ICRC Bacillus a Vaccine Candidate Strain (C-44) Is Coated with Human IgG

Authors: A. R. Yadav, K. K. Mohanty, U. Sengupta

ABSTRACT
Indian Cancer Research Centre (ICRC) bacillus strain (C-44), a candidate vaccine against leprosy is cultured in vitro in Dubos medium enriched with amino acids and human serum. The study was conducted to find out whether ICRC bacilli obtained from these cultures are coated with anti mycobacterial antibody. Anti-ICRC antibody raised by intradermal inoculation of sonicated ICRC bacilli in rabbits reacted with both human immunoglobulin G (IgG) and antigens of ICRC. Further, ICRC bacilli could also be fluoresced directly with FITC labelled anti human IgG. Positive fluorescence of ICRC could be abolished by digestion of human IgG with trypsin and carbon tetrachloride (CCL4). It is concluded that ICRC bacilli present in the vaccine are coated with human IgG.

Source:

Journal: Open Journal of Immunology
DOI: 10.4236/oji.2017.73004 (PDF)
Paper Id: 78954 (metadata)

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