Imaging Cell Competition in Ex-Vivo Drosophila Adult Brains
Year: 2025
Type: article
Abstract: Live imaging has been instrumental in understanding cellular dynamics in Drosophila tissues, but technical limitations have prevented long-term visualization of cell competition in adult brains. Here, we describe a simple ex-vivo protocol that enables extended live imaging of adult Drosophila brains for up to 32 hours. The method relies on non-supplemented Schneider’s Drosophila medium and hydrophobic interactions to maintain brain stability during imaging, eliminating the need for complex culture conditions or embedding procedures. We validate this approach by studying cell competition in the optic lobes following traumatic brain injury, where cell competition is expected to occur with a peak at 48 hours after damage. We demonstrate the utility of this method by visualizing the expression of the fitness checkpoint Azot in a loser cell and its subsequent elimination. This protocol offers a versatile platform for studying cell competition and other cellular processes requiring extended observation of the adult Drosophila brain.
Source: Methods and Protocols
DOI: 10.3390/mps9010001
Institutions: Northwestern University, Champalimaud Foundation
Language: English
Subfield: Cellular and Molecular Neuroscience
Field: Neuroscience
Domain: Life Sciences
Open Access status: gold
Estimated APC paid: $2,172
Awards: G1346039328, G1516346500, G2624059698, G323769159, Programa Champalimaud de Investigação, G3643264494, Cell Competition in Drosophila’s organs: the effects of suboptimal cells accumulation and an insight into the winner-loser communication in a competition scenario., G4724859719, G5485649731, G7019664719, G946021960
OpenAlex ID: W7116757121