Fibroblasts secrete various biological substances, such as Vascular Endothelial Growth Factor (VEGF)
AHK-Cu, or Alanine-Histidine-Lysine-Copper, is a naturally occurring tripeptide complexed with copper that has been investigated for its role in activating copper-dependent enzymatic processes and modulating extracellular matrix proteins involved in tissue structure and repair
This cascade may possibly lead to the proliferation, survival, migration, and differentiation of endothelial cells, which are posited to be the building blocks of new blood vessels
While there are several types of these receptors, like VEGFR-1, VEGFR-2, and VEGFR-3, it appears that the primary mediator of angiogenic response is most likely VEGFR-2
Fibroblasts are considered to lead to the production of two complex compounds
[2] These apparent properties of collagen may reduce the appearance of creases and wrinkling along the skin surface