Gestational exposure of bisphenol-A limits decidual ECM organization via S100a10-Annexin A2 axis in murine placenta
Biswas, A.; Mondal, S.; Mathew, S. J.; Maiti, T. K.
Show abstract
Environmental exposure to endocrine disrupting chemicals, like bisphenol-A (BPA), can impart detrimental effects on developing feto-placental unit, during pregnancy. Placenta remains a central player maintaining this feto-placental homeostasis for sustenance of a healthy pregnancy. Thus, the bisphenol-A mediated endocrine disruption affects the healthy functioning of placenta by altering key processes, such as tissue remodelling, angiogenesis, and metabolism. However, the underlying mechanism of BPA-altered ECM remodelling remains elusive. Therefore, in this study we investigated the BPA mediated changes in placental tissue remodelling using a bisphenol-A exposed murine model during pregnancy. The results reveal that, the phenotypic changes in feto-placental interface correlates with perturbed placental proteome in response to BPA. Further investigation highlights a S100a10-Annexin A2 axis mediated upregulation of tissue plasminogen activator (tPA), which drives altered extracellular matrix (ECM) degradation in placental decidua. This culminates into functional dysregulation in feto-placental axis, leading to reduced size of fetus and placenta. Therefore, this study provides novel insights of a S100a10-Annexin A2 axis associated mechanism for alteration of ECM remodelling in placental decidua due to BPA exposure, which may lead to toxicity related adverse pregnancy outcome.
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