Methods:The mitogen activity of mutants was firstly detected.

方法：首先检测突变体的促T淋巴细胞增殖活性；

To investigate the expression and activation of mitogen-activated protein kinases in non-small cell lung cancer and its clinical significance.

目的：探讨丝裂原活化蛋白激酶在非小细胞肺癌中的表达及其临床意义。

So we can say that IGF receptor is a potential mitogen. IGFBP is a transportation protein and the high concentration in blood can depress the biological action of IGF.

胰岛素样生长因子结合蛋白（IGFBP）主要是起运输作用，通过与IGF相结合而产生生物效应，血浆高浓度的IGFBP可以降低IGF的生物作用。

KGF is not only the mitogen of epithelial cells, but also the cytokine, which can enhance regeneration and sodium-water transport of alveolar epithelial cells.

KGF不仅是上皮细胞的丝裂原也是促进肺泡上皮细胞的钠水转运和再生的因子。