AAS ›› 2013, Vol. 44 ›› Issue (3 ): 324-329.doi: 10.3969/j.issn.0529-1356.2013.03.006

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Effect of hypoxia-ischemia on the expression of feerroportin 1 in O-2A progenitor cells

LIN Qing  ZHANG Geng  QIU Rong-hui  WANG Wei*   

  1. Department of Human Anatomy, Histology and Embryology, School of Preclinical Medicine,Research Center for Neurobiology, Fujian Medical University, Fuzhou 350108, China
  • Received:2012-08-13 Revised:2012-09-18 Online:2013-06-06 Published:2013-07-16

Abstract:

Objective To investigate the FPN1 expression and its role in O-2A progenitor cells after hypoxic-ischemic injury.
Methods O-2A progenitor cells were cultured in vitro, indentified with A2B5 antibody and investigated by the localization of
FPN1. Hypoxic-ischemic cell models were established by using the oxygen-glucose deprivation (OGD) method and the cell viability
was assessed by the CCK-8 method. The expression of FPN1 in O-2A progenitor cells after hypoxia-ischemia was detected by
immunofluorescent staining, quantitative real-time polymerase chain reaction analysis and Western blotting analysis. Results
FPN1 was localized at the cell membrane, and in the cytoplasm and processes of O-2A progenitor cells. The cell viability decreased
with time-dependence after 3hours, 6hours, 12hours and 24hours of OGD (P<0.05). The FPN1 immunofluorescence intensity of O-2A
progenitor cells decreased progressively within 12hours of OGD. The FPN1 mRNA and protein levels downregulated with time-dependence
after 3hours, 6hours and 12hours of OGD (P<0.05). Conclusion The level of FPN1 expression is down-regulated and cell viability
decreased significantly with time-dependence after OGD, which suggests that FPN1 may play a role in the hypoxic-ischemic injury of
O-2A progenitor cells.

Key words: Ferroportin 1, Hypoxia-ischemia, Real-time PCR, Western blotting, Oligodendrocyte-type-2 astrocyte progenitor cell