Synthesis of 1-acyl-2-[3H]acetyl-SN-glycero-3-phosphocholine, a structural analog of platelet activating factor, by vascular endothelial cells.

Synthesis of 1-acyl-2-[3H]acetyl-SN-glycero-3-phosphocholine, a structural analog of platelet activating factor, by vascular endothelial cells.
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血管内皮细胞合成 1-酰基-2-[3H]乙酰基-SN-甘油-3-磷酸胆碱(血小板激活因子的结构类似物)。

DOI:
10.1016/0006-291x(91)90465-j
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发表时间:
1991
影响因子:
3.1
通讯作者:
Eskin,SG
Eskin,SG
中科院分区:
生物学4区
文献类型:
--
作者:
Mueller,HW;Nollert,MU;Eskin,SG

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人脐静脉内皮细胞(HUVECS)在[3 H]乙酸存在下用凝血酶激发,以刺激放射性标记的血小板活化因子(PAF,1-O-烷基-2-[3 H]乙酰基-sn-甘油-3-磷酸胆碱,1-O-烷基-2-[3 H]乙酰基-GPC)的产生。通过薄层层析分离3 H-产物,并通过磷脂酶C消化和随后在sn-3位的乙酰化制备1-radyl-2 [3 H],3-二乙酰基甘油。当通过区带薄层色谱法分析1-酰基-2,3-二乙酰基甘油时,96-97%的放射性标记衍生物与1-酰基-2,3-二乙酰基甘油标准品一起迁移。仅观察到少量(3-4%)的1-烷基-2-[3 H],3-二乙酰基甘油,这表明凝血酶刺激的HUVEC合成的主要乙酰化产物是1-酰基-2-[3 H]乙酰基-GPC。1-酰基-2-[3 H]-乙酰基-GPC的相对丰度不受凝血酶剂量、孵育时间或细胞传代的显著影响,并且在用离子载体A23187激发的HUVECS中也观察到。此外,从离子载体A23187或缓激肽刺激的牛主动脉内皮细胞的乙酰化产物含有90%的1-酰基-2-[3 H]乙酰基-GPC,表明1-酰基PAF类似物的合成不是HUVECS所独有的。这些发现表明PAF是HUVECS和牛主动脉内皮细胞的次要合成组分。鉴于血管内皮细胞在血栓形成的调节中起着不可或缺的作用,这些发现还表明1-酰基-2-乙酰基-GPC的产生可能具有生物学重要性。
Human umbilical vein endothelial cells (HUVECS) were challenged with thrombin in the presence of [3 H] acetate to stimulate the production of radiolabeled platelet activating factor (PAF, 1-O-alkyl-2-[3 H] acetyl-sn-glycero-3-phosphocholine, 1-O-alkyl-2-[3 H] acetyl-GPC). The 3 H-product was isolated by thin-layer chromatography, and 1-radyl-2 [3 H], 3-diacetylglycerols were prepared by phospholipase C digestion and subsequent acetylation at the sn-3 position. When the 1-radyl-2 [3 H], 3-diacetylglycerols were analyzed by zonal thin-layer chromatography, 96–97% of the radiolabeled derivative migrated with 1-acyl-2, 3-diacetylglycerol standard. Only minor amounts (3–4%) of 1-alkyl-2 [3 H], 3-diacetylglycerol were observed, demonstrating that the predominant acetylated product synthesized by thrombin-stimulated HUVECS was 1-acyl-2-[3 H] acetyl-GPC. This relative abundance of 1-acyl-2-[3 H]-acetyl-GPC was not significantly affected by thrombin dose, incubation time, or cell passage, and was also observed in HUVECS challenged with ionophore A23187. In addition, the acetylated product from ionophore A23187-or bradykinin-stimulated bovine aortic endothelial cells contained 90% 1-acyl-2-[3 H] acetyl-GPC, suggesting that the synthesis of the 1-acyl PAF analog is not unique to HUVECS. These findings demonstrate that PAF is a minor synthetic component of HUVECS and bovine aortic endothelial cells. In light of the integral role which the vascular endothelial cell plays in the regulation of thrombosis, these findings also suggest that the production of 1-acyl-2-acetyl-GPC may be biologically important.
改进的高效液相色谱方法用于从其他磷脂中分离血小板激活因子。
DOI: 10.1016/s0378-4347(00)80963-9
发表时间: 1983
期刊: Journal of chromatography
影响因子: --
作者:
Blank,ML;Snyder,F
通讯作者: Snyder,F
DOI: 10.1161/01.cir.72.4.718
发表时间: 1985
期刊: Circulation
影响因子: 37.8
作者:
G. Zimmerman;T. McIntyre;S. Prescott
通讯作者: S. Prescott
受刺激血小板生物合成标记放射性醋酸盐血小板激活因子
DOI: 10.1038/289312a0
发表时间: 1981
期刊: Nature
影响因子: 64.8
作者:
H. Chap;G. Mauco;M. Simon;J. Benveniste;L. Douste‐Blazy
通讯作者: L. Douste‐Blazy
人脐动脉和静脉内皮细胞中的磷脂分子种类。
DOI: 10.1016/s0021-9258(18)32394-9
发表时间: 1990
影响因子: 6.5
作者:
Hitoshi Takamura;Hisanori Kasai;Hitoshi Arita;Makato Kite
通讯作者: Makato Kite
通过人肺肥大细胞的富集制剂合成 1-酰基-2-乙酰基-sn-甘油-3-磷酸胆碱。
DOI: --
发表时间: 1990
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Triggiani,M;Hubbard,WC;Chilton,FH
通讯作者: Chilton,FH