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学科主题: 妇产科学
题名:
子痫前期对滋养细胞脂肪酸氧化的影响及其与p38MAPK信号通路的相关性
其他题名: Interaction mechanism and influence between fatty acid oxidation in trophoblast cells and p38MAPK signal transduction pathway of severe preeclampsia
作者: 孙晓乐; 杨孜; 王威; 王晓晔; 王伽略; 武淑英
关键词: 先兆子痫 ; 滋养层 ; 3-羟酰CoA脱氢酶类 ; NADPH ; p38丝裂原活化蛋白激酶类 ; 脂肪酸氧化 ; Pre-eclampsia ; Trophoblasts ; 3-hyroxyacyl CoA dehydrogenases ; NADPH ; p38 mitogen-activated protein kinases ; Fatty acid oxidation
刊名: 中华妇产科杂志
发表日期: 2013
DOI: 10.3760/cma.j.issn.0529-567x.2013.11.012
卷: 48, 期:11, 页:853-857
收录类别: 中国科技核心期刊 ; 中文核心期刊 ; CSCD
文章类型: Journal Article
摘要: 目的 探讨重度子痫前期对胎盘滋养细胞线粒体长链脂肪酸氧化酶——长链三羟基酰基辅酶A脱氢酶(LCHAD)表达的影响及其与p38丝裂原活化蛋白激酶(p38 MAPK)信号通路的相关性.方法 体外培养胎盘滋养细胞,分别用早发型重度子痫前期、晚发型重度子痫前期、重度子痫前期伴发HELLP综合征及正常妊娠妇女的血清刺激胎盘滋养细胞(分别命名为早发组、晚发组、HELLP组、正常对照组),每组再分别加入DMEM/F12培养基、还原型烟酰胺腺嘌呤二核苷酸磷酸氧化酶抑制剂(NADPH-Ⅰ)和p38MAPK抑制剂(p38-Ⅰ)处理细胞.采用实时荧光定量PCR技术和蛋白印迹法检测各组滋养细胞LCHAD mRNA和蛋白的表达.结果 (1)LCHAD mRNA的表达:正常对照组+培养基、早发组+培养基、早发组+ NADPH-Ⅰ、早发组+p38-Ⅰ、晚发组+培养基、晚发组+NADPH-Ⅰ、晚发组+p38-Ⅰ、HELLP组+培养基、HELLP组+NADPH-Ⅰ、HELLP组+p38-Ⅰ滋养细胞LCHAD mRNA的相对表达量分别为1.00±0.03、0.14±0.08、0.95±0.20、1.43±1.02、0.37±0.18、1.51 ±0.36、1.60±0.31、0.10 ±0.04、0.49 ±0.10、0.44±0.21.早发组+培养基、晚发组+培养基、HELLP组+培养基与正常对照组+培养基比较,LCHAD mRNA的相对表达量均明显降低,分别比较,差异均有统计学意义(P<0.05);与正常对照组比较,晚发组+ NADPH-Ⅰ、晚发组+p38-Ⅰ LCHADmRNA的相对表达量均有明显升高,差异均有统计学意义(P<0.05),而HELLP组LCHAD mRNA的相对表达量均有明显降低,差异也有统计学意义(P<0.05).(2) LCHAD蛋白的表达:正常对照组+培养基、早发组+培养基、早发组+ NADPH-Ⅰ、早发组+p38-Ⅰ、晚发组+培养基、晚发组+NADPH-Ⅰ、晚发组+ p38-Ⅰ、HELLP组+培养基、HELLP组+NADPH-Ⅰ、HELLP组+p38-Ⅰ组LCHAD蛋白的相对表达量分别为19.4±2.2、10.7±1.1、17.9±3.3、19.1 ±2.9、16.4±2.3、20.3±2.3、20.9 ±4.3、12.4±2.3、17.6±2.6、17.7 ±2.0.与正常对照组比较,早发组+培养基、晚发组+培养基及HELLP组LCHAD蛋白的相对表达量均明显降低,分别比较,差异均有统计学意义(P<0.05),而早发组+NADPH-Ⅰ、早发组+p38-Ⅰ、晚发组+NADPH-Ⅰ、晚发组+p38-Ⅰ LCHAD蛋白的相对表达量无明显变化(P>0.05).早发组、晚发组、HELLP组中,NADPH-Ⅰ亚组、p38-Ⅰ亚组与培养基亚组比较,LCHAD蛋白的相对表达量均有明显升高,差异均有统计学意义(P<0.05).结论 重度子痫前期对胎盘滋养细胞中的脂肪酸氧化代谢有一定的影响,尤其以HELLP综合征最为明显.NADPH-Ⅰ、p38-Ⅰ能缓解早、晚发型重度子痫前期和HELLP综合征中的脂肪酸氧化代谢障碍,p38MAPK信号通路可能参与了该过程. Objective To investigate the effects of expression of mitochondria long-chain fatty acid oxidative enzyme (long-chain 3 hyroxyacyl CoA dehydrogenase,LCHAD) and p38 mitogen activated proteinkinase (p38MAPK) signal transduction pathway in severe preeclampsia.Methods Serum-free trophoblast cells cultured in vitro were stimulated by early onset severe preeclampsia serum (E-PE group),late onset severe preeclampsia serum (L-PE group),HELLP syndrome serum (HELLP group),and normal pregnancy serum (NP