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. 2017 Sep 29;7:12423. doi: 10.1038/s41598-017-12403-6

Figure 4.

Figure 4

Exosomes from irradiated cells activate the AKT-pathway. (a) Western blot of phospho-mTOR (Ser2448) and mTOR of cells which were incubated for 24 hours with exosomes isolated either from irradiated cells (EXO 6 Gy) or from non-irradiated cells (EXO 0 Gy). Normalization was performed to ACTIN and to cells treated with exosomes from non-irradiated cells (EXO 0 Gy). Cropped blots are displayed [n = 4; ± SD; two-sided, one-sample t-test; p-value < 0.05]. (b) Western blot of phospho-mTOR (Ser2448) and mTOR of cells which were pretreated for 1 hour with 25 µM Dynasore and incubated for 24 hours with exosomes isolated either from irradiated cells (EXO 6 Gy) or from non-irradiated cells (EXO 0 Gy). Normalization was performed to ACTIN and to cells treated with exosomes from non-irradiated cells (EXO 0 Gy). Cropped blots are displayed [n = 3; ±SD; two-sided, one-sample t-test]. (c) Western blot of phospho-S6 Ribosomal Protein (Ser240/244) and S6 Ribosomal Protein of cells which were incubated for 24 hours with exosomes isolated either from irradiated cells (EXO 6 Gy) or from non-irradiated cells (EXO 0 Gy). Normalization was performed to ACTIN and to cells treated with exosomes from non-irradiated cells (EXO 0 Gy). Cropped blots are displayed [n = 7; ±SD; two-sided, one-sample t-test; p-value < 0.05]. (d) MMP2 and MMP9 activity in the supernatants 24 hours after transfer of exosomes isolated from irradiated (EXO 6 Gy) and from non-irradiated cells (EXO 0 Gy) on BHY cells. Normalization was performed to cells treated with EXO 0 Gy. Cropped gels are displayed [n = 6; ±SD; two-sided, one-sample t-test; p-value < 0.05].