期刊
JOURNAL OF IMMUNOASSAY & IMMUNOCHEMISTRY
卷 33, 期 3, 页码 252-268出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/15321819.2011.638525
关键词
antigen heterologous; heterologous; homologous; immunoassay; site heterologous; testosterone
资金
- National Institute of Health and Family Welfare, New Delhi, India
In steroid enzyme immunoassay (EIA), homologous and heterologous combinations of enzyme conjugate with immunogen influences labeled steroid recognition by antibodies that affect sensitivity of the assay. To develop testosterone enzyme linked immunosorbent assay (ELISA), antibodies were generated against testosterone-3-carboxymethyloxime-bovine serum albumin (T-3-CMO-BSA), testosterone-11-hemisuccinate-bovine serum albumin (T-11-HS-BSA), testosterone-17-hemisuccinate-bovine serum albumin (T-17- HS-BSA), testosterone-17-glucuronide-bovine serum albumin (T-17-G-BSA), and testosterone-19-carboxymethylether-bovine serum albumin (T-19-CME-BSA). Testosterone horseradish peroxidase (HRP) enzyme conjugate were prepared using carboxyl derivatives of 11-keto-testosterone (11-keto-T) and 1-dehydrotestosterone (1-Dehydro-T). Ten combinations of heterologous assays were evaluated. The data of the present study revealed that the use of the T-11-HS-BSA antibody in antigen plus site heterologous assay that employed 11-keto-testosterone-3-CMO-HRP as the label showed binding and displacement, and led to the development of sensitive and specific assay.
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