简介：
Overview
This protocol describes a methodology for non-invasively tracking T cells genetically engineered to express chimeric antigen receptors in vivo using a clinically available platform. The sodium-iodide symporter serves as a sensitive reporter for imaging CAR T-cells by PET scan.
Key Study Components
Area of Science
- Immunology
- Cell Therapy
- Medical Imaging
Background
- Current imaging platforms for CAR T-cells are not clinically validated.
- The sodium-iodide symporter is a relevant reporter for PET imaging.
- Non-invasive tracking of infused cells can predict therapy efficacy and toxicity.
- Efficient imaging aids in evaluating T-cell trafficking and expansion.
Purpose of Study
- To provide a protocol for tracking CAR T-cells in vivo.
- To utilize PET imaging for monitoring T-cell behavior post-infusion.
- To develop strategies to improve CAR T-cell therapy outcomes.
Methods Used
- Isolation of peripheral blood mononuclear cells (PBMCs) using standard density gradient technique.
- Application of sodium-iodide symporter for imaging.
- Utilization of PET scans for non-invasive tracking.
- Evaluation of T-cell expansion and trafficking.
Main Results
- Demonstrated the feasibility of non-invasive tracking of CAR T-cells.
- Showed potential for predicting efficacy and toxicity of CAR T-cell therapy.
- Highlighted the method's applicability to various CAR constructs.
- Provided insights into T-cell behavior in vivo.
Conclusions
- The protocol enables effective monitoring of CAR T-cells.
- It can enhance understanding of T-cell dynamics in therapy.
- Future applications may improve CAR T-cell treatment strategies.
What is the sodium-iodide symporter?
It is a reporter used for imaging CAR T-cells via PET scans.
How are PBMCs isolated?
Using a standard density gradient technique from blood samples.
What is the significance of non-invasive tracking?
It allows for real-time monitoring of T-cell behavior without surgical intervention.
Can this method be applied to other CAR constructs?
Yes, the methodology can be adapted for various CAR constructs.
What are the potential benefits of this imaging technique?
It may predict therapy efficacy and toxicity, enhancing treatment strategies.
Is there a clinically validated platform for CAR T-cell imaging?
Currently, there is no clinically validated platform available.
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