Effect of UVA irradiation on growth factors release in SZ95 sebocytes
(A) Experimental scheme of UVA irradiation of SZ95 sebocytes.
(B) Phase-contrast analysis of SZ95 sebocytes after 4-UVA 5 J/cm2 irradiations.
(C) The mRNA expression levels of POMC, EDN1, SCF, and b-FGF in SZ95 sebocytes after 24 and 48h post 1-UVA and 48h post three or 4-UVA 5 J/cm2 irradiations. Results are presented as the mean ± SD of three independent experiments and are expressed as the fold change respect to untreated control cells (∗p < 0.05, ∗∗p < 0.01).
(D) Protein quantitation by ELISA of α-MSH, EDN1, SCF, and b-FGF in SZ95 sebocytes after 24 and 48h post 1-UVA and 48h post three or 4-UVA 5 J/cm2 irradiations. Results are presented as the mean ± SD of three independent experiments and are expressed in absolute quantities (∗p < 0.05, ∗∗p < 0.01 vs Ctr).
(E) The mRNA expression levels and protein quantitation by ELISA of POMC/α-MSH, EDN1, SCF, and b-FGF in SZ95 sebocytes after 72h or 1 week post 7-UVA 5 J/cm2 irradiations. Data represent the mean ± SD of three independent experiments. For mRNA levels, results are expressed as the fold change respect to untreated control cells (∗∗p < 0.01). For ELISA assay, results are expressed in the absolute quantities (∗∗p < 0.01 vs Ctr).