GSEA and expression profiling showed that OXPHOS pathway genes (e.g., NDUFB2, NDUFS6, COX7B) were upregulated in B7H3.BC CAR-T cells compared to MGA271 and Hu8H9 CAR-T cells (Figure S8J, K), consistent with their stem-like phenotype. This evidence concerns the gene NDUFS6 and breast cancer.