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二氢睾酮通过下调LOX-1的表达抑制J774.1细胞向泡沫细胞转化 被引量:1

Dihydrotestosterone inhibits foam cell formation via a lectin.like ox-low-density lipoprotein receptor mediated mechanism in J774. 1 cell line
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摘要 目的探讨雄激素二氢睾酮(DHT)对雌性巨噬细胞系J774.1细胞的植物血凝素样氧化低密度脂蛋白受体1(LOX-1)表达及泡沫细胞形成的影响。方法体外培养J774.1细胞,通过氧化低密度脂蛋白(OX—LDL)诱导巨噬细胞向泡沫细胞转化,采用1×10^-9mol/L和1×10^-8mol/L浓度的DHT进行预处理,提取细胞mRNA及蛋白行实时定量PCR及Western印迹法检测LOX-1mRNA及蛋白表达,油红O染色观察泡沫细胞形态,按照泡沫细胞数/视野及每个视野中油红染色的颗粒面积进行定量分析。结果与对照组(加入乙醇)相比,ox—LDL明显增加J774.1细胞的LOX-1mRNA(4.71±0.31比1.00±0.06)及蛋白(1.75±0.11比1.04±0.04)相对表达水平(均P〈0.01)。应用1×10^-9mol/L和1×10^-9mol/L浓度的DHT可以降低ox-LDL诱导的LOX-1mRNA(2.81±0.46、2.29±0.21比4.71±0.31,均P〈0.05)和蛋白表达水平(1.35±0.06、1.09±0.04比1.75±0.11,均P〈0.05)。这种作用可通过雄激素受体(AR)阻滞剂逆转87.6%(P=0.004)。油红O染色表明ox—LDL明显增加泡沫细胞形成(45.9±3.7比0.0±0.0,P〈0.01)。应用1×10^-9mol/L和1×10^-8mol/L浓度的DHT可以抑制ox-LDL诱导的泡沫细胞形成(泡沫细胞数/视野定量分析:36.0±3.0、29.1±1.3比45.9±3.7,均P〈0.05;油红O相对染色面积定量分析:7983±1035、4060±390比14750±2489,均P〈0.05)。结论1×10^-9mol/L和1×10^-8mol/L浓度的DHT通过AR可以减少雌性巨噬细胞系J774.1细胞的LOX-1表达,并抑制J774.1细胞向泡沫细胞转化。 Objective To investigate the effect of dihydrotestosterone (DHT) on lectin-like ox- low-density lipoprotein (LDL) receptor (LOX-1)expression and foam cell formation in the female macrophage cell line J774. 1. Methods In cultured J774. 1 cells, after pretreated with DHT at concentrations of 1×10^-9 mol/L and 1 ×10^-8 mol/L, ox-LDL-induced LOX-1 expression and foam cell formation were investigated by quantitative real-time PCR, Western blotting, and oil-red O staining. Results DHT at concentrations of 1×10^-9 mol/L and 1×10^-8 mol/L inhibited ox-LDL-induced LOX-1 mRNA (2. 81 ± 0.46 and 2. 29 ± 0. 21 vs 4. 71 ± 0. 31, both P 〈 0. 01 ) and protein expression ( 1.35 ±0. 06 and 1.09 ± 0. 04 vs 1.75 ± 0. 11, both P 〈 0. 05 ). The effect was partly reversed by the androgen receptor (AR) blocker flutamide (87. 6%, P = 0. 004). Oil-red O staining also revealed that DHT at concentrations of 1 ×10^-9 mol/L and 1 ×10^-8 mol/L suppressed ox-LDL-induced foam cell formation as quantified by the number of foam cells per high-power field (HPF) ( 36.0 ± 3.0 and 29. 1± 1.3 vs 45.9 ± 3.7, both P 〈 0.05 ) and by the area of oil-red O stained particles per HPF (7 983 ± 1 035 and 4 060 ± 390 vs 14 750 ± 2 489, both P 〈 0. 05 ). Conclusion DHT at concentrations of 1 ×10^-9 mol/L and 1 ×10^-8 mol/L decreases LOX-1 expression and foam cell formation via AR.
出处 《中华医学杂志》 CAS CSCD 北大核心 2016年第42期3403-3407,共5页 National Medical Journal of China
基金 国家自然科学基金(81170779)
关键词 双氢睾酮 雌性巨噬细胞 LDL受体相关蛋白质类 泡沫细胞 动脉粥样硬化 Dihydrotestosterone Female macrophage LDL-receptor related proteins Foam cells Atherosclerosis
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参考文献13

