Characterization and neural differentiation of mouse embryonic and induced pluripotent stem cells on cadherin-based substrata.
Biomaterials
; 33(20): 5094-106, 2012 Jul.
Article
en En
| MEDLINE
| ID: mdl-22520296
ABSTRACT
A suitable culture condition using advanced biomaterials has the potential to improve stem cell differentiation into selective lineages. In this study, we evaluated the effects of recombinant extracellular matrix (ECM) components on the mouse embryonic stem (mES) and induced pluripotent stem (miPS) cells' self-renewal and differentiation into neural progenitors, comparing conventional culture substrata. The recombinant ECMs were established by immobilizing two chimera proteins of cadherin molecules, E-cadherin-Fc and N-cadherin-Fc, either alone or in combination. We report that the completely homogeneous population of mES and miPS cells could be maintained on E-cadherin-based substrata under feeder- and serum-free culture conditions to initiate neural differentiation. Using defined monolayer differentiation conditions on E-cadherin and N-cadherin (E-/N-cad-Fc) hybrid substratum, we routinely obtained highly homogeneous population of primitive ectoderm and neural progenitor cells. Moreover, the differentiated cells with higher expression of ßIII-tubulin, Pax6, and tyrosine hydroxylase (TH) in absence of GFAP (a glial cell marker) expression suggesting the presence of a lineage restricted to neural cells. Our improved culture method should provide a homogeneous microenvironment for differentiation and obviate the need for protocols based on stromal feeders or embryoid bodies.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Cadherinas
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Diferenciación Celular
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Células Madre Embrionarias
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Células Madre Pluripotentes Inducidas
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Neuronas
Límite:
Animals
Idioma:
En
Revista:
Biomaterials
Año:
2012
Tipo del documento:
Article
País de afiliación:
Japón