Growth of Human Embryonic Stem Cells Using Derivates of Human Fibroblasts

Carmen Escobedo-Lucea, Miodrag Stojkovic

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The majority of human embryonic stem cell (hESC) lines have been derived and grown using mouse or human feeder cells, or using Matrigel®, an animal derivative rich in extracellular matrix (ECM) proteins. However, reliance on feeder layers and animal products limits the manipulation and clinical application of hESC. Alternatively, human fibroblasts produce an ECM which could be employed to coated plates and be easily sterilized. We have shown that hESC grown on this matrix and in the presence of medium conditioned by fibroblast cells maintain markers of pluripotency, including expression of cell surface proteins (SSEA3, SSEA4, TRA-1-60, TRA-1-81), alkaline phosphatase activity, and specific intracellular markers (NANOG, OCT, REX1). Moreover, hESC cultured on this novel human-derived ECM display a normal karyotype. This growth system reduces exposure of hESC to feeder layers and animal ingredients, thereby limiting the risk of pathogenic contamination and additionally facilitating manipulation of hESCs.
Original languageEnglish
JournalMethods in molecular biology
Volume584
ISSN1064-3745
DOIs
Publication statusPublished - 1 Oct 2009
MoE publication typeA1 Journal article-refereed

Fields of Science

  • extracellular matrix

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