“A role for microfilaments and microtubules in the secretion … α-amylase is indicated since cytochalasin B and colchicine inhibited the stimulation of α-amylase release by epinephrine (30 or 15 μM) but only cytochalasin B inhibited the stimulation by N6, O2′ dibutyryl adenosine 3′,5′monophosphate (1.0 mM).”