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Xiao Y, Wang G, He G, Qin W, Shi Y. Rab8a/SNARE complex activation promotes vesicle anchoring and transport in spinal astrocytes to drive neuropathic pain. BIOMOLECULES & BIOMEDICINE 2024; 24:1290-1300. [PMID: 38691557 PMCID: PMC11379012 DOI: 10.17305/bb.2024.10441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/23/2024] [Accepted: 04/23/2024] [Indexed: 05/03/2024]
Abstract
Neuropathic pain (NPP) remains a clinically challenging condition, driven by the activation of spinal astrocytes and the complex release of inflammatory mediators. This study aimed to examine the roles of Rab8a and SNARE complex proteins in activated astrocytes to uncover the underlying mechanisms of NPP. The research was conducted using a rat model with chronic constriction injury (CCI) of the sciatic nerve and primary astrocytes treated with lipopolysaccharide. Enhanced expression of Rab8a was noted specifically in spinal dorsal horn astrocytes through immunofluorescence. Electron microscopy observations showed increased vesicular transport and exocytic activity in activated astrocytes, which was corroborated by elevated levels of inflammatory cytokines such as interleukin (IL)-1β and tumor necrosis factor (TNF)-α detected through quantitative PCR. Western blot analyses confirmed significant upregulation of Rab8a, VAMP2, and Syntaxin16 in these cells. Furthermore, the application of botulinum neurotoxin type A (BONT/A) reduced the levels of vesicle transport-associated proteins, inhibiting vesicular transport in activated astrocytes. These findings suggest that the Rab8a/SNARE pathway in astrocytes enhances vesicle transport and anchoring, increasing the secretion of bioactive molecules that may play a crucial role in the pathophysiology of NPP. Inhibiting this pathway with BONT/A offers a novel therapeutic target for managing NPP, highlighting its potential utility in clinical interventions.
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Affiliation(s)
- Yunqiao Xiao
- University-Town Hospital of Chongqing Medical University, Chongqing, China
- Institute of Neuroscience, Chongqing Medical University, Chongqing, China
| | - Gengyi Wang
- Institute of Neuroscience, Chongqing Medical University, Chongqing, China
| | - Guiqiong He
- Institute of Neuroscience, Chongqing Medical University, Chongqing, China
| | - Wanxiang Qin
- Department of Pain Care, Southwest Hospital, Army Medical University, Chongqing, China
| | - Ying Shi
- Department of Pain Care, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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2
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Sneddon TP, Gilmore KL, Xiong M, Weck KE, Powell BC, Vora NL. WDR44 Loss-of-Function Promoter Deletion in a Male Newborn With a Ciliopathy Phenotype. Am J Med Genet A 2024:e63861. [PMID: 39235309 DOI: 10.1002/ajmg.a.63861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 06/13/2024] [Accepted: 08/18/2024] [Indexed: 09/06/2024]
Abstract
Gain-of-function variants in the WDR44 gene have recently been associated with an X-linked ciliopathy-related neurodevelopmental phenotype. Here, we report on a WDR44 loss-of-function (LOF) variant identified in the genome sequence from a male fetus enrolled in the Prenatal Genetic Diagnosis by Genomic Sequencing (PrenatalSEQ) multicenter study. The phenotype is consistent with the described X-linked ciliopathy that includes developmental delay, microcephaly, congenital heart defects, kidney abnormalities, cryptorchidism, musculoskeletal abnormalities, craniofacial dysmorphism, and effusions. This is the first report of a WDR44 LOF variant in an affected individual with a prenatal presentation and supports LOF as a mechanism for the X-linked WDR44 ciliopathy-related phenotype.
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Affiliation(s)
- Tam P Sneddon
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina, USA
- Department of Genetics, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Kelly L Gilmore
- Department of Obstetrics and Gynecology, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Mai Xiong
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Karen E Weck
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina, USA
- Department of Genetics, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Bradford C Powell
- Department of Genetics, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Neeta L Vora
- Department of Obstetrics and Gynecology, University of North Carolina, Chapel Hill, North Carolina, USA
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3
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Chinbold B, Kwon HM, Park R. TonEBP inhibits ciliogenesis by controlling aurora kinase A and regulating centriolar satellite integrity. Cell Commun Signal 2024; 22:348. [PMID: 38961488 PMCID: PMC11221002 DOI: 10.1186/s12964-024-01721-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 06/20/2024] [Indexed: 07/05/2024] Open
Abstract
BACKGROUND Primary cilia on the surface of eukaryotic cells serve as sensory antennas for the reception and transmission in various cell signaling pathways. They are dynamic organelles that rapidly form during differentiation and cell cycle exit. Defects in these organelles cause a group of wide-ranging disorders called ciliopathies. Tonicity-responsive enhancer-binding protein (TonEBP) is a pleiotropic stress protein that mediates various physiological and pathological cellular responses. TonEBP is well-known for its role in adaptation to a hypertonic environment, to which primary cilia have been reported to contribute. Furthermore, TonEBP is involved in a wide variety of other signaling pathways, such as Sonic Hedgehog and WNT signaling, that promote primary ciliogenesis, suggesting a possible regulatory role. However, the functional relationship between TonEBP and primary ciliary formation remains unclear. METHODS TonEBP siRNAs and TonEBP-mCherry plasmids were used to examine their effects on cell ciliation rates, assembly and disassembly processes, and regulators. Serum starvation was used as a condition to induce ciliogenesis. RESULTS We identified a novel pericentriolar localization for TonEBP. The results showed that TonEBP depletion facilitates the formation of primary cilia, whereas its overexpression results in fewer ciliated cells. Moreover, TonEBP controlled the expression and activity of aurora kinase A, a major negative regulator of ciliogenesis. Additionally, TonEBP overexpression inhibited the loss of CP110 from the mother centrioles during the early stages of primary cilia assembly. Finally, TonEBP regulated the localization of PCM1 and AZI1, which are necessary for primary cilia formation. CONCLUSIONS This study proposes a novel role for TonEBP as a pericentriolar protein that regulates the integrity of centriolar satellite components. This regulation has shown to have a negative effect on ciliogenesis. Investigations into cilium assembly and disassembly processes suggest that TonEBP acts upstream of the aurora kinase A - histone deacetylase 6 signaling pathway and affects basal body formation to control ciliogenesis. Taken together, our data proposes previously uncharacterized regulation of primary cilia assembly by TonEBP.
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Affiliation(s)
- Batchingis Chinbold
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Hyug Moo Kwon
- School of Life Sciences, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
| | - Raekil Park
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea.
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4
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Van Es LJC, Possee RD, King LA. Characterisation of extracellular vesicles in baculovirus infection of Spodoptera frugiperda cells. JOURNAL OF EXTRACELLULAR BIOLOGY 2024; 3:e163. [PMID: 38947876 PMCID: PMC11212295 DOI: 10.1002/jex2.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 05/24/2024] [Accepted: 06/05/2024] [Indexed: 07/02/2024]
Abstract
Autographa californica multiple nucleopolyhedrovirus (AcMNPV) is an enveloped DNA virus of the Baculoviridae family. This baculovirus is widely exploited for the biological control of insect pest species and as an expression platform to produce recombinant proteins in insect cells. Extracellular vesicles (EVs) are secreted by all cells and are involved in key roles in many biological processes through their cargo consisting of proteins, RNA or DNA. In viral infections, EVs have been found to transfer both viral and cellular cargo that can elicit either a pro- or antiviral response in recipient cells. Here, small EVs (sEVs) released by Spodoptera frugiperda (Sf) insect cells were characterised for the first time. Using S. frugiperda (SfC1B5) cells stably expressing the baculovirus gp64, the viral envelope protein GP64 was shown to be incorporated into sEVs. Sf9 cells were also transfected with a bacmid AcMNPV genome lacking p6.9 (AcΔP6.9) to prevent budded virus production. The protein content of sEVs from both mock- and AcΔP6.9-transfected cells were analysed by mass spectrometry. In addition to GP64, viral proteins Ac-F, ME-53 and viral ubiquitin were identified, as well as many host proteins including TSG101-which may be useful as a protein marker for sEVs.
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Affiliation(s)
- Lex J. C. Van Es
- Department of Biological and Medical SciencesOxford Brookes UniversityOxfordUK
- Oxford Expression Technologies LtdOxfordUK
| | | | - Linda A. King
- Department of Biological and Medical SciencesOxford Brookes UniversityOxfordUK
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5
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Ma R, Chen L, Hu N, Caplan S, Hu G. Cilia and Extracellular Vesicles in Brain Development and Disease. Biol Psychiatry 2024; 95:1020-1029. [PMID: 37956781 PMCID: PMC11087377 DOI: 10.1016/j.biopsych.2023.11.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/21/2023] [Accepted: 11/05/2023] [Indexed: 11/15/2023]
Abstract
Primary and motile cilia are thin, hair-like cellular projections from the cell surface involved in movement, sensing, and communication between cells. Extracellular vesicles (EVs) are small membrane-bound vesicles secreted by cells and contain various proteins, lipids, and nucleic acids that are delivered to and influence the behavior of other cells. Both cilia and EVs are essential for the normal functioning of brain cells, and their malfunction can lead to several neurological diseases. Cilia and EVs can interact with each other in several ways, and this interplay plays a crucial role in facilitating various biological processes, including cell-to-cell communication, tissue homeostasis, and pathogen defense. Cilia and EV crosstalk in the brain is an emerging area of research. Herein, we summarize the detailed molecular mechanisms of cilia and EV interplay and address the ciliary molecules that are involved in signaling and cellular dysfunction in brain development and diseases. Finally, we discuss the potential clinical use of cilia and EVs in brain diseases.
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Affiliation(s)
- Rong Ma
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska; Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Liang Chen
- Department of Computer Science, College of Engineering, Shantou University, Shantou, Guangdong, China
| | - Ningyun Hu
- Millard West High School, Omaha, Nebraska
| | - Steve Caplan
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska.
| | - Guoku Hu
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska.
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6
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Karpagavalli M, Sivagurunathan S, Panda TS, Srikakulam N, Arora R, Dohadwala L, Tiwary BK, Sadras SR, Arunachalam JP, Pandi G, Chidambaram S. piRNAs in the human retina and retinal pigment epithelium reveal a potential role in intracellular trafficking and oxidative stress. Mol Omics 2024; 20:248-264. [PMID: 38314503 DOI: 10.1039/d3mo00122a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
Long considered active only in the germline, the PIWI/piRNA pathway is now known to play a significant role in somatic cells, especially neurons. In this study, piRNAs were profiled in the human retina and retinal pigment epithelium (RPE). Furthermore, RNA immunoprecipitation with HIWI2 (PIWIL4) in ARPE19 cells yielded 261 piRNAs, and the expression of selective piRNAs in donor eyes was assessed by qRT-PCR. Intriguingly, computational analysis revealed complete and partial seed sequence similarity between piR-hsa-26131 and the sensory organ specific miR-183/96/182 cluster. Furthermore, the expression of retina-enriched piR-hsa-26131 was positively correlated with miR-182 in HIWI2-silenced Y79 cells. In addition, the lnc-ZNF169 sequence matched with two miRNAs of the let-7 family, and piRNAs, piR-hsa-11361 and piR-hsa-11360, which could modulate the regulatory network of retinal differentiation. Interestingly, we annotated four enriched motifs among the piRNAs and found that the piRNAs containing CACAATG and CTCATCAKYG motifs were snoRNA-derived piRNAs, which are significantly associated with developmental functions. However, piRNAs consisting of ACCACTANACCAC and AKCACGYTCSC motifs were mainly tRNA-derived fragments linked to stress response and sensory perception. Additionally, co-expression network analysis revealed cell cycle control, intracellular transport and stress response as the important biological functions regulated by piRNAs in the retina. Moreover, loss of piRNAs in HIWI2 knockdown ARPE19 confirmed altered expression of targets implicated in intracellular transport, circadian clock, and retinal degeneration. Moreover, piRNAs were dysregulated under oxidative stress conditions, indicating their potential role in retinal pathology. Therefore, we postulate that piRNAs, miRNAs, and lncRNAs might have a functional interplay during retinal development and functions to regulate retinal homeostasis.
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Affiliation(s)
| | - Suganya Sivagurunathan
- RS Mehta Jain Department of Biochemistry and Cell Biology, Vision Research Foundation, Chennai, India
| | - T Sayamsmruti Panda
- Department of Bioinformatics, Pondicherry University, Puducherry-605014, India
| | - Nagesh Srikakulam
- Laboratory of RNA Biology and Epigenomics, Department of Plant Biotechnology, School of Biotechnology, Madurai Kamaraj University, Madurai, India
| | - Reety Arora
- National Centre for Biological Sciences, TIFR, Bangalore, India
| | | | - Basant K Tiwary
- Department of Bioinformatics, Pondicherry University, Puducherry-605014, India
| | - Sudha Rani Sadras
- Department of Biochemistry and Molecular Biology, Pondicherry University, Puducherry-605014, India.
| | - Jayamuruga Pandian Arunachalam
- Central Inter-Disciplinary Research Facility, Sri Balaji Vidyapeeth (Deemed to be University), Pondicherry-607402, India
| | - Gopal Pandi
- Laboratory of RNA Biology and Epigenomics, Department of Plant Biotechnology, School of Biotechnology, Madurai Kamaraj University, Madurai, India
| | - Subbulakshmi Chidambaram
- Department of Biochemistry and Molecular Biology, Pondicherry University, Puducherry-605014, India.
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7
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Parolek J, Burd CG. Bridge-like lipid transfer protein family member 2 suppresses ciliogenesis. Mol Biol Cell 2024; 35:br11. [PMID: 38536441 PMCID: PMC11151097 DOI: 10.1091/mbc.e24-02-0065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/12/2024] [Accepted: 03/22/2024] [Indexed: 04/12/2024] Open
Abstract
Bridge-like lipid transfer protein family member 2 (BLTP2) is an evolutionary conserved protein with unknown function(s). The absence of BLTP2 in Drosophila melanogaster results in impaired cellular secretion and larval death, while in mice (Mus musculus), it causes preweaning lethality. Structural predictions propose that BLTP2 belongs to the repeating β-groove domain-containing (also called the VPS13) protein family, forming a long tube with a hydrophobic core, suggesting that it operates as a lipid transfer protein (LTP). We establish BLTP2 as a negative regulator of ciliogenesis in RPE-1 cells based on a strong genetic interaction with WDR44, a gene that also suppresses ciliogenesis. Like WDR44, BLTP2 localizes to membrane contact sites involving the endoplasmic reticulum and the tubular endosome network in HeLa cells and that BLTP2 depletion enhanced ciliogenesis in RPE-1 cells grown in serum-containing medium, a condition where ciliogenesis is normally suppressed. This study establishes human BLTP2 as a putative LTP acting between tubular endosomes and ER that regulates primary cilium biogenesis.
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Affiliation(s)
- Jan Parolek
- Department of Cell Biology, Yale School of Medicine, New Haven, CT 06520
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8
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Zhang X, Yao S, Zhang L, Yang L, Yang M, Guo Q, Li Y, Wang Z, Lei B, Jin X. Mechanisms underlying morphological and functional changes of cilia in fibroblasts derived from patients bearing ARL3 T31A and ARL3 T31A/C118F mutations. FASEB J 2024; 38:e23519. [PMID: 38457249 DOI: 10.1096/fj.202301906r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 01/31/2024] [Accepted: 02/15/2024] [Indexed: 03/10/2024]
Abstract
ARL3 is essential for cilia development, and mutations in ARL3 are closely associated with ciliopathies. In a previous study, we observed distinct phenotypes of retinal dystrophy in patients with heterozygous ARL3T31A and compound heterozygous ARL3T31A/C118F mutations, indicating that different mutation types may exert diverse effects on their functions. Here, we generated transformed immortal fibroblast cells from patients carrying heterozygous ARL3T31A and compound heterozygous ARL3T31A/C118F mutations, and systematically evaluated their cilia morphology and function, which were further validated in ARPE-19 cells. Results showed that both ARL3T31A and ARL3T31A/C118F mutations led to a decrease in cilium formation. The ARL3T31A/C118F mutations caused significantly elongated cilia and impaired retrograde transport, whereas the ARL3T31A mutation did not induce significant changes in fibroblasts. RNA-sequencing results indicated that compared to ARL3T31A , ARL3T31A/C118F fibroblasts exhibited a higher enrichment of biological processes related to neuron projection development, tissue morphogenesis, and extracellular matrix (ECM) organization, with noticeable alterations in pathways such as ECM-receptor interaction, focal adhesion, and TGF-β signaling. Similar changes were observed in the proteomic results in ARPE-19 cells. Core regulated genes including IQUB, UNC13D, RAB3IP, and GRIP1 were specifically downregulated in the ARL3T31A/C118F group, and expressions of IQUB, NPM2, and SLC38A4 were further validated. Additionally, IQUB showed a rescuing effect on the overlong cilia observed in ARL3T31A/C118F fibroblasts. Our results not only enhance our understanding of ARL3-related diseases but also provide new insights into the analysis of heterozygous and compound heterozygous mutations in genetics.
