| Literature DB >> 8228282 |
V Ghetie1, E Swindell, J W Uhr, E S Vitetta.
Abstract
A method for the preparation of immunotoxins (ITs) containing one and two molecules of deglycosylated ricin A chain (dgA) bound to each molecule of anti-human CD22 mouse IgG1 monoclonal antibody is described. The cross-linking of antibody and dgA molecules was accomplished with N-succinimidyl-oxycarbonyl-alpha-methyl-(2-pyridyldithio) toluene. The two ITs were purified by successive chromatographies on Blue-Sepharose, Sephacryl S-200, Blue-Sepharose with NaCl gradient and Sephacryl S-300. The IT with two dgAs was seven-fold more cytotoxic to CD22+ Daudi cells than that containing one molecule of dgA.Entities:
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Year: 1993 PMID: 8228282 DOI: 10.1016/0022-1759(93)90335-5
Source DB: PubMed Journal: J Immunol Methods ISSN: 0022-1759 Impact factor: 2.303