[1]谷艳霞,王超,陈钜涛,等.LPA2对PC12细胞缺血再灌注损伤致细胞凋亡的作用[J].卒中与神经疾病杂志,2017,24(03):177-180+184.[doi:10.3969/j.issn.1007-0478.2017.03.002]
 Gu Yanxia,Wang Chao,Chen Jutao,et al.The effect of LPA2 on PC12 cell apoptosis induced by ischemia/reperfusion injury[J].Stroke and Nervous Diseases,2017,24(03):177-180+184.[doi:10.3969/j.issn.1007-0478.2017.03.002]
点击复制

LPA2对PC12细胞缺血再灌注损伤致细胞凋亡的作用()
分享到:

《卒中与神经疾病》杂志[ISSN:1007-0478/CN:42-1402/R]

卷:
第24卷
期数:
2017年03期
页码:
177-180+184
栏目:
论 著
出版日期:
2017-06-26

文章信息/Info

Title:
The effect of LPA2 on PC12 cell apoptosis induced by ischemia/reperfusion injury
文章编号:
1007-0478(2017)03-0177-05
作者:
谷艳霞王超陈钜涛李婷婷王俐婷张杰曹来伟张兆辉万芪
430060 武汉大学人民医院神经内科[谷艳霞(在读硕士研究生)王超 陈钜涛 李婷婷 王俐婷 张杰 曹来伟 张兆辉(通信作者)]; 武汉大学基础医学院生理系(万芪)
Author(s):
Gu YanxiaWang ChaoChen Jutao et al.
Department of Neurology,Renmin Hospital of Wuhan University,Wuhan 430060
关键词:
缺血再灌注 糖氧剥夺 溶血磷脂酸受体2 PC12细胞
Keywords:
Ischemia/reperfusion Oxygen glucose deprivation Lysophosphatidic acid receptor 2 PC12 cell
分类号:
R743.32
DOI:
10.3969/j.issn.1007-0478.2017.03.002
摘要:
目的 探讨LPA2在PC12细胞缺血再灌注损伤致细胞凋亡中发挥的作用。方法 测最适缺氧时间:将PC12细胞分为6组,分别在三气培养箱中糖氧剥夺0、3、6、9、12、15 h。换高糖培养基普通培养箱中复氧24 h,MTT测细胞存活率; 将PC12细胞分为5组:正常组、缺血再灌注组(OGD组)、缺血再灌注+溶剂对照组(OGD+DMSO组)、缺血再灌注+LPA2激动剂(Dodecylphosphate)组(OGD+激动剂组)、缺血再灌注+LPA2抑制剂(H2L5186303)组(OGD+抑制剂组),缺氧最适时间后再复氧24 h,MTT测细胞存活率,Western Blotting检测LPA2及p-akt蛋白表达水平。结果 缺氧处理12 h是模拟缺血再灌注损伤的最适时间; 缺血再灌注组与正常组比较LPA2表达水平降低; 激动剂组与溶剂对照组比较LPA2表达水平增高,p-akt表达水平增高。结论 升高LPA2表达水平可提高细胞的存活率,LPA2在缺血再灌注损伤中发挥保护作用。
Abstract:
ObjectiveTo investigate the effect of LPA2 on PC12 cell apoptosis induced by ischemia/reperfusion injury.Methods To detect the suitable time of the oxygen glucose deprivation,the PC12 cells were divided into 6 groups, which were deprived of oxygen for 0,3, 6, 9, 12 and 15 h in tri-gas incubators. The cell viability was measured by MTT after 24 h of reoxygenation in a normal incubator.Then,the PC12 cells were divided into 5 groups:the normal culture group; ischemia/reperfusion group, ischemia/reperfusion group+ solvent control(DMSO)group, Ischemia/reperfusion+LPA2 antagonist(H2L5186303)group, ischemia/reperfusion+LPA2 agonist(Dodecylphosphate)group. The cell viability was measured by MTT assay and the protein expression of LPA2 and p-akt were detected by western blotting.Results The oxygen glucose deprivation for 12 hours migat be the suitable time for inducing neuron injury. The expression of LPA2 receptor in OGD groups were lower than that in normal group and the expression of p-akt in the OGD group was lower than that in the normal control group. The expression of LPA2 receptor and p-akt in the agonist group were higher than that in the solvent control group.Conclusion Increasing the expression of LPA2 could improve the survival rate of cells, LPA2 played a protective role in PC12 cell apoptosis induced by ischemia/reperfusion injury

