA, Pedrazzoli J, Ribeiro ML. Methylation pattern of THBS1, GATA-4, and HIC1 in pediatric and adult patients infected with Helicobacter pylori. Dig Dis Sci 2013; 58:2850-7. [PMID: 23765259 DOI: 10.1007/s10620-013-2742-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Accepted: 05/29/2013] [Indexed: 12/20/2022]
Abstract
BACKGROUND Helicobacter pylori infection is usually acquired in childhood and persists into adulthood if untreated. The bacterium induces a chronic inflammatory response, which is associated with epigenetic alterations in oncogenes, tumor-suppressor genes, cell-cycle regulators, and cell-adhesion molecules. AIM The aim of this study was to analyze the effect of H. pylori infection on the methylation status of Thrombospondin-1 (THBS1), Hypermethylated in cancer 1 (HIC1) and Gata binding protein-4 (GATA-4) in gastric biopsy samples from children and adults infected or uninfected with the bacterium and in samples obtained from gastric cancer patients. METHODS The methylation pattern was analyzed with methylation-specific PCR. RESULTS Our results showed that H. pylori infection was associated with methylation of the promoter regions of the THBS1 and GATA-4 genes in pediatric and adult samples (p < 0.01). HIC1 showed the lowest level of methylation, which was not an early event during gastric carcinogenesis. CONCLUSIONS The results from this study indicate that methylation of THBS1 and GATA-4 occurs in the early stages of chronic gastritis and gastric cancer in association with H. pylori infection; however, in gastric cancer samples, other mechanisms cooperate with the down-regulation of these genes. Methylation of HIC1 may not be the principal mechanism implicated in its down-regulation in gastric cancer samples.
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Affiliation(s)
- Marisa Claudia Alvarez
- Unidade Integrada de Farmacologia e Gastroenterologia, Universidade São Francisco, Av. São Francisco de Assis, 218. Jd. São José, Bragança Paulista, SP, Brazil
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Marescalco MS, Capizzi C, Condorelli DF, Barresi V. Genome-wide analysis of recurrent copy-number alterations and copy-neutral loss of heterozygosity in head and neck squamous cell carcinoma. J Oral Pathol Med 2013; 43:20-7. [DOI: 10.1111/jop.12087] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2013] [Indexed: 02/02/2023]
Affiliation(s)
| | - Carmela Capizzi
- Scuola Superiore di Catania; University of Catania; Catania Italy
| | - Daniele Filippo Condorelli
- Scuola Superiore di Catania; University of Catania; Catania Italy
- Department of Bio-Medical Sciences; Section of Biochemistry; University of Catania; Catania Italy
| | - Vincenza Barresi
- Scuola Superiore di Catania; University of Catania; Catania Italy
- Department of Bio-Medical Sciences; Section of Biochemistry; University of Catania; Catania Italy
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Dehennaut V, Loison I, Dubuissez M, Nassour J, Abbadie C, Leprince D. DNA double-strand breaks lead to activation of hypermethylated in cancer 1 (HIC1) by SUMOylation to regulate DNA repair. J Biol Chem 2013; 288:10254-64. [PMID: 23417673 PMCID: PMC3624409 DOI: 10.1074/jbc.m112.421610] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2012] [Revised: 02/14/2013] [Indexed: 11/06/2022] Open
Abstract
HIC1 (hypermethylated in cancer 1) is a tumor suppressor gene frequently epigenetically silenced in human cancers. HIC1 encodes a transcriptional repressor involved in the regulation of growth control and DNA damage response. We previously demonstrated that HIC1 can be either acetylated or SUMOylated on lysine 314. This deacetylation/SUMOylation switch is governed by an unusual complex made up of SIRT1 and HDAC4 which deacetylates and thereby favors SUMOylation of HIC1 by a mechanism not yet fully deciphered. This switch regulates the interaction of HIC1 with MTA1, a component of the NuRD complex and potentiates the repressor activity of HIC1. Here, we show that HIC1 silencing in human fibroblasts impacts the repair of DNA double-strand breaks whereas ectopic expression of wild-type HIC1, but not of nonsumoylatable mutants, leads to a reduced number of γH2AX foci induced by etoposide treatment. In this way, we demonstrate that DNA damage leads to (i) an enhanced HDAC4/Ubc9 interaction, (ii) the activation of SIRT1 by SUMOylation (Lys-734), and (iii) the SUMO-dependent recruitment of HDAC4 by SIRT1 which permits the deacetylation/SUMOylation switch of HIC1. Finally, we show that this increase of HIC1 SUMOylation favors the HIC1/MTA1 interaction, thus demonstrating that HIC1 regulates DNA repair in a SUMO-dependent way. Therefore, epigenetic HIC1 inactivation, which is an early step in tumorigenesis, could contribute to the accumulation of DNA mutations through impaired DNA repair and thus favor tumorigenesis.
