Regulation of glycogen phosphorylase activity in isolated human hepatocytes
Stefaan Keppens, Ann Vandekerckhove, Han Moshage, Sing Hiem Yap, Raymond Aerts, Henri de Wulf – 1 April 1993 – Hepatocytes were isolated from human liver tissue by a two‐step perfusion technique. They were treated with vasopressin, angiotensin, ATP and phenylephrine, which are known to be Ca2+‐mediated glycogenolytic agents in rat liver tissue, and as a control, they were treated with the cyclic AMP–mediated hormones glucagon and isoproterenol. All agonists induce a timedependent activation of glycogen phosphorytase.