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Laflamme N, Triassi V, Martineau L, Toffa DH, Létourneau-Guillon L, Laplante A, Cossette P, Samarut É, Tétreault M, Nguyen DK. X-Linked Bilateral Polymicrogyria With Epilepsy and Intellectual Disability Associated With a Novel KIF4A Variant. Am J Med Genet A 2024:e63860. [PMID: 39268972 DOI: 10.1002/ajmg.a.63860] [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: 08/19/2022] [Revised: 07/19/2024] [Accepted: 08/18/2024] [Indexed: 09/15/2024]
Abstract
We studied three brothers and a maternal half-brother featuring global developmental delay, mild to moderate intellectual disability, epilepsy, microcephaly, and strabismus. All had bilateral perisylvian and perirolandic polymicrogyria, while some also had malformations of the hippocampus (malrotation and dysplasia), cerebellum (heterotopias and asymmetric aplasia), corpus callosum dysgenesis, and brainstem asymmetric dysplasia. Exome sequencing showed that all four patients had a novel variant (c.1597C>T:p.Leu533Phe) on the KIF4A gene on chromosome X. We discuss how this variant is possibly pathogenic and could explain the reported phenotype.
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Affiliation(s)
- Naomi Laflamme
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
| | - Valérie Triassi
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
- Bioinformatics Program, Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, Quebec, Canada
| | - Laurence Martineau
- Neurology Division, Centre Hospitalier Universitaire de Québec, Université Laval, Quebec City, Quebec, Canada
| | - Dènahin Hinnoutondji Toffa
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
- Department of Neuroscience, Université de Montréal, Montreal, Quebec, Canada
| | | | - Annie Laplante
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
| | - Patrick Cossette
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
- Department of Neuroscience, Université de Montréal, Montreal, Quebec, Canada
- Division of Radiology, Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, Quebec, Canada
| | - Éric Samarut
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
- Department of Neuroscience, Université de Montréal, Montreal, Quebec, Canada
| | - Martine Tétreault
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
- Department of Neuroscience, Université de Montréal, Montreal, Quebec, Canada
| | - Dang Khoa Nguyen
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
- Department of Neuroscience, Université de Montréal, Montreal, Quebec, Canada
- Neurology Division, Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, Quebec, Canada
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2
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Mellis IA, Melzer ME, Bodkin N, Goyal Y. Prevalence of and gene regulatory constraints on transcriptional adaptation in single cells. Genome Biol 2024; 25:217. [PMID: 39135102 PMCID: PMC11320884 DOI: 10.1186/s13059-024-03351-2] [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: 12/13/2023] [Accepted: 07/25/2024] [Indexed: 08/15/2024] Open
Abstract
BACKGROUND Cells and tissues have a remarkable ability to adapt to genetic perturbations via a variety of molecular mechanisms. Nonsense-induced transcriptional compensation, a form of transcriptional adaptation, has recently emerged as one such mechanism, in which nonsense mutations in a gene trigger upregulation of related genes, possibly conferring robustness at cellular and organismal levels. However, beyond a handful of developmental contexts and curated sets of genes, no comprehensive genome-wide investigation of this behavior has been undertaken for mammalian cell types and conditions. How the regulatory-level effects of inherently stochastic compensatory gene networks contribute to phenotypic penetrance in single cells remains unclear. RESULTS We analyze existing bulk and single-cell transcriptomic datasets to uncover the prevalence of transcriptional adaptation in mammalian systems across diverse contexts and cell types. We perform regulon gene expression analyses of transcription factor target sets in both bulk and pooled single-cell genetic perturbation datasets. Our results reveal greater robustness in expression of regulons of transcription factors exhibiting transcriptional adaptation compared to those of transcription factors that do not. Stochastic mathematical modeling of minimal compensatory gene networks qualitatively recapitulates several aspects of transcriptional adaptation, including paralog upregulation and robustness to mutation. Combined with machine learning analysis of network features of interest, our framework offers potential explanations for which regulatory steps are most important for transcriptional adaptation. CONCLUSIONS Our integrative approach identifies several putative hits-genes demonstrating possible transcriptional adaptation-to follow-up on experimentally and provides a formal quantitative framework to test and refine models of transcriptional adaptation.
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Affiliation(s)
- Ian A Mellis
- Department of Pathology and Cell Biology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA.
- Aaron Diamond AIDS Research Center, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA.
| | - Madeline E Melzer
- Department of Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
- Center for Synthetic Biology, Northwestern University, Chicago, IL, USA
- Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Nicholas Bodkin
- Department of Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
- Center for Synthetic Biology, Northwestern University, Chicago, IL, USA
- Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Yogesh Goyal
- Department of Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
- Center for Synthetic Biology, Northwestern University, Chicago, IL, USA.
- Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
- CZ Biohub Chicago, LLC, Chicago, IL, USA.
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3
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Bouchenafa R, Johnson de Sousa Brito FM, Piróg KA. Involvement of kinesins in skeletal dysplasia: a review. Am J Physiol Cell Physiol 2024; 327:C278-C290. [PMID: 38646780 PMCID: PMC11293425 DOI: 10.1152/ajpcell.00613.2023] [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: 11/12/2023] [Revised: 04/06/2024] [Accepted: 04/08/2024] [Indexed: 04/23/2024]
Abstract
Skeletal dysplasias are group of rare genetic diseases resulting from mutations in genes encoding structural proteins of the cartilage extracellular matrix (ECM), signaling molecules, transcription factors, epigenetic modifiers, and several intracellular proteins. Cell division, organelle maintenance, and intracellular transport are all orchestrated by the cytoskeleton-associated proteins, and intracellular processes affected through microtubule-associated movement are important for the function of skeletal cells. Among microtubule-associated motor proteins, kinesins in particular have been shown to play a key role in cell cycle dynamics, including chromosome segregation, mitotic spindle formation, and ciliogenesis, in addition to cargo trafficking, receptor recycling, and endocytosis. Recent studies highlight the fundamental role of kinesins in embryonic development and morphogenesis and have shown that mutations in kinesin genes lead to several skeletal dysplasias. However, many questions concerning the specific functions of kinesins and their adaptor molecules as well as specific molecular mechanisms in which the kinesin proteins are involved during skeletal development remain unanswered. Here we present a review of the skeletal dysplasias resulting from defects in kinesins and discuss the involvement of kinesin proteins in the molecular mechanisms that are active during skeletal development.
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Affiliation(s)
- Roufaida Bouchenafa
- Skeletal Research Group, Biosciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | | | - Katarzyna Anna Piróg
- Skeletal Research Group, Biosciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
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4
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Jia N, Zhang B, Huo Z, Qin J, Ji Q, Geng Y. Binding patterns of inhibitors to different pockets of kinesin Eg5. Arch Biochem Biophys 2024; 756:109998. [PMID: 38641233 DOI: 10.1016/j.abb.2024.109998] [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: 12/20/2023] [Revised: 03/19/2024] [Accepted: 04/12/2024] [Indexed: 04/21/2024]
Abstract
The kinesin-5 family member, Eg5, plays very important role in the mitosis. As a mitotic protein, Eg5 is the target of various mitotic inhibitors. There are two targeting pockets in the motor domain of Eg5, which locates in the α2/L5/α3 region and the α4/α6 region respectively. We investigated the interactions between the different inhibitors and the two binding pockets of Eg5 by using all-atom molecular dynamics method. Combined the conformational analysis with the free-energy calculation, the binding patterns of inhibitors to the two binding pockets are shown. The α2/L5/α3 pocket can be divided into 4 regions. The structures and binding conformations of inhibitors in region 1 and 2 are highly conserved. The shape of α4/α6 pocket is alterable. The space of this pocket in ADP-binding state of Eg5 is larger than that in ADP·Pi-binding state due to the limitation of a hydrogen bond formed in the ADP·Pi-binding state. The results of this investigation provide the structural basis of the inhibitor-Eg5 interaction and offer a reference for the Eg5-targeted drug design.
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Affiliation(s)
- Ning Jia
- School of Science, Hebei University of Technology, Tianjin, China; Institute of Biophysics, Hebei University of Technology, Tianjin, China
| | - Bingbing Zhang
- School of Health Sciences & Biomedical Engineering, Hebei University of Technology, Tianjin, China; Institute of Biophysics, Hebei University of Technology, Tianjin, China
| | - Ziling Huo
- School of Health Sciences & Biomedical Engineering, Hebei University of Technology, Tianjin, China; Institute of Biophysics, Hebei University of Technology, Tianjin, China
| | - Jingyu Qin
- College of Electrical and Information Engineering, Quzhou University, Quzhou, China
| | - Qing Ji
- School of Science, Hebei University of Technology, Tianjin, China; Institute of Biophysics, Hebei University of Technology, Tianjin, China
| | - Yizhao Geng
- School of Science, Hebei University of Technology, Tianjin, China; Institute of Biophysics, Hebei University of Technology, Tianjin, China.
