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L7811鼠腹水肿瘤细胞31P核磁共振的研究
THE STUDIES OF CELL FROM L7811 LEUKEMIA MOUSE BY 31P-NMR
【摘要】 用31P核磁共振技术(31P-NMR)研究了L7811鼠腹水肿瘤细胞和615系鼠胸腺细胞(正常对照细胞)。结果发现在肿瘤晚期阶段,L7811腹水肿瘤细胞的含磷化合物未进入完全不活跃状态。此外,腹水肿瘤细胞的磷脂组成与含量亦有明显改变。因此,31P-NMR谱可做为观察肿瘤细胞内能量生成和某些磷脂合成宏观动态过程的一项参考指标。
【Abstract】 Using 31P-NMR to study the high energy phosphates of mouse L7811 ascites cells with thymic ceils from 615 line mouse as control. The results showed there was clear differences between them.Even in the late stage of growth, L7811 ascites cells was not completely in an inactive state. For example, the ratio of phosphocreatine (PCr) and α-, β-, γ- adenosine triphosphate (α-, β-, γ-ATP) to phosphate (Pi) was greatly decreased but not completely inactive. The ratio of sugar phosphate (Sp) to phosphocholine (Pcho) plus phosphoethanolamine (PEtn) increased, while glycero (3) phosphocholine (GroPCho) plus glycero(3) phosphoelhano-lamine (GroPEtn) decreased.Preliminary studies showed that 31P-NMR spectra are sensitive monitor to the progressive changes of the high energy phosphate metabolism of the L7811 ascites growth.
【Key words】 31P-nuclear magnetic resonance; ascites cell; thymic cell; phospholipid; high-energy phosphate;
- 【文献出处】 生物化学与生物物理进展 ,Progress In Biochemistry and Biophysics , 编辑部邮箱 ,1990年03期
- 【被引频次】1
- 【下载频次】15