Column ion exchange chromatographic processes were developed for the productionof immune serum globulin (ISG) for intravenous use. Sequential chromatographyon two cross-linked agarose gel anion exchangers yielded the same immunoelectrophoreticpure ISG as a single column DEAE-Sephadex procedure with the advantage of repeated ‘incolumn’ cycling. ISG with a low content of aggregated IgG and low anticomplementaryactivity was prepared from plasma with 53-69% efficiency. The ISG prepared by theseprocesses was characterized with respect to the content of IgA, prekallikrein activator(PKA), plasminogen, fragmentation, and heavy chain subclass distribution.
đang được dịch, vui lòng đợi..