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Zhu H, Xu J, Yu K, Wu J, Xu H, Wang S, Wen T. Genome-wide identification of the key kinesin genes during fiber and boll development in upland cotton (Gossypium hirsutum L.). Mol Genet Genomics 2024; 299:38. [PMID: 38517563 DOI: 10.1007/s00438-024-02093-x] [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: 08/07/2021] [Accepted: 10/11/2023] [Indexed: 03/24/2024]
Abstract
Kinesin is a kind of motor protein, which interacts with microtubule filaments and regulates cellulose synthesis. Cotton fiber is a natural model for studying the cellular development and cellulose synthesis. Therefore, a systematic research of kinesin gene family in cotton (Gossypium spp.) will be beneficial for both understanding the function of kinesin protein and assisting the fiber improvement. Here, we aimed to identify the key kinesin genes present in cotton by combining genome-wide expression profile data, association mapping, and public quantitative trait loci (QTLs) in upland cotton (G. hirsutum L.). Results showed that 159 kinesin genes, including 15 genes of the kinesin-13 gene subfamily, were identified in upland cotton; of which 157 kinesin genes can be traced back to the diploid ancestors, G. raimondii and G. arboreum. Using a combined analysis of public QTLs and genome-wide expression profile information, there were 29 QTLs co-localized together with 28 kinesin genes in upland cotton, including 10 kinesin-13 subfamily genes. Genome-wide expression profile data indicated that, among the 28 co-localized genes, seven kinesin genes were predominantly expressed in fibers or ovules. By association mapping analysis, 30 kinesin genes were significantly associated with three fiber traits, among which a kinesin-13 gene, Ghir_A11G028430, was found to be associated with both cotton boll length and lint weight, and one kinesin-7 gene, Ghir_D04G017880 (Gh_Kinesin7), was significantly associated with fiber strength. In addition, two missense mutations were identified in the motor domain of the Gh_Kinesin7 protein. Overall, the kinesin gene family seemingly plays an important role in cotton fiber and boll development. The exploited kinesin genes will be beneficial for the genetic improvement of fiber quality and yield.
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Affiliation(s)
- Hong Zhu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Jianzhong Xu
- Stock seed farm of Gao'an, Yichun, 330800, Jiangxi, China
| | - Kanbing Yu
- Xishuangbanna Institute of Agricultural Science, Xishuangbanna Autonomous Prefecture, Yunnan, 666100, China
| | - Jianfei Wu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Huifang Xu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Shubin Wang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Tianwang Wen
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China.
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6
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Takagishi M, Yue Y, Gray RS, Verhey KJ, Wallingford JB. Motor protein Kif6 regulates cilia motility and polarity in brain ependymal cells. Dis Model Mech 2024; 17:dmm050137. [PMID: 38235522 PMCID: PMC10924229 DOI: 10.1242/dmm.050137] [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: 02/15/2023] [Accepted: 12/21/2023] [Indexed: 01/19/2024] Open
Abstract
Motile cilia on ependymal cells that line brain ventricular walls beat in concert to generate a flow of laminar cerebrospinal fluid (CSF). Dyneins and kinesins are ATPase microtubule motor proteins that promote the rhythmic beating of cilia axonemes. Despite common consensus about the importance of axonemal dynein motor proteins, little is known about how kinesin motors contribute to cilia motility. Here, we show that Kif6 is a slow processive motor (12.2±2.0 nm/s) on microtubules in vitro and localizes to both the apical cytoplasm and the axoneme in ependymal cells, although it does not display processive movement in vivo. Using a mouse mutant that models a human Kif6 mutation in a proband displaying macrocephaly, hypotonia and seizures, we found that loss of Kif6 function causes decreased ependymal cilia motility and, subsequently, decreases fluid flow on the surface of brain ventricular walls. Disruption of Kif6 also disrupts orientation of cilia, formation of robust apical actin networks and stabilization of basal bodies at the apical surface. This suggests a role for the Kif6 motor protein in the maintenance of ciliary homeostasis within ependymal cells.
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Affiliation(s)
- Maki Takagishi
- Department of Molecular Biosciences, Patterson Labs, The University of Texas at Austin, TX 78712, USA
| | - Yang Yue
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Ryan S. Gray
- Departments of Nutrition and Pediatrics, Dell Pediatric Research Institute, The University of Texas at Austin, Dell Medical School, Austin, TX 78712, USA
| | - Kristen J. Verhey
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - John B. Wallingford
- Department of Molecular Biosciences, Patterson Labs, The University of Texas at Austin, TX 78712, USA
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7
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Zhu H, Xu J, Yu K, Wu J, Xu H, Wang S, Wen T. Genome-wide identification of the key Kinesin genes during fiber and boll development in upland cotton (Gossypium hirsutum L). Mol Genet Genomics 2024; 299:2. [PMID: 38200363 DOI: 10.1007/s00438-023-02087-1] [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: 08/07/2021] [Accepted: 10/11/2023] [Indexed: 01/12/2024]
Abstract
Kinesin is a kind of motor protein, which interacts with microtubule filaments and regulates cellulose synthesis. Cotton fiber is a natural model for studying the cellular development and cellulose synthesis. Therefore, a systematic research of Kinesin gene family in cotton (Gossypium spp.) will be beneficial for both understanding the function of Kinesin protein and assisting the fiber improvement. Here, we aimed to identify the key Kinesin genes present in cotton by combining genome-wide expression profile data, association mapping, and public quantitative trait loci (QTLs) in upland cotton (Gossypium hirsutum L.). Results showed that 159 Kinesin genes, including 15 genes of the Kinesin-13 gene subfamily, were identified in upland cotton; of which 157 Kinesin genes can be traced back to the diploid ancestors, G. raimondii and G. arboreum. Using a combined analysis of public QTLs and genome-wide expression profile information, there were 29 QTLs co-localized together with 28 Kinesin genes in upland cotton, including 10 Kinesin-13 subfamily genes. Genome-wide expression profile data indicated that, among the 28 co-localized genes, seven Kinesin genes were predominantly expressed in fibers or ovules. By association mapping analysis, 30 Kinesin genes were significantly associated with three fiber traits, among which a Kinesin-13 gene, Ghir_A11G028430, was found to be associated with both cotton boll length and lint weight, and one Kinesin-7 gene, Ghir_D04G017880 (Gh_Kinesin7), was significantly associated with fiber strength. In addition, two missense mutations were identified in the motor domain of the Gh_Kinesin7 protein. Overall, the Kinesin gene family seemingly plays an important role in cotton fiber and boll development. The exploited Kinesin genes will be beneficial for the genetic improvement of fiber quality and yield.
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Affiliation(s)
- Hong Zhu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Jianzhong Xu
- Agriculture and Rural Affairs Bureau of Gao'an, Yichun, 330800, Jiangxi, China
| | - Kanbing Yu
- Xishuangbanna Institute of Agricultural Science, Xishuangbanna Autonomous Prefecture, 666100, Yunnan, China
| | - Jianfei Wu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Huifang Xu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Shubin Wang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Tianwang Wen
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China.
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8
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Nejabat M, Hadizadeh F, Sahebkar A. The Application of Kinesin Inhibitors in Medical Issues. Curr Rev Clin Exp Pharmacol 2024; 19:370-378. [PMID: 38275041 DOI: 10.2174/0127724328277623231204064614] [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: 08/16/2023] [Revised: 10/27/2023] [Accepted: 11/01/2023] [Indexed: 01/27/2024]
Abstract
Kinesins are a group of motor proteins in charge of several crucial functions in the cell. These proteins often bind to microtubules and perform their functions using the energy produced by ATP hydrolysis. One function of mitotic kinesin, a subclass of kinesin that is expressed during cell division at the mitotic phase, is to create the mitotic spindle. Uncontrolled cell growth is one trait of cancerous cells. Traditional anticancer medications still used in clinics include taxanes (paclitaxel) and vinca alkaloids (vincristine, vinblastine), which interfere with microtubule dynamics. However, because non-dividing cells like post-mitotic neurons contain microtubules, unwanted side effects like peripheral neuropathy are frequently found in patients taking these medications. More than ten members of the mitotic kinesin family play distinct or complementary roles during mitosis. The mitotic kinesin family's KSP, or Eg5, is regarded as its most dramatic target protein. The current work systematically reviews the use of kinesin inhibitors in the medical field. The challenges of KSP and the practical solutions are also examined, and the outcomes of the previous works are reported. The significant gaps and shortcomings of the related works are also highlighted, which can be an onset topic for future works.
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Affiliation(s)
- Mojgan Nejabat
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farzin Hadizadeh
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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9
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Marom R, Zhang B, Washington ME, Song IW, Burrage LC, Rossi VC, Berrier AS, Lindsey A, Lesinski J, Nonet ML, Chen J, Baldridge D, Silverman GA, Sutton VR, Rosenfeld JA, Tran AA, Hicks MJ, Murdock DR, Dai H, Weis M, Jhangiani SN, Muzny DM, Gibbs RA, Caswell R, Pottinger C, Cilliers D, Stals K, Eyre D, Krakow D, Schedl T, Pak SC, Lee BH. Dominant negative variants in KIF5B cause osteogenesis imperfecta via down regulation of mTOR signaling. PLoS Genet 2023; 19:e1011005. [PMID: 37934770 PMCID: PMC10656020 DOI: 10.1371/journal.pgen.1011005] [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: 05/29/2023] [Revised: 11/17/2023] [Accepted: 10/03/2023] [Indexed: 11/09/2023] Open
Abstract
BACKGROUND Kinesin motor proteins transport intracellular cargo, including mRNA, proteins, and organelles. Pathogenic variants in kinesin-related genes have been implicated in neurodevelopmental disorders and skeletal dysplasias. We identified de novo, heterozygous variants in KIF5B, encoding a kinesin-1 subunit, in four individuals with osteogenesis imperfecta. The variants cluster within the highly conserved kinesin motor domain and are predicted to interfere with nucleotide binding, although the mechanistic consequences on cell signaling and function are unknown. METHODS To understand the in vivo genetic mechanism of KIF5B variants, we modeled the p.Thr87Ile variant that was found in two patients in the C. elegans ortholog, unc-116, at the corresponding position (Thr90Ile) by CRISPR/Cas9 editing and performed functional analysis. Next, we studied the cellular and molecular consequences of the recurrent p.Thr87Ile variant by microscopy, RNA and protein analysis in NIH3T3 cells, primary human fibroblasts and bone biopsy. RESULTS C. elegans heterozygous for the unc-116 Thr90Ile variant displayed abnormal body length and motility phenotypes that were suppressed by additional copies of the wild type allele, consistent with a dominant negative mechanism. Time-lapse imaging of GFP-tagged mitochondria showed defective mitochondria transport in unc-116 Thr90Ile neurons providing strong evidence for disrupted kinesin motor function. Microscopy studies in human cells showed dilated endoplasmic reticulum, multiple intracellular vacuoles, and abnormal distribution of the Golgi complex, supporting an intracellular trafficking defect. RNA sequencing, proteomic analysis, and bone immunohistochemistry demonstrated down regulation of the mTOR signaling pathway that was partially rescued with leucine supplementation in patient cells. CONCLUSION We report dominant negative variants in the KIF5B kinesin motor domain in individuals with osteogenesis imperfecta. This study expands the spectrum of kinesin-related disorders and identifies dysregulated signaling targets for KIF5B in skeletal development.
