US EPA

6315705 

Journal Article 

The short-chain perfluorinated compounds PFBS, PFHxS, PFBA and PFHxA, disrupt human mesenchymal stem cell self-renewal and adipogenic differentiation 

Liu, S; Yang, R; Yin, N; Faiola, F 

2020 

Yes 

Journal of Environmental Sciences
ISSN: 1001-0742
EISSN: 1878-7320 

88 

187-199 

English 

31862060 

10.1016/j.jes.2019.08.016 

WOS:000503386400018 

Per- and polyfluorinated alkyl substances (PFASs) are commonly used in industrial processes and daily life products. Because they are persistent, they accumulate in the environment, wildlife and humans. Although many studies have focused on two of the most representative PFASs, PFOS and PFOA, the potential toxicity of short-chain PFASs has not yet been given sufficient attention. We used a battery of assays to evaluate the toxicity of several four-carbon and six-carbon perfluorinated sulfonates and carboxyl acids (PFBS, PFHxS, PFBA and PFHxA), with a human mesenchymal stem cell (hMSC) system. Our results demonstrate significant cyto- and potential developmental toxicity for all the compounds analyzed, with shared but also distinct mechanisms of toxicity. Moreover, the effects of PFBS and PFHxS were stronger than those of PFBA and PFHxA, but occurred at higher doses compared to PFOS or PFOA. 

Short-chain perfluorinated compounds; Human mesenchymal stem cells (hMSCs); Adipogenesis/osteogenesis; Developmental toxicity; PFBS/PFBA/PFHxS/PFHxA