Results 61 to 70 of about 2,827 (178)

Primary Cilia as a Biomarker in Mesenchymal Stem Cells Senescence: Influencing Osteoblastic Differentiation Potency Associated with Hedgehog Signaling Regulation

Stem Cells International, 2021
Bone tissue engineering-based therapy for bone lesions requires the expansion of seeding cells, such as autologous mesenchymal stem cells (MSCs). A major obstacle to this process is the loss of the phenotype and differentiation capacity of MSCs subjected
Su Fu, Chunlin Zhang, Xu Yan, Dongzhe Li, Yongkui Wang, Chao Dong, Zhengming Cao, Yongming Ning, Chenglong Shao, Tengyue Yang   +9 more
doaj   +1 more source

Unconventional Secretion of Angiogenic Sonic Hedgehog–Containing Extra‐Large Extracellular Vesicles is Driven by PI3K–Rab18‐GDP Signalling

Journal of Extracellular Biology, Volume 5, Issue 2, February 2026.
Human mesenchymal stem cells conditionally secrete sonic hedgehog (SHH)‐containing extra‐large extracellular vesicles (XLEVs) upon PI3K activation, which enriches the GDP‐bound form of Rab18. Rab18‐GDP drives perinuclear maturation and polarized vertical release of SHH‐XLEVs via Hsp90α‐ and nSMase2‐dependent mechanisms.
Shuo Wang, Rio Imai, Yuya Kaneko, Yosuke Tanaka   +3 more
wiley   +1 more source

Developmental expression of the zebrafish Arf-like small GTPase paralogs arl13a and arl13b [PDF]

Gene Expression Patterns, 2018
Members of the Arf-like (Arl) family of small GTP-binding proteins regulate a number of cellular functions and play important roles in cilia structure and signaling. The small GTPase Arl13a is a close paralog to Arl13b, a small GTPase required for normal cilia formation that causes Joubert Syndrome when mutated.
Ping Song, Brian D. Perkins
openaire   +2 more sources

In Vitro Modeling Using Ciliopathy-Patient-Derived Cells Reveals Distinct Cilia Dysfunctions Caused by CEP290 Mutations

Cell Reports, 2017
Mutations in CEP290, a transition zone protein in primary cilia, cause diverse ciliopathies, including Leber congenital amaurosis (LCA) and Joubert-syndrome and related disorders (JSRD).
Hiroko Shimada, Quanlong Lu, Christine Insinna-Kettenhofen, Kunio Nagashima, Milton A. English, Elizabeth M. Semler, Jacklyn Mahgerefteh, Artur V. Cideciyan, Tiansen Li, Brian P. Brooks, Meral Gunay-Aygun, Samuel G. Jacobson, Tiziana Cogliati, Christopher J. Westlake, Anand Swaroop   +14 more
doaj   +1 more source

Missense Variants in the Second Transmembrane Domain of TMEM17 Disrupt Its Stability and Function and Lead to a Wide Phenotypic Spectrum of Ciliopathies

Clinical Genetics, Volume 109, Issue 2, Page 305-315, February 2026.
Missense variants in TMEM17 disrupt its localization and function at the ciliary transition zone, leading to a wide range of ciliopathy phenotypes, from OFD6 and Joubert syndromes to Meckel syndrome. ABSTRACT Ciliopathies are rare genetic disorders characterized by significant genetic and phenotypic variability.
Lucile Boutaud, Chunmei Li, Candice Moncler, Laure Verlin, Meriem Garfa‐Traoré, Nicolas Bourgon, Dhruvin Akbari, Jeanne Porée, Valentina Serpieri, Marine Panza, Lynda Haddad, Patrick Nitschké, Jacqueline Aziza, Cristina Matt, Enza Maria Valente, Patricia Gargallo, Charlotte Dubucs, Tania Attié‐Bitach, Michel R. Leroux, Sophie Thomas   +19 more
wiley   +1 more source

TTBK2‐Driven Ciliogenesis Is Required for Intrinsic Neuronal Regeneration After Spinal Cord Injury

CNS Neuroscience &Therapeutics, Volume 32, Issue 1, January 2026.
TTBK2‐dependent ciliogenesis is required for intrinsic neuronal regeneration after spinal cord injury. Loss of TTBK2 disrupts primary cilium integrity, attenuates SHH signaling, and impairs axonal regrowth. Restoring SHH activity partially rescues neuronal structural deficits, highlighting the TTBK2/cilium–SHH as a therapeutic target.
Renfeng Zhang, Su Pan, Zhenwei Tian, Haorui Du, Jintao Wang, Xiaoyu Yang, Zhiping Qi   +6 more
wiley   +1 more source

Cell surface detection of vimentin, ACE2 and SARS-CoV-2 Spike proteins reveals selective colocalization at primary cilia

Scientific Reports, 2022
The SARS-CoV-2 Spike protein mediates docking of the virus onto cells prior to viral invasion. Several cellular receptors facilitate SARS-CoV-2 Spike docking at the cell surface, of which ACE2 plays a key role in many cell types.
Vasiliki Lalioti, Silvia González-Sanz, Irene Lois-Bermejo, Patricia González-Jiménez, Álvaro Viedma-Poyatos, Andrea Merino, María A. Pajares, Dolores Pérez-Sala   +7 more
doaj   +1 more source

PIK3C2A‐Related Clinical Phenotype and Cellular Charaterization Linked to Functional SHH Primary Cilia Defect

Clinical Genetics, Volume 108, Issue 6, Page 696-707, December 2025.
Trio exome sequencing allowed the identification of two novel compound heterozygous variants in PIK3C2A, defining the fifth family presenting a PIK3C2A‐related syndrome characterized by pulverulent cataracts and deafness. Functional testing revealed impaired PI metabolism and primary dysfunction phenotype.
Adella Karam, Clarisse Delvallée, Bénédicte Gérard, Elodie Javey, Pascal Kessler, Valérie Pelletier, Jean‐Baptiste Lamouche, Nicolas Le May, Jean Muller, Hélène Dollfus   +9 more
wiley   +1 more source

Alteration of primary cilia and intraflagellar transport 20 (IFT20) expression in oral squamous cell carcinoma (OSCC) cell lines [PDF]

PeerJ
Background Aberrations in primary cilia expression and intraflagellar transport (IFT) protein function have been implicated in tumourigenesis.
Gulam Sakinah-Syed, Jia Shi Liew, Nazia Abdul Majid, Siti Amalina Inche Zainal Abidin   +3 more
doaj   +2 more sources

Taking Down the Primary Cilium: Pathways for Disassembly in Differentiating Cells

BioEssays, Volume 47, Issue 11, November 2025.
Primary cilia are developmentally essential subcellular signaling compartments. However, many differentiated cells lack primary cilia, and cilia disassembly in these tissue contexts has been largely overlooked. We highlight several pathways for primary cilia loss and examine how changes in ciliation states could contribute to diverse pathologies ...
Carolyn M. Ott, Saikat Mukhopadhyay
wiley   +1 more source