http://en.wikipedia.org/wiki/Imatinib tyrosine-kinase inhibitor is a tyrosine-kinase inhibitor used in the treatment of multiple cancers, most notably Philadelphia chromosome-positive (Ph+) chronic myelogenous leukemia (CML).[1] Like all tyrosine-kinase inhibitors, imatinib works by preventing a tyrosine kinase enzyme, in this case BCR-Abl, from phosphorylating subsequent proteins and initiating the signaling cascade necessary for cancer development, thus preventing the growth of cancer cells and leading to their death by apoptosis. 其实有些中药单一成分就有可能是tyrosine-kinase inhibitor 我认为如果有单一成分提取的药物(没有了重金属污染的影响),应该可以考虑.