Journal
JOURNAL OF MOLECULAR MEDICINE-JMM
Volume 85, Issue 11, Pages 1187-1202Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00109-007-0227-9
Keywords
nuclear factor-KB; DNA damage; cancer; ATM; cancer therapy
Funding
- NCI NIH HHS [R01CA077474, R01 CA077474] Funding Source: Medline
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The nuclear factor-KB (NF-KB) family of dimeric transcription factors plays pivotal roles in physiologic and pathologic processes, including immune and inflammatory responses and development and progression of various human cancers. Inactive NF-KB dimers normally exist in the cytoplasm in association with inhibitor proteins belonging to the inhibitor of NF-KB (IKB) family of related proteins. Activation of NF-KB involves its release from IKB and subsequent nuclear translocation to induce expression of target genes. Intense research effort has revealed many distinct signaling pathways and mechanisms of NF-KB activation induced by irrimune and inflammatory stimuli. These aspects of NF-KB biology have been amply reviewed in the literature. However, those that involve DNA-damaging agents are less well understood, and multiple conflicting pathways and mechanisms have been described in the literature. In this review, we summarize the proposed mechanisms of NF-KB activation by various DNA-darnaging agents, discuss the significance of such activation in the context of cancer treatment, and highlight some of the critical questions that remain to be addressed in future studies.
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