BPDE induces human trophoblast cell ferroptosis by up-regulating iron metabolism and promoting GPX4 proteasomal degradation
Human trophoblast cells play important role in embryo-fetal development. However, trophoblast cells are sensitive to environmental carcinogens. Recently, we have discovered that BPDE inhibits trophoblast cell migration, invasion and proliferation, and also increases trophoblast cell apoptosis. Ferro...
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2021
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oai:doaj.org-article:c9afc7bb2d094498ba5a551dea1da78e2021-12-04T04:32:00ZBPDE induces human trophoblast cell ferroptosis by up-regulating iron metabolism and promoting GPX4 proteasomal degradation0147-651310.1016/j.ecoenv.2021.113028https://doaj.org/article/c9afc7bb2d094498ba5a551dea1da78e2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0147651321011404https://doaj.org/toc/0147-6513Human trophoblast cells play important role in embryo-fetal development. However, trophoblast cells are sensitive to environmental carcinogens. Recently, we have discovered that BPDE inhibits trophoblast cell migration, invasion and proliferation, and also increases trophoblast cell apoptosis. Ferroptosis is a newly identified iron-dependent non-apoptotic programmed cell death. Whether BPDE might induce trophoblast cell ferroptosis is completely unknown. In this work, we have discovered that ferroptosis does occur in BPDE-treated human trophoblast cells. Iron metabolism up-regulates intracellular free Fe2+ level, produces excessive ROS (reactive oxygen species), and accelerates lipid peroxidation. GPX4 efficiently eliminates ROS and inhibits lipid peroxidation. Thus, ferroptosis is well suppressed due to the balance of these two pathways in healthy trophoblast cells. However, BPDE exposure could promote iron metabolism, increase intracellular free Fe2+ level, produce excessive ROS, and result in lipid peroxidation. Meanwhile, BPDE also down-regulates GPX4 expression level by promoting its proteasomal degradation, which eventually produces excessive ROS and induces lipid peroxidation. Thus, BPDE exposure induces trophoblast cell ferroptosis by unbalancing these two pathways, providing new insight in understanding BPDE-induced dysfunctions of human trophoblast cells.Peng TianZhongyan XuJiarong GuoJingsong ZhaoRong WangWeina ChenYang YangWenxin HuangChenyang MiHuidong ZhangElsevierarticleTrophoblast cellsEnvironmental carcinogens (BPDE)Iron metabolismGPX4FerroptosisEnvironmental pollutionTD172-193.5Environmental sciencesGE1-350ENEcotoxicology and Environmental Safety, Vol 228, Iss , Pp 113028- (2021) |
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Trophoblast cells Environmental carcinogens (BPDE) Iron metabolism GPX4 Ferroptosis Environmental pollution TD172-193.5 Environmental sciences GE1-350 |
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Trophoblast cells Environmental carcinogens (BPDE) Iron metabolism GPX4 Ferroptosis Environmental pollution TD172-193.5 Environmental sciences GE1-350 Peng Tian Zhongyan Xu Jiarong Guo Jingsong Zhao Rong Wang Weina Chen Yang Yang Wenxin Huang Chenyang Mi Huidong Zhang BPDE induces human trophoblast cell ferroptosis by up-regulating iron metabolism and promoting GPX4 proteasomal degradation |
description |
Human trophoblast cells play important role in embryo-fetal development. However, trophoblast cells are sensitive to environmental carcinogens. Recently, we have discovered that BPDE inhibits trophoblast cell migration, invasion and proliferation, and also increases trophoblast cell apoptosis. Ferroptosis is a newly identified iron-dependent non-apoptotic programmed cell death. Whether BPDE might induce trophoblast cell ferroptosis is completely unknown. In this work, we have discovered that ferroptosis does occur in BPDE-treated human trophoblast cells. Iron metabolism up-regulates intracellular free Fe2+ level, produces excessive ROS (reactive oxygen species), and accelerates lipid peroxidation. GPX4 efficiently eliminates ROS and inhibits lipid peroxidation. Thus, ferroptosis is well suppressed due to the balance of these two pathways in healthy trophoblast cells. However, BPDE exposure could promote iron metabolism, increase intracellular free Fe2+ level, produce excessive ROS, and result in lipid peroxidation. Meanwhile, BPDE also down-regulates GPX4 expression level by promoting its proteasomal degradation, which eventually produces excessive ROS and induces lipid peroxidation. Thus, BPDE exposure induces trophoblast cell ferroptosis by unbalancing these two pathways, providing new insight in understanding BPDE-induced dysfunctions of human trophoblast cells. |
format |
article |
author |
Peng Tian Zhongyan Xu Jiarong Guo Jingsong Zhao Rong Wang Weina Chen Yang Yang Wenxin Huang Chenyang Mi Huidong Zhang |
author_facet |
Peng Tian Zhongyan Xu Jiarong Guo Jingsong Zhao Rong Wang Weina Chen Yang Yang Wenxin Huang Chenyang Mi Huidong Zhang |
author_sort |
Peng Tian |
title |
BPDE induces human trophoblast cell ferroptosis by up-regulating iron metabolism and promoting GPX4 proteasomal degradation |
title_short |
BPDE induces human trophoblast cell ferroptosis by up-regulating iron metabolism and promoting GPX4 proteasomal degradation |
title_full |
BPDE induces human trophoblast cell ferroptosis by up-regulating iron metabolism and promoting GPX4 proteasomal degradation |
title_fullStr |
BPDE induces human trophoblast cell ferroptosis by up-regulating iron metabolism and promoting GPX4 proteasomal degradation |
title_full_unstemmed |
BPDE induces human trophoblast cell ferroptosis by up-regulating iron metabolism and promoting GPX4 proteasomal degradation |
title_sort |
bpde induces human trophoblast cell ferroptosis by up-regulating iron metabolism and promoting gpx4 proteasomal degradation |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://doaj.org/article/c9afc7bb2d094498ba5a551dea1da78e |
work_keys_str_mv |
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