Characterization of Signal Regulatory Protein Alpha (SIRPα) Expression as a Biomarker of Functional CD8+ T Cell Activity During Immunological Exhaustion
The technology revolves around the discovery of SIRPα (Signal Regulatory Protein alpha) expression on CD8+ T cells as a novel biomarker for assessing T cell functionality during immune exhaustion, a state commonly induced by chronic infections and cancer. The unique expression profile of SIRPα on a subset of functional CD8+ T cells that retain cytotoxic capabilities despite an exhausted phenotype opens new avenues for therapeutic interventions.