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Prenatal transplantation of epidermal neural crest stem cells in malformation of cortical development mouse model.
Microscopy Research and Technique 2017 April
Prenatal interventions may offer an immense opportunity in therapeutic protocols of malformations of cortical development (MCD). Epidermal neural crest stem cells (EPI-NCSCs) of the hair follicle bulge exhibit features of both embryonic and adult stem cells; these cells maintain their neurologic differentiation capability because of their neural crest origin. However, it is unknown if prenatal use of EPI-NCSCs could be beneficial in targeting methylazoxymethanol (MAM)-induced MCD, which further addressed in the present work. EPI-NCSCs were prenatally infused to the MAM-exposed mice. Thicknesses of various cerebral cortex areas as well as corpus callosum was measured; there were markedly decrease in MAM group (p < .001 vs. untreated), but a significant increase in EPI-NCSC group (p < .05 vs. MAM), except for corpus callosum. Real-time PCR analysis showed high expressions for absent, small, or homeotic 2-like protein, nestin, doublecortin (DCX), neuronal specific nuclei protein (NeuN), and glial fibrillary acidic protein (GFAP) in MAM group (p < .001 vs. untreated), except for G-protein-coupled C-X-C chemokine receptor type 4 (CXCR4) and CXC motif ligand 12 (CXCL12), whereas there were low expressions in EPI-NCSCs group (p < .01 vs. MAM). Immunohistochemistry of NeuN, GFAP, ionized calcium-binding adapter molecule (Iba1), and oligodendrocyte lineage transcription factor 2 (Olig2) was also revealed the same pattern as real-time PCR (p < .001 MAM vs. untreated, and p < .05 EPI-NCSCs vs. MAM). Our findings suggest prenatal use of EPI-NCSCs as a possible candidate for cell-based therapy of cortical injury through affecting neural markers and their relationship with glial.
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