Assessment of Cryptosporidium parvum infection in immunocompetent and immunocompromised mice and its role in triggering intestinal dysplasia
| dc.Affiliation | October University for modern sciences and Arts (MSA) | |
| dc.contributor.author | Abdou A.G. | |
| dc.contributor.author | Harba N.M. | |
| dc.contributor.author | Afifi A.F. | |
| dc.contributor.author | Elnaidany N.F. | |
| dc.contributor.other | Department of Pathology | |
| dc.contributor.other | Faculty of Medicine | |
| dc.contributor.other | Menofiya University | |
| dc.contributor.other | Shebein Elkom | |
| dc.contributor.other | Egypt; Department and Parasitology | |
| dc.contributor.other | Faculty of Medicine | |
| dc.contributor.other | Menofiya University | |
| dc.contributor.other | Shebein Elkom | |
| dc.contributor.other | Egypt; Clinical Pharmacy Department | |
| dc.contributor.other | Faculty of Pharmacy | |
| dc.contributor.other | MSA University | |
| dc.contributor.other | 6th October City | |
| dc.contributor.other | Egypt | |
| dc.date.accessioned | 2020-01-09T20:42:28Z | |
| dc.date.available | 2020-01-09T20:42:28Z | |
| dc.date.issued | 2013 | |
| dc.description | Scopus | |
| dc.description | MSA Google Scholar | |
| dc.description.abstract | Objectives: There is an association between chronic inflammation and cancer, including colon cancer. Cryptosporidium parvum is a protozoan parasite that infects the gastrointestinal epithelial cells causing several parasitological and pathological changes. It is incriminated in the development of colorectal cancer in immunosuppressed individuals. Cyclin D1 expression is essential for cell cycle progression and its overexpression has been reported in colorectal cancer. This work aimed to study the gastrointestinal changes, including parasitological and pathological changes, induced by C. parvum infection in both immunocompetent and in chemically immunosuppressed mice, together with immunohistochemical assessment of cyclin D1 expression in infected tissues. In addition, the effectiveness of nitazoxanide (NTZ) in the treatment of cryptosporidiosis was evaluated. Methods: This study included six groups of mice: group I, infected; group II, infected and immunosuppressed; group III, infected and treated with NTZ; group IV, infected, immunosuppressed, and treated with NTZ; and groups V and VI representing non-infected controls. Mice were subjected to stool examination for oocyst counts and were later sacrificed for intestinal dissection and routine histopathological examination of pathological changes; the endogenous developmental stages of the parasite were counted and immunohistochemical staining was carried out for the determination of cyclin D1. Results: Group II showed the highest numbers of oocysts shed and endogenous developmental stages compared to the other groups. Intestinal dysplastic changes were seen only in groups I and II, where these changes were in favor of group II compared to group I. High-grade dysplasia was seen in four out of 20 mice in group II and was significantly associated with the number of endogenous developmental stages of C. parvum. NTZ was effective in the treatment of Cryptosporidium infection, with a greater effect in group III than in group IV. Conclusions: C. parvum is one of the infectious agents that may induce intestinal dysplasia, including the high-grade category, which occurs particularly in the presence of immune suppression states and elevated endogenous parasite loads. Cyclin D1 is a good and useful marker for the detection of intestinal dysplasia. The effectiveness of NTZ is dependent on the immune status of the infected host. � 2013 International Society for Infectious Diseases. | en_US |
| dc.description.uri | https://www.scimagojr.com/journalsearch.php?q=22380&tip=sid&clean=0 | |
| dc.identifier.doi | https://doi.org/10.1016/j.ijid.2012.11.023 | |
| dc.identifier.doi | PubMed ID : | |
| dc.identifier.issn | 12019712 | |
| dc.identifier.other | https://doi.org/10.1016/j.ijid.2012.11.023 | |
| dc.identifier.other | PubMed ID : | |
| dc.identifier.uri | https://t.ly/xREwK | |
| dc.language.iso | English | en_US |
| dc.publisher | Elsevier B.V. | en_US |
| dc.relation.ispartofseries | International Journal of Infectious Diseases | |
| dc.relation.ispartofseries | 17 | |
| dc.subject | Cryptosporidium parvum | en_US |
| dc.subject | Cyclin D1 | en_US |
| dc.subject | Intestinal dysplasia | en_US |
| dc.subject | Nitazoxanide | en_US |
| dc.subject | cyclin D1 | en_US |
| dc.subject | dexamethasone | en_US |
| dc.subject | nitazoxanide | en_US |
| dc.subject | animal experiment | en_US |
| dc.subject | animal model | en_US |
| dc.subject | animal tissue | en_US |
| dc.subject | article | en_US |
| dc.subject | controlled study | en_US |
| dc.subject | cryptosporidiosis | en_US |
| dc.subject | Cryptosporidium parvum | en_US |
| dc.subject | developmental stage | en_US |
| dc.subject | drug efficacy | en_US |
| dc.subject | feces analysis | en_US |
| dc.subject | female | en_US |
| dc.subject | gastrointestinal dysplasia | en_US |
| dc.subject | histopathology | en_US |
| dc.subject | immunocompromised patient | en_US |
| dc.subject | mouse | en_US |
| dc.subject | nonhuman | en_US |
| dc.subject | oocyst | en_US |
| dc.subject | protein expression | en_US |
| dc.title | Assessment of Cryptosporidium parvum infection in immunocompetent and immunocompromised mice and its role in triggering intestinal dysplasia | en_US |
| dc.type | Article | en_US |
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| dcterms.source | Scopus |