Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Marie Hélène Coconnier"'
Publikováno v:
Applied and Environmental Microbiology. 71:6115-6120
The human gastrointestinal microbiota produces antagonistic activities against gastrointestinal bacterial pathogens. We undertook a study to investigate the mechanism(s) by which a Lactobacillus acidophilus strain of human microbiota origin antagoniz
Publikováno v:
Cellular Microbiology. 7:1035-1048
In vivo Listeria monocytogenes infection results in the massive release of mucus by goblet cells into the lumen of the intestine. We have previously reported that apical infection by L. monocytogenes is followed by listeriolysin O (LLO)-dependent sti
Publikováno v:
Best Practice & Research Clinical Gastroenterology. 17:741-754
Probiotic lactic acid strains are live micro-organisms that, when consumed in adequate amounts as part of food, confer a health benefit on the host. The scientific basis for the use of selected probiotic strains has only recently been firmly establis
Autor:
Marie-Elisabeth Forgue-Lafitte, Jacques Bara, Guillemette Huet, Vanessa Liévin-Le Moal, Alain L. Servin, Marie-Hélène Coconnier, Jean-Pierre Aubert
Publikováno v:
Cellular Microbiology. 4:515-529
Summary The secreted thiol-activated cytolysin listeriolysin O (LLO) was responsible for L. monocytogenes -induced high-molecular glycoproteins (HMGs) exocytosis in cultured human mucosecreting HT29-MTX cells. By biochemical analysis we demonstrate t
Autor:
Myriam Robard, Marie-Hélène Coconnier, Alain L. Servin, Elyess Dlissi, Jean-Louis Gaillard, Christian L. Laboisse
Publikováno v:
Infection and Immunity. 66:3673-3681
When the intracellular pathogen Listeria monocytogenes infects cultured human mucosecreting polarized HT29-MTX cells apically, it induces the stimulation of mucus exocytosis without cell entry. Using a set of isogenic mutants and purified listeriolys
Autor:
Marie-Hélène Coconnier, Alain L. Servin, F Duigou, Marie-Françoise Bernet-Camard, Sophie Kernéis
Publikováno v:
Infection and Immunity. 65:1299-1306
The association of enterotoxigenic Escherichia coli expressing colonization factor antigen I (CFA/I) with the cultured human colon adenocarcinoma cell, a model of the mature enterocyte of the small intestine, is dependent on the binding of CFA/I to a
Publikováno v:
Experimental Cell Research. 226:80-89
We report that the enterocytic cells of the HT-29 glc −/+ cell subpopulation strongly expressed two antimicrobial enzymes: the lysozyme and α 1 -antitrypsin. Moreover, we found that 20 to 30% of these cells expressed positive immunoreactivity usin
Publikováno v:
Gut. 38:248-253
Self protection of host cells against inadvertent injury resulting from attack by autologous complement proteins is well reported for vascular epithelium. In intestinal epithelium, the expression of C complement proteins and regulatory proteins remai
Publikováno v:
Gut. 35:1449-1454
Enterotoxigenic Escherichia coli (ETEC) bearing the fimbrial colonisation factor antigens CFA/I, CFA/II, CFA/III, and the non-fimbrial antigen 2230 were tested for their ability to adhere to two cultured human intestinal HT-29 mucus secreting cell su
Autor:
Jean-Marc Gabastou, Bogdan Nowicki, Alain L. Servin, Marie-Françoise Bernet-Camard, Marie-Hélène Coconnier, Sophie Kernéis
Publikováno v:
FEMS Microbiology Letters. 119:27-32
We have recently demonstrated that cultured human intestinal HT-29 and Caco-2 cell lines express receptors for the F1845 fimbrial adhesin harbored by the diarrheagenic C1845 Escherichia coli (Kerneis et al., Infect. Immun. 59 (1991) 4013–4018). Thi