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Journal articles on the topic 'Crawling motility'

Author: Grafiati

Published: 14 March 2023

Last updated: 31 July 2025

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1

Recho, Pierre, Thibaut Putelat, and Lev Truskinovsky. "Mechanics of motility initiation and motility arrest in crawling cells." Journal of the Mechanics and Physics of Solids 84 (November 2015): 469–505. http://dx.doi.org/10.1016/j.jmps.2015.08.006.

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2

Yamasaki, Akira, Michiyo Suzuki, Tomoo Funayama, et al. "High-Dose Irradiation Inhibits Motility and Induces Autophagy in Caenorhabditis elegans." International Journal of Molecular Sciences 22, no. 18 (2021): 9810. http://dx.doi.org/10.3390/ijms22189810.

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Radiation damages many cellular components and disrupts cellular functions, and was previously reported to impair locomotion in the model organism Caenorhabditis elegans. However, the response to even higher doses is not clear. First, to investigate the effects of high-dose radiation on the locomotion of C. elegans, we investigated the dose range that reduces whole-body locomotion or leads to death. Irradiation was performed in the range of 0–6 kGy. In the crawling analysis, motility decreased after irradiation in a dose-dependent manner. Exposure to 6 kGy of radiation affected crawling on aga

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3

Alteraifi, A. M., and D. V. Zhelev. "Transient increase of free cytosolic calcium during neutrophil motility responses." Journal of Cell Science 110, no. 16 (1997): 1967–77. http://dx.doi.org/10.1242/jcs.110.16.1967.

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The release of free cytosolic calcium is a secondary messenger for many cell functions. Here we study the coupling between the release of intracellular calcium and motility responses of the human neutrophil. Two groups of motility responses are studied: motility responses in the presence of adhesion, such as cell crawling and phagocytosis, and motility responses ‘in suspension’, such as pseudopod formation. The motility responses are stimulated by the chemoattractant N-formyl-methionyl-leucyl-phenylalanine (fMLP) and the release of calcium is monitored by measuring the fluorescence from fluo-3

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4

Mai, Melissa H., and Brian A. Camley. "Hydrodynamic effects on the motility of crawling eukaryotic cells." Soft Matter 16, no. 5 (2020): 1349–58. http://dx.doi.org/10.1039/c9sm01797f.

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5

Barton, Daniel L., Yow-Ren Chang, William Ducker, and Jure Dobnikar. "Data–driven modelling makes quantitative predictions regarding bacteria surface motility." PLOS Computational Biology 20, no. 5 (2024): e1012063. http://dx.doi.org/10.1371/journal.pcbi.1012063.

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In this work, we quantitatively compare computer simulations and existing cell tracking data of P. aeruginosa surface motility in order to analyse the underlying motility mechanism. We present a three dimensional twitching motility model, that simulates the extension, retraction and surface association of individual Type IV Pili (TFP), and is informed by recent experimental observations of TFP. Sensitivity analysis is implemented to minimise the number of model parameters, and quantitative estimates for the remaining parameters are inferred from tracking data by approximate Bayesian computatio

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6

Bottino, Dean, Alexander Mogilner, Tom Roberts, Murray Stewart, and George Oster. "How nematode sperm crawl." Journal of Cell Science 115, no. 2 (2002): 367–84. http://dx.doi.org/10.1242/jcs.115.2.367.

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Sperm of the nematode, Ascaris suum, crawl using lamellipodial protrusion, adhesion and retraction, a process analogous to the amoeboid motility of other eukaryotic cells. However, rather than employing an actin cytoskeleton to generate locomotion, nematode sperm use the major sperm protein (MSP). Moreover, nematode sperm lack detectable molecular motors or the battery of actin-binding proteins that characterize actin-based motility. The Ascaris system provides a simple ‘stripped down’ version of a crawling cell in which to examine the basic mechanism of cell locomotion independently of other

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7

Boscacci, Rémy T., Friederike Pfeiffer, Kathrin Gollmer, et al. "Comprehensive analysis of lymph node stroma-expressed Ig superfamily members reveals redundant and nonredundant roles for ICAM-1, ICAM-2, and VCAM-1 in lymphocyte homing." Blood 116, no. 6 (2010): 915–25. http://dx.doi.org/10.1182/blood-2009-11-254334.

