Flow cytometric measurement of total DNA content and incorporated bromodeoxyuridine.
- 1 September 1983
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences of the United States of America
- Vol. 80 (18), 5573-5577
- https://doi.org/10.1073/pnas.80.18.5573
Abstract
A procedure was developed for simultaneous flow cytometric measurement of cellular DNA content and amount of BrdUrd [bromodeoxyuridine] incorporated into cellular DNA. Propidium iodide was used as a fluorescent probe for total cellular DNA and a monoclonal antibody against BrdUrd was used as a probe for BrdUrd incorporated into DNA. Fluorescein-labeled goat anti-mouse antibody was used to fluorescently label the bound anti-BrdUrd probe. Bivariate DNA/BrdUrd distributions measured for Chinese hamster ovary cells labeled for 30 min with BrdUrd clearly show the G1- and G2M-phase cells to have low BrdUrd-linked fluorescence and the S-phase cells to have high BrdUrd-linked fluorescence. Cell cycle traverse rates were estimated for Chinese hamster ovary cells from bivariate distributions measured for samples taken periodically after pulse labeling with BrdUrd. Bivariate DNA/BrdUrd distributions were also applied in the analysis of the response of C3H murine bone marrow cells to treatment in vivo with 1-.beta.-D-arabinofuranosylcytosine (araC). Bivariate distributions were measured for bone marrow cells taken from mice that were pulse labeled with BrdUrd at various times after treatment with araC. The resulting DNA/BrdUrd sequences show the kinetics of recovery from araC and allow discrimination of the araC sterilized cells.This publication has 14 references indexed in Scilit:
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