Diaz-Bardales BM, Novaski SM, Goes AE, Castro GM, Mengel J, Santos LM. Modulation of the severity of experimental autoimmune encephalomyelitis by gammadelta T lymphocytes activated by mycobacterial antigens.
Immunol Invest 2001;
30:245-58. [PMID:
11570644 DOI:
10.1081/imm-100105068]
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Abstract
Immunity to mycobacterial antigens may contribute to the maintenance of self-tolerance. Exposure of the immune system to mycobacterial antigen might well stimulate the immune system to exert control over unwanted self-reactive clones. We demonstrated that in vivo administration of Mycobacterium tuberculosis, PPD, and PPD peptide (180-196) prior to immunization with Myelin Basic Protein (MBP) led to a moderate increase of gammadelta T cells, suppression of the immune response, and reduction in the severity of Experimental Autoimmune Encephalomyelitis. The immunosuppression observed is due, at least in part, to the production of Transforming growth factor-beta (TGFbeta) by the gammadelta T lymphocytes.
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