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. 2014 Jul 10;3(2):324–338. doi: 10.1016/j.stemcr.2014.06.005

Figure 4.

Figure 4

Expression of MHC Markers on Fetal and Adult Skin

(A) Fetal skin was observed to express lower levels of MHC molecules than adult skin. Scale bar, 100 μm.

(B) Flow-cytometric analysis for MHC I and MHC II was performed on cultured fetal (16 and 22 weeks) and adult keratinocytes. Purple tracings represent the stained population, whereas red tracings set the background reference with an isotype-matched antibody. Positive staining (%) was defined by a gate that included 3% of the background population.