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Affiliation(s)
- Xiaoli Zhang
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Institute of Neuroscience and The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Eye Institute, Henan Academy of Innovations in Medical Science, Zhengzhou, Henan, China
| | - Shun Yao
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Lujia Zhang
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Institute of Neuroscience and The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Lin Yang
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Mingzhu Yang
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Qingge Guo
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Yan Li
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Zhongfeng Wang
- Institute of Neuroscience and The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Bo Lei
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Eye Institute, Henan Academy of Innovations in Medical Science, Zhengzhou, Henan, China
| | - Xiuxiu Jin
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Eye Institute, Henan Academy of Innovations in Medical Science, Zhengzhou, Henan, China
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9
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Wu Z, Chen H, Zhang Y, Wang Y, Wang Q, Augière C, Hou Y, Fu Y, Peng Y, Durand B, Wei Q. Cep131-Cep162 and Cby-Fam92 complexes cooperatively maintain Cep290 at the basal body and contribute to ciliogenesis initiation. PLoS Biol 2024; 22:e3002330. [PMID: 38442096 PMCID: PMC10914257 DOI: 10.1371/journal.pbio.3002330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 01/31/2024] [Indexed: 03/07/2024] Open
Abstract
Cilia play critical roles in cell signal transduction and organ development. Defects in cilia function result in a variety of genetic disorders. Cep290 is an evolutionarily conserved ciliopathy protein that bridges the ciliary membrane and axoneme at the basal body (BB) and plays critical roles in the initiation of ciliogenesis and TZ assembly. How Cep290 is maintained at BB and whether axonemal and ciliary membrane localized cues converge to determine the localization of Cep290 remain unknown. Here, we report that the Cep131-Cep162 module near the axoneme and the Cby-Fam92 module close to the membrane synergistically control the BB localization of Cep290 and the subsequent initiation of ciliogenesis in Drosophila. Concurrent deletion of any protein of the Cep131-Cep162 module and of the Cby-Fam92 module leads to a complete loss of Cep290 from BB and blocks ciliogenesis at its initiation stage. Our results reveal that the first step of ciliogenesis strictly depends on cooperative and retroactive interactions between Cep131-Cep162, Cby-Fam92 and Cep290, which may contribute to the complex pathogenesis of Cep290-related ciliopathies.
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Affiliation(s)
- Zhimao Wu
- Center for Energy Metabolism and Reproduction, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen, China
| | - Huicheng Chen
- Center for Energy Metabolism and Reproduction, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen, China
| | - Yingying Zhang
- Center for Energy Metabolism and Reproduction, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen, China
| | - Yaru Wang
- Center for Energy Metabolism and Reproduction, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen, China
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan, China
| | - Qiaoling Wang
- Institute of Medicine and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Céline Augière
- University Claude Bernard Lyon 1, MeLiS—UCBL—CNRS UMR 5284—INSERM U1314, Lyon, France
| | - Yanan Hou
- Center for Energy Metabolism and Reproduction, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen, China
| | - Yuejun Fu
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan, China
| | - Ying Peng
- Institute of Medicine and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Bénédicte Durand
- University Claude Bernard Lyon 1, MeLiS—UCBL—CNRS UMR 5284—INSERM U1314, Lyon, France
| | - Qing Wei
- Center for Energy Metabolism and Reproduction, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen, China
- Shenzhen Key Laboratory of Metabolic Health, Shenzhen, China
- School of Synthetic Biology, Shanxi Key Laboratory of Nucleic Acid Biopesticides, Shanxi University, Taiyuan, China
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10
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Burcklé C, Raitière J, Michaux G, Kodjabachian L, Le Bivic A. Crb3 is required to organize the apical domain of multiciliated cells. J Cell Sci 2024; 137:jcs261046. [PMID: 37840525 DOI: 10.1242/jcs.261046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 10/10/2023] [Indexed: 10/17/2023] Open
Abstract
Cell shape changes mainly rely on the remodeling of the actin cytoskeleton. Multiciliated cells (MCCs) of the mucociliary epidermis of Xenopus laevis embryos, as they mature, dramatically reshape their apical domain to grow cilia, in coordination with the underlying actin cytoskeleton. Crumbs (Crb) proteins are multifaceted transmembrane apical polarity proteins known to recruit actin linkers and promote apical membrane growth. Here, we identify the homeolog Crb3.L as an important player for the migration of centrioles or basal bodies (collectively centrioles/BBs) and apical domain morphogenesis in MCCs. Crb3.L is present in cytoplasmic vesicles close to the ascending centrioles/BBs, where it partially colocalizes with Rab11a. Crb3.L morpholino-mediated depletion in MCCs caused abnormal migration of centrioles/BBs, a reduction of their apical surface, disorganization of their apical actin meshwork and defective ciliogenesis. Rab11a morpholino-mediated depletion phenocopied Crb3.L loss-of-function in MCCs. Thus, the control of centrioles/BBs migration by Crb3.L might be mediated by Rab11a-dependent apical trafficking. Furthermore, we show that both phospho-activated ERM (pERM; Ezrin-Radixin-Moesin) and Crb3.L are recruited to the growing apical domain of MCCs, where Crb3.L likely anchors pERM, allowing actin-dependent expansion of the apical membrane.
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Affiliation(s)
- Céline Burcklé
- Aix-Marseille University, CNRS, UMR 7288, Developmental Biology Institute of Marseille (IBDM), Marseille, F-13288 France
| | - Juliette Raitière
- Aix-Marseille University, CNRS, UMR 7288, Developmental Biology Institute of Marseille (IBDM), Marseille, F-13288 France
| | - Grégoire Michaux
- Univ Rennes, CNRS, IGDR (Institut de Génétique et Développement de Rennes), UMR 6290, F-35000 Rennes, France
| | - Laurent Kodjabachian
- Aix Marseille University, CNRS, UMR 7288, Developmental Biology Institute of Marseille (IBDM), Turing Centre for Living Systems, Marseille, F-13288 France
| | - André Le Bivic
- Aix-Marseille University, CNRS, UMR 7288, Developmental Biology Institute of Marseille (IBDM), Marseille, F-13288 France
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11
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Dennis C, Pouchin P, Richard G, Mirouse V. Basement membrane diversification relies on two competitive secretory routes defined by Rab10 and Rab8 and modulated by dystrophin and the exocyst complex. PLoS Genet 2024; 20:e1011169. [PMID: 38437244 PMCID: PMC10939200 DOI: 10.1371/journal.pgen.1011169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/14/2024] [Accepted: 02/05/2024] [Indexed: 03/06/2024] Open
Abstract
The basement membrane (BM) is an essential structural element of tissues, and its diversification participates in organ morphogenesis. However, the traffic routes associated with BM formation and the mechanistic modulations explaining its diversification are still poorly understood. Drosophila melanogaster follicular epithelium relies on a BM composed of oriented BM fibrils and a more homogenous matrix. Here, we determined the specific molecular identity and cell exit sites of BM protein secretory routes. First, we found that Rab10 and Rab8 define two parallel routes for BM protein secretion. When both routes were abolished, BM production was fully blocked; however, genetic interactions revealed that these two routes competed. Rab10 promoted lateral and planar-polarized secretion, whereas Rab8 promoted basal secretion, leading to the formation of BM fibrils and homogenous BM, respectively. We also found that the dystrophin-associated protein complex (DAPC) and Rab10 were both present in a planar-polarized tubular compartment containing BM proteins. DAPC was essential for fibril formation and sufficient to reorient secretion towards the Rab10 route. Moreover, we identified a dual function for the exocyst complex in this context. First, the Exo70 subunit directly interacted with dystrophin to limit its planar polarization. Second, the exocyst complex was also required for the Rab8 route. Altogether, these results highlight important mechanistic aspects of BM protein secretion and illustrate how BM diversity can emerge from the spatial control of distinct traffic routes.
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Affiliation(s)
- Cynthia Dennis
- Université Clermont Auvergne, Institute of Genetics, Reproduction and Development (iGReD), UMR CNRS 6293-INSERM U1103, Faculté de Médecine, Clermont-Ferrand, France
| | - Pierre Pouchin
- Université Clermont Auvergne, Institute of Genetics, Reproduction and Development (iGReD), UMR CNRS 6293-INSERM U1103, Faculté de Médecine, Clermont-Ferrand, France
| | - Graziella Richard
- Université Clermont Auvergne, Institute of Genetics, Reproduction and Development (iGReD), UMR CNRS 6293-INSERM U1103, Faculté de Médecine, Clermont-Ferrand, France
| | - Vincent Mirouse
- Université Clermont Auvergne, Institute of Genetics, Reproduction and Development (iGReD), UMR CNRS 6293-INSERM U1103, Faculté de Médecine, Clermont-Ferrand, France
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12
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Xie S, Naslavsky N, Caplan S. Emerging insights into CP110 removal during early steps of ciliogenesis. J Cell Sci 2024; 137:jcs261579. [PMID: 38415788 PMCID: PMC10941660 DOI: 10.1242/jcs.261579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024] Open
Abstract
The primary cilium is an antenna-like projection from the plasma membrane that serves as a sensor of the extracellular environment and a crucial signaling hub. Primary cilia are generated in most mammalian cells, and their physiological significance is highlighted by the large number of severe developmental disorders or ciliopathies that occur when primary ciliogenesis is impaired. Primary ciliogenesis is a tightly regulated process, and a central early regulatory step is the removal of a key mother centriole capping protein, CP110 (also known as CCP110). This uncapping allows vesicles docked on the distal appendages of the mother centriole to fuse to form a ciliary vesicle, which is bent into a ciliary sheath as the microtubule-based axoneme grows and extends from the mother centriole. When the mother centriole migrates toward the plasma membrane, the ciliary sheath fuses with the plasma membrane to form the primary cilium. In this Review, we outline key early steps of primary ciliogenesis, focusing on several novel mechanisms for removal of CP110. We also highlight examples of ciliopathies caused by genetic variants that encode key proteins involved in the early steps of ciliogenesis.
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Affiliation(s)
- Shuwei Xie
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Naava Naslavsky
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Steve Caplan
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
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13
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Li X, Liu B, Wen Y, Wang J, Guo YR, Shi A, Lin L. Coordination of RAB-8 and RAB-11 during unconventional protein secretion. J Cell Biol 2024; 223:e202306107. [PMID: 38019180 PMCID: PMC10686230 DOI: 10.1083/jcb.202306107] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 10/17/2023] [Accepted: 11/16/2023] [Indexed: 11/30/2023] Open
Abstract
Multiple physiology-pertinent transmembrane proteins reach the cell surface via the Golgi-bypassing unconventional protein secretion (UcPS) pathway. By employing C. elegans-polarized intestine epithelia, we recently have revealed that the small GTPase RAB-8/Rab8 serves as an important player in the process. Nonetheless, its function and the relevant UcPS itinerary remain poorly understood. Here, we show that deregulated RAB-8 activity resulted in impaired apical UcPS, which increased sensitivity to infection and environmental stress. We also identified the SNARE VTI-1/Vti1a/b as a new RAB-8-interacting factor involved in the apical UcPS. Besides, RAB-11/Rab11 was capable of recruiting RABI-8/Rabin8 to reduce the guanine nucleotide exchange activity of SMGL-1/GEF toward RAB-8, indicating the necessity of a finely tuned RAB-8/RAB-11 network. Populations of RAB-8- and RAB-11-positive endosomal structures containing the apical UcPS cargo moved toward the apical side. In the absence of RAB-11 or its effectors, the cargo was retained in RAB-8- and RAB-11-positive endosomes, respectively, suggesting that these endosomes are utilized as intermediate carriers for the UcPS.
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Affiliation(s)
- Xinxin Li
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bowen Liu
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yue Wen
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiabin Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yusong R. Guo
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Anbing Shi
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Long Lin
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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14
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Guleria VS, Quadri N, Prasad K, Das R, Upadhyai P. Early insights into the role of Exoc6B associated with spondyloepimetaphyseal dysplasia with joint laxity type 3 in primary ciliogenesis and chondrogenic differentiation in vitro. Mol Biol Rep 2024; 51:274. [PMID: 38305850 DOI: 10.1007/s11033-023-09114-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 12/06/2023] [Indexed: 02/03/2024]
Abstract
BACKGROUND Spondyloepimetaphyseal dysplasia with joint laxity type 3 (SEMDJL3) is a rare skeletal dysplasia associated with EXOC6B, a component of the exocyst complex, involved in vesicle tethering and exocytosis at the plasma membrane. So far, EXOC6B and the pathomechanisms underlying SEMDJL3 remain obscure. METHODS AND RESULTS Exoc6b was detected largely at the perinuclear regions and the primary cilia base in ATDC5 prechondrocytes. Its shRNA lentiviral knockdown impeded primary ciliogenesis. In Exoc6b silenced prechondrocytes, Hedgehog signaling was attenuated, including when stimulated with Smoothened agonist. Exoc6b knockdown deregulated the mRNA and protein levels of Col2a1, a marker of chondrocyte proliferation at 7- and 14-days following differentiation. It led to the upregulation of Ihh another marker of proliferative chondrocytes. The levels of Col10a1, a marker of chondrocyte hypertrophy was enhanced at 14 days of differentiation. Congruently, Axin2, a canonical Wnt pathway modulator that inhibits chondrocyte hypertrophy was repressed. The expression of Mmp13 and Adamts4 that are terminal chondrocyte hypertrophy markers involved in extracellular matrix (ECM) remodelling were downregulated at 7 and 14 days of chondrogenesis. Bglap that encodes for the most abundant non-collagenous bone matrix constituent and promotes ECM calcification was suppressed at 14 days of chondrocyte differentiation. ECM mineralization was assessed by Alizarin Red staining. Gene expression and ciliogenesis were investigated by reverse transcription quantitative real-time PCR, immunoblotting, and immunocytochemistry. CONCLUSIONS These findings provide initial insights into the potential role of Exoc6b in primary ciliogenesis and chondrogenic differentiation, contributing towards a preliminary understanding of the molecular pathomechanisms underlying SEMDJL3.
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Affiliation(s)
- Vishal Singh Guleria
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Neha Quadri
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Keshava Prasad
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Ranajit Das
- Division of Data Analytics, Bioinformatics and Structural Biology, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, India
| | - Priyanka Upadhyai
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India.
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15
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Accogli A, Shakya S, Yang T, Insinna C, Kim SY, Bell D, Butov KR, Severino M, Niceta M, Scala M, Lee HS, Yoo T, Stauffer J, Zhao H, Fiorillo C, Pedemonte M, Diana MC, Baldassari S, Zakharova V, Shcherbina A, Rodina Y, Fagerberg C, Roos LS, Wierzba J, Dobosz A, Gerard A, Potocki L, Rosenfeld JA, Lalani SR, Scott TM, Scott D, Azamian MS, Louie R, Moore HW, Champaigne NL, Hollingsworth G, Torella A, Nigro V, Ploski R, Salpietro V, Zara F, Pizzi S, Chillemi G, Ognibene M, Cooney E, Do J, Linnemann A, Larsen MJ, Specht S, Walters KJ, Choi HJ, Choi M, Tartaglia M, Youkharibache P, Chae JH, Capra V, Park SG, Westlake CJ. Variants in the WDR44 WD40-repeat domain cause a spectrum of ciliopathy by impairing ciliogenesis initiation. Nat Commun 2024; 15:365. [PMID: 38191484 PMCID: PMC10774338 DOI: 10.1038/s41467-023-44611-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 12/14/2023] [Indexed: 01/10/2024] Open
Abstract
WDR44 prevents ciliogenesis initiation by regulating RAB11-dependent vesicle trafficking. Here, we describe male patients with missense and nonsense variants within the WD40 repeats (WDR) of WDR44, an X-linked gene product, who display ciliopathy-related developmental phenotypes that we can model in zebrafish. The patient phenotypic spectrum includes developmental delay/intellectual disability, hypotonia, distinct craniofacial features and variable presence of brain, renal, cardiac and musculoskeletal abnormalities. We demonstrate that WDR44 variants associated with more severe disease impair ciliogenesis initiation and ciliary signaling. Because WDR44 negatively regulates ciliogenesis, it was surprising that pathogenic missense variants showed reduced abundance, which we link to misfolding of WDR autonomous repeats and degradation by the proteasome. We discover that disease severity correlates with increased RAB11 binding, which we propose drives ciliogenesis initiation dysregulation. Finally, we discover interdomain interactions between the WDR and NH2-terminal region that contains the RAB11 binding domain (RBD) and show patient variants disrupt this association. This study provides new insights into WDR44 WDR structure and characterizes a new syndrome that could result from impaired ciliogenesis.
