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Phagocytosis in Biological News

Immunity stronger at night than during day

... Drosophila melanogaster, reveal that the specific immune response known as phagocytosis oscillates with the body's circadian rhythm, according to Stanford ... the bacteria invading the body. In humans, immune responses such as phagocytosis not only are involved in clearing bacterial infection but also are ...

Proteomics study yields clues as to how tuberculosis might be thwarting the immune system

... was suppressed. This indicates cross-talking between autophagy and phagocytosis that may play an important role in the response of the immune system." ... until now there has been no direct biochemical evidence of a link between phagocytosis and autophagy. Working with latex bead-containing phagosomes isolated ...

Discovery in the evolution of the immune system absorbing cells

... as well as in amphibians are capable of strong phagocytosis both in in vivo and in vitro experiments. The ... of fish and amphibians makes the preservation of phagocytosis an evolutionary advantage to B cells in their ... design of vaccines for fish in order to stimulate phagocytosis in antibodies for B cells, increasing the ...

Case Western Reserve University researchers find protein associated with brain cell death

... Signaling Cascades Require Vav for Induction of Respiratory Burst and phagocytosis in Monocytes and Microglia." The researchers discuss the role that the ... intercellular signaling cascades as well as initiate a novel type of phagocytosis (cell death) in microglia." "Vav has been found to be the key ...

UCSB researchers discover shape matters to macrophages

... Researchers at UC Santa Barbara have made a surprising discovery: phagocytosis depends more on particle shape than size. The research, which has ... believed that the ability of a macrophage to process a particle through phagocytosis was dependent solely on its size. Previous studies have been performed ...

Researchers in Montréal and the US create model of key immune-system component

... phagosome. They then constructed a detailed map of the interactions among these proteins and were able to identify previously unknown regulators of phagocytosis and potential molecular pathways of immune defense. "Phagocytosis is very similar in many organisms, so we are able to learn about this process ...

'Killer' B cells demonstrate evolutionary link between fish and mammal immune systems

... where B cells produce antibodies to fight infection, to the more primitive innate immunity in fish, where they found that B cells take part in phagocytosis (literally: cell eating), the process by which cells of the immune system ingest foreign particles and microbes. The finding, which appears in the ...

White Blood Cell 'Waste Disposal' System Plays Critical Regulatory Role

... The researchers conclude that a major mechanism for regulation of neutrophil production involves secretion of IL-23 that is regulated by phagocytosis of apoptotic neutrophils. "The discovery of neutrophil-regulating cells suggests new ways to manipulate the inflammatory system and neutrophil ...

White blood cell waste disposal system plays critical regulatory role

... The researchers conclude that a major mechanism for regulation of neutrophil production involves secretion of IL-23 that is regulated by phagocytosis of apoptotic neutrophils. "The discovery of neutrophil-regulating cells suggests new ways to manipulate the inflammatory system and neutrophil ...
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