منابع مشابه
The “Phagocytic Synapse” and Clearance of Apoptotic Cells
Apoptosis and subsequent phagocytic clearance of apoptotic cells is important for embryonic development, maintenance of tissues that require regular cellular renewal and innate immunity. The timely removal of apoptotic cells prevents progression to secondary necrosis and release of cellular contents, preventing cellular stress and inflammation. In addition, altered phagocyte behavior following ...
متن کاملQuantitative discrimination of hepatic reticuloendothelial clearance and phagocytic killing.
An in vivo assay to quantify simultaneously two important components of hepatic reticuloendothelial system (RES) function--clearance and phagocytic killing--was developed in the rat. Intravenously injected E. coli labeled with Na51Cr and 5-[125I]-iodo-2'-deoxyuridine were cleared rapidly from the blood primarily by the liver. While hepatic 51Cr levels remained stable for 24 h following inoculat...
متن کاملHIV Impairs Opsonic Phagocytic Clearance of Pregnancy-Associated Malaria Parasites
BACKGROUND Primigravid (PG) women are at risk for pregnancy-associated malaria (PAM). Multigravid (MG) women acquire protection against PAM; however, HIV infection impairs this protective response. Protection against PAM is associated with the production of IgG specific for variant surface antigens (VSA-PAM) expressed by chondroitin sulfate A (CSA)-adhering parasitized erythrocytes (PEs). We hy...
متن کاملDefective Phagocytic Corpse Processing Results in Neurodegeneration and Can Be Rescued by TORC1 Activation.
UNLABELLED The removal of apoptotic cell corpses is important for maintaining homeostasis. Previously, defects in apoptotic cell clearance have been linked to neurodegeneration. However, the mechanisms underlying this are still poorly understood. In this study, we report that the absence of the phagocytic receptor Draper in glia leads to a pronounced accumulation of apoptotic neurons in the bra...
متن کاملA functional NADPH oxidase prevents caspase involvement in the clearance of phagocytic neutrophils.
Neutrophils play a prominent role in host defense. Phagocytosis of bacteria leads to the formation of an active NADPH oxidase complex that generates reactive oxygen species for bactericidal purposes. A critical step in the resolution of inflammation is the uptake of neutrophils by macrophages; however, there are conflicting reports on the mechanisms leading to the apoptosis of phagocytic neutro...
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ژورنال
عنوان ژورنال: The American Journal of Pathology
سال: 2011
ISSN: 0002-9440
DOI: 10.1016/j.ajpath.2010.12.051