Unit

UNIT 2A.1 Isolation of Mononuclear Cells from Human Cord Blood by Ficoll-Paque Density Gradient

  1. Taina Jaatinen,
  2. Jarmo Laine

Published Online: 1 JUN 2007

DOI: 10.1002/9780470151808.sc02a01s1

Current Protocols in Stem Cell Biology

Current Protocols in Stem Cell Biology

How to Cite

Jaatinen, T. and Laine, J. 2007. Isolation of Mononuclear Cells from Human Cord Blood by Ficoll-Paque Density Gradient. Current Protocols in Stem Cell Biology. 1:A:2A.1:2A.1.1–2A.1.4.

Author Information

  1. Finnish Red Cross Blood Service, Helsinki, Finland

Publication History

  1. Published Online: 1 JUN 2007
  2. Published Print: APR 2008

Abstract

When preparing stem cell specimens from cord blood, pre-enrichment of mononuclear cells is highly recommended to improve the recovery of rare stem cells. Mononuclear cells are easily isolated by density gradient centrifugation. In Ficoll-Paque density gradient centrifugation, anticoagulant-treated and diluted cord blood is layered on the Ficoll-Paque solution and centrifuged. During centrifugation, erythrocytes and granulocytes sediment to the bottom layer. Lower density lymphocytes, together with other slowly sedimenting cells such as platelets and monocytes, are retained at the interface between the plasma and Ficoll-Paque, where they can be collected and subjected to subsequent isolation of hematopoietic stem cells or to the culture of mesenchymal stem cells. Curr. Protoc. Stem Cell Biol. 1:2A.1.1-2A.1.4. © 2007 by John Wiley & Sons, Inc.

Keywords:

  • cord blood;
  • fresh;
  • cryopreserved;
  • mononuclear cell;
  • density gradient