Phosphorus-31 NMR spectroscopy of cultured human retinal pigmented epithelial cells.

Phosphorus-31 NMR spectroscopy of cultured human retinal pigmented epithelial cells.
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培养的人视网膜色素上皮细胞的磷 31 NMR 光谱。

DOI:
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发表时间:
1987
影响因子:
4.4
通讯作者:
D. Newsome
D. Newsome
中科院分区:
医学2区
文献类型:
--
作者:
M. Miceli;L. Kan;D. Newsome

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培养的人视网膜色素上皮细胞进行了研究,使用磷-31核磁共振光谱(P-31 NMR)。使用滚瓶培养分离并扩增来自正常人供体的视网膜色素上皮细胞。通过将细胞浇铸在琼脂糖线中并用培养基灌注线,在121 MHz下获得完整活细胞的P-31 NMR谱。细胞在37 ℃下在NMR磁体中保持存活至少24小时,如在实验结束时通过磷光谱的稳定性和台盼蓝染料排除所确定的。完整细胞光谱显示来自磷酸乙醇胺、磷酸胆碱、无机磷酸盐、磷酸二酯、磷酸肌酸、ATP、NAD+和UDP-N-乙酰葡糖胺的共振,其中磷酸乙醇胺、磷酸胆碱和ATP是存在的主要代谢物。通过制备完整细胞的高氯酸(PCA)提取物并在高分辨率条件下运行来分配共振。PCA提取物光谱还检测到磷酸糖、ADP和UTP,后者约占核苷酸库的20%。这些研究为用NMR光谱方法研究正常和患病的人RPE细胞提供了基础。
Cultured human retinal pigmented epithelial cells were studied using phosphorus-31 nuclear magnetic resonance spectroscopy (P-31 NMR). Retinal pigmented epithelial cells from normal human donors were isolated and expanded using roller-bottle culture. The P-31 NMR spectrum of the intact living cells was obtained at 121 MHz by casting the cells in agarose threads and perfusing the threads with culture medium. The cells remained viable at 37 degrees C in the NMR magnet for at least 24 hr, as determined by the stability of the phosphorus spectrum and by trypan blue dye exclusion at the end of the experiments. The intact cell spectrum showed resonances from phosphorylethanolamine, phosphorylcholine, inorganic phosphate, phosphodiesters, phosphocreatine, ATP, NAD+, and UDP-N-acetylglucosamine, with phosphorylethanolamine, phosphorylcholine, and ATP being the major metabolites present. The resonances were assigned by making a perchloric acid (PCA) extract of the intact cells and running under high-resolution conditions. The PCA extract spectrum also detected sugar phosphates, ADP and UTP, with the latter being approximately 20% of the nucleotide pool. These studies provide the basis for the study of normal and diseased human RPE cells by NMR spectroscopic methods.
完整眼睛的表面线圈磷-31 核磁共振研究。
DOI: 10.1016/0014-4835(85)90148-4
发表时间: 1985
影响因子: 3.4
作者:
Schleich,T;Matson,GB;Willis,JA;Acosta,G;Serdahl,C;Campbell,P;Garwood,M
通讯作者: Garwood,M
通过 NMR 监测细胞代谢。
DOI: 10.1016/0304-4173(81)90005-7
发表时间: 1981
期刊: Biochimica et biophysica acta
影响因子: --
作者:
Roberts,JK;Jardetzky,O
通讯作者: Jardetzky,O
布鲁赫膜蛋白聚糖的合成改变与显性色素性视网膜炎相关。
DOI: 10.3109/02713688509000846
发表时间: 1985
影响因子: 2
作者:
Hewitt,AT;Newsome,DA
通讯作者: Newsome,DA
DOI: 10.1056/nejm198506063122307
发表时间: 1985
期刊: The New England journal of medicine
影响因子: --
作者:
Maris,JM;Evans,AE;McLaughlin,AC;D'Angio,GJ;Bolinger,L;Manos,H;Chance,B
通讯作者: Chance,B
DOI: 10.1007/bf02764295
发表时间: 1990
期刊: Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie
影响因子: --
作者:
Hayashi,K;Cheng,HM;Iwasaki,M;Xiong,H;Kenyon,KR
通讯作者: Kenyon,KR