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Abstract Although it is well established that stromal intercellular adhesion molecule-1 (ICAM-1), ICAM-2, and vascular cell adhesion molecule-1 (VCAM-1) mediate lymphocyte recruitment into peripheral lymph nodes (PLNs), their precise contributions to the individual steps of the lymphocyte homing cascade are not known. Here, we provide in vivo evidence for a selective function for ICAM-1 > ICAM-2 > VCAM-1 in lymphocyte arrest within noninflamed PLN microvessels. Blocking all 3 CAMs completely inhibited lymphocyte adhesion within PLN high endothelial venules (HEVs). Postarrest extravasatio

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8

Paoletti, P., and L. Mahadevan. "A proprioceptive neuromechanical theory of crawling." Proceedings of the Royal Society B: Biological Sciences 281, no. 1790 (2014): 20141092. http://dx.doi.org/10.1098/rspb.2014.1092.

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The locomotion of many soft-bodied animals is driven by the propagation of rhythmic waves of contraction and extension along the body. These waves are classically attributed to globally synchronized periodic patterns in the nervous system embodied in a central pattern generator (CPG). However, in many primitive organisms such as earthworms and insect larvae, the evidence for a CPG is weak, or even non-existent. We propose a neuromechanical model for rhythmically coordinated crawling that obviates the need for a CPG, by locally coupling the local neuro-muscular dynamics in the body to the mecha

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9

Nakamura, Shuichi. "Motility of the Zoonotic Spirochete Leptospira: Insight into Association with Pathogenicity." International Journal of Molecular Sciences 23, no. 3 (2022): 1859. http://dx.doi.org/10.3390/ijms23031859.

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If a bacterium has motility, it will use the ability to survive and thrive. For many pathogenic species, their motilities are a crucial virulence factor. The form of motility varies among the species. Some use flagella for swimming in liquid, and others use the cell-surface machinery to move over solid surfaces. Spirochetes are distinguished from other bacterial species by their helical or flat wave morphology and periplasmic flagella (PFs). It is believed that the rotation of PFs beneath the outer membrane causes transformation or rolling of the cell body, propelling the spirochetes. Interest

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10

Mai, Melissa H., and Brian A. Camley. "Transition between Swimming and Crawling: A Model of Eukaryotic Cell Motility." Biophysical Journal 116, no. 3 (2019): 546a. http://dx.doi.org/10.1016/j.bpj.2018.11.2938.

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11

Ehrengruber, M. U., D. A. Deranleau, and T. D. Coates. "Shape oscillations of human neutrophil leukocytes: characterization and relationship to cell motility." Journal of Experimental Biology 199, no. 4 (1996): 741–47. http://dx.doi.org/10.1242/jeb.199.4.741.

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When neutrophil leukocytes are stimulated by chemotactic factors or by substratum contact, they change their shape. Shape changes are a prerequisite for cellular migration and typically involve the extrusion of thin, veil-like lamellipods and the development of morphological polarity. Stimulation also leads to changes in the neutrophil content of filamentous actin (F-actin), which is the major cytoskeletal component. Suspensions of human neutrophils stimulated with chemoattractants exhibit sinusoidal light-scattering oscillations with a period of approximately 8 s at 37 degrees C. These oscill

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12

Tahara, Hajime, Kyosuke Takabe, Yuya Sasaki, et al. "The mechanism of two-phase motility in the spirochete Leptospira : Swimming and crawling." Science Advances 4, no. 5 (2018): eaar7975. http://dx.doi.org/10.1126/sciadv.aar7975.

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13

Cucchi, Alessandro, Antoine Mellet, and Nicolas Meunier. "Self polarization and traveling wave in a model for cell crawling migration." Discrete & Continuous Dynamical Systems 42, no. 5 (2022): 2381. http://dx.doi.org/10.3934/dcds.2021194.

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<p style='text-indent:20px;'>In this paper, we prove the existence of traveling wave solutions for an incompressible Darcy's free boundary problem recently introduced in [<xref ref-type="bibr" rid="b6">6</xref>] to describe cell motility. This free boundary problem involves a nonlinear destabilizing term in the boundary condition which describes the active character of the cell cytoskeleton. By using two different methods, a constructive method via a graph analysis and a local bifurcation method, we prove that traveling wave solutions exist when the destabilizing term is stro

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14

DeSimone, Antonio, and Giancarlo Cicconofri. "Swimming and crawling motility at microscopic scales: from biological templates to bio-inspired devices." IFAC-PapersOnLine 48, no. 1 (2015): 825–26. http://dx.doi.org/10.1016/j.ifacol.2015.05.179.

