PMID: 2512193Dec 1, 1989Paper

Regulation of goblet cell differentiation by calcium in embryonic chick intestine

FASEB Journal : Official Publication of the Federation of American Societies for Experimental Biology
B L Black, J E Smith

Abstract

The potential role of calcium as a regulator of goblet cell differentiation was tested by culturing duodenal explants from 14-day chicken embryos in media containing a range of calcium concentrations. Extracellular calcium in vitro approximated the range of plasma calcium concentration that was found to rise by 16% during the third week of embryonic development. As ionic calcium was increased from 0.9 to 2.0 mM in 48-h cultures, the number of goblet cells per 100 ridges increased progressively from 29 +/- 2.2 to 158 +/- 6.9 while attaining a distribution on the previllous ridges similar to that in ovo. The rate of goblet cell differentiation in vitro exceeded that in ovo when extracellular calcium was increased to 1.1 mM and was maximal at 1.6-2.0 mM calcium. Neither the growth of previllous ridges nor gross morphology of the tissue was altered as extracellular calcium was increased. Goblet cell differentiation in 1.3 mM calcium was stimulated by 0.1 microM calcium ionophore and inhibited by the calmodulin antagonist trifluoperazine, indicating an intracellular site for calcium action. These results indicate that calcium plays a primary role in regulating goblet cell differentiation in embryonic intestine and suggest that risin...Continue Reading

Citations

Jul 27, 1995·The New England Journal of Medicine·E M BrownS C Hebert
Jun 29, 2010·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Ozkan OzdenBrenda J Grubb
Jan 12, 2001·Physiological Reviews·E M Brown, R J MacLeod
Mar 20, 2003·Molecular and Cellular Endocrinology·Susan A HobsonKarin D Rodland
Aug 1, 1995·Current Opinion in Cell Biology·S C Hebert, E M Brown
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