7 Questions
What is the consequence of T cells recognizing self antigen without costimulatory molecules?
They turn on pro-apoptotic proteins
How do tolerant T cells eliminate long-exposed antigens?
Through an innate immune response
What is the mechanism by which activated T cells start killing each other?
Fas-Fas Ligand pathway
Why does an antigen persisting for a long time lead to the exhaustion of T cell clones?
Repeated exposure to the same antigen
What is the role of PD-1 in the context of persistent antigens?
Inhibiting T cell activation
In which scenario do we witness the depletion of memory cells, tolerance, or immunosuppression?
Tolerance
What happens when T cells receive signals from T regulatory cells?
They induce apoptosis through Fas-Fas Ligand pathway
Test your knowledge on immune system responses including the activation and deactivation of effector cells, production of antibodies, inflammation reduction, and cytokine secretion.
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