Cell flux through S phase in the mouse duodenal epithelium determined by cell sorting and radioautography
Version of Record online: 8 FEB 2005
Copyright © 1982 Wiley-Liss, Inc.
The Anatomical Record
Volume 204, Issue 1, pages 1–8, September 1982
How to Cite
Bjerknes, M. and Cheng, H. (1982), Cell flux through S phase in the mouse duodenal epithelium determined by cell sorting and radioautography. Anat. Rec., 204: 1–8. doi: 10.1002/ar.1092040102
- Issue online: 8 FEB 2005
- Version of Record online: 8 FEB 2005
- Manuscript Accepted: 12 MAY 1982
- Manuscript Received: 21 JAN 1982
An accumulation of cells in early S phase was observed in normal mouse duodenal epithelium studied with flow cytometry (Cheng and Bjerknes, 1982). To determine if this accumulation of cells was the result of a lower rate of DNA synthesis, animals were given a single injection of 3H-thymidine and the epithelium collected one hour later. The epithelium was processed for flow cytometry. Seven sort windows were established in different portions of the DNA histogram. Cells from each window were sorted onto glass slides that were then processed for radioautography. The number of silver grains over the nuclei of each sorted population was counted. It was found that cells in early S phase had significantly fewer grains over their nuclei than did mid- or late-S phase cells. We conclude that the accumulation of cells in early S phase is due, at least in part, to a lower rate of DNA synthesis in early than in mid or late S phase.