肿瘤生物标记物是指伴随肿瘤出现,在量上通常是增加的抗原、酶、激素或代谢产物形式的蛋白质等成分;是由肿瘤细胞产生和分泌、或是被释放的瘤细胞结构的一部分;它不仅存在肿瘤细胞内,而且还经常释放至血清或其他体液中。因其具有生化免疫特性,故可用血清学或免疫学方法检测这些标记物的存在及增加,对于提高亚临床的早期诊断,癌症的疗 A tumor biomarker refers to a component of an antigen, an enzyme, a hormone, or a metabolite in the form of a tumor, which usually increases in quantity; it is a part of a tumor cell structure that is produced and secreted by tumor cells, or released; It is not only present in tumor cells, but it is also often released into serum or other body fluids. Because of its biochemical and immunological properties, serological or immunological methods can be used to detect the presence and increase of these markers, and to improve the subclinical early diagnosis, cancer treatment.