第二军医大郭葆玉教授等人前不久发现了一种对骨肿瘤有抑制作用的细胞因子。美国有关科研机构日前对这一因子进行检测分析，证实了这一重大发现。经文献检索，这一发现尚属世界首例。 　　据介绍，这一被称为单核细胞趋化蛋白－ 1的细胞因子，是郭葆玉等人经过两年多研究发现的 The second military doctor, Professor Guo Guoyu, recently discovered a cytokine that has an inhibitory effect on bone tumors. The United States related scientific research institutions recently conducted a test and analysis of this factor, confirming this major discovery. After a literature search, this discovery is still the first in the world. According to reports, this cytokine, called monocyte chemoattractant protein-1, was discovered by Guo Yuyu and others after more than two years of research.