Acquisition ofstcE,a C1 Esterase Inhibitor–Specific Metalloprotease, during the Evolution ofEscherichia coliO157:H7
نویسندگان
چکیده
منابع مشابه
Potentiation of C1 Esterase Inhibitor by StcE, a Metalloprotease Secreted by Escherichia coli O157:H7
The complement system is an essential component of host defense against pathogens. Previous research in our laboratory identified StcE, a metalloprotease secreted by Escherichia coli O157:H7 that cleaves the serpin C1 esterase inhibitor (C1-INH), a major regulator of the classical complement cascade. Analyses of StcE-treated C1-INH activity revealed that surprisingly, StcE enhanced the ability ...
متن کاملCLINICAL REVIEW Acquired C1 Esterase Inhibitor Deficiency
Acquired C1 esterase inhibitor deficiency is a rare condition associated with autoimmune or low-grade lymphoproliferative disorders. Adults or elderly patients are most commonly affected. The diagnosis is suspected when patients present with recurrent angioedema and low serum levels of C4 with normal levels of C3. Low levels of C1q and low C1 esterase inhibitor activity confirm the diagnosis. I...
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BACKGROUND Complement activation during reperfusion of ischemic myocardium augments myocardial injury, and complement inhibition with C1-esterase inhibitor (C1-INH) at the time of reperfusion exerts marked cardioprotective effects in experimental studies. Application of C1-INH in newborns, however, was recently reported to have dangerous and even lethal side effects. This study addresses the es...
متن کاملangioedema in a patient with c1 esterase inhibitor deficiency
angioedema is characterized by recurrent, circumscribed, solitary or multiple subcutaneous and mucosal swelling, involving the extremities, face, larynx, bowel wall. angioedema is due to hereditary or acquired varieties of c1 esterase inhibitor (c1inh) deficiency. a case of atypical acquired angioedema in a 49-year old man, responding favourably to cinnarizine and alcohol abstinence, is present...
متن کاملEndotoxin-induced pulmonary dysfunction is prevented by C1-esterase inhibitor.
In septic shock, hypotension, disseminated intravascular coagulation, and neutrophil activation are related to the activation of the blood coagulation contact system. This study evaluates in dogs the effect of the C1-esterase inhibitor (C1-INH), a main inhibitor of the blood coagulation contact system, on the cardiovascular and respiratory dysfunction associated with endotoxic shock. Two groups...
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ژورنال
عنوان ژورنال: The Journal of Infectious Diseases
سال: 2003
ISSN: 0022-1899,1537-6613
DOI: 10.1086/374719