Titre :

Cryptosporidium parvum-induced ileo-caecal adenocarcinoma and Wnt signaling in a mouse model

Auteur(s) :

Benamrouz, Sadia [Auteur]
Université catholique de Lille [UCL]
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]
Conseil, Valerie [Auteur]
Université catholique de Lille [UCL]
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]
Chabé, Magali [Auteur]
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]
Praet, Marleen [Auteur]
Universiteit Gent = Ghent University = Université de Gand [UGENT]
Audebert, Christophe [Auteur]
Institut Pasteur de Lille
Blervaque, Renaud [Auteur]
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]
Guyot, Karine [Auteur]
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]
Gazzola, Sophie [Auteur]
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]
Mouray, Anthony [Auteur]
Institut Pasteur de Lille
Chassat, Thierry [Auteur]
Institut Pasteur de Lille
Delaire, Baptiste [Auteur]
Groupement des Hôpitaux de l'Institut Catholique de Lille [GHICL]
Goetinck, Nathalie [Auteur]
Centre Hospitalier Régional Universitaire [CHU Lille] [CHRU Lille]
Gantois, Nausicaa [Auteur]
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]
Osman, Marwan [Auteur]
الجامعة اللبنانية [بيروت] = Lebanese University [Beirut] = Université libanaise [Beyrouth] [LU / ULB]
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]
Slomianny, Christian [Auteur]
Laboratoire de Physiologie Cellulaire - U 1003 [PHYCELL]
Dehennaut, Vanessa [Auteur]
Unité de Glycobiologie Structurale et Fonctionnelle - UMR 8576 [UGSF]
Lefebvre, Tony [Auteur]
Unité de Glycobiologie Structurale et Fonctionnelle - UMR 8576 [UGSF]
Viscogliosi, Eric [Auteur]
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]
Cuvelier, Claude [Auteur]
Universiteit Gent = Ghent University = Université de Gand [UGENT]
Dei-Cas, Eduardo [Auteur]
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]
Creusy, Colette [Auteur]
Groupement des Hôpitaux de l'Institut Catholique de Lille [GHICL]
Certad, Gabriela [Auteur]
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]

Titre de la revue :

Disease Models & Mechanisms

Pagination :

693-700

Éditeur :

Cambridge Company of Biologists

Date de publication :

2014

ISSN :

1754-8403

Mot(s)-clé(s) en anglais :

Adenocarcinoma
Signal Transduction
beta Catenin
Wnt pathway
Wnt Proteins
Cryptosporidiosis
Digestive cancer
Genes
p53
Animals
Cryptosporidium parvum
Cadherins
Cytoskeleton
Mice
SCID mouse model
ras
Intestinal Neoplasms
Disease Models
Animal

Discipline(s) HAL :

Sciences du Vivant [q-bio]/Médecine humaine et pathologie/Maladies infectieuses
Sciences du Vivant [q-bio]/Cancer
Sciences du Vivant [q-bio]/Médecine humaine et pathologie/Hépatologie et Gastroentérologie
Sciences du Vivant [q-bio]/Biochimie, Biologie Moléculaire

Résumé en anglais : [en]

Cryptosporidium species are apicomplexan protozoans that are found worldwide. These parasites constitute a large risk to human and animal health. They cause self-limited diarrhea in immunocompetent hosts and a life-threatening ...
Lire la suite >Cryptosporidium species are apicomplexan protozoans that are found worldwide. These parasites constitute a large risk to human and animal health. They cause self-limited diarrhea in immunocompetent hosts and a life-threatening disease in immunocompromised hosts. Interestingly, Cryptosporidium parvum has been related to digestive carcinogenesis in humans. Consistent with a potential tumorigenic role of this parasite, in an original reproducible animal model of chronic cryptosporidiosis based on dexamethasone-treated or untreated adult SCID mice, we formerly reported that C. parvum (strains of animal and human origin) is able to induce digestive adenocarcinoma even in infections induced with very low inoculum. The aim of this study was to further characterize this animal model and to explore metabolic pathways potentially involved in the development of C. parvum-induced ileo-caecal oncogenesis. We searched for alterations in genes or proteins commonly involved in cell cycle, differentiation or cell migration, such as β-catenin, Apc, E-cadherin, Kras and p53. After infection of animals with C. parvum we demonstrated immunohistochemical abnormal localization of Wnt signaling pathway components and p53. Mutations in the selected loci of studied genes were not found after high-throughput sequencing. Furthermore, alterations in the ultrastructure of adherens junctions of the ileo-caecal neoplastic epithelia of C. parvum-infected mice were recorded using transmission electron microscopy. In conclusion, we found for the first time that the Wnt signaling pathway, and particularly the cytoskeleton network, seems to be pivotal for the development of the C. parvum-induced neoplastic process and cell migration of transformed cells. Furthermore, this model is a valuable tool in understanding the host-pathogen interactions associated with the intricate infection process of this parasite, which is able to modulate host cytoskeleton activities and several host-cell biological processes and remains a significant cause of infection worldwide.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Non spécifiée

Vulgarisation :

Non

Collections :

• Centre d'Infection et d'Immunité de Lille (CIIL) - U1019 - UMR 9017

Source :

Harvested from HAL