正常组织各具有组织特异物质为其特征,如肌球蛋白、甲状腺球蛋白和大脑脂蛋白等,这种组织特异物质的形成,构成了组织形态分化和功能分化的基础。随着组织形态和功能的改变,特异物质亦将变化,后者代谢的失常亦足以导致组织病理变化的发生。因此,为了深入了解组织的特征,必须阐明特异物质的形成和变化,研究它的性质和作用。肿瘤细胞以其生长失去控制,形态发生简变,功能亦渐丧失,而别于正常细胞。正常细 Normal tissue with tissue-specific substances for each of its characteristics, such as myosin, thyroglobulin and lipoprotein, etc., the formation of tissue-specific substances that form the basis of tissue differentiation and functional differentiation. As tissue morphology and function change, specific substances will also change, the latter metabolic disorder is also sufficient to lead to the occurrence of histopathological changes. Therefore, in order to gain insight into the characteristics of the organization, it is necessary to elucidate the formation and change of specific substances and study their nature and function. Tumor cells lose control of their growth, morphological changes occur, the function also gradually lost, but different from normal cells. Normal fine