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Affiliation(s)
- Andrea Accogli
- Division of Medical Genetics, Department of Specialized Medicine, McGill University Health Centre (MUHC), Montreal, QC, Canada
- Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Saurabh Shakya
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, USA
| | - Taewoo Yang
- Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, 08826, Seoul, Republic of Korea
| | - Christine Insinna
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, USA
| | - Soo Yeon Kim
- Department of Genomic Medicine, Seoul National University Hospital, 03080, Seoul, Republic of Korea
| | - David Bell
- Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Kirill R Butov
- Department of Immunology, Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, 117997, Russia
- Department of Molecular Biology and Medical Biotechnology, Pirogov Russian National Research Medical University, Moscow, 117997, Russia
| | | | - Marcello Niceta
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146, Rome, Italy
| | - Marcello Scala
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Università Degli Studi di Genova, Genoa, Italy
- Pediatric Neurology and Muscular Diseases Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Hyun Sik Lee
- School of Biological Sciences, Seoul National University, 08826, Seoul, Republic of Korea
| | - Taekyeong Yoo
- Department of Biomedical Sciences, Seoul National University College of Medicine, 03080, Seoul, Republic of Korea
| | - Jimmy Stauffer
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, USA
| | - Huijie Zhao
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, USA
| | - Chiara Fiorillo
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Università Degli Studi di Genova, Genoa, Italy
- Child Neuropsychiatry, IRCCS Istituto G.Gaslini, DINOGMI University of Genova, Largo Gaslini 5, Genoa, Italy
| | - Marina Pedemonte
- Pediatric Neurology and Muscular Diseases Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Maria C Diana
- Pediatric Neurology and Muscular Diseases Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Simona Baldassari
- Unit of Medical Genetics, IRCCS Istituto Giannina Gaslini, 16147, Genoa, Italy
| | - Viktoria Zakharova
- National Medical Research Center for Endocrinology, Clinical data analysis department, Moscow, Russian Federation, Russia
| | - Anna Shcherbina
- Department of Immunology, Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, 117997, Russia
| | - Yulia Rodina
- Department of Immunology, Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, 117997, Russia
| | - Christina Fagerberg
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
| | - Laura Sønderberg Roos
- Department of Clinical Genetics, Rigshospitalet, Copenhagen University Hospital, København, Denmark
| | - Jolanta Wierzba
- Department of Pediatrics and Internal Medicine Nursing, Department of Rare Disorders, Medical University of Gdansk, Gdansk, Poland
| | - Artur Dobosz
- Department of Medical Genetics, Faculty of Medicine, Jagiellonian University Medical College, 30-663, Krakow, Poland
| | - Amanda Gerard
- Texas Children's Hospital, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Lorraine Potocki
- Texas Children's Hospital, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Jill A Rosenfeld
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
- Baylor Genetics Laboratories, Houston, TX, USA
| | - Seema R Lalani
- Texas Children's Hospital, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Tiana M Scott
- Division of Microbiology and Immunology, Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT, 84112, USA
| | - Daryl Scott
- Baylor Genetics Laboratories, Houston, TX, USA
| | | | | | | | | | | | - Annalaura Torella
- Telethon Institute of Genetics and Medicine (TIGEM), Naples, Italy
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Vincenzo Nigro
- Telethon Institute of Genetics and Medicine (TIGEM), Naples, Italy
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Rafal Ploski
- Department of Medical Genetics, Medical University of Warsaw, Pawińskiego 3C, 02-106, Warsaw, Poland
| | - Vincenzo Salpietro
- Department of Neuromuscular Disorders, Queen Square Institute of Neurology, University. College London, London, WC1N 3BG, UK
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100, L'Aquila, Italy
| | - Federico Zara
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Università Degli Studi di Genova, Genoa, Italy
- Unit of Medical Genetics, IRCCS Istituto Giannina Gaslini, 16147, Genoa, Italy
| | - Simone Pizzi
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146, Rome, Italy
| | - Giovanni Chillemi
- Department for Innovation in Biological, Agro-food and Forest systems, DIBAF, University of Tuscia, Via S. Camillo de Lellis s.n.c, 01100, Viterbo, Italy
| | - Marzia Ognibene
- Unit of Medical Genetics, IRCCS Istituto Giannina Gaslini, 16147, Genoa, Italy
| | - Erin Cooney
- Division of Medical Genetics and Metabolism, Department of Pediatrics, University of Texas Medical Branch, Galveston, TX, USA
| | - Jenny Do
- Division of Medical Genetics and Metabolism, Department of Pediatrics, University of Texas Medical Branch, Galveston, TX, USA
| | - Anders Linnemann
- Hans Christian Andersen Children's Hospital, Odense University Hospital, Odense, Denmark
| | - Martin J Larsen
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
- Clinical Genome Center, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Suzanne Specht
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, USA
| | - Kylie J Walters
- Center for Structural Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, USA
| | - Hee-Jung Choi
- School of Biological Sciences, Seoul National University, 08826, Seoul, Republic of Korea
| | - Murim Choi
- Department of Biomedical Sciences, Seoul National University College of Medicine, 03080, Seoul, Republic of Korea
| | - Marco Tartaglia
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146, Rome, Italy
| | - Phillippe Youkharibache
- Cancer Science Data Lab, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jong-Hee Chae
- Department of Genomic Medicine, Seoul National University Hospital, 03080, Seoul, Republic of Korea
| | - Valeria Capra
- Child Neuropsychiatry, IRCCS Istituto G.Gaslini, DINOGMI University of Genova, Largo Gaslini 5, Genoa, Italy
| | - Sung-Gyoo Park
- Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, 08826, Seoul, Republic of Korea.
| | - Christopher J Westlake
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, USA.
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16
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Almousa H, Lewis SA, Bakhtiari S, Nordlie SH, Pagnozzi A, Magee H, Efthymiou S, Heim JA, Cornejo P, Zaki MS, Anwar N, Maqbool S, Rahman F, Neilson DE, Vemuri A, Jin SC, Yang XR, Heidari A, van Gassen K, Trimouille A, Thauvin-Robinet C, Liu J, Bruel AL, Tomoum H, Shata MO, Hashem MO, Toosi MB, Karimiani EG, Yeşil G, Lingappa L, Baruah D, Ebrahimzadeh F, Van-Gils J, Faivre L, Zamani M, Galehdari H, Sadeghian S, Shariati G, Mohammad R, van der Smagt J, Qari A, Vincent JB, Innes AM, Dursun A, Özgül RK, Akar HT, Bilguvar K, Mignot C, Keren B, Raveli C, Burglen L, Afenjar A, Kaat LD, van Slegtenhorst M, Alkuraya F, Houlden H, Padilla-Lopez S, Maroofian R, Sacher M, Kruer MC. TRAPPC6B biallelic variants cause a neurodevelopmental disorder with TRAPP II and trafficking disruptions. Brain 2024; 147:311-324. [PMID: 37713627 PMCID: PMC10766242 DOI: 10.1093/brain/awad301] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 07/11/2023] [Accepted: 08/10/2023] [Indexed: 09/17/2023] Open
Abstract
Highly conserved transport protein particle (TRAPP) complexes regulate subcellular trafficking pathways. Accurate protein trafficking has been increasingly recognized to be critically important for normal development, particularly in the nervous system. Variants in most TRAPP complex subunits have been found to lead to neurodevelopmental disorders with diverse but overlapping phenotypes. We expand on limited prior reports on TRAPPC6B with detailed clinical and neuroradiologic assessments, and studies on mechanisms of disease, and new types of variants. We describe 29 additional patients from 18 independent families with biallelic variants in TRAPPC6B. We identified seven homozygous nonsense (n = 12 patients) and eight canonical splice-site variants (n = 17 patients). In addition, we identified one patient with compound heterozygous splice-site/missense variants with a milder phenotype and one patient with homozygous missense variants. Patients displayed non-progressive microcephaly, global developmental delay/intellectual disability, epilepsy and absent expressive language. Movement disorders including stereotypies, spasticity and dystonia were also observed. Brain imaging revealed reductions in cortex, cerebellum and corpus callosum size with frequent white matter hyperintensity. Volumetric measurements indicated globally diminished volume rather than specific regional losses. We identified a reduced rate of trafficking into the Golgi apparatus and Golgi fragmentation in patient-derived fibroblasts that was rescued by wild-type TRAPPC6B. Molecular studies revealed a weakened interaction between mutant TRAPPC6B (c.454C>T, p.Q152*) and its TRAPP binding partner TRAPPC3. Patient-derived fibroblasts from the TRAPPC6B (c.454C>T, p.Q152*) variant displayed reduced levels of TRAPPC6B as well as other TRAPP II complex-specific members (TRAPPC9 and TRAPPC10). Interestingly, the levels of the TRAPPC6B homologue TRAPPC6A were found to be elevated. Moreover, co-immunoprecipitation experiments showed that TRAPPC6A co-precipitates equally with TRAPP II and TRAPP III, while TRAPPC6B co-precipitates significantly more with TRAPP II, suggesting enrichment of the protein in the TRAPP II complex. This implies that variants in TRAPPC6B may preferentially affect TRAPP II functions compared to TRAPP III functions. Finally, we assessed phenotypes in a Drosophila TRAPPC6B-deficiency model. Neuronal TRAPPC6B knockdown impaired locomotion and led to wing posture defects, supporting a role for TRAPPC6B in neuromotor function. Our findings confirm the association of damaging biallelic TRAPPC6B variants with microcephaly, intellectual disability, language impairments, and epilepsy. A subset of patients also exhibited dystonia and/or spasticity with impaired ambulation. These features overlap with disorders arising from pathogenic variants in other TRAPP subunits, particularly components of the TRAPP II complex. These findings suggest that TRAPPC6B is essential for brain development and function, and TRAPP II complex activity may be particularly relevant for mediating this function.
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Affiliation(s)
- Hashem Almousa
- Department of Biology, Concordia University, Montreal, Quebec H4B1R6, Canada
| | - Sara A Lewis
- Barrow Neurological Institute, Phoenix Children’s Hospital, Phoenix, AZ 85016, USA
- Departments of Child Health, Cellular and Molecular Medicine, Genetics, and Neurology, University of Arizona College of Medicine—Phoenix, Phoenix, AZ 85004, USA
| | - Somayeh Bakhtiari
- Barrow Neurological Institute, Phoenix Children’s Hospital, Phoenix, AZ 85016, USA
- Departments of Child Health, Cellular and Molecular Medicine, Genetics, and Neurology, University of Arizona College of Medicine—Phoenix, Phoenix, AZ 85004, USA
| | - Sandra Hinz Nordlie
- Barrow Neurological Institute, Phoenix Children’s Hospital, Phoenix, AZ 85016, USA
- Departments of Child Health, Cellular and Molecular Medicine, Genetics, and Neurology, University of Arizona College of Medicine—Phoenix, Phoenix, AZ 85004, USA
| | - Alex Pagnozzi
- CSIRO Health and Biosecurity, The Australian e-Health Research Centre, Brisbane 4029, Australia
| | - Helen Magee
- Barrow Neurological Institute, Phoenix Children’s Hospital, Phoenix, AZ 85016, USA
- Departments of Child Health, Cellular and Molecular Medicine, Genetics, and Neurology, University of Arizona College of Medicine—Phoenix, Phoenix, AZ 85004, USA
| | - Stephanie Efthymiou
- Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London WC1N 3BG, UK
| | - Jennifer A Heim
- Barrow Neurological Institute, Phoenix Children’s Hospital, Phoenix, AZ 85016, USA
| | - Patricia Cornejo
- Pediatric Neuroradiology Division, Pediatric Radiology, Barrow Neurological Institute, Phoenix Children’s Hospital, Phoenix, AZ 85016, USA
- Department of Child Health, University of Arizona College of Medicine, Phoenix, AZ 85004, USA
- Department of Radiology, Mayo Clinic, Scottsdale, AZ 85259, USA
| | - Maha S Zaki
- Clinical Genetics Department, Human Genetics and Genome Research Division, National Research Centre, Cairo 12622, Egypt
- Genetics Department, Armed Forces College of Medicine (AFCM), Cairo 4460015, Egypt
| | - Najwa Anwar
- Department of Developmental-Behavioural Paediatrics, The Children's Hospital and Institute of Child Health, Lahore 54000, Pakistan
| | - Shazia Maqbool
- Department of Developmental-Behavioural Paediatrics, The Children's Hospital and Institute of Child Health, Lahore 54000, Pakistan
| | - Fatima Rahman
- Department of Developmental-Behavioural Paediatrics, The Children's Hospital and Institute of Child Health, Lahore 54000, Pakistan
| | - Derek E Neilson
- Genetics and Metabolism, Phoenix Children’s Hospital, Phoenix, AZ 85016, USA
| | - Anusha Vemuri
- Department of Pathology, University of Chicago, Chicago, IL 60637, USA
| | - Sheng Chih Jin
- Department of Genetics, Washington University, St.Louis, MO 63110, USA
| | - Xiao-Ru Yang
- Department of Medical Genetics and Alberta Children’s Hospital Research Institute, Cumming School of Medicine, University of Calgary, S.W. Calgary, AB T2N 4N1, Canada
| | - Abolfazl Heidari
- Reference Laboratory, Qazvin Medical University, Qazvin 34148-33245, Iran
| | - Koen van Gassen
- Division of Laboratories, Pharmacy and Biomedical Genetics, Section of Clinical Genetics, University Medical Center Utrecht (UMCU), 3584 CX Utrecht, Netherlands
| | - Aurélien Trimouille
- Laboratoire de Génétique Moléculaire, Service de Génétique Médicale, CHU Bordeaux—Hôpital Pellegrin, Place Amélie Raba Léon, 33000 Bordeaux, France
| | - Christel Thauvin-Robinet
- Department of Genetics and Reference Center for Development Disorders and Intellectual Disabilities, FHU TRANSLAD, CHU Dijon Bourgogne, 21000 Dijon, France
- Unité Fontctionnelle d’Innovation diagnostiques des maladies rares, FHU TRANSLAD, CHU Dijon Bourgogne, 21000 Dijon, France
- GAD ‘Génétique des Anomalies du Développement’, INSERM-Université de Bourgogne UMR1231, 21078 Dijon, France
| | - James Liu
- Barrow Neurological Institute, Phoenix Children’s Hospital, Phoenix, AZ 85016, USA
- Departments of Child Health, Cellular and Molecular Medicine, Genetics, and Neurology, University of Arizona College of Medicine—Phoenix, Phoenix, AZ 85004, USA
| | - Ange-Line Bruel
- Unité Fontctionnelle d’Innovation diagnostiques des maladies rares, FHU TRANSLAD, CHU Dijon Bourgogne, 21000 Dijon, France
- GAD ‘Génétique des Anomalies du Développement’, INSERM-Université de Bourgogne UMR1231, 21078 Dijon, France
| | - Hoda Tomoum
- Department of Pediatrics, Ain Shams University, Cairo 11516, Egypt
| | | | - Mais O Hashem
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
| | - Mehran Beiraghi Toosi
- Pediatric Neurology Department, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad 13944-91388, Iran
- Neuroscience Research Center, Mashhad University of Medical Science, Mashhad 13944-91388, Iran
| | - Ehsan Ghayoor Karimiani
- Molecular and Clinical Sciences Institute, St.George’s, University of London, London SW17 0RE, UK
| | - Gözde Yeşil
- Istanbul Medical Faculty Department of Medical Genetics, Istanbul University, Istanbul 34452, Turkey
| | - Lokesh Lingappa
- Pediatric Neurology, Rainbow Children Hospital, Hyderabad 500034, India
| | - Debangana Baruah
- Pediatric Neurology, Rainbow Children Hospital, Hyderabad 500034, India
| | - Farnoosh Ebrahimzadeh
- Department of Internal Medicine, Mashhad University of Medical Sciences, Mashhad 13944-91388, Iran
| | - Julien Van-Gils
- Division of Laboratories, Pharmacy and Biomedical Genetics, Section of Clinical Genetics, University Medical Center Utrecht (UMCU), 3584 CX Utrecht, Netherlands
| | - Laurence Faivre
- Department of Genetics and Reference Center for Development Disorders and Intellectual Disabilities, FHU TRANSLAD, CHU Dijon Bourgogne, 21000 Dijon, France
| | - Mina Zamani
- Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz 6135783151, Iran
- Narges Medical Genetics and Prenatal Diagnosis Laboratory, Ahvaz 6155889467, Iran
| | - Hamid Galehdari
- Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz 6135783151, Iran
| | - Saeid Sadeghian
- Department of Pediatric Neurology, Golestan Medical, Educational, and Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz 6135733118, Iran
| | - Gholamreza Shariati
- Narges Medical Genetics and Prenatal Diagnosis Laboratory, Ahvaz 6155889467, Iran
- Department of Medical Genetics, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz 6135733118, Iran
| | - Rahema Mohammad
- Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London WC1N 3BG, UK
| | - Jasper van der Smagt
- Division of Laboratories, Pharmacy and Biomedical Genetics, Section of Clinical Genetics, University Medical Center Utrecht (UMCU), 3584 CX Utrecht, Netherlands
| | - Alya Qari
- Medical Genomics Department, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh 11564, Saudi Arabia
| | - John B Vincent
- Molecular Neuropsychiatry & Development (MiND) Lab, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON M6J 1H4, Canada
| | - A Micheil Innes
- Department of Medical Genetics and Alberta Children’s Hospital Research Institute, Cumming School of Medicine, University of Calgary, S.W. Calgary, AB T2N 4N1, Canada
| | - Ali Dursun
- Department of Pediatric Metabolism, Hacettepe University, Faculty of Medicine & Institute of Child Health, Ankara 06800, Turkey
| | - R Köksal Özgül
- Department of Pediatric Metabolism, Hacettepe University, Faculty of Medicine & Institute of Child Health, Ankara 06800, Turkey
| | - Halil Tuna Akar
- Department of Pediatric Metabolism, Hacettepe University, Faculty of Medicine & Institute of Child Health, Ankara 06800, Turkey
| | - Kaya Bilguvar
- Department of Medical Genetics, Acibadem Mehmet Ali Aydinlar University, Istanbul 34752, Turkey
- Department of Neurosurgery and Genetics, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Cyril Mignot
- Département de Génétique, APHP Sorbonne Université, Hôpital Trousseau & Groupe Hospitalier Pitié-Salpêtrière, 75013 Paris, France
- Centre de Référence Déficiences Intellectuelles de Causes Rares, 75012 Paris, France
| | - Boris Keren
- Département de Génétique, APHP Sorbonne Université, Hôpital Trousseau & Groupe Hospitalier Pitié-Salpêtrière, 75013 Paris, France
| | - Claudia Raveli
- APHP Sorbonne Université, Service de Neuropédiatrie, Hôpital Trousseau, 75012 Paris, France
| | - Lydie Burglen
- Département de Génétique, Centre de référence des malformations et maladies congénitales du cervelet, APHP. Sorbonne Université, Hôpital Trousseau, 75012 Paris, France
| | - Alexandra Afenjar
- Département de Génétique, Centre de référence des malformations et maladies congénitales du cervelet, APHP. Sorbonne Université, Hôpital Trousseau, 75012 Paris, France
| | - Laura Donker Kaat
- Department of Clinical Genetics, Erasmus Medical Center, 3000 Rotterdam, The Netherlands
| | | | - Fowzan Alkuraya
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
| | - Henry Houlden
- Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London WC1N 3BG, UK
| | - Sergio Padilla-Lopez
- Barrow Neurological Institute, Phoenix Children’s Hospital, Phoenix, AZ 85016, USA
- Departments of Child Health, Cellular and Molecular Medicine, Genetics, and Neurology, University of Arizona College of Medicine—Phoenix, Phoenix, AZ 85004, USA
| | - Reza Maroofian
- Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London WC1N 3BG, UK
| | - Michael Sacher
- Department of Biology, Concordia University, Montreal, Quebec H4B1R6, Canada
- Department of Anatomy and Cell Biology, McGill University, Montreal, Quebec H3A0C7, Canada
| | - Michael C Kruer
- Barrow Neurological Institute, Phoenix Children’s Hospital, Phoenix, AZ 85016, USA
- Departments of Child Health, Cellular and Molecular Medicine, Genetics, and Neurology, University of Arizona College of Medicine—Phoenix, Phoenix, AZ 85004, USA
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17
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Bhat S, Dietz A, Senf K, Nietzsche S, Hirabayashi Y, Westermann M, Neuhaus EM. GPRC5C regulates the composition of cilia in the olfactory system. BMC Biol 2023; 21:292. [PMID: 38110903 PMCID: PMC10729543 DOI: 10.1186/s12915-023-01790-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 11/30/2023] [Indexed: 12/20/2023] Open
Abstract
BACKGROUND Olfactory sensory neurons detect odourants via multiple long cilia that protrude from their dendritic endings. The G protein-coupled receptor GPRC5C was identified as part of the olfactory ciliary membrane proteome, but its function and localization is unknown. RESULTS High-resolution confocal and electron microscopy revealed that GPRC5C is located at the base of sensory cilia in olfactory neurons, but not in primary cilia of immature neurons or stem cells. Additionally, GPRC5C localization in sensory cilia parallels cilia formation and follows the formation of the basal body. In closer examination, GPRC5C was found in the ciliary transition zone. GPRC5C deficiency altered the structure of sensory cilia and increased ciliary layer thickness. However, primary cilia were unaffected. Olfactory sensory neurons from Gprc5c-deficient mice exhibited altered localization of olfactory signalling cascade proteins, and of ciliary phosphatidylinositol-4,5-bisphosphat. Sensory neurons also exhibited increased neuronal activity as well as altered mitochondrial morphology, and knockout mice had an improved ability to detect food pellets based on smell. CONCLUSIONS Our study shows that GPRC5C regulates olfactory cilia composition and length, thereby controlling odour perception.
