Confronting false discoveries in single-cell differential expression [article]

Jordan W. Squair, Matthieu Gautier, Claudi Kathe, Mark A. Anderson, Nicholas D. James, Thomas H. Hutson, Rémi Hudelle, Taha Qaiser, Kaya J.E. Matson, Quentin Barraud, Ariel J. Levine, Gioele La Manno (+2 others)
2021 bioRxiv   pre-print
Differential expression analysis in single-cell transcriptomics enables the dissection of cell-type-specific responses to perturbations such as disease, trauma, or experimental manipulation. While many statistical methods are available to identify differentially expressed genes, the principles that distinguish these methods and their performance remain unclear. Here, we show that the relative performance of these methods is contingent on their ability to account for variation between biological
more » ... replicates. Methods that ignore this inevitable variation are biased and prone to false discoveries. Indeed, the most widely used methods can discover hundreds of differentially expressed genes in the absence of biological differences. Our results suggest an urgent need for a paradigm shift in the methods used to perform differential expression analysis in single-cell data.
doi:10.1101/2021.03.12.435024 fatcat:uu5kny5p6zes3i53uakxyqpjwy