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May 24, 2026Frontiers in Cell and Developmental BiologyOpen Access

Evolutionary constraints impose multiple checkpoints that block mammalian sensory hair cell regeneration

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Authors

XZXiaoyi ZhangZSZhan SuDGDongmei Guan

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Overview

Comparative analysis reveals evolutionary barriers to auditory hair cell regeneration in mammals, suggesting new therapeutic strategies.

Key Points

  • The study aims to understand the molecular mechanisms that limit sensory hair cell regeneration in mammals compared to other vertebrates.
  • Cross-species comparative analysis of regenerative capacity in vertebrates
  • Identification of core regenerative components and species-specific regulatory networks
  • Development of a 'Multiple Checkpoints' hypothesis explaining regeneration limitations in mammals
  • Regeneration is robust in fish and amphibians but nearly absent in mammals due to evolutionary constraints.
  • Key checkpoints include quiescence of progenitor cells and a deteriorating microenvironment.
  • Effective therapeutic strategies must target these multiple barriers to restore hearing.

Cite This Study

Zhang et al. (2026) studied this question.

synapsesocial.com/papers/6a12950b48a0ea166567130fhttps://doi.org/10.3389/fcell.2026.1835217
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1The Field of Hair Cell Regeneration Is Ready for Input from Genomics and Epigenetics2025 · 1 citations
  2. 2The Field of Hair Cell Regeneration Is Ready for Input from Genomics and Epigenetics2025
  3. 3Single-cell atlas comparison across vertebrates reveals evolution of auditory cell types and mechanisms for hair cell regeneration2024 · 1 citations
  4. 4Insights into the regulation of hearing regeneration2024 · 2 citations
  5. 5Advances towards biological hearing restoration by genetic reprogramming2026