期刊
TRENDS IN IMMUNOLOGY
卷 25, 期 6, 页码 280-288出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.it.2004.03.008
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资金
- NIAID NIH HHS [AI 43477] Funding Source: Medline
- NIEHS NIH HHS [ES 10337, ES 06376] Funding Source: Medline
- PHS HHS [DJ 35108] Funding Source: Medline
NF-kappaB was first described as a B-cell-specific transcription factor that binds the kappaB site in the Ig kappa light chain enhancer. Soon after, NF-kappaB activity was found to be inducible in all cell types and it is now known that members of the NF-kappaB/Rel family regulate many genes involved in immune and inflammatory responses. Until recently, only a single NF-kappaB signaling pathway was known, whereby NF-kappaB activity is stimulated by proinflammatory cytokines, such as tumor necrosis factor-alpha (TNF-alpha) and interleukin-1 (IL-1), as well as by pathogen-associated molecular patterns (PAMPs). However, two years ago, a second pathway leading to NF-kappaB activation was discovered. This pathway, now known as the alternative pathway, is activated by certain members of the TNF cytokine family but not by TNF-alpha itself. Recent results strongly suggest that the classical and alternative pathways to NF-kappaB activation have distinct regulatory functions, one that is mostly involved in innate immunity and the other in adaptive immunity.
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