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Fig. 3 | Breast Cancer Research

Fig. 3

From: Follistatin is a metastasis suppressor in a mouse model of HER2-positive breast cancer

Fig. 3

Follistatin (FST) expression is repressed in mouse mammary tumors and is restored using an Fst-expressing transgene. a Endogenous Fst expression in normal mouse mammary glands compared with human epidermal growth factor receptor 2, receptor tyrosine protein kinase erbB-2, proto-oncogene Neu (Her2/Neu)-induced mammary tumors (*p < 0.05). b Immunohistochemical analysis of endogenous FST expression in mouse mammary epithelia and tumors. c Fst expression in Neu (single) and Neu/FST (bitransgenic) tumors. Fst messenger RNA expression was assessed by quantitative reverse transcription-polymerase chain reaction (**p < 0.01). d Hematoxylin and eosin (H&E)-stained mammary tumors from Neu (single) and Neu/FST (bitransgenic) mice are shown in the upper two panels. Immunohistochemistry for total (endogenous and transgenic) FST expression in lower two panels in single (left) and bitransgenic (right) tumors

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