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Affiliation(s)
- Sneha Bhat
- Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, 07747, Jena, Germany
| | - André Dietz
- Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, 07747, Jena, Germany
| | - Katja Senf
- Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, 07747, Jena, Germany
| | - Sandor Nietzsche
- Centre for Electron Microscopy, Jena University Hospital, Friedrich Schiller University Jena, Ziegelmühlenweg 1, 07743, Jena, Germany
| | - Yoshio Hirabayashi
- Institute for Environmental and Gender-Specific Medicine, Juntendo University Graduate School of Medicine, Chiba, 279-0021, Japan
- RIKEN Cluster for Pioneering Research, RIKEN, Wako, Saitama, 351-0198, Japan
| | - Martin Westermann
- Centre for Electron Microscopy, Jena University Hospital, Friedrich Schiller University Jena, Ziegelmühlenweg 1, 07743, Jena, Germany
| | - Eva Maria Neuhaus
- Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, 07747, Jena, Germany.
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18
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Tang D, Zheng K, Zhu J, Jin X, Bao H, Jiang L, Li H, Wang Y, Lu Y, Liu J, Liu H, Tang C, Feng S, Dong X, Xu L, Yin Y, Dang S, Wei X, Ren H, Dong B, Dai L, Cheng W, Wan M, Li Z, Chen J, Li H, Kong E, Wang K, Lu K, Qi S. ALS-linked C9orf72-SMCR8 complex is a negative regulator of primary ciliogenesis. Proc Natl Acad Sci U S A 2023; 120:e2220496120. [PMID: 38064514 PMCID: PMC10723147 DOI: 10.1073/pnas.2220496120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 10/25/2023] [Indexed: 12/17/2023] Open
Abstract
Massive GGGGCC (G4C2) repeat expansion in C9orf72 and the resulting loss of C9orf72 function are the key features of ~50% of inherited amyotrophic lateral sclerosis and frontotemporal dementia cases. However, the biological function of C9orf72 remains unclear. We previously found that C9orf72 can form a stable GTPase activating protein (GAP) complex with SMCR8 (Smith-Magenis chromosome region 8). Herein, we report that the C9orf72-SMCR8 complex is a major negative regulator of primary ciliogenesis, abnormalities in which lead to ciliopathies. Mechanistically, the C9orf72-SMCR8 complex suppresses the primary cilium as a RAB8A GAP. Moreover, based on biochemical analysis, we found that C9orf72 is the RAB8A binding subunit and that SMCR8 is the GAP subunit in the complex. We further found that the C9orf72-SMCR8 complex suppressed the primary cilium in multiple tissues from mice, including but not limited to the brain, kidney, and spleen. Importantly, cells with C9orf72 or SMCR8 knocked out were more sensitive to hedgehog signaling. These results reveal the unexpected impact of C9orf72 on primary ciliogenesis and elucidate the pathogenesis of diseases caused by the loss of C9orf72 function.
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Affiliation(s)
- Dan Tang
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Kaixuan Zheng
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Jiangli Zhu
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
- Institute of Psychiatry and Neuroscience, Xinxiang Medical University, Xinxiang453000, People’s Republic of China
| | - Xi Jin
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Hui Bao
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Lan Jiang
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Huihui Li
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Yichang Wang
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu610041, People’s Republic of China
| | - Ying Lu
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Jiaming Liu
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Hang Liu
- Division of Life Science, Center of Systems Biology and Human Health, The Hong Kong University of Science and Technology, Kowloon, Hong Kong Special Administrative Region, People’s Republic of China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou511458, People’s Republic of China
- HKUST-Shenzhen Research Institute, Nanshan, Shenzhen518057, People’s Republic of China
| | - Chengbing Tang
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Shijian Feng
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Xiuju Dong
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Liangting Xu
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Yike Yin
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Shangyu Dang
- Division of Life Science, Center of Systems Biology and Human Health, The Hong Kong University of Science and Technology, Kowloon, Hong Kong Special Administrative Region, People’s Republic of China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou511458, People’s Republic of China
- HKUST-Shenzhen Research Institute, Nanshan, Shenzhen518057, People’s Republic of China
| | - Xiawei Wei
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu610041, People’s Republic of China
| | - Haiyan Ren
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Biao Dong
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu610041, People’s Republic of China
- Sichuan Real & Best Biotech Co., Ltd., Chengdu610219, People’s Republic of China
| | - Lunzhi Dai
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Wei Cheng
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Meihua Wan
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Zhonghan Li
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Jing Chen
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Hong Li
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Eryan Kong
- Institute of Psychiatry and Neuroscience, Xinxiang Medical University, Xinxiang453000, People’s Republic of China
| | - Kunjie Wang
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Kefeng Lu
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
| | - Shiqian Qi
- Department of Urology, Institute of Urology, State Key Laboratory of Biotherapy, West China Hospital, College of Life Sciences, Sichuan University, and National Collaborative Innovation Center, Chengdu610041, People’s Republic of China
- National Health Commission Key Lab of Transplant Engineering and Immunology, West China Hospital, Sichuan University, Chengdu610041, People’s Republic of China
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19
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Aljiboury A, Hehnly H. The centrosome - diverse functions in fertilization and development across species. J Cell Sci 2023; 136:jcs261387. [PMID: 38038054 PMCID: PMC10730021 DOI: 10.1242/jcs.261387] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023] Open
Abstract
The centrosome is a non-membrane-bound organelle that is conserved across most animal cells and serves various functions throughout the cell cycle. In dividing cells, the centrosome is known as the spindle pole and nucleates a robust microtubule spindle to separate genetic material equally into two daughter cells. In non-dividing cells, the mother centriole, a substructure of the centrosome, matures into a basal body and nucleates cilia, which acts as a signal-transducing antenna. The functions of centrosomes and their substructures are important for embryonic development and have been studied extensively using in vitro mammalian cell culture or in vivo using invertebrate models. However, there are considerable differences in the composition and functions of centrosomes during different aspects of vertebrate development, and these are less studied. In this Review, we discuss the roles played by centrosomes, highlighting conserved and divergent features across species, particularly during fertilization and embryonic development.
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Affiliation(s)
- Abrar Aljiboury
- Syracuse University, Department of Biology, 107 College Place, Syracuse, NY 13244, USA
- Syracuse University, BioInspired Institute, Syracuse, NY 13244, USA
| | - Heidi Hehnly
- Syracuse University, Department of Biology, 107 College Place, Syracuse, NY 13244, USA
- Syracuse University, BioInspired Institute, Syracuse, NY 13244, USA
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20
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Serres MP, Shaughnessy R, Escot S, Hammich H, Cuvelier F, Salles A, Rocancourt M, Verdon Q, Gaffuri AL, Sourigues Y, Malherbe G, Velikovsky L, Chardon F, Sassoon N, Tinevez JY, Callebaut I, Formstecher E, Houdusse A, David NB, Pylypenko O, Echard A. MiniBAR/GARRE1 is a dual Rac and Rab effector required for ciliogenesis. Dev Cell 2023; 58:2477-2494.e8. [PMID: 37875118 DOI: 10.1016/j.devcel.2023.09.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 07/07/2023] [Accepted: 09/29/2023] [Indexed: 10/26/2023]
Abstract
Cilia protrude from the cell surface and play critical roles in intracellular signaling, environmental sensing, and development. Reduced actin-dependent contractility and intracellular trafficking are both required for ciliogenesis, but little is known about how these processes are coordinated. Here, we identified a Rac1- and Rab35-binding protein with a truncated BAR (Bin/amphiphysin/Rvs) domain that we named MiniBAR (also known as KIAA0355/GARRE1), which plays a key role in ciliogenesis. MiniBAR colocalizes with Rac1 and Rab35 at the plasma membrane and on intracellular vesicles trafficking to the ciliary base and exhibits fast pulses at the ciliary membrane. MiniBAR depletion leads to short cilia, resulting from abnormal Rac-GTP/Rho-GTP levels and increased acto-myosin-II-dependent contractility together with defective trafficking of IFT88 and ARL13B into cilia. MiniBAR-depleted zebrafish embryos display dysfunctional short cilia and hallmarks of ciliopathies, including left-right asymmetry defects. Thus, MiniBAR is a dual Rac and Rab effector that controls both actin cytoskeleton and membrane trafficking for ciliogenesis.
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Affiliation(s)
- Murielle P Serres
- Institut Pasteur, Université de Paris, CNRS UMR3691, Membrane Traffic and Cell Division Laboratory, 25-28 rue du Dr Roux, 75015 Paris, France
| | - Ronan Shaughnessy
- Institut Pasteur, Université de Paris, CNRS UMR3691, Membrane Traffic and Cell Division Laboratory, 25-28 rue du Dr Roux, 75015 Paris, France
| | - Sophie Escot
- Laboratoire d'Optique et Biosciences (LOB), CNRS, INSERM, Ecole Polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France
| | - Hussein Hammich
- Institut Curie, PSL Research University, CNRS UMR144, Structural Motility, 26 rue d'Ulm, 75005 Paris, France
| | - Frédérique Cuvelier
- Institut Pasteur, Université de Paris, CNRS UMR3691, Membrane Traffic and Cell Division Laboratory, 25-28 rue du Dr Roux, 75015 Paris, France
| | - Audrey Salles
- Institut Pasteur, Université de Paris, UTechS Photonic BioImaging (UTechS PBI), Centre de Recherche et de Ressources Technologiques C2RT, 25-28 rue du Dr Roux, 75015 Paris, France
| | - Murielle Rocancourt
- Institut Pasteur, Université de Paris, CNRS UMR3691, Membrane Traffic and Cell Division Laboratory, 25-28 rue du Dr Roux, 75015 Paris, France
| | - Quentin Verdon
- Institut Pasteur, Université de Paris, CNRS UMR3691, Membrane Traffic and Cell Division Laboratory, 25-28 rue du Dr Roux, 75015 Paris, France
| | - Anne-Lise Gaffuri
- Institut Pasteur, Université de Paris, CNRS UMR3691, Membrane Traffic and Cell Division Laboratory, 25-28 rue du Dr Roux, 75015 Paris, France
| | - Yannick Sourigues
- Institut Curie, PSL Research University, CNRS UMR144, Structural Motility, 26 rue d'Ulm, 75005 Paris, France
| | - Gilles Malherbe
- Institut Curie, PSL Research University, CNRS UMR144, Structural Motility, 26 rue d'Ulm, 75005 Paris, France
| | - Leonid Velikovsky
- Institut Curie, PSL Research University, CNRS UMR144, Structural Motility, 26 rue d'Ulm, 75005 Paris, France
| | - Florian Chardon
- Institut Curie, PSL Research University, CNRS UMR144, Structural Motility, 26 rue d'Ulm, 75005 Paris, France
| | - Nathalie Sassoon
- Institut Pasteur, Université de Paris, CNRS UMR3691, Membrane Traffic and Cell Division Laboratory, 25-28 rue du Dr Roux, 75015 Paris, France
| | - Jean-Yves Tinevez
- Institut Pasteur, Université de Paris, Image Analysis Hub, 25-28 rue du Dr Roux, 75015 Paris, France
| | - Isabelle Callebaut
- Sorbonne Université, Muséum National d'Histoire Naturelle, UMR CNRS 7590, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, IMPMC, Paris, France
| | - Etienne Formstecher
- Hybrigenics Services SAS, 1 rue Pierre Fontaine 91000 Evry, Courcouronnes, France
| | - Anne Houdusse
- Institut Curie, PSL Research University, CNRS UMR144, Structural Motility, 26 rue d'Ulm, 75005 Paris, France
| | - Nicolas B David
- Laboratoire d'Optique et Biosciences (LOB), CNRS, INSERM, Ecole Polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France
| | - Olena Pylypenko
- Institut Curie, PSL Research University, CNRS UMR144, Structural Motility, 26 rue d'Ulm, 75005 Paris, France
| | - Arnaud Echard
- Institut Pasteur, Université de Paris, CNRS UMR3691, Membrane Traffic and Cell Division Laboratory, 25-28 rue du Dr Roux, 75015 Paris, France.
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21
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Del-Río-Robles JE, Tomás-Morales JA, Zavala-Barrera C, Castillo-Kauil A, García-Jiménez I, Vázquez-Prado J, Reyes-Cruz G. CaSR links endocytic and secretory pathways via MADD, a Rab11A effector that activates Rab27B. Cell Signal 2023; 111:110857. [PMID: 37604243 DOI: 10.1016/j.cellsig.2023.110857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 08/23/2023]
Abstract
Calcium sensing receptor (CaSR), a class C GPCR, regulates essential secretory pathways, involving communication between endocytic and secretory Rab GTPases, via still to be fully defined molecular mechanisms. To address how communication between endocytic and secretory vesicles occurs, we hypothesized that CaSR activates endocytic Rab11A-dependent effector pathways acting upstream of Rab27B-regulated secretion. We found that Rab11A is critical to promote Rab27B-dependent secretion of chemotactic and inflammatory factors, including IL-8, CCL2/MCP-1, and IL1-β, in response to CaSR stimulation. It also attenuates secretion of IL-6. The process is mediated by endosomal PI3-kinases, Vps34 and PI3KC2α, which promote Rab27B activation. Rab11A interacts with and activates MADD, a guanine exchange factor for Rab3, and Rab27A/B. Mechanistically, CaSR drives Rab11A-dependent coupling of recycling endosomes to secretory-vesicles via endosomal PI3K-mediated activation of a MADD/Rab27B pathway.
