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Anti-CD14 mAb Treatment Provides Therapeutic Benefit After in Vivo Exposure to Endotoxin

J Schimke, J Mathison, J Morgiewicz, R J Ulevitch

Proc Natl Acad Sci U S A. 1998 Nov 10;95(23):13875-80.

PMID: 9811894

Abstract:

The presence of endotoxin from Gram-negative bacteria signals the innate immune system to up-regulate bacterial clearance and/or killing mechanisms. Paradoxically, such responses also contribute to septic shock, a clinical problem occurring with high frequency in Gram-negative septicemia. CD14 is a receptor for endotoxin (lipopolysaccharide, LPS) and is thought to have an essential role in innate immune responses to infection and thereby in the development of septic shock. Using a novel rabbit model of endotoxic shock produced by multiple exposures to endotoxin, we show that anti-rabbit CD14 mAb, which blocks LPS-CD14 binding, protects against organ injury and death even when the antibody is administered after initial exposures to LPS. In contrast, anti-rabbit tumor necrosis factor mAb treatment fails to protect when administered after LPS injections. These results support the concept that anti-CD14 treatment provides a new therapeutic window for the prevention of pathophysiologic changes that result from cumulative exposures to LPS during septic shock in man.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
IAR42414707 Anti-CD14 antibody produced in rabbit Anti-CD14 antibody produced in rabbit Price
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