摘要
长期以来,由癌细胞周围敌对的肿瘤微环境驱动的代谢变化以及这些变化对肿瘤发生和转移潜能的影响已为人所知。通常感兴趣的是葡萄糖及其在癌细胞中的利用率变化,主要表现为Warburg效应。然而,细胞内和细胞外的氨基酸也代表了肿瘤微环境的重要方面,这可以对癌细胞的代谢和肿瘤的整体发展产生重大影响。即,氨基酸谷氨酰胺,肌氨酸,天冬氨酸,蛋氨酸和半胱氨酸的代谢改变先前已与肿瘤的进展和癌症的侵袭性相关。这篇综述的目的是在我们对氨基酸作为肿瘤微环境的一部分的作用的认识中查明当前的差距,并显示各种氨基酸对癌细胞代谢和转移潜力的影响。这篇综述显示了在某些癌症组织中传统接受的Warburg效应模型的局限性和例外,重点是前列腺癌,因为Warburg效应的传统定义并不总是适用于有氧糖酵解的新陈代谢转换。处于健康和转化状态的前列腺组织在许多新陈代谢方面(包括葡萄糖和氨基酸的新陈代谢)与其他组织的新陈代谢显着不同。因此,来自不同组织的发现并不总是可以互换的,并且在实验过程中必须通过氨基酸补充或消耗来改变肿瘤组织的环境来加以考虑,这有可能成为一种新的治疗方法。
关键词: 癌症新陈代谢,肿瘤微环境,氨基酸,Warburg效应,乳酸,与癌症相关的成纤维细胞。
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