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Romorini, L.; Garate, X.; Neiman, G.; Luzzani, C.; Furmento, V.A.; Guberman, A.S.; Sevlever, G.E.; Scassa, M.E.; Miriuka, S.G. "AKT/GSK3β signaling pathway is critically involved in human pluripotent stem cell survival" (2016) Scientific Reports. 6
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Abstract:

Human embryonic and induced pluripotent stem cells are self-renewing pluripotent stem cells (PSC) that can differentiate into a wide range of specialized cells. Basic fibroblast growth factor is essential for PSC survival, stemness and self-renewal. PI3K/AKT pathway regulates cell viability and apoptosis in many cell types. Although it has been demonstrated that PI3K/AKT activation by bFGF is relevant for PSC stemness maintenance its role on PSC survival remains elusive. In this study we explored the molecular mechanisms involved in the regulation of PSC survival by AKT. We found that inhibition of AKT with three non-structurally related inhibitors (GSK690693, AKT inhibitor VIII and AKT inhibitor IV) decreased cell viability and induced apoptosis. We observed a rapid increase in phosphatidylserine translocation and in the extent of DNA fragmentation after inhibitors addition. Moreover, abrogation of AKT activity led to Caspase-9, Caspase-3, and PARP cleavage. Importantly, we demonstrated by pharmacological inhibition and siRNA knockdown that GSK3β signaling is responsible, at least in part, of the apoptosis triggered by AKT inhibition. Moreover, GSK3β inhibition decreases basal apoptosis rate and promotes PSC proliferation. In conclusion, we demonstrated that AKT activation prevents apoptosis, partly through inhibition of GSK3β, and thus results relevant for PSC survival. © 2016 The Author(s).

Registro:

Documento: Artículo
Título:AKT/GSK3β signaling pathway is critically involved in human pluripotent stem cell survival
Autor:Romorini, L.; Garate, X.; Neiman, G.; Luzzani, C.; Furmento, V.A.; Guberman, A.S.; Sevlever, G.E.; Scassa, M.E.; Miriuka, S.G.
Filiación:Laboratorios de Investigación Aplicada en Neurociencias (LIAN-CONICET), Fundación FLENI, Ruta 9, Escobar, Buenos Aires, B1625XAF, Argentina
Laboratorio de Regulación de Expresión Génica, IQUIBICEN, Dptos. de Quimica Biologica y de Fisiologia, Biologia Molecular y Celular, Buenos Aires, C1428EGA, Argentina
Palabras clave:glycogen synthase kinase 3beta; oncoprotein; cell culture; cell survival; gene expression regulation; human; metabolism; physiology; pluripotent stem cell; signal transduction; Cell Survival; Cells, Cultured; Gene Expression Regulation; Glycogen Synthase Kinase 3 beta; Humans; Oncogene Protein v-akt; Pluripotent Stem Cells; Signal Transduction
Año:2016
Volumen:6
DOI: http://dx.doi.org/10.1038/srep35660
Título revista:Scientific Reports
Título revista abreviado:Sci. Rep.
ISSN:20452322
CAS:glycogen synthase kinase 3alpha; glycogen synthase kinase 3beta; Glycogen Synthase Kinase 3 beta; Oncogene Protein v-akt
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20452322_v6_n_p_Romorini

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Citas:

---------- APA ----------
Romorini, L., Garate, X., Neiman, G., Luzzani, C., Furmento, V.A., Guberman, A.S., Sevlever, G.E.,..., Miriuka, S.G. (2016) . AKT/GSK3β signaling pathway is critically involved in human pluripotent stem cell survival. Scientific Reports, 6.
http://dx.doi.org/10.1038/srep35660
---------- CHICAGO ----------
Romorini, L., Garate, X., Neiman, G., Luzzani, C., Furmento, V.A., Guberman, A.S., et al. "AKT/GSK3β signaling pathway is critically involved in human pluripotent stem cell survival" . Scientific Reports 6 (2016).
http://dx.doi.org/10.1038/srep35660
---------- MLA ----------
Romorini, L., Garate, X., Neiman, G., Luzzani, C., Furmento, V.A., Guberman, A.S., et al. "AKT/GSK3β signaling pathway is critically involved in human pluripotent stem cell survival" . Scientific Reports, vol. 6, 2016.
http://dx.doi.org/10.1038/srep35660
---------- VANCOUVER ----------
Romorini, L., Garate, X., Neiman, G., Luzzani, C., Furmento, V.A., Guberman, A.S., et al. AKT/GSK3β signaling pathway is critically involved in human pluripotent stem cell survival. Sci. Rep. 2016;6.
http://dx.doi.org/10.1038/srep35660