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Use of chromatography for the preparation of homologous tetanus antitoxin
V A Alyoshkin1, V N Borisova, A M Ponomaryova
1G.N. Gabrichevsky Research Institute of Epidemiology and Microbiology, Moscow, U.S.S.R.
To obtain immunoglobulin of selected action with a higher titre, techniques for isolating antibodies from a donor's normal immunoglobulin by means of affinity chromatography were used. To obtain an affinity sorbent, tetanus toxoid was used as a ligand. Using an immunosorbent based on the purified ligand, tetanus antibodies were prepared with a specific activity of 65 IU/mg. According to gel-permeation chromatography, the tetanus antibodies obtained were represented mainly by IgG monomer (greater than 90%). The anticomplementary activity of the preparations obtained, being at least 11 mg of protein per 2CH50, does not rule out the possibility of intravenous administration of tetanus antibodies.
To obtain immunoglobulin of selected action with a higher titre, techniques for isolating antibodies from a donor's normal immunoglobulin by means of affinity chromatography were used. To obtain an affinity sorbent, tetanus toxoid was used as a ligand. Using an immunosorbent based on the purified ligand, tetanus antibodies were prepared with a specific activity of 65 IU/mg. According to gel-permeation chromatography, the tetanus antibodies obtained were represented mainly by IgG monomer (greater than 90%). The anticomplementary activity of the preparations obtained, being at least 11 mg of protein per 2CH50, does not rule out the possibility of intravenous administration of tetanus antibodies.