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Affiliation(s)
- Vanessa Dehennaut
- From the CNRS-UMR 8161, Institut de Biologie de Lille, Université de Lille Nord de France, Institut Pasteur de Lille, IFR 142, 1 rue Calmette, BP447, 59017 Lille Cedex, France
| | - Ingrid Loison
- From the CNRS-UMR 8161, Institut de Biologie de Lille, Université de Lille Nord de France, Institut Pasteur de Lille, IFR 142, 1 rue Calmette, BP447, 59017 Lille Cedex, France
| | - Marion Dubuissez
- From the CNRS-UMR 8161, Institut de Biologie de Lille, Université de Lille Nord de France, Institut Pasteur de Lille, IFR 142, 1 rue Calmette, BP447, 59017 Lille Cedex, France
| | - Joe Nassour
- From the CNRS-UMR 8161, Institut de Biologie de Lille, Université de Lille Nord de France, Institut Pasteur de Lille, IFR 142, 1 rue Calmette, BP447, 59017 Lille Cedex, France
| | - Corinne Abbadie
- From the CNRS-UMR 8161, Institut de Biologie de Lille, Université de Lille Nord de France, Institut Pasteur de Lille, IFR 142, 1 rue Calmette, BP447, 59017 Lille Cedex, France
| | - Dominique Leprince
- From the CNRS-UMR 8161, Institut de Biologie de Lille, Université de Lille Nord de France, Institut Pasteur de Lille, IFR 142, 1 rue Calmette, BP447, 59017 Lille Cedex, France
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Rood BR, Leprince D. Deciphering HIC1 control pathways to reveal new avenues in cancer therapeutics. Expert Opin Ther Targets 2013; 17:811-27. [PMID: 23566242 DOI: 10.1517/14728222.2013.788152] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION The tumor suppressor gene HIC1 (Hypermethylated in Cancer 1), which encodes a transcriptional repressor with multiple partners and multiple targets, is epigenetically silenced but not mutated in tumors. HIC1 has broad biological roles during normal development and is implicated in many canonical processes of cancer such as control of cell growth, cell survival upon genotoxic stress, cell migration, and motility. AREAS COVERED The HIC1 literature herein discussed includes its discovery as a candidate tumor suppressor gene hypermethylated or deleted in many human tumors, animal models establishing it as tumor suppressor gene, its role as a sequence-specific transcriptional repressor recruiting several chromatin regulatory complexes, its cognate target genes, and its functional roles in normal tissues. Finally, this review discusses how its loss of function contributes to the early steps in tumorigenesis. EXPERT OPINION Given HIC1's ability to direct repressive complexes to sequence-specific binding sites associated with its target genes, its loss results in specific changes in the transcriptional program of the cell. An understanding of this program through identification of HIC1's target genes and their involvement in feedback loops and cell process regulation will yield the ability to leverage this knowledge for therapeutic translation.
