Fig. 1.

Fractionation of Lin⁻cKit⁺Sca1⁻IL7Rα⁻FcγRII/III^loCD150⁺ bone marrow with CD9 and endoglin. (A) Flow cytometry fractionation of Lin⁻cKit⁺Sca1⁻IL7Rα⁻FcγRII/III^loCD150⁺ bone marrow cells by endoglin and CD9 expression into CD9^loendoglin^lo, CD9^hiendoglin^lo, and CD9^loendoglin^hi populations. Isotype control (contour plot). (B) CD9^loendoglin^lo (Left), CD9^hiendoglin^lo (Center), and CD9^loendoglin^hi (Right) cytocentrifuge preparations stained with May–Grunwald–Giemsa stain. (C) Comparison of CD9^loendoglin^lo, CD9^hiendoglin^lo, and CD9^loendoglin^hi Lin⁻cKit⁺Sca1⁻IL7Rα⁻FcγRII/III^loCD150⁺ bone marrow fractions with CD9^hiMkP, PreCFU-E, and PreMeg-E populations (Table S1) by flow cytometry.