Effects of cobalt chloride on the stem cell marker expression and osteogenic differentiation of stem cells from human exfoliated deciduous teeth

Cell Stress & Chaperones
Yijing ChenWei Zhao

Abstract

Stem cells from human exfoliated deciduous teeth (SHEDs) are a promising source for tissue engineering and stem cell transplantation. However, long-term in vitro culture and expansion lead to the loss of stemness of SHEDs, compromising their therapeutic benefits. Hypoxia plays an essential role in controlling the stem cell behavior of mesenchymal stem cells (MSCs). Thus, this study aimed to investigate the effects of cobalt chloride (CoCl2), a hypoxia-mimetic agent, on the stem cell marker expression and osteogenic differentiation of SHEDs. SHEDs were cultured with or without 50 or 100 μM CoCl2. Their proliferation, apoptosis, stem cell marker expression, migration ability, and osteogenic differentiation were examined. Culture with 50 and 100 μM CoCl2 increased the hypoxia-inducible factor-1 alpha (HIF-1α) protein levels in a dose-dependent manner in SHEDs without inducing significant cytotoxicity. This effect was accompanied by an increase in the proportion of STRO-1+ cells. CoCl2 significantly increased the expression of stem cell markers (OCT4, NANOG, SOX2, and c-Myc) in a dose-dependent manner. The migration ability was also promoted by CoCl2 treatment. Furthermore, SHEDs cultured in osteogenic medium with CoCl2 showed a do...Continue Reading

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Citations

May 15, 2020·Biological Trace Element Research·Ivelin VladovYordanka Gluhcheva
Jan 26, 2021·Biomaterials·Kelsey G DeFratesPhillip B Messersmith
Apr 4, 2021·Journal of Personalized Medicine·Shilpa BhandiShankargouda Patil
Aug 28, 2021·Cells·Miriam Di MattiaBarbara Barboni

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Methods Mentioned

BETA
flow cytometry
electrophoresis
Assay

Software Mentioned

SPSS
FlowJo

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