Sources

"Generation and characterization of vestibular inner ear organoids from human pluripotent stem cells"

Generated 2026-04-12 07:16 UTC

Metadata

title
"Generation and characterization of vestibular inner ear organoids from human pluripotent stem cells"
kind
paper
status
ingested
added
2026-04-09T15:30:00+09:00
raw source
raw/sources/vandervalk_2025_generation_and_characterization_of_vestibular.pdf
article url
https://www.nature.com/articles/s41596-025-01191-3
published date
2026-02-01
organ
inner ear
protocol focus
updated Nature Protocols step-by-step vestibular inner ear organoid protocol
deep ingested
2026-04-09

Generation and characterization of vestibular inner ear organoids from human pluripotent stem cells

Source

Study design

  • Starting material: hPSCs (requires basic stem cell culture proficiency)
  • Protocol: formal Nature Protocols step-by-step extension of Koehler 2017's earlier inner ear work
  • Key timeline:
  • ~40 days to generate sensory hair cells
  • Maintenance up to 150 days for further development
  • Key references cited as scientific foundation:
  • Lee et al. Nat Protoc 17:1266-1305 (2022) — skin organoid base method
  • Koehler et al. Nat Biotechnol 35:583-589 (2017) — original inner ear organoid
  • van der Valk et al. Cell Rep 42:112623 (2023)
  • Steinhart et al. Development 150:dev201871 (2023)
  • Readouts: whole-mount imaging of cleared IEOs, vibratome sectioning of live and fixed IEOs, additional endpoint analyses

Key findings / scope

  • Formal protocol paper — documents detailed methodology for the inner ear organoid (IEO) approach that has matured since Koehler 2017.
  • Explicitly frames IEOs as a tool for disease modeling and therapeutic strategy development, especially in the context of recent gene therapies for genetic hearing loss.
  • Shared foundational methodology with skin organoid generation — reinforces the concept that surface ectoderm-derived organoid systems share patterning principles.
  • Provides methods for assessing late-stage organoids (cleared whole-mount imaging, vibratome sectioning).

Distinctive contribution in this corpus

  • Latest (2026) formal protocol document for inner ear organoids.
  • Bridges Koehler 2017's foundational work with recent advances.
  • Practical recipe for labs wanting to adopt IEO technology.
  • Demonstrates how a single "extended method" can span multiple organ systems (ear + skin).

Limitations and caveats

  • Vestibular bias — cochlear-identity hair cells remain elusive.
  • 40-150 days is long; maintenance is challenging.
  • Success depends on endogenous BMP signaling variability across hPSC lines.

Relevance to corpus

  • Canonical "recent protocol" for inner ear organoids.
  • Complements Koehler 2017 (original discovery) as the current best-practices reference.
  • Koehler 2017 — original discovery protocol.
  • Lee 2022 — shared ectodermal foundation (skin + hair organoid).

Open questions

  • Does the 2026 version improve cochlear hair cell generation over the 2017 approach?
  • How does IEO fidelity compare with recent He 2024 cross-protocol atlas (which is neural-focused)?
  • Can IEOs be used for drug screening for hearing loss at scale?

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