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Updated: Jun 8, 2026

A Guide to Production, Crystallization, and Structure Determination of Human IKK1/α
Published on: November 2, 2018
IKK- and NF-κB-mediated functions in carcinogenesis
Melek C Arkan1, Florian R Greten
12nd Department of Medicine, Klinikum rechts der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany.
Abstract:
Since the initial cloning of RelA and its close relationship to c-Rel, the cellular homolog of the viral oncoprotein v-Rel, the nuclear factor κB (NF-κB) signaling pathway and its upstream activating kinase complex (IκB-kinase) have been suspected to play a major role in tumorigenesis. This was further corroborated by the discovery of oncogenic mutations in NF-κB proteins in certain lymphoid malignancies and the notion that NF-κB is persistently activated in a large variety of solid tumors. With the advent of conditional knockout mice allowing tissue-specific targeting of the various components of the NF-κB signaling pathway, it was possible to genetically test the cell autonomous and non-autonomous functions of NF-κB in inflammation-associated cancer as well as sporadic cancers. Here, we review molecular evidence that demonstrates the various functions of NF-κB during different tumor stages and that supports the rationale to target NF-κB in cancer prevention and therapy.
Insights
The nuclear factor kappa B (NF-κB) pathway is implicated in cancer development and progression. Targeting NF-κB shows promise for cancer prevention and treatment strategies.
Area of Science:
- Oncology
- Molecular Biology
- Immunology
Background:
- The nuclear factor kappa B (NF-κB) signaling pathway, including RelA and c-Rel, has been linked to tumorigenesis.
- Oncogenic mutations in NF-κB proteins and persistent activation in solid tumors suggest its role in cancer.
- The IκB-kinase complex is an upstream activator of the NF-κB pathway.
Purpose of the Study:
- To review molecular evidence on the functions of NF-κB in various tumor stages.
- To support the rationale for targeting NF-κB in cancer prevention and therapy.
Main Methods:
- Utilizing conditional knockout mice for tissue-specific targeting of NF-κB pathway components.
- Genetically testing cell-autonomous and non-autonomous functions of NF-κB.
- Reviewing molecular evidence from various studies.
Main Results:
- NF-κB plays diverse roles throughout different stages of cancer development.
- Conditional knockout models enable functional studies of NF-κB in cancer.
- Evidence supports NF-κB's involvement in both inflammation-associated and sporadic cancers.
Conclusions:
- The NF-κB pathway is a critical regulator in tumorigenesis.
- Targeting the NF-κB pathway presents a viable strategy for cancer prevention and therapy.
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