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Affiliation(s)
- Jorge Eduardo Del-Río-Robles
- Department of Cell Biology, Centro de Investigación y Estudios Avanzados del IPN (Cinvestav-IPN), Mexico City, Mexico
| | - Janik Adriana Tomás-Morales
- Department of Cell Biology, Centro de Investigación y Estudios Avanzados del IPN (Cinvestav-IPN), Mexico City, Mexico
| | - Cesar Zavala-Barrera
- Department of Cell Biology, Centro de Investigación y Estudios Avanzados del IPN (Cinvestav-IPN), Mexico City, Mexico
| | - Alejandro Castillo-Kauil
- Department of Cell Biology, Centro de Investigación y Estudios Avanzados del IPN (Cinvestav-IPN), Mexico City, Mexico
| | - Irving García-Jiménez
- Department of Cell Biology, Centro de Investigación y Estudios Avanzados del IPN (Cinvestav-IPN), Mexico City, Mexico
| | - José Vázquez-Prado
- Department of Pharmacology, Centro de Investigación y Estudios Avanzados del IPN (Cinvestav-IPN), Mexico City, Mexico
| | - Guadalupe Reyes-Cruz
- Department of Cell Biology, Centro de Investigación y Estudios Avanzados del IPN (Cinvestav-IPN), Mexico City, Mexico.
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22
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Lian F, Li H, Ma Y, Zhou R, Wu W. Recent advances in primary cilia in bone metabolism. Front Endocrinol (Lausanne) 2023; 14:1259650. [PMID: 37886641 PMCID: PMC10598340 DOI: 10.3389/fendo.2023.1259650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 09/12/2023] [Indexed: 10/28/2023] Open
Abstract
Primary cilia are microtubule-based organelles that are widespread on the cell surface and play a key role in tissue development and homeostasis by sensing and transducing various signaling pathways. The process of intraflagellar transport (IFT), which is propelled by kinesin and dynein motors, plays a crucial role in the formation and functionality of cilia. Abnormalities in the cilia or ciliary transport system often cause a range of clinical conditions collectively known as ciliopathies, which include polydactyly, short ribs, scoliosis, thoracic stenosis and many abnormalities in the bones and cartilage. In this review, we summarize recent findings on the role of primary cilia and ciliary transport systems in bone development, we describe the role of cilia in bone formation, cartilage development and bone resorption, and we summarize advances in the study of primary cilia in fracture healing. In addition, the recent discovery of crosstalk between integrins and primary cilia provides new insights into how primary cilia affect bone.
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Affiliation(s)
- Fenfen Lian
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Hui Li
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Yuwei Ma
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Rui Zhou
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Wei Wu
- School of Athletic Performance, Shanghai University of Sport, Shanghai, China
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23
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Masek M, Bachmann-Gagescu R. Control of protein and lipid composition of photoreceptor outer segments-Implications for retinal disease. Curr Top Dev Biol 2023; 155:165-225. [PMID: 38043951 DOI: 10.1016/bs.ctdb.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Vision is arguably our most important sense, and its loss brings substantial limitations to daily life for affected individuals. Light is perceived in retinal photoreceptors (PRs), which are highly specialized neurons subdivided into several compartments with distinct functions. The outer segments (OSs) of photoreceptors represent highly specialized primary ciliary compartments hosting the phototransduction cascade, which transforms incoming light into a neuronal signal. Retinal disease can result from various pathomechanisms originating in distinct subcompartments of the PR cell, or in the retinal pigment epithelium which supports the PRs. Dysfunction of primary cilia causes human disorders known as "ciliopathies", in which retinal disease is a common feature. This chapter focuses on PR OSs, discussing the mechanisms controlling their complex structure and composition. A sequence of tightly regulated sorting and trafficking events, both upstream of and within this ciliary compartment, ensures the establishment and maintenance of the adequate proteome and lipidome required for signaling in response to light. We discuss in particular our current understanding of the role of ciliopathy proteins involved in multi-protein complexes at the ciliary transition zone (CC2D2A) or BBSome (BBS1) and how their dysfunction causes retinal disease. While the loss of CC2D2A prevents the fusion of vesicles and delivery of the photopigment rhodopsin to the ciliary base, leading to early OS ultrastructural defects, BBS1 deficiency results in precocious accumulation of cholesterol in mutant OSs and decreased visual function preceding morphological changes. These distinct pathomechanisms underscore the central role of ciliary proteins involved in multiple processes controlling OS protein and lipid composition.
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Affiliation(s)
- Markus Masek
- Institute of Medical Genetics, University of Zurich, Zurich, Switzerland; Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Ruxandra Bachmann-Gagescu
- Institute of Medical Genetics, University of Zurich, Zurich, Switzerland; Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland; University Research Priority Program AdaBD, University of Zurich, Zurich, Switzerland.
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24
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Wang B, Liang Z, Tan T, Zhang M, Jiang Y, Shang Y, Gao X, Song S, Wang R, Chen H, Liu J, Li J, Ren Y, Liu P. CRB3 navigates Rab11 trafficking vesicles to promote γTuRC assembly during ciliogenesis. eLife 2023; 12:RP86689. [PMID: 37737843 PMCID: PMC10516600 DOI: 10.7554/elife.86689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023] Open
Abstract
The primary cilium plays important roles in regulating cell differentiation, signal transduction, and tissue organization. Dysfunction of the primary cilium can lead to ciliopathies and cancer. The formation and organization of the primary cilium are highly associated with cell polarity proteins, such as the apical polarity protein CRB3. However, the molecular mechanisms by which CRB3 regulates ciliogenesis and the location of CRB3 remain unknown. Here, we show that CRB3, as a navigator, regulates vesicle trafficking in γ-tubulin ring complex (γTuRC) assembly during ciliogenesis and cilium-related Hh and Wnt signaling pathways in tumorigenesis. Crb3 knockout mice display severe defects of the primary cilium in the mammary ductal lumen and renal tubule, while mammary epithelial-specific Crb3 knockout mice exhibit the promotion of ductal epithelial hyperplasia and tumorigenesis. CRB3 is essential for lumen formation and ciliary assembly in the mammary epithelium. We demonstrate that CRB3 localizes to the basal body and that CRB3 trafficking is mediated by Rab11-positive endosomes. Significantly, CRB3 interacts with Rab11 to navigate GCP6/Rab11 trafficking vesicles to CEP290, resulting in intact γTuRC assembly. In addition, CRB3-depleted cells are unresponsive to the activation of the Hh signaling pathway, while CRB3 regulates the Wnt signaling pathway. Therefore, our studies reveal the molecular mechanisms by which CRB3 recognizes Rab11-positive endosomes to facilitate ciliogenesis and regulates cilium-related signaling pathways in tumorigenesis.
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Affiliation(s)
- Bo Wang
- Center for Translational Medicine, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
| | - Zheyong Liang
- Center for Translational Medicine, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
- Department of Cardiovascular Surgery, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
| | - Tan Tan
- Center for Precision Medicine, Affiliated to the First People’s Hospital of Chenzhou, University of South ChinaChenzhouChina
| | - Miao Zhang
- Center for Translational Medicine, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
| | - Yina Jiang
- Department of Pathology, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
| | - Yangyang Shang
- Center for Translational Medicine, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
| | - Xiaoqian Gao
- Center for Translational Medicine, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
| | - Shaoran Song
- Center for Translational Medicine, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
| | - Ruiqi Wang
- Center for Translational Medicine, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
| | - He Chen
- Center for Translational Medicine, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
| | - Jie Liu
- Center for Translational Medicine, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
| | - Juan Li
- Center for Translational Medicine, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
| | - Yu Ren
- Department of Breast Surgery, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
| | - Peijun Liu
- Center for Translational Medicine, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, the First Affiliated Hospital of Xi’an Jiaotong UniversityShaanxiChina
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25
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Boegholm N, Petriman NA, Loureiro‐López M, Wang J, Vela MIS, Liu B, Kanie T, Ng R, Jackson PK, Andersen JS, Lorentzen E. The IFT81-IFT74 complex acts as an unconventional RabL2 GTPase-activating protein during intraflagellar transport. EMBO J 2023; 42:e111807. [PMID: 37606072 PMCID: PMC10505919 DOI: 10.15252/embj.2022111807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/24/2023] [Accepted: 08/03/2023] [Indexed: 08/23/2023] Open
Abstract
Cilia are important cellular organelles for signaling and motility and are constructed via intraflagellar transport (IFT). RabL2 is a small GTPase that localizes to the basal body of cilia via an interaction with the centriolar protein CEP19 before downstream association with the IFT machinery, which is followed by initiation of IFT. We reconstituted and purified RabL2 with CEP19 or IFT proteins to show that a reconstituted pentameric IFT complex containing IFT81/74 enhances the GTP hydrolysis rate of RabL2. The binding site on IFT81/74 that promotes GTP hydrolysis in RabL2 was mapped to a 70-amino-acid-long coiled-coil region of IFT81/74. We present structural models for RabL2-containing IFT complexes that we validate in vitro and in cellulo and demonstrate that Chlamydomonas IFT81/74 enhances GTP hydrolysis of human RabL2, suggesting an ancient evolutionarily conserved activity. Our results provide an architectural understanding of how RabL2 is incorporated into the IFT complex and a molecular rationale for why RabL2 dissociates from anterograde IFT trains soon after departure from the ciliary base.
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Affiliation(s)
- Niels Boegholm
- Department of Molecular Biology and GeneticsAarhus UniversityAarhus CDenmark
| | - Narcis A Petriman
- Department of Molecular Biology and GeneticsAarhus UniversityAarhus CDenmark
| | - Marta Loureiro‐López
- Department for Biochemistry and Molecular BiologyUniversity of Southern DenmarkOdense MDenmark
| | - Jiaolong Wang
- Department of Molecular Biology and GeneticsAarhus UniversityAarhus CDenmark
| | | | - Beibei Liu
- Department of Cell BiologyUniversity of Oklahoma Health Science CenterOklahomaOKUSA
| | - Tomoharu Kanie
- Department of Cell BiologyUniversity of Oklahoma Health Science CenterOklahomaOKUSA
- Baxter Laboratory, Department of Microbiology & ImmunologyStanford University School of MedicineStanfordCAUSA
| | - Roy Ng
- Baxter Laboratory, Department of Microbiology & ImmunologyStanford University School of MedicineStanfordCAUSA
| | - Peter K Jackson
- Baxter Laboratory, Department of Microbiology & ImmunologyStanford University School of MedicineStanfordCAUSA
- Department of PathologyStanford University School of MedicineStanfordCAUSA
| | - Jens S Andersen
- Department for Biochemistry and Molecular BiologyUniversity of Southern DenmarkOdense MDenmark
| | - Esben Lorentzen
- Department of Molecular Biology and GeneticsAarhus UniversityAarhus CDenmark
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26
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Naslavsky N, Caplan S. Receptor-mediated internalization promotes increased endosome size and number in a RAB4- and RAB5-dependent manner. Eur J Cell Biol 2023; 102:151339. [PMID: 37423034 PMCID: PMC10585956 DOI: 10.1016/j.ejcb.2023.151339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/26/2023] [Accepted: 07/05/2023] [Indexed: 07/11/2023] Open
Abstract
Despite their significance in receptor-mediated internalization and continued signal transduction in cells, early/sorting endosomes (EE/SE) remain incompletely characterized, with many outstanding questions that surround the dynamics of their size and number. While several studies have reported increases in EE/SE size and number resulting from endocytic events, few studies have addressed such dynamics in a methodological and quantitative manner. Herein we apply quantitative fluorescence microscopy to measure the size and number of EE/SE upon internalization of two different ligands: transferrin and epidermal growth factor. Additionally, we used siRNA knock-down to determine the involvement of 5 different endosomal RAB proteins (RAB4, RAB5, RAB8A, RAB10 and RAB11A) in EE/SE dynamics. Our study provides new information on the dynamics of endosomes during endocytosis, an important reference for researchers studying receptor-mediated internalization and endocytic events.
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Affiliation(s)
- Naava Naslavsky
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Steve Caplan
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA.
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27
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Li L, Li J, Yuan L. A direct interaction between CENTLEIN and RABIN8 is required for primary cilium formation. Acta Biochim Biophys Sin (Shanghai) 2023; 55:1434-1444. [PMID: 37475549 PMCID: PMC10520482 DOI: 10.3724/abbs.2023064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 03/23/2023] [Indexed: 04/05/2023] Open
Abstract
Primary cilia are formed in nearly all growth-arrested cells and are essential for mammalian development and tissue homeostasis. Defects in primary cilia result in a range of disorders in humans, named ciliopathies. The spatiotemporal localization of RABIN8 on the pericentrosome is an early step in ciliogenesis. Here, we show that CENTLEIN depletion causes the persistent accumulation of RABIN8 on the pericentrosome and primary cilium loss in hTERT-immortalized retinal pigment epithelial cells and murine embryonic fibroblasts. CENTLEIN interacts with RABIN8 directly. A stretch of a 31-amino acid sequence located in the 200‒230 region of the RABIN8 GEF domain is responsible for its physical interaction with CENTLEIN, while expression of the full-length but not the internal deletion lacking the RABIN8-binding site of CENTLEIN largely rescues the ciliogenesis defect provoked by CENTLEIN depletion. Expression of activated RAB8A partially reverses cilium loss in CENTLEIN-null RPE1 cells, so the functional importance of the CENTLEIN-RABIN8 interaction is defined.
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Affiliation(s)
- Liansheng Li
- />Savaid Medical SchoolUniversity of Chinese Academy of SciencesBeijing101408China
| | - Junlin Li
- />Savaid Medical SchoolUniversity of Chinese Academy of SciencesBeijing101408China
| | - Li Yuan
- />Savaid Medical SchoolUniversity of Chinese Academy of SciencesBeijing101408China
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28
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Hu M, Bodnar B, Zhang Y, Xie F, Li F, Li S, Zhao J, Zhao R, Gedupoori N, Mo Y, Lin L, Li X, Meng W, Yang X, Wang H, Barbe MF, Srinivasan S, Bethea JR, Mo X, Xu H, Hu W. Defective neurite elongation and branching in Nibp/Trappc9 deficient zebrafish and mice. Int J Biol Sci 2023; 19:3226-3248. [PMID: 37416774 PMCID: PMC10321293 DOI: 10.7150/ijbs.78489] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 06/06/2023] [Indexed: 07/08/2023] Open
Abstract
Loss of function in transport protein particles (TRAPP) links a new set of emerging genetic disorders called "TRAPPopathies". One such disorder is NIBP syndrome, characterized by microcephaly and intellectual disability, and caused by mutations of NIBP/TRAPPC9, a crucial and unique member of TRAPPII. To investigate the neural cellular/molecular mechanisms underlying microcephaly, we developed Nibp/Trappc9-deficient animal models using different techniques, including morpholino knockdown and CRISPR/Cas mutation in zebrafish and Cre/LoxP-mediated gene targeting in mice. Nibp/Trappc9 deficiency impaired the stability of the TRAPPII complex at actin filaments and microtubules of neurites and growth cones. This deficiency also impaired elongation and branching of neuronal dendrites and axons, without significant effects on neurite initiation or neural cell number/types in embryonic and adult brains. The positive correlation of TRAPPII stability and neurite elongation/branching suggests a potential role for TRAPPII in regulating neurite morphology. These results provide novel genetic/molecular evidence to define patients with a type of non-syndromic autosomal recessive intellectual disability and highlight the importance of developing therapeutic approaches targeting the TRAPPII complex to cure TRAPPopathies.
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Affiliation(s)
- Min Hu
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Brittany Bodnar
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Yonggang Zhang
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Chengdu 610052, China
| | - Fangxin Xie
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Chengdu 610052, China
- Department of Clinical Laboratory, Xi'an NO. 3 Hospital, Xi'an, Shaanxi, 710018, China
| | - Fang Li
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Siying Li
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Jin Zhao
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Ruotong Zhao
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Naveen Gedupoori
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Yifan Mo
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Lanyi Lin
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Xue Li
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Wentong Meng
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Xiaofeng Yang
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Hong Wang
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Mary F. Barbe
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Shanthi Srinivasan
- Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - John R. Bethea
- Department of Biology, Drexel University, Philadelphia, PA, USA
| | - Xianming Mo
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Hong Xu
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Wenhui Hu
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
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29
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Wilson B, Flett C, Gemperle J, Lawless C, Hartshorn M, Hinde E, Harrison T, Chastney M, Taylor S, Allen J, Norman JC, Zacharchenko T, Caswell PT. Proximity labelling identifies pro-migratory endocytic recycling cargo and machinery of the Rab4 and Rab11 families. J Cell Sci 2023; 136:jcs260468. [PMID: 37232246 PMCID: PMC10323252 DOI: 10.1242/jcs.260468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 05/18/2023] [Indexed: 05/27/2023] Open
Abstract
Endocytic recycling controls the return of internalised cargoes to the plasma membrane to coordinate their positioning, availability and downstream signalling. The Rab4 and Rab11 small GTPase families regulate distinct recycling routes, broadly classified as fast recycling from early endosomes (Rab4) and slow recycling from perinuclear recycling endosomes (Rab11), and both routes handle a broad range of overlapping cargoes to regulate cell behaviour. We adopted a proximity labelling approach, BioID, to identify and compare the protein complexes recruited by Rab4a, Rab11a and Rab25 (a Rab11 family member implicated in cancer aggressiveness), revealing statistically robust protein-protein interaction networks of both new and well-characterised cargoes and trafficking machinery in migratory cancer cells. Gene ontological analysis of these interconnected networks revealed that these endocytic recycling pathways are intrinsically connected to cell motility and cell adhesion. Using a knock-sideways relocalisation approach, we were further able to confirm novel links between Rab11, Rab25 and the ESCPE-1 and retromer multiprotein sorting complexes, and identify new endocytic recycling machinery associated with Rab4, Rab11 and Rab25 that regulates cancer cell migration in the 3D matrix.
