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癌字从病从癌,癌即岩,意思是坚硬顽固。英文 cancer 有两个意义,即癌和黄道带的巨蟹星座。不论 cancer 或 carcinoma 均从希腊文 Karkinos 引来,即蟹的意思。因癌细胞象蟹那样,伸出很多的“脚”,四出横行,浸润其他组织。癌细胞生长旺盛,既是无限制性的,又不受机体控制。正常细胞生长中有接触抑制现象,即细胞汇合时就停止分裂。但癌细胞却丧失了接触抑制特性,它的运动性、增殖性都继续存在。癌细胞有三方面特征:(1)失却细胞繁殖的控制机能,(2)不同程度的不分化、不成熟,(3)失却控制细胞移动的机能,因此癌细胞能跟着血液、淋巴液转移到全
The word cancer from disease from cancer, cancer is rock, meaning hard stubborn. English cancer has two meanings: Cancer and Zodiac Cancer. Both cancer and carcinoma are derived from the Greek Karkinos, meaning crab. Because cancer cells, like crabs, stretch out a lot of “feets”, they run rampant and infiltrate other tissues. Cancer cells thrive, neither restrictive nor controlled by the body. There is a contact inhibition phenomenon in normal cell growth, ie, the cells stop dividing when they are confluent. However, cancer cells lose their contact inhibition properties, and their motility and proliferative properties continue to exist. Cancer cells have three characteristics: (1) loss of control of cell reproduction, (2) different levels of indifferent, immature, (3) loss of control of cell movement, so cancer cells can follow blood and lymph to metastasis.