Mechanisms of cellular mRNA transcript homeostasis

S Berry, L Pelkmans - Trends in Cell Biology, 2022 - cell.com
For most genes, mRNA transcript abundance scales with cell size to ensure a constant
concentration. Scaling of mRNA synthesis rates with cell size plays an important role, with …

Studying stochastic systems biology of the cell with single-cell genomics data

G Gorin, JJ Vastola, L Pachter - Cell Systems, 2023 - cell.com
Recent experimental developments in genome-wide RNA quantification hold considerable
promise for systems biology. However, rigorously probing the biology of living cells requires …

Interpretable and tractable models of transcriptional noise for the rational design of single-molecule quantification experiments

G Gorin, JJ Vastola, M Fang, L Pachter - Nature Communications, 2022 - nature.com
The question of how cell-to-cell differences in transcription rate affect RNA count
distributions is fundamental for understanding biological processes underlying transcription …

Modelling capture efficiency of single-cell RNA-sequencing data improves inference of transcriptome-wide burst kinetics

W Tang, ACS Jørgensen, S Marguerat, P Thomas… - …, 2023 - academic.oup.com
Motivation Gene expression is characterized by stochastic bursts of transcription that occur
at brief and random periods of promoter activity. The kinetics of gene expression burstiness …

Concentration fluctuations in growing and dividing cells: Insights into the emergence of concentration homeostasis

C Jia, A Singh, R Grima - PLoS computational biology, 2022 - journals.plos.org
Intracellular reaction rates depend on concentrations and hence their levels are often
regulated. However classical models of stochastic gene expression lack a cell size …

Coupling gene expression dynamics to cell size dynamics and cell cycle events: Exact and approximate solutions of the extended telegraph model

C Jia, R Grima - Iscience, 2023 - cell.com
The standard model describing the fluctuations of mRNA numbers in single cells is the
telegraph model which includes synthesis and degradation of mRNA, and switching of the …

Analytical time-dependent distributions for gene expression models with complex promoter switching mechanisms

C Jia, Y Li - SIAM Journal on Applied Mathematics, 2023 - SIAM
Classical gene expression models assume exponential switching time distributions between
the active and inactive promoter states. However, recent experiments have shown that many …

Poisson representation: a bridge between discrete and continuous models of stochastic gene regulatory networks

X Wang, Y Li, C Jia - Journal of the Royal Society …, 2023 - royalsocietypublishing.org
Stochastic gene expression dynamics can be modelled either discretely or continuously.
Previous studies have shown that the mRNA or protein number distributions of some simple …

Assessing markovian and delay models for single-nucleus RNA sequencing

G Gorin, S Yoshida, L Pachter - Bulletin of Mathematical Biology, 2023 - Springer
The serial nature of reactions involved in the RNA life-cycle motivates the incorporation of
delays in models of transcriptional dynamics. The models couple a transcriptional process to …

Feedback between stochastic gene networks and population dynamics enables cellular decision-making

P Piho, P Thomas - Science Advances, 2024 - science.org
Phenotypic selection occurs when genetically identical cells are subject to different
reproductive abilities due to cellular noise. Such noise arises from fluctuations in reactions …