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GeneSwitches: ordering gene expression and functional events in single-cell experiments.

Elaine Y Cao1, John F Ouyang1, Owen J L Rackham1

  • 1Program in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, 169857, Singapore.

Bioinformatics (Oxford, England)
|February 15, 2020
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Summary
This summary is machine-generated.

GeneSwitches identifies the precise order of gene expression changes over pseudo-time in single-cell RNA sequencing data. This tool helps researchers understand dynamic biological processes and functional events by ordering gene switching events.

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Area of Science:

  • Computational Biology
  • Genomics
  • Bioinformatics

Background:

  • Single-cell RNA sequencing (scRNA-seq) enables gene expression analysis at the individual cell level.
  • Pseudo-time trajectory inference tools order cells based on gene expression similarity, but lack temporal ordering of gene changes.
  • Identifying the sequence of gene expression events is crucial for understanding dynamic biological processes.

Purpose of the Study:

  • To introduce GeneSwitches, a novel computational tool for ordering gene expression and functional events along pseudo-time trajectories.
  • To enable the precise determination of gene switching on/off dynamics in single-cell data.
  • To facilitate the investigation of dynamic changes in surface markers and functional ontologies.

Main Methods:

  • GeneSwitches employs a statistical framework utilizing logistic regression.
  • The tool analyzes single-cell pseudo-time trajectories to identify gene expression dynamics.
  • It determines the order of gene activation and inactivation along the inferred pseudo-time.

Main Results:

  • GeneSwitches accurately determines the precise order of gene expression changes over pseudo-time.
  • The tool allows for the identification of sequential appearance of surface markers.
  • It enables comparison of gene switching orders between different pseudo-temporal processes.

Conclusions:

  • GeneSwitches provides a robust method for analyzing dynamic gene expression patterns in single-cell data.
  • The tool enhances the interpretability of pseudo-time trajectories by ordering critical biological events.
  • GeneSwitches offers valuable insights into developmental trajectories and cellular transitions.