How human leukocytes track down and destroy pathogens: lessons learned from the model organism Dictyostelium discoideum.

Abstract:

:Human leukocytes, including macrophages and neutrophils, are phagocytic immune cells that capture and engulf pathogens and subsequently destroy them in intracellular vesicles. To accomplish this vital task, these leukocytes utilize two basic cell behaviors-chemotaxis for chasing down infectious pathogens and phagocytosis for destroying them. The molecular mechanisms controlling these behaviors are not well understood for immune cells. Interestingly, a soil amoeba, Dictyostelium discoideum, uses these same behaviors to pursue and injest its bacterial food source and to organize its multi-cellular development. Consequently, studies of this model system have provided and will continue to provide us with mechanistic insights into the chemotaxis and phagocytosis of immune cells. Here, we review recent research in these areas that have been conducted in the Chemotaxis Signal Section of NIAID's Laboratory of Immunogenetics.

journal_name

Immunol Res

journal_title

Immunologic research

authors

Jin T,Xu X,Fang J,Isik N,Yan J,Brzostowski JA,Hereld D

doi

10.1007/s12026-008-8056-7

subject

Has Abstract

pub_date

2009-01-01 00:00:00

pages

118-27

issue

1-3

eissn

0257-277X

issn

1559-0755

journal_volume

43

pub_type

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