A microfluidic chip for immobilization and imaging of Ciona intestinalis larvae

Sea squirts (Tunicata) are chordates and develop a swimming larva with a small and defined number of individually identifiable cells. This offers the prospect of connecting specific stimuli to behavioral output and characterizing the neural activity that links these together. Here, we describe the d...

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Main Authors: Poncelet, G, Parolini, L, Shimeld, SM
Format: Journal article
Language:English
Published: Wiley 2024
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author Poncelet, G
Parolini, L
Shimeld, SM
author_facet Poncelet, G
Parolini, L
Shimeld, SM
author_sort Poncelet, G
collection OXFORD
description Sea squirts (Tunicata) are chordates and develop a swimming larva with a small and defined number of individually identifiable cells. This offers the prospect of connecting specific stimuli to behavioral output and characterizing the neural activity that links these together. Here, we describe the development of a microfluidic chip that allows live larvae of the sea squirt Ciona intestinalis to be immobilized and recorded. By generating transgenic larvae expressing GCaAMP6m in defined cells, we show that calcium ion levels can be recorded from immobilized larvae, while microfluidic control allows larvae to be exposed to specific waterborne stimuli. We trial this on sea water carrying increased levels of carbon dioxide, providing evidence that larvae can sense this gas.
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spelling oxford-uuid:98b4c1d3-d95c-41ef-856e-fae924fbb8d12024-06-07T20:05:02ZA microfluidic chip for immobilization and imaging of Ciona intestinalis larvaeJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:98b4c1d3-d95c-41ef-856e-fae924fbb8d1EnglishJisc Publications RouterWiley2024Poncelet, GParolini, LShimeld, SMSea squirts (Tunicata) are chordates and develop a swimming larva with a small and defined number of individually identifiable cells. This offers the prospect of connecting specific stimuli to behavioral output and characterizing the neural activity that links these together. Here, we describe the development of a microfluidic chip that allows live larvae of the sea squirt Ciona intestinalis to be immobilized and recorded. By generating transgenic larvae expressing GCaAMP6m in defined cells, we show that calcium ion levels can be recorded from immobilized larvae, while microfluidic control allows larvae to be exposed to specific waterborne stimuli. We trial this on sea water carrying increased levels of carbon dioxide, providing evidence that larvae can sense this gas.
spellingShingle Poncelet, G
Parolini, L
Shimeld, SM
A microfluidic chip for immobilization and imaging of Ciona intestinalis larvae
title A microfluidic chip for immobilization and imaging of Ciona intestinalis larvae
title_full A microfluidic chip for immobilization and imaging of Ciona intestinalis larvae
title_fullStr A microfluidic chip for immobilization and imaging of Ciona intestinalis larvae
title_full_unstemmed A microfluidic chip for immobilization and imaging of Ciona intestinalis larvae
title_short A microfluidic chip for immobilization and imaging of Ciona intestinalis larvae
title_sort microfluidic chip for immobilization and imaging of ciona intestinalis larvae
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