Increasing hematopoietic stem cell yield to develop mice with human immune systems.

Abstract:

:Hematopoietic stem cells (HSCs) are unique in their capacity to give rise to all mature cells of the immune system. For years, HSC transplantation has been used for treatment of genetic and neoplastic diseases of the hematopoietic and immune systems. The sourcing of HSCs from human umbilical cord blood has salient advantages over isolation from mobilized peripheral blood. However, poor sample yield has prompted development of methodologies to expand HSCs ex vivo. Cytokines, trophic factors, and small molecules have been variously used to promote survival and proliferation of HSCs in culture, whilst strategies to lower the concentration of inhibitors in the culture media have recently been applied to promote HSC expansion. In this paper, we outline strategies to expand HSCs in vitro, and to improve engraftment and reconstitution of human immune systems in immunocompromised mice. To the extent that these "humanized" mice are representative of the endogenous human immune system, they will be invaluable tools for both basic science and translational medicine.

journal_name

Biomed Res Int

authors

Biancotti JC,Town T

doi

10.1155/2013/740892

subject

Has Abstract

pub_date

2013-01-01 00:00:00

pages

740892

eissn

2314-6133

issn

2314-6141

journal_volume

2013

pub_type

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