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15

Fritz-Laylin, Lillian K., Samuel J. Lord, and R. Dyche Mullins. "WASP and SCAR are evolutionarily conserved in actin-filled pseudopod-based motility." Journal of Cell Biology 216, no. 6 (2017): 1673–88. http://dx.doi.org/10.1083/jcb.201701074.

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Diverse eukaryotic cells crawl through complex environments using distinct modes of migration. To understand the underlying mechanisms and their evolutionary relationships, we must define each mode and identify its phenotypic and molecular markers. In this study, we focus on a widely dispersed migration mode characterized by dynamic actin-filled pseudopods that we call “α-motility.” Mining genomic data reveals a clear trend: only organisms with both WASP and SCAR/WAVE—activators of branched actin assembly—make actin-filled pseudopods. Although SCAR has been shown to drive pseudopod formation,

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16

Small, J. Victor, Kurt Anderson, and Klemens Rottner. "Actin and the coordination of protrusion, attachment and retraction in cell crawling." Bioscience Reports 16, no. 5 (1996): 351–68. http://dx.doi.org/10.1007/bf01207261.

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To crawl over a substrate a cell must first protrude in front, establish new attachments to the substrate and then retract its rear. Protrusion and retraction utilise different subcompartments of the actin cytoskeleton and operate by different mechanisms, one involving actin polymerization and the other myosin-based contraction. Using as examples the rapidly locomoting keratocyte and the slowly moving fibroblast we illustrate how over expression of one or the other actin subcompartments leads to the observed differences in motility. We also propose, that despite these differences there is a co

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17

Rafelski, Susanne M., and Julie A. Theriot. "Crawling Toward a Unified Model of Cell Motility: Spatial and Temporal Regulation of Actin Dynamics." Annual Review of Biochemistry 73, no. 1 (2004): 209–39. http://dx.doi.org/10.1146/annurev.biochem.73.011303.073844.

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18

Ziebert, Falko, and Igor S. Aranson. "Effects of Adhesion Dynamics and Substrate Compliance on the Shape and Motility of Crawling Cells." PLoS ONE 8, no. 5 (2013): e64511. http://dx.doi.org/10.1371/journal.pone.0064511.

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19

MYERS, REED A., CAROLYN M. FURLONG, MURRAY K. GINGRAS, and JOHN-PAUL ZONNEVELD. "LOCOMOTION TRACES EMPLACED BY MODERN STALKLESS COMATULID CRINOIDS (FEATHERSTARS)." Palaios 38, no. 11 (2023): 474–89. http://dx.doi.org/10.2110/palo.2022.007.

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Abstract Modern crinoids have the ability to use their arms to crawl along the sea floor and some are capable of swimming short distances. The first and only evidence of crinoid locomotion reported from the rock record was described from the Middle Jurassic of the Cabeço da Ladeira Lagerstätte (Portugal) resulting in description of the ichnotaxon Krinodromos bentou. Although the mechanics of crinoid movement are well documented the morphological ranges of crinoid motility tracks are unknown. This study uses observations of crinoid movement and their effects on sediment using modern comatulid c

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20

MYERS, REED A., CAROLYN M. FURLONG, MURRAY K. GINGRAS, and JOHN-PAUL ZONNEVELD. "LOCOMOTION TRACES EMPLACED BY MODERN STALKLESS COMATULID CRINOIDS (FEATHERSTARS)." Palaios 38, no. 11 (2023): 474–89. http://dx.doi.org/10.2110/palo.2023.007.

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Abstract Modern crinoids have the ability to use their arms to crawl along the sea floor and some are capable of swimming short distances. The first and only evidence of crinoid locomotion reported from the rock record was described from the Middle Jurassic of the Cabeço da Ladeira Lagerstätte (Portugal) resulting in description of the ichnotaxon Krinodromos bentou. Although the mechanics of crinoid movement are well documented the morphological ranges of crinoid motility tracks are unknown. This study uses observations of crinoid movement and their effects on sediment using modern comatulid c

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21

Volkov, Yuri, Aideen Long та Dermot Kelleher. "Inside the Crawling T Cell: Leukocyte Function-Associated Antigen-1 Cross-Linking Is Associated with Microtubule-Directed Translocation of Protein Kinase C Isoenzymes β(I) and δ". Journal of Immunology 161, № 12 (1998): 6487–95. http://dx.doi.org/10.4049/jimmunol.161.12.6487.

