An Enzyme-linked Immunosorbent Assay for Bromodeoxyuridine Incorporation Using Fixed Microcultures

Overview

Journal Anal Biochem

Publisher Elsevier

Specialty Biochemistry

Date 1990 Mar 1

PMID 2339793

Citations 21

Authors

D Muir

S Varon

M Manthorpe

Affiliations

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Abstract

We report a quantitative method by which a single microculture can be examined for (i) cell morphology; (ii) cell number; (iii) DNA synthesis; and (iv) expression of cell antigens. This method first involves measuring by enzyme-linked immunosorbent assay (ELISA) the total bromodeoxyuridine (BrdU) incorporation into DNA by monolayer microcultures. The BrdU-ELISA measurement was followed by simultaneous immunostaining for BrdU-positive nuclei and for a cytoplasmic antigen. The method was applied to the measurement of mitogen-induced proliferation of rat sciatic nerve Schwann cell and cerebral astroglia microcultures. The ELISA measurement of BrdU incorporation compares favorably with measurements of tritiated thymidine incorporation and offers the additional advantages that the same microculture can subsequently be examined for cell number, for cell morphology, and for the percentage of cells having BrdU-labeled nuclei and other antigens.

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