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2014 ; 261
(1
): 84-101
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Innate immune regulation by STAT-mediated transcriptional mechanisms
#MMPMID25123278
Li HS
; Watowich SS
Immunol Rev
2014[Sep]; 261
(1
): 84-101
PMID25123278
show ga
The term innate immunity typically refers to a quick but non-specific host
defense response against invading pathogens. The innate immune system comprises
particular immune cell populations, epithelial barriers, and numerous secretory
mediators including cytokines, chemokines, and defense peptides. Innate immune
cells are also now recognized to play important contributing roles in cancer and
pathological inflammatory conditions. Innate immunity relies on rapid signal
transduction elicited upon pathogen recognition via pattern recognition receptors
(PRRs) and cell:cell communication conducted by soluble mediators, including
cytokines. A majority of cytokines involved in innate immune signaling use a
molecular cascade encompassing receptor-associated Jak protein tyrosine kinases
and STAT (signal transducer and activator of transcription) transcriptional
regulators. Here, we focus on roles for STAT proteins in three major innate
immune subsets: neutrophils, macrophages, and dendritic cells (DCs). While
knowledge in this area is only now emerging, understanding the molecular
regulation of these cell types is necessary for developing new approaches to
treat human disorders such as inflammatory conditions, autoimmunity, and cancer.