PECAM1 and neoplasm: In line with this, in both B16‐F10 and YUMMER 1.7 tumors, loss of TEC‐autophagy increased the presence of CD3+ T‐lymphocytes around CD31+ TECs, particularly at the more vascularized tumor edge (Fig 1I and J), suggesting an increased ability to attract and recruit T‐cells, irrespective of the immunogenicity of the melanoma models used.