Paracrine factor released by mesenchymal stem cell

Paracrine factors released by mesenchymal stem cells" is not a singular molecule or receptor but rather refers to a **diverse collection of bioactive proteins, cytokines, growth factors, chemokines, and extracellular vesicles** secreted by mesenchymal stem cells (MSCs)[1][3][2]. These factors act through paracrine signaling to modulate the function of neighboring cells, contributing to tissue regeneration, immunomodulation, angiogenesis, anti-apoptosis, anti-fibrosis, and chemotaxis. Commonly identified members include VEGF, HGF, FGF2, IGF-1, interleukins (e.g., IL6), SDF-1, angiopoietins, and more[1][3]. The 'target' in this case is not a well-defined molecular entity (e.g., receptor, enzyme, transporter) but an **aggregate secretome**, posing challenges for therapeutic targeting and characterization. MSC paracrine factors play roles in the repair and regeneration of multiple tissues, especially in cardiovascular disease, but they cannot be mapped to a single canonical target class and cannot be described by a unique abbreviation or identifier[1][2][3]. The field remains focused on leveraging this secretome for cell-free therapy but also faces challenges regarding reproducibility, safety, and specificity.

Other names

MSC paracrine factorsfactors secreted by mesenchymal stem cellssecretome of mesenchymal stem cellsMSC-derived soluble factors

Paracrine signaling that acts on nearby cells to stimulate regeneration, angiogenesis, cell survival, and immunomodulation