TY - JOUR
T1 - Spatiotemporal dissection of the cell cycle with single-cell proteogenomics
AU - Mahdessian, Diana
AU - Cesnik, Anthony J.
AU - Gnann, Christian
AU - Danielsson, Frida
AU - Stenström, Lovisa
AU - Arif, Muhammad
AU - Zhang, Cheng
AU - Le, Trang
AU - Johansson, Fredric
AU - Shutten, Rutger
AU - Bäckström, Anna
AU - Axelsson, Ulrika
AU - Thul, Peter
AU - Cho, Nathan H.
AU - Carja, Oana
AU - Uhlén, Mathias
AU - Mardinoglu, Adil
AU - Stadler, Charlotte
AU - Lindskog, Cecilia
AU - Ayoglu, Burcu
AU - Leonetti, Manuel D.
AU - Pontén, Fredrik
AU - Sullivan, Devin P.
AU - Lundberg, Emma
N1 - Funding Information:
Acknowledgements We acknowledge the entire staff of the HPA program. We acknowledge S. Ito and H. Masai for providing the stable U2OS FUCCI cell line; the Eukaryotic Single Cell Genomics (ESCG) facility at SciLifeLab for single-cell sequencing; M. Otrocka for access to imaging infrastructure; S. Besson and F. Wong for help with annotating the imaging data using IDR metadata templates (https://idr.openmicroscopy.org); P. Ranefall and C. Wählby for providing support for establishing the Cell Profiler pipeline; A. Kundaje for providing support at Stanford University; and L. M. Smith for providing access to computational resources. Funding was provided by the Knut and Alice Wallenberg Foundation (2016.0204) and the Swedish Research Council (2017-05327) to E.L.
Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer Nature Limited.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/2/25
Y1 - 2021/2/25
N2 - The cell cycle, over which cells grow and divide, is a fundamental process of life. Its dysregulation has devastating consequences, including cancer1–3. The cell cycle is driven by precise regulation of proteins in time and space, which creates variability between individual proliferating cells. To our knowledge, no systematic investigations of such cell-to-cell proteomic variability exist. Here we present a comprehensive, spatiotemporal map of human proteomic heterogeneity by integrating proteomics at subcellular resolution with single-cell transcriptomics and precise temporal measurements of individual cells in the cell cycle. We show that around one-fifth of the human proteome displays cell-to-cell variability, identify hundreds of proteins with previously unknown associations with mitosis and the cell cycle, and provide evidence that several of these proteins have oncogenic functions. Our results show that cell cycle progression explains less than half of all cell-to-cell variability, and that most cycling proteins are regulated post-translationally, rather than by transcriptomic cycling. These proteins are disproportionately phosphorylated by kinases that regulate cell fate, whereas non-cycling proteins that vary between cells are more likely to be modified by kinases that regulate metabolism. This spatially resolved proteomic map of the cell cycle is integrated into the Human Protein Atlas and will serve as a resource for accelerating molecular studies of the human cell cycle and cell proliferation.
AB - The cell cycle, over which cells grow and divide, is a fundamental process of life. Its dysregulation has devastating consequences, including cancer1–3. The cell cycle is driven by precise regulation of proteins in time and space, which creates variability between individual proliferating cells. To our knowledge, no systematic investigations of such cell-to-cell proteomic variability exist. Here we present a comprehensive, spatiotemporal map of human proteomic heterogeneity by integrating proteomics at subcellular resolution with single-cell transcriptomics and precise temporal measurements of individual cells in the cell cycle. We show that around one-fifth of the human proteome displays cell-to-cell variability, identify hundreds of proteins with previously unknown associations with mitosis and the cell cycle, and provide evidence that several of these proteins have oncogenic functions. Our results show that cell cycle progression explains less than half of all cell-to-cell variability, and that most cycling proteins are regulated post-translationally, rather than by transcriptomic cycling. These proteins are disproportionately phosphorylated by kinases that regulate cell fate, whereas non-cycling proteins that vary between cells are more likely to be modified by kinases that regulate metabolism. This spatially resolved proteomic map of the cell cycle is integrated into the Human Protein Atlas and will serve as a resource for accelerating molecular studies of the human cell cycle and cell proliferation.
UR - http://www.scopus.com/inward/record.url?scp=85101540882&partnerID=8YFLogxK
U2 - 10.1038/s41586-021-03232-9
DO - 10.1038/s41586-021-03232-9
M3 - Article
C2 - 33627808
AN - SCOPUS:85101540882
SN - 0028-0836
VL - 590
SP - 649
EP - 654
JO - Nature
JF - Nature
IS - 7847
ER -