Figure 1.
Expression of arginase I in tumor-infiltrating MSCs is independent of lymphocytes. (A) Single-cell suspensions from individual subcutaneous 3LL tumors excised from tumor-bearing C57BL/6 and C57BL/6 Prkdc scid mice (n = 15 per group) were tested for arginase I expression via Western blot analysis. Representative results of 10 tumors are shown. (B) Arginase I expression was tested in freshly isolated MSCs infiltrating individual 3LL tumors from C57BL/6 and C57BL/6 Prkdc scid tumor-bearing mice (n = 15 per group). Representative results from 6 tumors are shown.