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Abstract T cells activated via integrin receptors can polarize and start crawling locomotion with repeated cycles of cytoskeletal reassembly processes, many of which depend on phosphorylation. We demonstrate that protein kinase C (PKC) activation represents an essential event in induction of active T cell motility. We find that in crawling T cells triggered via cross-linking of integrin LFA-1 two PKC isoenzymes, β(I) and δ, are targeted to the cytoskeleton with specific localization corresponding to the microtubule-organizing center (MTOC) and microtubules, as detected by immunocytochemistry a

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22

Zhang, Shun, Danielle Skinner, Prateek Joshi, et al. "Quantifying the mechanics of locomotion of the schistosome pathogen with respect to changes in its physical environment." Journal of The Royal Society Interface 16, no. 150 (2019): 20180675. http://dx.doi.org/10.1098/rsif.2018.0675.

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Schistosomiasis is a chronic and morbid disease of poverty affecting approximately 200 million people worldwide. Mature schistosome flatworms wander in the host's hepatic portal and mesenteric venous system where they encounter a range of blood flow conditions and geometrical confinement. However, the mechanisms that support schistosome locomotion and underlie the pathogen's adaptation to its physical environment are largely unknown. By combining microfabrication and traction force microscopy, we developed various in vitro assays to quantify the mechanics of locomotion of adult male Schistosom

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23

Yi, Kexi, Xu Wang, Mark R. Emmett, Alan G. Marshall, Murray Stewart, and Thomas M. Roberts. "Dephosphorylation of Major Sperm Protein (MSP) Fiber Protein 3 by Protein Phosphatase 2A during Cell Body Retraction in the MSP-based Amoeboid Motility of Ascaris Sperm." Molecular Biology of the Cell 20, no. 14 (2009): 3200–3208. http://dx.doi.org/10.1091/mbc.e09-03-0240.

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The crawling movement of nematode sperm requires coordination of leading edge protrusion with cell body retraction, both of which are powered by modulation of a cytoskeleton based on major sperm protein (MSP) filaments. We used a cell-free in vitro motility system in which both protrusion and retraction can be reconstituted, to identify two proteins involved in cell body retraction. Pharmacological and depletion-add back assays showed that retraction was triggered by a putative protein phosphatase 2A (PP2A, a Ser/Thr phosphatase activated by tyrosine dephosphorylation). Immunofluorescence show

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24

Opas, Michal. "Cellular adhesiveness, contractility, and traction: stick, grip, and slip control." Biochemistry and Cell Biology 73, no. 7-8 (1995): 311–16. http://dx.doi.org/10.1139/o95-039.

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Translocation of cells over solid substrata depends on generation of motive force, in crawling tissue cells, brought about by regulated contractility of intracellular actomyosin. Intracellular contractile machinery has a direct, structural connection to the cell surface. Hence, regulated adhesiveness of the cell surface provides a mechanism whereby a cell can fine tune the extent of tractional forces that are necessary for effective translocation. Cells are able to control adhesiveness of surfaces (stick), contractility (grip), and the extent of traction exerted on the substratum (slip). Here,

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25

Sepsenwol, S., H. Ris, and T. M. Roberts. "A unique cytoskeleton associated with crawling in the amoeboid sperm of the nematode, Ascaris suum." Journal of Cell Biology 108, no. 1 (1989): 55–66. http://dx.doi.org/10.1083/jcb.108.1.55.

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Nematode sperm extend pseudopods and pull themselves over substrates. They lack an axoneme or the actin and myosins of other types of motile cells, but their pseudopods contain abundant major sperm protein (MSP), a family of 14-kD polypeptides found exclusively in male gametes. Using high voltage electron microscopy, a unique cytoskeleton was discovered in the pseudopod of in vitro-activated, crawling sperm of the pig intestinal nematode Ascaris suum. It consists of 5-10-nm fuzzy fibers organized into 150-250-nm-thick fiber complexes, which connect to each of the moving pseudopodial membrane p

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Buttery, Shawnna M., Gail C. Ekman, Margaret Seavy, Murray Stewart, and Thomas M. Roberts. "Dissection of the Ascaris Sperm Motility Machinery Identifies Key Proteins Involved in Major Sperm Protein-based Amoeboid Locomotion." Molecular Biology of the Cell 14, no. 12 (2003): 5082–88. http://dx.doi.org/10.1091/mbc.e03-04-0246.

