Tumoral Immune Cell Exploitation in Colorectal Cancer Metastases Can Be Targeted Effectively by Anti-CCR5 Therapy in Cancer Patients.
Cancer Cell
; 29(4): 587-601, 2016 Apr 11.
Article
em En
| MEDLINE
| ID: mdl-27070705
The immune response influences the clinical course of colorectal cancer (CRC). Analyzing the invasive margin of human CRC liver metastases, we identified a mechanism of immune cell exploitation by tumor cells. While two distinct subsets of myeloid cells induce an influx of T cells into the invasive margin via CXCL9/CXCL10, CCL5 is produced by these T cells and stimulates pro-tumoral effects via CCR5. CCR5 blockade in patient-derived functional in vitro organotypic culture models showed a macrophage repolarization with anti-tumoral effects. These anti-tumoral effects were then confirmed in a phase I trial with a CCR5 antagonist in patients with liver metastases of advanced refractory CRC. Mitigation of tumor-promoting inflammation within the tumor tissue and objective tumor responses in CRC were observed.
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Base de dados:
MEDLINE
Assunto principal:
Neoplasias Colorretais
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Adenocarcinoma
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Quimiocina CCL5
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Receptores CCR5
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Terapia de Alvo Molecular
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Neoplasias Hepáticas
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Proteínas de Neoplasias
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article