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. 1985 Jun 1;161(6):1432-49.
doi: 10.1084/jem.161.6.1432.

Suppression of in vivo tumor formation induced by simian virus 40-transformed cells in mice receiving antiidiotypic antibodies

R C Kennedy, G R Dreesman, J S Butel, R E Lanford

Suppression of in vivo tumor formation induced by simian virus 40-transformed cells in mice receiving antiidiotypic antibodies

R C Kennedy et al. J Exp Med. .

Abstract

This study characterizes four private idiotypes (Id) associated with monoclonal antibodies (mAb) to simian virus 40 (SV40) tumor antigen (T-Ag), and to a cellular protein, p53. Anti-Id recognized Id determinants associated with the antibody-combining site. BALB/c mice receiving a pool of anti-Id directed against mAb recognizing distinct amino and carboxyl terminal epitopes of T-Ag before receiving a tumorigenic dose of SV40-transformed cells showed suppression of tumor formation. Serum obtained from these mice before tumor challenge contained anti-anti-Id that failed to bind T-Ag. These data support the potential role of regulatory idiotopes in tumor immunity.

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