糖尿病視網(wǎng)膜病變患者纖維血管膜中SIRT1的表達(dá)及其相關(guān)機(jī)制初步研究
[Abstract]:[objective] Diabetic retinopathy (Diabetic retinopathy, DR) is a common diabetic microvascular complication. SIRT1 belongs to the third histone deacetylase and is associated with the pathogenesis of DR. The purpose of this study was to investigate the role of SIRT1 in the formation of vascular membranes of DR fibers, and to investigate whether resveratrol, a SIRT1 agonist, has protective effect on RPE cells cultured with high glucose and its related mechanisms. At the same time, we also studied whether stilbene glycoside, which is similar to resveratrol, has similar effect. [methods] the ocular specimens of DR patients with fundus fibrovascular membrane and non-diabetic patients with idiopathic macular membrane were collected and embedded in paraffin sections. The difference of SIRT1 expression between the two groups was detected by immunohistochemistry. In vitro cultured human retinal pigment epithelial cells (RPE) were cultured with 5.5mmol/L glucose 5.5 mmol / L glucose + mannitol 25 mmol / L glucose and resveratrol, stilbene glucoside at different concentrations. The following indexes were detected: (1) CCK-8 method was used to detect cell viability; (2) SIRT1,PGC-1 偽 gene expression was detected by RT-PCR, (3) acetylated NF- 魏 B p65 and AMPK activity were detected by) Western blot, and (4) VEGF secretion was detected by ELISA assay. [results] A total of 12 patients with DR and 7 patients with non-diabetic macular membrane were collected. The positive rate of SIRT1 in fibrovascular membrane was higher than that in macular membrane tissue (100% vs 28.6%). The difference was statistically significant (p0. 021). 25 mmol / L glucose could decrease the activity of human retinal pigment epithelial cells, inhibit the transcription of SIRT1 and PGC-1 偽, activate NF- 魏 B, inhibit the activity of AMPK and promote the secretion of VEGF. A certain concentration of resveratrol or stilbene could inhibit the decrease of cell viability, decrease the level of SIRT1 transcription, and decrease the secretion of NF- 魏 B. At the same time, resveratrol and stilbene at a certain concentration could reduce the inhibitory effect of high glucose on PGC-1 偽 transcription, the amplitude of which was not completely consistent with the change level of SIRT1,NF- 魏 B, but it was basically consistent with the activity change of AMPK. [conclusion] the increased expression of SIRT1 in fibrovascular membrane of DR patients suggests that SIRT1 is related to DR neovascularization. However, high glucose could inhibit the expression of SIRT1 in cultured human retinal pigment epithelial cells. These results suggest that the in vitro experiments may not completely reflect the physiological conditions of the retina, or the content of SIRT1 is constantly changing during the progression of DR. These results suggest that stilbene glucoside may also have the effect of SIRT1 agonist, and resveratrol and stilbene glycoside may decrease VEGF secretion through SIRT1-NF- 魏 B pathway. At the same time, the level of PGC-1 偽 mRNA may be related to the activity of AMPK.