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Affiliation(s)
- Ronit Marom
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
- Texas Children’s Hospital, Houston, Texas, United States of America
| | - Bo Zhang
- Department of Pediatrics, Washington University School of Medicine, St Louis, Missouri, United States of America
| | - Megan E. Washington
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - I-Wen Song
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Lindsay C. Burrage
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
- Texas Children’s Hospital, Houston, Texas, United States of America
| | - Vittoria C. Rossi
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
- Texas Children’s Hospital, Houston, Texas, United States of America
| | - Ava S. Berrier
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Anika Lindsey
- Department of Pediatrics, Washington University School of Medicine, St Louis, Missouri, United States of America
| | - Jacob Lesinski
- Department of Pediatrics, Washington University School of Medicine, St Louis, Missouri, United States of America
| | - Michael L. Nonet
- Department of Neuroscience, Washington University School of Medicine, St Louis, Missouri, United States of America
| | - Jian Chen
- Department of Genetics, Washington University School of Medicine, St Louis, Missouri, United States of America
| | - Dustin Baldridge
- Department of Pediatrics, Washington University School of Medicine, St Louis, Missouri, United States of America
| | - Gary A. Silverman
- Department of Pediatrics, Washington University School of Medicine, St Louis, Missouri, United States of America
| | - V. Reid Sutton
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
- Texas Children’s Hospital, Houston, Texas, United States of America
| | - Jill A. Rosenfeld
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Alyssa A. Tran
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - M. John Hicks
- Texas Children’s Hospital, Houston, Texas, United States of America
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, Texas, United States of America
| | - David R. Murdock
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Hongzheng Dai
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - MaryAnn Weis
- Department of Orthopaedics and Sports Medicine, University of Washington, Seattle, Washington, United States of America
| | - Shalini N. Jhangiani
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Donna M. Muzny
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Richard A. Gibbs
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Richard Caswell
- Exeter Genomics Laboratory, Royal Devon University Healthcare NHS Foundation Trust, Exeter, United Kingdom
| | - Carrie Pottinger
- All Wales Medical Genomics Service, Wrexham Maelor Hospital, Wrexham, UK
| | - Deirdre Cilliers
- Oxford Centre for Genomic Medicine, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| | - Karen Stals
- Exeter Genomics Laboratory, Royal Devon University Healthcare NHS Foundation Trust, Exeter, United Kingdom
| | | | - David Eyre
- Department of Orthopaedics and Sports Medicine, University of Washington, Seattle, Washington, United States of America
| | - Deborah Krakow
- Human Genetics, Obstetrics & Gynecology, Orthopedic Surgery, University of California, Los Angeles, California, United States of America
| | - Tim Schedl
- Department of Genetics, Washington University School of Medicine, St Louis, Missouri, United States of America
| | - Stephen C. Pak
- Department of Pediatrics, Washington University School of Medicine, St Louis, Missouri, United States of America
| | - Brendan H. Lee
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
- Texas Children’s Hospital, Houston, Texas, United States of America
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10
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Ibrahim S, Yang C, Yue C, Song X, Deng Y, Li Q, Lü W. Whole Transcriptome Analysis Reveals the Global Molecular Responses of mRNAs, lncRNAs, miRNAs, circRNAs, and Their ceRNA Networks to Salinity Stress in Hong Kong Oysters, Crassostrea hongkongensis. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2023; 25:624-641. [PMID: 37493868 DOI: 10.1007/s10126-023-10234-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 07/20/2023] [Indexed: 07/27/2023]
Abstract
The Hong Kong oyster, Crassostrea hongkongensis, is an estuarine bivalve with remarkable commercial value in South China, and the increase of salinity in estuaries during the dry season has posed a major threat to the oyster farming. To explore the global transcriptional response to salinity stress, a whole-transcriptome analysis was performed with the gills of oysters in 6‰, 18‰, and 30‰ filtered seawater. Overall, 2243, 194, 371, and 167 differentially expressed mRNAs (DEmRNAs), differentially expressed long non-coding RNAs (DElncRNAs), differentially expressed circular RNAs (DEcircRNAs), and differentially expressed microRNAs (DEmiRNAs) were identified, respectively. Based on GO enrichment and KEGG pathway analysis, these important DEmRNAs, DElncRNAs, DEcircRNAs, and DEmiRNAs were predicted to be mainly involved in amino acids metabolism, microtubule movement, and immune defense. This demonstrated the complexity of dynamic transcriptomic profiles of C. hongkongensis in response to salinity fluctuation. The regulatory relationships of DEmiRNAs-DEmRNAs, DElncRNAs-DEmiRNAs, and DEcircRNAs-DEmiRNAs were also predicted, and finally, a circRNA-associated competing endogenous RNA (ceRNA) network was constructed, consisting of six DEcircRNAs, eight DEmiRNAs, and five DEmRNAs. The key roles of taurine and hypotaurine metabolism and phenylalanine metabolism were highlighted in this ceRNA network, which was consistent with the major contribution of free amino acids to intracellular osmolality and cell volume regulation. Collectively, this study provides comprehensive data, contributing to the exploration of coding and non-coding RNAs in C. hongkongensis salinity response. The results would benefit the understanding of the response mechanism of bivalves against salinity fluctuation, and provide clues for genetic improvement of C. hongkongensis with hyper-salinity tolerance.
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Affiliation(s)
- Salifu Ibrahim
- Guangdong Marine Invertebrates Science and Technology Innovation Center, Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Chuangye Yang
- Pearl Breeding and Processing Engineering Technology Research Centre of Guangdong Province, Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China
- Guangdong Provincial Engineering Laboratory for Mariculture Organism Breeding, Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Chenyang Yue
- Guangdong Marine Invertebrates Science and Technology Innovation Center, Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China.
| | - Xinyu Song
- Guangdong Marine Invertebrates Science and Technology Innovation Center, Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Yuewen Deng
- Pearl Breeding and Processing Engineering Technology Research Centre of Guangdong Province, Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China
- Guangdong Provincial Engineering Laboratory for Mariculture Organism Breeding, Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Qi Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Wengang Lü
- Guangdong Marine Invertebrates Science and Technology Innovation Center, Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China
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11
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Kałuzińska-Kołat Ż, Kołat D, Kośla K, Płuciennik E, Bednarek AK. Delineating the glioblastoma stemness by genes involved in cytoskeletal rearrangements and metabolic alterations. World J Stem Cells 2023; 15:302-322. [PMID: 37342224 PMCID: PMC10277965 DOI: 10.4252/wjsc.v15.i5.302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 02/03/2023] [Accepted: 03/08/2023] [Indexed: 05/26/2023] Open
Abstract
Literature data on glioblastoma ongoingly underline the link between metabolism and cancer stemness, the latter is one responsible for potentiating the resistance to treatment, inter alia due to increased invasiveness. In recent years, glioblastoma stemness research has bashfully introduced a key aspect of cytoskeletal rearrangements, whereas the impact of the cytoskeleton on invasiveness is well known. Although non-stem glioblastoma cells are less invasive than glioblastoma stem cells (GSCs), these cells also acquire stemness with greater ease if characterized as invasive cells and not tumor core cells. This suggests that glioblastoma stemness should be further investigated for any phenomena related to the cytoskeleton and metabolism, as they may provide new invasion-related insights. Previously, we proved that interplay between metabolism and cytoskeleton existed in glioblastoma. Despite searching for cytoskeleton-related processes in which the investigated genes might have been involved, not only did we stumble across the relation to metabolism but also reported genes that were found to be implicated in stemness. Thus, dedicated research on these genes in GSCs seems justifiable and might reveal novel directions and/or biomarkers that could be utilized in the future. Herein, we review the previously identified cytoskeleton/metabolism-related genes through the prism of glioblastoma stemness.
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Affiliation(s)
- Żaneta Kałuzińska-Kołat
- Department of Experimental Surgery, Medical University of Lodz, Lodz 90-136, Lodzkie, Poland
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
| | - Damian Kołat
- Department of Experimental Surgery, Medical University of Lodz, Lodz 90-136, Lodzkie, Poland
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
| | - Katarzyna Kośla
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
| | - Elżbieta Płuciennik
- Department of Functional Genomics, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
| | - Andrzej K Bednarek
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
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12
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Zare Ashrafi F, Akhtarkhavari T, Fattahi Z, Asadnezhad M, Beheshtian M, Arzhangi S, Najmabadi H, Kahrizi K. Emerging Epidemiological Data on Rare Intellectual Disability Syndromes from Analyzing the Data of a Large Iranian Cohort. ARCHIVES OF IRANIAN MEDICINE 2023; 26:186-197. [PMID: 38301078 PMCID: PMC10685746 DOI: 10.34172/aim.2023.29] [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: 11/19/2022] [Accepted: 02/25/2023] [Indexed: 02/03/2024]
Abstract
BACKGROUND Intellectual disability (ID) is a genetically heterogeneous condition, and so far, 1679 human genes have been identified for this phenotype. Countries with a high rate of parental consanguinity, such as Iran, provide an excellent opportunity to identify the remaining novel ID genes, especially those with an autosomal recessive (AR) mode of inheritance. This study aimed to investigate the most prevalent ID genes identified via next-generation sequencing (NGS) in a large ID cohort at the Genetics Research Center (GRC) of the University of Social Welfare and Rehabilitation Sciences. METHODS First, we surveyed the epidemiological data of 619 of 1295 families in our ID cohort, who referred to the Genetics Research Center from all over the country between 2004 and 2021 for genetic investigation via the NGS pipeline. We then compared our data with those of several prominent studies conducted in consanguineous countries. Data analysis, including cohort data extraction, categorization, and comparison, was performed using the R program version 4.1.2. RESULTS We categorized the most common ID genes that were mutated in more than two families into 17 categories. The most common syndromic ID in our cohort was AP4 deficiency syndrome, and the most common non-syndromic autosomal recessive intellectual disability (ARID) gene was ASPM. We identified two unrelated families for the 36 ID genes. We found 14 genes in common between our cohort and the Arab and Pakistani groups, of which three genes (AP4M1, AP4S1, and ADGRG1) were repeated more than once. CONCLUSION To date, there has been no comprehensive targeted NGS platform for the detection of ID genes in our country. Due to the large sample size of our study, our data may provide the initial step toward designing an indigenously targeted NGS platform for the diagnosis of ID, especially common ARID in our population.
