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1.福建中医药大学 附属人民医院,福州 350004
2.福建农林大学,福州 350002
3.福建省医学科学研究院 福建省医学测试重点实验室,福州 350001
何丽君,主任中药师,从事临床方剂与中药相关合理用药分析研究,E-mail:helj0909@163.com
收稿日期:2022-05-04,
网络出版日期:2022-08-04,
纸质出版日期:2022-11-05
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何丽君,杨彬彬,卓实等.淫羊藿苷通过调节RhoA/ROCK信号通路改善AD神经元和树突损伤的机制[J].中国实验方剂学杂志,2022,28(21):90-97.
HE Lijun,YANG Binbin,ZHUO Shi,et al.Mechanism of Icariin in Ameliorating Neuronal and Dendritic Damage in Alzheimer's Disease by Regulating RhoA/ROCK Signaling Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(21):90-97.
何丽君,杨彬彬,卓实等.淫羊藿苷通过调节RhoA/ROCK信号通路改善AD神经元和树突损伤的机制[J].中国实验方剂学杂志,2022,28(21):90-97. DOI: 10.13422/j.cnki.syfjx.20221943.
HE Lijun,YANG Binbin,ZHUO Shi,et al.Mechanism of Icariin in Ameliorating Neuronal and Dendritic Damage in Alzheimer's Disease by Regulating RhoA/ROCK Signaling Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(21):90-97. DOI: 10.13422/j.cnki.syfjx.20221943.
目的
2
观察淫羊藿苷对阿尔茨海默病(AD)模型大鼠Ras同源基因家族成员A(RhoA)/Rho相关卷曲螺旋形成蛋白激酶(ROCK)信号通路的作用,并探讨其改善神经元和树突损伤的作用机制。
方法
2
通过对大鼠双侧侧脑室注射
β
样淀粉蛋白1-42(A
β
1-42
,
2.5 g·L
-1
)建立AD模型,并将大鼠分为模型组,淫羊藿苷低、中、高剂量组(0.03、0.06、0.09 g·kg
-1
),另设空白组。空白组和模型组按10 mL·kg
-1
的剂量灌胃等体积的生理盐水。采用Morris水迷宫评估大鼠的认知功能。采用尼氏染色观察大鼠海马CA1区病理形态。采用高尔基染色观察大鼠海马CA1区树突棘密度和树突长度。采用实时荧光定量聚合酶链式反应(Real-time PCR)检测大鼠海马中肿瘤坏死因子-
α
(TNF-
α
)、白细胞介素-1
β
(IL-1
β
)、白细胞介素-6(IL-6)、RhoA、ROCK1和ROCK2的mRNA表达水平。采用蛋白免疫印迹法(Western blot)检测大鼠海马中TNF-
α
、IL-1
β
、IL-6、RhoA、ROCK1和ROCK2的蛋白表达水平。
结果
2
与空白组比较,模型组大鼠逃避潜伏期显著增加(
P
<
0.01),穿越平台次数和目标象限驻留时间显著减少(
P
<
0.01)。与模型组比较,淫羊藿苷中、高剂量组大鼠逃避潜伏期减少(
P
<
0.05,
P
<
0.01),穿越平台次数和目标象限驻留时间增加(
P
<
0.05,
P
<
0.01)。与空白组比较,模型组大鼠海马CA1区神经元数量、树突棘密度和树突长度显著减少(
P
<
0.01)。与模型组比较,淫羊藿苷中、高剂量组大鼠海马CA1区神经元数量、树突棘密度和树突长度增加(
P
<
0.05,
P
<
0.01)。与空白组比较,模型组大鼠海马中TNF-
α
、IL-1
β
、IL-6、RhoA、ROCK1、ROCK2的mRNA和蛋白表达水平显著升高(
P
<
0.01)。与模型组比较,淫羊藿苷中、高剂量组大鼠海马中TNF-
α
、IL-1
β
、IL-6、RhoA、ROCK1、ROCK2的mRNA和蛋白表达水平下降(
P
<
0.05,
P
<
0.01)。
结论
2
淫羊藿苷改善AD认知功能、神经元和树突损伤可能与抑制RhoA/ROCK信号通路相关。
Objective
2
To observe the effect of icariin on the recombinant Ras homolog family member A (RhoA)/Rho-associated coiled-coil forming protein kinase (ROCK) signaling pathway in rats with Alzheimer's disease (AD), and to explore the mechanism of icariin in ameliorating the neuronal and dendritic damage.
