Heterohybridomas producing human monoclonal antibodies to HIV-1

Drug – bio-affecting and body treating compositions – Immunoglobulin – antiserum – antibody – or antibody fragment,... – Structurally-modified antibody – immunoglobulin – or fragment...

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4241421, 4241481, 4241601, 435 696, 435 7021, 4351722, 435328, 4353391, 5303873, 53038815, 53038835, A61K 39395, C07K 1610

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059141093

ABSTRACT:
Heterohybridomas producing human monoclonal antibodies against a neutralizing epitope of HIV-1 are prepared by transforming peripheral blood lymphocytes by Epstein-Barr virus, selecting cells producing an antibody to a synthetic peptide representing part of the neutralizing epitope, and fusing them with a heteromyeloma cell. A method for producing a human monoclonal antibody specific for a neutralizing HIV-1 epitope from the heterohybridoma is disclosed. Also provided are human neutralizing monoclonal antibodies specific for particular peptide epitopes of the V3 loop of the gp120 glycoprotein of HIV, in particular a broadly reactive antibody specific for diverse HIV-1 strains, preferably recognizing an epitope comprising an amino acid sequence GPXR or GRAF.

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