Deep generative modeling of transcriptional dynamics for RNA velocity analysis in single cells.
Deep generative modeling of transcriptional dynamics for RNA velocity analysis in single cells.
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DOI:
10.1038/s41592-023-01994-w
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发表时间:
2024-01
期刊:
影响因子:
48
通讯作者:
Yosef N
中科院分区:
文献类型:
--
作者:
Gayoso A;Weiler P;Lotfollahi M;Klein D;Hong J;Streets A;Theis FJ;Yosef N
RNA velocity has been rapidly adopted to guide interpretation of transcriptional dynamics in snapshot single-cell data; however, current approaches for estimating RNA velocity lack effective strategies for quantifying uncertainty and determining the overall applicability to the system of interest. Here, we present veloVI (velocity variational inference), a deep generative modeling framework for estimating RNA velocity. veloVI learns a gene-specific dynamical model of RNA metabolism and provides a transcriptome-wide quantification of velocity uncertainty. We show that veloVI compares favorably to previous approaches with respect to goodness of fit, consistency across transcriptionally similar cells and stability across preprocessing pipelines for quantifying RNA abundance. Further, we demonstrate that veloVI’s posterior velocity uncertainty can be used to assess whether velocity analysis is appropriate for a given dataset. Finally, we highlight veloVI as a flexible framework for modeling transcriptional dynamics by adapting the underlying dynamical model to use time-dependent transcription rates. veloVI enhances RNA velocity analysis with uncertainty quantification and extensibility by deep generative modeling of gene-specific transcriptional dynamics.
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