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Chemokine-based pathogenetic mechanisms in cancer
Ilaria Conti1, Christine Dube, Barrett J Rollins
1Department of Medical Oncology, Dana-Farber Cancer Institute, 44 Binney Street, Boston, MA 02116, USA.
Novartis Foundation Symposium
|March 19, 2004
Summary
Cancers hijack the chemokine system to promote tumor growth and metastasis by attracting supportive host cells and utilizing leukocyte trafficking pathways. Targeting chemokines offers a potential therapeutic strategy for cancer treatment.
Area of Science:
- Immunology
- Oncology
- Molecular Biology
Background:
- The chemokine system regulates leukocyte movement during immune responses.
- Cancer cells exploit chemokine ligands and receptors for their own benefit.
- Tumor-derived chemokines can influence the tumor microenvironment.
Purpose of the Study:
- To investigate how cancers utilize the chemokine system.
- To explore the role of chemokines in tumor growth and metastasis.
- To assess the therapeutic potential of targeting chemokine pathways in cancer.
Main Methods:
- Analysis of clinical and laboratory evidence.
- Examination of chemokine ligand and receptor expression in cancer cells.
- Investigation of host cell recruitment by tumor-secreted chemokines.
- Assessment of chemokine receptor involvement in tumor invasion.
Main Results:
- Cancer cells secrete chemokines to attract host cells that provide growth and angiogenic factors.
- Tumor cells express chemokine receptors, enabling invasion via leukocyte trafficking systems.
- Engineered overexpression of some tumor chemokines can stimulate anti-tumor immunity, but this is not the primary role of endogenous tumor chemokines.
Conclusions:
- Cancer cells co-opt the chemokine system to enhance growth, angiogenesis, and metastasis.
- Targeting chemokine ligands or receptors represents a promising therapeutic avenue for cancer treatment.
- Understanding chemokine-mediated interactions is crucial for developing novel anti-cancer strategies.