Discuss the mechanism of action of cytotoxic-T cell.
Cytotoxic T-cells (CD8+ T-cells) are specialized immune warriors, crucial for identifying and eliminating infected or abnormal cells. Their activation and function involve multiple coordinated steps:
1. Activation:
2. Target recognition:
3. Killing mechanism:
4. Cytokine secretion:
5. Role in health:
Through this precise and regulated process, cytotoxic T-cells maintain immune balance, prevent infections from spreading, and safeguard the organism from malignancy.
Summary:
Cytotoxic T-cells (CD8+ T-cells) detect and destroy infected or abnormal cells. Activated by antigen-MHC I recognition and co-stimulatory signals, they release perforin and granzymes to induce apoptosis, while cytokines like IFN-γ enhance immune responses and maintain precision.
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