TY - JOUR T1 - INcreased serum interleukin 2 receptor concentration in schizophrenic and brain-damaged subjects AU - Ganguli R, Rabin BS Y1 - 1989/03/01 N1 - 10.1001/archpsyc.1989.01810030098018 JO - Archives of General Psychiatry SP - 292 EP - 292 VL - 46 IS - 3 N2 - To the Editor.—  It has been suggested that autoimmunity may play a role in the pathogenesis of symptoms in some schizophrenics.1,2 Activation of the immune system by an ongoing autoimmune disease is associated with measurable alterations in T-lymphocyte function. In patients with an autoimmune disease, T lymphocytes have a decreased response to nonspecific mitogenic stimulation and produce reduced amounts of interleukin 2 (IL-2).3-5 As IL-2 is necessary for T lymphocytes to respond in a normal manner to nonspecific mitogens, the reduced mitogenic activity may reflect low IL-2 production by the T cells.Recently it has been suggested that the low lymphocyte production of IL-2 in patients with an autoimmune disease occurs because the T cells are activated and the lymphocyte-derived IL-2 has been released into the serum.6 Alternatively, the IL-2 released from lymphocytes may be bound by soluble IL-2 receptor (IL-2R) released from the cell surface. If SN - 0003-990X M3 - doi: 10.1001/archpsyc.1989.01810030098018 UR - http://dx.doi.org/10.1001/archpsyc.1989.01810030098018 ER -