Immune and stromal cell networks

Immune and stromal cell networks refer to the complex, multi-directional communication systems between immune cells (such as T cells, macrophages, and neutrophils) and non-immune structural components of tissues, including fibroblasts, endothelial cells, and the extracellular matrix (ECM). These networks are fundamental to maintaining physiological tissue homeostasis and coordinating responses to injury, but they are frequently dysregulated in chronic diseases like cancer and fibrosis (Nature Reviews Cancer, 2021). In the context of oncology, the tumor microenvironment (TME) utilizes these networks to create an immunosuppressive shield, where stromal cells like cancer-associated fibroblasts (CAFs) secrete factors such as TGF-beta to exclude or deactivate cytotoxic T cells (Frontiers in Immunology, 2020). While 'Immune and stromal cell networks' is a conceptual framework rather than a single molecular target, it is a major focus of drug development aimed at 'remodeling' the microenvironment to improve the efficacy of immunotherapies. Therapeutic strategies often involve targeting specific nodes within these networks, such as cytokine receptors or matrix-modifying enzymes, to break the cycle of chronic inflammation or immune evasion. Understanding the spatial and functional heterogeneity of these networks is essential for the development of next-generation precision medicines that treat the tissue as a whole system.

Other names

Tumor microenvironment (TME)Stroma-immune crosstalkCellular interactomeTissue microenvironmentImmune-stromal axis

Modulation of the tissue or tumor microenvironment by targeting specific signaling nodes (e.g., cytokines, growth factors, or surface receptors) to disrupt immunosuppressive or pro-fibrotic cellular crosstalk.