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Affiliation(s)
- Brian R Rood
- Center for Cancer and Blood Disorders, Children's National Medical Center, Division of Oncology, 111 Michigan Ave. NW, Washington, DC 20010, USA
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Developmentally programmed 3' CpG island methylation confers tissue- and cell-type-specific transcriptional activation. Mol Cell Biol 2013; 33:1845-58. [PMID: 23459939 DOI: 10.1128/mcb.01124-12] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
During development, a small but significant number of CpG islands (CGIs) become methylated. The timing of developmentally programmed CGI methylation and associated mechanisms of transcriptional regulation during cellular differentiation, however, remain poorly characterized. Here, we used genome-wide DNA methylation microarrays to identify epigenetic changes during human embryonic stem cell (hESC) differentiation. We discovered a group of CGIs associated with developmental genes that gain methylation after hESCs differentiate. Conversely, erasure of methylation was observed at the identified CGIs during subsequent reprogramming to induced pluripotent stem cells (iPSCs), further supporting a functional role for the CGI methylation. Both global gene expression profiling and quantitative reverse transcription-PCR (RT-PCR) validation indicated opposing effects of CGI methylation in transcriptional regulation during differentiation, with promoter CGI methylation repressing and 3' CGI methylation activating transcription. By studying diverse human tissues and mouse models, we further confirmed that developmentally programmed 3' CGI methylation confers tissue- and cell-type-specific gene activation in vivo. Importantly, luciferase reporter assays provided evidence that 3' CGI methylation regulates transcriptional activation via a CTCF-dependent enhancer-blocking mechanism. These findings expand the classic view of mammalian CGI methylation as a mechanism for transcriptional silencing and indicate a functional role for 3' CGI methylation in developmental gene regulation.
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47
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Zheng J, Wang J, Sun X, Hao M, Ding T, Xiong D, Wang X, Zhu Y, Xiao G, Cheng G, Zhao M, Zhang J, Wang J. HIC1 Modulates Prostate Cancer Progression by Epigenetic Modification. Clin Cancer Res 2013; 19:1400-10. [PMID: 23340301 DOI: 10.1158/1078-0432.ccr-12-2888] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Jianghua Zheng
- Department of Biochemistry and Molecular Cell Biology, Shanghai Jiao Tong University School of Medicine, China
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Dehennaut V, Loison I, Boulay G, Van Rechem C, Leprince D. Identification of p21 (CIP1/WAF1) as a direct target gene of HIC1 (Hypermethylated In Cancer 1). Biochem Biophys Res Commun 2013. [DOI: 10.1016/j.bbrc.2012.11.045] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zheng J, Xiong D, Sun X, Wang J, Hao M, Ding T, Xiao G, Wang X, Mao Y, Fu Y, Shen K, Wang J. Signification of Hypermethylated in Cancer 1 (HIC1) as Tumor Suppressor Gene in Tumor Progression. CANCER MICROENVIRONMENT : OFFICIAL JOURNAL OF THE INTERNATIONAL CANCER MICROENVIRONMENT SOCIETY 2012; 5:285-93. [PMID: 22528874 PMCID: PMC3460058 DOI: 10.1007/s12307-012-0103-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Accepted: 03/28/2012] [Indexed: 12/30/2022]
Abstract
Hypermethylated in cancer 1(HIC1) was identified as a strong suppressor gene in chromosome region 17p13.3 telomeric to TP53. This gene encodes a transcriptional repressor and is ubiquitously expressed in normal tissues but downexpressed in different tumor tissues where it is hypermethylated. The hypermethylation of this chromosomal region leads to epigenetic inactivation of HIC1, which would prompt cancer cells to alter survival and signaling pathways or specific transcription factors during the period of tumorigenesis. In vitro, HIC1 function is mainly a sequence-specific transcriptional repressor interacting with a still growing range of histone deacetylase(HDAC)-dependent and HDAC-independent corepressor complexes. Furthermore, a role for HIC1 in tumor development is firmly supported by Hic1 deficient mouse model and two double heterozygote models cooperate with p53 and Ptch1. Notably, our findings suggest that potential factors derived from tumor microenviroment may play a role in modulating HIC1 expression in tumor cells by epigenetic modification, which is responsible for tumor progression. In this review, we will describe genomic and proteinic structure of HIC1, and summary the potential role of HIC1 in human various solid tumors and leukemia, and explore the influence of tumor microenviroment on inducing HIC1 expression in tumor cells.
