[1]林颖,刘泉,袁牧之. Tau蛋白和磷酸化Tau蛋白在C57BL/6小鼠和转基因鼠的表达[J].眼科新进展,2015,35(9):824-827.[doi:10.13389/j.cnki.rao.2015.0225]
　LIN Ying,LIU Quan,YUAN Mu-Zhi. Expression of Tau protein and phosphorylation Tau protein in C57BL/6 and transgenic mice[J].Recent Advances in Ophthalmology,2015,35(9):824-827.[doi:10.13389/j.cnki.rao.2015.0225]
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 Tau蛋白和磷酸化Tau蛋白在C57BL/6小鼠和转基因鼠的表达
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《眼科新进展》[ISSN:1003-5141/CN:41-1105/R]

卷:
35卷
期数:
2015年9期
页码:
824-827
栏目:
实验研究
出版日期:
2015-09-05

文章信息/Info

Title:
 Expression of Tau protein and phosphorylation Tau protein in C57BL/6 and transgenic mice
作者:
 林颖; 刘泉; 袁牧之
 545005　广西壮族自治区柳州市，广西医科大学第四临床医学院眼视光科
Author(s):
 LIN Ying; LIU Quan; YUAN Mu-Zhi
 Department of Ophthalmology, the Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005, Guangxi Zhuang Autonomous Region,China
关键词:
 ; 青光眼; 视神经; Tau蛋白; 转基因小鼠
Keywords:
 ; glaucoma ;  optic nerve ;  Tau protein ;  transgenic mouse
DOI:
10.13389/j.cnki.rao.2015.0225
文献标志码:
A
摘要:
 目的　探讨总Ｔａｕ蛋白（Ｔ-ｔａｕ）和磷酸化Ｔａｕ蛋白（Ｐ-ｔａｕ）在慢性青光眼模型小鼠视神经中的表达以及意义。方法　选取Ｃ５７ＢＬ／６雄性小鼠以及ＡＰＰ＋转基因鼠各４０只，每只小鼠右眼为实验眼，左眼为对照眼，通过烙闭实验眼巩膜上静脉建立慢性青光眼模型，采用免疫组织化学方法，检测视神经Ｔ-ｔａｕ以及Ｐ-ｔａｕ在不同青光眼模型中的表达情况。结果　Ｃ５７ＢＬ／６小鼠以及ＡＰＰ＋转基因鼠实验眼术后眼压均高于术前（均为Ｐ＜０．０５），而两组术后眼压差异无统计学意义（Ｐ＞０．０５）。Ｃ５７ＢＬ／６小鼠以及ＡＰＰ＋转基因鼠实验眼Ｔ-ｔａｕＩＯＤ值均低于对照眼（均为Ｐ＜０．０５），而Ｐ-ｔａｕＩＯＤ值均高于对照眼（均为Ｐ＜０．０５）；Ｃ５７ＢＬ／６小鼠实验眼Ｔ-ｔａｕ和Ｐ-ｔａｕＩＯＤ值分别为１０２．２４±１２．１２和１７２．１２±９．０１，均小于ＡＰＰ＋转基因鼠（均为Ｐ＜０．０５）。ＡＰＰ＋转基因鼠实验眼视神经细胞凋亡率为（９．７２±１．０８）％，明显高于Ｃ５７ＢＬ／６小鼠实验眼（７．２４±１．２２）％，差异有统计学意义（均为Ｐ＜０．０５），且两者实验眼均高于对照眼（均为Ｐ＜０．０５）。结论　慢性青光眼小鼠视网膜Ｔ-ｔａｕ蛋白表达量降低，Ｔａｕ蛋白磷酸化水平增加，视神经细胞凋亡率上升，在ＡＰＰ＋转基因小鼠中尤为明显。
Abstract:
 Objective To investigate the expression of total Tau protein ( T-tau) and phosphorylation Tau protein ( P-tau) in optic nerve of chronic glaucoma mice model and its significance. Methods Forty C57BL/6 mice and APP + transgenic nuce were chosen .the right eye of each mouse as the experimental eye ,the left eye as control . the chronic glaucoma model was established by ligating four episcleral vein in the experimental eye, and the immunohistochemical staining method was used to detect the expression of T-tau and P-tau in the optic nerve. Results The postoperative intraocular pressure in the experimental eyes of C57BL/6 mice and APP+ transgenic mice were higher than those before operation ( all P < 0. 05 ) .while the difference in the postoperative intraocular pressure between C57BL/6 mice and APP+ transgemc mice was not statistical significant (P > 0. 05 ). IOD value of T-tau protein in the experimental eyes of C57BL/6 mice and APP+ transgenic mice were lower than that in the control eyes ( all P < 0. 05 ) ,while the IOD value of P-tau protein were higher than the control eyes ( all P < 0. 05 ) ;IOD values of T-tau and P-tau protein in the experimental eyes of C57BL/6 mouse were 102. 24 + 12. 12 and 172. 12 + 9. 01 , respectively , were less than APP + transgenic mice ( all P < 0. 05 ) . The apoptotic rate of optic nerve cell in the experimental eyes of APP+ transgenic mice was (9. 72 + 1. 08 ) % , significantly higher than that of C57BL/6 mice ( 7. 24 + 1. 22 ) % . the difference was statistically significant ( P < 0. 05 ) . and the experimental eyes were all higher than the control eye ( all P < 0. 05 ) . Conclusion The expression of T-tau protein in retina of chronic glaucoma mice decreases, Tau protein phosphorylation level increases , apoptotic rate of optic nerve cell increases , especially in APP+ transgenic mice.

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更新日期/Last Update: 2015-08-31