Primary Cilia Dysfunction in Neurodevelopmental Disorders beyond Ciliopathies

Primary cilia are specialized, microtubule-based structures projecting from the surface of most mammalian cells. These organelles are thought to primarily act as signaling hubs and sensors, receiving and integrating extracellular cues. Several important signaling pathways are regulated through the p...

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Main Authors: Vasiliki Karalis, Kathleen E. Donovan, Mustafa Sahin
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Journal of Developmental Biology
Subjects:
Online Access:https://www.mdpi.com/2221-3759/10/4/54
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author Vasiliki Karalis
Kathleen E. Donovan
Mustafa Sahin
author_facet Vasiliki Karalis
Kathleen E. Donovan
Mustafa Sahin
author_sort Vasiliki Karalis
collection DOAJ
description Primary cilia are specialized, microtubule-based structures projecting from the surface of most mammalian cells. These organelles are thought to primarily act as signaling hubs and sensors, receiving and integrating extracellular cues. Several important signaling pathways are regulated through the primary cilium including Sonic Hedgehog (Shh) and Wnt signaling. Therefore, it is no surprise that mutated genes encoding defective proteins that affect primary cilia function or structure are responsible for a group of disorders collectively termed ciliopathies. The severe neurologic abnormalities observed in several ciliopathies have prompted examination of primary cilia structure and function in other brain disorders. Recently, neuronal primary cilia defects were observed in monogenic neurodevelopmental disorders that were not traditionally considered ciliopathies. The molecular mechanisms of how these genetic mutations cause primary cilia defects and how these defects contribute to the neurologic manifestations of these disorders remain poorly understood. In this review we will discuss monogenic neurodevelopmental disorders that exhibit cilia deficits and summarize findings from studies exploring the role of primary cilia in the brain to shed light into how these deficits could contribute to neurologic abnormalities.
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spelling doaj.art-c5d9279807464a9b8de927f88d1a4e942023-11-24T15:48:36ZengMDPI AGJournal of Developmental Biology2221-37592022-12-011045410.3390/jdb10040054Primary Cilia Dysfunction in Neurodevelopmental Disorders beyond CiliopathiesVasiliki Karalis0Kathleen E. Donovan1Mustafa Sahin2The Rosamund Stone Zander Translational Neuroscience Center, Department of Neurology Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USAThe Rosamund Stone Zander Translational Neuroscience Center, Department of Neurology Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USAThe Rosamund Stone Zander Translational Neuroscience Center, Department of Neurology Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USAPrimary cilia are specialized, microtubule-based structures projecting from the surface of most mammalian cells. These organelles are thought to primarily act as signaling hubs and sensors, receiving and integrating extracellular cues. Several important signaling pathways are regulated through the primary cilium including Sonic Hedgehog (Shh) and Wnt signaling. Therefore, it is no surprise that mutated genes encoding defective proteins that affect primary cilia function or structure are responsible for a group of disorders collectively termed ciliopathies. The severe neurologic abnormalities observed in several ciliopathies have prompted examination of primary cilia structure and function in other brain disorders. Recently, neuronal primary cilia defects were observed in monogenic neurodevelopmental disorders that were not traditionally considered ciliopathies. The molecular mechanisms of how these genetic mutations cause primary cilia defects and how these defects contribute to the neurologic manifestations of these disorders remain poorly understood. In this review we will discuss monogenic neurodevelopmental disorders that exhibit cilia deficits and summarize findings from studies exploring the role of primary cilia in the brain to shed light into how these deficits could contribute to neurologic abnormalities.https://www.mdpi.com/2221-3759/10/4/54primary ciliaciliopathiesneurodevelopmental disorderssignaling
spellingShingle Vasiliki Karalis
Kathleen E. Donovan
Mustafa Sahin
Primary Cilia Dysfunction in Neurodevelopmental Disorders beyond Ciliopathies
Journal of Developmental Biology
primary cilia
ciliopathies
neurodevelopmental disorders
signaling
title Primary Cilia Dysfunction in Neurodevelopmental Disorders beyond Ciliopathies
title_full Primary Cilia Dysfunction in Neurodevelopmental Disorders beyond Ciliopathies
title_fullStr Primary Cilia Dysfunction in Neurodevelopmental Disorders beyond Ciliopathies
title_full_unstemmed Primary Cilia Dysfunction in Neurodevelopmental Disorders beyond Ciliopathies
title_short Primary Cilia Dysfunction in Neurodevelopmental Disorders beyond Ciliopathies
title_sort primary cilia dysfunction in neurodevelopmental disorders beyond ciliopathies
topic primary cilia
ciliopathies
neurodevelopmental disorders
signaling
url https://www.mdpi.com/2221-3759/10/4/54
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AT kathleenedonovan primaryciliadysfunctioninneurodevelopmentaldisordersbeyondciliopathies
AT mustafasahin primaryciliadysfunctioninneurodevelopmentaldisordersbeyondciliopathies