PUBLICATION
Rab8, Rab11, and Rab35 coordinate lumen and cilia formation during zebrafish left-right organizer development
- Authors
- Aljiboury, A.A., Ingram, E., Krishnan, N., Ononiwu, F., Pal, D., Manikas, J., Taveras, C., Hall, N.A., Da Silva, J., Freshour, J., Hehnly, H.
- ID
- ZDB-PUB-230516-40
- Date
- 2023
- Source
- PLoS Genetics 19: e1010765e1010765 (Journal)
- Registered Authors
- Hehnly, Heidi
- Keywords
- none
- MeSH Terms
-
- Animals
- Body Patterning/genetics
- Cilia/genetics
- Cilia/metabolism
- Cystic Fibrosis Transmembrane Conductance Regulator*/genetics
- Embryo, Nonmammalian/metabolism
- Zebrafish*/genetics
- Zebrafish*/metabolism
- Zebrafish Proteins/genetics
- Zebrafish Proteins/metabolism
- PubMed
- 37186603 Full text @ PLoS Genet.
Citation
Aljiboury, A.A., Ingram, E., Krishnan, N., Ononiwu, F., Pal, D., Manikas, J., Taveras, C., Hall, N.A., Da Silva, J., Freshour, J., Hehnly, H. (2023) Rab8, Rab11, and Rab35 coordinate lumen and cilia formation during zebrafish left-right organizer development. PLoS Genetics. 19:e1010765e1010765.
Abstract
An essential process during Danio rerio's left-right organizer (Kupffer's Vesicle, KV) formation is the formation of a motile cilium by developing KV cells which extends into the KV lumen. Beating of motile cilia within the KV lumen directs fluid flow to establish the embryo's left-right axis. However, the timepoint at which KV cells start to form cilia and how cilia formation is coordinated with KV lumen formation have not been examined. We identified that nascent KV cells form cilia at their centrosomes at random intracellular positions that then move towards a forming apical membrane containing cystic fibrosis transmembrane conductance regulator (CFTR). Using optogenetic clustering approaches, we found that Rab35 positive membranes recruit Rab11 to modulate CFTR delivery to the apical membrane, which is required for lumen opening, and subsequent cilia extension into the lumen. Once the intracellular cilia reach the CFTR positive apical membrane, Arl13b-positive cilia extend and elongate in a Rab8 dependent manner into the forming lumen once the lumen reaches an area of 300 μm2. These studies demonstrate the need to acutely coordinate Rab8, Rab11, and Rab35-mediated membrane trafficking events to ensure appropriate timing in lumen and cilia formation during KV development.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping