Neural progenitor cell differentiation

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United States of America Patent

PATENT NO 9862924
SERIAL NO

14777335

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Abstract

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Differentiation and stability of neural stem cells can be enhanced by in vitro or in vivo culturing with one or more extracellular matrix (ECM) compositions, such as collagen I, IV, laminin and/or a heparan sulfate proteoglycan. In one aspect of the invention, adult mammalian enteric neuronal progenitor cells can be induced to differentiate on various substrates derived from components or combinations of neural ECM compositions. Collagen I and IV supported neuronal differentiation and extensive glial differentiation individually and in combination. Addition of laminin or heparan sulfate to collagen substrates unexpectedly improved neuronal differentiation, increasing neuron number, branching of neuronal processes, and initiation of neuronal network formation. In another aspect, neuronal subtype differentiation was affected by varying ECM compositions in hydrogels overlaid on intestinal smooth muscle sheets. The matrix compositions of the present invention can be used to tissue engineer transplantable innervated GI smooth muscle constructs to remedy aganglionic disorders.

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Patent Owner(s)

Patent OwnerAddress
WAKE FOREST UNIVERSITY HEALTH SCIENCESMEDICAL CENTER BLVD WINSTON-SALEM NC 27157

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bitar, Khalil Winston-Salem, US 11 40

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