Tissue microenvironment–resident immune cell

The term **tissue microenvironment / immune cells** refers to the diverse populations of lymphoid- and myeloid-lineage cells localized within specific tissues, including tumors, where they interact with stromal components, extracellular matrix, and vasculature. These cells regulate local immunity, tissue repair, inflammation, and—critically—in tumors, control resistance to drugs, metastatic spread, and therapeutic efficacy. This concept includes both adaptive (T cell, B cell) and innate (macrophage, dendritic cell, NK cell, neutrophil) subtypes, each playing complex roles in health and disease, especially cancer[1][2][3][4]. This entry lacks the required specificity for structured molecular target information (such as a unique receptor or protein) and represents an *overly broad, context-dependent concept* rather than a discrete target suitable for drug development or molecular characterization[1][3].

Other names

Tissue-resident immune cellTumor microenvironment immune cellTRIC (Tissue-resident immune cell, rarely used)TME immune cell

Immune checkpoint blockade (PD-1/PD-L1, CTLA-4) Cell depletion (anti-CD20, anti-CD3 therapies) Cytokine modulation (IL-2, IL-6, interferon modulation)