Multiple immune cell populations and tissue microenvironments

Multiple immune cell populations and tissue microenvironments refers to the integrated system of diverse immune cells, such as T cells, B cells, macrophages, and dendritic cells, along with the surrounding stromal and extracellular components within a specific tissue (Binnewies et al., 2018, Nature Medicine). This concept is not a single molecular target but rather a complex biological landscape that dictates the success or failure of therapeutic interventions, particularly in oncology and chronic inflammation (Gajewski et al., 2013, Nature Immunology). In the context of cancer, the tumor microenvironment (TME) often creates an immunosuppressive niche that protects malignant cells from immune surveillance.\n\nDrugs targeting this system, such as immune checkpoint inhibitors or cytokine therapies, aim to shift the balance of these populations from a pro-tumorigenic to an anti-tumorigenic state (Anderson et al., 2017, Cancer Cell). Understanding the spatial and functional heterogeneity of these environments is crucial for developing effective precision medicines and overcoming drug resistance. Therapeutic strategies often involve combinations of agents to reprogram the metabolic and signaling pathways shared across these diverse cell types.

Other names

Tumor microenvironmentImmune landscapeImmune contextureTumor immune microenvironment (TIME)Tissue microenvironmentTME

Modulation of the collective immune response and physical/chemical properties of the tissue environment to enhance therapeutic efficacy or overcome immunosuppression.