Immunofluorescence (IF) and immunohistochemistry (IHC) were performed as previously described in ref. 45 (link). Primary antibodies included anti-Nestin (Proteintech, 19483-1-AP, 1:200), anti-CUL4B (Sigma, C9995, 1:200), anti-OCN (Abcam, ab93876, 1:200) and anti-FABP4 (Abcam, ab92501, 1:200). Secondary antibodies included goat anti-rabbit or mouse horseradish peroxidase (HRP) and goat anti-rabbit or mouse Cy2 or Cy3 (Jackson ImmunoResearch, 1:200). Integral optical density (IOD) in IHC was quantified by ImageJ.
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