UVB-Induced Secretion of IL-1β Promotes Melanogenesis by Upregulating TYR/TRP-1 Expression In Vitro

Figure 3

Effects of IL-1β on B16 cell proliferation and melanin content. (a) Proliferation rates of B16 cells following the treatment with different concentrations of IL-1β (2 pg/μl, 3 pg/μl, 4 pg/μl, and 5 pg/μl) for 48 hours. (b) The melanin content of B16 cells was measured by the NaOH method after treatment with 4 pg/μl IL-1β medium for 48 hours. for all groups. .

(a)

(b)