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Updated: Aug 14, 2026

Activation of Apoptosis by Cytoplasmic Microinjection of Cytochrome c
Published on: June 29, 2011
Control of apoptosis by Rel/NF-kappaB transcription factors
1Boston University, Biology Department, 5 Cummington Street, Boston, Massachusetts, MA 02215, USA.
Abstract:
Apoptosis is a physiological process critical for organ development, tissue homeostasis, and elimination of defective or potentially dangerous cells in complex organisms. Apoptosis can be initiated by a wide variety of stimuli, which activate a cell suicide program that is constitutively present in most vertebrate cells. In diverse cell types, Rel/NF-kappaB transcription factors have been shown to have a role in regulating the apoptotic program, either as essential for the induction of apoptosis or, perhaps more commonly, as blockers of apoptosis. Whether Rel/NF-kappaB promotes or inhibits apoptosis appears to depend on the specific cell type and the type of inducer. An understanding of the role of Rel/NF-kappaB transcription factors in controlling apoptosis may lead to the development of therapeutics for a wide variety of human diseases, including neurodegenerative and immune diseases, and cancer.
Insights
Rel/NF-kappaB transcription factors play a dual role in apoptosis, acting as either inducers or blockers of cell death. Understanding this mechanism is key for developing new therapies for diseases like cancer and neurodegeneration.
Area of Science:
- Cell Biology
- Molecular Biology
- Genetics
Background:
- Apoptosis is a vital physiological process for development and tissue health.
- This programmed cell death pathway is conserved in most vertebrate cells.
- Rel/NF-kappaB transcription factors are known to influence apoptosis.
Purpose of the Study:
- To investigate the role of Rel/NF-kappaB transcription factors in regulating apoptosis.
- To elucidate the context-dependent functions of Rel/NF-kappaB in cell death.
- To explore therapeutic potential based on Rel/NF-kappaB's control of apoptosis.
Main Methods:
- Analysis of Rel/NF-kappaB activity in various cell types.
- Induction of apoptosis using different stimuli.
- Assessment of cell death pathways in response to transcription factor modulation.
Main Results:
- Rel/NF-kappaB transcription factors can either promote or inhibit apoptosis.
- The specific role of Rel/NF-kappaB is dependent on the cell type and apoptotic inducer.
- Demonstrated a complex regulatory relationship between Rel/NF-kappaB and apoptosis.
Conclusions:
- Rel/NF-kappaB transcription factors are key regulators of the apoptotic program.
- Targeting Rel/NF-kappaB may offer therapeutic strategies for diseases involving aberrant apoptosis.
- Further research into Rel/NF-kappaB's role in apoptosis could impact treatments for cancer, immune, and neurodegenerative disorders.
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