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Although Ascaris sperm motility closely resembles that seen in many other types of crawling cells, the lamellipodial dynamics that drive movement result from modulation of a cytoskeleton based on the major sperm protein (MSP) rather than actin. The dynamics of the Ascaris sperm cytoskeleton can be studied in a cell-free in vitro system based on the movement of plasma membrane vesicles by fibers constructed from bundles of MSP filaments. In addition to ATP, MSP, and a plasma membrane protein, reconstitution of MSP motility in this cell-free extract requires cytosolic proteins that orchestrate t

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27

Alama-Bermejo, Gema, Astrid S. Holzer, and Jerri L. Bartholomew. "Myxozoan Adhesion and Virulence: Ceratonova shasta on the Move." Microorganisms 7, no. 10 (2019): 397. http://dx.doi.org/10.3390/microorganisms7100397.

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Motility factors are fundamental for parasite invasion, migration, proliferation and immune evasion and thus can influence parasitic disease pathogenesis and virulence. Salmonid enteronecrosis is caused by a myxozoan (Phylum Cnidarian) parasite, Ceratonova shasta. Three parasite genotypes (0, I, II) occur, with varying degrees of virulence in its host, making it a good model for examining the role of motility in virulence. We compare C. shasta cell motility between genotypes and describe how the cellular protrusions interact with the host. We support these observations with motility gene expre

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Butte, Manish, and Tim Thauland. "The actin capping protein alpha-adducin is required for CD28 costimulation (IRM12P.658)." Journal of Immunology 194, no. 1_Supplement (2015): 133.17. http://dx.doi.org/10.4049/jimmunol.194.supp.133.17.

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Abstract Alpha-adducin (Add1) is a critical component of the actin-spectrin network, acting to cap the barbed ends of actin filaments, and recruiting spectrin to these junctions. Add1 is expressed at high levels in naïve T cells and is down-modulated upon TCR stimulation, but the role that Add1 plays in the cytoskeletal rearrangements that occur in motile T cells and during immunological synapse formation have not been investigated. Using CD4 T cells from knockout mice, we show that Add1 is necessary for complete activation of T cells in response to low levels of antigen, as measured by prolif

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Waite, Janelle, Ingrid Leiner, Peter Lauer, et al. "Intravital imaging of lymphocyte dynamics and signaling during immune Response to Listeria infection in the spleen (37.31)." Journal of Immunology 184, no. 1_Supplement (2010): 37.31. http://dx.doi.org/10.4049/jimmunol.184.supp.37.31.

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Abstract T cells play a major role in the adaptive immune response. T cells are primed by professional antigen presenting cells (APC), frequently dendritic cells (DC). T-DC interactions occur in lymphoid tissue where T cells are highly motile. Activation of the T cell receptor by cognate antigen triggers arrest in motility to allow stable and specialized contact with APC, termed the immunological synapse. Signaling that initiates and maintains stable T-DC contact has yet to be fully characterized. We employed intravital microscopy to image lymphocyte dynamics in the spleen, a major secondary l

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Tal, Orna, Hwee Ying Lim, Irina Gurevich, et al. "DC mobilization from the skin requires docking to immobilized CCL21 on lymphatic endothelium and intralymphatic crawling." Journal of Experimental Medicine 208, no. 10 (2011): 2141–53. http://dx.doi.org/10.1084/jem.20102392.

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Dendritic cells (DCs) must travel through lymphatics to carry skin antigens into lymph nodes. The processes controlling their mobilization and migration have not been completely delineated. We studied how DCs in live mice respond to skin inflammation, transmigrate through lymphatic endothelium, and propagate in initial lymphatics. At steady state, dermal DCs remain sessile along blood vessels. Inflammation mobilizes them, accelerating their interstitial motility 2.5-fold. CCR7-deficient BMDCs crawl as fast as wild-type DCs but less persistently. We observed discrete depositions of CCL21 comple

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Stramer, Brian, Will Wood, Michael J. Galko, et al. "Live imaging of wound inflammation in Drosophila embryos reveals key roles for small GTPases during in vivo cell migration." Journal of Cell Biology 168, no. 4 (2005): 567–73. http://dx.doi.org/10.1083/jcb.200405120.

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Aa robust inflammatory response to tissue damage and infection is conserved across almost all animal phyla. Neutrophils and macrophages, or their equivalents, are drawn to the wound site where they engulf cell and matrix debris and release signals that direct components of the repair process. This orchestrated cell migration is clinically important, and yet, to date, leukocyte chemotaxis has largely been studied in vitro. Here, we describe a genetically tractable in vivo wound model of inflammation in the Drosophila melanogaster embryo that is amenable to cinemicroscopy. For the first time, we

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32

Schindler, Daniel, Ted Moldenhawer, Carsten Beta, Wilhelm Huisinga, and Matthias Holschneider. "Three-component contour dynamics model to simulate and analyze amoeboid cell motility in two dimensions." PLOS ONE 19, no. 1 (2024): e0297511. http://dx.doi.org/10.1371/journal.pone.0297511.

