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© Research
Publication : International immunology

Selective expansion of idiotype sharing T and B cells in cyclosporin A-mediated autoimmunity

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in International immunology - 01 Aug 1991

Gaspar ML, Marcos MA, Pereira P, Toribio ML, Coutinho A, Martinez C

Link to Pubmed [PMID] – 1716975

Int. Immunol. 1991 Aug;3(8):777-84

CBA/N mice submitted to autologous bone marrow reconstitution after lethal irradiation and simultaneous Cyclosporin A (CsA) treatment develop a chronic graft-versus-host disease with autoimmune characteristics. When compared to normal controls, diseased mice show an overrepresentation of V beta 8-expressing T cells (65-80% of all CD3+ lymphocytes), together with a marked increase in the titres of serum Ig that specifically bind to F(ab’)2 fragments of anti-V beta 8 F23.1 antibodies. Such ‘V beta 8-like’ Ig V regions are abundantly represented among the IgG2b and mAbs of an unselected collection of hybridomas derived from these mice. These mAbs are not multireactive Ig as they fail to bind to a panel of various antigens and antibodies, but often show simultaneous reactivity with anti-idiotypic mAbs to F23.1 and auto-binding. These molecules may provide the structural basis of V-region specific complementarities, driving the expansion of restricted T and B cell repertoires associated with pathological autoimmunity.

http://www.ncbi.nlm.nih.gov/pubmed/1716975