六色多重荧光免疫组化染色试剂盒（鼠兔通用二抗）

Fig. 3. HHLA2/KIR3DL3 interaction drives CD8+ T cell exhaustion in EGFR-mutant lung cancer.(B) Representative immunofluorescence images showing expression of KIR3DL3 (yellow) on CD8+ T cells (light blue) and HHLA2 expression (green) in Napsin A+ tumor cells (pink) in EGFR-mutant lung cancer tissue. The merged and magnified panels highlighted spatial proximity between HHLA2+ tumor cells and KIR3DL3+ CD8+ T cells, suggesting a potential ligand–receptor interaction. Nuclei were stained with DAPI (blue).