Immunohistochemical detection of cryptosporidium-induced intestinal tissue alterations in dexamethasone treated & un- treated mice

Theodor Bilharz Research Institute

Bibliographic Information

Authors: Abdelmksoud H.F.; Ismail M.A.M.; Amer N.M.; El Akkad D.M.H.; Magdy M.

Journal: Journal of Global Pharma Technology

Publisher: Journal of Global Pharma Technology

Publication Date: 2018

Volume / Issue: Volume 10 / Issue 7

Pages: 178–191

ISSN: 9758542

Scopus: View on Scopus

Document Type: Article

Authors and Affiliations

Abdelmksoud H.F., Department of Medical Parasitology and Pathology, Faculty of Medicine, Cairo University, Giza, Egypt; Ismail M.A.M., Theodor Bilharz Research Institute, Department of Medical Parasitology, Faculty of Medicine, Cairo University, Imbaba P. O. Box 30, Giza, Egypt; Amer N.M., Department of Medical Parasitology and Pathology, Faculty of Medicine, Cairo University, Giza, Egypt; El Akkad D.M.H., Theodor Bilharz Research Institute, Department of Medical Parasitology, Faculty of Medicine, Cairo University, Imbaba P. O. Box 30, Giza, Egypt; Magdy M., Department of Medical Parasitology and Pathology, Faculty of Medicine, Cairo University, Giza, Egypt

Abstract

Cryptosporidium parvum (C. parvum) is coccidian protozoan that causes cryptosporidiosis, a parasitic disease of the mammalian intestinal tract. C. parvum is considered one of the most important waterborne pathogen among the most relevant parasitic enteric agents in man and animals. It is resistant to all practical levels of chlorination and it is an obligate intracellular pathogen. It has been the cause of multiple diarrhea outbreaks in developed and developing countries. The present work was carried out to evaluate the pathological, immuno-histochemical and molecular changes in the ileocecal region induced by chronic irritation with different inoculum sizes of cryptosporidium (50,500 oocysts) in immunocompetent and immunosuppressed mice. The mice were euthanized at different dates starting from 14, 21, 36, 45, 57 till day 64 to study these transformations. Histopathological examination of the ileocecal region revealed neoplastic changes in the form of dysplasia, polypoid structures, architectural distortion, glandular crowding, marked cellular atypia, exophytic adenomatous polypi, intramuscular adenocarcinoma and marked nuclear anaplasia. Immunohistochemical results showed positive K-ras expression. The present study proved that Cryptosporidium species is one of the infectious agents that may induce intestinal neoplasia, which is highly affected by repeated exposure and elevated parasite loads. © 2009-2018, JGPT.

Keywords

Cryptosporidium Mice; Histopathology; Immunohistochemistry; Intestinal tissue alterations; dexamethasone; K ras protein; anaplastic carcinoma; animal experiment; animal model; Article; chlorination; comparative study; controlled study; crowding (area); cryptosporidiosis; Cryptosporidium; Cryptosporidium parvum; developing country; diarrhea; epidemic; female; immune status; immunocompetent cell; immunosuppressive treatment; intestine tissue; nonhuman; oocyst; parasite load

Citation Information

Scopus Citations: 0

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