The type III TGF-β receptor suppresses breast cancer progression
J. Clin. Invest. Mei Dong, et al. 117:206 doi:10.1172/JCI29293 [
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Figure 2Progressive loss of TβRIII protein expression during mammary carcinogenesis. (
A) Representative IHC analysis of TβRIII expression (original magnification, ×40) in normal breast ductal cells, in different grades of DCIS, and in lymph node–negative (node neg) and –positive (node pos) IDC. Insets depict staining of entire tissue core (original magnification, ×10). Immunoreactivity for TβRIII was scored as 0–5 and categorized as low (0–1), medium (2–3), or high (4–5). Note the absence of TβRIII staining in IDC and high-grade DCIS (arrows) versus presence of staining in normal ducts and normal-appearing ducts adjacent to the DCIS lesion (arrowhead). (
B) Summary of IHC results, with percentages shown. Dis met, distant metastasis. **
P < 0.01, 2-tailed Fisher’s exact probability. (
C) Patient-matched normal and invasive breast cancer IHC TβRIII scores. (
D) Patient-matched DCIS and invasive breast cancer IHC TβRIII scores.