Multiple immune and stromal cell types via paracrine factors and surface adhesion molecules

The phrase "Multiple immune and stromal cell types via paracrine factors and surface adhesion molecules" does not refer to a single molecular target but rather describes the complex interaction network within the tumor microenvironment (TME) or a regenerative tissue niche. This system involves a diverse array of cells, including T lymphocytes, macrophages, dendritic cells, fibroblasts, and endothelial cells, which coordinate biological processes through secreted paracrine signals (e.g., cytokines, chemokines) and direct cell-to-cell adhesion (e.g., integrins, selectins). In pathological states like cancer, this network is often hijacked to create an immunosuppressive environment that protects malignant cells from immune surveillance and promotes metastasis. Therapeutic interventions targeting this system, such as mesenchymal stromal cell (MSC) therapies or multi-target checkpoint inhibitors, aim to disrupt these suppressive interactions and restore homeostatic or anti-tumor immune responses. Because it encompasses a broad range of cellular players and signaling pathways, it represents a systemic therapeutic focus rather than a discrete molecular entity.

Other names

Tumor microenvironmentTMEImmune-stromal nicheTissue microenvironmentCellular interaction network

Modulation of the cellular network through the secretion of cytokines and chemokines (paracrine factors) and direct cell-to-cell contact via adhesion molecules to alter the local immune landscape.