title: Quercetin promotes proliferation and differentiation of oligodendrocyte precursor cells after oxygen/glucose deprivation-induced injury.
abstract: The aim of this study was to investigate quercetin's (Qu) ability to promote proliferation and differentiation of oligodendrocyte precursor cells (OPCs) under oxygen/glucose deprivation (OGD)-induced injury in vitro. The results showed that after OGD, OPCs survival rate was significantly increased by Qu as measured by Cell Counting Kit-8. Furthermore, Qu treatment reduced apoptosis of OPCs surveyed by Hoechst 33258 nuclear staining. Qu at 9 and 27 μM promoted the proliferation of OPCs the most by Brdu and Olig2 immunocytochemical staining after OGD 3 days. Also, Qu treatment for 8 days after OGD, the differentiation of OPCs to oligodendrocyte was detected by immunofluorescence staining showing that O4, Olig2, and myelin basic protein (MBP) positive cells were significantly increased compared to control group. Additionally, the protein levels of Olig2 and MBP of OPCs were quantified using western blot and mRNA levels of Olig2 and Inhibitor of DNA binding 2 (Id2) were measured by RT-PCR. Western blot showed a significant increase in Olig2 and MBP expression levels compared with controls after OGD and Qu treatment with a linear does-response curve from 3 to 81 μM. After treatment with Qu compared to its control group, Olig2 mRNA level was significantly up-regulated, whereas Id2 mRNA level was down-regulated. In conclusion, Qu at 3-27 μM can promote the proliferation and differentiation of OPCs after OGD injury and may regulate the activity of Olig2 and Id2.
authors: Department of Neurobiology, Xuzhou Medical College, Xuzhou, 221002, Jiangsu, People's Republic of China.
authors: Xiuxiang
authors: X
authors: Wu
authors: Xuebin
authors: X
authors: Qu
authors: Qiang
authors: Q
authors: Zhang
authors: Fuxing
authors: F
authors: Dong
authors: Hongli
authors: H
authors: Yu
authors: Chen
authors: C
authors: Yan
authors: Dashi
authors: D
authors: Qi
authors: Meng
authors: M
authors: Wang
authors: Xuan
authors: X
authors: Liu
authors: Ruiqin
authors: R
authors: Yao
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D000975:Antioxidants / Q000494:pharmacology; D002454:Cell Differentiation / Q000187:drug effects / Q000502:physiology*; D015687:Cell Hypoxia / Q000187:drug effects / Q000502:physiology; D049109:Cell Proliferation / Q000187:drug effects; D002478:Cells, Cultured; D004305:Dose-Response Relationship, Drug; D005947:Glucose / Q000172:deficiency / Q000378:metabolism*; D006801:Humans; D009836:Oligodendroglia / Q000187:drug effects / Q000378:metabolism*; D010100:Oxygen / Q000378:metabolism*; D011794:Quercetin / Q000494:pharmacology*; D051381:Rats; D017207:Rats, Sprague-Dawley; D013234:Stem Cells / Q000187:drug effects / Q000378:metabolism*
chemical_list: D000975:Antioxidants; D011794:Quercetin; D005947:Glucose; D010100:Oxygen