Title: Hematopoietic reconstitution by multipotent adult progenitor cells: precursors to long-term hematopoietic stem cells
Authors: Serafini, Marta ×
Dylla, Scott J
Oki, Masayuki
Heremans, Yves
Tolar, Jakub
Jiang, Yuehua
Buckley, Shannon
Pelacho, Beatriz
Burns, Terry C
Frommer, Sarah
Rossi, Derrick J
Bryder, David
Panoskaltsis-Mortari, Angela
O'shaughnessy, Matthew J
Nelson-Holte, Molly
Fine, Gabriel C
Weissman, Irving L
Blazar, Bruce R
Verfaillie, Catherine #
Issue Date: 16-Jan-2007
Publisher: Rockefeller Institute for Medical Research
Series Title: Journal of Experimental Medicine vol:204 issue:1 pages:129-139
Abstract: For decades, in vitro expansion of transplantable hematopoietic stem cells (HSCs) has been an elusive goal. Here, we demonstrate that multipotent adult progenitor cells (MAPCs), isolated from green fluorescent protein (GFP)-transgenic mice and expanded in vitro for >40-80 population doublings, are capable of multilineage hematopoietic engraftment of immunodeficient mice. Among MAPC-derived GFP(+)CD45.2(+) cells in the bone marrow of engrafted mice, HSCs were present that could radioprotect and reconstitute multilineage hematopoiesis in secondary and tertiary recipients, as well as myeloid and lymphoid hematopoietic progenitor subsets and functional GFP(+) MAPC-derived lymphocytes that were functional. Although hematopoietic contribution by MAPCs was comparable to control KTLS HSCs, approximately 10(3)-fold more MAPCs were required for efficient engraftment. Because GFP(+) host-derived CD45.1(+) cells were not observed, fusion is not likely to account for the generation of HSCs by MAPCs.
ISSN: 0022-1007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Interdepartemental Stem Cell Institute (-)
× corresponding author
# (joint) last author

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