Immunohistochemical staining was performed as previously described [22 (link)] using primary antibodies against ANGPTL8 (1:200 dilution; Abcam, Cambridge, UK), α-smooth muscle actin (α-SMA) (1:200 dilution; ZM0003, ZSGB-BIO, Beijing, China), or galectin 2 (MAC-2) (1:200 dilution; Abcam, Cambridge, UK), followed by staining with secondary antibodies. Images were obtained with a Ni-UNikon Upright Microscope equipped with a DS-Ri2 color CCD (Nikon, Tokyo, Japan).
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