葛根素对氧糖剥夺细胞模型CaM、CaMKⅡ、MECP2、BDNF及Akt表达的影响
R543%R743; 目的 研究葛根素对氧糖剥夺(oxygen and glucose deprivation,OGD)血管性痴呆细胞模型细胞黏附分子(CaM)、钙调蛋白激酶Ⅱ(CaMKⅡ)、脑源性神经营养因子(BDNF)及Akt表达的影响.方法 选取生长良好的PC12细胞传代、分化,行OGD准备血管性痴呆细胞模型,随机分为对照组、模型组及低、中、高剂量葛根素组.MTT法测定细胞存活率并确定合适的葛根素干预浓度及OGD处理时间;检测乳酸脱氢酶(LDH)释放量评定细胞损伤程度,鉴定细胞模型;Western blot检测CaM、CaMKⅡ、MECP2、BDNF及Akt蛋白的表达水平.结果 PC12...
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| Published in | 西安交通大学学报（医学版） Vol. 40; no. 1; pp. 153 - 157 |
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| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
西安交通大学第二附属医院神经内科,陕西西安,710004%泰康同济(武汉)医院神经内科,湖北武汉,430000
2019
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1671-8259 |
| DOI | 10.7652/jdyxb201901030 |
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| Abstract | R543%R743; 目的 研究葛根素对氧糖剥夺(oxygen and glucose deprivation,OGD)血管性痴呆细胞模型细胞黏附分子(CaM)、钙调蛋白激酶Ⅱ(CaMKⅡ)、脑源性神经营养因子(BDNF)及Akt表达的影响.方法 选取生长良好的PC12细胞传代、分化,行OGD准备血管性痴呆细胞模型,随机分为对照组、模型组及低、中、高剂量葛根素组.MTT法测定细胞存活率并确定合适的葛根素干预浓度及OGD处理时间;检测乳酸脱氢酶(LDH)释放量评定细胞损伤程度,鉴定细胞模型;Western blot检测CaM、CaMKⅡ、MECP2、BDNF及Akt蛋白的表达水平.结果 PC12细胞存活率随OGD时间延长而逐渐降低,呈时间依赖性;PC12细胞存活率随葛根素浓度增加而逐渐升高,呈浓度依赖性.葛根素有效干预浓度为0.1～10μmol/L;OGD最佳处理时间为6 h.与对照组相比,模型组LDH释放量明显增高(P<0.05);葛根素干预组LDH释放量随葛根素浓度增加而减少(P<0.05).模型组CaM蛋白表达明显升高,BDNF表达量明显减少(P<0.05),MECP2表达及CaMKⅡ、Akt蛋白磷酸化水平均未见明显变化(P>0.05).葛根素干预可下调CaM蛋白水平,提高MECP2、BDNF的表达及CaMKⅡ磷酸化水平,中、高剂量葛根素组亦能升高Akt蛋白磷酸化水平(P<0.05).结论 葛根素可能通过提高Ca2+-CaM复合物介导CaMKⅡ自身磷酸化水平,诱导MECP2磷酸化,上调BDNF的表达,激活下游PI3K-Akt通路,抑制凋亡基因及蛋白表达,发挥神经保护作用. |
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| AbstractList | R543%R743; 目的 研究葛根素对氧糖剥夺(oxygen and glucose deprivation,OGD)血管性痴呆细胞模型细胞黏附分子(CaM)、钙调蛋白激酶Ⅱ(CaMKⅡ)、脑源性神经营养因子(BDNF)及Akt表达的影响.方法 选取生长良好的PC12细胞传代、分化,行OGD准备血管性痴呆细胞模型,随机分为对照组、模型组及低、中、高剂量葛根素组.MTT法测定细胞存活率并确定合适的葛根素干预浓度及OGD处理时间;检测乳酸脱氢酶(LDH)释放量评定细胞损伤程度,鉴定细胞模型;Western blot检测CaM、CaMKⅡ、MECP2、BDNF及Akt蛋白的表达水平.结果 PC12细胞存活率随OGD时间延长而逐渐降低,呈时间依赖性;PC12细胞存活率随葛根素浓度增加而逐渐升高,呈浓度依赖性.葛根素有效干预浓度为0.1～10μmol/L;OGD最佳处理时间为6 h.与对照组相比,模型组LDH释放量明显增高(P<0.05);葛根素干预组LDH释放量随葛根素浓度增加而减少(P<0.05).模型组CaM蛋白表达明显升高,BDNF表达量明显减少(P<0.05),MECP2表达及CaMKⅡ、Akt蛋白磷酸化水平均未见明显变化(P>0.05).葛根素干预可下调CaM蛋白水平,提高MECP2、BDNF的表达及CaMKⅡ磷酸化水平,中、高剂量葛根素组亦能升高Akt蛋白磷酸化水平(P<0.05).结论 葛根素可能通过提高Ca2+-CaM复合物介导CaMKⅡ自身磷酸化水平,诱导MECP2磷酸化,上调BDNF的表达,激活下游PI3K-Akt通路,抑制凋亡基因及蛋白表达,发挥神经保护作用. |
| Author | 张萌 王虎清 吴海琴 高震 陈梦燚 陈婉莹 |
| AuthorAffiliation | 西安交通大学第二附属医院神经内科,陕西西安,710004%泰康同济(武汉)医院神经内科,湖北武汉,430000 |
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| Author_FL | CHEN Meng-yi CHEN Wan-ying WANG Hu-qing GAO Zhen ZHANG Meng WU Hai-qin |
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| DocumentTitle_FL | Effects of puerarin on the expressions of CaM,CaMKⅡ,MECP2,BDNF and Akt in oxygen and glucose deprivation cell models |
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| Keywords | MECP2 CaMK BDNF PC12细胞 Akt 氧糖剥夺 CaM 葛根素 |
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| Snippet | R543%R743; 目的 研究葛根素对氧糖剥夺(oxygen and glucose deprivation,OGD)血管性痴呆细胞模型细胞黏附分子(CaM)、钙调蛋白激酶Ⅱ(CaMKⅡ)、脑源性神经营养因子(BDNF)及Akt表达的影响.方法... |
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| Title | 葛根素对氧糖剥夺细胞模型CaM、CaMKⅡ、MECP2、BDNF及Akt表达的影响 |
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