2′3′-cGAMP (tlrl-nacga23-02) was purchased from InvivoGen. Ibrutinib (BTK inhibitor; no. S2680), PF-562271 (FAK inhibitor; no. S2890), PP2 (Src inhibitor; no. S7008), saracatinib (Fyn inhibitor; no. S1006), amuvatinib (c-Kit inhibitor; no. S1244), ruxolitinib (Jak1/2 inhibitor; no. S1378), alectinib (ALK inhibitor; no. S2762), gefitinib (EGFR inhibitor; no. S1025), AZD9291 (EGFR inhibitor; no. S7297), and R406 (Syk inhibitor; no. S2194) were obtained from Selleck. Polyethyleneimine (PEI; no. 195444) was purchased from Mpbio, and the transfection procedure was as previously described (16 (link), 33 (link)). Lipofectamine 2000 (no. 11668019) was obtained from Invitrogen. Antibodies against EGFR (no. 4267), GFP (no. 2956), phospho-Syk (Tyr525/526) (no. 2710), Syk (no. 13198), tubulin (no. 2146), and actin (no. 3700) were from Cell Signaling, and hemagglutinin (HA) antibody (ab18181) was purchased from Abcam. STING antibody (A3575) and GST (AE001) antibodies were obtained from Abclonal Technology.
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