Department of Pediatrics and McDermott Center for Human Growth and Development, University of Texas-Southwestern Medical Center, Dallas, Texas 75390-9063, USA.
J Nucl Med. 2011 Jul;52(7):1005-8. doi: 10.2967/jnumed.110.084244. Epub 2011 Jun 16.
Metabolic imaging has great clinical potential in cancer because perturbations of metabolism are common hallmarks of malignant cellular transformation. Novel imaging strategies focused on glutamine could provide a valuable complement to (18)F-FDG PET, because glutamine complements glucose in the metabolic platforms that support tumor growth at the cellular level. Furthermore, recent work has demonstrated that distinct aspects of glutamine metabolism are under the control of oncogenes and tumor suppressors. It is plausible that imaging glutamine metabolism could predict both the presence of specific transforming mutations in the tumor and the sensitivity to therapeutic agents designed to target glutamine use. Here, we review the essential aspects of glutamine metabolism in cancer cells and discuss opportunities for imaging in cancer patients.
代谢成像在癌症中有很大的临床应用潜力,因为代谢的改变是恶性细胞转化的常见特征。新的以谷氨酰胺为靶点的成像策略可能为 (18)F-FDG PET 提供有价值的补充,因为谷氨酰胺在代谢平台上与葡萄糖互补,支持肿瘤在细胞水平上的生长。此外,最近的研究表明,谷氨酰胺代谢的不同方面受到癌基因和抑癌基因的控制。因此,通过成像来检测肿瘤中特定的转化突变以及对靶向谷氨酰胺利用的治疗药物的敏感性是合理的。本文综述了癌细胞中谷氨酰胺代谢的基本方面,并讨论了在癌症患者中进行成像的机会。