ALB and neoplasm: The EGFR-Vδ2hi-lo bsVHH-albumin retained the ability to support Vγ9Vδ2 T-cell enrichment and expansion in healthy donor PBMC (Supplementary Figure S4C) and also triggered Vγ9Vδ2 T-cell degranulation and lysis of SW480 tumor cells (Supplementary Figure S4D).