Method
2
The
β
-amyloid 1-42 (A
β
1-42
, 2.5 g·L
-1
) was used to induce AD in rats via lateral ventricle injection, and the rats were divided into a model group, a low-dose icariin group (0.03 g·kg
-1
), a middle-dose icariin group (0.06 g·kg
-1
), a high-dose icariin group (0.09 g·kg
-1
), and a control group. The control group and the model group were given an equal volume of normal saline at a dose of 10 mL·kg
-1
. The cognitive function of rats was assessed by the Morris water maze. The pathological morphology of the rat hippocampal CA1 area was observed by Nissl staining. Dendritic spine density and dendritic length in the CA1 region of the hippocampus were observed by Golgi-Cox staining. Real-time quantitative polymerase chain reaction (Real-time PCR) was used to detect the mRNA expression levels of tumor necrosis factor-
α
(TNF-
α
), interleukin (IL)-1
β
, IL-6, RhoA, ROCK1, and ROCK2 in the hippocampus. Western blot assay was used to detect the protein expression levels of TNF-
α
, IL-1
β
, IL-6, RhoA, ROCK1, and ROCK2 in the hippocampus.
Result
2
As compared with the control group, the escape latency of the rats in the model group was increased (
P
<
0.01), while the number of crossing the platform and the dwelling time in the target quadrant were decreased (
P
<
0.01). As compared with the model group, the escape latency of the rats in the middle and high-dose icariin groups was decreased (
P
<
0.05,
P
<
0.01), while the number of crossing the platform and the dwelling time in the target quadrant were increased (
P
<
0.05,
P
<
0.01). As compared with the control group, the number of neurons, dendritic spine density, and dendritic length in the hippocampal CA1 area of the rats in the model group were decreased (
P
<
0.01). As compared with the model group, the number of neurons, dendritic spine density, and dendritic length in the hippocampus of the rats in the middle and high-dose icariin groups were increased (
P
<
0.05,
P
<
0.01). As compared with the control group, the mRNA and protein expression levels of TNF-
α
, IL-1
β
, IL-6, RhoA, ROCK1, and ROCK2 in the hippocampus of the rats in the model group were increased (
P
<
0.01). As compared with the model group, the mRNA and protein expression levels of TNF-
α
, IL-1
β
, IL-6, RhoA, ROCK1, and ROCK2 in the hippocampus of the rats in the middle and high-dose icariin groups were decreased (
P
<
0.05,
P
<
0.01).
Conclusion
2
Icariin improves cognitive function and neuronal and dendritic damage in AD by inhibiting the RhoA/ROCK signaling pathway.
JIA L , DU Y , CHU L , et al . Prevalence,risk factors,and management of dementia and mild cognitive impairment in adults aged 60 years or older in China:A cross-sectional study [J]. Lancet Public Health , 2020 , 5 ( 12 ): e661 - e671 .
KHAN S , BARVE K H , KUMAR M S . Recent advancements in pathogenesis,diagnostics and treatment of Alzheimer's disease [J]. Curr Neuropharmacol , 2020 , 18 ( 11 ): 1106 - 1125 .
ATHAR T , AL BALUSHI K , KHAN S A . Recent advances on drug development and emerging therapeutic agents for Alzheimer's disease [J]. Mol Biol Rep , 2021 , 48 ( 7 ): 5629 - 5645 .
时晶 , 倪敬年 , 司芸芳 , 等 . 补肾法治疗阿尔茨海默病的系统评价 [J]. 天津中医药大学学报 , 2021 , 40 ( 2 ): 211 - 217 .
张丁阳 , 解紫从 , 华茜 . 补肾益智方药治疗阿尔茨海默病疗效的系统评价与Meta分析 [J]. 世界中医药 , 2021 , 16 ( 13 ): 1990 - 1997 .
邓敏贞 , 钟晓琴 , 彭丽霖 , 等 . 阿尔茨海默病的病理机制及中医药防治机制研究进展 [J]. 广州中医药大学学报 , 2022 , 39 ( 4 ): 984 - 990 .
何丽君 , 江金井 , 陈豪 , 等 . 淫羊藿药理作用和临床应用的研究进展 [J]. 中医临床研究 , 2020 , 12 ( 2 ): 17 - 20 .
CHUANG Y , VAN I , ZHAO Y , et al . Icariin ameliorate Alzheimer's disease by influencing SIRT1 and inhibiting A β cascade pathogenesis [J]. J Chem Neuroanat , 2021 , 117 : 102014 .