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Affiliation(s)
- Farzane Zare Ashrafi
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Tara Akhtarkhavari
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Zohreh Fattahi
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Maryam Asadnezhad
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Maryam Beheshtian
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Sanaz Arzhangi
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Hossein Najmabadi
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Kimia Kahrizi
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
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13
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Konjikusic MJ, Lee C, Yue Y, Shrestha BD, Nguimtsop AM, Horani A, Brody S, Prakash VN, Gray RS, Verhey KJ, Wallingford JB. Kif9 is an active kinesin motor required for ciliary beating and proximodistal patterning of motile axonemes. J Cell Sci 2023; 136:jcs259535. [PMID: 35531639 PMCID: PMC9357393 DOI: 10.1242/jcs.259535] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 04/27/2022] [Indexed: 03/19/2024] Open
Abstract
Most motile cilia have a stereotyped structure of nine microtubule outer doublets and a single central pair of microtubules. The central pair of microtubules are surrounded by a set of proteins, termed the central pair apparatus. A specific kinesin, Klp1 projects from the central pair and contributes to ciliary motility in Chlamydomonas. The vertebrate ortholog, Kif9, is required for beating in mouse sperm flagella, but the mechanism of Kif9/Klp1 function remains poorly defined. Here, using Xenopus epidermal multiciliated cells, we show that Kif9 is necessary for ciliary motility and the proper distal localization of not only central pair proteins, but also radial spokes and dynein arms. In addition, single-molecule assays in vitro reveal that Xenopus Kif9 is a long-range processive motor, although it does not mediate long-range movement in ciliary axonemes in vivo. Together, our data suggest that Kif9 is integral for ciliary beating and is necessary for proper axonemal distal end integrity.
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Affiliation(s)
- Mia J. Konjikusic
- Department of Molecular Biosciences, University of Texas at Austin, Austin, TX 78712, USA
- Department of Pediatrics, Dell Pediatric Research Institute, 1400 Barbara Jordan Blvd, The University of Texas at Austin, Dell Medical School, Austin, TX 78712, USA
- Department of Nutritional Sciences, 200 W 24th Street, The University of Texas at Austin, Austin, TX 78712, USA
| | - Chanjae Lee
- Department of Molecular Biosciences, University of Texas at Austin, Austin, TX 78712, USA
| | - Yang Yue
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | | | - Ange M. Nguimtsop
- Department of Molecular Biosciences, University of Texas at Austin, Austin, TX 78712, USA
| | - Amjad Horani
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO 63130, USA
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Steven Brody
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Vivek N. Prakash
- Department of Physics, University of Miami, Coral Gables, FL 33146, USA
- Department of Biology and Department of Marine Biology and Ecology, University of Miami, Coral Gables, FL 33146,USA
| | - Ryan S. Gray
- Department of Pediatrics, Dell Pediatric Research Institute, 1400 Barbara Jordan Blvd, The University of Texas at Austin, Dell Medical School, Austin, TX 78712, USA
- Department of Nutritional Sciences, 200 W 24th Street, The University of Texas at Austin, Austin, TX 78712, USA
| | - Kristen J. Verhey
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - John B. Wallingford
- Department of Molecular Biosciences, University of Texas at Austin, Austin, TX 78712, USA
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14
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Wang X, Liu Q, Li J, Zhou L, Wang T, Zhao N. Dynamic cellular and molecular characteristics of spermatogenesis in the viviparous marine teleost Sebastes schlegelii†. Biol Reprod 2023; 108:338-352. [PMID: 36401879 DOI: 10.1093/biolre/ioac203] [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: 03/05/2022] [Revised: 07/13/2022] [Accepted: 11/02/2022] [Indexed: 11/21/2022] Open
Abstract
Spermatogenesis is a dynamic cell developmental process that is essential for reproductive success. Vertebrates utilize a variety of reproductive strategies, including sperm diversity, and internal and external fertilization. Research on the cellular and molecular dynamic changes involved in viviparous teleost spermatogenesis, however, is currently lacking. Here, we combined cytohistology, 10 × genomic single-cell RNA-seq, and transcriptome technology to determine the dynamic development characteristics of the spermatogenesis of Sebastes schlegelii. The expressions of lhcgr (Luteinizing hormone/Choriogonadotropin receptor), fshr (follicle-stimulating hormone receptor), ar (androgen receptor), pgr (progesterone receptor), and cox (cyclo-oxygen-ase), as well as the prostaglandin E and F levels peaked during the maturation period, indicating that they were important for sperm maturation and mating. Fifteen clusters were identified based on the 10 × genomic single-cell results. The cell markers of the sub-cluster were identified by their upregulation; piwil, dazl, and dmrt1 were upregulated and identified as spermatogonium markers, and sycp1/3 and spo11 were identified as spermatocyte markers. For S. schlegelii, the sperm head nucleus was elongated (spherical to streamlined in shape), which is a typical characteristic for sperm involved in internal fertilization. We also identified a series of crucial genes associated with spermiogenesis, such as spata6, spag16, kif20a, trip10, and klf10, while kif2c, kifap3, fez2, and spaca6 were found to be involved in nucleus elongation. The results of this study will enrich our cellular and molecular knowledge of spermatogenesis and spermiogenesis in fish that undergo internal fertilization.
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Affiliation(s)
- Xueying Wang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Qinghua Liu
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Jun Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Li Zhou
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.,College of Marine Science, University of Chinese Academy of Sciences, Beijing, China
| | - Tao Wang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.,School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, China
| | - Ning Zhao
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.,College of Marine Science, University of Chinese Academy of Sciences, Beijing, China
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15
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Grimaud B, Frétaud M, Terras F, Bénassy A, Duroure K, Bercier V, Trippé-Allard G, Mohammedi R, Gacoin T, Del Bene F, Marquier F, Langevin C, Treussart F. In Vivo Fast Nonlinear Microscopy Reveals Impairment of Fast Axonal Transport Induced by Molecular Motor Imbalances in the Brain of Zebrafish Larvae. ACS NANO 2022; 16:20470-20487. [PMID: 36459488 DOI: 10.1021/acsnano.2c06799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Cargo transport by molecular motors along microtubules is essential for the function of eukaryotic cells, in particular neurons in which axonal transport defects constitute the early pathological features of neurodegenerative diseases. Mainly studied in motor and sensory neurons, axonal transport is still difficult to characterize in neurons of the brain in absence of appropriate in vivo tools. Here, we measured fast axonal transport by tracing the second harmonic generation (SHG) signal of potassium titanyl phosphate (KTP) nanocrystals (nanoKTP) endocytosed by brain neurons of zebrafish (Zf) larvae. Thanks to the optical translucency of Zf larvae and to the perfect photostability of nanoKTP SHG, we achieved a high scanning speed of 20 frames (of ≈90 μm × 60 μm size) per second in Zf brain. We focused our study on endolysosomal vesicle transport in axons of known polarization, separately analyzing kinesin and dynein motor-driven displacements. To validate our assay, we used either loss-of-function mutations of dynein or kinesin 1 or the dynein inhibitor dynapyrazole and quantified several transport parameters. We successfully demonstrated that dynapyrazole reduces the nanoKTP mobile fraction and retrograde run length consistently, while the retrograde run length increased in kinesin 1 mutants. Taking advantage of nanoKTP SHG directional emission, we also quantified fluctuations of vesicle orientation. Thus, by combining endocytosis of nanocrystals having a nonlinear response, fast two-photon microscopy, and high-throughput analysis, we are able to finely monitor fast axonal transport in vivo in the brain of a vertebrate and reveal subtle axonal transport alterations. The high spatiotemporal resolution achieved in our model may be relevant to precisely investigate axonal transport impairment associated with disease models.
