Anti-proliferative effects of 8-chloro-cAMP and other cAMP analogs are unrelated to their effects on protein kinase A regulatory subunit expression.

Abstract excerpt

Conflicting reports have attributed 8-chloro-cAMP (Cl-cAMP)-mediated inhibition of tumor cell growth to either a toxic 8-chloro-adenosine (Cl-AdR) breakdown product or a Cl-cAMP-mediated decrease in ratio of Type I to Type II regulatory (R) subunits of protein kinase A (PKA). Using the MCF-7 human breast cancer and S49 mouse lymphoma cell lines as models, we show that the effects of Cl-cAMP and other cAMP analogs...

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