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丙泊酚对脂多糖刺激人单核细胞丝裂原活化蛋白激酶信号通路的影响 被引量:4

The effects of propofol on the lipopolysaccharide induced activation of mitogen-activated protein kinase pathway in human mononuclear macrophage cells
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摘要 目的研究丙泊酚对脂多糖(lipopolysaccharide,LPS)刺激人单核细胞humanmononuclearmacrophagecell,THP-1)丝裂原活化蛋白激酶(mitogen咀ctivatedproteinkinase,MAPK)信号通路的影响。方法将体外培养的THP-1细胞按完全随机方法分为4组:对照组(C组):给予脂肪乳20mg/L;LPS刺激组(L组):给予LPSIOmg/L;丙泊酚处理组(P组):给予丙泊酚20mg/L;丙泊酚处理合并LPS刺激组(P+L组):给予丙泊酚20mgCL及LPS10mg/L。在刺激后0.5、1、2、6h4个时间点通过免疫蛋白印迹分析(Westernblot)法检测磷酸化p38MAPK(p-p38MAPK),磷酸化细胞外信号调节激酶(p-extracellular-sigualregulatedproteinkinase,p-ERK)1/2及磷酸化c-Jun氨基末端激酶(p-c-Junamino-terminalkinase,p-JNK)1/2含量的变化。结果给予LPS刺激THP.1细胞0.5h时,L组p-p38MAPK、p-ERK1/2及p4NKI/2的相对灰度值分别为14.67±0.82、1.34±0.05、4.49±0.51,与C组比较表达均显著增加(P〈0.05)。给予刺激1h时,L组P-p38MAPK、P-ERKl/2及P-JNK1/2的相对灰度值分别为11.78±0.75、0.58±.05、3.31±0.55,与C组比较表达均显著增加(P〈0.05);P+L组p-ERKl/2的相对灰度值为0.14±0.02,与L组比较磷酸化水平显著降低(P〈0.05)。给予刺激2h时,L组p-p38MAPK和p-JNK1/2的相对灰度值分别为15.60±0.96、8.33±0.70,与C组比较表达均显著增加(P〈0.05);P+L组p-p38MAPK和p-JNKI/2的相对灰度值分别为4.52±0.23、1.80±0.70,与L组比较磷酸化水平显著降低(P〈0.05)。给予刺激6h时,L组p-p38MAPK及p-JNK1/2的相对灰度值分别为18.89±1.22、2.58±0.50,与C组比较表达均显著增]/ff(P〈O.05);P+L组p-p38MAPK的相对灰度值为3.91±0.30,与L组比较磷酸化水平显著降低(P〈0.05)。结论丙泊酚抑制由LPS刺激THP-1细胞引起的p-p38MAPK、p-ERK1/2及p-JNK1/2表达增加,这可能是其抗炎的重要作用机制之一。 Objective To study the effects of propofol on the lipopolysaccharide induced activation of mitogen-activated protein kinase(MAPK) pathway in human mononuelear macrophage cells(THP-1 ). Methods Cultured THP-1 cells were randomly divided into four groups: intralipid(the solvent for propofol, 20 mg/L) group (C group), lipopolysaccharide(LPS)(10 mg/L) group (L group), propofol(20 mg/L) group (P group), propofol(20 mg/L) and LPS( 10 mg/L) group (P+L group). The phosphorylation of p38MAPK, extracellular-signal regulated protein kinase (ERK)1/2 and e-Jun amino-terminal kinase (JNK)1/2 were detected by western blot assay at 0.5, 1, 2 h and 6 h after LPS or propofol treatment. Results Compared with C group, the level of p- p38MAPK (relative intensity: 14.67 ±0.82), p -ERK 1/2 ( relative intensity: 1.34±0.05 ) and p -JNKI/2 (relative intensity : 4.49 ±0.51 ) increased dramatically in L group at 0.5 h after LPS treatment (P〈0.05). Compared with C group, the level of p-p38MAPK(relative intensity : 11.78 ±0.75 ), p -ERK1/2 (relative intensity: 0.58±0.05 ) and p -JNK 1/2 (relative intensity : 3.31±0.55 ) in L group increased significantly at 1 h after LPS treatment (P〈0.05). However, the phosphorylation level of p -ERK 1/2 ( relative intensity : 0.14 ±0.02 ) in P+L group was significantly lower than that of L group at 1 h. After LPS treatment 2 h, compared with C group the level of p-p38MAPK(relative intensity: 15.60+0.96) and p-JNK1/2(relative intensity: 8.33±0.70) in L group increased obviously(P〈0.05),but compared with L group, the level of p-p38MAPK (relative intensity: 4.52±0.23), p- JNK1/2 (relative intensity: 1.80±0.70) decreased dramatically in P+L group(P〈0.05). After LPS treatment 6 h, the level of p-p38MAPK(relative intensity: 18.89±1.22) and p-JNK1/2 (relative intensity: 2.58±0.50) increased significantly in L group (P〈0.05) compared with C group, however, the phosphorylation level of p38MAPK (relative intensity: 3.91±0.30) in P+L group was obviously lower than that of L group (P〈0.05). Conclusions In THP-1 cells, LPS can induce the phosphorylation of p38MAPK, ERK1/2 and JNK1/2, however, this effect can be partial inhibited by propofol, with might be the potential mechanism in anti-inflammation effect.
