Yang Xiaotao, Han Dingli, Philip N.Baker, et al. Optimization of trophoblast cell model in preeclampsia induced by hypoxia in vitro and metabonomics analysis. [J]. Journal of Chongqing Medical University 42(8):1045-1052(2017)
Yang Xiaotao, Han Dingli, Philip N.Baker, et al. Optimization of trophoblast cell model in preeclampsia induced by hypoxia in vitro and metabonomics analysis. [J]. Journal of Chongqing Medical University 42(8):1045-1052(2017) DOI: 10.13406/j.cnki.cyxb.001343.
Optimization of trophoblast cell model in preeclampsia induced by hypoxia in vitro and metabonomics analysis
Objective:To investigate the optimal in vitro hypoxia cell mode for preeclampsia study. Methods:Western blot was used to determine the phosphorylation of AMPK after HTR8/SVneo trophoblast cell being treated with 1% O2(hypoxia condition) or21% O2(normoxia condition)for various duration. GC-MS was used for assessing metabolome of HTR8/SVneo trophoblast cell after being incubated in normoxia or hypoxia environment
to validate the synchronous alteration in AMPK phosphorylation and metabolome. Results:The activity of AMPK was higher in hypoxia group(1.615 ±0.111) than in normoxia group(1.000 ±0.107) and hypoxia/reoxygenation group(1.277 ±0.113). The in-creased metabonomics of the HTR8/SVneo trophoblast cell induced by hypoxia were 4-methyl-2-oxopentanoic acid(log22.597 =1.377)
cis-4-hydroxyproline(log20.500 =-1.000) were decreased in hypoxia group. The metabolic pathway analysis shown the nucleotide metabolism [log2(1.811、1.149)=0.857
0.201]
the energy metabolism[log2(1.510、1.173、1.149)=0.595
0.230
0.201]
the metabolism of cofactors and vitamins [log2(1.045、1.052、1.125)=0.064
0.073
0.170]
the amino acid metabolism[log2(1.245、1.020、1.027、1.123、1.127、1.076)=0.316
0.028
0.039
0.167
0.173
0.106]
the signal transduction(log21.046 =0.065)
the translation(log21.026=0.037)were activated in hypoxia group
but the carbohydrate metabolism[log2(0.857、0.857、0.799)=-0.222
-0.222
-0.323]
the lipid metabolism[log2(0.944、0.912、0.826)=-0.083
-0.133
-0.276]
the endocrine metabolism[log2(0.885、0.799、0.799)=-0.176
-0.323
-0.323] and the biosynthesis of other secondary metabolites[log2(0.947、0.871、0.743)=-0.079
-0.199
-0.428] were inhibited. Conclusion:Hypoxia alone treated HTR8/SVneo cell model is more suitable for studying the physiopathologic mechanism of preeclampsia in vitro.
关键词
子痫前期HTR8/SVneo滋养细胞缺氧腺苷酸活化蛋白激酶气相质谱技术
Keywords
preeclampsiaHTR8/SVneo trophoblast cellhypoxiaAMP-activated protein kinasegas chromatography mass spectrum