AI Article Synopsis
- PFDA is a synthetic compound shown to harm somatic cells, but its effects on germ cells, specifically porcine oocytes, were previously unstudied.
- The study found that PFDA significantly reduces oocyte viability and maturation, with a lethal concentration of 7.8 μM and an inhibition of maturation at 3.8 μM.
- PFDA also increases intracellular calcium levels and disrupts communication between cumulus cells and oocytes, suggesting that these changes contribute to the negative effects on oocyte health and development, raising concerns about its use in consumer products.
Article Abstract
Perfluorodecanoic acid (PFDA) is a synthetic perfluorinated compound, which has been reported to exert adverse effects on somatic cells. However, its effects on germ cells have not been studied to date. The aim of the present study was to analyze the effects of PFDA on the viability, intracellular calcium levels and gap junction intercellular communication (GJIC) during porcine oocyte maturation in vitro. PFDA negatively impacted oocyte viability (medium lethal concentration, LC = 7.8 μM) and maturation (medium inhibition of maturation, IM = 3.8 μM). Oocytes exposed to 3.8 μM PFDA showed higher levels of intracellular calcium relative to control oocytes. In addition, GJIC among the cumulus cells and the oocyte was disrupted. The effects of PFDA on oocyte calcium homeostasis and intercellular communication seem to be responsible for the inhibition of oocyte maturation and oocyte death. In addition, since the deleterious effects of PFDA on oocyte viability, maturation and GJIC are significantly stronger than the previously reported effects of another widely used perfluorinated compound (Perfluorooctane sulfonate) in the same model, the use of PFDA in consumer products is questioned.
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| http://dx.doi.org/10.1016/j.tiv.2019.03.041 | DOI Listing |
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