Immunohistochemistry (IHC) staining was performed in tissue sections as described previously (22 (link)). Sections were incubated with goat anti-NEK7 (ab166776, Abcam, Cambridge, MA, USA) and anti-GSDMD (ab219800, Abcam) overnight at 4°C and stained with a second antibody by using an SP-POD Kit according to the manufacturer’s instructions (#SP0041, Solarbio, Beijing, China). Multiplexed IHC (mIHC) was performed using a multiple fluorescent immunohistochemical staining kit (abs50012, Absin, Shanghai, China) according to the manufacturer’s instructions (23 (link)). Sections were observed using an optical microscope (BX53, Olympus, Tokyo, Japan).
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