Perfluorooctane sulfonate (PFOS) induced bone loss by inhibiting FoxO1-mediated defense against oxidative stress in osteoblast

Exposure to perfluorooctane sulfonate (PFOS) has been associated with lower bone density and the occurrence of osteoporosis in human studies, but the effects and mechanisms of PFOS induces bone loss is not well understood. Our research is aimed at examining the effects of PFOS on osteoblastic activi...

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Main Authors: Liming Xue, Jiale Xu, Ping Xiao, Yiping Jiang, Yuanjie Lin, Chao Feng, Yu’e Jin, Zhijun Zhou, Guoquan Wang, Dasheng Lu
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Ecotoxicology and Environmental Safety
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Online Access:http://www.sciencedirect.com/science/article/pii/S0147651324016002
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author Liming Xue
Jiale Xu
Ping Xiao
Yiping Jiang
Yuanjie Lin
Chao Feng
Yu’e Jin
Zhijun Zhou
Guoquan Wang
Dasheng Lu
author_facet Liming Xue
Jiale Xu
Ping Xiao
Yiping Jiang
Yuanjie Lin
Chao Feng
Yu’e Jin
Zhijun Zhou
Guoquan Wang
Dasheng Lu
author_sort Liming Xue
collection DOAJ
description Exposure to perfluorooctane sulfonate (PFOS) has been associated with lower bone density and the occurrence of osteoporosis in human studies, but the effects and mechanisms of PFOS induces bone loss is not well understood. Our research is aimed at examining the effects of PFOS on osteoblastic activity and investigating the toxicological mechanisms of PFOS-induced bone loss. Cell proliferation, ALP activity, bone nodule formation, ROS levels, and cell apoptosis were assessed after treating osteoblasts with different concentrations of PFOS. Through transcriptome analysis, the differentially expressed genes (DEGs) were screened and the biofunctions were elucidated by Kyoto Encyclopedia of Genes and Genomes (KEGG) and The Gene Set Enrichment Analysis (GSEA). Vation of important genes and protein expression was accomplished using RT-PCR and Western blot methods, respectively. The results show that PFOS can reduce bone formation markers and improve oxidative stress and cell apoptosis. The DEGs in PFOS-treated groups were involved in multiple pathways, including FoxO, HIF-1, Rap1, Hippo, and sphingolipid signaling. FoxO1 was validated as the key gene which regulates osteogenic differentiation and redox status. Our findings suggest that PFOS reduces bone formation through FoxO1-mediated oxidative stress and apoptosis, as well as inhibition of the OPG/RANKL and FoxO1/β-catenin pathways. It will be beneficial for early intervention or treatment of PFOS-induced bone loss, highlighting the importance of regulatory measures to limit human exposure to PFOS.
