کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2540681 | 1122604 | 2014 | 6 صفحه PDF | دانلود رایگان |
• Prostate cancer cell-derived factors induce a pro-tumoral phenotype in macrophages.
• ATRA inhibits the pro-tumoral macrophage phenotype by blocking NFkB activation.
• ATRA does not diminish the phosphorylation of ERK in tumor-associated macrophages.
Tumor-associated macrophages (TAMs) are a prominent cell type of the tumor stroma and stimulate malignant cell growth, survival and metastasis. The present manuscript demonstrates that prostate cancer cell-derived factors induce a pro-tumoral TAM-like phenotype characterized by increased proliferation and increased expression of pro-angiogenic, immunosuppressive and pro-metastatic factors. These effects were abrogated by all trans-retinoic acid (ATRA), a clinically available molecule with known immune-modulating properties. Furthermore, ATRA inhibited the cancer cell-stimulated proliferation of the pro-tumoral macrophages and restored their cytotoxic capacity towards prostate cancer cells. These findings suggest the use of ATRA as an immunomodulating agent to block the activity of prostate cancer TAMs.
Journal: International Immunopharmacology - Volume 23, Issue 1, November 2014, Pages 8–13