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| Home > Publications database > Characterization of Apoptosis Signaling Cascades During the Differentiation Process of Human Neural ReNcell VM Progenitor Cells In Vitro > print |
| Home > Publications database > Characterization of Apoptosis Signaling Cascades During the Differentiation Process of Human Neural ReNcell VM Progenitor Cells In Vitro > print |
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| 100 | 1 | _ | |a Jaeger, Alexandra |0 P:(DE-Juel1)142514 |b 0 |
| 245 | _ | _ | |a Characterization of Apoptosis Signaling Cascades During the Differentiation Process of Human Neural ReNcell VM Progenitor Cells In Vitro |
| 260 | _ | _ | |a Dordrecht |c 2015 |b Springer Science + Business Media B.V |
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| 520 | _ | _ | |a Apoptosis is an essential physiological process accompanying the development of the central nervous system and human neurogenesis. However, the time scale and the underlying molecular mechanisms are yet poorly understood. Due to this fact, we investigated the functionality and general inducibility of apoptosis in the human neural ReNcell VM progenitor cell line during differentiation and also after exposure to staurosporine (STS) and ultraviolet B (UVB) irradiation. Transmission light microscopy, flow cytometry, and Western-/Immunoblot analysis were performed to compare proliferating and differentiating, in addition to STS- and UVB-treated cells. In particular, from 24 to 72 h post-initiation of differentiation, G0/G1 cell cycle arrest, increased loss of apoptotic cells, activation of pro-apoptotic BAX, Caspase-3, and cleavage of its substrate PARP were observed during cell differentiation and, to a higher extent, after treatment with STS and UVB. We conclude that redundant or defective cells are eliminated by apoptosis, while otherwise fully differentiated cells were less responsive to apoptosis induction by STS than proliferating cells, likely as a result of reduced APAF-1 expression, and increased levels of BCL-2. These data provide the evidence that apoptotic mechanisms in the neural ReNcell VM progenitor cell line are not only functional, but also inducible by external stimuli like growth factor withdrawal or treatment with STS and UVB, which marks this cell line as a suitable model to investigate apoptosis signaling pathways in respect to the differentiation processes of human neural progenitor cells in vitro. |
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| 700 | 1 | _ | |a Fröhlich, Michael |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Klum, Susanne |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Lantow, Margareta |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Viergutz, Torsten |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Weiss, Dieter G. |0 P:(DE-HGF)0 |b 5 |
| 700 | 1 | _ | |a Kriehuber, Ralf |0 P:(DE-Juel1)133469 |b 6 |e Corresponding author |
| 773 | _ | _ | |a 10.1007/s10571-015-0213-7 |g Vol. 35, no. 8, p. 1203 - 1216 |0 PERI:(DE-600)1496697-9 |n 8 |p 1203 - 1216 |t Cellular and molecular neurobiology |v 35 |y 2015 |x 1573-6830 |
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