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Affiliation(s)
- Baptiste Grimaud
- ENS Paris-Saclay, CNRS, CentraleSupélec, LuMIn, Université Paris-Saclay, 91190Gif-sur-Yvette, France
| | - Maxence Frétaud
- INRAE, IERP, Université Paris-Saclay, 78350Jouy-ens-Josas, France
- INRAE, VIM, Université Paris-Saclay, 78350Jouy-en-Josas, France
| | - Feriel Terras
- ENS Paris-Saclay, CNRS, CentraleSupélec, LuMIn, Université Paris-Saclay, 91190Gif-sur-Yvette, France
| | - Antoine Bénassy
- ENS Paris-Saclay, CNRS, CentraleSupélec, LuMIn, Université Paris-Saclay, 91190Gif-sur-Yvette, France
| | - Karine Duroure
- INSERM, CNRS, Institut de la Vision, Sorbonne Université, 75012Paris, France
| | - Valérie Bercier
- Center for Brain and Disease Research, Laboratory of Neurobiology, VIB, 3000Leuven, Belgium
| | - Gaëlle Trippé-Allard
- ENS Paris-Saclay, CNRS, CentraleSupélec, LuMIn, Université Paris-Saclay, 91190Gif-sur-Yvette, France
| | - Rabei Mohammedi
- Laboratory of Condensed Matter Physics, Ecole Polytechnique, CNRS, Institut Polytechnique de Paris, 91128Palaiseau Cedex, France
| | - Thierry Gacoin
- Laboratory of Condensed Matter Physics, Ecole Polytechnique, CNRS, Institut Polytechnique de Paris, 91128Palaiseau Cedex, France
| | - Filippo Del Bene
- INSERM, CNRS, Institut de la Vision, Sorbonne Université, 75012Paris, France
| | - François Marquier
- ENS Paris-Saclay, CNRS, CentraleSupélec, LuMIn, Université Paris-Saclay, 91190Gif-sur-Yvette, France
| | | | - François Treussart
- ENS Paris-Saclay, CNRS, CentraleSupélec, LuMIn, Université Paris-Saclay, 91190Gif-sur-Yvette, France
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16
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Qian X, DeGennaro EM, Talukdar M, Akula SK, Lai A, Shao DD, Gonzalez D, Marciano JH, Smith RS, Hylton NK, Yang E, Bazan JF, Barrett L, Yeh RC, Hill RS, Beck SG, Otani A, Angad J, Mitani T, Posey JE, Pehlivan D, Calame D, Aydin H, Yesilbas O, Parks KC, Argilli E, England E, Im K, Taranath A, Scott HS, Barnett CP, Arts P, Sherr EH, Lupski JR, Walsh CA. Loss of non-motor kinesin KIF26A causes congenital brain malformations via dysregulated neuronal migration and axonal growth as well as apoptosis. Dev Cell 2022; 57:2381-2396.e13. [PMID: 36228617 PMCID: PMC10585591 DOI: 10.1016/j.devcel.2022.09.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 06/13/2022] [Accepted: 09/20/2022] [Indexed: 01/16/2023]
Abstract
Kinesins are canonical molecular motors but can also function as modulators of intracellular signaling. KIF26A, an unconventional kinesin that lacks motor activity, inhibits growth-factor-receptor-bound protein 2 (GRB2)- and focal adhesion kinase (FAK)-dependent signal transduction, but its functions in the brain have not been characterized. We report a patient cohort with biallelic loss-of-function variants in KIF26A, exhibiting a spectrum of congenital brain malformations. In the developing brain, KIF26A is preferentially expressed during early- and mid-gestation in excitatory neurons. Combining mice and human iPSC-derived organoid models, we discovered that loss of KIF26A causes excitatory neuron-specific defects in radial migration, localization, dendritic and axonal growth, and apoptosis, offering a convincing explanation of the disease etiology in patients. Single-cell RNA sequencing in KIF26A knockout organoids revealed transcriptional changes in MAPK, MYC, and E2F pathways. Our findings illustrate the pathogenesis of KIF26A loss-of-function variants and identify the surprising versatility of this non-motor kinesin.
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Affiliation(s)
- Xuyu Qian
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Howard Hughes Medical Institute, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Allen Discovery Center for Human Brain Evolution, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Ellen M DeGennaro
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Howard Hughes Medical Institute, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Allen Discovery Center for Human Brain Evolution, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Maya Talukdar
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Shyam K Akula
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Howard Hughes Medical Institute, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Allen Discovery Center for Human Brain Evolution, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Harvard, MIT MD/PhD Program, Program in Neuroscience, Harvard Medical School, Boston, MA 02115, USA
| | - Abbe Lai
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Howard Hughes Medical Institute, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Allen Discovery Center for Human Brain Evolution, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Diane D Shao
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Howard Hughes Medical Institute, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Department of Neurology, Boston Children's Hospital, Boston, MA 02115, USA
| | - Dilenny Gonzalez
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Howard Hughes Medical Institute, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Jack H Marciano
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Howard Hughes Medical Institute, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Richard S Smith
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Howard Hughes Medical Institute, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Allen Discovery Center for Human Brain Evolution, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Norma K Hylton
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Howard Hughes Medical Institute, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Harvard, MIT MD/PhD Program, Program in Neuroscience, Harvard Medical School, Boston, MA 02115, USA
| | - Edward Yang
- Department of Neurology, Boston Children's Hospital, Boston, MA 02115, USA; Department of Radiology, Boston Children's Hospital, Boston, MA 02115, USA
| | | | - Lee Barrett
- Department of Neurobiology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Rebecca C Yeh
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Howard Hughes Medical Institute, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - R Sean Hill
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Howard Hughes Medical Institute, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Allen Discovery Center for Human Brain Evolution, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Samantha G Beck
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Howard Hughes Medical Institute, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Aoi Otani
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Jolly Angad
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Tadahiro Mitani
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jennifer E Posey
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Davut Pehlivan
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA; Texas Children's Hospital, Houston, TX 77030, USA; Section of Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Daniel Calame
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Texas Children's Hospital, Houston, TX 77030, USA; Section of Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Hatip Aydin
- Centre of Genetics Diagnosis, Zeynep Kamil Maternity and Children's Training and Research Hospital, Istanbul, Turkey
| | - Osman Yesilbas
- Department of Pediatrics, Division of Pediatric Critical Care Medicine, Faculty of Medicine, Karadeniz Technical University, Trabzon 61080, Turkey
| | - Kendall C Parks
- Department of Neurology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Emanuela Argilli
- Department of Neurology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Eleina England
- Center for Mendelian Genomics, Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Kiho Im
- Division of Newborn Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Ajay Taranath
- Department of Medical Imaging, South Australia Medical Imaging, Women's and Children's Hospital, North Adelaide, SA, Australia
| | - Hamish S Scott
- Department of Genetics and Molecular Pathology, Centre for Cancer Biology, An Alliance Between SA Pathology and the University of South Australia, Adelaide, SA, Australia; Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia; ACRF Cancer Genomics Facility, Centre for Cancer Biology, An Alliance Between SA Pathology and the University of South Australia, Adelaide, SA, Australia; Australian Genomics, Parkville, VIC, Australia
| | - Christopher P Barnett
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia; Pediatric and Reproductive Genetics Unit, Women's and Children's Hospital, North Adelaide, SA, Australia
| | - Peer Arts
- Department of Genetics and Molecular Pathology, Centre for Cancer Biology, An Alliance Between SA Pathology and the University of South Australia, Adelaide, SA, Australia
| | - Elliott H Sherr
- Department of Neurology, University of California, San Francisco, San Francisco, CA 94143, USA; Institute of Human Genetics and Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA 94143, USA
| | - James R Lupski
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA; Texas Children's Hospital, Houston, TX 77030, USA; Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Christopher A Walsh
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Howard Hughes Medical Institute, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA; Allen Discovery Center for Human Brain Evolution, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA.
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17
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Poulos A, Budaitis BG, Verhey KJ. Single-motor and multi-motor motility properties of kinesin-6 family members. Biol Open 2022; 11:276958. [PMID: 36178151 PMCID: PMC9581516 DOI: 10.1242/bio.059533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 09/22/2022] [Indexed: 12/31/2022] Open
Abstract
Kinesin motor proteins are responsible for orchestrating a variety of microtubule-based processes including intracellular transport, cell division, cytoskeletal organization, and cilium function. Members of the kinesin-6 family play critical roles in anaphase and cytokinesis during cell division as well as in cargo transport and microtubule organization during interphase, however little is known about their motility properties. We find that truncated versions of MKLP1 (HsKIF23), MKLP2 (HsKIF20A), and HsKIF20B largely interact statically with microtubules as single molecules but can also undergo slow, processive motility, most prominently for MKLP2. In multi-motor assays, all kinesin-6 proteins were able to drive microtubule gliding and MKLP1 and KIF20B were also able to drive robust transport of both peroxisomes, a low-load cargo, and Golgi, a high-load cargo, in cells. In contrast, MKLP2 showed minimal transport of peroxisomes and was unable to drive Golgi dispersion. These results indicate that the three mammalian kinesin-6 motor proteins can undergo processive motility but differ in their ability to generate forces needed to drive cargo transport and microtubule organization in cells.
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Affiliation(s)
- Andrew Poulos
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Breane G. Budaitis
- Cellular and Molecular Biology Program, University of Michigan Medical School, Ann Arbor, MI 48109, USA,Authors for correspondence (; )
| | - Kristen J. Verhey
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA,Cellular and Molecular Biology Program, University of Michigan Medical School, Ann Arbor, MI 48109, USA,Authors for correspondence (; )
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18
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Kinesin Eg5 Selective Inhibition by Newly Synthesized Molecules as an Alternative Approach to Counteract Breast Cancer Progression: An In Vitro Study. BIOLOGY 2022; 11:biology11101450. [PMID: 36290354 PMCID: PMC9598199 DOI: 10.3390/biology11101450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/22/2022] [Accepted: 09/28/2022] [Indexed: 11/06/2022]
Abstract
Breast cancer (BC) is one of the most diagnosed cancers in women. Recently, a promising target for BC treatment was found in kinesin Eg5, a mitotic motor protein that allows bipolar spindle formation and cell replication. Thus, the aim of this work was to evaluate the effects of novel thiadiazoline-based Eg5 inhibitors, analogs of K858, in an in vitro model of BC (MCF7 cell line). Compounds 2 and 41 were selected for their better profile as they reduce MCF7 viability at lower concentrations and with minimal effect on non-tumoral cells with respect to K858. Compounds 2 and 41 counteract MCF7 migration by negatively modulating the NF-kB/MMP-9 pathway. The expression of HIF-1α and VEGF appeared also reduced by 2 and 41 administration, thus preventing the recruitment of the molecular cascade involved in angiogenesis promotion. In addition, 2 provokes an increased caspase-3 activation thus triggering the MCF7 apoptotic event, while 41 and K858 seem to induce the necrosis axis, as disclosed by the increased expression of PARP. These results allow us to argue that 2 and 41 are able to simultaneously intervene on pivotal molecular signaling involved in breast cancer progression, leading to the assumption that Eg5 inhibition can represent a valid approach to counteract BC progression.
