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1.上海中医药大学市中医临床医学院(上海 200071)
2.上海中医药大学附属市中医医院脑病科(上海 200071)
3.上海市杨浦区江浦社区卫生服务中心中医科(上海 200082)
廖婧彤,女,硕士研究生,主要从事中医药防治脑血管疾病及情志疾病的研究
蔡丽,副主任医师,硕士研究生导师; E-mail:cailiys@163.com
收稿日期:2024-05-15,
纸质出版日期:2025-02-10
移动端阅览
廖婧彤,李文涛,潘公益,等.神经复元方通过激活雄激素受体介导下游信号通路保护大鼠受损海马神经元的研究[J].上海中医药杂志,2025,59(2):80-85.
LIAO Jingtong,LI Wentao,PAN Gongyi,et al.Study on neuroprotective effects of Shenjing Fuyuan Decoction through androgen receptor‑mediated downstream signaling pathways in damaged hippocampal neurons in rats[J].Shanghai Journal of Traditional Chinese Medicine,2025,59(2):80-85.
廖婧彤,李文涛,潘公益,等.神经复元方通过激活雄激素受体介导下游信号通路保护大鼠受损海马神经元的研究[J].上海中医药杂志,2025,59(2):80-85. DOI: 10.16305/j.1007-1334.2025.z20240515005.
LIAO Jingtong,LI Wentao,PAN Gongyi,et al.Study on neuroprotective effects of Shenjing Fuyuan Decoction through androgen receptor‑mediated downstream signaling pathways in damaged hippocampal neurons in rats[J].Shanghai Journal of Traditional Chinese Medicine,2025,59(2):80-85. DOI: 10.16305/j.1007-1334.2025.z20240515005.
目的
2
探究神经复元方通过激活雄激素受体(AR)介导长链非编码RNA生长停滞特异性转录因子5(LncRNA GAS5)调控轴影响下游相关信号通路,从而治疗卒中后抑郁(PSD)的可能机制。
方法
2
取新生大鼠的海马组织,分离出原代大鼠海马神经元。对SD大鼠给予神经复元方灌胃处理,分离血清,获得空白血清和含药血清,检测确定空白血清和含药血清的最佳处理浓度。使用 100 μmol/L的过氧化氢(H
2
O
2
)对大鼠海马神经元细胞处理致损伤,得到损伤模型。分做2个子实验分析验证:①子实验Ⅰ分为损伤模型+空白血清组、损伤模型+AR激动剂组、损伤模型+含药血清组、损伤模型+含药血清+AR抑制剂组4组,利用Western blot法检测各组磷酸化蛋白激酶B(p-Akt)/蛋白激酶B(Akt)、磷酸化磷脂酰肌醇3-激酶(p-PI3K)/磷脂酰肌醇3-激酶(PI3K)、脑源性神经营养因子(BDNF)、酪氨酸激酶B受体(TrkB)的蛋白表达;②子实验Ⅱ分为空白血清组、损伤模型+空白血清组、损伤模型+含药血清组3组,利用RNA免疫沉淀(RIP)法检测AR蛋白与
LncRNA GAS5
基因的互作关系。
结果
2
①在p-Akt/Akt、p-PI3K/PI3K、BDNF、TrkB的蛋白表达方面,与损伤模型+空白血清组比较,损伤模型+AR激动剂组和损伤模型+含药血清组上述蛋白显著上升(
P
<
0.05);与损伤模型+含药血清组比较,损伤模型+含药血清+AR抑制剂组上述蛋白显著下降(
P
<
0.05)。②RIP结果显示,AR蛋白与
LncRNA GAS5
基因存在互作,
LncRNA GAS5
基因在调节AR的表达及其信号通路中扮演着重要的负向调控作用。
结论
2
神经复元方对H
2
O
2
诱导的SD大鼠海马神经元损伤有一定修复作用,其部分作用机制可能是神经复元方通过激活AR介导GAS5调控轴从而激活BDNF/TrkB/PI3K/Akt通路。
Objective
2
To investigate the potential mechanism by which Shenjing Fuyuan Decoction activates androgen receptor (AR)-mediated regulation of long non-coding RNA growth arrest-specific transcript 5 (LncRNA GAS5) to influence the downstream signaling pathways in the treatment of post-stroke depression (PSD).
Methods
2
Primary hippocampal neurons were isolated from neonatal rat hippocampal tissue. SD rats were treated with intragastric administration of Shenjing Fuyuan Decoction, and serum was collected to obtain blank serum and drug-containing serum. The optimal treatment concentrations of both blank and drug-containing serum were determined. Hippocampal neuron cells in rats were injured using 100 μmol/L hydrogen peroxide (H
2
O
2
) to establish an injury model. The experiment was divided into two sub-experiments. ①In sub-experiment Ⅰ, the four groups were injury model + blank serum group, injury model + AR agonist group, injury model + drug-containing serum group, and injury model + drug-containing serum + AR inhibitor group. Protein expression levels of phosphorylated Akt (p-Akt)/protein kinase B (Akt), phosphorylated phosphoinositide 3-kinase (p-PI3K)/phosphoinositide 3-kinase (PI3K), brain-derived neurotrophic factor (BDNF), and tropomyosin receptor kinase B (TrkB) were detected using Western blot. ②In sub-experiment Ⅱ, the three groups were blank serum group, injury model + blank serum group, and injury model + drug-containing serum group. RNA immunoprecipitation (RIP) was used to detect the interaction between AR protein and
LncRNA GAS5
gene.
Results
2
①The expressions of p-Akt/Akt, p-PI3K/PI3K, BDNF, and
TrkB proteins were significantly higher in the injury model + AR agonist group and the injury model + drug-containing serum group than that in the injury model + blank serum group (
P
<
0.05), and significantly lower in the injury model + drug-containing serum + AR inhibitor group than that in the injury model + drug-containing serum group (
P
<
0.05). ②RIP results showed that AR protein interacted with the
LncRNA GAS5
gene, indicating that
LncRNA GAS5
plays an important negative regulatory role in the expression of AR and its signaling pathway.
Conclusion
2
Shenjing Fuyuan Decoction has a protective effect on H
2
O
2
-induced hippocampal neuron injury in SD rats, with part of its mechanism of action likely involving the activation of the AR-mediated GAS5 regulatory axis, which in turn activates the BDNF/TrkB/PI3K/Akt signaling pathway.
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