Table 3. Summary of cell populations with “embryonic-like stem cell” features reported in the hUCB Lin⁻CD45⁻ fraction.

Name	Immunophenotype andtranscripts	Isolation	Morphology	Survivaland Growth	Specie(s)/Tissue	PossibleFunction	Reference
hUCB Lin − CD45 − population (non-HSC)	Lin−CD45−CD34+, Lin−CD45−CXCR4+,Lin−CD45−Nestin+, SSEA-4, SOX2, OCT4, NANOG, Hoescht +.	Lysis, Magnetic Columns.	6–10 microns, Highnuclear/cytoplasmic ratio	–	Human Cord Blood.	Quiescent.	This study
Very Small Embryonic-like stem cells (VSELs)	CD34, CD133, CXCR4, SSEA-4, SOX2,OCT4, NANOG, CD31, Hoescht(low/−/+).	Lysis, Magnetic Columns, FACS Sorting	3–7 microns, High nuclear/cytoplasmic ratio	−/+	Human Cord Blood.	Quiescent, Long-termrepopulation.	[4], [5], [23], [32]
Cord-blood-derived embryonic-like stem cells (CBEs)	SSEA-4, SOX2, OCT4, NANOG.	Ficoll density, Magnetic Selection.	3–6 microns	+	Human Cord Blood	Not reported	[3], [7], [21]