PMID- 32735129 OWN - NLM STAT- MEDLINE DCOM- 20210902 LR - 20220729 IS - 1477-0903 (Electronic) IS - 0960-3271 (Linking) VI - 40 IP - 1 DP - 2021 Jan TI - Arsenite induces dysfunction of regulatory T cells through acetylation control of the Foxp3 promoter. PG - 35-46 LID - 10.1177/0960327120934533 [doi] AB - Arsenic is known to cause damage to the body's immune system by inducing epigenetic changes. However, the molecular mechanism of this damage remains elusive. Here, we report that arsenic disrupts the morphology of lymphocytes, decreases cell viability, and results in abnormal proportions of T lymphocyte subsets. Moreover, our results revealed that arsenic can reduce global acetylation of histone H4 at K16 (H4K16 ac) in lymphocytes via decreasing the level of males absent on the first but upregulates mRNA and protein levels of the forkhead/winged-helix box P3 (Foxp3) gene by increasing the acetylation of histone H4 at K16 (H4K16) at the promoter of Foxp3. Finally, arsenic-induced dysfunction of regulatory T cells (Tregs) could be ameliorated by trichostatin A. Our research indicates that arsenic-induced immunosuppressive effect in human lymphocytes may be related to the acetylation of H4K16 at the promoter of Foxp3 and that histone deacetylase inhibitors may play a role in the prevention and treatment of immune injury caused by arsenic. FAU - Chen, J AU - Chen J AD - Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, 74628Guizhou Medical University, Guiyang, China. FAU - Jiang, J AU - Jiang J AD - Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, 74628Guizhou Medical University, Guiyang, China. FAU - Liu, Y AU - Liu Y AD - Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, 74628Guizhou Medical University, Guiyang, China. FAU - Ye, Y AU - Ye Y AD - Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, 74628Guizhou Medical University, Guiyang, China. FAU - Ma, Y AU - Ma Y AD - Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, 74628Guizhou Medical University, Guiyang, China. FAU - Cen, Y AU - Cen Y AD - Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, 74628Guizhou Medical University, Guiyang, China. FAU - Chen, W AU - Chen W AD - Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, 74628Guizhou Medical University, Guiyang, China. FAU - Wang, S AU - Wang S AD - Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, 74628Guizhou Medical University, Guiyang, China. FAU - Yang, G AU - Yang G AUID- ORCID: 0000-0002-6430-1852 AD - Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, 74628Guizhou Medical University, Guiyang, China. FAU - Zhang, A AU - Zhang A AD - Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, 74628Guizhou Medical University, Guiyang, China. LA - eng PT - Journal Article DEP - 20200731 PL - England TA - Hum Exp Toxicol JT - Human & experimental toxicology JID - 9004560 RN - 0 (Arsenites) RN - 0 (FOXP3 protein, human) RN - 0 (Forkhead Transcription Factors) RN - 0 (Histone Deacetylase Inhibitors) RN - 0 (Histones) RN - 0 (Hydroxamic Acids) RN - 3X2S926L3Z (trichostatin A) SB - IM MH - Acetylation MH - Arsenites/*toxicity MH - *Forkhead Transcription Factors/metabolism MH - Histone Deacetylase Inhibitors MH - Histones MH - Humans MH - Hydroxamic Acids MH - Promoter Regions, Genetic MH - Protein Processing, Post-Translational MH - T-Lymphocytes, Regulatory/*drug effects OTO - NOTNLM OT - Arsenic OT - Foxp3 OT - H4K16 ac OT - TSA OT - lymphocyte EDAT- 2020/08/01 06:00 MHDA- 2021/09/03 06:00 CRDT- 2020/08/01 06:00 PHST- 2020/08/01 06:00 [pubmed] PHST- 2021/09/03 06:00 [medline] PHST- 2020/08/01 06:00 [entrez] AID - 10.1177/0960327120934533 [doi] PST - ppublish SO - Hum Exp Toxicol. 2021 Jan;40(1):35-46. doi: 10.1177/0960327120934533. Epub 2020 Jul 31.