Oct 1, 1992

Production and specificity of antisera raised against 25-hydroxyvitamin D3-[C-3]-bovine serum albumin conjugates

N KobayashiK Shimada


In order to obtain specific antisera for use in the enzyme immunoassay of 25-hydroxyvitamin D3, three hapten-carrier conjugates having different lengths of bridges at the C-3 position were prepared from 25-hydroxyvitamin D3 by coupling with bovine serum albumin using the active ester method. The specificity of anti-25-hydroxyvitamin D3 antisera elicited in rabbits was tested by a cross-reaction study with closely related secosterols and by measuring the plasma levels of 25-hydroxyvitamin D3 by means of radioimmunoassay using tritium-labeled antigen. The results indicated that the specificity of the antisera obtained is higher than that of vitamin D-binding protein, and that some of these antisera are suitable for enzyme immunoassay.

Mentioned in this Paper

Calcifediol, (3 beta,5E,7E)-Isomer
Immune Sera
Cross Reactions
Dose-Response Relationship, Immunologic
Chinchilla Rabbits
Spectrophotometry, Ultraviolet
Antibody Specificity
Serum Albumin, Bovine

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