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19
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Guttery DS, Zeeshan M, Ferguson DJP, Holder AA, Tewari R. Division and Transmission: Malaria Parasite Development in the Mosquito. Annu Rev Microbiol 2022; 76:113-134. [PMID: 35609946 DOI: 10.1146/annurev-micro-041320-010046] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The malaria parasite life cycle alternates between two hosts: a vertebrate and the female Anopheles mosquito vector. Cell division, proliferation, and invasion are essential for parasite development, transmission, and survival. Most research has focused on Plasmodium development in the vertebrate, which causes disease; however, knowledge of malaria parasite development in the mosquito (the sexual and transmission stages) is now rapidly accumulating, gathered largely through investigation of the rodent malaria model, with Plasmodium berghei. In this review, we discuss the seminal genome-wide screens that have uncovered key regulators of cell proliferation, invasion, and transmission during Plasmodium sexual development. Our focus is on the roles of transcription factors, reversible protein phosphorylation, and molecular motors. We also emphasize the still-unanswered important questions around key pathways in cell division during the vector transmission stages and how they may be targeted in future studies.
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Affiliation(s)
- David S Guttery
- School of Life Sciences, University of Nottingham, Nottingham, United Kingdom; ,
- Leicester Cancer Research Centre, University of Leicester, Leicester, United Kingdom;
| | - Mohammad Zeeshan
- School of Life Sciences, University of Nottingham, Nottingham, United Kingdom; ,
| | - David J P Ferguson
- Nuffield Department of Clinical Laboratory Sciences and John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom;
- Department of Biological and Medical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Oxford, United Kingdom
| | - Anthony A Holder
- Malaria Parasitology Laboratory, Francis Crick Institute, London, United Kingdom;
| | - Rita Tewari
- School of Life Sciences, University of Nottingham, Nottingham, United Kingdom; ,
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20
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Hibbard JVK, Vázquez N, Wallingford JB. Cilia proteins getting to work - how do they commute from the cytoplasm to the base of cilia? J Cell Sci 2022; 135:jcs259444. [PMID: 36073764 PMCID: PMC9482345 DOI: 10.1242/jcs.259444] [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: 11/20/2022] Open
Abstract
Cilia are multifunctional organelles that originated with the last eukaryotic common ancestor and play central roles in the life cycles of diverse organisms. The motile flagella that move single cells like sperm or unicellular organisms, the motile cilia on animal multiciliated cells that generate fluid flow in organs, and the immotile primary cilia that decorate nearly all cells in animals share many protein components in common, yet each also requires specialized proteins to perform their specialized functions. Despite a now-advanced understanding of how such proteins are transported within cilia, we still know very little about how they are transported from their sites of synthesis through the cytoplasm to the ciliary base. Here, we review the literature concerning this underappreciated topic in ciliary cell biology. We discuss both general mechanisms, as well as specific examples of motor-driven active transport and passive transport via diffusion-and-capture. We then provide deeper discussion of specific, illustrative examples, such as the diverse array of protein subunits that together comprise the intraflagellar transport (IFT) system and the multi-protein axonemal dynein motors that drive beating of motile cilia. We hope this Review will spur further work, shedding light not only on ciliogenesis and ciliary signaling, but also on intracellular transport in general.
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Affiliation(s)
| | | | - John B. Wallingford
- Department of Molecular Biosciences, University of Texas, Austin, TX 78751, USA
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21
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Flex E, Albadri S, Radio FC, Cecchetti S, Lauri A, Priolo M, Kissopoulos M, Carpentieri G, Fasano G, Venditti M, Magliocca V, Bellacchio E, Welch CL, Colombo PC, Kochav SM, Chang R, Barrick R, Trivisano M, Micalizzi A, Borghi R, Messina E, Mancini C, Pizzi S, De Santis F, Rosello M, Specchio N, Compagnucci C, McWalter K, Chung WK, Del Bene F, Tartaglia M. Dominantly acting KIF5B variants with pleiotropic cellular consequences cause variable clinical phenotypes. Hum Mol Genet 2022; 32:473-488. [PMID: 36018820 PMCID: PMC9851748 DOI: 10.1093/hmg/ddac213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/05/2022] [Accepted: 08/23/2022] [Indexed: 01/25/2023] Open
Abstract
Kinesins are motor proteins involved in microtubule (MT)-mediated intracellular transport. They contribute to key cellular processes, including intracellular trafficking, organelle dynamics and cell division. Pathogenic variants in kinesin-encoding genes underlie several human diseases characterized by an extremely variable clinical phenotype, ranging from isolated neurodevelopmental/neurodegenerative disorders to syndromic phenotypes belonging to a family of conditions collectively termed as 'ciliopathies.' Among kinesins, kinesin-1 is the most abundant MT motor for transport of cargoes towards the plus end of MTs. Three kinesin-1 heavy chain isoforms exist in mammals. Different from KIF5A and KIF5C, which are specifically expressed in neurons and established to cause neurological diseases when mutated, KIF5B is an ubiquitous protein. Three de novo missense KIF5B variants were recently described in four subjects with a syndromic skeletal disorder characterized by kyphomelic dysplasia, hypotonia and DD/ID. Here, we report three dominantly acting KIF5B variants (p.Asn255del, p.Leu498Pro and p.Leu537Pro) resulting in a clinically wide phenotypic spectrum, ranging from dilated cardiomyopathy with adult-onset ophthalmoplegia and progressive skeletal myopathy to a neurodevelopmental condition characterized by severe hypotonia with or without seizures. In vitro and in vivo analyses provide evidence that the identified disease-associated KIF5B variants disrupt lysosomal, autophagosome and mitochondrial organization, and impact cilium biogenesis. All variants, and one of the previously reported missense changes, were shown to affect multiple developmental processes in zebrafish. These findings document pleiotropic consequences of aberrant KIF5B function on development and cell homeostasis, and expand the phenotypic spectrum resulting from altered kinesin-mediated processes.
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Affiliation(s)
- Elisabetta Flex
- To whom correspondence should be addressed at: Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy. Tel: +39 06 4990 2866; ; Marco Tartaglia, Genetics and Rare Disease Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, Viale di San Paolo 15, 00146 Rome, Italy. Tel: +39 06 6859 3742;
| | | | - Francesca Clementina Radio
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Serena Cecchetti
- Core Facilities, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Antonella Lauri
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Manuela Priolo
- UOSD Genetica Medica, Grande Ospedale Metropolitano "Bianchi Melacrino Morelli", 89124 Reggio Calabria, Italy
| | - Marta Kissopoulos
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Giovanna Carpentieri
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy,Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Giulia Fasano
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Martina Venditti
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Valentina Magliocca
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Emanuele Bellacchio
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Carrie L Welch
- Department of Pediatrics, Columbia University Irving Medical Center, NY, New York 10032, USA
| | - Paolo C Colombo
- Department of Medicine, Columbia University Irving Medical Center, NY, New York 10032, USA
| | - Stephanie M Kochav
- Department of Medicine, Columbia University Irving Medical Center, NY, New York 10032, USA
| | - Richard Chang
- Division of Metabolic Disorders, Children's Hospital of Orange County (CHOC), CA, Orange 92868, USA
| | - Rebekah Barrick
- Division of Metabolic Disorders, Children's Hospital of Orange County (CHOC), CA, Orange 92868, USA
| | - Marina Trivisano
- Department of Neuroscience, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Alessia Micalizzi
- Translational Cytogenomics Research Unit, Bambino Gesù Children's Hospital, IRCCS, 00146 Rome, Italy
| | - Rossella Borghi
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Elena Messina
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy,Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Cecilia Mancini
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Simone Pizzi
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Flavia De Santis
- Institut Curie, PSL Research University, INSERM U934, CNRS UMR3215 Paris, France
| | - Marion Rosello
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, 17 Rue Moreau, F-75012 Paris, France
| | - Nicola Specchio
- Department of Neuroscience, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Claudia Compagnucci
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | | | - Wendy K Chung
- Department of Pediatrics, Columbia University Irving Medical Center, NY, New York 10032, USA,Department of Medicine, Columbia University Irving Medical Center, NY, New York 10032, USA
| | | | - Marco Tartaglia
- To whom correspondence should be addressed at: Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy. Tel: +39 06 4990 2866; ; Marco Tartaglia, Genetics and Rare Disease Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, Viale di San Paolo 15, 00146 Rome, Italy. Tel: +39 06 6859 3742;
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22
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Alpízar-Pedraza D, Veulens ADLN, Araujo EC, Piloto-Ferrer J, Sánchez-Lamar Á. Microtubules destabilizing agents binding sites in tubulin. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132723] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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23
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Zeeshan M, Rashpa R, Ferguson DJP, Abel S, Chahine Z, Brady D, Vaughan S, Moores CA, Le Roch KG, Brochet M, Holder AA, Tewari R. Genome-wide functional analysis reveals key roles for kinesins in the mammalian and mosquito stages of the malaria parasite life cycle. PLoS Biol 2022; 20:e3001704. [PMID: 35900985 PMCID: PMC9333250 DOI: 10.1371/journal.pbio.3001704] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 06/10/2022] [Indexed: 11/18/2022] Open
Abstract
Kinesins are microtubule (MT)-based motors important in cell division, motility, polarity, and intracellular transport in many eukaryotes. However, they are poorly studied in the divergent eukaryotic pathogens Plasmodium spp., the causative agents of malaria, which manifest atypical aspects of cell division and plasticity of morphology throughout the life cycle in both mammalian and mosquito hosts. Here, we describe a genome-wide screen of Plasmodium kinesins, revealing diverse subcellular locations and functions in spindle assembly, axoneme formation, and cell morphology. Surprisingly, only kinesin-13 is essential for growth in the mammalian host while the other 8 kinesins are required during the proliferative and invasive stages of parasite transmission through the mosquito vector. In-depth analyses of kinesin-13 and kinesin-20 revealed functions in MT dynamics during apical cell polarity formation, spindle assembly, and axoneme biogenesis. These findings help us to understand the importance of MT motors and may be exploited to discover new therapeutic interventions against malaria.
