Lectins used to prepare serum free of glycoprotein hormones for use as a matrix in radioimmunoassay

M. C. Stuart, S. Ellis, L. Gowlland, S. Tuff

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Hormone-free serum is required for use as a matrix for standards in the radioimmunoassay of hormones. The glycoprotein hormones are difficult to remove from serum by conventional techniques. We exploited the specific binding of carbohydrates by lectins to extract glycoprotein hormones from human serum. Passing serum over Concanavalin A Sepharose efficiently removed lutropin and the β subunit of choriogonadotropin. Wheat-Germ Lectin Sepharose completely removed these, and also follitropin and thyrotropin. The latter treatment is shown to provide a suitable matrix for standards in radioimmunoassays of the four hormones.

Original languageEnglish
Pages (from-to)52-56
Number of pages5
JournalClinical Chemistry
Volume27
Issue number1
Publication statusPublished - 1981

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