BCL2 and hydrops fetalis: For example, the activation of Wnt signalling in dermal papilla cells used in stimulating hair growth; MSC-derived signalling and growth factors obtained by platelets could utilized in the improvement of hair growth via regulating cellular proliferation through inducing cell growth (binding growth factors, such as PDGF, TGF-β, and VEGF), and HF development (Wnt activation), and suppress apoptotsis (Bcl-2 activation and release) [67, 249].