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烟草严重威胁人类身体健康,这一点已为人们广泛认识。最新的研究成果表明:烟草不仅促进癌细胞的生长,还会帮助刚形成的癌细胞逃脱人体免疫系统的侦查、攻击,使癌细胞加速在人体内扩散开来。这项成果是由纽约大学的简·A·麦克卡勤和同事共同发表的。该项成果显示,细胞表面的一些物质会向免疫系统发出信息,显示该细胞是不是对人体有害,而免疫系统可以根据这些信息来决定是否破坏它。而受烟草影响的细胞此种预警物质明显减
Tobacco has seriously threatened human health. This has been widely recognized. The latest research results show that tobacco not only promotes the growth of cancer cells, but also helps newly formed cancer cells escape the detection and attack of the human immune system and accelerate the spread of cancer cells in the human body. This achievement was jointly published by Jane A. McCargin of New York University and colleagues. The results show that some substances on the cell surface will send information to the immune system, indicating whether the cell is harmful to the human body, and the immune system can use this information to decide whether to destroy it. The early warning substances in tobacco-affected cells are significantly reduced