参考文献/References:

[1] Feigin V L, Lawes C M, Bennett D A, et al. Worldwide stroke incidence and early case fatality reported in 56 population-based studies: a systematic review[J]. Lancet Neurol, 2009,8(4):355-369.
[2] Bennett D A, Krishnamurthi R V, Barker-Collo S, et al. The global burden of ischemic stroke: findings of the GBD 2010 study[J]. Glob Heart, 2014,9(1):107-112.
[3] Choi J W, Herr D R, Noguchi K, et al. LPA receptors: subtypes and biological actions[J]. Annu Rev Pharmacol Toxicol, 2010,50:157-186.
[4] Penz S, Reininger A J, Brandl R, et al. Human atheromatous plaques stimulate thrombus formation by activating platelet glycoprotein VI[J]. FASEB J, 2005,19(8):898-909.
[5] Holtsberg F W, Steiner M R, Keller J N, et al. Lysophosphatidic acid induces necrosis and apoptosis in hippocampal neurons[J]. J Neurochem, 1998,70(1):66-76.
[6] Noguchi K, Herr D, Mutoh T, et al. Lysophosphatidic acid(LPA)and its receptors[J]. Curr Opin Pharmacol, 2009,9(1):15-23.
[7] E S, Lai Y J, Tsukahara R, et al. Lysophosphatidic acid 2 receptor-mediated supramolecular complex formation regulates its antiapoptotic effect[J]. J Biol Chem, 2009,284(21):14558-14571.
[8] Li Q, Khatibi N, Zhang J H. Vascular neural network: the importance of vein drainage in stroke[J]. Transl Stroke Res, 2014,5(2):163-166.
[9] Zhang J H, Badaut J, Tang J, et al. The vascular neural network--a new paradigm in stroke pathophysiology[J]. Nat Rev Neurol, 2012,8(12):711-716.
[10] Astrup J, Siesjo B K, Symon L. Thresholds in cerebral ischemia-the ischemic penumbra[J]. Stroke, 1981,12(6):723-725.
[11] Lees K R, Bluhmki E, von Kummer R, et al. Time to treatment with intravenous alteplase and outcome in stroke: an updated pooled analysis of ECASS, ATLANTIS, NINDS, and EPITHET trials[J]. Lancet, 2010,375(9727):1695-1703.
[12] Moolenaar W H, van Meeteren L A, Giepmans B N. The ins and outs of lysophosphatidic acid signaling[J]. Bioessays, 2004,26(8):870-881.
[13] Mills G B, Moolenaar W H. The emerging role of lysophosphatidic acid in cancer[J]. Nat Rev Cancer, 2003,3(8):582-591.
[14] Choi J W, Chun J. Lysophospholipids and their receptors in the central nervous system[J]. Biochimica et Biophysica Acta(BBA)- Molecular and Cell Biology of Lipids, 2013,1831(1):20-32.
[15] Yung Y C, Stoddard N C, Chun J. LPA receptor signaling: pharmacology, physiology, and pathophysiology[J]. The Journal of Lipid Research, 2014,55(7):1192-1214.
[16] Deng W, Shuyu E, Tsukahara R, et al. The lysophosphatidic acid type 2 receptor is required for protection against radiation-induced intestinal injury[J]. Gastroenterology, 2007,132(5):1834-1851.
[17] Lin F T, Lai Y J. Regulation of the LPA2 receptor signaling through the carboxyl-terminal tail-mediated protein-protein interactions[J]. Biochim Biophys Acta, 2008,1781(9):558-562.
[18] Vaudry D, Stork P J, Lazarovici P, et al. Signaling pathways for PC12 cell differentiation: making the right connections[J]. Science, 2002,296(5573):1648-1649.
[19] Hillion J A, Takahashi K, Maric D, et al. Development of an ischemic tolerance model in a PC12 cell line[J]. J Cereb Blood Flow Metab, 2005,25(2):154-162.

备注/Memo

备注/Memo:
基金项目:武汉大学医学部创新种子基金项目
更新日期/Last Update: 2017-06-20