Study on the protective effect of mitochonic acid-5 on septic acute kidney injury and the underlying mechanism

目的探讨线粒体酸5(mitochonic acid-5,MA-5)是否可以减轻脂多糖(lipopolysaccharide,LPS)诱导的脓毒症急性肾损伤以及可能的机制。方法细胞实验:将肾小管细胞分为正常组、MA-5(10 µmol/L)组、LPS(10 mg/L)刺激组和LPS+MA-5治疗组,通过细胞计数试剂盒8法评估细胞活力、流式细胞术评估细胞凋亡率;活性氧(reactive oxygen species,ROS)检测试剂盒检测ROS含量;三磷酸腺苷(adenosine triphosphate,ATP)检测试剂盒检测ATP水平;蛋白质印迹法(western blot,Wb)检测沉默信息...

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Main Authors: Li Peng-yan, Yan miao, Yang Ding-ping
Format: Article
Language:zho
Published: Editorial Department of Journal of Clinical Nephrology 2025-01-01
Series:Linchuang shenzangbing zazhi
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Online Access:http://www.lcszb.com/article/doi/10.3969/j.issn.1671-2390.2025.01.009
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author Li Peng-yan
Yan miao
Yang Ding-ping
author_facet Li Peng-yan
Yan miao
Yang Ding-ping
author_sort Li Peng-yan
collection DOAJ
description 目的探讨线粒体酸5(mitochonic acid-5,MA-5)是否可以减轻脂多糖(lipopolysaccharide,LPS)诱导的脓毒症急性肾损伤以及可能的机制。方法细胞实验:将肾小管细胞分为正常组、MA-5(10 µmol/L)组、LPS(10 mg/L)刺激组和LPS+MA-5治疗组,通过细胞计数试剂盒8法评估细胞活力、流式细胞术评估细胞凋亡率;活性氧(reactive oxygen species,ROS)检测试剂盒检测ROS含量;三磷酸腺苷(adenosine triphosphate,ATP)检测试剂盒检测ATP水平;蛋白质印迹法(western blot,Wb)检测沉默信息调节因子3(silence information regulator 3,SIRT3)蛋白、线粒体动力学相关蛋白[动力相关蛋白1(dynamin-related protein 1,DRP1)、视神经萎缩因子1(optic atrophy 1,OPA1)]和细胞凋亡相关蛋白[B细胞淋巴瘤2(B-cell lymphoma-2,Bcl-2)、Bcl-2相关X蛋白(Bcl-2 associated X protein,Bax)]的表达水平。动物实验:将32只成年雄性小鼠按照统计学中完全随机设计的方法分为正常组、MA-5组、LPS组和LPS+MA-5组,每组8只。LPS(10 mg/kg)腹腔注射建立脓毒症急性肾损伤模型,随后腹腔注射MA-5(50 mg/kg)治疗,24 h后进行取材。通过检测血肌酐(serum creatinine,Scr)、血尿素氮(blood urea nitrogen,BUN)评估肾功能;分别应用HE染色观察肾组织病理变化,透射电镜观察肾组织线粒体超微结构,二氢乙锭荧光染色观察肾组织ROS水平,免疫组化法检测肾组织中Sirt3表达水平以及Wb检测肾组织中Sirt3、OPA1、Drp1、Bcl-2和Bax蛋白的表达水平。结果在体外,相较于LPS(10 mg/L)刺激组,LPS+MA-5治疗组肾小管上皮细胞凋亡率[(9.21 ± 0.34)%比(16.49 ± 0.52)%]显著减少(P<0.05);凋亡相关蛋白Bcl-2[(0.972 ± 0.066)比(0.691 ± 0.051)]表达水平明显升高,Bax[(0.908 ± 0.560)比(1.210 ± 0.062)]表达水平明显降低(均P<0.05);Sirt3蛋白[(0.945 ± 0.049)比(0.744 ± 0.042)]表达水平明显升高(P<0.05);线粒体分裂蛋白Drp1[(0.819 ± 0.047)比(1.032 ± 0.054)]表达水平显著下降,融合蛋白OPA1[(0.846 ± 0.051)比(0.567 ± 0.060)]表达水平及细胞ATP[(4.82 ± 0.16)μmol/L比(3.47 ± 0.28)μmol/L]含量均显著增加(均P<0.05)。