CXCL9 and skin squamous cell carcinoma: The basal squamous state coincided with inflammatory states such as CXCL9+ macrophage, LAMP3+ DC, and mesenchymal-derived interferon states exclusively in tumor tissues, suggesting the intrinsic feature of basal squamous originated cancer types (HNSC and skin squamous cell carcinoma) that triggers the immune cell infiltration (Fig. 3F).