Imaging CRISPR-edited CAR-T cell therapies with optical and positron emission tomography reporters

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Abstract
Rationale: Chimeric antigen receptor (CAR) T cell therapies have shown remarkable success in treating hematological cancers and are increasingly demonstrating potential for solid tumors. CRISPR-based genome editing offers a promising approach to enhance CAR-T cell potency and safety, yet challenges such as inefficient tumor homing and toxicities in normal tissues, limit broader adoption. Advanced imaging technologies, including bioluminescence imaging (BLI) and positron emission tomography (PET), provide real-time visualization of CAR-T cell behavior in vivo. Here, we developed Trackable Reporter Adaptable CRISPR-Edited CAR (tRACE-CAR) T cells, a modular system for site-specific integration of CARs and imaging reporters.
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