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Published on: August 25, 2021
Pro-apoptotic role of NF-kappaB: implications for cancer therapy
Senthil K Radhakrishnan1, Sitharthan Kamalakaran
1Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA. senthil@uic.edu
Abstract:
Nuclear factor-kappaB (NF-kappaB) is generally viewed as anti-apoptotic and oncogenic, leading to a quest for its inhibitors. However, recent evidence suggests that in some situations NF-kappaB may promote apoptosis. Depending on the specific cell type and the stimulus involved, NF-kappaB activation may lead to either anti- or pro-apoptotic response. Both these effects can be mediated by NF-kappaB in a context-dependent manner by selectively regulating its target genes. In this review, we discuss the evidence for NF-kappaB's pro-apoptotic role and explore the possible mechanisms behind it. We emphasize that rather than trying to inhibit NF-kappaB in cancer therapy, agents should be developed to unleash its pro-apoptotic ability.
Insights
Nuclear factor-kappaB (NF-kappaB) can promote cancer cell death, challenging its traditional role. New therapies could harness this pro-apoptotic function rather than inhibiting NF-kappaB.
Area of Science:
- Molecular Biology
- Cell Biology
- Cancer Research
Background:
- Nuclear factor-kappaB (NF-kappaB) is widely recognized for its anti-apoptotic and oncogenic properties.
- This has driven research towards developing NF-kappaB inhibitors for cancer therapy.
Purpose of the Study:
- To review the emerging evidence supporting a pro-apoptotic role for NF-kappaB.
- To explore the underlying mechanisms of NF-kappaB-mediated apoptosis.
- To re-evaluate therapeutic strategies targeting NF-kappaB in cancer.
Main Methods:
- Literature review of studies investigating NF-kappaB's role in apoptosis.
- Analysis of context-dependent gene regulation by NF-kappaB.
- Discussion of potential therapeutic implications.
Main Results:
- NF-kappaB activation can induce apoptosis in specific cellular contexts and in response to certain stimuli.
- The pro-apoptotic function is mediated by the selective regulation of NF-kappaB target genes.
- Evidence suggests a dual role for NF-kappaB, acting as either pro- or anti-apoptotic.
Conclusions:
- NF-kappaB's role in apoptosis is context-dependent, varying with cell type and stimulus.
- Therapeutic strategies should consider activating NF-kappaB's pro-apoptotic functions instead of inhibition.
- Targeting NF-kappaB to promote apoptosis offers a novel approach to cancer treatment.
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