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Figure 3 | Breast Cancer Research

Figure 3

From: Hyperinsulinemia enhances c-Myc-mediated mammary tumor development and advances metastatic progression to the lung in a mouse model of type 2 diabetes

Figure 3

Hyperinsulinemia results in increased expression of c-Myc, MMP-9, IR-β, IGF-IR and VEGF in Mvt1 tumors. (A) Tumor tissue was extracted from control and MKR+/+ mice and subjected to SDS PAGE and Western blotting with antibodies to c-Myc, MMP-9, IR-β, IGF-IR and VEGF. β-actin was included as a loading control. (B) Fold change in expression of c-Myc, MMP-9, IR-β, IGF-IR and VEGF in control and MKR+/+ tumor tissue compared to β-actin control. *, P ≤ 0.05. (C) Semi-quantitative PCR showing relative mRNA expression levels of Igf1, Igf-2 and β-actin in tumor tissue from control and MKR+/+ mice. (D) Densitometric quantification of DNA gel electrophoresis showing mRNA expression of Igf1 and Igf2 relative to β-actin.

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