Figure 2

Frequency distribution of mammary progenitors among sorted fractions. (i) frequency of mammary progenitors in the four isolated cell fraction is expressed as number of colonies per 1,000 cells seeded (n = 3) ± s.e. (ii) relative frequency of luminal and myoepithelial colonies within the CD49fhigh/P-Cadherinneg subpopulation when cells were seeded immediately after sorting and after cells of the same fraction were engrafted in NOD/SCID mice.