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Directed differentiation of human embryonic stem cells toward chondrocytes

Lookup NU author(s): Dr Rachel Oldershaw

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Abstract

We report a chemically defined, efficient, scalable and reproducible protocol for differentiation of human embryonic stem cells (hESCs) toward chondrocytes. HESCs are directed through intermediate developmental stages using substrates of known matrix proteins and chemically defined media supplemented with exogenous growth factors. Gene expression analysis suggests that the hESCs progress through primitive streak or mesendoderm to mesoderm, before differentiating into a chondrocytic culture comprising cell aggregates. At this final stage, 74% (HUES1 cells) and up to 95ĝ€"97% (HUES7 and HUES8 cells) express the chondrogenic transcription factor SOX9. The cell aggregates also express cell surface CD44 and aggrecan and deposit a sulfated glycosaminoglycan and cartilage-specific collagen II matrix, but show very low or no expression of genes and proteins associated with nontarget cell types. Our protocol should facilitate studies of chondrocyte differentiation and of cell replacement therapies for cartilage repair. © 2010 Nature America, Inc. All rights reserved.

Publication metadata

Author(s): Oldershaw R, Baxter M, Lowe E, Bates N, Grady L, Soncin F, Brison D, Hardingham T, Kimber S

Publication type: Article

Publication status: Published

Journal: Nature Biotechnology

Year: 2010

Volume: 28

Issue: 11

Pages: 1187-1194

Print publication date: 22/10/2010

ISSN (print): 1087-0156

ISSN (electronic): 1546-1696

Publisher: Nature Publishing Group

URL: http://dx.doi.org/10.1038/nbt.1683

DOI: 10.1038/nbt.1683

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