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De S, Kitsou C, Sonenshine DE, Pedra JHF, Fikrig E, Kassis JA, Pal U. Epigenetic Regulation of Tick Biology and Vectorial Capacity. Trends Genet 2020; 37:8-11. [PMID: 33020021 DOI: 10.1016/j.tig.2020.09.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/11/2020] [Accepted: 09/14/2020] [Indexed: 11/29/2022]
Abstract
Ticks exist across diverse environments and transmit numerous pathogens. Due to their long and unique life cycles, these arthropods likely evolved robust epigenetic mechanisms that provide sustainable responses and buffers against extreme environmental conditions. Herein, we highlight how the study of the epigenetic basis of tick biology and vectorial capacity will enrich our knowledge of tick-borne infections.
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Affiliation(s)
- Sandip De
- Department of Veterinary Medicine, University of Maryland, College Park, MD, USA
| | - Chrysoula Kitsou
- Department of Veterinary Medicine, University of Maryland, College Park, MD, USA
| | - Daniel E Sonenshine
- Laboratory for Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA; Department of Biological Sciences, Old Dominion University, Norfolk, VA, USA
| | - Joao H F Pedra
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Erol Fikrig
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA; Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - Judith A Kassis
- Eunice Kennedy Shriver National Institute of Child Health and Human Development National Institutes of Health, Bethesda, MD, USA
| | - Utpal Pal
- Department of Veterinary Medicine, University of Maryland, College Park, MD, USA; Virginia-Maryland College of Veterinary Medicine, College Park, MD, USA.
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Liu S, Pan C, Tang Y, Chen F, Yang M, Wang KJ. Identification of novel long non-coding RNAs involved in bisphenol A induced immunotoxicity in fish primary macrophages. FISH & SHELLFISH IMMUNOLOGY 2020; 100:152-160. [PMID: 32147374 DOI: 10.1016/j.fsi.2020.03.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 02/19/2020] [Accepted: 03/04/2020] [Indexed: 06/10/2023]
Abstract
Bisphenol A (BPA), a well-known environmental endocrine-disrupting chemical (EDC), could pose a great toxicity risk to aquatic organisms. The present study aimed to evaluate the underlying role of long non-coding RNAs (lncRNAs) in BPA-induced immunotoxicity in head kidney (HK) macrophages of the red common carp (Cyprinus carpio), using lncRNA-RNA sequencing (RNA-Seq). In BPA-exposed HK macrophages group, 2,095 and 1,138 differentially expressed mRNAs (DEGs) and lncRNAs (DE-lncRNAs) were obtained, respectively, compared with controls. The qRT-PCR validation results of DEGs and DE-lncRNAs were similar to the RNA-Seq results. The KEGG analysis of DEGs and target genes of DE-lncRNAs have shown that some immune-related signaling pathways, including NF-kappa B, Toll-like receptor, B-cell receptor, Jak-STAT, and Hippo signaling pathways, were severely disrupted by BPA exposure. Moreover, we observed the synergic regulation of some mRNAs involved in immune response such as two hub genes traf6 and mapk1/3 and their upstream lncRNAs in HK macrophages upon the BPA exposure or its analogue bisphenol S (BPS) exposure. This suggested the dysregulation of lncRNAs by BPA or BPS may lead to a change in the expression of hub genes, which affects the cross-talk of various signaling pathways by interaction with other network genes. In conclusion, the present study demonstrates the potential role of lncRNAs in immunotoxicity of bisphenol compounds in red common carp HK macrophages, and our results provide evidence for further exploring lncRNA's role in EDC-induced toxicity in aquatic organisms.
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Affiliation(s)
- Shuai Liu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
| | - Chenyuan Pan
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
| | - Yi Tang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
| | - Fangyi Chen
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, Fujian, 361005, China.
| | - Ming Yang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
| | - Ke-Jian Wang
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, Fujian, 361005, China.