group) respectively; each group was added DMEM/F12 medium,reduced form of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase inhibitor (NADPH-Ⅰ) and p38 MAPK inhibitor (p38-Ⅰ)to stimulate cells.Expression of mRNA and protein of LCHAD in trophoblast cells were detected by real-time PCR and western blot.Results (1) The expression of mRNA of LCHAD:the level of mRNA of LCHAD in NP+DMEM,E-PE + DMEM,E-PE + NADPH-Ⅰ,E-PE + p38-Ⅰ,L-PE + DMEM,L-PE + NADPH-Ⅰ,L-PE + p38-Ⅰ and HELLP + DMEM,HELLP + NADPH-Ⅰ,HELLP + p38-Ⅰ groups were 1.00 ± 0.03,0.14 ±0.08,0.95 ±0.20,1.43±1.02,0.37 ±0.18,1.51 ±0.36,1.60 ±0.31,0.10 ±0.04,0.49 ±0.10,0.44 ± 0.21,respectively.The relative expressions of mRNA of LCHAD were significantly reduced in E-PE + DMEM,L-PE + DMEM and HELLP + DMEM groups compared with the NP + DMEM group (P <0.05).Compared with the NP groups,the relative expressions of mRNA of LCHAD were significantly increased in L-PE + NADPH-Ⅰ and L-PE + p38-Ⅰ group (P < 0.05),while reduced in HELLP groups (P <0.05).(2) The expression of protein of LCHAD:the relative expressions of protein of LCHAD in NP +DMEM,E-PE + DMEM,E-PE + NADPH-Ⅰ,E-PE + p38-Ⅰ,L-PE + DMEM,L-PE + NADPH-Ⅰ,L-PE +p38-Ⅰ and HELLP + DMEM,HELLP + NADPH-Ⅰ,HELLP + p38-Ⅰ groups were 19.4 ± 2.2,10.7 ± 1.1,17.9±3.3,19.1 ±2.9,16.4 ±2.3,20.3 ±2.3,20.9 ±4.3,12.4 ±2.3,17.6 ±2.6,17.7 ±2.0 respectively.Compared with the NP groups,the protein expressions of LCHAD were significantly remarkably reduced in E-PE + DMEM,L-PE + DMEM and HELLP groups (P < 0.05).Compared with the DMEM groups,the protein expressions of LCHAD were significantly increased in NADPH-Ⅰ and p38-Ⅰ groups of E-PE,L-PE and HELLP groups (P < 0.05).Conclusions These studies demonstrate that long chain fatty acid oxidation was involved in the pathogenesis and development of preeclampsia.The expressions of gene and protein of LCHAD were remarkably affected by early onset severe preeclampsia and HELLP syndrome.NADPH-Ⅰ and p38-Ⅰ may allay the disorder of fatty acid oxidation.p38MAPK signal transduction pathway may contributed in this process.
语种: 中文
原文出处: 查看原文
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内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/69835
Appears in Collections:北京大学第三临床医学院_妇产科_期刊论文

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作者单位: 100191,北京大学第三医院妇产科

Recommended Citation:
孙晓乐,杨孜,王威,等. 子痫前期对滋养细胞脂肪酸氧化的影响及其与p38MAPK信号通路的相关性[J]. 中华妇产科杂志,2013,48(11):853-857.
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