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Affiliation(s)
- Mohammad Zeeshan
- University of Nottingham, School of Life Sciences, Nottingham, United Kingdom
| | - Ravish Rashpa
- University of Geneva, Faculty of Medicine, Geneva, Switzerland
| | - David J P Ferguson
- Oxford Brookes University, Department of Biological and Medical Sciences, Oxford, United Kingdom
- University of Oxford, John Radcliffe Hospital, Nuffield Department of Clinical Laboratory Science, Oxford, United Kingdom
| | - Steven Abel
- Department of Molecular, Cell and Systems Biology, University of California Riverside, Riverside, California, United States of America
| | - Zeinab Chahine
- Department of Molecular, Cell and Systems Biology, University of California Riverside, Riverside, California, United States of America
| | - Declan Brady
- University of Nottingham, School of Life Sciences, Nottingham, United Kingdom
| | - Sue Vaughan
- Oxford Brookes University, Department of Biological and Medical Sciences, Oxford, United Kingdom
| | - Carolyn A Moores
- Institute of Structural and Molecular Biology, Department of Biological Sciences, Birkbeck College, London, United Kingdom
| | - Karine G Le Roch
- Department of Molecular, Cell and Systems Biology, University of California Riverside, Riverside, California, United States of America
| | - Mathieu Brochet
- University of Geneva, Faculty of Medicine, Geneva, Switzerland
| | - Anthony A Holder
- The Francis Crick Institute, Malaria Parasitology Laboratory, London, United Kingdom
| | - Rita Tewari
- University of Nottingham, School of Life Sciences, Nottingham, United Kingdom
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24
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Tati S, Alisaraie L. Recruitment of dynein and kinesin to viral particles. FASEB J 2022; 36:e22311. [DOI: 10.1096/fj.202101900rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/14/2022] [Accepted: 03/29/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Sayi’Mone Tati
- School of Pharmacy Memorial University of Newfoundland St. John’s Newfoundland Canada
| | - Laleh Alisaraie
- School of Pharmacy Memorial University of Newfoundland St. John’s Newfoundland Canada
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25
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Kinesin spindle protein inhibitors in cancer: from high throughput screening to novel therapeutic strategies. Future Sci OA 2022; 8:FSO778. [PMID: 35251692 PMCID: PMC8890118 DOI: 10.2144/fsoa-2021-0116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 12/14/2021] [Indexed: 11/23/2022] Open
Abstract
Bringing to a halt the cell cycle in mitosis and interfering with its normal progression is one of the most successful anti-cancer strategies used nowadays. Classically, several kinds of anti-cancer drugs like taxanes and vinca alkaloids directly inhibit microtubules during cell division. These drugs exhibit serious side effects, most importantly, severe peripheral neuropathies. Alternatively, KSP inhibitors are grasping a lot of research attention as less toxic mitotic inhibitors. In this review, we track the medicinal chemistry developmental stages of KSP inhibitors. Moreover, we address the challenges that are faced during the development of KSP inhibitor therapy for cancer and future insights for the latest advances in research that are directed to find active KSP inhibitor drugs. Scientists have recognized the importance of selective KSP inhibitors in the early 2000s and so various KSP protein inhibitors have been investigated. Only ten of these have been clinically evaluated for cancer treatment. Ispinesib (SB-715992) and filanesib (Arry-520) were the most promising small molecules in clinical trials against the KSP protein. Many challenges are faced during the development of an active anti-KSP drug; most importantly are the unsatisfactory clinical trial results. Designing dual inhibitors, antibody–drug conjugates, combination therapy and gene therapy approach are among the main strategies that are being investigated nowadays to find new effective KSP inhibitors. The scientific research efforts are still devoted to find an effective and tolerable KSP inhibitor drug that can gain US FDA approval.
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26
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Negative Modulation of the Angiogenic Cascade Induced by Allosteric Kinesin Eg5 Inhibitors in a Gastric Adenocarcinoma In Vitro Model. Molecules 2022; 27:molecules27030957. [PMID: 35164221 PMCID: PMC8840372 DOI: 10.3390/molecules27030957] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/21/2022] [Accepted: 01/27/2022] [Indexed: 12/24/2022] Open
Abstract
Eg5 is a kinesin essential in bipolar spindle formation, overexpressed in tumours, thus representing a new target in cancer therapy. We aimed at evaluating the anti-cancer activity of Eg5 thiadiazoline inhibitors 2 and 41 on gastric adenocarcinoma cells (AGS), focusing on the modulation of angiogenic signalling. Docking studies confirmed a similar interaction with Eg5 to that of the parent compound K858. Thiadiazolines were also tested in combination with Hesperidin (HSD). Cell cycle analysis reveals a reduction of G1 and S phase percentages when 41 is administered as well as HSD in combination with K858. Western blot reveals Eg5 inhibitors capability to reduce PI3K, p-AKT/Akt and p-Erk/Erk expressions; p-Akt/Akt ratio is even more decreased in HSD+2 sample than the p-Erk/Erk ratio in HSD+41 or K858. VEGF expression is reduced when HSD+2 and HSD+41 are administered with respect to compounds alone, after 72 h. ANGPT2 gene expression increases in cells treated with 41 and HSD+2 compared to K858. The wound-healing assay highlights a reduction in the cut in HSD+2 sample compared to 2 and HSD. Thus, Eg5 inhibitors appear to modulate angiogenic signalling by controlling VEGF activity even better if combined with HSD. Overall, Eg5 inhibitors can represent a promising starting point to develop innovative anti-cancer strategies.
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27
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Cocola C, Magnaghi V, Abeni E, Pelucchi P, Martino V, Vilardo L, Piscitelli E, Consiglio A, Grillo G, Mosca E, Gualtierotti R, Mazzaccaro D, La Sala G, Di Pietro C, Palizban M, Liuni S, DePedro G, Morara S, Nano G, Kehler J, Greve B, Noghero A, Marazziti D, Bussolino F, Bellipanni G, D'Agnano I, Götte M, Zucchi I, Reinbold R. Transmembrane Protein TMEM230, a Target of Glioblastoma Therapy. Front Cell Neurosci 2021; 15:703431. [PMID: 34867197 PMCID: PMC8636015 DOI: 10.3389/fncel.2021.703431] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 10/12/2021] [Indexed: 11/13/2022] Open
Abstract
Glioblastomas (GBM) are the most aggressive tumors originating in the brain. Histopathologic features include circuitous, disorganized, and highly permeable blood vessels with intermittent blood flow. These features contribute to the inability to direct therapeutic agents to tumor cells. Known targets for anti-angiogenic therapies provide minimal or no effect in overall survival of 12–15 months following diagnosis. Identification of novel targets therefore remains an important goal for effective treatment of highly vascularized tumors such as GBM. We previously demonstrated in zebrafish that a balanced level of expression of the transmembrane protein TMEM230/C20ORF30 was required to maintain normal blood vessel structural integrity and promote proper vessel network formation. To investigate whether TMEM230 has a role in the pathogenesis of GBM, we analyzed its prognostic value in patient tumor gene expression datasets and performed cell functional analysis. TMEM230 was found necessary for growth of U87-MG cells, a model of human GBM. Downregulation of TMEM230 resulted in loss of U87 migration, substratum adhesion, and re-passaging capacity. Conditioned media from U87 expressing endogenous TMEM230 induced sprouting and tubule-like structure formation of HUVECs. Moreover, TMEM230 promoted vascular mimicry-like behavior of U87 cells. Gene expression analysis of 702 patients identified that TMEM230 expression levels distinguished high from low grade gliomas. Transcriptomic analysis of patients with gliomas revealed molecular pathways consistent with properties observed in U87 cell assays. Within low grade gliomas, elevated TMEM230 expression levels correlated with reduced overall survival independent from tumor subtype. Highest level of TMEM230 correlated with glioblastoma and ATP-dependent microtubule kinesin motor activity, providing a direction for future therapeutic intervention. Our studies support that TMEM230 has both glial tumor and endothelial cell intracellular and extracellular functions. Elevated levels of TMEM230 promote glial tumor cell migration, extracellular scaffold remodeling, and hypervascularization and abnormal formation of blood vessels. Downregulation of TMEM230 expression may inhibit both low grade glioma and glioblastoma tumor progression and promote normalization of abnormally formed blood vessels. TMEM230 therefore is both a promising anticancer and antiangiogenic therapeutic target for inhibiting GBM tumor cells and tumor-driven angiogenesis.
