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Detection of CD1 mRNA in Paneth cells of the mouse intestine by in situ hybridization
J Lacasse and LH Martin
National Research Council of Canada, Biotechnology Research Institute, Montreal, Quebec.
Cluster of differentiation 1 (CD1) antigens are a family of non-MHC but Class I-like molecules that have been identified in humans and rodents. Although their function(s) remains unknown, it has been proposed that CD1 may present antigens to specific subsets of peripheral T-cells. We now provide evidence in support of this hypothesis through the demonstration by in situ hybridization that Paneth cells of the mouse intestine express CD1 mRNA. These cells are thought to be involved in the immunological regulation of intestinal flora and could accomplish this task through interactions with intestinal intraepithelial lymphocytes. The expression and localization of CD1 mRNA was confirmed by both autoradiographic and non-isotopic techniques. The relevance of these results to CD1 function as well as to Paneth cell biology is discussed.
Volume 40,
Issue 10,
pp. 1527-1534,
10/01/1992
Copyright © 1992 by The Histochemical Society
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