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Amoeboid cell motility is relevant in a wide variety of biomedical processes such as wound healing, cancer metastasis, and embryonic morphogenesis. It is characterized by pronounced changes of the cell shape associated with expansions and retractions of the cell membrane, which result in a crawling kind of locomotion. Despite existing computational models of amoeboid motion, the inference of expansion and retraction components of individual cells, the corresponding classification of cells, and the a priori specification of the parameter regime to achieve a specific motility behavior remain cha

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33

Adachi, Taiji, Kennedy O. Okeyo, Yoshimichi Shitagawa, and Masaki Hojo. "2P254 Strain Field Measurement of Cytoskeletal Actin Network in Lamellipodia of Crawling Fish Keratocytes(39. Cell motility,Poster Session,Abstract,Meeting Program of EABS & BSJ 2006)." Seibutsu Butsuri 46, supplement2 (2006): S359. http://dx.doi.org/10.2142/biophys.46.s359_2.

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34

Tarr, D. E. K., and Alan L. Scott. "MSP domain protein-1 from Ascaris suum and its possible role in the regulation of major sperm protein-based crawling motility." Molecular and Biochemical Parasitology 143, no. 2 (2005): 165–72. http://dx.doi.org/10.1016/j.molbiopara.2005.05.013.

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35

BIGNOLD, L. "Crawling-like movements of polymorphonuclear leukocytes in plasma are not a good index of their motility in microporous cellulose acetate membrane." Cell Biology International Reports 10, no. 7 (1986): 535–43. http://dx.doi.org/10.1016/0309-1651(86)90028-7.

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36

Verkhovsky, Alexander B., Oleg Y. Chaga, Sébastien Schaub, Tatyana M. Svitkina, Jean-Jacques Meister, and Gary G. Borisy. "Orientational Order of the Lamellipodial Actin Network as Demonstrated in Living Motile Cells." Molecular Biology of the Cell 14, no. 11 (2003): 4667–75. http://dx.doi.org/10.1091/mbc.e02-10-0630.

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Lamellipodia of crawling cells represent both the motor for cell advance and the primary building site for the actin cytoskeleton. The organization of actin in the lamellipodium reflects actin dynamics and is of critical importance for the mechanism of cell motility. In previous structural studies, the lamellipodial actin network was analyzed primarily by electron microscopy (EM). An understanding of lamellipodial organization would benefit significantly if the EM data were complemented and put into a kinetic context by establishing correspondence with structural features observable at the lig

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37

Soll, David R., Deborah Wessels, Paul J. Heid, and Edward Voss. "Computer-Assisted Reconstruction and Motion Analysis of the Three-Dimensional Cell." Scientific World JOURNAL 3 (2003): 827–41. http://dx.doi.org/10.1100/tsw.2003.70.

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Even though several microscopic techniques provide three-dimensional (3D) information on fixed and living cells, the perception persists that cells are two-dimensional (2D). Cells are, in fact, 3D and their behavior, including the extension of pseudopods, includes an important 3D component. Although treating the cell as a 2D entity has proven effective in understanding how cells locomote, and in identifying defects in a variety of mutant and abnormal cells, there are cases in which 3D reconstruction and analysis are essential. Here, we describe advanced computer-assisted 3D reconstruction and

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Wessels, D., J. Reynolds, O. Johnson, et al. "Clathrin plays a novel role in the regulation of cell polarity, pseudopod formation, uropod stability and motility in Dictyostelium." Journal of Cell Science 113, no. 1 (2000): 21–36. http://dx.doi.org/10.1242/jcs.113.1.21.

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Although the traditional role of clathrin has been in vesicle trafficking and the internalization of receptors, a novel role in cytokinesis was recently revealed in an analysis of a clathrin-minus Dictyostelium mutant (chc(-)). chc(-) cells grown in suspension were demonstrated to be defective in assembling myosin II into a normal contractile ring. To test whether this defect reflected a more general one of cytoskeletal dysfunction, chc(-) cells were analyzed for cell polarity, pseudopod formation, uropod stability, cell locomotion, chemotaxis, cytoskeletal organization and vesicle movement. c

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39

Yi, Kexi, Shawnna M. Buttery, Murray Stewart, and Thomas M. Roberts. "A Ser/Thr Kinase Required for Membrane-associated Assembly of the Major Sperm Protein Motility Apparatus in the Amoeboid Sperm of Ascaris." Molecular Biology of the Cell 18, no. 5 (2007): 1816–25. http://dx.doi.org/10.1091/mbc.e06-08-0741.

