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Clin Immunol Immunopathol. 1991 Jan;58(1):115-25.

Interleukin-1 corrects the defective autologous mixed lymphocyte response in multiple sclerosis.

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Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts.


Patients with chronic progressive multiple sclerosis (MS) have alterations of T cell regulation that can be measured by in vitro assays and include decreases of the autologous mixed lymphocyte reaction (AMLR). Whether a defect in cytokine secretion was involved in the altered AMLR was investigated in 29 MS patients and 13 age- and sex-matched controls. The response of CD4+ T cell populations to irradiated non-T cells was decreased in MS as compared to control subjects. As previously reported, decreases in the AMLR were similarly observed with whole T cells of MS subjects as compared to controls. The addition of recombinant interleukin (IL)-1 to cultures of either whole T cells or CD4+ T cells with irradiated non-T cells in the AMLR corrected the immune defect in subjects with MS but had no effect on the AMLR in control subjects. In contrast, addition of rIL-2 or rIL-4 to the AMLR did not correct the decreased AMLR in MS patients as compared to controls. The lymphokines IFN-gamma and TGF-beta 2 both decreased the AMLR in MS patients and controls while TNF had no effect. Further, the magnitude of the AMLR response corresponded to IL-1 secretion induced by LPS in the non-T cell population. These studies indicate that defects in IL-1 may be related to immune defects of suppression in MS patients. Selective correction of immunoregulatory defects using lymphokines or their inducers in subjects with autoimmune diseases such as MS may be possible.

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