在体内,与LPS组小鼠比较,LPS+MA-5治疗组小鼠BUN[(29.05 ± 1.54)mmol/L比(49.05 ± 2.07)mmol/L]、Scr[(27.83 ± 1.39)μmol/L比(56.51 ± 2.21)μmol/L)]水平均降低(均P<0.05);凋亡相关蛋白Bcl-2[(0.862 ± 0.052)比(0.601 ± 0.048)]表达水平明显升高,Bax[(0.744 ± 0.051)比(1.047 ± 0.054)]表达水平明显降低(均P<0.05);Sirt3蛋白[(1.004 ± 0.053)比(0.685 ± 0.041)]表达水平明显升高(P<0.05);线粒体分裂蛋白Drp1[(0.716 ± 0.051)比(1.057 ± 0.055)]表达水平显著下降,融合蛋白OPA1[(0.838 ± 0.055)比(0.534 ± 0.046)]表达水平显著增加(均P<0.05),线粒体形态改善。结论MA-5减轻LPS诱导的脓毒症急性肾损伤,其作用机制可能与促进Sirt3表达,改善线粒体功能障碍和细胞凋亡有关。这表明MA-5可能是脓毒症急性肾损伤的一种有效的治疗策略。
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spelling doaj-art-fa5461a9f773492c8bf256c844ff26802025-01-17T08:29:52ZzhoEditorial Department of Journal of Clinical NephrologyLinchuang shenzangbing zazhi1671-23902025-01-01251596810.3969/j.issn.1671-2390.2025.01.0091671-2390(2025)01-0059-10Study on the protective effect of mitochonic acid-5 on septic acute kidney injury and the underlying mechanismLi Peng-yan0Yan miao1Yang Ding-ping2Department of Nephrology,Renmin Hospital of Wuhan University,Wuhan 430060,ChinaDepartment of Nephrology,Renmin Hospital of Wuhan University,Wuhan 430060,ChinaDepartment of Nephrology,Renmin Hospital of Wuhan University,Wuhan 430060,China目的探讨线粒体酸5(mitochonic acid-5,MA-5)是否可以减轻脂多糖(lipopolysaccharide,LPS)诱导的脓毒症急性肾损伤以及可能的机制。方法细胞实验:将肾小管细胞分为正常组、MA-5(10 µmol/L)组、LPS(10 mg/L)刺激组和LPS+MA-5治疗组,通过细胞计数试剂盒8法评估细胞活力、流式细胞术评估细胞凋亡率;活性氧(reactive oxygen species,ROS)检测试剂盒检测ROS含量;三磷酸腺苷(adenosine triphosphate,ATP)检测试剂盒检测ATP水平;蛋白质印迹法(western blot,Wb)检测沉默信息调节因子3(silence information regulator 3,SIRT3)蛋白、线粒体动力学相关蛋白[动力相关蛋白1(dynamin-related protein 1,DRP1)、视神经萎缩因子1(optic atrophy 1,OPA1)]和细胞凋亡相关蛋白[B细胞淋巴瘤2(B-cell lymphoma-2,Bcl-2)、Bcl-2相关X蛋白(Bcl-2 associated X protein,Bax)]的表达水平。动物实验:将32只成年雄性小鼠按照统计学中完全随机设计的方法分为正常组、MA-5组、LPS组和LPS+MA-5组,每组8只。LPS(10 mg/kg)腹腔注射建立脓毒症急性肾损伤模型,随后腹腔注射MA-5(50 mg/kg)治疗,24 h后进行取材。通过检测血肌酐(serum creatinine,Scr)、血尿素氮(blood urea nitrogen,BUN)评估肾功能;分别应用HE染色观察肾组织病理变化,透射电镜观察肾组织线粒体超微结构,二氢乙锭荧光染色观察肾组织ROS水平,免疫组化法检测肾组织中Sirt3表达水平以及Wb检测肾组织中Sirt3、OPA1、Drp1、Bcl-2和Bax蛋白的表达水平。结果在体外,相较于LPS(10 mg/L)刺激组,LPS+MA-5治疗组肾小管上皮细胞凋亡率[(9.21 ± 0.34)%比(16.49 ± 0.52)%]显著减少(P<0.05);凋亡相关蛋白Bcl-2[(0.972 ± 0.066)比(0.691 ± 0.051)]表达水平明显升高,Bax[(0.908 ± 0.560)比(1.210 ± 0.062)]表达水平明显降低(均P<0.05);Sirt3蛋白[(0.945 ± 0.049)比(0.744 ± 0.042)]表达水平明显升高(P<0.05);线粒体分裂蛋白Drp1[(0.819 ± 0.047)比(1.032 ± 0.054)]表达水平显著下降,融合蛋白OPA1[(0.846 ± 0.051)比(0.567 ± 0.060)]表达水平及细胞ATP[(4.82 ± 0.16)μmol/L比(3.47 ± 0.28)μmol/L]含量均显著增加(均P<0.05)。