Rho A/ROCK信號轉(zhuǎn)導(dǎo)通路在肝纖維化中的作用及法舒地爾的肝臟保護機制研究
發(fā)布時間:2021-03-31 06:39
肝纖維化(hepatic fibrosis)是多種病因所致的慢性肝損傷的修復(fù)反應(yīng),是慢性肝病轉(zhuǎn)化為肝硬化和肝功能衰竭的必經(jīng)階段和共同病理基礎(chǔ),因此,預(yù)防、治療甚至逆轉(zhuǎn)肝纖維化是阻斷肝硬化的關(guān)鍵環(huán)節(jié)。研究證實肝纖維化是由于膠原合成、沉積與降解和吸收的動態(tài)平衡被破壞,使膠原的合成與沉積大于降解和吸收,致使細胞外基質(zhì)(extracellularmatrix,ECM)過度沉積為典型特征,在這一過程中炎癥反應(yīng)、氧化應(yīng)激、免疫反應(yīng)和細胞凋亡等病理生理過程發(fā)揮了重要的作用。我國是肝病高發(fā)國家,目前尚無有效的抗肝病藥物,如何阻止或逆轉(zhuǎn)ECM過度沉積成為治療慢性肝病的關(guān)鍵,也是國內(nèi)外學(xué)者的研究重點。Rho蛋白作為小分子的鳥苷酸結(jié)合蛋白,屬于Ras超家族成員,被稱為“分子開關(guān)”。ROCK是Rho A下游最主要的效應(yīng)分子,是絲氨酸/蘇氨酸(Ser/Thr)蛋白激酶家族成員。近年來研究發(fā)現(xiàn),激活的Rho A/ROCK信號轉(zhuǎn)導(dǎo)通路能夠介導(dǎo)細胞粘附與遷移、肌動蛋白骨架形成及細胞增殖和凋亡等多種生物學(xué)功能,這些效應(yīng)在多種器官組織慢性炎癥纖維化中發(fā)揮了重大作用。有研究表明,選擇性阻斷該信號通路可以改善纖維化器官的進展...
【文章來源】:河北醫(yī)科大學(xué)河北省
【文章頁數(shù)】:131 頁
【學(xué)位級別】:博士
【部分圖文】:
肝臟組織病理變化(H&E染色)
圖 2 肝臟組織病理變化(Masson 染色)Fig. 2 Effects of fasudil on hepatic fibrosis as assessed by staining withMasson's trichrome.Representative microscopic photographs of liver stained with Masson's trichrome (400×magnification). Livers were obtained from the normal control (NC), untreated diabetic(DM), low-dose fasudil-treated (L-Fas), high-dose fasudil-treated (H-Fas), and captopril-treated (Cap) groups. Scale bar, 50 μm.#P < 0.05 vs. control group;##P < 0.01 vs. controlgroup; *P < 0.05 vs. DM group; **P < 0.01 vs. DM group; n = 10.
圖 3 大鼠肝臟組織 TGF- 1、MMP-9、TIMP-1、 NF-κB p65 及 IκB蛋白含量變化情況Fig. 3 TGF- 1, MMP-9, TIMP-1, NF-κB p65 and IκB protein levels in ratlivers treated with fasudil.Livers were obtained from the normal control (NC), untreated diabetic (DM), low-dosefasudil-treated (L-Fas), high-dose fasudil-treated (H-Fas), and captopril-treated (Cap)groups. Intensities of target proteins were standardized to that of β-actin. The proportionshowed in the histogram below the target bands. Results are expressed as the mean ±SEM.#P < 0.05 vs. control group;##P < 0.01 vs. control group; *P < 0.05 vs. DM group; **P <0.01 vs. DM group; n = 10.
【參考文獻】:
期刊論文
[1]影響2型糖尿病患者新發(fā)非酒精性脂肪肝相關(guān)因素分析[J]. 閻勁松,袁丹,李東升. 實用肝臟病雜志. 2016(02)
[2]法舒地爾對早期糖尿病腎病患者氧化應(yīng)激的影響[J]. 徐美榮,吳甘霖. 實用醫(yī)學(xué)雜志. 2015(08)
[3]法舒地爾抑制氧化應(yīng)激反應(yīng)減輕2型糖尿病大鼠心肌纖維化[J]. 李貴芝,周紅,房彩霞,張力輝,王綿,王瑞英. 基礎(chǔ)醫(yī)學(xué)與臨床. 2014(02)
[4]法舒地爾抗動脈粥樣硬化作用及其機制[J]. 武多嬌,張怡,高平進,朱鼎良. 中國臨床藥學(xué)雜志. 2010(02)
[5]大鼠免疫性與淤膽性肝纖維化發(fā)病機制比較[J]. 何瑤,陳白莉,楊榮萍,任明,曾志榮. 南方醫(yī)科大學(xué)學(xué)報. 2010(02)
[6]肝纖維化動物模型探討[J]. 周賢,劉翼,夏國棟,邵澤勇. 四川動物. 2010(01)
[7]Angiotensin-receptor blockers as therapy for mild-to-moderate hypertension-associated non-alcoholic steatohepatitis[J]. Eugen Florin Georgescu,Reanina Ionescu,Mihaela Niculescu,Laurentiu Mogoanta,Liliana Vancica. World Journal of Gastroenterology. 2009(08)
[8]異丙酚對離體大鼠心肌缺血/再灌注損傷后細胞凋亡及其機制研究[J]. 解麗君,張建新,李蘭芳. 中國應(yīng)用生理學(xué)雜志. 2008(01)
[9]氧化應(yīng)激的病理生理作用[J]. 光吉博則,谷仁燁. 日本醫(yī)學(xué)介紹. 2007(04)
