Targeting NF-κB signaling pathway in cancer by dietary polyphenols

Area of Science:

• Biochemistry
• Molecular Biology
• Oncology

Background:

• Nuclear factor kappa B (NF-κB) is a transcription factor regulating genes involved in cell survival, proliferation, metastasis, and angiogenesis.
• NF-κB activation is central to inflammation and cancer development, making its down-regulation a potential cancer prevention and treatment target.
• NF-κB's role as a tumor promoter or suppressor is context-dependent, varying with the organ of action.

Purpose of the Study:

• To review the anticancer effects of polyphenols.
• To highlight the regulation of the NF-κB signaling pathway by polyphenols.
• To explore polyphenols as a therapeutic strategy against cancer via NF-κB inhibition.

Main Methods:

• Literature review focusing on studies investigating polyphenols and NF-κB signaling.
• Analysis of mechanisms by which polyphenols interact with the NF-κB pathway.
• Synthesis of evidence on the anticancer effects mediated by NF-κB inhibition.

Main Results:

• Polyphenols negatively regulate the NF-κB signaling pathway.
• Polyphenols inhibit key steps including kinase phosphorylation, nuclear translocation of NF-κB, and DNA binding.
• These actions lead to downregulation of inflammatory cascades, induction of apoptosis, and reduced cell proliferation and metastasis.

Conclusions:

• Polyphenols exhibit significant anticancer properties through the modulation of the NF-κB signaling pathway.
• Targeting NF-κB with polyphenols presents a promising strategy for cancer prevention and treatment.
• Further research into specific polyphenols and their mechanisms is warranted for clinical applications.