Epithelial-mesenchymal interaction in differentiation of duodenal epithelium of fetal rats in organ culture |
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Authors: | H Fukamachi S Takayama |
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Institution: | (1) Zoological Institute Faculty of Science, University of Tokyo, Hongo, 113 Tokyo, (Japan);(2) Department of Experimental Pathology, Cancer Institute, 1-37-1, Kami-Ikebukuro, Toshima-ku, 170 Tokyo, (Japan) |
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Abstract: | Summary Epithelial-mesenchymal interaction in the differentiation of duodenal epithelium of fetal rats was investigated by recombination experiments in vitro. The proportion of goblet cells in duodenal epithelium was significantly greater on recombination of developing duodenal epithelium with mesenchyme of the glandular stomach than on recombination with that of the duodenum. Mesenchyme of the glandular stomach or forestomach was better than duodenal mesenchyme in supporting morphogenesis of duodenal epithelium. Treatment of tissues with N-methyl-N-nitro-N-nitrosoguanidine (MNNG) did not affect these tissue interactions.This work was supported by grants-in-aid for cancer research from the Ministry of Education, Science and Culture, Japan.Acknowledgment. The authors wish to express their gratitude to Prof. T. Mizuno of the University of Tokyo for valuable suggestions. |
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