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Journal Article

Fusion leads to effective segregation of damage during cell division: An analytical treatment.

MPS-Authors
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Lade,  Steven
Max Planck Institute of Molecular Cell Biology and Genetics, Max Planck Society;

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Coelho,  Miguel
Max Planck Institute of Molecular Cell Biology and Genetics, Max Planck Society;

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Tolic,  Iva M.
Max Planck Institute of Molecular Cell Biology and Genetics, Max Planck Society;

Gross,  Thilo
Max Planck Society;

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Citation

Lade, S., Coelho, M., Tolic, I. M., & Gross, T. (2015). Fusion leads to effective segregation of damage during cell division: An analytical treatment. Journal of Theoretical Biology, 378, 47-55.


Cite as: https://hdl.handle.net/21.11116/0000-0001-0430-4
Abstract
High levels of cellular damage are associated with impairment of cellular function and cell death. Partitioning the damage into a fraction of cells in the population improves population fitness and survival. We have previously shown that protein aggregates, resulting from misfolded, damaged proteins, fuse with each other leading to damage partitioning during cell division. Here, using an analytical treatment of aggregate fusion in dividing cells we present analytical expressions for two measures of damage partition: aggregate mass partition asymmetry between two dividing cells and standard deviation of total aggregate mass across the population. The scaling laws obtained demonstrate how damage partition may generally depend on characteristics of the cellular processes, facilitating better understanding of damage segregation in biological cells.