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The origin and function of tumor-associated macrophages
A Mantovani1, B Bottazzi, F Colotta
1Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy.
Immunology Today
|July 1, 1992
Summary
Tumor-associated macrophages (TAM) exhibit a dual role in cancer, supporting tumor growth through growth factors while also possessing the potential to inhibit it. Understanding this balance is key for developing new cancer therapies.
Area of Science:
- Immunology
- Oncology
- Cancer Biology
Background:
- Tumor-associated macrophages (TAM) are key immune cells within the tumor microenvironment.
- TAMs display a complex and often contradictory relationship with neoplastic cells.
Purpose of the Study:
- To elucidate the dualistic role of TAMs in cancer.
- To explore the potential for therapeutic manipulation of TAMs.
Main Methods:
- Review of existing literature on TAM-tumor cell interactions.
- Analysis of reciprocal growth factor production.
- Examination of TAM activation states.
Main Results:
- TAMs can promote tumor progression via symbiotic growth factor exchange.
- Activated TAMs demonstrate anti-tumorigenic properties, capable of inhibiting growth and mediating cell death.
- A delicate balance exists between pro-tumor and anti-tumor functions of TAMs.
Conclusions:
- The intricate relationship between TAMs and tumor cells presents opportunities for novel therapeutic strategies.
- Targeting TAM functions could offer a promising avenue for cancer treatment.