Endotoxin Tolerance. I. Its Induction by Experimental Pyelonephritis.
نویسنده
چکیده
منابع مشابه
In vivo endotoxin tolerance
Endotoxin tolerance is defined as a reduced responsiveness to a lipopolysaccharide (LPS) challenge following a first encounter with endotoxin. Endotoxin tolerance protects against a lethal challenge of LPS and prevents infection and ischemia-reperfusion damage. Endotoxin tolerance is paralleled by a dramatic reduction of tumor necrosis factor (TNF) production and some other cytokines in respons...
متن کاملEvaluation of the role of TLR4 in endotoxin-induced hepatic encephalopathy in rats with biliary cirrhosis
Background: Hepatic encephalopathy is defined as a neuropsychiatric brain dysfunction in acute or chronic liver failure. Infection and inflammation have crucial role in its pathophysiology. The purpose of our study was to demonstrate the relationship between toll-like receptor 4 (TLR4) expression and the encephalopathy induced with endotoxin in biliary cirrhotic rats. Methods: The present stud...
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The innate immune system, acting as the first line of host defense, senses and adapts to foreign challenges through complex intracellular and intercellular signaling networks. Endotoxin tolerance and priming elicited by macrophages are classic examples of the complex adaptation of innate immune cells. Upon repetitive exposures to different doses of bacterial endotoxin (lipopolysaccharide) or ot...
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Endotoxin tolerance occurs to protect the organism from hyperactivation of innate immune responses, primarily mediated by macrophages. Regulation of endotoxin tolerance occurs at multiple levels of cell responses and requires significant changes in gene expression. In the process of macrophage activation, induced expression of microRNA (miR)-155 and miR-146a contributes to the regulation of the...
متن کاملIL-12 suppression during experimental endotoxin tolerance: dendritic cell loss and macrophage hyporesponsiveness.
Endotoxin tolerance, the transient, secondary down-regulation of a subset of endotoxin-driven responses after exposure to bacterial products, is thought to be an adaptive response providing protection from pathological hyperactivation of the innate immune system during bacterial infection. However, although protecting from the development of sepsis, endotoxin tolerance also can lead to fatal bl...
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عنوان ژورنال:
- The Journal of clinical investigation
دوره 42 5 شماره
صفحات -
تاریخ انتشار 1963