First-pass extracted concept

Sonic hedgehog gradient patterning of neural progenitors

Candidate: concept label1 source documents4 linked claims
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Aliases

morphogen patterning, Shh gradients

Evidence Snippets

Using a tunable light-inducible gene expression system, we generate long-range Shh gradients that pattern neural progenitors into spatially distinct progenitor domains mimicking the spatial arrangement of neural progenitors found in vivo during vertebrate neural tube development.
Evidence 1Source 1DOIprovenance

Supporting Sources

Linked Claims

Claim 1mechanistic relationshipsupports2024Source 1DOI

The level and duration of morphogen exposure govern the acquisition and maintenance of cell fates.

Quoted textsource-backed
we probe how the level and duration of morphogen exposure govern the acquisition and maintenance of cell fates
Claim 2patterning resultsupports2024Source 1DOI

A tunable light-inducible gene expression system generates long-range Shh gradients that pattern neural progenitors into spatially distinct progenitor domains resembling vertebrate neural tube organization in vivo.

Quoted textsource-backed
Using a tunable light-inducible gene expression system, we generate long-range Shh gradients that pattern neural progenitors into spatially distinct progenitor domains mimicking the spatial arrangement of neural progenitors found in vivo during vertebrate neural tube development.
Claim 3quantitative measurementsupports2024Source 1DOI

Shh has an extracellular half-life of about 1 hour in the reported tissue clearance measurements.

Quoted textsource-backed
We measure tissue clearance rates, revealing that Shh has an extracellular half-life of about 1h
Claim 4timescale comparisonsupports2024Source 1DOI

Shh turnover is substantially faster than downstream gene expression dynamics, indicating continual gradient renewal during patterning.

Quoted textsource-backed
The rate of Shh turnover is substantially faster than the downstream gene expression dynamics, indicating that the gradient is continually renewed during patterning.