Systemic immune and tissue microenvironment

The systemic immune and tissue microenvironment refers to the complex, integrated network of immune cells, signaling molecules, and extracellular matrix components that exist both locally within tissues and systemically throughout the body (Binnewies et al., 2018, Nature Medicine). It is not a single molecular target but rather a physiological context that determines the progression of diseases such as cancer, chronic inflammation, and infections (Hiam-Galvez et al., 2021, Nature Reviews Cancer). In oncology, the tumor microenvironment (TME) specifically influences tumor growth, metastasis, and response to therapy through interactions between malignant cells and surrounding stroma or infiltrating immune cells (Pitt et al., 2016, Immunity). Therapeutic strategies often aim to modulate this environment—for example, by reprogramming immunosuppressive cells or neutralizing inhibitory cytokines—to restore effective anti-tumor immunity (Chen & Mellman, 2017, Nature). Understanding the crosstalk between local tissue environments and systemic immune status is critical for the development of precision immunotherapies and predicting patient response to treatment (Spitzer et al., 2017, Cell).

Other names

Tumor microenvironmentImmune microenvironmentSystemic immunityTissue nicheImmune landscape

Not applicable as this represents a complex biological environment and physiological state rather than a discrete molecular target.