  • 1张秀锦,李小鹰,曹甜甜,叶玲.内源性雄激素及雄激素受体水平与老年男性冠心病的相关性[J].中华医学杂志,2011,91(14):984-986. 被引量:16
  • 2Khazai B, Golden SH, Colangelo LA, et al. Association of endogenous testosterone with subclinical atherosclerosis in men: the multi-ethnic study of atherosclerosis [ J ]. Clin Endocrinol (Oxf) , 2016, 85(5) :700-707. 被引量:1
  • 3Akishita M, Yu J. Hormonal effects on blood vessels [ J ]. Hypertens Res, 2012, 35 (4): 363-369. 被引量:1
  • 4Sievers C, Klotsche J, Pieper L, et al. Low testosterone levels predict all-cause mortality and cardiovascular events in women: a prospective cohort study in German primary care patients[ J]. EurJ Endocrinol, 2010, 163(4) : 699-708. 被引量:1
  • 5Montalcini T, Migliaccio V, Ferro Y, et al. Androgens for postmenopausal women' s health? [ J]. Endocrine, 2012, 42 (3) : 514-520. 被引量:1
  • 6Paterakis TS, Diamanti-Kandarakis E. Aspects of cardiometabolic risk in women with polycystic ovary syndrome [ J ]. Curr Obes Rep, 2014, 3 (4) : 377-386. 被引量:1
  • 7Hughan KS, Tfayli H, Warren-Ulanch JG, et al. Early biomarkers of subclinical atherosclemsis in obese adolescent girls with polycystic ovary syndrome[ J]. J Pediatr, 2016, 168: 104- 111. 被引量:1
  • 8Mehta JL, Sanada N, Hu CP, et al. Deletion of LOX-1 reduces atherogenesis in LDLR knockout mice fed high cholesterol diet [J]. Circ Res, 2007, 100(11) :1634-1642. 被引量:1
  • 9Qiu Y, Yanase T, Hu H, et al. Dihydretestosterene suppresses foam cell formation and attenuates atherosclerosis development [J]. Endocrinology, 2010, 151 (7) : 3307-3316. 被引量:1
  • 10Fagman JB, Wilhelmson AS, Motta BM, et al. The androgen receptor confers protection against diet-induced atherosclerosis, obesity, and dyslipidemia in female mice [ J. FASEB J, 2015, 29(4) :1540-1550. 被引量:1

二级参考文献9

  • 1李江源,李小鹰,李明,张高魁,马芳玲,刘志明,张南雁,孟萍.血清游离睾酮水平和睾酮分泌指数随年龄老化而降低[J].中华男科学杂志,2006,12(6):555-558. 被引量:46
  • 2Traish AM, Saad F, Feeley RJ, et al. The Dark Side of Testosterone Deficiency: Ⅲ. Cardiovascular Disease. J Androl, 2009, 30:477494. 被引量:1
  • 3Tung DS, Cunningham GR. Androgen Deficiency in Men. The Endocrinologist, 2007,17 : 101-115. 被引量:1
  • 4Jones TH. Testosterone deficiency: a risk factor for cardiovascular disease? Trends Endocrinol Metab, 2010, 21:496-503. 被引量:1
  • 5Allender S, Peto V, Scarborough P, et al. Coronary Heart Disease Statistics. 2008: 1242. (available at www. heartstats, org/temp/ 2008. chapterspl, pdf). 被引量:1
  • 6Hak A, Witteman J, de Jong F, et al. Low levels of endogenous androgens increase the risk of atherosclerosis in elderly men: the Rotterdam study. J Clin Endoerinol Metab, 2002, 87:3632-3639. 被引量:1
  • 7Jones RD, Malkin CJ, Channer KS, et al. Low levels of endogenous androgens increase the risk of atherosclerosis in elderly men: further supportive data. J Clin Endoerinol Metab, 2003, 88 : 1403-1404. 被引量:1
  • 8Li J, A1-Azzawi F. Mechanism of androgen receptor action. Maturitas, 2009, 63: 142-148. 被引量:1
  • 9Liu PY, Death AK, Handelsman DJ. Androgens and cardiovascular disease. Endoer Rev, 2003, 24:313-340. 被引量:1

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