Bromodeoxyuridine increases multipotency of human bone marrow-derived stem cells

Area of Science:

• Stem cell biology
• Neuroscience
• Ophthalmology

Background:

• Marrow-derived mesenchymal stem cells (MeSCs) show potential for differentiating into various cell types, including neural cells.
• Previous studies demonstrated this differentiation in vitro and in neonatal animals, but success in adult brains was limited.
• Successful differentiation of human MeSCs (HMeSCs) in adult brains could offer therapeutic strategies for neurological disorders.

Purpose of the Study:

• To investigate if adult human MeSCs (HMeSCs) can differentiate into neural and retinal cells in adult animals.
• To determine the effect of 5-bromo-2-deoxyuridine (BrdU) treatment on HMeSC differentiation potential.
• To explore the therapeutic potential of differentiated HMeSCs for neurological and ophthalmological diseases.

Main Methods:

• Adult human MeSCs were isolated and treated with BrdU (3 μM) for three weeks.
• BrdU-treated and untreated HMeSCs were subjected to differentiation conditions in vitro.
• BrdU-treated HMeSCs were transplanted into adult rat brains and vitreous for in vivo differentiation assessment.

Main Results:

• BrdU-pretreated HMeSCs expressed neuronal and glial markers after co-culture with human neural stem cells.
• Transplantation of BrdU-pretreated HMeSCs into adult rat brains resulted in expression of neural markers.
• HMeSCs pretreated with BrdU and transforming growth factor-beta3 expressed a photoreceptor marker after transplantation into the adult rat vitreous.

Conclusions:

• BrdU treatment enhances the multipotency of human mesenchymal stem cells (HMeSCs).
• These findings suggest BrdU-treated HMeSCs may be valuable for autologous cell therapies.
• Potential applications include treating neurological and ophthalmological conditions.