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Affiliation(s)
- Beverley Wilson
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Chloe Flett
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Jakub Gemperle
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Craig Lawless
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Matthew Hartshorn
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Eleanor Hinde
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Tess Harrison
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Megan Chastney
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Sarah Taylor
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Jennifer Allen
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Jim C. Norman
- Cancer Research UK Beatson Institute, Glasgow, G61 1BD, UK
- School of Cancer Sciences, University of Glasgow, Glasgow, G61 1QH, UK
| | - Thomas Zacharchenko
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Patrick T. Caswell
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
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30
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Takahashi T, Shirai J, Matsuda M, Nakanaga S, Matsushita S, Wakita K, Hayashishita M, Suzuki R, Noguchi A, Yokota N, Kawahara H. Protein quality control machinery supports primary ciliogenesis by eliminating GDP-bound Rab8-family GTPases. iScience 2023; 26:106652. [PMID: 37182096 PMCID: PMC10173616 DOI: 10.1016/j.isci.2023.106652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 02/27/2023] [Accepted: 04/06/2023] [Indexed: 05/16/2023] Open
Abstract
The small GTPase Rab8 plays a vital role in the vesicular trafficking of cargo proteins from the trans-Golgi network to target membranes. Upon reaching its target destination, Rab8 is released from the vesicular membrane into the cytoplasm via guanosine triphosphate (GTP) hydrolysis. The fate of GDP-bound Rab8 released from the destination membranes, however, has not been investigated adequately. In this study, we found that GDP-bound Rab8 subfamily proteins are targeted for immediate degradation, and the pre-emptive quality control machinery is responsible for eliminating these proteins in a nucleotide-specific manner. We provide evidence that components of this quality control machinery have a critical role in vesicular trafficking events, including the formation of primary cilia, a process regulated by the Rab8 subfamily. These results suggest that the protein degradation machinery plays a critical role in the integrity of membrane trafficking by limiting the excessive accumulation of GDP-bound Rab8 subfamily proteins.
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Affiliation(s)
- Toshiki Takahashi
- Laboratory of Cell Biology and Biochemistry, Department of Biological Sciences, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - Jun Shirai
- Laboratory of Cell Biology and Biochemistry, Department of Biological Sciences, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - Miyo Matsuda
- Laboratory of Cell Biology and Biochemistry, Department of Biological Sciences, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - Sae Nakanaga
- Laboratory of Cell Biology and Biochemistry, Department of Biological Sciences, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - Shin Matsushita
- Laboratory of Cell Biology and Biochemistry, Department of Biological Sciences, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - Kei Wakita
- Laboratory of Cell Biology and Biochemistry, Department of Biological Sciences, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - Mizuki Hayashishita
- Laboratory of Cell Biology and Biochemistry, Department of Biological Sciences, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - Rigel Suzuki
- Laboratory of Cell Biology and Biochemistry, Department of Biological Sciences, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - Aya Noguchi
- Laboratory of Cell Biology and Biochemistry, Department of Biological Sciences, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - Naoto Yokota
- Laboratory of Cell Biology and Biochemistry, Department of Biological Sciences, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - Hiroyuki Kawahara
- Laboratory of Cell Biology and Biochemistry, Department of Biological Sciences, Tokyo Metropolitan University, Tokyo 192-0397, Japan
- Corresponding author
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31
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Aljiboury AA, Ingram E, Krishnan N, Ononiwu F, Pal D, Manikas J, Taveras C, Hall NA, Da Silva J, Freshour J, Hehnly H. Rab8, Rab11, and Rab35 coordinate lumen and cilia formation during zebrafish left-right organizer development. PLoS Genet 2023; 19:e1010765. [PMID: 37186603 PMCID: PMC10212091 DOI: 10.1371/journal.pgen.1010765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 05/25/2023] [Accepted: 04/26/2023] [Indexed: 05/17/2023] Open
Abstract
An essential process during Danio rerio's left-right organizer (Kupffer's Vesicle, KV) formation is the formation of a motile cilium by developing KV cells which extends into the KV lumen. Beating of motile cilia within the KV lumen directs fluid flow to establish the embryo's left-right axis. However, the timepoint at which KV cells start to form cilia and how cilia formation is coordinated with KV lumen formation have not been examined. We identified that nascent KV cells form cilia at their centrosomes at random intracellular positions that then move towards a forming apical membrane containing cystic fibrosis transmembrane conductance regulator (CFTR). Using optogenetic clustering approaches, we found that Rab35 positive membranes recruit Rab11 to modulate CFTR delivery to the apical membrane, which is required for lumen opening, and subsequent cilia extension into the lumen. Once the intracellular cilia reach the CFTR positive apical membrane, Arl13b-positive cilia extend and elongate in a Rab8 dependent manner into the forming lumen once the lumen reaches an area of 300 μm2. These studies demonstrate the need to acutely coordinate Rab8, Rab11, and Rab35-mediated membrane trafficking events to ensure appropriate timing in lumen and cilia formation during KV development.
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Affiliation(s)
- Abrar A. Aljiboury
- Biology Department, Syracuse University, Syracuse, New York, United States of America
- BioInspired Institute, Syracuse University, Syracuse, New York, United States of America
| | - Eric Ingram
- Biology Department, Syracuse University, Syracuse, New York, United States of America
- BioInspired Institute, Syracuse University, Syracuse, New York, United States of America
| | - Nikhila Krishnan
- Biology Department, Syracuse University, Syracuse, New York, United States of America
- BioInspired Institute, Syracuse University, Syracuse, New York, United States of America
| | - Favour Ononiwu
- Biology Department, Syracuse University, Syracuse, New York, United States of America
- BioInspired Institute, Syracuse University, Syracuse, New York, United States of America
| | - Debadrita Pal
- Biology Department, Syracuse University, Syracuse, New York, United States of America
- BioInspired Institute, Syracuse University, Syracuse, New York, United States of America
| | - Julie Manikas
- Biology Department, Syracuse University, Syracuse, New York, United States of America
| | - Christopher Taveras
- Biology Department, Syracuse University, Syracuse, New York, United States of America
| | - Nicole A. Hall
- Biology Department, Syracuse University, Syracuse, New York, United States of America
| | - Jonah Da Silva
- Biology Department, Syracuse University, Syracuse, New York, United States of America
| | - Judy Freshour
- Biology Department, Syracuse University, Syracuse, New York, United States of America
| | - Heidi Hehnly
- Biology Department, Syracuse University, Syracuse, New York, United States of America
- BioInspired Institute, Syracuse University, Syracuse, New York, United States of America
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32
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Zhang J, Jing M, Li P, Sun L, Pi X, Jiang N, Zhu KK, Li H, Li J, Wang M, Zhang J, Liu M, Mu H, Hu Y, Cui X. Knockout of DLIC1 leads to retinal cone degeneration via disturbing Rab8 transport in zebrafish. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166645. [PMID: 36682603 DOI: 10.1016/j.bbadis.2023.166645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/28/2022] [Accepted: 01/13/2023] [Indexed: 01/21/2023]
Abstract
Retinal photoreceptors execute phototransduction functions and require an efficient system for the transport of materials (e.g. proteins and lipids) from inner segments to outer segments. Cytoplasmic dynein 1 is a minus-end-directed microtubule motor and participates in cargo transport in the cytoplasm. However, the roles of dynein 1 motor in photoreceptor cargo transport and retinal development are still ambiguous. In our present study, the light intermediate chain protein DLIC1 (encoded by dync1li1), links activating adaptors to bind diverse cargos in the dynein 1 motor, was depleted using CRISPR-Cas9 technology in zebrafish. The dync1li1-/- zebrafish displayed progressive degeneration of retinal cone photoreceptors, especially blue cones. The retinal rods were not affected in dync1li1-/- zebrafish. Knockout of DLIC1 resulted in abnormal expression and localization of cone opsins in dync1li1-/- retinas. TUNEL staining suggested that apoptosis was induced after aberrant accumulation of cone opsins in photoreceptors of dync1li1-/- zebrafish. Instead of Rab11 transport, Rab8 transport was disturbed in dync1li1-/- retinas. Our data demonstrate that DLIC1 is required for function maintenance and survival of cone photoreceptors, and hint at an essential role of the cytoplasmic dynein 1 motor in photoreceptor cargo transport.
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Affiliation(s)
- Jing Zhang
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Min Jing
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Ping Li
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Luqian Sun
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Xiahui Pi
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Ning Jiang
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Ke-Ke Zhu
- Kaifeng Key Lab of Myopia and Cataract, Kaifeng Central Hospital, Kaifeng, China
| | - Hui Li
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Jing Li
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Mingli Wang
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Jun Zhang
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Mugen Liu
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Hongmei Mu
- Kaifeng Key Lab of Myopia and Cataract, Kaifeng Central Hospital, Kaifeng, China.
| | - Yanzhong Hu
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China; Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - Xiukun Cui
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China.
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33
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Nakashima S, Matsui T, Fukuda M. Vps9d1 regulates tubular endosome formation through specific activation of Rab22A. J Cell Sci 2023; 136:286994. [PMID: 36762583 DOI: 10.1242/jcs.260522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 02/01/2023] [Indexed: 02/11/2023] Open
Abstract
The small GTPase Rab22A is an important regulator of the formation of tubular endosomes, which are one of the types of recycling endosome compartments of the clathrin-independent endocytosis pathway. In order to regulate tubular endosome formation, Rab22A must be activated by a specific guanine-nucleotide-exchange factor (GEF); however, all of the GEFs that have been reported to exhibit Rab22A-GEF activity in vitro also activate Rab5A, an essential regulator of the clathrin-mediated endocytosis pathway, and no Rab22A-specific GEF has ever been identified. Here, we identified Vps9d1, a previously uncharacterized vacuolar protein sorting 9 (VPS9) domain-containing protein, as a novel Rab22A-GEF. The formation of tubular endosome structures was found to be severely impaired in Vps9d1-depleted HeLa cells, but Rab5A localization was unaffected. Expression of a constitutively active Rab22A mutant in Vps9d1-depleted HeLa cells restored tubular endosomes, but expression of a GEF-activity-deficient Vps9d1 mutant did not. Moreover, Vps9d1 depletion altered the distribution of clathrin-independent endocytosed cargos and impaired their recycling. Our findings indicate that Vps9d1 promotes tubular endosome formation by specifically activating Rab22A.
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Affiliation(s)
- Shumpei Nakashima
- Laboratory of Membrane Trafficking Mechanisms, Department of Integrative Life Sciences, Graduate School of Life Sciences, Tohoku University, Aobayama, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Takahide Matsui
- Laboratory of Membrane Trafficking Mechanisms, Department of Integrative Life Sciences, Graduate School of Life Sciences, Tohoku University, Aobayama, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Mitsunori Fukuda
- Laboratory of Membrane Trafficking Mechanisms, Department of Integrative Life Sciences, Graduate School of Life Sciences, Tohoku University, Aobayama, Aoba-ku, Sendai, Miyagi 980-8578, Japan
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34
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Meng T, Chen X, He Z, Huang H, Lin S, Liu K, Bai G, Liu H, Xu M, Zhuang H, Zhang Y, Waqas A, Liu Q, Zhang C, Sun XD, Huang H, Umair M, Yan Y, Feng D. ATP9A deficiency causes ADHD and aberrant endosomal recycling via modulating RAB5 and RAB11 activity. Mol Psychiatry 2023; 28:1219-1231. [PMID: 36604604 PMCID: PMC9816018 DOI: 10.1038/s41380-022-01940-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 12/10/2022] [Accepted: 12/22/2022] [Indexed: 01/07/2023]
Abstract
ATP9A, a lipid flippase of the class II P4-ATPases, is involved in cellular vesicle trafficking. Its homozygous variants are linked to neurodevelopmental disorders in humans. However, its physiological function, the underlying mechanism as well as its pathophysiological relevance in humans and animals are still largely unknown. Here, we report two independent families in which the nonsense mutations c.433C>T/c.658C>T/c.983G>A (p. Arg145*/p. Arg220*/p. Trp328*) in ATP9A (NM_006045.3) cause autosomal recessive hypotonia, intellectual disability (ID) and attention deficit hyperactivity disorder (ADHD). Atp9a null mice show decreased muscle strength, memory deficits and hyperkinetic movement disorder, recapitulating the symptoms observed in patients. Abnormal neurite morphology and impaired synaptic transmission are found in the primary motor cortex and hippocampus of the Atp9a null mice. ATP9A is also required for maintaining neuronal neurite morphology and the viability of neural cells in vitro. It mainly localizes to endosomes and plays a pivotal role in endosomal recycling pathway by modulating small GTPase RAB5 and RAB11 activation. However, ATP9A pathogenic mutants have aberrant subcellular localization and cause abnormal endosomal recycling. These findings provide strong evidence that ATP9A deficiency leads to neurodevelopmental disorders and synaptic dysfunctions in both humans and mice, and establishes novel regulatory roles for ATP9A in RAB5 and RAB11 activity-dependent endosomal recycling pathway and neurological diseases.
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Affiliation(s)
- Tian Meng
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, China.,Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Guangzhou Medical University, 511436, Guangzhou, China.,State Key Laboratory of Respiratory Disease, Guangzhou Medical University, 511436, Guangzhou, China
| | - Xiaoting Chen
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, China
| | - Zhengjie He
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, China.,Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Guangzhou Medical University, 511436, Guangzhou, China
| | - Haofeng Huang
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, China
| | - Shiyin Lin
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, China
| | - Kunru Liu
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, China
| | - Guo Bai
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, China
| | - Hao Liu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Guangzhou Medical University, 511436, Guangzhou, China.,State Key Laboratory of Respiratory Disease, Guangzhou Medical University, 511436, Guangzhou, China.,Qingyuan People's Hospital, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, 511500, China
| | - Mindong Xu
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Haixia Zhuang
- Department of Anesthesiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, China
| | - Yunlong Zhang
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Ahmed Waqas
- Department of Zoology, Division of Science and Technology, University of Education, Lahore, 54000, Pakistan
| | - Qian Liu
- Department of Cerebrovascular Disease Center, Gansu Provincial Hospital, Lanzhou, 730000, China
| | - Chuan Zhang
- Medical Genetics Center, Gansu Provincial Maternity and Child-care Hospital; Gansu Provincial Clinical Research Center for Birth Defects and Rare Diseases, Lanzhou, 730050, China
| | - Xiang-Dong Sun
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Huansen Huang
- Department of Anesthesiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, China
| | - Muhammad Umair
- Medical Genomics Research Department, King Abdullah International Medical Research Center (KAIMRC), King Saud Bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs (MNGH), Riyadh, 11481, Saudi Arabia. .,Department of Life Sciences, School of Science, University of Management and Technology (UMT), Lahore, 22209, Pakistan.
| | - Yousheng Yan
- Prenatal Diagnostic Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, 100026, China.
| | - Du Feng
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, China. .,Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Guangzhou Medical University, 511436, Guangzhou, China. .,State Key Laboratory of Respiratory Disease, Guangzhou Medical University, 511436, Guangzhou, China.
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35
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Wu B, Liu DA, Guan L, Myint PK, Chin L, Dang H, Xu Y, Ren J, Li T, Yu Z, Jabban S, Mills GB, Nukpezah J, Chen YH, Furth EE, Gimotty PA, Wells RG, Weaver VM, Radhakrishnan R, Wang XW, Guo W. Stiff matrix induces exosome secretion to promote tumour growth. Nat Cell Biol 2023; 25:415-424. [PMID: 36797475 PMCID: PMC10351222 DOI: 10.1038/s41556-023-01092-1] [Citation(s) in RCA: 63] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 01/12/2023] [Indexed: 02/18/2023]
Abstract
Tissue fibrosis and extracellular matrix (ECM) stiffening promote tumour progression. The mechanisms by which ECM regulates its contacting cells have been extensively studied. However, how stiffness influences intercellular communications in the microenvironment for tumour progression remains unknown. Here we report that stiff ECM stimulates the release of exosomes from cancer cells. We delineate a molecular pathway that links stiff ECM to activation of Akt, which in turn promotes GTP loading to Rab8 that drives exosome secretion. We further show that exosomes generated from cells grown on stiff ECM effectively promote tumour growth. Proteomic analysis revealed that the Notch signalling pathway is activated in cells treated with exosomes derived from tumour cells grown on stiff ECM, consistent with our gene expression analysis of liver tissues from patients. Our study reveals a molecular mechanism that regulates exosome secretion and provides insight into how mechanical properties of the ECM control the tumour microenvironment for tumour growth.
