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Zebrafish Study Maps Bistable Switch and Transient ‘Neighborhoods’ That Sustain Olfactory Neurogenesis

Live imaging with single-cell RNA sequencing links noisy cues to committed fates.

Overview

  • Researchers at UAB and UIC report a bistable molecular switch that directs divergent progenitor fates and organizes transient cellular neighborhoods in the olfactory epithelium.
  • High-resolution imaging of live zebrafish embryos with quantitative fate tracking and single-cell RNA sequencing resolved signaling dynamics in real time.
  • The work shows how stochastic cues are funneled across cells and tissues to maintain a balance between progenitors and derivatives for sustained neuron production.
  • The peer-reviewed findings appear in Stem Cell Reports as a featured cover article in a Neural Stem Cells special issue.
  • The team plans comparative tests across vertebrates to assess generality and explore long-term therapeutic potential, with lead author Sriivatsan Govinda Rajan now at Memorial Sloan Kettering.