Stromal vascular fraction-mediated angiogenesis (SVF-mediated angiogenesis) (SVF-mediated angiogenesis)

Stromal vascular fraction (SVF)-mediated angiogenesis is a complex biological process where a heterogeneous population of cells derived from adipose tissue promotes the formation of new blood vessels through paracrine signaling [1: PubMed: 30631532]. The SVF contains adipose-derived stem cells (ASCs), endothelial progenitor cells, pericytes, and immune cells that collectively secrete a potent array of pro-angiogenic factors, including Vascular Endothelial Growth Factor (VEGF), Fibroblast Growth Factor (FGF), Hepatocyte Growth Factor (HGF), and Placental Growth Factor (PGF) [2: PubMed: 21683330]. These secreted factors stimulate the proliferation, migration, and tube formation of endothelial cells, facilitating the revascularization of ischemic tissues [3: PubMed: 23507774]. In clinical settings, this mechanism is leveraged through the transplantation of autologous SVF to treat conditions such as critical limb ischemia, myocardial infarction, and chronic wounds [4: PubMed: 28244340]. While highly promising for regenerative medicine, the therapeutic efficacy depends on the synergistic action of multiple growth factors rather than a single molecular target, making it a multi-component pathway [5: PubMed: 25599157]. Safety considerations include the potential for promoting pathological angiogenesis in occult malignancies and the inherent variability in the cellular composition of SVF between patients [6: PubMed: 29333471].

Other names

Angiogenesis via secretion of VEGF/FGF/HGF/PGF by SVF componentsAdipose-derived stromal vascular fraction paracrine signalingSVF-induced neovascularizationAdipose-derived regenerative cell-mediated angiogenesis

The mechanism involves the paracrine secretion of pro-angiogenic growth factors, including Vascular Endothelial Growth Factor (VEGF), Fibroblast Growth Factor (FGF), Hepatocyte Growth Factor (HGF), and Placental Growth Factor (PGF), by the heterogeneous cell population within the stromal vascular fraction (SVF). These factors bind to their respective receptors on endothelial cells, stimulating proliferation, migration, and the formation of new capillary structures to restore blood flow to ischemic tissues.