Background Colony-stimulating factor 1 receptor (CSF1R). a classic tyrosine kinase receptor. has been identified as a proto-oncogene in multiple cancers. The CSF1/CSF1R axis is essential for the survival and differentiation of M2-phenotype tumor-associated macrophages (M2 TAMs). https://www.unitedssports.shop/product-category/hockey-protective-helmet-cages/