» Articles » PMID: 32698791

MiR-221/SIRT1/Nrf2 Signal Axis Regulates High Glucose Induced Apoptosis in Human Retinal Microvascular Endothelial Cells

Overview
Journal BMC Ophthalmol
Publisher Biomed Central
Specialty Ophthalmology
Date 2020 Jul 24
PMID 32698791
Citations 14
Authors
Affiliations
Soon will be listed here.
Abstract

Background: Diabetic retinopathy (DR) is a serious symptom associated with diabetes and could cause much suffer to patients. MiR-221, SIRT1 and Nrf2 were associated with apoptosis and proliferation and their expression were altered in DR patients. However, their roles and regulatory mechanisms in human retinal microvascular endothelial cells (hRMEC) were not clear.

Methods: Expression of mRNA was detected by qRT-PCR. Protein expression was detected by Western blot. Interaction between miR-221 and SIRT1 was predicted by bioinformatics analysis and validated by dual-luciferase reporter assay. We analyzed the viability and apoptosis of hRMEC by MTT assay and FACS assay, respectively.

Results: High glucose (HG) treatment enhanced expression of miR-221 and inhibited expression of SIRT1 and Nrf2. MiR-221 overexpression promoted apoptosis under HG condition. Moreover, miR-221 directly interacted with mRNA of SIRT1 and inhibited SIRT1 expression in hRMEC, through which miR-221 inhibited Nrf2 pathway and induced apoptosis of hRMEC.

Conclusion: Our data demonstrated that miR-221/SIRT1/Nrf2 signal axis could promote apoptosis in hRMEC under HG conditions. This finding could provide theoretical support for future studies and may contribute to development of new treatment options to retard the process of DR development.

Citing Articles

From Microcirculation to Aging-Related Diseases: A Focus on Endothelial SIRT1.

Law M, Wang P, Zhou Z, Wang Y Pharmaceuticals (Basel). 2024; 17(11).

PMID: 39598406 PMC: 11597311. DOI: 10.3390/ph17111495.


Mechanistic and therapeutic perspectives of non-coding RNA-modulated apoptotic signaling in diabetic retinopathy.

Wu Q, Liu C, Shu X, Duan L Cell Biol Toxicol. 2024; 40(1):53.

PMID: 38970639 PMC: 11227466. DOI: 10.1007/s10565-024-09896-z.


Classical and Innovative Evidence for Therapeutic Strategies in Retinal Dysfunctions.

Caruso L, Fields M, Rimondi E, Zauli G, Longo G, Marcuzzi A Int J Mol Sci. 2024; 25(4).

PMID: 38396799 PMC: 10889839. DOI: 10.3390/ijms25042124.


Dysregulation of histone deacetylases in ocular diseases.

Jun J, Kim J, Palomera L, Jo D Arch Pharm Res. 2023; 47(1):20-39.

PMID: 38151648 DOI: 10.1007/s12272-023-01482-x.


Research progress on the pathogenesis of diabetic retinopathy.

Li H, Liu X, Zhong H, Fang J, Li X, Shi R BMC Ophthalmol. 2023; 23(1):372.

PMID: 37697295 PMC: 10494348. DOI: 10.1186/s12886-023-03118-6.


References
1.
Mazzeo A, Lopatina T, Gai C, Trento M, Porta M, Beltramo E . Functional analysis of miR-21-3p, miR-30b-5p and miR-150-5p shuttled by extracellular vesicles from diabetic subjects reveals their association with diabetic retinopathy. Exp Eye Res. 2019; 184:56-63. DOI: 10.1016/j.exer.2019.04.015. View

2.
Mishra M, Duraisamy A, Kowluru R . Sirt1: A Guardian of the Development of Diabetic Retinopathy. Diabetes. 2018; 67(4):745-754. PMC: 5860853. DOI: 10.2337/db17-0996. View

3.
He M, Long P, Yan W, Chen T, Guo L, Zhang Z . ALDH2 attenuates early-stage STZ-induced aged diabetic rats retinas damage via Sirt1/Nrf2 pathway. Life Sci. 2018; 215:227-235. DOI: 10.1016/j.lfs.2018.10.019. View

4.
Wang T, Jiang L, Wei X, Dong Z, Liu B, Zhao J . Inhibition of miR-221 alleviates LPS-induced acute lung injury via inactivation of SOCS1/NF-κB signaling pathway. Cell Cycle. 2019; 18(16):1893-1907. PMC: 6681774. DOI: 10.1080/15384101.2019.1632136. View

5.
Antosik K, Borowiec M . Genetic Factors of Diabetes. Arch Immunol Ther Exp (Warsz). 2017; 64(Suppl 1):157-160. DOI: 10.1007/s00005-016-0432-8. View