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第44卷第3期 胡 君,戴 丽,陈 霞,等. 神经肽Y/Y1受体激活β⁃catenin信号通路介导心肌细胞损伤[J].
2024年3月 南京医科大学学报(自然科学版),2024,44(3):313-321 ·317 ·
A
Control ISO BIBO3304+ISO BIBO3304
×200
HE staining
×400
B Control ISO BIBO3304+ISO BIBO3304
C ** D 5 4 **
ANP mRNA level 6 4 β⁃MHC 3
Relative 2 ## Relative mRNA level 2 ##
0 1 0
Control BIBO3304+ISO Control BIBO3304+ISO
ISO
BIBO3304
BIBO3304
ISO
A:Myocardial tissue of mice observed by HE staining. B:Myocardial tissue of mice observed by Masson staining(×200). C:Relative ANP mRNA
level in the myocardial tissue of mice detected by qPCR. D:Relative β⁃MHC mRNA level in the myocardial tissue of mice detected by qPCR. Compared
**
##
with the control group,P < 0.01;compared with the ISO group,P < 0.01(n=4).
图2 BIBO3304缓解ISO诱导的心肌损伤和纤维化
Figure 2 BIBO3304 alleviated ISO⁃induced myocardial injury and fibrosis
A B C
6 3 **
** β⁃MHC ** ( % ) 150 **
Relative ANP mRNA level 4 2 ** Relative mRNA level 2 1 Cell viability 100 **
50
0 0 0
Control Pro34 ] ⁃NPY Pro34 ] ⁃NPY Control Pro34 ] ⁃NPY Pro34 ] ⁃NPY Control Pro34 ] ⁃NPY Pro34 ] ⁃NPY
( 100 nmol/L)
( 100 nmol/L)
( 100 nmol/L)
( 10 nmol/L)
( 10 nmol/L)
( 10 nmol/L)
[ Leu31, [ Leu31, [ Leu31, [ Leu31, [ Leu31, [ Leu31,
A:Relative ANP mRNA level detected by qPCR in H9C2 cells. B:Relative β⁃MHC mRNA level detected by q⁃PCR in H9C2 cells. C:Cell viability
**
measured by CCK⁃8. Compared with the control group,P < 0.01(n=4).
图3 [Leu31,Pro34]⁃NPY诱导H9C2细胞损伤
Figure 3 [Leu31,Pro34]⁃NPY induced injury of H9C2 cells
制[Leu31,Pro34]⁃NPY 诱导的 H9C2 细胞心肌肥大
基因 ANP、β⁃MHC mRNA 表达上升(P < 0.05)和细 3 讨 论
胞面积增加(P < 0.01),缓解心肌细胞活力下降 本研究构建 ISO 诱导的小鼠心肌损伤模型和
(P < 0.01,图6)。 [Leu31,Pro34]⁃NPY 诱导的 H9C2 细胞模型,探索