System-wide immune and tissue microenvironment

The system-wide immune and tissue microenvironment refers to the complex, integrated network of immune cells, stromal components, extracellular matrix proteins, and soluble signaling factors that define the physiological or pathological state of tissues throughout the body (Binnewies et al., 2018, Nature Medicine). It is not a single molecular target but a multi-scale biological context that influences disease progression and therapeutic response (Schulz & Gasteiger, 2022, Nature Reviews Immunology). In oncology, the tumor microenvironment (TME) is a critical subset of this system, where the interaction between malignant cells and the surrounding immune landscape determines the success of immunotherapies (Anderson & Simon, 2020, Cell). Drugs typically target specific receptors or ligands within this environment, such as checkpoint inhibitors or cytokine antagonists, to modulate the overall system's behavior (Chen & Mellman, 2017, Nature). Understanding this environment requires holistic approaches like spatial transcriptomics and systemic immune profiling to identify how local tissue changes reflect or drive global immune status (Spitzer & Nolan, 2016, Cell). This systemic perspective is essential for predicting immune-related adverse events and optimizing combination therapies that aim to shift the environment from a pro-tumorigenic to an anti-tumorigenic state.

Other names

Immune microenvironmentTissue microenvironmentSystemic immune landscapeTumor microenvironment (TME)

Not applicable as this is a biological system rather than a single molecular target.