常春藤素皂苷元介导Axin2/AREG轴抑制炎症缓解肾损伤
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1.西南医科大学附属中医医院中西医结合研究中心;2.西南医科大学附属中医医院肾病科;3.西南医科大学附属中医医院泌尿外科

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] 国自然科学基金(No:82104665);四川省科技计划资助Sichuan Science and Technology Program(No:2022YFS0621)。[第一作者] 徐玲慧,在读硕士,中级,从事急慢性肾病及纤维化治疗,Tel:18090353581,E-mail:1468437996@qq.com[通讯作者] *邹远霞,在读博士,中级,从事中西医结合基础研究,Tel:17380858341,E-mail:zouyxped@swmu.edu.cn ,梁颖兰2,粟宏伟3,李健春1,王丽1,邹远霞1, 4*


Inhibitory effects of hederagenin on renal injury and inflammation in AKI mice by inhibiting Axin2/AREG
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1.Research Center of Integrated Chinese and Western Medicine,The Affiliated Traditional Chinese Medicine Hospital,Southwest Medical University;2.Department of Nephrology,The Affiliated Traditional Chinese Medicine Hospital,Southwest Medical University;3.Department of Urology,The Affiliated Traditional Chinese Medicine Hospital,Southwest Medical University;4.Children'5.'6.s Diagnosis and Treatment Center,The Affiliated Traditional Chinese Medicine Hospital,Southwest Medical University,Lu Zhou

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National Natural Science Foundation;Sichuan Science and Technology Program

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    摘要:

    目的 探讨常春藤素皂苷元(H hederagenin,HDG)对顺铂诱导的急性肾损伤(acute kidney injury, ,AKI)小鼠的预防作用及潜在机制。方法 将24只雄性C57BL/6小鼠随机分为对照组、AKI模型组、HDG低剂量给药组、HDG高剂量给药组,每组各6只。通过腹腔注射顺铂20 mg/kg建立小鼠AKI模型,低剂量给药组及高剂量组分别给予20 mg/kg、40 mg/kg灌胃HDG,3天后 d后进行取材。收集小鼠肾脏进行苏木素-伊红(hematoxylin-eosin, HE)及糖原染色(periodic acid schiff, PAS )染色评估肾脏病理情况,收集血清检测肌酐、尿素氮的变化,蛋白免疫印迹法检测p-P65、P65、IL-6、TNF-ɑ、IL-1β等炎症相关蛋白的表达。体外使用顺铂 200 ng/mlL 刺激TCMK1(肾小管上皮细胞) 建立炎症细胞模型,设置空白组、Cis模型组(200 ng/ml)、HDG低剂量组(Cis 200 ng/ml + 10 μg/ml)、HDG高剂量组(Cis 200 ng/ml + HDG 30 μg/ml) 、Axin2 过表达组(Cis 200 ng/ml+ Axin2 overexpression)、HDG+Axin2 过表达组(Cis 200 ng/ml + HDG 30 μg/ml + Axin2 overexpression)空白组、Cis模型组、常春藤素皂苷元低剂量干预组(10 μg/ml)、常春藤素皂苷元高剂量干预组(30 μg/ml),Axin2过表达组(Cis+HDG+Axin2-OE),收取细胞蛋白后检测p-P65、P65、IL-6、TNF-ɑ、IL-1β、Axin2、AREG的表达变化。结果 与对照组相比,AKI模型组小鼠血清肌酐、尿素氮水平明显升高,肾组织病理损伤严重,炎症相关蛋白p-P65、IL-6、TNF-ɑ、IL-1β的表达明显升高,Axin2和AREG的表达升高(P ﹤ 0.05);与模型组相比,HDG不同剂量组血清肌酐、尿素氮均有不能同程度的降低,肾组织病理损伤得到明显缓解,p-P65、IL-6、TNF-ɑ、IL-1β、Axin2、AREG的蛋白表达水平显著降低(P ﹤ 0.05);与HDG给药组相比,Axin2过表达组削弱了HDG对AKI的保护作用(P ﹤ 0.05)。结论 HDG可能通过抑制Axin2/AREG轴预防AKI小鼠的肾脏损伤及炎症。

    Abstract:

    Objective To investigate the preventive effect of Hederageninhederagenin (HDG) on cisplatin (Cis)-induced acute kidney injury (AKI) in mice and its potential mechanism. Methods 24 male C57BL/6 mice were randomly divided into a control group, AKI model group, HDG low-dose HDG group, and HDG high-dose HDG group, with 6 six mice in each group. Mice A mouse acute kidney injury (AKI) model was established by intraperitoneal injection of 20mg20 mg/kg cisplatinCis. The low-dose group and high-dose groups were given 20 mg/kg and , 40 mg/kg HDG by intragastric administration, respectively, and samples were collected 3 days later. The kidneykidneys of the mice waswere collected for hematoxylin-eosin (HE) and periodic-acid-schiff (PAS) staining to evaluate the kidney pathology, theand serum was collected to detect the changes ofin creatinine (Scr) and urea nitrogen (BUN), and the). The expression of p-P65, P65, IL-6, TNF-α, IL-1β, and other inflammatory -related proteins was detected by WesternWestern Blot. A TCMK1 (renal tubular epithelial cell) inflammatory cell model was established by Cis (200 ng/ml) stimulation in vitro. Blank group, Cis model group, HDG low-dose group, HDG high-dose group, Axin2 overexpression group, HDG+Axin2 overexpression groupA Blank group, Cis model group, HDG low-dose group (10 μμg/ml)), and HDG high-dose group (30 μμg/ml) were set up. In the Axin2 -overexpression group (Cis+HDG+Axin2-OE), the expression changes of p-P65, P65, IL-6, TNF-α, IL-1β, Axin2, and AREG werewas detected after receivingamong total cell proteins. Results Compared withto the control group, the model group mice’s Scr and BUN levels of mice in model group were significantly increased in AKI model group mice,; their renal tissue pathological damage was more serious, the expressions ; their expression of inflammation-related proteins p-P65, IL-6, TNF-α, and IL-1β were significantly increased,; and the expressionstheir expression of Axin2 and AREG werewas increased (P < 0.05). Compared withto the model group, Scr and BUN in the low- and high -dose HDG group groups’ Scr and BUN were not reduced to the same extent, ; their kidney tissue pathological damage of kidney tissue was significantly alleviated,; and their protein expression levels of p-P65, IL-6, TNF-α, IL-1β, Axin2, and AREG were significantly decreased (P < 0.05). Compared to HDG group, Axin2 overexpression group weakened the The protective effect of HDG on AKI was weaker in the Axin2-overexpression group than in the HDG groups (P < 0.05). Conclusion HDG may prevent kidney injury and inflammation in AKI mice by inhibiting the Axin2/AREG axis.

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  • 收稿日期:2024-07-29
  • 最后修改日期:2025-01-15
  • 录用日期:2025-01-22
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