Light sheet microscopy imaging dataset of CAR-T-cell-mediated cytotoxicity

Area of Science:

• Immunology
• Cell Biology
• Biomedical Engineering

Background:

• Understanding CAR-T cell states is vital for advancing immunotherapy research.
• Previous live-cell imaging methods faced limitations in phototoxicity, resolution, and throughput, hindering detailed cell state analysis.
• Existing techniques struggle to capture the dynamic cytotoxic interactions between CAR-T cells and tumor cells.

Purpose of the Study:

• To develop an advanced microscopy imaging system for high-resolution, low-phototoxicity, and high-throughput observation of CAR-T cell cytotoxic effects.
• To overcome the limitations of previous imaging techniques in studying cell states and immunotherapy mechanisms.
• To provide a comprehensive dataset of CAR-T cell-tumor cell interactions for further research.

Main Methods:

• Development of a novel microscopy imaging system with subcellular resolution.
• Implementation of automated data reconstruction for enhanced image quality and analysis.
• Utilizing the system for long-term observation (up to 5 hours) of CAR-T cell cytotoxic processes with high temporal resolution (2.5 seconds/volume).

Main Results:

• Generated over 400 image sets detailing CAR-T cell cytotoxic effects on tumor cells.
• Achieved isotropic spatial resolution of 320 nm and temporal resolution up to 2.5 seconds per volume.
• Enabled long-term, high-fidelity observation of dynamic cellular interactions, overcoming previous phototoxicity and resolution constraints.

Conclusions:

• The developed microscopy system significantly advances the study of CAR-T cell states and immunotherapy mechanisms.
• The system provides unprecedented insights into the cytotoxic processes mediated by CAR-T cells.
• The freely available image datasets will facilitate further research and understanding in the field of cancer immunotherapy.