Abnormally activated immune cells

Abnormally activated immune cells" refers broadly to immune cell types (such as T cells, B cells, macrophages, neutrophils, NK cells) that have become activated in a sustained and dysregulated manner, often triggering or exacerbating disease processes such as autoimmunity, chronic inflammation, or cancer. This is a functional state and does not specify a unique molecular entity, receptor, or family. Activation typically involves upregulated signaling through innate and adaptive immune cell pathways—such as those involving Toll-like receptors, cytokine/cytokine receptor interactions, JAK/STAT, PI3K, MAPK, and NF-κB signaling—and leads to excessive production of cytokines, chemokines, or immune effector molecules[1][2][4][5][8]. Therapeutic interventions against diseases involving "abnormally activated immune cells" are generally directed at underlying pathways, surface receptors, or immunosuppressive mechanisms, rather than the broad cell activation state itself[5][8]. This term should be replaced with the specific cell type or molecular target involved for structured pharmacological or mechanistic work.

Other names

Activated immune cellsPathologically activated immune cellsDysregulated immune cells