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Affiliation(s)
- Bin Wu
- Department of Biology, School of Arts & Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Di-Ao Liu
- Department of Biology, School of Arts & Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Lei Guan
- Department of Biology, School of Arts & Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Phyoe Kyawe Myint
- Department of Biology, School of Arts & Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - LiKang Chin
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Hien Dang
- Department of Surgery, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
| | - Ye Xu
- Department of Biology, School of Arts & Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Jinqi Ren
- Department of Biology, School of Arts & Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Ting Li
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Ziyan Yu
- Department of Biology, School of Arts & Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Sophie Jabban
- Department of Biology, School of Arts & Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Gordon B Mills
- Knight Cancer Institute, Oregon Health and Science University, Portland, OR, USA
| | - Jonathan Nukpezah
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, USA
| | - Youhai H Chen
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Emma E Furth
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Phyllis A Gimotty
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, PA, USA
| | - Rebecca G Wells
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, USA
| | - Valerie M Weaver
- Department of Surgery, Center for Bioengineering and Tissue Regeneration, University of California, San Francisco, San Francisco, CA, USA
| | - Ravi Radhakrishnan
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, USA
| | - Xin Wei Wang
- Laboratory of Human Carcinogenesis and Liver Cancer Program, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Wei Guo
- Department of Biology, School of Arts & Sciences, University of Pennsylvania, Philadelphia, PA, USA.
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36
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Zhao H, Khan Z, Westlake CJ. Ciliogenesis membrane dynamics and organization. Semin Cell Dev Biol 2023; 133:20-31. [PMID: 35351373 PMCID: PMC9510604 DOI: 10.1016/j.semcdb.2022.03.021] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/17/2022] [Accepted: 03/18/2022] [Indexed: 12/28/2022]
Abstract
Ciliogenesis is a complex multistep process used to describe assembly of cilia and flagella. These organelles play essential roles in motility and signaling on the surface of cells. Cilia are built at the distal ends of centrioles through the formation of an axoneme that is surrounded by the ciliary membrane. As is the case in the biogenesis of other cellular organelles, regulators of membrane trafficking play essential roles in ciliogenesis, albeit with a unique feature that membranes are organized around microtubule-based structures. Membrane association with the distal end of the centriole is a critical initiating step for ciliogenesis. Studies of this process in different cell types suggests that a singular mechanism may not be utilized to initiate cilium assembly. In this review, we focus on recent insights into cilium biogenesis and the roles membrane trafficking regulators play in described ciliogenesis mechanisms with relevance to human disease.
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Affiliation(s)
- Huijie Zhao
- Center for Cancer Research, NCI Frederick, Laboratory of Cellular and Developmental, Signaling, Frederick, MD 21702, USA
| | - Ziam Khan
- Center for Cancer Research, NCI Frederick, Laboratory of Cellular and Developmental, Signaling, Frederick, MD 21702, USA
| | - Christopher J Westlake
- Center for Cancer Research, NCI Frederick, Laboratory of Cellular and Developmental, Signaling, Frederick, MD 21702, USA.
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37
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Thibodeau MC, Harris NJ, Jenkins ML, Parson MAH, Evans JT, Scott MK, Shaw AL, Pokorný D, Leonard TA, Burke JE. Molecular basis for the recruitment of the Rab effector protein WDR44 by the GTPase Rab11. J Biol Chem 2023; 299:102764. [PMID: 36463963 PMCID: PMC9808001 DOI: 10.1016/j.jbc.2022.102764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 11/22/2022] [Accepted: 11/28/2022] [Indexed: 12/03/2022] Open
Abstract
The formation of complexes between Rab11 and its effectors regulates multiple aspects of membrane trafficking, including recycling and ciliogenesis. WD repeat-containing protein 44 (WDR44) is a structurally uncharacterized Rab11 effector that regulates ciliogenesis by competing with prociliogenesis factors for Rab11 binding. Here, we present a detailed biochemical and biophysical characterization of the WDR44-Rab11 complex and define specific residues mediating binding. Using AlphaFold2 modeling and hydrogen/deuterium exchange mass spectrometry, we generated a molecular model of the Rab11-WDR44 complex. The Rab11-binding domain of WDR44 interacts with switch I, switch II, and the interswitch region of Rab11. Extensive mutagenesis of evolutionarily conserved residues in WDR44 at the interface identified numerous complex-disrupting mutations. Using hydrogen/deuterium exchange mass spectrometry, we found that the dynamics of the WDR44-Rab11 interface are distinct from the Rab11 effector FIP3, with WDR44 forming a more extensive interface with the switch II helix of Rab11 compared with FIP3. The WDR44 interaction was specific to Rab11 over evolutionarily similar Rabs, with mutations defining the molecular basis of Rab11 specificity. Finally, WDR44 can be phosphorylated by Sgk3, with this leading to reorganization of the Rab11-binding surface on WDR44. Overall, our results provide molecular detail on how WDR44 interacts with Rab11 and how Rab11 can form distinct effector complexes that regulate membrane trafficking events.
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Affiliation(s)
- Matthew C Thibodeau
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia, Canada
| | - Noah J Harris
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia, Canada
| | - Meredith L Jenkins
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia, Canada
| | - Matthew A H Parson
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia, Canada
| | - John T Evans
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia, Canada
| | - Mackenzie K Scott
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia, Canada
| | - Alexandria L Shaw
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia, Canada; Department of Biochemistry and Molecular Biology, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Daniel Pokorný
- Max Perutz Labs, Department of Structural and Computational Biology, Vienna, Austria; Department of Medical Biochemistry, Medical University of Vienna, Vienna, Austria
| | - Thomas A Leonard
- Max Perutz Labs, Department of Structural and Computational Biology, Vienna, Austria; Department of Medical Biochemistry, Medical University of Vienna, Vienna, Austria
| | - John E Burke
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia, Canada; Department of Biochemistry and Molecular Biology, The University of British Columbia, Vancouver, British Columbia, Canada.
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38
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Abstract
Vesicles mediate the trafficking of membranes/proteins in the endocytic and secretory pathways. These pathways are regulated by small GTPases of the Rab family. Rab proteins belong to the Ras superfamily of GTPases, which are significantly involved in various intracellular trafficking and signaling processes in the nervous system. Rab11 is known to play a key role especially in recycling many proteins, including receptors important for signal transduction and preservation of functional activities of nerve cells. Rab11 activity is controlled by GEFs (guanine exchange factors) and GAPs (GTPase activating proteins), which regulate its function through modulating GTP/GDP exchange and the intrinsic GTPase activity, respectively. Rab11 is involved in the transport of several growth factor molecules important for the development and repair of neurons. Overexpression of Rab11 has been shown to significantly enhance vesicle trafficking. On the other hand, a reduced expression of Rab11 was observed in several neurodegenerative diseases. Current evidence appears to support the notion that Rab11 and its cognate proteins may be potential targets for therapeutic intervention. In this review, we briefly discuss the function of Rab11 and its related interaction partners in intracellular pathways that may be involved in neurodegenerative processes.
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Affiliation(s)
| | - Jiri Novotny
- Jiri Novotny, Department of Physiology, Faculty of Science, Charles University, Prague, Czech Republic.
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39
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Chen C, Hu J, Ling K. The Role of Primary Cilia-Associated Phosphoinositide Signaling in Development. J Dev Biol 2022; 10:51. [PMID: 36547473 PMCID: PMC9785882 DOI: 10.3390/jdb10040051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/22/2022] [Accepted: 11/24/2022] [Indexed: 12/07/2022] Open
Abstract
Primary cilia are microtube-based organelles that extend from the cell surface and function as biochemical and mechanical extracellular signal sensors. Primary cilia coordinate a series of signaling pathways during development. Cilia dysfunction leads to a pleiotropic group of developmental disorders, termed ciliopathy. Phosphoinositides (PIs), a group of signaling phospholipids, play a crucial role in development and tissue homeostasis by regulating membrane trafficking, cytoskeleton reorganization, and organelle identity. Accumulating evidence implicates the involvement of PI species in ciliary defects and ciliopathies. The abundance and localization of PIs in the cell are tightly regulated by the opposing actions of kinases and phosphatases, some of which are recently discovered in the context of primary cilia. Here, we review several cilium-associated PI kinases and phosphatases, including their localization along cilia, function in regulating the ciliary biology under normal conditions, as well as the connection of their disease-associated mutations with ciliopathies.
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Affiliation(s)
- Chuan Chen
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN 55905, USA
| | - Jinghua Hu
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN 55905, USA
| | - Kun Ling
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA
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40
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Mansour F, Hinze C, Telugu NS, Kresoja J, Shaheed IB, Mosimann C, Diecke S, Schmidt-Ott KM. The centrosomal protein 83 (CEP83) regulates human pluripotent stem cell differentiation toward the kidney lineage. eLife 2022; 11:e80165. [PMID: 36222666 PMCID: PMC9629839 DOI: 10.7554/elife.80165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 10/11/2022] [Indexed: 11/13/2022] Open
Abstract
During embryonic development, the mesoderm undergoes patterning into diverse lineages including axial, paraxial, and lateral plate mesoderm (LPM). Within the LPM, the so-called intermediate mesoderm (IM) forms kidney and urogenital tract progenitor cells, while the remaining LPM forms cardiovascular, hematopoietic, mesothelial, and additional progenitor cells. The signals that regulate these early lineage decisions are incompletely understood. Here, we found that the centrosomal protein 83 (CEP83), a centriolar component necessary for primary cilia formation and mutated in pediatric kidney disease, influences the differentiation of human-induced pluripotent stem cells (hiPSCs) toward IM. We induced inactivating deletions of CEP83 in hiPSCs and applied a 7-day in vitro protocol of IM kidney progenitor differentiation, based on timed application of WNT and FGF agonists. We characterized induced mesodermal cell populations using single-cell and bulk transcriptomics and tested their ability to form kidney structures in subsequent organoid culture. While hiPSCs with homozygous CEP83 inactivation were normal regarding morphology and transcriptome, their induced differentiation into IM progenitor cells was perturbed. Mesodermal cells induced after 7 days of monolayer culture of CEP83-deficient hiPCS exhibited absent or elongated primary cilia, displayed decreased expression of critical IM genes (PAX8, EYA1, HOXB7), and an aberrant induction of LPM markers (e.g. FOXF1, FOXF2, FENDRR, HAND1, HAND2). Upon subsequent organoid culture, wildtype cells differentiated to form kidney tubules and glomerular-like structures, whereas CEP83-deficient cells failed to generate kidney cell types, instead upregulating cardiomyocyte, vascular, and more general LPM progenitor markers. Our data suggest that CEP83 regulates the balance of IM and LPM formation from human pluripotent stem cells, identifying a potential link between centriolar or ciliary function and mesodermal lineage induction.
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Affiliation(s)
- Fatma Mansour
- Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin BerlinBerlinGermany
- Molecular and Translational Kidney Research, Max Delbrück Center for Molecular Medicine in the Helmholtz AssociationBerlinGermany
- Department of Pathology, Faculty of Veterinary Medicine, Cairo UniversityCairoEgypt
| | - Christian Hinze
- Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin BerlinBerlinGermany
- Molecular and Translational Kidney Research, Max Delbrück Center for Molecular Medicine in the Helmholtz AssociationBerlinGermany
- Berlin Institute of HealthBerlinGermany
- Department of Nephrology and Hypertension, Hannover Medical SchoolHannoverGermany
| | - Narasimha Swamy Telugu
- Berlin Institute of HealthBerlinGermany
- Technology Platform Pluripotent Stem Cells, Max Delbrück Center for Molecular Medicine in the Helmholtz AssociationBerlinGermany
| | - Jelena Kresoja
- Department of Pediatrics, Section of Developmental Biology, University of Colorado School of Medicine, Anschutz Medical CampusAuroraUnited States
| | - Iman B Shaheed
- Department of Pathology, Faculty of Veterinary Medicine, Cairo UniversityCairoEgypt
| | - Christian Mosimann
- Department of Pediatrics, Section of Developmental Biology, University of Colorado School of Medicine, Anschutz Medical CampusAuroraUnited States
| | - Sebastian Diecke
- Berlin Institute of HealthBerlinGermany
- Technology Platform Pluripotent Stem Cells, Max Delbrück Center for Molecular Medicine in the Helmholtz AssociationBerlinGermany
| | - Kai M Schmidt-Ott
- Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin BerlinBerlinGermany
- Molecular and Translational Kidney Research, Max Delbrück Center for Molecular Medicine in the Helmholtz AssociationBerlinGermany
- Department of Nephrology and Hypertension, Hannover Medical SchoolHannoverGermany
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Finetti F, Onnis A, Baldari CT. IFT20: An Eclectic Regulator of Cellular Processes beyond Intraflagellar Transport. Int J Mol Sci 2022; 23:ijms232012147. [PMID: 36292997 PMCID: PMC9603483 DOI: 10.3390/ijms232012147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 10/06/2022] [Accepted: 10/10/2022] [Indexed: 11/16/2022] Open
Abstract
Initially discovered as the smallest component of the intraflagellar transport (IFT) system, the IFT20 protein has been found to be implicated in several unconventional mechanisms beyond its essential role in the assembly and maintenance of the primary cilium. IFT20 is now considered a key player not only in ciliogenesis but also in vesicular trafficking of membrane receptors and signaling proteins. Moreover, its ability to associate with a wide array of interacting partners in a cell-type specific manner has expanded the function of IFT20 to the regulation of intracellular degradative and secretory pathways. In this review, we will present an overview of the multifaceted role of IFT20 in both ciliated and non-ciliated cells.
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An anti-influenza combined therapy assessed by single cell RNA-sequencing. Commun Biol 2022; 5:1075. [PMID: 36216966 PMCID: PMC9549038 DOI: 10.1038/s42003-022-04013-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 09/20/2022] [Indexed: 11/08/2022] Open
Abstract
Influenza makes millions of people ill every year, placing a large burden on the healthcare system and the economy. To develop a treatment against influenza, we combined virucidal sialylated cyclodextrins with interferon lambda and demonstrated, in human airway epithelia, that the two compounds inhibit the replication of a clinical H1N1 strain more efficiently when administered together rather than alone. We investigated the mechanism of action of the combined treatment by single cell RNA-sequencing analysis and found that both the single and combined treatments impair viral replication to different extents across distinct epithelial cell types. We showed that each cell type comprises multiple sub-types, whose proportions are altered by H1N1 infection, and assessed the ability of the treatments to restore them. To the best of our knowledge this is the first study investigating the effectiveness of an antiviral therapy against influenza virus by single cell transcriptomic studies. When combined with interferon lambda, virucidal sialylated cyclodextrins inhibit the replication of a clinical H1N1 influenza strain in ex vivo human airway epithelia more efficiently than when delivered alone.
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Chen M, Zhang Y, Jiang K, Wang W, Feng H, Zhen R, Moo C, Zhang Z, Shi J, Chen C. Grab regulates transferrin receptor recycling and iron uptake in developing erythroblasts. Blood 2022; 140:1145-1155. [PMID: 35820059 DOI: 10.1182/blood.2021015189] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 06/25/2022] [Indexed: 11/20/2022] Open
Abstract
Developing erythroblasts acquire massive amounts of iron through the transferrin (Tf) cycle, which involves endocytosis, sorting, and recycling of the Tf-Tf receptor (Tfrc) complex. Previous studies on the hemoglobin-deficit (hbd) mouse have shown that the exocyst complex is indispensable for the Tfrc recycling; however, the precise mechanism underlying the efficient exocytosis and recycling of Tfrc in erythroblasts remains unclear. Here, we identify the guanine nucleotide exchange factor Grab as a critical regulator of the Tf cycle and iron metabolism during erythropoiesis. Grab is highly expressed in differentiating erythroblasts. Loss of Grab diminishes the Tfrc recycling and iron uptake, leading to hemoglobinization defects in mouse primary erythroblasts, mammalian erythroleukemia cells, and zebrafish embryos. These defects can be alleviated by supplementing iron together with hinokitiol, a small-molecule natural compound that can mediate iron transport independent of the Tf cycle. Mechanistically, Grab regulates the exocytosis of Tfrc-associated vesicles by activating the GTPase Rab8, which subsequently promotes the recruitment of the exocyst complex and vesicle exocytosis. Our results reveal a critical role for Grab in regulating the Tf cycle and provide new insights into iron homeostasis and erythropoiesis.
