The inhibitory effect of Diphenyltin (cas 1011-95-6) on gap junctional intercellular communication in HEK-293 cells is reduced by thioredoxin reductase 1
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Add time:07/23/2019 Source:sciencedirect.com
Organotins display high biological activity and are toxic to animals and humans. Besides carcinogenic effects, they have been shown to have highly immunotoxic and/or neurotoxic activity; however, the molecular mechanism of their toxicity is not fully understood. The ability of chemicals to inhibit communication via gap junctions has been associated with their toxicological properties. The aim of this study was to determine whether Diphenyltin (cas 1011-95-6) (DPhT) affects the gap junctional intercellular communication (GJIC) and whether thioredoxin reductase (TrxR1) is involved in the regulation of this process.We found that DPhT inhibits GJIC in HEK-293 cells. The inhibition of GJIC depends on the activation of PKC δ and is associated with the induction of Cx43 phosphorylation at Ser262. Moreover, we found that GJIC inhibited by DPhT in HEK-293 cells is fully re-established as a result of TrxR1 overexpression.
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