Behavioral Analysis of Dopaminergic Activation in Zebrafish and Rats Reveals Similar Phenotypes
Ek, Fredrik LU ; Malo, Marcus ; Åberg Andersson, Madelene LU ; Wedding, Christoffer ; Kronborg, Joel ; Svensson, Peder ; Waters, Susanna ; Petersson, Per LU and Olsson, Roger LU
(2016)
In ACS Chemical Neuroscience
7(5).
p.46-633
- Abstract
Zebrafish is emerging as a complement to mammals in behavioral studies; however, there is a lack of comparative studies with rodents and humans to establish the zebrafish as a predictive translational model. Here we present a detailed phenotype evaluation of zebrafish larvae, measuring 300-3000 variables and analyzing them using multivariate analysis to identify the most important ones for further evaluations. The dopamine agonist apomorphine has previously been shown to have a complex U-shaped dose-response relationship in the variable distance traveled. In this study, we focused on breaking down distance traveled into more detailed behavioral phenotypes for both zebrafish and rats and identified in the multivariate analysis low and... (More)
Zebrafish is emerging as a complement to mammals in behavioral studies; however, there is a lack of comparative studies with rodents and humans to establish the zebrafish as a predictive translational model. Here we present a detailed phenotype evaluation of zebrafish larvae, measuring 300-3000 variables and analyzing them using multivariate analysis to identify the most important ones for further evaluations. The dopamine agonist apomorphine has previously been shown to have a complex U-shaped dose-response relationship in the variable distance traveled. In this study, we focused on breaking down distance traveled into more detailed behavioral phenotypes for both zebrafish and rats and identified in the multivariate analysis low and high dose phenotypes with characteristic behavioral features. Further analysis of single parameters also identified an increased activity at the lowest concentration indicative of a U-shaped dose-response. Apomorphine increased the distance of each swim movement (bout) at both high and low doses, but the underlying behavior of this increase is different; at high dose, both bout duration and frequency increased whereas bout max speed was higher at low dose. Larvae also displayed differences in place preference. The low dose phenotype spent more time in the center, indicative of an anxiolytic effect, while the high-dose phenotype had a wall preference. These dose-dependent effects corroborated findings in a parallel rat study and previous observations in humans. The translational value of pharmacological zebrafish studies was further evaluated by comparing the amino acid sequence of the dopamine receptors (D1-D4), between zebrafish, rats and humans. Humans and zebrafish share 100% of the amino acids in the binding site for D1 and D3 whereas D2 and D4 receptors share 85-95%. Molecular modeling of dopamine D2 and D4 receptors indicated that nonconserved amino acids have limited influence on important ligand-receptor interactions.
(Less)
- author
- Ek, Fredrik
LU
; Malo, Marcus
; Åberg Andersson, Madelene
LU
; Wedding, Christoffer
; Kronborg, Joel
; Svensson, Peder
; Waters, Susanna
; Petersson, Per
LU
and Olsson, Roger
LU
- organization
- publishing date
- 2016-05-18
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Journal Article
- in
- ACS Chemical Neuroscience
- volume
- 7
- issue
- 5
- pages
- 14 pages
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- pmid:26947759
- scopus:84969872491
- wos:000376334000013
- ISSN
- 1948-7193
- DOI
- 10.1021/acschemneuro.6b00014
- language
- English
- LU publication?
- yes
- id
- e0c0b4a5-b05f-4593-8fff-32692aef8341
- date added to LUP
- 2016-10-25 21:14:51
- date last changed
- 2024-04-19 11:04:53
@article{e0c0b4a5-b05f-4593-8fff-32692aef8341,
abstract = {{<p>Zebrafish is emerging as a complement to mammals in behavioral studies; however, there is a lack of comparative studies with rodents and humans to establish the zebrafish as a predictive translational model. Here we present a detailed phenotype evaluation of zebrafish larvae, measuring 300-3000 variables and analyzing them using multivariate analysis to identify the most important ones for further evaluations. The dopamine agonist apomorphine has previously been shown to have a complex U-shaped dose-response relationship in the variable distance traveled. In this study, we focused on breaking down distance traveled into more detailed behavioral phenotypes for both zebrafish and rats and identified in the multivariate analysis low and high dose phenotypes with characteristic behavioral features. Further analysis of single parameters also identified an increased activity at the lowest concentration indicative of a U-shaped dose-response. Apomorphine increased the distance of each swim movement (bout) at both high and low doses, but the underlying behavior of this increase is different; at high dose, both bout duration and frequency increased whereas bout max speed was higher at low dose. Larvae also displayed differences in place preference. The low dose phenotype spent more time in the center, indicative of an anxiolytic effect, while the high-dose phenotype had a wall preference. These dose-dependent effects corroborated findings in a parallel rat study and previous observations in humans. The translational value of pharmacological zebrafish studies was further evaluated by comparing the amino acid sequence of the dopamine receptors (D1-D4), between zebrafish, rats and humans. Humans and zebrafish share 100% of the amino acids in the binding site for D1 and D3 whereas D2 and D4 receptors share 85-95%. Molecular modeling of dopamine D2 and D4 receptors indicated that nonconserved amino acids have limited influence on important ligand-receptor interactions.</p>}},
author = {{Ek, Fredrik and Malo, Marcus and Åberg Andersson, Madelene and Wedding, Christoffer and Kronborg, Joel and Svensson, Peder and Waters, Susanna and Petersson, Per and Olsson, Roger}},
issn = {{1948-7193}},
keywords = {{Journal Article}},
language = {{eng}},
month = {{05}},
number = {{5}},
pages = {{46--633}},
publisher = {{The American Chemical Society (ACS)}},
series = {{ACS Chemical Neuroscience}},
title = {{Behavioral Analysis of Dopaminergic Activation in Zebrafish and Rats Reveals Similar Phenotypes}},
url = {{http://dx.doi.org/10.1021/acschemneuro.6b00014}},
doi = {{10.1021/acschemneuro.6b00014}},
volume = {{7}},
year = {{2016}},
}