在体内,与LPS组小鼠比较,LPS+MA-5治疗组小鼠BUN[(29.05 ± 1.54)mmol/L比(49.05 ± 2.07)mmol/L]、Scr[(27.83 ± 1.39)μmol/L比(56.51 ± 2.21)μmol/L)]水平均降低(均P<0.05);凋亡相关蛋白Bcl-2[(0.862 ± 0.052)比(0.601 ± 0.048)]表达水平明显升高,Bax[(0.744 ± 0.051)比(1.047 ± 0.054)]表达水平明显降低(均P<0.05);Sirt3蛋白[(1.004 ± 0.053)比(0.685 ± 0.041)]表达水平明显升高(P<0.05);线粒体分裂蛋白Drp1[(0.716 ± 0.051)比(1.057 ± 0.055)]表达水平显著下降,融合蛋白OPA1[(0.838 ± 0.055)比(0.534 ± 0.046)]表达水平显著增加(均P<0.05),线粒体形态改善。结论MA-5减轻LPS诱导的脓毒症急性肾损伤,其作用机制可能与促进Sirt3表达,改善线粒体功能障碍和细胞凋亡有关。这表明MA-5可能是脓毒症急性肾损伤的一种有效的治疗策略。http://www.lcszb.com/article/doi/10.3969/j.issn.1671-2390.2025.01.009acute kidney injurymitochonic acid-5mitochondrial dynamicsoxidative stressapoptosis
spellingShingle Li Peng-yan
Yan miao
Yang Ding-ping
Study on the protective effect of mitochonic acid-5 on septic acute kidney injury and the underlying mechanism
Linchuang shenzangbing zazhi
acute kidney injury
mitochonic acid-5
mitochondrial dynamics
oxidative stress
apoptosis
title Study on the protective effect of mitochonic acid-5 on septic acute kidney injury and the underlying mechanism
title_full Study on the protective effect of mitochonic acid-5 on septic acute kidney injury and the underlying mechanism
title_fullStr Study on the protective effect of mitochonic acid-5 on septic acute kidney injury and the underlying mechanism
title_full_unstemmed Study on the protective effect of mitochonic acid-5 on septic acute kidney injury and the underlying mechanism
title_short Study on the protective effect of mitochonic acid-5 on septic acute kidney injury and the underlying mechanism
title_sort study on the protective effect of mitochonic acid 5 on septic acute kidney injury and the underlying mechanism
topic acute kidney injury
mitochonic acid-5
mitochondrial dynamics
oxidative stress
apoptosis
url http://www.lcszb.com/article/doi/10.3969/j.issn.1671-2390.2025.01.009
work_keys_str_mv AT lipengyan studyontheprotectiveeffectofmitochonicacid5onsepticacutekidneyinjuryandtheunderlyingmechanism
AT yanmiao studyontheprotectiveeffectofmitochonicacid5onsepticacutekidneyinjuryandtheunderlyingmechanism
AT yangdingping studyontheprotectiveeffectofmitochonicacid5onsepticacutekidneyinjuryandtheunderlyingmechanism