Primary Cilia in Health and Diseases

A special issue of Cells (ISSN 2073-4409). This special issue belongs to the section "Cell Motility and Adhesion".

Deadline for manuscript submissions: 1 August 2024 | Viewed by 4695

Special Issue Editor


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Guest Editor
School of Life Sciences, Graduate School, Kyungpook National University, Daegu 41566, Korea
Interests: autophagy; peroxisome; lysosome; primary cilia; cell death
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Through the cilium, cells and tissues adapt to changes in the extracellular environment by regulating cell cycle, cellular function, cell shape, and movement. For the cilium to work as an antenna, a variety of receptors, transporter proteins, ion channels, and effector molecules are localized to the cilium. Moreover, signaling pathways orchestrated by primary cilia play important roles in development, proliferation, differentiation and cell survival. Therefore, loss of primary ciliogenesis is highly linked with genetic diseases, known as ciliopathies, which show a large spectrum of anomalies in multiple organ systems. In addition, recent evidence suggests that dysregulation of primary cilia is also associated with various human diseases, including cancer, metabolic diseases, and neurodegenerative diseases.

This Special Issue will discuss the role of primary cilia in development, survival, death, and pathophysiological conditions. We encourage you to contribute to this Special Issue of Cells and submit a research article, a review article, or a perspective and opinion article that is dedicated to primary cilia.

Prof. Dr. Dong-Hyung Cho
Guest Editor

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Keywords

  • primary cilia
  • ciliogenesis
  • ciliopathy
  • development
  • signaling
  • sensory system
  • disease
  • screening

Published Papers (2 papers)

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Research

24 pages, 5658 KiB  
Article
Primary Cilium Identifies a Quiescent Cell Population in the Human Intestinal Crypt
by Blanche Sénicourt, Gabriel Cloutier, Nuria Basora, Sepideh Fallah, Andréanne Laniel, Christine Lavoie and Jean-François Beaulieu
Cells 2023, 12(7), 1059; https://doi.org/10.3390/cells12071059 - 31 Mar 2023
Viewed by 1656
Abstract
Primary cilia are sensory antennae located at the cell surface which mediate a variety of extracellular signals involved in development, tissue homeostasis, stem cells and cancer. Primary cilia are found in an extensive array of vertebrae cells but can only be generated when [...] Read more.
Primary cilia are sensory antennae located at the cell surface which mediate a variety of extracellular signals involved in development, tissue homeostasis, stem cells and cancer. Primary cilia are found in an extensive array of vertebrae cells but can only be generated when cells become quiescent. The small intestinal epithelium is a rapidly self-renewing tissue organized into a functional unit called the crypt–villus axis, containing progenitor and differentiated cells, respectively. Terminally differentiated villus cells are notoriously devoid of primary cilia. We sought to determine if intestinal crypts contain a quiescent cell population that could be identified by the presence of primary cilia. Here we show that primary cilia are detected in a subset of cells located deep in the crypts slightly above a Paneth cell population. Using a normal epithelial proliferative crypt cell model, we show that primary cilia assembly and activity correlate with a quiescent state. These results provide further evidence for the existence of a quiescent cell population in the human small intestine and suggest the potential for new modes of regulation in stem cell dynamics. Full article
(This article belongs to the Special Issue Primary Cilia in Health and Diseases)
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10 pages, 1663 KiB  
Article
Carnitine Protects against MPP+-Induced Neurotoxicity and Inflammation by Promoting Primary Ciliogenesis in SH-SY5Y Cells
by Ji-Eun Bae, Joon Bum Kim, Doo Sin Jo, Na Yeon Park, Yong Hwan Kim, Ha Jung Lee, Seong Hyun Kim, So Hyun Kim, Mikyung Son, Pansoo Kim, Hong-Yeoul Ryu, Won Ha Lee, Zae Young Ryoo, Hyun-Shik Lee, Yong-Keun Jung and Dong-Hyung Cho
Cells 2022, 11(17), 2722; https://doi.org/10.3390/cells11172722 - 01 Sep 2022
Cited by 4 | Viewed by 2195
Abstract
Primary cilia help to maintain cellular homeostasis by sensing conditions in the extracellular environment, including growth factors, nutrients, and hormones that are involved in various signaling pathways. Recently, we have shown that enhanced primary ciliogenesis in dopamine neurons promotes neuronal survival in a [...] Read more.
Primary cilia help to maintain cellular homeostasis by sensing conditions in the extracellular environment, including growth factors, nutrients, and hormones that are involved in various signaling pathways. Recently, we have shown that enhanced primary ciliogenesis in dopamine neurons promotes neuronal survival in a Parkinson’s disease model. Moreover, we performed fecal metabolite screening in order to identify several candidates for improving primary ciliogenesis, including L-carnitine and acetyl-L-carnitine. However, the role of carnitine in primary ciliogenesis has remained unclear. In addition, the relationship between primary cilia and neurodegenerative diseases has remained unclear. In this study, we have evaluated the effects of carnitine on primary ciliogenesis in 1-methyl-4-phenylpyridinium ion (MPP+)-treated cells. We found that both L-carnitine and acetyl-L-carnitine promoted primary ciliogenesis in SH-SY5Y cells. In addition, the enhancement of ciliogenesis by carnitine suppressed MPP+-induced mitochondrial reactive oxygen species overproduction and mitochondrial fragmentation in SH-SY5Y cells. Moreover, carnitine inhibited the production of pro-inflammatory cytokines in MPP+-treated SH-SY5Y cells. Taken together, our findings suggest that enhanced ciliogenesis regulates MPP+-induced neurotoxicity and inflammation. Full article
(This article belongs to the Special Issue Primary Cilia in Health and Diseases)
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