细胞因子M -CSF具有生长因子的活性 ,但他们有特定的细胞作用对象 ,有其作用的专一性 (造血系统 )。然而 ,越来越多的研究表明M -CSF也能刺激肿瘤细胞生长 ,其作用超出了原来的细胞对象范围 ,许多实体肿瘤细胞能够分泌M -CSF和 (或 )表达相应受体 ,从而提示M -CSF在肿瘤增殖和 Cytokines M-CSF have growth factor activity, but they have specific cellular effects and have their specificity (hematopoietic system). However, more and more studies show that M-CSF can also stimulate the growth of tumor cells, which is beyond the scope of the original cell object. Many solid tumor cells can secrete M-CSF and / or express corresponding receptors, suggesting that M -CSF proliferates in tumors and