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(a) KC proliferation in monolayer coculture with (right column) and without (left column) the contact/ingrowth of DP cells. DP cells are labelled with RFP. Nuclei are counterstained with DAPI. Scale bar is 200 μm. Fluorescent microscopy. (b) KC proliferation rate in clumps depending on DP cell contact/ingrowth. ∗p < 0.05, Mann–Whitney U test.
