WANG Shu-han,YANG Cui-zhu,ZHANG Run-heng,et al.Astragalin Inhibits Apoptosis of Cerebral Cortex Neurons in APP/PS1 Mice[J].Journal of Sun Yat-sen University(Medical Sciences),2023,44(06):983-990.
WANG Shu-han,YANG Cui-zhu,ZHANG Run-heng,et al.Astragalin Inhibits Apoptosis of Cerebral Cortex Neurons in APP/PS1 Mice[J].Journal of Sun Yat-sen University(Medical Sciences),2023,44(06):983-990. DOI: 10.13471/j.cnki.j.sun.yat-sen.univ(med.sci).2023.0612.
Astragalin Inhibits Apoptosis of Cerebral Cortex Neurons in APP/PS1 Mice
的表达。Western blot 结果进一步证实,40 mg/kg AST及20 mg/kg DNP均可下调APP/PS1小鼠大脑皮质内神经元
Bax
(
P
<
0.05,
P
<
0.05)、
Caspase9
(
P
<
0.005,
P
<
0.05)及
Caspase3
(
P
<
0.000 1,
P
<
0.000 1),上调
Bcl-2
(
P
<
0.05,
P
<
0.05)。
结论
2
AST能够抑制APP/PS1小鼠大脑皮质神经元凋亡。
Abstract
Objective
2
To investigate the effect of Astragalin (AST) on apoptosis of cerebral cortex neurons in APP/PS1 transgenic mice.
Methods
2
Eighteen six-month-old male APP/PS1 transgenic mice were randomly divided into APP/PS1 group, APP/PS1+ 40 mg/kg AST group and APP/PS1+ 20 mg/kg Donepezil (DNP) group, with six mice in each group. At the same time, six male C57BL/6 mice were selected as the normal control group. After intraperitoneal injection of AST once a day and continuous administration for one month, we used Tunel staining to detect the apoptosis of neurons in the cerebral cortex of APP/PS1 mice; immunofluorescent staining to examine the expression of apoptosis-related proteins
Bax
,
Bcl-2
,
Caspase9
and
Cleaved-Caspase3
in the cerebral cortex neurons of APP/PS1 mice; Western blot method to evaluate the changes of the expression of
Bax
,
Bcl-2
,
Caspase9
and
Caspase3
.
Results
2
Tunel staining showed that 40 mg/kg AST and 20 mg/kg DNP both reduced the apoptosis of neurons in the cerebral cortex of APP/PS1 mice, AST with more significant inhibition effect. Immunofluorescent staining revealed that 40 mg/kg AST and 20 mg/kg DNP both inhibited the expression of
Bax
,
Caspase9
, and
Cleaved-Caspase3
,
and icreased the expression of
Bcl-2
in the cerebral cortex neurons of APP/PS1 mice. Western blot results further confirmed that 40 mg/kg AST and 20 mg/kg DNP both down-regulated the expression of
Bax
(
P
<
0.05,
P
<
0.05),
Caspase9
(
P
<
0.005,
P
<
0.05) and
Caspase3
(
P
<
0.0001,
P
<
0.0001) , and up-regulated the expresstion of
Bcl-2
(
P
<
0.05,
P
<
0.05) in the cerebral cortex neurons of APP/PS1 mice.
Conclusions
2
AST can inhibit the apoptosis of cerebral cortex neurons in APP/PS1 mice.
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