VEGF 165, also known as Vascular Endothelial Growth Factor 165, is a protein that plays a critical role in angiogenesis, the process of forming new blood vessels from pre-existing ones. It belongs to the vascular endothelial growth factor family and is one of the most well-studied isoforms of VEGF. Human VEGF 165 protein is a crucial regulator of angiogenesis, with implications in various physiological and pathological processes. Its study contributes to our understanding of blood vessel development, tissue repair, and the development of therapeutic strategies for diseases such as cancer.