Impaired lymphocyte proliferation in human acute pancreatitis

Raffaele PezzilliR Mancini


We evaluated the proliferative response of lymphocytes to phytohemagglutinin P (PHA P), concanavalin A (Con A), and pokeweed mitogen (PWM) during the course of acute pancreatitis. Sixty consecutive patients with acute pancreatitis were studied within 48 h of the onset of pain, and 16 of them were also studied 1 month after complete recovery. According to the Atlanta criteria, 21 patients had severe disease and 39 had mild disease. Fifteen healthy subjects and 11 patients with nonpancreatic acute abdomen were studied as controls. In 12 patients with acute pancreatitis the lymphocyte proliferation after stimulation with the three mitogens was also assessed in autologous and heterologous plasma. The lymphocyte proliferative response to optimal doses of PHA P, Con A, and PWM was significantly lower (p < 0.001) in acute pancreatitis patients (mean +/- SD; PHA P 74,310 +/- 22,960 cpm; Con A 64,669 +/- 20,188 cpm; PWM 26,714 +/- 6,436 cpm) than in healthy subjects (PHA P 111,316 +/- 12,044 cpm; Con A 96,276 +/- 12,327 cpm; PWM 33,957 +/- 3,601 cpm). Patients with nonpancreatic acute abdomen had a significantly higher lymphocyte proliferative response to PHA P and Con A than acute pancreatitis patients (PHA P p < 0.002; Con A p < 0.01;...Continue Reading


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