Figure 1.
Morphology of splenic stromal fractions. Stromal cells were isolated from murine spleen using collagenase treatment, stained with antibody and sorted flow cytometrically. Cells were cultured and photographed after 28 days using a camera attached to an inverted phase microscope. Stromal fractions sorted on the basis of a single marker were tested for in vitro growth. (A) CD29+, (B) Sca-1+, (C) CD140a+, (D) CD105+, (E) gp38+, (F) ERTR7+, (G) CD51+ and (H) Thy1.2+.