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Affiliation(s)
- Mengying Chen
- Ministry of Education Key Laboratory of Biosystems Homeostasis and Protection, Institute of Cell and Developmental Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Yuhan Zhang
- Ministry of Education Key Laboratory of Biosystems Homeostasis and Protection, Institute of Cell and Developmental Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Kailun Jiang
- Ministry of Education Key Laboratory of Biosystems Homeostasis and Protection, Institute of Cell and Developmental Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Weixi Wang
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, China
| | - He Feng
- Ministry of Education Key Laboratory of Biosystems Homeostasis and Protection, Institute of Cell and Developmental Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Ru Zhen
- Ministry of Education Key Laboratory of Biosystems Homeostasis and Protection, Institute of Cell and Developmental Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Chingyee Moo
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, China
| | - Zhuonan Zhang
- Ministry of Education Key Laboratory of Biosystems Homeostasis and Protection, Institute of Cell and Developmental Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Jiahai Shi
- Synthetic Biology Translational Research Programs, Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; and
| | - Caiyong Chen
- Ministry of Education Key Laboratory of Biosystems Homeostasis and Protection, Institute of Cell and Developmental Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
- Cancer Center, Zhejiang University, Hangzhou, China
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Kobayashi T, Ikeda T, Ota R, Yasukawa T, Itoh H. Atypical small GTPase RABL3 interacts with RAB11 to regulate early ciliogenesis in human cells. J Cell Sci 2022; 135:276511. [PMID: 36052645 DOI: 10.1242/jcs.260021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 08/18/2022] [Indexed: 11/20/2022] Open
Abstract
Primary cilia are near-ubiquitously assembled on cells in the human body and are broadly associated with genetic diseases and cancers. In the early stage of ciliogenesis, the ciliary vesicle (CV) is formed on the mother centriole, which nucleates the primary cilium. However, the regulatory mechanisms underlying CV formation have not yet been fully elucidated. Here, we found that the atypical small GTPase RAB-Like 3 (RABL3) is necessary to assemble primary cilia in human cells. RABL3 directly interacts with RAB11, which is involved in CV formation. RABL3 localizes around the centrosome during early ciliogenesis, reminiscent of RAB11 dynamics. Furthermore, RABL3 positively controls the CV formation like RAB11. These findings suggest that RABL3 plays an important role, in cooperation with RAB11, in CV formation during early ciliogenesis.
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Affiliation(s)
- Tetsuo Kobayashi
- Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Tatsuya Ikeda
- Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Reo Ota
- Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Takafumi Yasukawa
- Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Hiroshi Itoh
- Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
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Le Borgne P, Greibill L, Laporte MH, Lemullois M, Bouhouche K, Temagoult M, Rosnet O, Le Guennec M, Lignières L, Chevreux G, Koll F, Hamel V, Guichard P, Tassin AM. The evolutionary conserved proteins CEP90, FOPNL, and OFD1 recruit centriolar distal appendage proteins to initiate their assembly. PLoS Biol 2022; 20:e3001782. [PMID: 36070319 PMCID: PMC9484695 DOI: 10.1371/journal.pbio.3001782] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 09/19/2022] [Accepted: 08/03/2022] [Indexed: 12/27/2022] Open
Abstract
In metazoa, cilia assembly is a cellular process that starts with centriole to basal body maturation, migration to the cell surface, and docking to the plasma membrane. Basal body docking involves the interaction of both the distal end of the basal body and the transition fibers/distal appendages, with the plasma membrane. Mutations in numerous genes involved in basal body docking and transition zone assembly are associated with the most severe ciliopathies, highlighting the importance of these events in cilium biogenesis. In this context, the ciliate Paramecium has been widely used as a model system to study basal body and cilia assembly. However, despite the evolutionary conservation of cilia assembly events across phyla, whether the same molecular players are functionally conserved, is not fully known. Here, we demonstrated that CEP90, FOPNL, and OFD1 are evolutionary conserved proteins crucial for ciliogenesis. Using ultrastructure expansion microscopy, we unveiled that these proteins localize at the distal end of both centrioles/basal bodies in Paramecium and mammalian cells. Moreover, we found that these proteins are recruited early during centriole duplication on the external surface of the procentriole. Functional analysis performed both in Paramecium and mammalian cells demonstrate the requirement of these proteins for distal appendage assembly and basal body docking. Finally, we show that mammalian centrioles require another component, Moonraker (MNR), to recruit OFD1, FOPNL, and CEP90, which will then recruit the distal appendage proteins CEP83, CEP89, and CEP164. Altogether, we propose that this OFD1, FOPNL, and CEP90 functional module is required to determine in mammalian cells the future position of distal appendage proteins. CEP90, FOPNL and OFD1 form an evolutionary conserved module which promotes the assembly of centriolar distal appendages. This study uses ultrastructure expansion microscopy to reveal the recruitment of this module on early-born procentrioles to in turn recruit centriolar distal appendage proteins, proposing that this dictates the future location of distal appendages.
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Affiliation(s)
- Pierrick Le Borgne
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, France
| | - Logan Greibill
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, France
| | - Marine Hélène Laporte
- University of Geneva, Section of Biology, Department of Molecular and Cellular Biology, Geneva, Switzerland
| | - Michel Lemullois
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, France
| | - Khaled Bouhouche
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, France
| | - Mebarek Temagoult
- Imagerie-Gif Light facility, Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, France
| | - Olivier Rosnet
- Centre de Recherche en Cancérologie de Marseille (CRCM), Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, Marseille, France
| | - Maeva Le Guennec
- University of Geneva, Section of Biology, Department of Molecular and Cellular Biology, Geneva, Switzerland
| | - Laurent Lignières
- ProteoSeine@IJM, Université de Paris/CNRS, Institut Jacques Monod, Paris, France
| | - Guillaume Chevreux
- ProteoSeine@IJM, Université de Paris/CNRS, Institut Jacques Monod, Paris, France
| | - France Koll
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, France
| | - Virginie Hamel
- University of Geneva, Section of Biology, Department of Molecular and Cellular Biology, Geneva, Switzerland
| | - Paul Guichard
- University of Geneva, Section of Biology, Department of Molecular and Cellular Biology, Geneva, Switzerland
| | - Anne-Marie Tassin
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, France
- * E-mail:
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46
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Jang DG, Kwon KY, Kweon YC, Kim BG, Myung K, Lee HS, Young Park C, Kwon T, Park TJ. GJA1 depletion causes ciliary defects by affecting Rab11 trafficking to the ciliary base. eLife 2022; 11:81016. [PMID: 36004726 PMCID: PMC9448326 DOI: 10.7554/elife.81016] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 08/11/2022] [Indexed: 11/13/2022] Open
Abstract
The gap junction complex functions as a transport channel across the membrane. Among gap junction subunits, gap junction protein α1 (GJA1) is the most commonly expressed subunit. A recent study showed that GJA1 is necessary for the maintenance of motile cilia; however, the molecular mechanism and function of GJA1 in ciliogenesis remain unknown. Here, we examined the functions of GJA1 during ciliogenesis in human retinal pigment epithelium-1 and Xenopus laevis embryonic multiciliated-cells. GJA1 localizes to the motile ciliary axonemes or pericentriolar regions beneath the primary cilium. GJA1 depletion caused malformation of both the primary cilium and motile cilia. Further study revealed that GJA1 depletion affected several ciliary proteins such as BBS4, CP110, and Rab11 in the pericentriolar region and basal body. Interestingly, CP110 removal from the mother centriole was significantly reduced by GJA1 depletion. Importantly, Rab11, a key regulator during ciliogenesis, was immunoprecipitated with GJA1, and GJA1 knockdown caused the mislocalization of Rab11. These findings suggest that GJA1 regulates ciliogenesis by interacting with the Rab11-Rab8 ciliary trafficking pathway.
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Affiliation(s)
- Dong Gil Jang
- Department of Biological Sciences, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
| | - Keun Yeong Kwon
- Department of Biological Sciences, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
| | - Yeong Cheon Kweon
- Department of Biological Sciences, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
| | - Byung-Gyu Kim
- Center for Genomic Integrity, Institute for Basic Science, Ulsan, Republic of Korea
| | - Kyungjae Myung
- Center for Genomic Integrity, Institute for Basic Science, Ulsan, Republic of Korea
| | - Hyun-Shik Lee
- School of Life Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Chan Young Park
- Department of Biological Sciences, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
| | - Taejoon Kwon
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
| | - Tae Joo Park
- Department of Biological Sciences, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
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47
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Ge R, Cao M, Chen M, Liu M, Xie S. Cytoskeletal networks in primary cilia: Current knowledge and perspectives. J Cell Physiol 2022; 237:3975-3983. [PMID: 36000703 DOI: 10.1002/jcp.30865] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 07/08/2022] [Accepted: 08/11/2022] [Indexed: 11/12/2022]
Abstract
Primary cilia, microtubule-based protrusions present on the surface of most mammalian cells, function as sensory organelles that monitor extracellular signals and transduce them into intracellular biochemical responses. There is renewed research interest in primary cilia due to their essential roles in development, tissue homeostasis, and human diseases. Primary cilia dysfunction causes a large spectrum of human diseases, collectively known as ciliopathies. Despite significant advances in our understanding of primary cilia, there are still no effective agents for treating ciliopathies. Primary ciliogenesis is a highly ordered process involving membrane trafficking, basal body maturation, vesicle docking and fusion, transition zone assembly, and axoneme extension, in which actin and microtubule networks play critical and multiple roles. Actin and microtubule network architecture, isotropy, and dynamics are tightly controlled by cytoskeleton-associated proteins, a growing number of which are now recognized as responsible for cilium formation and maintenance. Here we summarize the roles of actin and microtubules and their associated proteins in primary ciliogenesis and maintenance. In doing so, we highlight that targeting cytoskeleton-associated proteins may be a promising therapeutic strategy for the treatment of ciliopathies.
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Affiliation(s)
- Ruixin Ge
- Department of Cell Biology, College of Life Sciences, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Institute of Biomedical Sciences, Shandong Normal University, Jinan, China
| | - Minghui Cao
- Department of Cell Biology, College of Life Sciences, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Institute of Biomedical Sciences, Shandong Normal University, Jinan, China
| | - Miao Chen
- Department of Bioscience, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Min Liu
- Department of Cell Biology, College of Life Sciences, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Institute of Biomedical Sciences, Shandong Normal University, Jinan, China
| | - Songbo Xie
- Department of Cell Biology, College of Life Sciences, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Institute of Biomedical Sciences, Shandong Normal University, Jinan, China.,Department of Bioscience, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
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48
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Krishnan N, Swoger M, Rathbun LI, Fioramonti PJ, Freshour J, Bates M, Patteson AE, Hehnly H. Rab11 endosomes and Pericentrin coordinate centrosome movement during pre-abscission in vivo. Life Sci Alliance 2022; 5:e202201362. [PMID: 35304423 PMCID: PMC8933627 DOI: 10.26508/lsa.202201362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/02/2022] [Accepted: 03/03/2022] [Indexed: 11/24/2022] Open
Abstract
The last stage of cell division involves two daughter cells remaining interconnected by a cytokinetic bridge that is cleaved during abscission. Conserved between the zebrafish embryo and human cells, we found that the oldest centrosome moves in a Rab11-dependent manner towards the cytokinetic bridge sometimes followed by the youngest. Rab11-endosomes are organized in a Rab11-GTP dependent manner at the mother centriole during pre-abscission, with Rab11 endosomes at the oldest centrosome being more mobile compared with the youngest. The GTPase activity of Rab11 is necessary for the centrosome protein, Pericentrin, to be enriched at the centrosome. Reduction in Pericentrin expression or optogenetic disruption of Rab11-endosome function inhibited both centrosome movement towards the cytokinetic bridge and abscission, resulting in daughter cells prone to being binucleated and/or having supernumerary centrosomes. These studies suggest that Rab11-endosomes contribute to centrosome function during pre-abscission by regulating Pericentrin organization resulting in appropriate centrosome movement towards the cytokinetic bridge and subsequent abscission.
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Affiliation(s)
- Nikhila Krishnan
- Department of Biology, Syracuse University, Syracuse, NY, USA
- BioInspired Institute, Syracuse University, Syracuse, NY, USA
| | - Maxx Swoger
- Department of Physics, Syracuse University, Physics Building, Syracuse, NY, USA
- BioInspired Institute, Syracuse University, Syracuse, NY, USA
| | - Lindsay I Rathbun
- Department of Biology, Syracuse University, Syracuse, NY, USA
- BioInspired Institute, Syracuse University, Syracuse, NY, USA
| | - Peter J Fioramonti
- Department of Biology, Syracuse University, Syracuse, NY, USA
- BioInspired Institute, Syracuse University, Syracuse, NY, USA
| | - Judy Freshour
- Department of Biology, Syracuse University, Syracuse, NY, USA
- BioInspired Institute, Syracuse University, Syracuse, NY, USA
| | - Michael Bates
- Department of Biology, Syracuse University, Syracuse, NY, USA
- BioInspired Institute, Syracuse University, Syracuse, NY, USA
| | - Alison E Patteson
- Department of Physics, Syracuse University, Physics Building, Syracuse, NY, USA
- BioInspired Institute, Syracuse University, Syracuse, NY, USA
| | - Heidi Hehnly
- Department of Biology, Syracuse University, Syracuse, NY, USA
- BioInspired Institute, Syracuse University, Syracuse, NY, USA
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Xie S, Dierlam C, Smith E, Duran R, Williams A, Davis A, Mathew D, Naslavsky N, Iyer J, Caplan S. The retromer complex regulates C. elegans development and mammalian ciliogenesis. J Cell Sci 2022; 135:jcs259396. [PMID: 35510502 PMCID: PMC9189432 DOI: 10.1242/jcs.259396] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 04/11/2022] [Indexed: 11/20/2022] Open
Abstract
The mammalian retromer consists of subunits VPS26 (either VPS26A or VPS26B), VPS29 and VPS35, and a loosely associated sorting nexin (SNX) heterodimer or a variety of other SNX proteins. Despite involvement in yeast and mammalian cell trafficking, the role of retromer in development is poorly understood, and its impact on primary ciliogenesis remains unknown. Using CRISPR/Cas9 editing, we demonstrate that vps-26-knockout worms have reduced brood sizes, impaired vulval development and decreased body length, all of which have been linked to ciliogenesis defects. Although preliminary studies did not identify worm ciliary defects, and impaired development limited additional ciliogenesis studies, we turned to mammalian cells to investigate the role of retromer in ciliogenesis. VPS35 localized to the primary cilium of mammalian cells, and depletion of VPS26, VPS35, VPS29, SNX1, SNX2, SNX5 or SNX27 led to decreased ciliogenesis. Retromer also coimmunoprecipitated with the centriolar protein, CP110 (also known as CCP110), and was required for its removal from the mother centriole. Herein, we characterize new roles for retromer in C. elegans development and in the regulation of ciliogenesis in mammalian cells, suggesting a novel role for retromer in CP110 removal from the mother centriole.
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Affiliation(s)
- Shuwei Xie
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Carter Dierlam
- Department of Chemistry and Biochemistry, University of Tulsa, Tulsa, OK 74104, USA
| | - Ellie Smith
- Department of Chemistry and Biochemistry, University of Tulsa, Tulsa, OK 74104, USA
| | - Ramon Duran
- Department of Chemistry and Biochemistry, University of Tulsa, Tulsa, OK 74104, USA
| | - Allana Williams
- Department of Chemistry and Biochemistry, University of Tulsa, Tulsa, OK 74104, USA
| | - Angelina Davis
- School of Science and Mathematics, Tulsa Community College, Tulsa, OK 74115, USA
| | - Danita Mathew
- Department of Chemistry and Biochemistry, University of Tulsa, Tulsa, OK 74104, USA
| | - Naava Naslavsky
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Jyoti Iyer
- Department of Chemistry and Biochemistry, University of Tulsa, Tulsa, OK 74104, USA
| | - Steve Caplan
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
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Jones T, Naslavsky N, Caplan S. Differential requirements for the Eps15 homology Domain Proteins EHD4 and EHD2 in the regulation of mammalian ciliogenesis. Traffic 2022; 23:360-373. [PMID: 35510564 PMCID: PMC9324998 DOI: 10.1111/tra.12845] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 04/14/2022] [Accepted: 05/02/2022] [Indexed: 11/28/2022]
Abstract
The endocytic protein EHD1 controls primary ciliogenesis by facilitating fusion of the ciliary vesicle and by removal of CP110 from the mother centriole. EHD3, the closest EHD1 paralog, has a similar regulatory role, but initial evidence suggested that the other two more distal paralogs, EHD2 and EHD4 may be dispensable for ciliogenesis. Herein, we define a novel role for EHD4, but not EHD2, in regulating primary ciliogenesis. To better understand the mechanisms and differential functions of the EHD proteins in ciliogenesis, we first demonstrated a requirement for EHD1 ATP‐binding to promote ciliogenesis. We then identified two sequence motifs that are entirely conserved between EH domains of EHD1, EHD3 and EHD4, but display key amino acid differences within the EHD2 EH domain. Substitution of either P446 or E470 in EHD1 with the aligning S451 or W475 residues from EHD2 was sufficient to prevent rescue of ciliogenesis in EHD1‐depleted cells upon reintroduction of EHD1. Overall, our data enhance the current understanding of the EHD paralogs in ciliogenesis, demonstrate a need for ATP‐binding and identify conserved sequences in the EH domains of EHD1, EHD3 and EHD4 that regulate EHD1 binding to proteins and its ability to rescue ciliogenesis in EHD1‐depleted cells.
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Affiliation(s)
- Tyler Jones
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, NE
| | - Naava Naslavsky
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, NE
| | - Steve Caplan
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, NE.,Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE
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