The TUBO tumor line was originally derived from mammary gland tumors developed in MMTV‐Her2 transgenic mice.[31] Although both LipoGC and μGC could be located in the sentinel popliteal lymph nodes 24 h after inoculation, most μGC particles accumulated in the subcapsular space known for DC enrichment, while the LipoGC particles spread more evenly across the lymph node (Figure 1g, left panels). Here, ERBB2 is linked to neoplasm.