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. 1983 Oct;8(2):141-51.
doi: 10.1016/0198-8859(83)90009-5.

Isolation of heavy chain class switch variants of a monoclonal anti-DC1 hybridoma cell line: effective conversion of noncytotoxic IgG1 antibodies to cytotoxic IgG2 antibodies

P Parham, T J Kipps, F E Ward, L A Herzenberg

Isolation of heavy chain class switch variants of a monoclonal anti-DC1 hybridoma cell line: effective conversion of noncytotoxic IgG1 antibodies to cytotoxic IgG2 antibodies

P Parham et al. Hum Immunol. 1983 Oct.

Abstract

Spontaneously arising class switch variants of the Genox 3.53 hybridoma cell line were isolated. They secrete IgG2a or IgG2b monoclonal antibodies of anti-DC1 specificity identical to that of the IgG1 secreting parental cell. In contrast to the parental monoclonal antibody, those secreted by the variants are cytotoxic to peripheral blood B lymphocytes of DC1 positive individuals and are thus compatible with existing HLA typing techniques. This provides a general method for converting noncytotoxic anti-HLA antibodies into cytotoxic typing reagents.

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