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Wang X, Fan H, Xu C, Jiang G, Wang H, Zhang J. KDM3B suppresses APL progression by restricting chromatin accessibility and facilitating the ATRA-mediated degradation of PML/RARα. Cancer Cell Int 2019; 19:256. [PMID: 31592194 PMCID: PMC6778369 DOI: 10.1186/s12935-019-0979-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 09/26/2019] [Indexed: 12/01/2022] Open
Abstract
Background A hallmark of acute promyelocytic leukemia (APL) is the expression of PML/RARα fusion protein. Treatment with all-trans retinoic acid (ATRA) results in the terminal differentiation of neutrophil granulocytes. However, the underlying mechanisms remain largely unknown. Here, we identify and elucidate a novel differentiation-suppressive model of APL involving the histone demethylase KDM3B, which has been identified as a suppressor of the tumor genes involved in hematopoietic malignancies. Methods First, we established a KDM3B knockdown NB4 cell model to determine the functional characteristics of KDM3B by cell proliferation assay and flow cytometry. Then, we performed ChIP-seq and ATAC-seq to search for potential relationships among KDM3B, histone modification (H3K9me1/me2) and the chromatin state. Finally, molecular biological techniques and a multi-omics analysis were used to explore the role of KDM3B in differentiation of the leukemia cells after ATRA treatment. Results We found that knocking down KDM3B contributed to the growth of NB4 APL cells via the promotion of cell-cycle progression and blocked granulocytic differentiation. Through global and molecular approaches, we provided futher evidence that knocking down KDM3B altered the global distribution of H3K9me1/me2 and increased the chromatin accessibility. Moreover, knocking down KDM3B inhibited the ATRA-induced degradation of the PML/RARα oncoprotein. Conclusion Our study suggested that KDM3B was able to inhibit APL progression by maintaining chromatin in a compact state and facilitating the ATRA-mediated degradation of PML/RARα. Taken together, the results show that KDM3B may be an alternative target for the treatment regimens and the targeted therapy for APL by sustaining the function of PML/RARα fusion protein.
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Affiliation(s)
- Xinrui Wang
- 1State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Huiyong Fan
- 1State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Congling Xu
- 1State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Guojuan Jiang
- 1State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Haiwei Wang
- 2Institute of Health Sciences, Shanghai Institutes for Biological Sciences and Graduate School, Chinese Academy of Sciences, Shanghai, 200025 China
| | - Ji Zhang
- 1State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
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Cheloufi S, Hochedlinger K. Emerging roles of the histone chaperone CAF-1 in cellular plasticity. Curr Opin Genet Dev 2017; 46:83-94. [PMID: 28692904 PMCID: PMC5813839 DOI: 10.1016/j.gde.2017.06.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 06/07/2017] [Accepted: 06/09/2017] [Indexed: 10/19/2022]
Abstract
During embryonic development, cells become progressively restricted in their differentiation potential. This is thought to be regulated by dynamic changes in chromatin structure and associated modifications, which act together to stabilize distinct specialized cell lineages. Remarkably, differentiated cells can be experimentally reprogrammed to a stem cell-like state or to alternative lineages. Thus, cellular reprogramming provides a valuable platform to study the mechanisms that normally safeguard cell identity and uncover factors whose manipulation facilitates cell fate transitions. Recent work has identified the chromatin assembly factor complex CAF-1 as a potent barrier to cellular reprogramming. In addition, CAF-1 has been implicated in the reversion of pluripotent cells to a totipotent-like state and in various lineage conversion paradigms, suggesting that modulation of CAF-1 levels may endow cells with a developmentally more plastic state. Here, we review these exciting results, discuss potential mechanisms and speculate on the possibility of exploiting chromatin assembly pathways to manipulate cell identity.
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Affiliation(s)
- Sihem Cheloufi
- Department of Molecular Biology, Massachusetts General Hospital, 185 Cambridge Street, Boston, MA 02114, USA; Center for Regenerative Medicine, Massachusetts General Hospital, 185 Cambridge Street, Boston, MA 02114, USA; Cancer Center, Massachusetts General Hospital, 185 Cambridge Street, Boston, MA 02114, USA; Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA; Harvard Stem Cell Institute, 1350 Massachusetts Avenue, Cambridge, MA 02138, USA
| | - Konrad Hochedlinger
- Department of Molecular Biology, Massachusetts General Hospital, 185 Cambridge Street, Boston, MA 02114, USA; Center for Regenerative Medicine, Massachusetts General Hospital, 185 Cambridge Street, Boston, MA 02114, USA; Cancer Center, Massachusetts General Hospital, 185 Cambridge Street, Boston, MA 02114, USA; Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA; Harvard Stem Cell Institute, 1350 Massachusetts Avenue, Cambridge, MA 02138, USA.
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