Neuregulin-1 Protects Neuronal Cells Against Damage due to CoCl2-Induced Hypoxia by Suppressing Hypoxia-Inducible Factor-1α and P53 in SH-SY5Y Cells.

Abstract:

PURPOSE:Hypoxia-mediated neurotoxicity contributes to various neurodegenerative disorders, including Alzheimer disease. Neuregulin-1 (NRG1) plays an important role in the development and plasticity of the brain. The aim of the present study was to investigate the neuroprotective effect and the regulating hypoxic inducible factor of NRG1 in cobalt chloride (CoCl2) induced hypoxia. METHODS:Hypoxia was induced in SH-SY5Y cells by CoCl2 treatment. SH-SY5Y cells were pretreated with NRG1 and then treated with CoCl2. Western blotting, immunocytochemistry, and lactate dehydrogenase (LDH) release assays were performed to examine neuroprotective properties of NRG1 in SH-SY5Y cells. RESULTS:Our data showed that CoCl2 induced cytotoxicity and changes of hypoxia-inducible factor-1α (HIF-1α) and p53 expression in SH-SY5Y cells. However, pretreatment with NRG1 inhibited CoCl2-induced accumulation of HIF-1α and p53 stability. In addition, NRG1 significantly attenuated cell death of SH-SY5Y induced by CoCl2. CONCLUSION:NRG1 can regulate HIF-1α and p53 to protect neurons against hypoxic damage.

journal_name

Int Neurourol J

authors

Yoo SY,Yoo JY,Kim HB,Baik TK,Lee JH,Woo RS

doi

10.5213/inj.1938190.095

subject

Has Abstract

pub_date

2019-11-01 00:00:00

pages

S111-118

issue

Suppl 2

eissn

2093-4777

issn

2093-6931

pii

inj.1938190.095

journal_volume

23

pub_type

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