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Leading edge protrusion in the amoeboid sperm of Ascaris suum is driven by the localized assembly of the major sperm protein (MSP) cytoskeleton in the same way that actin assembly powers protrusion in other types of crawling cell. Reconstitution of this process in vitro led to the identification of two accessory proteins required for MSP polymerization: an integral membrane phosphoprotein, MSP polymerization–organizing protein (MPOP), and a cytosolic component, MSP fiber protein 2 (MFP2). Here, we identify and characterize a 34-kDa cytosolic protein, MSP polymerization–activating kinase (MPAK)

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40

Biesieda, Volodymyr. "Peculiarities of the mental and motility state of the children suffering from mental retardation and postural disorders." Scientific bulletin of South Ukrainian National Pedagogical University named after K. D. Ushynsky 2020, no. 4 (133) (2020): 56–63. http://dx.doi.org/10.24195/2617-6688-2020-4-7.

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Nowadays, there are numerous scientific reviews and studies devoted to the problem of psychomotor retardation of children of different ages. Though, a comprehensive solution of how to identify psychophysical characteristics demonstrated by this category of small children suffering from postural disorders has not made yet. The goal of our research was to identify features of the mental and motility state of small children suffering from psychomotor retardation and postural disorders. Summarising the research performed, these conclusions have been made: The children demonstrating psychomotor ret

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Estin, Miriam L., Scott B. Thompson, Brianna Traxinger, Marlie H. Fisher, Rachel S. Friedman, and Jordan Jacobelli. "Ena/VASP proteins regulate activated T-cell trafficking by promoting diapedesis during transendothelial migration." Proceedings of the National Academy of Sciences 114, no. 14 (2017): E2901—E2910. http://dx.doi.org/10.1073/pnas.1701886114.

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Vasodilator-stimulated phosphoprotein (VASP) and Ena-VASP–like (EVL) are cytoskeletal effector proteins implicated in regulating cell morphology, adhesion, and migration in various cell types. However, the role of these proteins in T-cell motility, adhesion, and in vivo trafficking remains poorly understood. This study identifies a specific role for EVL and VASP in T-cell diapedesis and trafficking. We demonstrate that EVL and VASP are selectively required for activated T-cell trafficking but are not required for normal T-cell development or for naïve T-cell trafficking to lymph nodes and sple

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Varkey, J. P., P. L. Jansma, A. N. Minniti, and S. Ward. "The Caenorhabditis elegans spe-6 gene is required for major sperm protein assembly and shows second site non-complementation with an unlinked deficiency." Genetics 133, no. 1 (1993): 79–86. http://dx.doi.org/10.1093/genetics/133.1.79.

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Abstract Caenorhabditis elegans spermatozoa move by crawling. Their motility requires thin cytoskeletal filaments assembled from a unique cytoskeletal protein, the major sperm protein (MSP). During normal sperm development the MSP is segregated to developing sperm by assembly into filaments that form a paracrystalline array in a transient organelle, the fibrous body-membranous organelle. Mutations in the spe-6 gene cause sterility because they lead to defective primary spermatocytes that do not form spermatids. In these mutant spermatocytes the MSP fails to assemble into fibrous body filaments

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Magdalena, Juana, Thomas H. Millard, Sandrine Etienne-Manneville, Sophie Launay, Helen K. Warwick, and Laura M. Machesky. "Involvement of the Arp2/3 Complex and Scar2 in Golgi Polarity in Scratch Wound Models." Molecular Biology of the Cell 14, no. 2 (2003): 670–84. http://dx.doi.org/10.1091/mbc.e02-06-0345.

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Cell motility and cell polarity are essential for morphogenesis, immune system function, and tissue repair. Many animal cells move by crawling, and one main driving force for movement is derived from the coordinated assembly and disassembly of actin filaments. As tissue culture cells migrate to close a scratch wound, this directional extension is accompanied by Golgi apparatus reorientation, to face the leading wound edge, giving the motile cell inherent polarity aligned relative to the wound edge and to the direction of cell migration. Cellular proteins essential for actin polymerization down

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BORODAI, E. "MILITARYAPPLIED SPORTS AS EFFECTIVE MEANS OF DEVELOPMENT OF MOTILITY OF MOVEMENTS AND FORMATION OF APPLIED SKILLS OF HIGH SCHOOL STUDENT IN THE PROCESS OF PRECONSCRIPTION TRAINING." Pedagogical Sciences, no. 75-76 (December 12, 2020): 44–49. http://dx.doi.org/10.33989/2524-2474.2020.75-76.226366.

