Table 1. List of antibodies used in this study.
| Antgigen | Clone | Isotype | Supplier |
| CD31 (FACS) | WM59 | FITC-conjugated mouse IgG1 | BD Pharmingen (San Jose, CA) |
| CD45 (FACS) | HI30 | FITC-conjugated mouse IgG1 | BD Pharmingen |
| CD73 (FACS) | AD2 | PE-conjugated mouse IgG1 | BD Pharmingen |
| CD90 (FACS) | 5.00E+10 | PE-conjugated mouse IgG1 | BD Pharmingen |
| CD105 (FACS) | 266 | FITC-conjugated mouse IgG1 | BD Pharmingen |
| STRO-1 (FACS) | STRO-1 | mouse IgM | R & D Systems (Minneapolis, MN) |
| α-smooth muscle actin | 1A4 | mouse IgG2a | DAKO Cytomation (Glostrup, Denmark) |
| Estrogen recetor 1 | SP1 | rabbit IgG | Lab Vision (Kalamazoo, MI) |
| Progesterone receptor | SP2 | rabbit IgG | Lab Vision |