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Updated: Jan 31, 2026

In Vitro Establishment of a Genetically Engineered Murine Head and Neck Cancer Cell Line using an Adeno-Associated Virus-Cas9 System
Published on: January 9, 2020
Macrophages in the microenvironment of head and neck cancer: potential targets for cancer therapy
Diane Evrard1, Petr Szturz2, Annemilaï Tijeras-Raballand3
1Head and Neck Surgery Department, Hôpital Bichat, Paris, France.
Abstract:
The microenvironment of solid tumors has become a promising target for future therapies modulating immune cells. Patients with advanced head and neck cancer, which still portends a poor outcome, are particularly in need of innovative approaches. In oral squamous cell carcinoma, high density of tumor-associated macrophages (TAMs) appears consistently associated with poor prognosis, whereas data are currently limited for other head and neck sites. Several approaches to block TAMs have been investigated, including TAMs inactivation by means of the colony stimulating factor 1 (CSF-1)/CSF-1 receptor (CSF-1R) inhibitors or strategies to reprogram TAMs from M2 protumoral phenotype toward M1 antitumoral phenotype. This review focuses on both prognostic and therapeutic aspects related to TAMs in head and neck carcinomas.
Insights
Tumor-associated macrophages (TAMs) are key in head and neck cancers. Targeting TAMs offers new therapeutic strategies for these difficult-to-treat malignancies.
Area of Science:
- Oncology
- Immunology
- Cancer Microenvironment
Background:
- The tumor microenvironment, particularly immune cells, is a critical target for cancer therapies.
- Advanced head and neck cancers have poor prognoses, necessitating novel treatment strategies.
- High density of tumor-associated macrophages (TAMs) correlates with poor outcomes in oral squamous cell carcinoma.
Purpose of the Study:
- To review the prognostic and therapeutic roles of TAMs in head and neck carcinomas.
- To explore strategies for modulating TAMs within the tumor microenvironment.
Main Methods:
- Literature review focusing on TAMs in head and neck cancers.
- Analysis of prognostic data linking TAM density to patient outcomes.
- Examination of therapeutic approaches targeting TAMs, including CSF-1/CSF-1R inhibitors and phenotype reprogramming.
Main Results:
- TAMs are consistently associated with poor prognosis in oral squamous cell carcinoma.
- Limited data currently exist for TAMs in other head and neck cancer sites.
- Investigated strategies include TAM inactivation and M2 to M1 phenotype reprogramming.
Conclusions:
- TAMs represent a significant prognostic factor in head and neck carcinomas.
- Targeting TAMs, through inhibition or reprogramming, holds therapeutic potential.
- Further research is needed to fully elucidate TAM roles across all head and neck cancer sites.
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