Effects of lentivirus-mediated astrocyte elevated gene-1 overexpression on proliferation and apoptosis of human retinoblastoma cells
Purpose To investigate the effect of astrocyte elevated gene-1 (AEG-1) overexpression on the biological behaviour of human retinoblastoma (RB) cells and its possible mechanism. Methods Three human RB cell lines (SO-RB50, Y79 and WERI-RB1) were infected with AEG-1-GFP recombinant lentiviral vectors t...
Gespeichert in:
| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
29 January 2019
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| In: |
Acta ophthalmologica
Year: 2019, Jahrgang: 97, Heft: 3, Pages: 1-6 |
| ISSN: | 1755-3768 |
| DOI: | 10.1111/aos.14034 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1111/aos.14034 Verlag, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1111/aos.14034 
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| Verfasserangaben: | Haixia Bai, Ying Chang, Bin Li, Ying Mao and Jost B. Jonas |
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| 245 | 1 | 0 | |a Effects of lentivirus-mediated astrocyte elevated gene-1 overexpression on proliferation and apoptosis of human retinoblastoma cells |c Haixia Bai, Ying Chang, Bin Li, Ying Mao and Jost B. Jonas |
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| 520 | |a Purpose To investigate the effect of astrocyte elevated gene-1 (AEG-1) overexpression on the biological behaviour of human retinoblastoma (RB) cells and its possible mechanism. Methods Three human RB cell lines (SO-RB50, Y79 and WERI-RB1) were infected with AEG-1-GFP recombinant lentiviral vectors to induce AEG-1 overexpression, while the cells infected with negative lentiviral vectors and cells without any intervention formed control groups. Results All three RB cell lines showed an overexpression of AEG-1 after lentivirus infection (p < 0.001 for all three cell lines). The survival rate of RB cells increased (all p < 0.001) in the AEG-1 overexpressed groups when compared with the control groups. There was a decrease in G0/G1 cell cycle phase arrest and an accumulation in G2/M cell cycle phase in all three RB cell lines (p < 0.001), with an induction in the S phase in WERI-RB1 cells. It was paralleled by a downregulation of p21 and p27 proteins and an upregulation of the Cdc2 protein. The apoptosis rate of RB cells declined (p < 0.001) when AEG-1 was overexpressed, in association with an upregulation of Bcl-2 protein and a downregulation of Bax protein and cleaved caspase-3 proteins. Conclusions A lentivirus-mediated AEG-1 overexpression in RB cells led in vitro to a growth promotion and an apoptosis inhibition of human RB cells, associated with an upregulation of the Bcl-2 protein, a downregulation of the Bax protein and of cleaved caspase-3 proteins, and with alterations of the cell cycle. AEG-1 may be involved in the development and progression of RB. | ||
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