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The theoretical bases of application of military-applied sports as effective means of development of physical skills of senior pupils in the course of pre-conscription preparation are considered in the article. It was found that the correct influence on physiological development forms the general moral and psychological readiness of the soldier. The most effective means of physical training of high school students during pre-service training is the introduction of military-applied sports in the educational process, among which the leading place is occupied by military sports, which have a comp

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Fritz-Laylin, Lillian K., and Margaret A. Titus. "The evolution and diversity of actin-dependent cell migration." Molecular Biology of the Cell 34, no. 12 (2023). http://dx.doi.org/10.1091/mbc.e22-08-0358.

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Many eukaryotic cells, including animal cells and unicellular amoebae, use dynamic-actin networks to crawl across solid surfaces. Recent discoveries of actin-dependent crawling in additional lineages have sparked interest in understanding how and when this type of motility evolved. Tracing the evolution of cell crawling requires understanding the molecular mechanisms underlying motility. Here we outline what is known about the diversity and evolution of the molecular mechanisms that drive cell motility, with a focus on actin-dependent crawling. Classic studies and recent work have revealed a s

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Sakai, Tatsuya, Hiroaki Takagi, Yasushi Muraki, and Mineki Saito. "Unique Directional Motility of Influenza C Virus Controlled by Its Filamentous Morphology and Short-Range Motions." Journal of Virology 92, no. 2 (2017). http://dx.doi.org/10.1128/jvi.01522-17.

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ABSTRACT Influenza virus motility is based on cooperation between two viral spike proteins, hemagglutinin (HA) and neuraminidase (NA), and is a major determinant of virus infectivity. To translocate a virus particle on the cell surface, HA molecules exchange viral receptors and NA molecules accelerate the receptor exchange of HA. This type of virus motility was recently identified in influenza A virus (IAV). To determine if other influenza virus types have a similar receptor exchange mechanism-driven motility, we investigated influenza C virus (ICV) motility on a receptor-fixed glass surface.

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Kokubu, Eitoyo, Yuichiro Kikuchi, Kazuko Okamoto‐Shibayama, Shuichi Nakamura, and Kazuyuki Ishihara. "Crawling motility of Treponema denticola modulated by outer sheath protein." Microbiology and Immunology, September 9, 2021. http://dx.doi.org/10.1111/1348-0421.12940.

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Craig, Erin M., Francesca Oprea, Sajid Alam, Ania Grodsky, and Kyle E. Miller. "A simple active fluid model unites cytokinesis, cell crawling, and axonal outgrowth." Frontiers in Cell and Developmental Biology 12 (October 17, 2024). http://dx.doi.org/10.3389/fcell.2024.1491429.

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While the structural organization and molecular biology of neurons are well characterized, the physical process of axonal elongation remains elusive. The classic view posited elongation occurs through the deposition of cytoskeletal elements in the growth cone at the tip of a stationary array of microtubules. Yet, recent studies reveal axonal microtubules and docked organelles flow forward in bulk in the elongating axons of Aplysia, chick sensory, rat hippocampal, and Drosophila neurons. Noting that the morphology, molecular components, and subcellular flow patterns of growth cones strongly res

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DeSimone, A., and A. Tatone. "Crawling motility through the analysis of model locomotors: Two case studies." European Physical Journal E 35, no. 9 (2012). http://dx.doi.org/10.1140/epje/i2012-12085-x.

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Moreno-Cañadas, Rocío, Laura Luque-Martín, and Alicia G. Arroyo. "Intravascular Crawling of Patrolling Monocytes: A Lèvy-Like Motility for Unique Search Functions?" Frontiers in Immunology 12 (September 17, 2021). http://dx.doi.org/10.3389/fimmu.2021.730835.

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Patrolling monocytes (PMo) are the organism’s preeminent intravascular guardians by their continuous search of damaged endothelial cells and harmful microparticles for their removal and to restore homeostasis. This surveillance is accomplished by PMo crawling on the apical side of the endothelium through regulated interactions of integrins and chemokine receptors with their endothelial ligands. We propose that the search mode governs the intravascular motility of PMo in vivo in a similar way to T cells looking for antigen in tissues. Signs of damage to the luminal side of the endothelium (loca

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