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Int J Stem Cells. 2019 Nov 30;12(3):463-473. doi: 10.15283/ijsc19007.

Role of a 19S Proteasome Subunit- PSMD10Gankyrin in Neurogenesis of Human Neural Progenitor Cells.

Author information

1
Advance Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai, India.
2
Faculty of Biology, Technion - Israel Institute of Technology, Haifa, Israel.
3
Homi Bhabha National Institute, BARC Training School Complex, Mumbai, Maharashtra, India.
4
Department of Pathology, University of Massachusetts Medical School, Worcester, MA, USA.
5
Department of Physics, Bose Institute, Kolkata, India.

Abstract

PSMD10Gankyrin, a proteasome assembly chaperone, is a widely known oncoprotein which aspects many hall mark properties of cancer. However, except proteasome assembly chaperon function its role in normal cell function remains unknown. To address this issue, we induced PSMD10Gankyrin overexpression in HEK293 cells and the resultant large-scale changes in gene expression profile were analyzed. We constituted networks from microarray data of these differentially expressed genes and carried out extensive topological analyses. The overrecurring yet consistent theme that appeared throughout analysis using varied network metrics is that all genes and interactions identified as important would be involved in neurogenesis and neuronal development. Intrigued we tested the possibility that PSMD10Gankyrin may be strongly associated with cell fate decisions that commit neural stem cells to differentiate into neurons. Overexpression of PSMD10Gankyrin in human neural progenitor cells facilitated neuronal differentiation via β-catenin Ngn1 pathway. Here for the first time we provide preliminary and yet compelling experimental evidence for the involvement of a potential oncoprotein - PSMD10Gankyrin, in neuronal differentiation.

KEYWORDS:

Gankyrin; Human neural progenitor cells; Microarray; Neurogenesis; PSMD10; Proteasome

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