Compartment and Cell-type Specific Hypoxia Responses in the Developing Brain

Overview

Journal Biol Open

Specialty Biology

Date 2020 Aug 21

PMID 32816692

Citations 9

Authors

Martin Baccino-Calace

Daniel Prieto

Rafael Cantera

Boris Egger

Affiliations

Soon will be listed here.

Abstract

Environmental factors such as the availability of oxygen are instructive cues that regulate stem cell maintenance and differentiation. We used a genetically encoded biosensor to monitor the hypoxic state of neural cells in the larval brain of The biosensor reveals brain compartment and cell-type specific levels of hypoxia. The values correlate with differential tracheolation that is observed throughout development between the central brain and the optic lobe. Neural stem cells in both compartments show the strongest hypoxia response while intermediate progenitors, neurons and glial cells reveal weaker responses. We demonstrate that the distance between a cell and the next closest tracheole is a good predictor of the hypoxic state of that cell. Our study indicates that oxygen availability appears to be the major factor controlling the hypoxia response in the developing brain and that cell intrinsic and cell-type specific factors contribute to modulate the response in an unexpected manner.This article has an associated First Person interview with the first author of the paper.

Citing Articles

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