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Affiliation(s)
- Jianghua Zheng
- Department of Biochemistry and Molecular & Cell Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Dan Xiong
- Department of Biochemistry and Molecular & Cell Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Xueqing Sun
- Department of Biochemistry and Molecular & Cell Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Jinglong Wang
- Department of Biochemistry and Molecular & Cell Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Mingang Hao
- Department of Biochemistry and Molecular & Cell Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Tao Ding
- Department of Urological Surgery, Shanghai the Tenth People’s Hospital of Tong Ji University, Shanghai, 200072 China
| | - Gang Xiao
- Department of Biochemistry and Molecular & Cell Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Xiumin Wang
- Department of Biochemistry and Molecular & Cell Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Yan Mao
- Shanghai Ruijin Hospital, Comprehensive Breast Health Center, Shanghai, 200025 China
| | - Yuejie Fu
- Department of Thoracic Surgery, RenJi Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Kunwei Shen
- Shanghai Ruijin Hospital, Comprehensive Breast Health Center, Shanghai, 200025 China
| | - Jianhua Wang
- Department of Biochemistry and Molecular & Cell Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
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Zhao G, Qin Q, Zhang J, Liu Y, Deng S, Liu L, Wang B, Tian K, Wang C. Hypermethylation of HIC1 promoter and aberrant expression of HIC1/SIRT1 might contribute to the carcinogenesis of pancreatic cancer. Ann Surg Oncol 2012; 20 Suppl 3:S301-11. [PMID: 22552606 DOI: 10.1245/s10434-012-2364-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2011] [Indexed: 11/18/2022]
Abstract
BACKGROUND DNA hypermethylation is proved to be involved in carcinogenesis. Because chronic pancreatitis (CP) is a consistent risk factor for pancreatic cancer, the possible alteration and tumor contribute effects of hypermethylated in cancer-1 (HIC1) promoter methylation in CP was investigated. METHODS Methylation of HIC1 promoter HIC1 and SIRT1 expression were detected in human normal pancreas (NP), CP and pancreatic adenocarcinoma tissues. Furthermore, HIC1/SIRT1 pathway was regulated by demethylating reagent and exogenous expression in PANC-1, BxPC-3 and AsPC-1 cell lines, cell biology behavior including proliferation, apoptosis, cell cycle and senescence were detected. RESULTS The methylation of HIC1 promoter was demonstrated in 70.3 % pancreatic carcinoma (45 of 64), 47.5 % CP (19 of 40) and 11.4 % NP tissues (4 of 35). Moreover, hypermethylation of HIC1 promoter and deregulation of HIC1 expression in pancreatic cancer were significantly related to high-stage tumor and older patient age. HIC1 promoter hypermethylation was also observed in pancreatic cancer cell lines including PANC-1, BxPC-3 and AsPC-1. Restoration of HIC1 function with 5-aza-dC treatment or pCDNA3FlagHIC1 plasmid transfection leaded to a reduction in cell proliferation, obvious cell senescence, cell cycle arrest and apoptosis, accompanied with acetylated p53 and p21(WAF1 of Cip1) upregulation. While after further transfected with pCDNA3FlagSIRT1 plasmid, the growth inhibition, senescence and cycle arrest without apoptosis were partially rescued with deregulated acetylated p53 and p21(WAF1 of Cip1). CONCLUSIONS Our results indicate that hypermethylation of HIC1 promoter in CP may contribute to the aberrant expression of HIC1/SIRT1 pathway and then involve in the pancreatic carcinogenesis.
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Affiliation(s)
- Gang Zhao
- Pancreatic Disease Institute, Union Hospital, Wuhan City, Hubei Province, China,
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