Related Experiment Video
Updated: Jun 16, 2026

In Vitro Assay to Study Tumor-macrophage Interaction
Published on: August 1, 2019
Nuclear factor-kappaB and tumor-associated macrophages
Alessandra Mancino1, Toby Lawrence
1Inflammation Biology Group, Centre d'Immunologie Marseille-Luminy, Marseille, France.
Abstract:
Tumor-associated macrophages (TAM) have been linked with the progression of cancer by favoring tumor angiogenesis, growth, and metastasis. The precise mechanisms that maintain the protumor phenotype of TAM are poorly understood, but recent research has highlighted a number of signaling pathways that are important in TAM phenotype and function. Nuclear factor-kappaB (NF-kappaB) is considered the master regulator of inflammatory and immune responses. Recently several genetic studies have indicated NF-kappaB is an important pathway in TAM for the integration of signals from the tumor microenvironment that promote carcinogenesis. This review will focus on the role of NF-kappaB in TAM and the potential of targeting this pathway as a novel therapeutic strategy against cancer.
Insights
Tumor-associated macrophages (TAM) promote cancer progression. Targeting the Nuclear factor-kappaB (NF-kappaB) pathway in TAM offers a promising new strategy for cancer therapy.
Area of Science:
- Immunology
- Oncology
- Molecular Biology
Background:
- Tumor-associated macrophages (TAM) are key players in cancer progression, promoting angiogenesis, growth, and metastasis.
- The exact mechanisms sustaining the protumorigenic phenotype of TAM are not fully elucidated.
- Signaling pathways regulating TAM phenotype and function are crucial for understanding cancer development.
Purpose of the Study:
- To review the critical role of Nuclear factor-kappaB (NF-kappaB) in regulating TAM phenotype and function.
- To explore the potential of targeting the NF-kappaB pathway as a novel cancer therapeutic strategy.
Main Methods:
- Literature review focusing on genetic studies and signaling pathways.
- Analysis of the role of NF-kappaB in integrating tumor microenvironment signals.
- Examination of NF-kappaB's function in TAM-mediated carcinogenesis.
Main Results:
- NF-kappaB is identified as a master regulator of inflammatory and immune responses.
- Genetic studies highlight NF-kappaB's importance in TAM for processing pro-carcinogenic signals.
- The NF-kappaB pathway is central to TAM's contribution to the tumor microenvironment.
Conclusions:
- NF-kappaB plays a pivotal role in maintaining the protumorigenic functions of TAM.
- Targeting the NF-kappaB pathway in TAM represents a potential novel therapeutic avenue for cancer treatment.
Related Concept Videos
NF-κB-dependent Signaling Pathway
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
Cells of the Innate Immune Response
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
Immune Surveillance by NK Cells and Phagocytes
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
The Tumor Microenvironment
The Tumor Microenvironment
NF-kB-dependent Signaling Pathway
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
