Islet-MSC Interface

The "Islet-MSC Interface" refers to the dynamic physiological and molecular interaction zone between pancreatic islet cells and mesenchymal stem/stromal cells (MSCs), especially in contexts such as islet transplantation, tissue engineering, or in vitro co-culture. This interface encompasses extracellular matrix components, secreted paracrine factors, cell adhesion molecules, and reciprocal signaling, which together aim to improve islet cell viability, engraftment, immune protection, and insulin secretion. While not a single molecule or canonical drug target, the interface is a focus for regenerative strategies in diabetes, with MSCs shown to influence islet cell function via both direct cell–cell contact and the secretion of trophic factors such as growth factors, anti-inflammatory proteins, and matrix components[1][3][5].

Other names

Islet–mesenchymal stem cell interfaceIslet–MSC microenvironmentIslet–MSC crosstalk

Paracrine and autocrine factor secretion (e.g., MSCs secrete growth factors, cytokines, and ECM proteins that promote islet survival and function such as annexin A1, VEGF, MMPs, etc.)