FURTHER EVIDENCE FOR THE PRESENCE OF A PANETH CELL PROGENITOR IN MOUSE INTESTINE

Abstract

ABSTRACT Photomicrographic evidence, mitotic figures and 3 H‐thymidine labeling among Paneth cells, is presented in support of the hypothesis that Paneth cells are replaced by cells proliferating in the bottom of the intestinal crypt rather than by migration of cells from the mid‐crypt region.