Characterization of the T-cell potential of 2 separate intermediate CD34^lo precursors, CD44^hi or CD44^lo, derived from the earliest intrathymic progenitors.

Phenotypic analysis (A) of the cellular progeny generated in hu/moFTOC from CD44^lo (upper histograms) or CD44^hi (lower histograms) in vitro–derived CD34^lo progenitors obtained as described in Figure 2A. Absolute cell numbers (B) of the indicated populations recovered per thymic lobe after 17 days of reconstitution with either CD44^lo (empty bars) or CD44^hi (filled bars) CD34^lo progenitors (2 × 10⁴/lobe).