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探索新的肿瘤化疗靶点，并在此基础上研制新型抗肿瘤药物，将可能为肿瘤治疗开辟新途径。核昔酸是构成核酸大分子的基本单位。核着酸的生物合成有两条途径，一是“从头合成途径”，二是“补救途径”，后者是利用细胞外核背经磷酸化合成核青酸。目前临床使用的抗肿痛药物（如氨
Exploring new cancer chemotherapy targets and developing new anti-cancer drugs based on this will open up new avenues for cancer treatment. Ribonucleotide is the basic unit of nucleic acid macromolecules. There are two ways to biosynthesize the acid: one is the “de novo synthetic pathway” and the other is the “remedial pathway”. The latter uses the extracellular nuclear to phosphorylate nuclear synthesis. Currently used anti-tumor drugs for clinical use (such as ammonia