Microfluidic platform accelerates tissue processing into single cells for molecular analysis and primary culture models

Jeremy A. Lombardo, Marzieh Aliaghaei, Quy H. Nguyen, Kai Kessenbrock and Jered B. Haun ()
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Jeremy A. Lombardo: University of California, Irvine
Marzieh Aliaghaei: University of California, Irvine
Quy H. Nguyen: University of California, Irvine
Kai Kessenbrock: University of California, Irvine
Jered B. Haun: University of California, Irvine

Nature Communications, 2021, vol. 12, issue 1, 1-15

Abstract: Abstract Tissues are complex mixtures of different cell subtypes, and this diversity is increasingly characterized using high-throughput single cell analysis methods. However, these efforts are hindered, as tissues must first be dissociated into single cell suspensions using methods that are often inefficient, labor-intensive, highly variable, and potentially biased towards certain cell subtypes. Here, we present a microfluidic platform consisting of three tissue processing technologies that combine tissue digestion, disaggregation, and filtration. The platform is evaluated using a diverse array of tissues. For kidney and mammary tumor, microfluidic processing produces 2.5-fold more single cells. Single cell RNA sequencing further reveals that endothelial cells, fibroblasts, and basal epithelium are enriched without affecting stress response. For liver and heart, processing time is dramatically reduced. We also demonstrate that recovery of cells from the system at periodic intervals during processing increases hepatocyte and cardiomyocyte numbers, as well as increases reproducibility from batch-to-batch for all tissues.

Date: 2021
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DOI: 10.1038/s41467-021-23238-1

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