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Article

Erythropoietin promotes retinal angiogenesis in a mouse model

  • Authors:
    • Chen-Ting Wen
    • Tao He
    • Yi-Qiao Xing
  • View Affiliations / Copyright

    Affiliations: Eye Center, Renmin Hospital, Wuhan University, Wuhan, Hubei 430060, P.R. China
  • Pages: 2979-2984
    |
    Published online on: September 23, 2014
       https://doi.org/10.3892/mmr.2014.2593
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Abstract

This study aimed to investigate the effect and potential mechanisms of exogenous administration of recombinant human erythropoietin (rhEPO) on retinal angiogenesis in a mouse model of oxygen-induced retinopathy (OIR). Postnatal day 7 (P7) mice (n=132) were randomly assigned to one of six groups: Control group (n=22), OIR group (n=22), OIR + vehicle control group (n=22), OIR + rhEPO 10 IU group (n=22), OIR + rhEPO 50 IU group (n=22), and OIR + rhEPO 100 IU group (n=22). OIR was induced by exposing mice to 75±2% O2 for five days, followed by exposure to room air for a further five days. Animals in groups 3-6 (the OIR + vehicle control group and OIR + rhEPO 10 IU, 50 IU, and 100 IU groups) received an intraperitoneal injection of saline, or rhEPO 10 IU, 50 IU and 100 IU, respectively, which were administered daily from P7-P12. Immunofluorescent and hematoxylin-eosin staining were used to detect retinal neovascularization (RNV) in retinal whole mounts. Quantitative polymerase chain reaction and western blot analysis were used to detect the expression levels of vascular endothelial growth factor (VEGF), endothelial nitric oxide synthase (eNOS), and neuronal nitric oxide synthase (nNOS). RNV occurred in the OIR groups and was accompanied by dilated, twisted and occluded blood vessels. rhEPO treatment resulted in an increase in the number of newly formed and severely dilated vessels. rhEPO increased RNV in a dose-dependent manner, which was accompanied by an increase in the messenger RNA and protein expression of VEGF, eNOS and nNOS. Thus, exogenous use of rhEPO promotes the RNV in a mouse model of OIR and is accompanied by increased expression levels of VEGF, eNOS and nNOS.
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Copy and paste a formatted citation
Spandidos Publications style
Wen C, He T and Xing Y: Erythropoietin promotes retinal angiogenesis in a mouse model. Mol Med Rep 10: 2979-2984, 2014.
APA
Wen, C., He, T., & Xing, Y. (2014). Erythropoietin promotes retinal angiogenesis in a mouse model. Molecular Medicine Reports, 10, 2979-2984. https://doi.org/10.3892/mmr.2014.2593
MLA
Wen, C., He, T., Xing, Y."Erythropoietin promotes retinal angiogenesis in a mouse model". Molecular Medicine Reports 10.6 (2014): 2979-2984.
Chicago
Wen, C., He, T., Xing, Y."Erythropoietin promotes retinal angiogenesis in a mouse model". Molecular Medicine Reports 10, no. 6 (2014): 2979-2984. https://doi.org/10.3892/mmr.2014.2593
Copy and paste a formatted citation
x
Spandidos Publications style
Wen C, He T and Xing Y: Erythropoietin promotes retinal angiogenesis in a mouse model. Mol Med Rep 10: 2979-2984, 2014.
APA
Wen, C., He, T., & Xing, Y. (2014). Erythropoietin promotes retinal angiogenesis in a mouse model. Molecular Medicine Reports, 10, 2979-2984. https://doi.org/10.3892/mmr.2014.2593
MLA
Wen, C., He, T., Xing, Y."Erythropoietin promotes retinal angiogenesis in a mouse model". Molecular Medicine Reports 10.6 (2014): 2979-2984.
Chicago
Wen, C., He, T., Xing, Y."Erythropoietin promotes retinal angiogenesis in a mouse model". Molecular Medicine Reports 10, no. 6 (2014): 2979-2984. https://doi.org/10.3892/mmr.2014.2593
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