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. 2022 Feb 22;58(2):169–178. doi: 10.1007/s11626-022-00656-z

Figure 2.

Figure 2.

Crosstalk of β1 integrin and growth factor receptor signaling regulates clonogenic radiation survival. (A) Clonogenic survival of irradiated GD25β1A and GD25β1B cells on polystyrene (PS) or fibronectin (FN) with or without fetal calf serum (FCS). (B) Representative western blot of caspase-3, cleaved caspase-3 and β-actin expression in serum starved GD25β1A and GD25β1B cells on PS or FN before and 24 h after 6 Gy X-ray irradiation. (C) Representative western blot of the integrin α4, α5, α8, α9, αV subunits and corresponding β-actin expression in GD25β1A and GD25β1B. (D, E) Cell cycle distribution of (D) unirradiated and (E) irradiated GD25β1A and GD25β1B cells on PS or FN with or without FCS. (AE) Results show mean ± SD (n = 3); t-test FCS vs. no FCS; *P < 0.05; **P < 0.01, ***P < 0.001; t-test 0 Gy vs. 6 Gy; #P < 0.05; ##P < 0.01, ###P < 0.001.