CDK4 and melanoma: Similarly, the expression levels of CDK2, CDK4, KIT, and VWF in the melanoma cells with high proliferation capabilities were higher than those in the melanoma cells with poor proliferation capabilities (t = 2.427, 4.193, 0.562, and 2.609, respectively; logFC = 0.182, 0.257, 0.037, and 0.176, respectively; p = 0.025, < 0.001, 0.581, and 0.017, respectively; Figure 3).