Label-free fluorescence lifetime imaging for the assessment of cell viability in living tumor fragments

Smith, J., C. Liu, J. Degnan, J. Ouellette, M. Conklin, A. Kellner, C. Scribano, L. Hrycyniak, J. Oliner, C. Zahm, E. Wait, K. Eliceiri, and J. Rafter. Label-Free Fluorescence Lifetime Imaging for the Assessment of Cell Viability in Living Tumor Fragments. J Biomed Opt, 2024, p. Epub PubMed Text.

Abstract

Significance: To enable non-destructive longitudinal assessment of drug agents in intact tumor tissue without the use of disruptive probes, we have designed a label-free method to quantify the health of individual tumor cells in excised tumor tissue using multiphoton fluorescence lifetime imaging microscopy (MP-FLIM).

Keywords: apoptosis; cancer; cell death; fluorescence lifetime; fluorescence lifetime microscopy; metabolism; multiphoton; necroptosis; nicotinamide adenine dinucleotide phosphate.