1. Microfluidic live tracking and transcriptomics of cancer-immune cell doublets link intercellular proximity and gene regulation.
- Author
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Flores, Bianca C. T., Chawla, Smriti, Ma, Ning, Sanada, Chad, Kujur, Praveen Kumar, Yeung, Rudy, Bellon, Margot B., Hukari, Kyle, Fowler, Brian, Lynch, Mark, Chinen, Ludmilla T. D., Ramalingam, Naveen, Sengupta, Debarka, and Jeffrey, Stefanie S.
- Subjects
GENETIC regulation ,CELL communication ,TRIPLE-negative breast cancer ,GENE expression profiling ,PHYSICAL measurements ,KILLER cells - Abstract
Cell–cell communication and physical interactions play a vital role in cancer initiation, homeostasis, progression, and immune response. Here, we report a system that combines live capture of different cell types, co-incubation, time-lapse imaging, and gene expression profiling of doublets using a microfluidic integrated fluidic circuit that enables measurement of physical distances between cells and the associated transcriptional profiles due to cell–cell interactions. We track the temporal variations in natural killer—triple-negative breast cancer cell distances and compare them with terminal cellular transcriptome profiles. The results show the time-bound activities of regulatory modules and allude to the existence of transcriptional memory. Our experimental and bioinformatic approaches serve as a proof of concept for interrogating live-cell interactions at doublet resolution. Together, our findings highlight the use of our approach across different cancers and cell types. A microfluidic system combines the capture, co-incubation, time-lapse imaging, and gene expression profiling of doublets to measure the distances between cells and associated transcriptional profiles due to cell–cell interactions. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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