【學(xué)位授予單位】:北京協(xié)和醫(yī)學(xué)院
【學(xué)位級(jí)別】:博士
【學(xué)位授予年份】:2013
【分類號(hào)】:R587.2;R774.1
【共引文獻(xiàn)】
相關(guān)期刊論文 前10條
1 ;Expression of neuroglobin in ocular hypertension induced acute hypoxic-ischemic retinal injury in rats[J];International Journal of Ophthalmology(English Edition);2011年04期
2 龔正鵬;于明;喻望博;張國(guó)帥;葉惠平;;HDAC1和SIRT1在喉鱗癌中的表達(dá)及意義[J];貴陽(yáng)醫(yī)學(xué)院學(xué)報(bào);2013年04期
3 郭際;呂飛舟;夏新雷;;SIRT1與髓核細(xì)胞衰老調(diào)控[J];國(guó)際骨科學(xué)雜志;2013年04期
4 黃晶;任陽(yáng);余秀鋒;周錫紅;汪以真;;豬腺苷酸活化蛋白激酶α基因(AMPKα)特異性siRNA載體的構(gòu)建及干擾效果評(píng)價(jià)[J];農(nóng)業(yè)生物技術(shù)學(xué)報(bào);2013年09期
5 王夢(mèng)婕;李新葉;藍(lán)丹;;煙酰胺磷酸核糖轉(zhuǎn)移酶與炎癥、腫瘤的關(guān)系[J];臨床兒科雜志;2013年10期
6 符一嵐;王瑛;尹繼業(yè);任華益;周宏灝;劉昭前;;SIRT1基因多態(tài)性與肺癌化療敏感性的關(guān)系[J];腫瘤藥學(xué);2013年06期
7 馬薇;周昌菊;;人子宮體部平滑肌收縮相關(guān)蛋白的篩選[J];中南大學(xué)學(xué)報(bào)(醫(yī)學(xué)版);2013年10期
8 王遜;龍建綱;劉健康;;運(yùn)動(dòng)和營(yíng)養(yǎng)素的細(xì)胞內(nèi)作用靶點(diǎn)——線粒體:阿爾茨海默病防治的新思路[J];體育科研;2013年06期
9 蒲聰穎;張晨;張媛媛;;Sirtuin蛋白家族在腫瘤化療耐藥中的作用研究進(jìn)展[J];四川生理科學(xué)雜志;2013年04期
10 呂超;譚曉琳;任玲;萬(wàn)超;陳蕾;;糖尿病視網(wǎng)膜病變中生長(zhǎng)因子改變與神經(jīng)元變性的研究新進(jìn)展[J];中華臨床醫(yī)師雜志(電子版);2011年10期
相關(guān)博士學(xué)位論文 前10條
1 王鑫鑫;SIRT1對(duì)胃癌惡性生物學(xué)行為的影響及作用機(jī)制研究[D];中國(guó)人民解放軍軍醫(yī)進(jìn)修學(xué)院;2013年
2 鄧?yán)蚶?水楊酸鈉誘導(dǎo)耳蝸螺旋神經(jīng)節(jié)神經(jīng)元損傷機(jī)制的研究[D];廣西醫(yī)科大學(xué);2013年
3 黃漢鵬;慢性間歇性缺氧對(duì)大鼠頦舌肌線粒體的影響以及脂聯(lián)素的干預(yù)機(jī)制[D];南京醫(yī)科大學(xué);2013年
4 劉曉麗;SIRT1在銅綠假單胞菌LPS誘導(dǎo)A549細(xì)胞凋亡中的作用研究[D];北京協(xié)和醫(yī)學(xué)院;2013年
5 崔英華;心肌梗死患者SIRT1基因啟動(dòng)子基因分析及功能測(cè)定[D];天津醫(yī)科大學(xué);2013年
6 張群芳;賴氨酸乙;{(diào)節(jié)大腸桿菌NhoA蛋白活性的研究[D];華中農(nóng)業(yè)大學(xué);2013年
7 原江水;白藜蘆醇對(duì)大鼠的抗衰老作用研究[D];中國(guó)海洋大學(xué);2013年
8 鄭恬;白藜蘆醇對(duì)人Tenon's囊成纖維細(xì)胞增殖的影響及機(jī)制研究[D];華中科技大學(xué);2013年
9 張金康;二苯乙烯苷防治骨質(zhì)疏松的作用及相關(guān)機(jī)制研究[D];第四軍醫(yī)大學(xué);2013年
10 周暄宣;高純度二苯乙烯苷制備工藝及其抗衰老機(jī)制研究[D];第四軍醫(yī)大學(xué);2013年
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1 羅麗麗;白藜蘆醇在脂多糖誘導(dǎo)的PC12細(xì)胞凋亡中的保護(hù)作用[D];南方醫(yī)科大學(xué);2012年
2 齊赫;二甲雙胍對(duì)貢氏假鰓溕壽命、行為學(xué)、代謝及組織學(xué)衰老指標(biāo)的影響[D];山東師范大學(xué);2013年
3 王文秀;抗阻運(yùn)動(dòng)對(duì)自然衰老小鼠骨骼肌Sirt1/p53/caspase-3通路相關(guān)基因表達(dá)的影響[D];華東師范大學(xué);2013年
4 姜洋;抗阻訓(xùn)練對(duì)衰老小鼠肝臟AMPK/SIRT1/NF-kB信號(hào)通路介導(dǎo)的炎癥反應(yīng)的影響[D];華東師范大學(xué);2013年
5 時(shí)肖;左卡尼汀對(duì)1型糖尿病大鼠視網(wǎng)膜神經(jīng)細(xì)胞保護(hù)作用的研究[D];青島大學(xué);2013年
6 王夢(mèng)婕;維生素B3促進(jìn)大鼠中性粒細(xì)胞生成作用的研究[D];廣西醫(yī)科大學(xué);2013年
7 黃倩倩;廣西巴馬居民SIRT6、HSP70、FOXO3A基因mRNA及蛋白水平研究[D];廣西醫(yī)科大學(xué);2013年
8 宋璨;桔青霉組蛋白去乙;富騊ci-RpdA和Pci-HdaA的克隆表達(dá)及特征分析[D];西南大學(xué);2013年
9 趙芳;SIRT1在豬卵巢顆粒細(xì)胞凋亡過(guò)程中的作用研究[D];南京農(nóng)業(yè)大學(xué);2012年
10 上官士浩;3-芳基-5-吲唑基-1,2,4-VA二唑類HIF-1抑制劑的設(shè)計(jì)、合成和抗腫瘤活性研究[D];浙江大學(xué);2013年
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