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Affiliation(s)
- Cinzia Cocola
- Institute for Biomedical Technologies, National Research Council, Milan, Italy.,Consorzio Italbiotec, Milan, Italy
| | - Valerio Magnaghi
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - Edoardo Abeni
- Institute for Biomedical Technologies, National Research Council, Milan, Italy
| | - Paride Pelucchi
- Institute for Biomedical Technologies, National Research Council, Milan, Italy
| | - Valentina Martino
- Institute for Biomedical Technologies, National Research Council, Milan, Italy
| | - Laura Vilardo
- Institute for Biomedical Technologies, National Research Council, Milan, Italy
| | - Eleonora Piscitelli
- Institute for Biomedical Technologies, National Research Council, Milan, Italy
| | - Arianna Consiglio
- Institute for Biomedical Technologies, National Research Council, Milan, Italy
| | - Giorgio Grillo
- Institute for Biomedical Technologies, National Research Council, Milan, Italy
| | - Ettore Mosca
- Institute for Biomedical Technologies, National Research Council, Milan, Italy
| | - Roberta Gualtierotti
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Daniela Mazzaccaro
- Operative Unit of Vascular Surgery, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Gina La Sala
- Institute of Biochemistry and Cell Biology, Italian National Research Council, Rome, Italy
| | - Chiara Di Pietro
- Institute of Biochemistry and Cell Biology, Italian National Research Council, Rome, Italy
| | - Mira Palizban
- Department of Gynecology and Obstetrics, University Hospital of Münster, Münster, Germany
| | - Sabino Liuni
- Institute for Biomedical Technologies, National Research Council, Milan, Italy
| | - Giuseppina DePedro
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | | | - Giovanni Nano
- Operative Unit of Vascular Surgery, IRCCS Policlinico San Donato, San Donato Milanese, Italy.,Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - James Kehler
- National Institutes of Health, NIDDK, Laboratory of Cell and Molecular Biology, Bethesda, MD, United States
| | - Burkhard Greve
- Department of Radiation Therapy and Radiation Oncology, University Hospital of Münster, Münster, Germany
| | - Alessio Noghero
- Lovelace Biomedical Research Institute, Albuquerque, NM, United States.,Department of Oncology, University of Turin, Orbassano, Italy
| | - Daniela Marazziti
- Institute of Biochemistry and Cell Biology, Italian National Research Council, Rome, Italy
| | - Federico Bussolino
- Department of Oncology, University of Turin, Orbassano, Italy.,Laboratory of Vascular Oncology Candiolo Cancer Institute - IRCCS, Candiolo, Italy
| | - Gianfranco Bellipanni
- Department of Biology, Center for Biotechnology, Sbarro Institute for Cancer Research and Molecular Medicine, Temple University, Philadelphia, PA, United States
| | - Igea D'Agnano
- Institute for Biomedical Technologies, National Research Council, Milan, Italy
| | - Martin Götte
- Department of Gynecology and Obstetrics, University Hospital of Münster, Münster, Germany
| | - Ileana Zucchi
- Institute for Biomedical Technologies, National Research Council, Milan, Italy
| | - Rolland Reinbold
- Institute for Biomedical Technologies, National Research Council, Milan, Italy
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28
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Wang H, Sun J, Yang F, Weng Y, Chen P, Du S, Wei A, Li Y. CsKTN1 for a katanin p60 subunit is associated with the regulation of fruit elongation in cucumber (Cucumis sativus L.). TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2021; 134:2429-2441. [PMID: 34043036 DOI: 10.1007/s00122-021-03833-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 04/03/2021] [Indexed: 06/12/2023]
Abstract
We identified a short fruit3 (sf3) mutant in cucumber. Map-based cloning revealed that CsKTN1 gene encodes a katanin p60 subunit, which is associated with the regulation of fruit elongation. Fruit length is an important horticultural trait for both fruit yield and quality of cucumber (Cucumis sativus L.). Knowledge on the molecular regulation of fruit elongation in cucumber is very limited. In this study, we identified and characterized a cucumber short fruit3 (sf3) mutant. Histological examination indicated that the shorter fruit in the mutant was due to reduced cell numbers. Genetic analysis revealed that the phenotype of the sf3 mutant was controlled by a single gene with semi-dominant inheritance. By map-based cloning and Arabidopsis genetic transformation, we showed that Sf3 was a homolog of KTN1 (CsKTN1) encoding a katanin p60 subunit. A non-synonymous mutation in the fifth exon of CsKTN1 resulted in an amino acid substitution from Serine in the wild type to Phenylalanine in the sf3 mutant. CsKTN1 expressed in all tissues of both the wild type and the sf3 mutant. However, there was no significant difference in CsKTN1 expression levels between the wild type and the sf3 mutant. The hormone quantitation and RNA-seq analysis suggested that auxin and gibberellin contents are decreased in sf3 by changing the expression levels of genes related with auxin and gibberellin metabolism and signaling. This work helps understand the function of the katanin and the molecular mechanisms of fruit growth regulation in cucumber.
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Affiliation(s)
- Hui Wang
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Jing Sun
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Fan Yang
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yiqun Weng
- Horticulture Department, USDA-ARS Vegetable Crops Research Unit, University of Wisconsin, Madison, WI, 53706, USA
| | - Peng Chen
- College of Life Science, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Shengli Du
- Tianjin Vegetable Research Center, Tianjin, 300192, China
- National Key Laboratory of Vegetable Germplasm Innovation, Tianjin, 300192, China
| | - Aimin Wei
- Tianjin Vegetable Research Center, Tianjin, 300192, China.
- National Key Laboratory of Vegetable Germplasm Innovation, Tianjin, 300192, China.
| | - Yuhong Li
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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29
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Sabnis RW. Novel Amide Compounds as KIF18A Inhibitors for Treating Cancer. ACS Med Chem Lett 2021; 12:690-691. [PMID: 34055211 DOI: 10.1021/acsmedchemlett.1c00206] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Indexed: 11/29/2022] Open
Affiliation(s)
- Ram W. Sabnis
- Smith, Gambrell & Russell LLP, 1230 Peachtree Street NE, Suite 3100, Atlanta, Georgia 30309, United States
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30
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Wu S, Lv L, Li L, Wang L, Mao B, Li J, Shen X, Ge R, Wong CKC, Sun F, Cheng CY. KIF15 supports spermatogenesis via its effects on Sertoli cell microtubule, actin, vimentin, and septin cytoskeletons. Endocrinology 2021; 162:6102572. [PMID: 33453102 PMCID: PMC7883770 DOI: 10.1210/endocr/bqab010] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Indexed: 01/09/2023]
Abstract
Throughout spermatogenesis, cellular cargoes including haploid spermatids are required to be transported across the seminiferous epithelium, either toward the microtubule (MT) plus (+) end near the basement membrane at stage V, or to the MT minus (-) end near the tubule lumen at stages VI to VIII of the epithelial cycle. Furthermore, preleptotene spermatocytes, differentiated from type B spermatogonia, are transported across the Sertoli cell blood-testis barrier (BTB) to enter the adluminal compartment. Few studies, however, have been conducted to explore the function of MT-dependent motor proteins to support spermatid transport during spermiogenesis. Herein, we examined the role of MT-dependent and microtubule plus (+) end-directed motor protein kinesin 15 (KIF15) in the testis. KIF15 displayed a stage-specific expression across the seminiferous epithelium, associated with MTs, and appeared as aggregates on the MT tracks that aligned perpendicular to the basement membrane and laid across the entire epithelium. KIF15 also tightly associated with apical ectoplasmic specialization, displaying strict stage-specific distribution, apparently to support spermatid transport across the epithelium. We used a loss-of-function approach by RNAi to examine the role of KIF15 in Sertoli cell epithelium in vitro to examine its role in cytoskeletal-dependent Sertoli cell function. It was noted that KIF15 knockdown by RNAi that reduced KIF15 expression by ~70% in Sertoli cells with an established functional tight junction barrier impeded the barrier function. This effect was mediated through remarkable changes in the cytoskeletal organization of MTs, but also actin-, vimentin-, and septin-based cytoskeletons, illustrating that KIF15 exerts its regulatory effects well beyond microtubules.
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Affiliation(s)
- Siwen Wu
- The Second Affiliated Hospital and Yuying Children’s Hospital, Department of Anesthesiology, Wenzhou Medical University, Wenzhou, Zhejiang, China
- The Mary M. Wohlford Laboratory for Male Contraceptive Research, Center for Biomedical Research, Population Council, New York, NY, USA
| | - Lixiu Lv
- The Second Affiliated Hospital and Yuying Children’s Hospital, Department of Anesthesiology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Linxi Li
- The Second Affiliated Hospital and Yuying Children’s Hospital, Department of Anesthesiology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lingling Wang
- Institute of Reproductive Medicine, Nantong University School of Medicine, Nantong, Jiangsu, China
| | - Baiping Mao
- The Second Affiliated Hospital and Yuying Children’s Hospital, Department of Anesthesiology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jun Li
- The Second Affiliated Hospital and Yuying Children’s Hospital, Department of Anesthesiology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xian Shen
- The Second Affiliated Hospital and Yuying Children’s Hospital, Department of Anesthesiology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Renshan Ge
- The Second Affiliated Hospital and Yuying Children’s Hospital, Department of Anesthesiology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chris K C Wong
- Croucher Institute for Environmental Sciences, Department of Biology, Hong Kong Baptist University, Kowloon, Hong Kong, China
| | - Fei Sun
- Institute of Reproductive Medicine, Nantong University School of Medicine, Nantong, Jiangsu, China
| | - C Yan Cheng
- The Second Affiliated Hospital and Yuying Children’s Hospital, Department of Anesthesiology, Wenzhou Medical University, Wenzhou, Zhejiang, China
- The Mary M. Wohlford Laboratory for Male Contraceptive Research, Center for Biomedical Research, Population Council, New York, NY, USA
- Institute of Reproductive Medicine, Nantong University School of Medicine, Nantong, Jiangsu, China
- Correspondence: C. Yan Cheng, Ph.D., Senior Scientist, The Mary M. Wohlford Laboratory for Male Contraceptive Research, Center for Biomedical Research, Population Council, 1230 York Ave, New York, NY 10065, USA.
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31
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Sabnis RW. Novel KIF18A Inhibitors for Treating Cancer. ACS Med Chem Lett 2020; 11:2368-2369. [PMID: 33335656 DOI: 10.1021/acsmedchemlett.0c00592] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Indexed: 12/20/2022] Open
Affiliation(s)
- Ram W. Sabnis
- Smith, Gambrell & Russell LLP, 1230 Peachtree Street NE, Suite 3100, Atlanta, Georgia 30309, United States
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