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Updated: Apr 27, 2026

Harnessing the Power of MicroRNA Cargoes in Small Extracellular Vesicles Released from Fresh-Frozen Human Brain Sections
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Non-destructive transcriptomics via vesicular export.

Niklas Armbrust1, Martin Grosshauser1,2, Julian Geilenkeuser1

  • 1Institute for Synthetic Biomedicine, Helmholtz Munich, Neuherberg, Germany.

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|April 25, 2026
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Summary
This summary is machine-generated.

Non-destructive transcriptomics by vesicular export (NTVE) allows longitudinal RNA expression analysis in living cells. This method enables multi-time-point monitoring of cellular states and responses without cell lysis.

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Area of Science:

  • Molecular Biology
  • Genomics
  • Cell Biology

Background:

  • Current transcriptomics methods require cell fixation or lysis, preventing longitudinal studies of RNA expression in living cells.
  • Analyzing dynamic changes in cellular states over time is crucial for understanding biological processes.

Purpose of the Study:

  • To develop a non-destructive method for longitudinal RNA expression analysis in living cells.
  • To enable multi-time-point monitoring of cellular transcriptomes and responses to perturbations.

Main Methods:

  • Developed non-destructive transcriptomics by vesicular export (NTVE) using stabilized RNA reporter barcodes packaged into virus-like particles (VLPs).
  • Utilized an engineered poly(A)-binding protein adapter for endogenous transcript export.
  • Employed bioorthogonal affinity handles for multichannel tracking of co-cultured cells.
  • Demonstrated NTVE's ability to capture transcriptome changes in response to perturbations within the same cells over time.

Main Results:

  • NTVE exports endogenous transcripts with high concordance to conventional RNA-seq.
  • The platform successfully captures dynamic transcriptome changes in response to genetic and chemical perturbations.
  • NTVE was used for daily non-destructive transcriptomic profiling during hiPSC differentiation, monitoring lineage-specific marker dynamics.

Conclusions:

  • NTVE provides a novel platform for non-destructive, longitudinal transcriptomic analysis in living cells.
  • This method facilitates the study of dynamic cellular processes and responses over multiple time points.
  • NTVE is applicable to various cell types and biological investigations, including stem cell differentiation.