PUBLICATION

Studying the morphology, composition and function of the photoreceptor primary cilium in zebrafish

Authors
Masek, M., Zang, J., Mateos, J.M., Garbelli, M., Ziegler, U., Neuhauss, S.C.F., Bachmann-Gagescu, R.
ID
ZDB-PUB-230327-39
Date
2023
Source
Methods in cell biology   175: 9712897-128 (Chapter)
Registered Authors
Bachmann-Gagescu, Ruxandra, Garbelli, Marco, Masek, Markus, Neuhauss, Stephan
Keywords
Cilia, Correlative light and electron microscopy (CLEM), Immunohistochemistry, Outer segment isolation, Plastic sections, Transmission electron microscopy (TEM), Zebrafish
MeSH Terms
  • Animals
  • Cilia/metabolism
  • Ciliopathies*/metabolism
  • Humans
  • Retina
  • Retinal Cone Photoreceptor Cells/metabolism
  • Zebrafish*/metabolism
  • Zebrafish Proteins/metabolism
PubMed
36967148 Full text @ Meth. Cell. Biol.
Abstract
Vision is one of our dominant senses and its loss has a profound impact on the life quality of affected individuals. Highly specialized neurons in the retina called photoreceptors convert photons into neuronal responses. This conversion of photons is mediated by light sensitive opsin proteins, which are found in the outer segments of the photoreceptors. These outer segments are highly specialized primary cilia, explaining why retinal dystrophy is a key feature of ciliopathies, a group of diseases resulting from abnormal and dysfunctional cilia. Therefore, research on ciliopathies often includes the analysis of the retina with special focus on the photoreceptor and its outer segment. In the last decade, the zebrafish has emerged as an excellent model organism to study human diseases, in particular with respect to the retina. The cone-rich retina of zebrafish resembles the fovea of the human macula and thus represents an excellent model to study human retinal diseases. Here we give detailed guidance on how to analyze the morphological and ultra-structural integrity of photoreceptors in the zebrafish using various histological and imaging techniques. We further describe how to conduct functional analysis of the retina by electroretinography and how to prepare isolated outer segment fractions for different -omic approaches. These different methods allow a comprehensive analysis of photoreceptors, helping to enhance our understanding of the molecular and structural basis of ciliary function in health and of the consequences of its dysfunction in disease.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping