Figure 7. miR-7 inhibits breast cancer cell metastasis to mice lungs.

(A) H&E stained sections of lungs isolated from mice that received tail vein injection of miR-7 or control infected MDA-MB-435s cells (scale bar: 100 µm). (B) Numbers of lung micrometastases per section in individual mice (each data point represents a different mouse; n = 7 mice per group). (C) Expression of human HPRT mRNA relative to mouse 18S rRNA in the lungs of the tumor-bearing mice.