Effect of X-rays on the Migration of Cells from Adult Tissue Explants. *

Abstract

Summary

Evidence is presented that irradiation with small doses of X-rays decreases the time—latent period—required for a migrating cell to appear at the margin of a fresh explant of normal adult chicken heart. The maximum shortening of the latent period occurs with a dose of about 30 r. With larger doses of X-rays the latent period increases again, although a dose of the order of 1,000 r is necessary before the latent period is as long as that of the controls.