[10]Inhibitory effect of angiotensinⅡreceptor antagonist on hepatic stellate cell activation in non-alcoholic steatohepatitis[J]. Shiro Yokohama,Yoshihiko Tokusashi,Kimihide Nakamura,Yosui Tamaki,Satoshi Okamoto,Mituyoshi Okada,Kazunobu Aso,Takenao Hasegawa,Masaru Aoshima,Naoyuki Miyokawa,Masakazu Haneda,Masashi Yoneda. World Journal of Gastroenterology. 2006(02)
本文編號:3110985
【文章來源】:河北醫(yī)科大學(xué)河北省
【文章頁數(shù)】:131 頁
【學(xué)位級別】:博士
【部分圖文】:
肝臟組織病理變化(H&E染色)
圖 2 肝臟組織病理變化(Masson 染色)Fig. 2 Effects of fasudil on hepatic fibrosis as assessed by staining withMasson's trichrome.Representative microscopic photographs of liver stained with Masson's trichrome (400×magnification). Livers were obtained from the normal control (NC), untreated diabetic(DM), low-dose fasudil-treated (L-Fas), high-dose fasudil-treated (H-Fas), and captopril-treated (Cap) groups. Scale bar, 50 μm.#P < 0.05 vs. control group;##P < 0.01 vs. controlgroup; *P < 0.05 vs. DM group; **P < 0.01 vs. DM group; n = 10.
圖 3 大鼠肝臟組織 TGF- 1、MMP-9、TIMP-1、 NF-κB p65 及 IκB蛋白含量變化情況Fig. 3 TGF- 1, MMP-9, TIMP-1, NF-κB p65 and IκB protein levels in ratlivers treated with fasudil.Livers were obtained from the normal control (NC), untreated diabetic (DM), low-dosefasudil-treated (L-Fas), high-dose fasudil-treated (H-Fas), and captopril-treated (Cap)groups. Intensities of target proteins were standardized to that of β-actin. The proportionshowed in the histogram below the target bands. Results are expressed as the mean ±SEM.#P < 0.05 vs. control group;##P < 0.01 vs. control group; *P < 0.05 vs. DM group; **P <0.01 vs. DM group; n = 10.
【參考文獻】:
期刊論文
[1]影響2型糖尿病患者新發(fā)非酒精性脂肪肝相關(guān)因素分析[J]. 閻勁松,袁丹,李東升. 實用肝臟病雜志. 2016(02)
[2]法舒地爾對早期糖尿病腎病患者氧化應(yīng)激的影響[J]. 徐美榮,吳甘霖. 實用醫(yī)學(xué)雜志. 2015(08)
[3]法舒地爾抑制氧化應(yīng)激反應(yīng)減輕2型糖尿病大鼠心肌纖維化[J]. 李貴芝,周紅,房彩霞,張力輝,王綿,王瑞英. 基礎(chǔ)醫(yī)學(xué)與臨床. 2014(02)
[4]法舒地爾抗動脈粥樣硬化作用及其機制[J]. 武多嬌,張怡,高平進,朱鼎良. 中國臨床藥學(xué)雜志. 2010(02)
[5]大鼠免疫性與淤膽性肝纖維化發(fā)病機制比較[J]. 何瑤,陳白莉,楊榮萍,任明,曾志榮. 南方醫(yī)科大學(xué)學(xué)報. 2010(02)
[6]肝纖維化動物模型探討[J]. 周賢,劉翼,夏國棟,邵澤勇. 四川動物. 2010(01)
[7]Angiotensin-receptor blockers as therapy for mild-to-moderate hypertension-associated non-alcoholic steatohepatitis[J]. Eugen Florin Georgescu,Reanina Ionescu,Mihaela Niculescu,Laurentiu Mogoanta,Liliana Vancica. World Journal of Gastroenterology. 2009(08)
[8]異丙酚對離體大鼠心肌缺血/再灌注損傷后細胞凋亡及其機制研究[J]. 解麗君,張建新,李蘭芳. 中國應(yīng)用生理學(xué)雜志. 2008(01)
[9]氧化應(yīng)激的病理生理作用[J]. 光吉博則,谷仁燁. 日本醫(yī)學(xué)介紹. 2007(04)
[10]Inhibitory effect of angiotensinⅡreceptor antagonist on hepatic stellate cell activation in non-alcoholic steatohepatitis[J]. Shiro Yokohama,Yoshihiko Tokusashi,Kimihide Nakamura,Yosui Tamaki,Satoshi Okamoto,Mituyoshi Okada,Kazunobu Aso,Takenao Hasegawa,Masaru Aoshima,Naoyuki Miyokawa,Masakazu Haneda,Masashi Yoneda. World Journal of Gastroenterology. 2006(02)
本文編號:3110985
本文鏈接:http://sikaile.net/yixuelunwen/yiyaoxuelunwen/3110985.html
最近更新
教材專著