Journal: Pharmacological research

Article Title: Ectopic expression of NKG7 enhances CAR-T function and improves the therapeutic efficacy in liquid and solid tumors.

doi: 10.1016/j.phrs.2024.107506

Figure Lengend Snippet: Fig. 4. NKG7 promotes the proliferation of CAR-T cells by enhancing the IL-2 signaling pathway. (A and B) GSEA of DNA replication and cell cycle between B7H3- CAR-TNKG7 and B7H3-CAR-T cells following B7H3 protein stimulation for 6 h. (C) Volcano plot of T cell proliferation-related genes between B7H3-CAR-TNKG7 and B7H3-CAR-T cells. (D) Heatmaps of significant T cell proliferation-related genes. (E and F) IL-2 expression of CAR-T cells was measured by FCM analysis following target cell stimulation for 6 h. (G) Statistics for (E and F). (H) The proliferation of CAR-T cells was detected by a CFSE assay. (I and J) GSEA of the Jak-STAT and PI3K- Akt pathways between B7H3-CAR-TNKG7 and B7H3-CAR-T cells following B7H3 protein stimulation for 6 h. (K) The IL-2 signaling pathway (p-AKT (Ser473), AKT, p- ERK (Thr202/Tyr204), ERK, p-STAT5 (Thr694) and STAT5) in CAR-T cells were explored by WB assays. ***P < 0.001.

Article Snippet: After blocking with 5 % nonfat milk at room temperature for 1 h, the membranes were incubated with primary antibodies against NKG7 (Cat No. 84835, 1:1000, CST), AKT (Cat No. A11016, 1:1000, ABclonal), p-AKT (Ser473) (Cat No. AP0140, 1:1000, ABclonal), ERK (Cat No. 4695, 1:1000, CST), p-ERK (Thr202/Tyr204) (Cat No. 4370, 1:1000, CST), STAT5 (Cat No. 25656, 1:1000, CST), pSTAT5 (Thr694) (Cat No. 4322, 1:1000, CST) and β-actin (Cat No. 66009–1-Ig, 1:5000, Proteintech) overnight at 4◦C.

Techniques: Expressing, Cell Stimulation, CFSE Assay