research Genetic alteration of cyclic adenosine 3',5'-monophosphate-dependent protein kinase subunit expression affects calcium currents and beta-endorphin release in AtT-20 clonal pituitary cells.
This study found that AtT-20 pituitary cells with higher cAMP-dependent kinase activity had larger calcium currents and significantly increased beta-endorphin release compared to cells with lower kinase activity.