نتایج جستجو برای: peritoneal macrophages
تعداد نتایج: 100370 فیلتر نتایج به سال:
Macrophages and dendritic cells (DC) are distributed throughout the body and play important roles in pathogen detection and tissue homeostasis. In tissues, resident macrophages exhibit distinct phenotypes and activities, yet the transcriptional pathways that specify tissue-specific macrophages are largely unknown. We investigated the functions and origins of two peritoneal macrophage population...
Bacterial lipopolysaccharide and some cytokines can activate macrophages to secrete nitric oxide. Macrophage-derived nitric oxide is a key cytotoxic factor for microbicidal and tumoricidal processes. We report here that a monoclonal antibody specific for beta interferon inhibited lipopolysaccharide-induced nitric oxide production in thioglycolate-elicited C3HeB/FeJ peritoneal macrophages and ma...
Peritoneal and pleural resident macrophages in the mouse share common features and in each compartment exist as two distinct subpopulations: F4/80(+) macrophages and MHC II(+) CD11c(+) macrophages. F4/80(+) macrophages derive from embryonic precursors, and their maintenance is controlled by Gata6. However, the origin and regulatory factors that maintain MHC II(+) macrophages remain unknown. Her...
introduction: based on human studies, inequality and social injustice have adverse effects on the individual and community health. in this study, the effects of food intake inequality and social status changes on pain perception and immunological factors were investigated in balb/c mice. methods: the present study was conducted by implementing different social stresses including food deprivatio...
Previous studies from this laboratory had shown that exposure of mice to cold water stress leads to an increase in the secretion of interleukin-1 (IL-1) and tumor necrosis factor-alpha (TNF alpha) from their peritoneal macrophages. We now report that the secretion of IL-6 from peritoneal macrophages is also increased after cold water stress and that the peptide substance P (SP) participates in ...
Macrophages, phagocytic cells involved in an early phase of host defense, are known to express the P-selectin ligand, PSGL-1. Heretofore, P-selectin has only been found on platelets and endothelial cells. Here, we demonstrate that peritoneal macrophages isolated by peritoneal lavage of unchallenged mice express P-selectin on the plasma membrane. The peritoneal macrophages synthesize P-selectin,...
B-1 cells constitute a distinct B cell population with unique phenotypic and functional characteristics. They represent the main B cell population found in mouse peritoneal and pleural cavities. The communication between B-1 cells and peritoneal macrophages has been previously studied, and the effect this interaction has on macrophages has been previously described. Using an in vitro co-culture...
The relative capacities for testicular macrophages and resident peritoneal macrophages to secrete the pro-inflammatory cytokine, interleukin 1 (LL-1), in response to stimulation by bacterial lipopolysaccharide (LPS), were compared in vitro. Macrophages were isolated from adult male rat testicular interstitial cells or peritoneal lavage by adherence to glass coverslips or plastic culture dishes....
Kinetics of peritoneal macrophage turnover during infection of mice with Salmonella enteritidis or following injection with thioglycollate broth or other peritoneal stimulants has been studied. Single intravenous injections of tritiated thymidine were given and the cells were examined by autoradiography. Maximum labelling of small adherent peritoneal macrophages occurred when 3H-thymidine was g...
Virulent strains of Salmonella opsonized with normal mouse plasma are never phagocytosed as well as avirulent strains. The virulent strains of Salmonella phagocytosed after opsonization with normal mouse plasma are able to multiply within normal mouse peritoneal macrophages, whereas under similar experimental conditions the avirulent strains are killed. When virulent strains of Salmonella are o...
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