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spelling doaj-art-fd52265edcbc4e6684c25e0d3c31e6ff2025-02-12T05:29:28ZengElsevierEcotoxicology and Environmental Safety0147-65132025-01-01290117524Perfluorooctane sulfonate (PFOS) induced bone loss by inhibiting FoxO1-mediated defense against oxidative stress in osteoblastLiming Xue0Jiale Xu1Ping Xiao2Yiping Jiang3Yuanjie Lin4Chao Feng5Yu’e Jin6Zhijun Zhou7Guoquan Wang8Dasheng Lu9Division of Chemical Toxicity and Safety Assessment, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China; State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, ChinaDivision of Chemical Toxicity and Safety Assessment, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China; State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, ChinaDivision of Chemical Toxicity and Safety Assessment, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China; State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, ChinaSchool of Pharmacy, Naval Medical University, Shanghai 200433, ChinaDivision of Chemical Toxicity and Safety Assessment, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China; State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, ChinaDivision of Chemical Toxicity and Safety Assessment, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China; State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, ChinaDivision of Chemical Toxicity and Safety Assessment, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China; State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, ChinaSchool of Public Health, Fudan University, Shanghai 200032, ChinaDivision of Chemical Toxicity and Safety Assessment, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China; State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China; Correspondence to: Institution of Chemical and Toxicity Assessment, Shanghai Municipal Center for Disease Control and Prevention, 1380 Zhongshan Road, Shanghai 200336, China.Division of Chemical Toxicity and Safety Assessment, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China; State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China; Correspondence to: Institution of Chemical and Toxicity Assessment, Shanghai Municipal Center for Disease Control and Prevention, 1380 Zhongshan Road, Shanghai 200336, China.Exposure to perfluorooctane sulfonate (PFOS) has been associated with lower bone density and the occurrence of osteoporosis in human studies, but the effects and mechanisms of PFOS induces bone loss is not well understood. Our research is aimed at examining the effects of PFOS on osteoblastic activity and investigating the toxicological mechanisms of PFOS-induced bone loss. Cell proliferation, ALP activity, bone nodule formation, ROS levels, and cell apoptosis were assessed after treating osteoblasts with different concentrations of PFOS. Through transcriptome analysis, the differentially expressed genes (DEGs) were screened and the biofunctions were elucidated by Kyoto Encyclopedia of Genes and Genomes (KEGG) and The Gene Set Enrichment Analysis (GSEA). Vation of important genes and protein expression was accomplished using RT-PCR and Western blot methods, respectively. The results show that PFOS can reduce bone formation markers and improve oxidative stress and cell apoptosis. The DEGs in PFOS-treated groups were involved in multiple pathways, including FoxO, HIF-1, Rap1, Hippo, and sphingolipid signaling. FoxO1 was validated as the key gene which regulates osteogenic differentiation and redox status. Our findings suggest that PFOS reduces bone formation through FoxO1-mediated oxidative stress and apoptosis, as well as inhibition of the OPG/RANKL and FoxO1/β-catenin pathways. It will be beneficial for early intervention or treatment of PFOS-induced bone loss, highlighting the importance of regulatory measures to limit human exposure to PFOS.http://www.sciencedirect.com/science/article/pii/S0147651324016002Perfluorooctane sulfonate (PFOS)TranscriptomicsFoxO1Osteoblastic bone formationOxidative Stress
spellingShingle Liming Xue
Jiale Xu
Ping Xiao
Yiping Jiang
Yuanjie Lin
Chao Feng
Yu’e Jin
Zhijun Zhou
Guoquan Wang
Dasheng Lu
Perfluorooctane sulfonate (PFOS) induced bone loss by inhibiting FoxO1-mediated defense against oxidative stress in osteoblast
Ecotoxicology and Environmental Safety
Perfluorooctane sulfonate (PFOS)
Transcriptomics
FoxO1
Osteoblastic bone formation
Oxidative Stress
title Perfluorooctane sulfonate (PFOS) induced bone loss by inhibiting FoxO1-mediated defense against oxidative stress in osteoblast
title_full Perfluorooctane sulfonate (PFOS) induced bone loss by inhibiting FoxO1-mediated defense against oxidative stress in osteoblast
title_fullStr Perfluorooctane sulfonate (PFOS) induced bone loss by inhibiting FoxO1-mediated defense against oxidative stress in osteoblast
title_full_unstemmed Perfluorooctane sulfonate (PFOS) induced bone loss by inhibiting FoxO1-mediated defense against oxidative stress in osteoblast
title_short Perfluorooctane sulfonate (PFOS) induced bone loss by inhibiting FoxO1-mediated defense against oxidative stress in osteoblast
title_sort perfluorooctane sulfonate pfos induced bone loss by inhibiting foxo1 mediated defense against oxidative stress in osteoblast
topic Perfluorooctane sulfonate (PFOS)
Transcriptomics
FoxO1
Osteoblastic bone formation
Oxidative Stress
url http://www.sciencedirect.com/science/article/pii/S0147651324016002
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