N alone (irradiated control) compared to cells without any treatment (control). (D)Expression of ECM collagen in B16F10 melanoma cells after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without any treatment (control). (E) Expression of Hsp47 in B16F10 melanoma cells after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without any treatment (control). (F)Expression of Hsp47in normal melanocytes after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without any treatment (control). Cells Chebulagic acid site incubated with FITC-conjugated isotype-specific antibodies were used as negative controls. ns: not significant compared to control. *p,0.05; **p,0.01; ***p,0.001 compared to control. doi:10.1371/journal.pone.0059639.gfactor-a receptor) or anti-ki67 antibody, as well as 10 mL of Triton X-100 (0.1 ) for permeabilization for 1 h at 4uC. The cells were then incubated with secondary antibody conjugated with Alexa 
Fluor 488 (Life technologies, USA) for 1 h at 4uC, followed by resuspension of the cells in FACS flow buffer. Cells incubated with FITC-conjugated isotype-specific antibodies were used as negative controls. The samples were analyzed for fluorescence (FL-1 channel) on a Becton Dickinson FACScalibur flow cytometerusing the Cell Quest acquisition 80-49-9 software. Information about the used flow cytometry antibodies is in Table S1.Inoculation of B16F10 Melanoma Cells in MiceMurine B16F10 cells were cultivated in RPMI-1640 medium supplemented with 10 FBS, 2 mM-Lglutamine, 1 mM sodium pyruvate and 100 IU/ml of penicillin and 100 mg/ml of streptomycin (Invitrogen Inc, USA). Cell suspensions were detached from plates with 0.2 trypsin. After trypsin inactivationFigure 3. Expression of intrinsic apoptotic markers in B16F10 melanoma cells and normal melanocytes (mean 6 s.d.) measured by flow cytometry. (A) Expression of Bcl-2 in B16F10 melanoma cells after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without any treatment (control). (B)Expression of Bcl-2 in normal melanocytes after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without any treatment 1081537 (control). (C) Expression of Bax in B16F10 melanoma cells after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without any treatment (control). (D)Expression of Bax in normal melanocytes after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without any treatment (control).Cells incubated with FITC-conjugated isotype-specific antibodies were used as negative controls. ns: not significant compared to control. *p,0.05; **p,0.01; ***p,0.001 compared to control. doi:10.1371/journal.pone.0059639.gApoptosis in Melanoma Cells after BNCTFigure 4. Expression of intrinsic apoptotic markers in B16F10 melanoma cells and normal melanocytes (mean 6 s.d.) measured by flow cytometry. (A) Expression of Bad in B16F10 melanoma cells after BNCT treatment and neutron irradiation alone 16574785 (irradiated control) compared to cells without any treatment (control). (B)Expression of Bad in normal melanocytes after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without any treatment (control).(C) Cytochrome c expression in B16F10 melanoma cells after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without any treatment (contro.N alone (irradiated control) compared to cells without any treatment (control). (D)Expression of ECM collagen in B16F10 melanoma cells after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without any treatment (control). (E) Expression of Hsp47 in B16F10 melanoma cells after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without any treatment (control). (F)Expression of Hsp47in normal melanocytes after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without any treatment (control). Cells incubated with FITC-conjugated isotype-specific antibodies were used as negative controls. ns: not significant compared to control. *p,0.05; **p,0.01; ***p,0.001 compared to control. doi:10.1371/journal.pone.0059639.gfactor-a receptor) or anti-ki67 antibody, as well as 10 mL of Triton X-100 (0.1 ) for permeabilization for 1 h at 4uC. The cells were then incubated with secondary antibody conjugated with Alexa Fluor 488 (Life technologies, USA) for 1 h at 4uC, followed by resuspension of the cells in FACS flow buffer. Cells incubated with FITC-conjugated isotype-specific antibodies were used as negative controls. The samples were analyzed for fluorescence (FL-1 channel) on a Becton Dickinson FACScalibur flow cytometerusing the Cell Quest acquisition software. Information about the used flow cytometry antibodies is in Table S1.Inoculation of B16F10 Melanoma Cells in MiceMurine B16F10 cells were cultivated in RPMI-1640 medium supplemented with 10 FBS, 2 mM-Lglutamine, 1 mM sodium pyruvate and 100 IU/ml of penicillin and 100 mg/ml of streptomycin (Invitrogen Inc, USA). Cell suspensions were detached from plates with 0.2 trypsin. After trypsin inactivationFigure 3. Expression of intrinsic apoptotic markers in B16F10 melanoma cells and normal melanocytes (mean 6 s.d.) measured by flow cytometry. (A) Expression of Bcl-2 in B16F10 melanoma cells after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without any treatment (control). (B)Expression of Bcl-2 in normal melanocytes after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without any treatment 1081537 (control). (C) Expression of Bax in B16F10 melanoma cells after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without 
any treatment (control). (D)Expression of Bax in normal melanocytes after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without any treatment (control).Cells incubated with FITC-conjugated isotype-specific antibodies were used as negative controls. ns: not significant compared to control. *p,0.05; **p,0.01; ***p,0.001 compared to control. doi:10.1371/journal.pone.0059639.gApoptosis in Melanoma Cells after BNCTFigure 4. Expression of intrinsic apoptotic markers in B16F10 melanoma cells and normal melanocytes (mean 6 s.d.) measured by flow cytometry. (A) Expression of Bad in B16F10 melanoma cells after BNCT treatment and neutron irradiation alone 16574785 (irradiated control) compared to cells without any treatment (control). (B)Expression of Bad in normal melanocytes after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without any treatment (control).(C) Cytochrome c expression in B16F10 melanoma cells after BNCT treatment and neutron irradiation alone (irradiated control) compared to cells without any treatment (contro.
