Exploratory study shows 68Ga-NK224 PET/CT assesses PD-L1 expression in A549 cells, highlighting intertumor heterogeneity.
Supplementary Figure S4. (A-B) PD-L1 expression in A549 and A549-hPD-L1 cells assessed by flow cytometry. (C) Cell uptake assay of 68Ga-NK224 in A549 and A549-hPD-L1cells, including blocking studies with an unlabeled precursor to confirm specificity (n=3/group).
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Zhao et al. (2025) studied this question.
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