Immunofluorescence 39 (link) and immunohistochemistry 7 (link) assays were performed as previously reported. In both cases, images were acquired using an Olympus BX51 microscope (Olympus Corporation, Tokyo, Japan) equipped with various objective lenses (10×, 20×, and 40×) and a DP50 camera. Images were processed using DPC controller software (Olympus Corporation).
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