JIANG X , CHEN L L , LAN Z , et al . Icariin ameliorates amyloid pathologies by maintaining homeostasis of autophagic systems in A β 1-42 -injected rats [J]. Neurochem Res , 2019 , 44 ( 12 ): 2708 - 2722 .
SHENG C , XU P , ZHOU K , et al . Icariin attenuates synaptic and cognitive deficits in an A β 1-42 -induced rat model of Alzheimer's disease [J]. Biomed Res Int , 2017 , 2017 : 7464872 .
CORNELL J , SALINAS S , HUANG H Y , et al . Microglia regulation of synaptic plasticity and learning and memory [J]. Neural Regen Res , 2022 , 17 ( 4 ): 705 - 716 .
WANG P , WANG F , NI L , et al . Targeting redox-altered plasticity to reactivate synaptic function:A novel therapeutic strategy for cognitive disorder [J]. Acta Pharm Sin B , 2021 , 11 ( 3 ): 599 - 608 .
CAI R , WANG Y , HUANG Z , et al . Role of RhoA/ROCK signaling in Alzheimer's disease [J]. Behav Brain Res , 2021 , 414 : 113481 .
PARK J C , BAIK S H , HAN S H , et al . Annexin A1 restores A β 1-42 -induced blood-brain barrier disruption through the inhibition of RhoA-ROCK signaling pathway [J]. Aging Cell , 2017 , 16 ( 1 ): 149 - 161 .
刘忠锦 , 张春梅 , 张羽镝 , 等 . 鹿茸多肽对APP/PS1双转基因小鼠Rho/ROCK通路的影响 [J]. 解剖学报 , 2022 , 53 ( 2 ): 190 - 195
明玲 , 巴智胜 , 黄南渠 , 等 . 淫羊藿主要活性成分对阿尔茨海默病中炎症反应的作用及机制的研究进展 [J]. 中药药理与临床 , 2021 , 37 ( 6 ): 227 - 231 .
李莹 , 黄南渠 , 冯飞 , 等 . 淫羊藿苷在阿尔茨海默病中的神经保护作用及机制研究进展 [J]. 中药药理与临床 , 2019 , 35 ( 1 ): 192 - 196,27 .
CUESTAS TORRES D M , CARDENAS F P . Synaptic plasticity in Alzheimer's disease and healthy aging [J]. Rev Neurosci , 2020 , 31 ( 3 ): 245 - 268 .
MERCERÓN-MARTÍNEZ D , IBACETA-GONZÁLEZ C , SALAZAR C , et al . Alzheimer's disease,neural plasticity,and functional recovery [J]. J Alzheimers Dis , 2021 , 82 ( s1 ): s37 - s50 .
谭雪 , 高莉 , 任佳 , 等 . 突触可塑性对阿尔茨海默病影响的研究进展 [J]. 中国医药导报 , 2019 , 16 ( 9 ): 52 - 55 .
王新斌 , 戴恩来 , 薛国忠 , 等 . 基于RhoA/ROCK通路探讨淫羊藿苷对肾病综合征大鼠的保护机制 [J]. 中国实验方剂学杂志 , 2020 , 26 ( 11 ): 78 - 84 .
AGUILAR B J , ZHU Y , LU Q . Rho GTPases as therapeutic targets in Alzheimer's disease [J]. Alzheimers Res Ther , 2017 , 9 ( 1 ): 97 - 114 .
张天弼 , 张云龙 , 胡警文 , 等 . Rho/ROCK2通路在阿尔茨海默病病理进程中的重要作用 [J]. 国际药学研究杂志 , 2016 , 43 ( 1 ): 33 - 38 .
ZHANG X , YE P , WANG D , et al . Involvement of RhoA/ROCK Signaling in A β -induced chemotaxis,cytotoxicity and inflammatory response of microglial BV2 cells [J]. Cell Mol Neurobiol , 2019 , 39 ( 5 ): 637 - 650 .
XIANG X , WANG X , JIN S , et al . Activation of GPR55 attenuates cognitive impairment and neurotoxicity in a mouse model of Alzheimer's disease induced by A β 1-42 through inhibiting RhoA/ROCK2 pathway [J]. Prog Neuropsychopharmacol Biol Psychiatry , 2022 , 112 : 110423 .
GUILER W , KOEHLER A , BOYKIN C , et al . Pharmacological modulators of small GTPases of Rho family in neurodegenerative diseases [J]. Front Cell Neurosci , 2021 , 15 : 661612 .
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