However, Vibrio-challenged hemocytes showed lower capacity to phagocytose
In contrast macrophages of normal subjects phagocytose
Additionally, activated macrophages phagocytose
and degrade senescent erythrocytes for iron recycling, a TNF[alpha] induced process via damaging of erythrocyte membranes and stimulation of phagocytosis.
One source of ROS production in physiological circumstances is stimulated neutrophils which play a central role in host defence and are requited in vast numbers to sites of infections where they phagocytose
and kill invading bacterial pathogens.
Malignant conditions that one should consider include carcinoma and melanoma metastatic to the salivary gland, since malignant cells may show a propensity to phagocytose
These inventions derive from the observation that cells not normally expressing Fc receptors can be made to phagocytose
antibody coated cells and immune complexes following introduction of a gene for an appropriate Fc receptor.
Several studies have demonstrated their ability to phagocytose
immediately after contacting a variety of nonself material such as bacteria (Bachere et al.
The causative agent is Lacazia loboi (2), a fungus of uncertain phylogeny, which causes an inflammatory infiltrate accompanied by the formation of a granuloma in which giant cells phagocytose
a larger number of fungi (3,4).
Other possible explanations for the greater toxicity of ultrafine particles relative to fine particles include decreased ability of macrophages to phagocytose
ultrafine particles (Kreyling and Scheuch 2000) or inhibition of phagocytosis by ultrafine particles (Donaldson et al.
Hemocytes are considered to be the primary cellular effectors because of their ability to recognize, phagocytose
and destroy a spectrum of microbes including bacteria, yeast and Perkinsus marinus meronts (La Peyre et al.
Neutrophils can produce chemokines and other inflammatory mediators that enhance accumulation of monocytes into infected lung areas (Cassatella 1995), and at least human neutrophils have been reported to be able to phagocytose
and kill slow-growing mycobacteria (Jones et al.
ROS also damage cytoskeletal proteins, leading to a probable loss in defense function, because hemocyte adhesion, motility, endocytic ability and the capacity to phagocytose
foreign particles all depend on the cytoskeleton (Bellomo & Mirabelli 1992).