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Infect Immun, April 1998, p. 1787-1790, Vol. 66, No. 4
0019-9567/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.
Human Intestinal Epithelial Cells Respond to
Cryptosporidium parvum Infection with Increased
Prostaglandin H Synthase 2 Expression and Prostaglandin E2
and F2
Production
Fabrice
Laurent,1
Martin F.
Kagnoff,1
Tor C.
Savidge,2,
Muriel
Naciri,3 and
Lars
Eckmann1,*
Laboratory of Mucosal Immunology, Department
of Medicine, University of California, San Diego, La Jolla,
California 920931;
Department of
Cellular Physiology, The Babraham Institute, Babraham, Cambridge CB2
4AT, United Kingdom2; and
Laboratoire de Protozoologie, Centre INRA de Tours, 37380 Nouzilly, France3
Received 7 October 1997/Returned for modification 6 November
1997/Accepted 14 January 1998
Cryptosporidium parvum is an important cause of
diarrhea in humans and several animal species. Prostaglandins play a
central role in regulating intestinal fluid secretion in animal models of cryptosporidiosis, but their cellular sources and mechanisms of
induction are unclear. Here, we show that C. parvum
infection directly activates prostaglandin H synthase 2 expression and
prostaglandin E2 and F2
production in human
intestinal epithelial cells.
*
Corresponding author. Mailing address: University of
California, San Diego, Department of Medicine 0623D, 9500 Gilman Dr., La Jolla, CA 92093-0623. Phone: (619) 534 0683. Fax: (619) 534 5691. E-mail: leckmann{at}ucsd.edu.

Present address: Institute of Child Health, University of
Birmingham, Birmingham B16 8ET, United Kingdom.
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