In vitro expansion of CCR6-sorted Vδ2+ T cells
CCR6+ and CCR6- CD3+Vδ2+ T cells were sort purified from cryopreserved pigtail macaque splenocytes, and expanded for 13 days in autologous, Vδ2-depleted PBMCs with Zol (15 μM) and rhIL-2 (1x103 IU/mL) (n = 5 animals from 3 independent experiments).
(A) Schematic of in vitro CCR6-sorted Vδ2+ T cell expansion with Vδ2-depleted PBMCs. Diagram created with BioRenderer.com.
(B) Representative histogram of sorted CCR6+ (magenta) and CCR6- (cyan) Vδ2+ T cells. Vδ2- T cells are plotted in black. Sort gating strategy presented in Figure S3.
(C) FACS plots illustrating MACS-based Vδ2+ T cell depletion from autologous PBMCs.
(D) Fold change in expanded CCR6-sorted Vγ9Vδ2 T cells from baseline levels, calculated as described in the method details.
(E) Granzyme B (GzmB), CCR6, and CXCR3 expression on in-vitro-expanded, CCR6-sorted Vγ9Vδ2 T cells or whole PBMCs.
Each point on the graphs represents an individual animal for each condition. Lines and error bars indicate median and interquartile range. Statistics assessed by two-tailed Wilcoxon test (D) or Friedman test with Dunn’s multiple comparisons correction (E). ∗p < 0.05.