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Gene expression profiles of dental follicle cells after 48 hours of transfection in vitro with a DLX3 plasmid and an empty vector

ABSTRACT: We analysed gene expression profiles in dental follicle cells after 48 hours of overexpression with the transcription factor DLX3. Total RNAs were isolated from dental follicle cells after 48 hours of transfection with a DLX3 expressions plasmid and for control with an empty vector.

ORGANISM(S): Homo sapiens

SUBMITTER: Christian Morsczeck

PROVIDER: E-GEOD-29753 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Expression data from human dental follicle cells

Project description:We analysed the genexpression of dental follicle cells (DFCs) after 3 days osteogenic differentiation with BMP2 after transfection with a DLX3 plasmid (pDLX3) and after transfection with an empty plasmid (pEV) Total RNAs were isolated from dental follicle cells after transfection with pDLX3 and pEV and osteogenic induction with BMP2 at day 3

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Gene expression profiles of dental follicle cells after 48 hours of transfection in vitro with a DLX3 plasmid and an empty vector

Project description:We analysed gene expression profiles in dental follicle cells after 48 hours of overexpression with the transcription factor DLX3.

2011-06-07 | GSE29753 | GEO

Gene expression profiles of DFCs and SHED 48 hours after in vitro transfection with a TP53 plasmid, a SP1 plasmid, or an empty vector.

Project description:Dental follicle is a loose connective tissue that surrounds the developing tooth. Dental follicle cells (DFCs) have a promising potential for tissue engineering applications including periodontal and bone regeneration. However, little is known about the molecular mechanisms underlying osteogenic differentiation. In a previous study we detected that more than 35 % of genes that are regulated during osteogenic differentiation of DFCs have promoter binding sites for the transcription factors TP53 and SP1. However, the role of these transcription factors in dental stem cells is still unknown. We hypothesize that both factors influence the processes of cell proliferation and differentiation in dental stem cells. Therefore, we transiently transfected DFCs and dental pulp stem cells (SHED; Stem cells from human exfoliated decidiuous teeth) with expression vectors for these transcription factors. After overexpression of SP1 and TP53, SP1 influenced cell proliferation and TP53 osteogenic differentiation in both dental cell types. The effects on cell proliferation and differentiation were less pronounced after siRNA mediated silencing of TP53 and SP1. This indicates that the effects we observed after TP53 and SP1 overexpression are indirect and subject of complex regulation. Interestingly, upregulated biological processes in DFCs after TP53-overexpression resemble the downregulated biological processes in SHED after SP1-overexpression. Here, regulated processes are involved in cell motility, wound healing and programmed cell death. In conclusion, our study demonstrates that SP1 and TP53 influence cell proliferation and differentiation and similar biological processes in both SHED and DFCs. Total RNAs were isolated from dental follicle cells after 48 hours of transfection with a TP53 expressions plasmid, a SP1 expressions plasmid and for control with an empty vector.

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