The attached video is all about different growth factors and cell players in our body, where are they made, where they are stored, where they act and their actions. Watch this video for more information. Timeline: 0:00 Growth Factors 1:36 Cell players (Sources and Targets) 2:32 Epidermal GF 3:13 Transforming GF -alpha 3:35 Hepatocyte GF 4:10 Vascular Endothelial GF 4:40 Platelet Derived GF 5:15 Fibroblast GF 5:45 Tranforming GF - beta 6:13 Keratinocyte GF 7:00 IGF -1 7:41 TNF 8:28 Interleukins 8:50 Interferons