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. 1987 May;84(10):3439–3443. doi: 10.1073/pnas.84.10.3439

Chimeric mouse-human IgG1 antibody that can mediate lysis of cancer cells.

A Y Liu, R R Robinson, K E Hellström, E D Murray Jr, C P Chang, I Hellström
PMCID: PMC304886  PMID: 3106970

Abstract

A chimeric mouse-human antibody has been created that recognizes an antigen found on the surface of cells from many carcinomas. Immunoglobulin constant (C) domains of the mouse monoclonal antibody L6, C gamma 2a and C kappa, were substituted by the human C gamma 1 and C kappa by recombining cDNA modules encoding variable or C domains. The cDNA constructs were transfected into lymphoid cells for antibody production. The chimeric antibody and mouse L6 antibody bound to carcinoma cells with equal affinity and mediated complement-dependent cytolysis. In the presence of human effector cells, the chimeric antibody gave antibody-dependent cellular cytotoxicity at 100 times lower concentration than that needed for the mouse L6 antibody. The chimeric antibody, but not the mouse L6 antibody, is effective against a melanoma line expressing small amounts of the L6 antigen. The findings point to the usefulness of the chimeric antibody approach for obtaining agents with strong antitumor activity for possible therapeutic use in man.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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