MDCK (canine), 293T (human), A549 (human), 1321N1 (human), EidNi/41 (bat; Eidolon helvum) (54 (link)), and CarperAEC.B-3 (bat; Carollia perspicillata) (55 (link)) cells were cultured in Dulbecco's modified Eagle's medium (DMEM) supplemented with 10% fetal bovine serum (FBS), 100 U/ml penicillin, and 100 μg/ml streptomycin (Gibco Life Technologies). HAP-1 cells (Horizon Discovery, Austria) were cultured in Iscove's modified Dulbecco's medium (IMDM) supplemented with the same additives, as well as 200 μM GlutaMAX (Gibco Life Technologies). The HAP-1 cell line engineered by CRISPR/Cas9 to have a 2-bp deletion in the PIK3R2 gene (encoding p85β) was purchased from Horizon Discovery (catalog no. HZGHC003292c006). All cells were maintained at 37°C with 5% CO2.
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