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Target intelligence / Profile preview
Natural Killer Cell-Mediated Cytotoxicity (NK Cell-Mediated Cytotoxicity)
- Target
- NK Cell-Mediated Cytotoxicity
- Molecular classification
- Immune effector mechanism, Cellular process
01
Overview
Natural killer (NK) cell-mediated cytotoxicity is the process by which NK cells, a subset of innate lymphocytes, recognize and destroy abnormal cells such as virally infected or tumorigenic cells. This function is a cornerstone of the innate immune response and provides rapid defense against threats without prior sensitization. NK cells achieve cytotoxicity through granule exocytosis (releasing perforin and granzymes) and death receptor-mediated apoptosis (using FasL, TRAIL, etc.). This process is tightly regulated by a balance of activating and inhibitory receptor signals.
- Other names
- NK cell cytotoxicityNK mediated killingNatural Killer cell lysis
02
Mechanism of action
N/A - This is a process, not a target.
03
Biological functions
Immune responseCell deathCytotoxicityAnti-viral defenseAnti-tumor defense
04
Disease associations
Viral infectionsCancerImmunodeficiencyAutoimmune diseases (indirectly)
05
Safety considerations
Cytokine release syndrome (CRS) with NK cell-based therapiesOn-target, off-tumor toxicityImmune-related adverse events (irAEs)
06
Interacting drugs
Cancer immunotherapies (e.g., checkpoint inhibitors, CAR-NK cells)
2 more in the full profile.
07
Biomarkers
NK cell activity levelsExpression of activating and inhibitory receptorsLevels of perforin and granzymesTarget cell surface markers (e.g., ligands for activating receptors, MHC class I)
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