نتایج جستجو برای: cytotoxin assosiated gene a

تعداد نتایج: 13657872  

Ehsanollah Ghaznavi-Rad Hamid Abtahi, Leila Hasanzadeh Safieh Soufian Vahideh Farjadi

Objective(s): Helicobacter pylori, a human specific gastric pathogen is a causative agent of chronic active gastritis. The vacuolating cytotoxin (VacA) is an effective virulence factor involved in gastric injury. The aim of this study was to construct a recombinant protein containing antigenic region of VacA gene and determine its antigenicity.   Materials and Methods: The antigenic region of V...

Journal: :iranian journal of microbiology 0
hossein sedaghat department of microbiology and immunology, faculty of medicine, anatomical sciences research center, kashan university of medical sciences, kashan, iran. rezvan moniri department of microbiology and immunology, faculty of medicine, anatomical sciences research center, kashan university of medical sciences, kashan, iran ; department of microbiology and immunology, faculty of medicine, anatomical sciences research center, kashan university of medical sciences, kashan, iran. raika jamali gastroenterology department, sina hospital,tehran university of medical sciences, tehran, iran. abbas arj gastroenterology department, beheshti hospital,kashan university of medical sciences, kashan, iran. mohsen razavi zadeh gastroenterology department, beheshti hospital,kashan university of medical sciences, kashan, iran. seyed gholam abbas moosavi gastroenterology department, beheshti hospital,kashan university of medical sciences, kashan, iran.

helicobacter pylori has been strongly associated with peptic ulcer diseases, chronic gastritis, ulcers, and reported as a risk factor for gastric cancer, too. the vaculating cytotoxin (vaca), the cytotoxin associated genes (caga), the induced by contact with epithelium factor antigen (icea gene), blood adhesion binding antigen (baba2), and outer membrane protein oipa have been described as diff...

Journal: :Infection and immunity 1989
J L Kluftinger F Lutz R E Hancock

Pseudomonas aeruginosa cytotoxin has been isolated previously from cell autolysates. Both purified cytotoxin and periplasmic contents (osmotic shock fluid) cross-reacted on Western immunoblots with antibodies specific for cytotoxin. In addition, both preparations caused a significant reduction in antibody-mediated phagocytosis of P. aeruginosa M2 by mouse macrophage cell line P388D1. Phagocytos...

Journal: :The Journal of Experimental Medicine 1994
J L Telford P Ghiara M Dell'Orco M Comanducci D Burroni M Bugnoli M F Tecce S Censini A Covacci Z Xiang

The gram negative, microaerophilic bacterium Helicobacter pylori colonizes the human gastric mucosa and establishes a chronic infection that is tightly associated with atrophic gastritis, peptic ulcer, and gastric carcinoma. Cloning of the H. pylori cytotoxin gene shows that the protein is synthesized as a 140-kD precursor that is processed to a 94-kD fully active toxin. Oral administration to ...

2017
Eiji Kotani Hajime Mori

Specific gene functions have been successfully suppressed by gene silencing or editing in many organisms. However, genetic manipulation to suppress the function of a target tissue has not been achieved using genes such as cytotoxin family members. We established transgenic silkworms with posterior silk glands (PSGs) that express the enzymatic domain of the cytotoxin pierisin-1A (P1A), a recentl...

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