The Vertical and Horizontal Pathways in the Monkey Retina Are Modulated by Typical and Atypical Cannabinoid Receptors

The endocannabinoid (eCB) system has been found in all visual parts of the central ner-vous system and plays a role in the processing of visual information in many species, including monkeys and humans. Using anatomical methods, cannabinoid receptors are present in the monkey retina, particularly in...

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Autores principales: Joseph Bouskila, Maxime Bleau, Catarina Micaelo-Fernandes, Jean-François Bouchard, Maurice Ptito
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Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:ff36515b206340508c29e5281371c3292021-11-25T17:12:08ZThe Vertical and Horizontal Pathways in the Monkey Retina Are Modulated by Typical and Atypical Cannabinoid Receptors10.3390/cells101131602073-4409https://doaj.org/article/ff36515b206340508c29e5281371c3292021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4409/10/11/3160https://doaj.org/toc/2073-4409The endocannabinoid (eCB) system has been found in all visual parts of the central ner-vous system and plays a role in the processing of visual information in many species, including monkeys and humans. Using anatomical methods, cannabinoid receptors are present in the monkey retina, particularly in the vertical glutamatergic pathway, and also in the horizontal GABAergic pathway. Modulating the eCB system regulates normal retinal function as demonstrated by electrophysiological recordings. The characterization of the expression patterns of all types of cannabinoid receptors in the retina is progressing, and further research is needed to elucidate their exact role in processing visual information. Typical cannabinoid receptors include G-protein coupled receptor CB1R and CB2R, and atypical cannabinoid receptors include the G-protein coupled receptor 55 (GPR55) and the ion channel transient receptor potential vanilloid 1 (TRPV1). This review focuses on the expression and localization studies carried out in monkeys, but some data on other animal species and humans will also be reported. Furthermore, the role of the endogenous cannabinoid receptors in retinal function will also be presented using intraocular injections of known modulators (agonists and antagonists) on electroretinographic patterns in monkeys. The effects of the natural bioactive lipid lysophosphatidylglucoside and synthetic FAAH inhibitor URB597 on retinal function, will also be described. Finally, the potential of typical and atypical cannabinoid receptor acti-vity regulation in retinal diseases, such as age-related macular degeneration, diabetic retinopathy, glaucoma, and retinitis pigmentosa will be briefly explored.Joseph BouskilaMaxime BleauCatarina Micaelo-FernandesJean-François BouchardMaurice PtitoMDPI AGarticleretinatypical cannabinoid receptorsatypical cannabinoid receptorsimmunohistochemistryelectroretinographymonkeysBiology (General)QH301-705.5ENCells, Vol 10, Iss 3160, p 3160 (2021)
institution DOAJ
collection DOAJ
language EN
topic retina
typical cannabinoid receptors
atypical cannabinoid receptors
immunohistochemistry
electroretinography
monkeys
Biology (General)
QH301-705.5
spellingShingle retina
typical cannabinoid receptors
atypical cannabinoid receptors
immunohistochemistry
electroretinography
monkeys
Biology (General)
QH301-705.5
Joseph Bouskila
Maxime Bleau
Catarina Micaelo-Fernandes
Jean-François Bouchard
Maurice Ptito
The Vertical and Horizontal Pathways in the Monkey Retina Are Modulated by Typical and Atypical Cannabinoid Receptors
description The endocannabinoid (eCB) system has been found in all visual parts of the central ner-vous system and plays a role in the processing of visual information in many species, including monkeys and humans. Using anatomical methods, cannabinoid receptors are present in the monkey retina, particularly in the vertical glutamatergic pathway, and also in the horizontal GABAergic pathway. Modulating the eCB system regulates normal retinal function as demonstrated by electrophysiological recordings. The characterization of the expression patterns of all types of cannabinoid receptors in the retina is progressing, and further research is needed to elucidate their exact role in processing visual information. Typical cannabinoid receptors include G-protein coupled receptor CB1R and CB2R, and atypical cannabinoid receptors include the G-protein coupled receptor 55 (GPR55) and the ion channel transient receptor potential vanilloid 1 (TRPV1). This review focuses on the expression and localization studies carried out in monkeys, but some data on other animal species and humans will also be reported. Furthermore, the role of the endogenous cannabinoid receptors in retinal function will also be presented using intraocular injections of known modulators (agonists and antagonists) on electroretinographic patterns in monkeys. The effects of the natural bioactive lipid lysophosphatidylglucoside and synthetic FAAH inhibitor URB597 on retinal function, will also be described. Finally, the potential of typical and atypical cannabinoid receptor acti-vity regulation in retinal diseases, such as age-related macular degeneration, diabetic retinopathy, glaucoma, and retinitis pigmentosa will be briefly explored.
format article
author Joseph Bouskila
Maxime Bleau
Catarina Micaelo-Fernandes
Jean-François Bouchard
Maurice Ptito
author_facet Joseph Bouskila
Maxime Bleau
Catarina Micaelo-Fernandes
Jean-François Bouchard
Maurice Ptito
author_sort Joseph Bouskila
title The Vertical and Horizontal Pathways in the Monkey Retina Are Modulated by Typical and Atypical Cannabinoid Receptors
title_short The Vertical and Horizontal Pathways in the Monkey Retina Are Modulated by Typical and Atypical Cannabinoid Receptors
title_full The Vertical and Horizontal Pathways in the Monkey Retina Are Modulated by Typical and Atypical Cannabinoid Receptors
title_fullStr The Vertical and Horizontal Pathways in the Monkey Retina Are Modulated by Typical and Atypical Cannabinoid Receptors
title_full_unstemmed The Vertical and Horizontal Pathways in the Monkey Retina Are Modulated by Typical and Atypical Cannabinoid Receptors
title_sort vertical and horizontal pathways in the monkey retina are modulated by typical and atypical cannabinoid receptors
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/ff36515b206340508c29e5281371c329
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