Statistical inference with a manifold-constrained RNA velocity model uncovers cell cycle speed modulations
Across biological systems, cells undergo coordinated changes in gene expression, resulting in transcriptome dynamics that unfold within a low-dimensional manifold. While low-dimensional dynamics can be extracted using RNA velocity, these algorithms can be fragile and rely on heuristics lacking statistical control. Moreover, the estimated vector field is not dynamically consistent with the traversed gene expression manifold. To address these challenges, we introduce a Bayesian model of RNA velocity that couples velocity field and manifold estimation in a reformulated, unified framework, identifying the parameters of an explicit dynamical system. Focusing on the cell cycle, we implement VeloCycle to study gene regulation dynamics on one-dimensional periodic manifolds and validate its ability to infer cell cycle periods using live imaging. We also apply VeloCycle to reveal speed differences in regionally defined progenitors and Perturb-seq gene knockdowns. Overall, VeloCycle expands the single-cell RNA sequencing analysis toolkit with a modular and statistically consistent RNA velocity inference framework.
Authors
- Gioele La Manno (ORCID: https://orcid.org/0000-0003-1428-8757)
- Colas Droin (ORCID: https://orcid.org/0000-0002-1171-2869)
- Hugo J. F. Carvalho (ORCID: https://orcid.org/0000-0001-7373-971X)
- Félix Naef (ORCID: https://orcid.org/0000-0001-9786-3037)
- Alessandro Valente (ORCID: https://orcid.org/0000-0002-1958-6772)
- Albert Dominguez Mantes (ORCID: https://orcid.org/0000-0002-6224-0750)
- Daniil Bobrovskiy (ORCID: https://orcid.org/0000-0001-6390-9930)
- Lorenzo Figà Talamanca (ORCID: https://orcid.org/0000-0002-0846-7946)
- Luca Pinello (ORCID: https://orcid.org/0000-0003-1109-3823)
- Alex R. Lederer (ORCID: https://orcid.org/0000-0001-6381-5088)
- Antonio Herrera (ORCID: https://orcid.org/0000-0002-6248-1001)
- Irina M. Khven (ORCID: https://orcid.org/0000-0002-8813-0576)
- Pau Mulet Arabí
- Maxine Leonardi (ORCID: https://orcid.org/0000-0002-9780-9126)
Institutions
- Broad Institute (US)
- Harvard University (US)
- Massachusetts General Hospital (US)
- École Polytechnique Fédérale de Lausanne (CH)
Publication Details
- Journal
- Nature Methods
- Published
- 2024-10-31
- DOI
- https://doi.org/10.1038/s41592-024-02471-8
- Citations
- 19
- Primary Topic
- Single-cell and spatial transcriptomics
- Type
- article
- Field-Weighted Citation Impact
- 4.44
Funders
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
- National Human Genome Research Institute