出处 《国际麻醉学与复苏杂志》 CAS 2012年第6期369-372,383,共5页 International Journal of Anesthesiology and Resuscitation
基金 南方医院院长基金(2009A001,2010C013) 2011年度广东省医学科研基金立项课题项目(B2011202)
关键词 丙泊酚 脂多糖 人单核细胞 MAPK通路 磷酸化 Propofol Lipopolysaccharide Human mononuclear macrophage cell mitogen-activated protein kinasepathway Phosphorylation
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  • 1Brantley-Sieders DM, Caughron J, Hicks D, et al. EphA2 receptor tyrosine kinase regulates endothelial cell migration and vascular assembly through phosphoinositide 3-kinase-mediated Racl GTPase activation[J]. J Cell Sci, 2004, 117(Ptl0): 2037-2049.
  • 2Triplett JW, Feldheim DA. Eph and ephrin signaling in the formation of topographic maps [J]. Semin Cell Dev Biol, 2012, 23 (1): 7-15.
  • 3Carpenter TC, Schroeder W, Stenmark KR, et al. Eph-A2 promotes permeability and inflammatory responses to bleomycin-induced lung injury[J]. Am J Respir Cell Mol Biol, 2012, 46( 1): 40-47.
  • 4Miao H, Li DQ, Mukherjee A, et al. EphA2 mediates ligand- dependent inhibition and ligand-independent promotion of cell migration and invasion via a reciprocal regulatory loop with Akt[J]. Cancer Cell, 2009, 16( 1 ) : 9-20.
  • 5Chen J, Zhuang G, Frleden L, et al. Eph receptors and Ephrins in cancer: common themes and controversies [J]. Cancer Res, 2008, 68(24) : 10031-10033.
  • 6Matsuo K. Eph and ephrin interactions in bone [J]. Adv Exp Med Biol, 2010, 658 : 95-103. DOI: 10.1007/978-1-4419-1050-9_10.
  • 7Jonkam CC, Bansal K, Traber DL, et al. Pulmonary vascular permeability changes in an ovine model of methicillin-resistant Staphylococcus aureus sepsis [J]. Crit Care. 2009, 13 (1): RI9. DOI: 10.1186/cc7720.
  • 8Lange M, Hamabata A, Enkhbaatar P, et al. Assessment of vascular permeability in ovine model of acute lung injury and pneumonia- induced pseudomonas aeruginosa sepsis [J]. Crit Care Med, 2008, 36(4): 1284-1289.
  • 9Zhuang G, Brantley-Sieders DM, Vaught 13, et al. Elevation of receptor tyrosine kinase EphA2 mediates resistance to trastuzumab therapy[J]. Cancer Res, 2010, 70( 1 ) : 299-308.
  • 10Kim C, Ye F, Ginsberg MH. Regulation of integrin activation[J]. Annu Rev Cell Dev Biol, 2011, 27:321-345. DOI:10.1146/ annurev-cellbio-100109-104104.

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