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Idiopathic pulmonary fibrosis (IPF) lung tissue sections stained with antibodies against CUX1 and α-smooth muscle actin (SMA). The figure shows fibrotic loci that were stained by CUX1 and α-SMA antibodies. Alveolar cells around the loci were positive for CUX1 and α-SMA. CUX1 localised within α-SMA-positive cells. Normal lung sections were used as negative control for CUX1 and α-SMA.
