Multiple immune cell populations and inflammatory pathways via secreted cytokines, exosomes, and cell–cell contact

This entry does not represent a single molecular target or receptor but rather describes a complex, multi-component biological process. It is most commonly used in scientific literature to define the broad mechanism of action of Mesenchymal Stem Cells (MSCs) and other cell-based therapies (Source: Nature Communications, 2020). These therapies do not hit a single target; instead, they orchestrate a systemic response by secreting a variety of soluble factors like IL-10 and PGE2, releasing exosomes that carry bioactive cargo, and engaging in direct cell-to-cell contact with T-cells, B-cells, and dendritic cells (Source: Stem Cell Research & Therapy, 2021). This integrated approach is designed to dampen hyper-inflammatory states and promote tissue repair in conditions such as acute respiratory distress syndrome (ARDS) and autoimmune disorders (Source: Frontiers in Immunology, 2022). Because it encompasses an entire network of signaling pathways and cell types, it is classified as a systemic mechanism rather than a discrete therapeutic target.

Other names

MSC-mediated immunomodulationSystemic immunomodulatory networkParacrine and juxtacrine immune regulationMultimodal inflammatory signaling

Simultaneous modulation of the immune microenvironment through the secretion of anti-inflammatory cytokines (e.g., IL-10, TGF-beta), the release of extracellular vesicles (exosomes) containing regulatory miRNAs and proteins, and direct physical interaction with immune cells such as T-cells and macrophages to induce anergy or phenotypic switching.