Table 1

Phenotypic Characterization of ERC

Marker
Relevance
Expression

CD14
Monocyte marker
Negative
CD34
Hematopoietic stem cell marker
Negative
CD38
Differentiating hematopoietic stem cell marker
Negative
CD45
Pan-leukocyte marker
Negative
CD133
Hematopoietic/angioblast marker
Negative
STRO-1
MSC marker
Negative
SSEA-4
Embryonic stem cell marker
Negative
Nanog
Embryonic stem cell marker
Negative
CD9
MSC marker, associated with angiogenesis1
Positive
CD29
Adhesion molecule on mesenchymal and hepatic stem cells2
Positive
CD59
Complement inhibitor protein found on MSC3 and bone marrow side population CD34-stem cells4
Positive
CD73
Ecto-5'-nucleotidase, involved in migration of MSC
Positive
CD41a
Receptor for fibrinogen and vWF, found on MSC and platelets
Positive
CD44
Hyaluronic acid receptor found on tissue stem cells and MSC
Positive
CD90
Marker of T cells, hematopoietic and MSC
Positive
CD105
Marker of tissue and MSC
Positive
hTERT
Telomerase reverse transcriptase
Positive
Oct-4
Embryonic stem cell marker
Positive

1 Kim YJ, Yu JM, Joo HJ, Kim HK, Cho HH, Bae YC, Jung JS. Role of CD9 in proliferation and proangiogenic action of human adipose-derived mesenchymal stem cells. Pflugers Arch. 2007 Aug 1.

2 Chiba T, Zheng YW, Kita K, Yokosuka O, Saisho H, Onodera M, Miyoshi H, Nakano M, Zen Y, Nakanuma Y, Nakauchi H, Iwama A, Taniguchi H. Enhanced Self-Renewal Capability in Hepatic Stem/Progenitor Cells Drives Cancer Initiation. Gastroenterology. 2007 Jun 20;

3 Izadpanah R, Joswig T, Tsien F, Dufour J, Kirijan JC, Bunnell BA. Characterization of multipotent mesenchymal stem cells from the bone marrow of rhesus macaques. Stem Cells Dev. 2005 Aug;14(4):440–51.

4 Preffer FI, Dombkowski D, Sykes M, Scadden D, Yang YG. Lineage-negative side-population (SP) cells with restricted hematopoietic capacity circulate in normal human adult blood: immunophenotypic and functional characterization. Stem Cells. 2002;20(5):417–27.

Meng et al. Journal of Translational Medicine 2007 5:57   doi:10.1186/1479-5876-5-57