10.6084/M9.FIGSHARE.13134834.V1
Yingying Xu
Yingying
Xu
Haiyang Fang
Haiyang
Fang
Qin Xu
Qin
Xu
Congcong Xu
Congcong
Xu
Lu Yang
Lu
Yang
Chahua Huang
Chahua
Huang
LncRNA GAS5 inhibits NLRP3 inflammasome activation-mediated pyroptosis in diabetic cardiomyopathy by targeting miR-34b-3p/AHR
<p>Long noncoding RNA GAS5 is down-regulated in cardiomyocytes in diabetic cardiomyopathy (DCM). Here, we studied the involvement of GAS5 in DCM by analyzing its expression in DCM mouse model and cardiac muscle cell line (HL-1 cells). Compared with normal mice, GAS5 was severely down-regulated in heart tissues of DCM mice. GAS5 overexpression improved cardiac function and myocardial hypertrophy in DCM mice. In addition, the expression of NLRP3, caspase-1, Pro-caspase-1, IL-1β and IL-18 were increased in heart tissues of DCM mice and high glucose-treated HL-1 cells, which was repressed by GAS5 up-regulation. GAS5 overexpression suppressed caspase-1 activity, LDH release and the levels of IL-1β, IL-18 in the high glucose-treated HL-1 cells. Moreover, GAS5 regulated AHR expression by sponging miR-34b-3p. Furthermore, GAS5 overexpression suppressed NLRP3 inflammasome activation-mediated pyroptosis by regulating miR-34b-3p/AHR axis. In summary, our study demonstrates that GAS5 acts as a competing endogenous RNA to enhance AHR expression by sponging miR-34b-3p, which consequently represses NLRP3 inflammasome activation-mediated pyroptosis to improve DCM. Thus, our data provide a novel lncRNA GAS5 that could be a valuable target for DCM treatment.</p>
Biochemistry
Cell Biology
Genetics
Molecular Biology
Physiology
Pharmacology
Chemical Sciences not elsewhere classified
Immunology
Biological Sciences not elsewhere classified
Developmental Biology
Cancer
Computational Biology
Taylor & Francis
2020
2020-10-23
2024-02-06
Dataset
1317248 Bytes
10.6084/m9.figshare.13134834
10.1080/15384101.2020.1831245
CC BY 4.0