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© Research
Publication : International immunology

Proliferative T cell anergy to MIs-1a does not correlate with in vivo tolerance

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in International immunology - 01 Sep 1991

Bandeira A, Mengel J, Burlen-Defranoux O, Coutinho A

Link to Pubmed [PMID] – 1834165

Int. Immunol. 1991 Sep;3(9):923-31

Intravenous or intraperitoneal priming of MIs-1b mice with cells from MIs-1a donors drastically reduces secondary in vitro proliferative responses to specific stimulation. We show here that: (i) priming leads to blast transformation of essentially all CD4+ T cells bearing V beta 6 receptors in spleen and lymph nodes, and to their marked clonal expansion; (ii) secondary in vivo (or in vitro) challenges have no effect on the state of activation and numbers of V beta 6 CD4 T cells, which, however, migrate to the site of antigenic exposure; (iii) priming results in the differentiation of specific V beta 6 CD4 T cells to effector helper activities, manifested in vivo by marked increases in the numbers of splenic plasma cells, which include terminally differentiated donor MIs-1a B cells; (iv) primed mice show accelerated ‘second set’ rejection of antigenic cells; and (v) MIs-1b mice, thymectomized as adults before exposure to MIs-1a cells, show immune responses that are equivalent to those of control animals. We conclude that, in this experimental system, proliferative ‘anergy’ does not correlate with tolerance but with memory, and relates to the determination of class in immune responses.

http://www.ncbi.nlm.nih.gov/pubmed/1834165