They identified this tumour-derived macrophage activator as versican, a protein of the extracellular matrix that is frequently upregulated in human tumours.

• 他们鉴定了这个肿瘤衍生的巨噬细胞活化因子为多功能蛋白聚糖，一种人类肿瘤中经常上调表达的细胞外基质的组成蛋白。