نتایج جستجو برای: exotoxin a

تعداد نتایج: 13432050  

Journal: :BioMed research international 2015
Ka Lok Hong Kailey Yancey Luisa Battistella Ryan M Williams Katherine M Hickey Chris D Bostick Peter M Gannett Letha J Sooter

Exotoxin A is one of the virulence factors of Pseudomonas aeruginosa, a bacterium that can cause infections resulting in adverse health outcomes and increased burden to health care systems. Current methods of diagnosing P. aeruginosa infections are time consuming and can require significant preparation of patient samples. This study utilized a novel variation of the Systematic Evolution of Liga...

Journal: :The Journal of biological chemistry 1992
N Arora K R Klimpel Y Singh S H Leppla

The lethal factor (LF) and edema factor (EF) components of anthrax toxin are toxic to animal cells only if internalized by interaction with the protective antigen (PA) component. PA binds to a cell surface receptor and is proteolytically cleaved to expose a binding site for LF and EF. To study how LF and EF are internalized and trafficked within cells, LF was fused to the translocation and ADP-...

2014
Nai-Yun Chang Zeng-Weng Chen Ter-Hsin Chen Jiunn-Wang Liao Cheng-Chung Lin Maw-Sheng Chien Wei-Cheng Lee Jiunn-Horng Lin Shih-Ling Hsuan

Exotoxins produced by Actinobacillus (A.) pleuropneumoniae (Apx) play major roles in the pathogenesis of pleuropneumonia in swine. This study investigated the role of ApxI in hemolysis and cellular damage using a novel apxIA mutant, ApxIA336, which was developed from the parental strain A. pleuropneumoniae serotype 10 that produces only ApxI in vitro. The genotype of ApxIA336 was confirmed by P...

Journal: :The Journal of Experimental Medicine 2003
Peter K. Olitsky I. J. Kligler

With the methods which have been described we have separated an exotoxin and an endotoxin from cultures of the Shiga dysenteric bacillus. The study of the nature and effect of the poison of this microorganism is thus simplified. The two toxins are physically and biologically distinct. The exotoxin is relatively heat-labile, arises in the early period of growth, and yields an antiexotoxic immune...

2010
Frédéric Heymans Adrien Fischer Nicholas W. Stow Myriam Girard Zacharias Vourexakis Antoine Des Courtis Gesuele Renzi Elzbieta Huggler Stefan Vlaminck Pierre Bonfils Ranko Mladina Valerie Lund Jacques Schrenzel Patrice François Jean Silvain Lacroix

BACKGROUND Staphylococcus aureus secretes numerous exotoxins which may exhibit superantigenic properties. Whereas the virulence of several of them is well documented, their exact biological effects are not fully understood. Exotoxins may influence the immune and inflammatory state of various organs, including the sinonasal mucosa: their possible involvement in chronic rhinosinusitis has been su...

Journal: :Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease 2005

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