體外缺氧誘導(dǎo)子癇前期滋養(yǎng)細(xì)胞模型優(yōu)化及代謝組學(xué)鑒定
[Abstract]:Objective: to study the optimization of hypoxia-induced preeclampsia model with different treatments of trophoblastic cells in vitro. Methods: HTR8/SVneo trophoblast cells were cultured in 1%O2 (hypoxic environment) and 21%O2 (normoxic environment) incubators for 1 h (H _ 1N _ 1) or 2 h (H _ 2N _ 2), respectively. One hour after hypoxia (H1R1), 2 hours after hypoxia (H2R2), 1 hour after H1R1 (H1R1H1), 2 hours after H2R2 (H2R2H2), H1R12 (H1R1H1R1) and H2R22 (H2R2H2R2). Reoxygenation 6 h (H2R6) after 2 h hypoxia, 24 h continuous hypoxia, 4 h normoxic (N4), 8 h (N8) and 24 h (Normoxia),) Then Western blot was used to detect the phosphorylation of adenylate activated protein kinase (AMP-activated protein kinase,AMPK) in order to verify the effect of each group on the induction of trophoblastic energy stress. HTR8/SVneo trophoblastic cells were cultured in normoxic or anoxic environment for 24 hours, and then were analyzed by GC-MS (gas chromatography mass spectrum,GS-MS). To verify whether the up-regulation of AMPK phosphorylation is consistent with the changes of trophoblast metabolism. Results: the activity of AMPK in hypoxia group (1.615 鹵0.111) was significantly higher than that in normoxic group (1.000 鹵0.107) and hypoxia reoxygenation group (1.277 鹵0.113). The metabolites increased significantly during hypoxia were 4-methyl-2-pentanoic acid (log22.597 1.377), hydrated glyoxylic acid (log22.483 1.312), histidine (log21.188 0.248), phenylalanine (log21.262 0.335). Valine (log21.518 = 0.602), L-leucine (log21.519 = 0.603), acetylserine (log21.691 = 0.758), serine (log21.783 = 0.834), cysteine (log21.851 = 0.889), valine (log21.518 = 0.602), L-leucine (log21.519), acetylserine (log21.691), serine (log21.783), cysteine (log21.851), Methionine (log22.072 1.051), ornithine (log22.251 1.170), etc. However, log20.127 was-2.983, log20.334 was-1.583, log20.600 was-0.738, conjugated linoleic acid was-0.557, and palmitoic acid was-2.983, log20.334 was-1.583, log20.600 was-0.738, conjugated linoleic acid was-0.557, and palmitoic acid was-2.983, log20.334 was-1.583, log20.600 was-0.738, conjugated linoleic acid was-0.557. Cis-octadecenoic acid (log20.711 = -0.492), 9-heptadecenoic acid (log20.782 = -0.355), 22 carbohexaenoic acid (log20.829 = -0.271), eicosapentaenoic acid (log20.841 = -0.250), Erucic acid (log20.844 =-0.244), 22 carbapentaenoic acid (log20.898 = -0.156), citric acid (log20.279 = -1.842), malic acid (log20.208 = -2.264), succinic acid (log20.254 = -1.980), Cis aconitic acid (log20.260 =-1.946), 尾 -citrate-L-glutamic acid (log20.093), 尾 -alanine (log20.139 = -2.851), cystathione (log20.267 = -1.904), 尾 -citrate-L-glutamic acid (log20.093), 尾 -alanine (-2.851), cystathion (-1.904). Cis-4-hydroxyproline (log20.500 =-1.000) decreased significantly during hypoxia. Metabolic pathway analysis showed that nucleotide metabolism [log2 (1.8111.149) was 0.857U 0.201] and energy metabolism (log2 (1.510U 1.173U 1.149) was 0.5950.2300.201, respectively) in trophoblastic cells under hypoxia. Vitamin metabolism [log2 (1.045 ~ 1.052 ~ 1.125) = 0.064 ~ 0.073 ~ 0.170] and amino acid metabolism [log2 (1.245 ~ 1.020 ~ 1.027 ~ 1.127 ~ 1.127 ~ 1.076) = 0.316 ~ 0.028 ~ 0.039 ~ 0.1670.1730.106], respectively. Signal transduction (log21.046 = 0.065) and protein translation (log21.026 = 0.037) were activated, while carbohydrate [log2 (0.857N) 0.857U 0.799) was -0.222kg-0.222kg-0.323]. Fatty acids [log2 (0.944 ~ 0.912 ~ (0.826) were -0.083 ~ (-0.133) ~ 0.276] and endocrine metabolism [log2 _ (0.885) ~ (0.799) ~ (0.799) were -0.176 ~ (-0.323), respectively. The metabolic pathways such as-0.323 and other secondary metabolites biosynthesis [log2 (0. 947 0. 871%) were-0. 079-0. 199-0. 428] were significantly inhibited. Conclusion: hypoxia model alone is more suitable for in vitro study of preeclampsia pathophysiology.
【作者單位】: 重慶醫(yī)科大學(xué)附屬第二醫(yī)院婦產(chǎn)科重慶醫(yī)科大學(xué)"中國(guó)-加拿大-新西蘭"聯(lián)合母胎醫(yī)學(xué)實(shí)驗(yàn)室;
【基金】:國(guó)家自然科學(xué)基金面上資助項(xiàng)目(編號(hào):81671488) 重慶市教育委員會(huì)資助項(xiàng)目(編號(hào):KJ1500223) 重慶醫(yī)科大學(xué)資助項(xiàng)目(編號(hào):CYYQ201507)
【分類號(hào)】:R714.244
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