SiFT: uncovering hidden biological processes by probabilistic filtering of single-cell data

Zoe Piran and Mor Nitzan ()
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Zoe Piran: The Hebrew University
Mor Nitzan: The Hebrew University

Nature Communications, 2024, vol. 15, issue 1, 1-17

Abstract: Abstract Cellular populations simultaneously encode multiple biological attributes, including spatial configuration, temporal trajectories, and cell-cell interactions. Some of these signals may be overshadowed by others and harder to recover, despite the great progress made to computationally reconstruct biological processes from single-cell data. To address this, we present SiFT, a kernel-based projection method for filtering biological signals in single-cell data, thus uncovering underlying biological processes. SiFT applies to a wide range of tasks, from the removal of unwanted variation in the data to revealing hidden biological structures. We demonstrate how SiFT enhances the liver circadian signal by filtering spatial zonation, recovers regenerative cell subpopulations in spatially-resolved liver data, and exposes COVID-19 disease-related cells, pathways, and dynamics by filtering healthy reference signals. SiFT performs the correction at the gene expression level, can scale to large datasets, and compares favorably to state-of-the-art methods.

Date: 2024
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DOI: 10.1038/s41467-024-44757-7

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