A hallmark of gliomas is the growth and migration of cells over long distances within the brain and proliferation within selected niches, indicating that the migrating cells navigate between complex substrates. We demonstrate in the present study a differential preference for migration that depends on Rho-associated coil kinase (ROCK) signaling, using the alternating Bonhoeffer stripe assay. Membrane fractions from nonmyelinated and myelinated brain areas from female rats, purified myelin also from female rats, and commercial extracellular matrix were used as substrates, with each substrate being tested against the others. The human tumor cell lines exhibited a clear preference for extracellular matrix over all other substrates and for myelinated over nonmyelinated tissue. ROCK signaling was different when cells were cultured on either substrate. The ROCK inhibitor Y27632 significantly attenuated and neutralized the preference for extracellular matrix and myelin, indicating that ROCK controls the substrate selectivity. The findings of this study pave the way for navigation-targeted therapeutics.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3718996 | PMC |
| http://dx.doi.org/10.1007/s12035-013-8429-3 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Endothelial Damage in JAK2V617F Myeloproliferative Neoplasms with Splanchnic Vein Thrombosis.
Thromb Haemost
January 2025
Hemostasis and Erythropathology Laboratory, Hematopathology, Pathology Department, Centre de Diagnòstic Biomèdic (CDB), Hospital Clínic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain.
Background: V617F-mutated myeloproliferative neoplasms (MPN) exhibit abnormal proliferation of bone marrow progenitors and increased risk of thrombosis, specifically in splanchnic veins (SVT). The contribution of the endothelium to the development of the prothrombotic phenotype was explored.
Material And Methods: Plasma and serum samples from V617F MPN patients with (n=26) or without (n=7) thrombotic debut and different treatments, were obtained (n=33).
The pericellular function of Fibulin-7 in the adhesion of oligodendrocyte lineage cells to neuronal axons during CNS myelination.
Biochem Biophys Res Commun
January 2025
Department of Molecular and Cellular Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan; Department of Clinical Bioanalysis and Molecular Biology, Graduate School of Medical and Dental Sciences, Institute Science of Tokyo/TMDU, Tokyo, Japan. Electronic address:
Myelin is an electrical insulator that enables saltatory nerve conduction and is essential for proper functioning of the central nervous system (CNS). It is formed by oligodendrocytes (OLs) in the CNS, and during OL development various molecules, including extracellular matrix (ECM) proteins, regulate OL differentiation and myelination; however, the role of ECM proteins in these processes is not well understood. Our present work is centered on the analyses of the expression and function of fibulin-7 (Fbln7), an ECM protein of the fibulin family, in OL differentiation.
View Article and Find Full Text PDFExploring the potential of solid and liquid amniotic membrane biomaterial in 3D models for prostate cancer research: A comparative analysis with 2D models.
Tissue Cell
January 2025
Urology Research Center, Tehran University of Medical Sciences, Tehran, Iran. Electronic address:
Objective: Research and tools are necessary for understanding prostate cancer biology. 3D cell culture models have been created to overcome the limitations of animal models and 2D cell culture. The amniotic membrane (AM), a natural biomaterial, emerges as an ideal scaffold for 3D cultures due to its accessibility and incorporation of the extracellular matrix (ECM) in both solid and liquid forms.
View Article and Find Full Text PDFA mouse coccygeal intervertebral disc degeneration model with tail-looping constructed using a suturing method.
Animal Model Exp Med
January 2025
Department of Orthopaedic Surgery, The 909th Hospital, School of Medicine, Xiamen University, Zhangzhou, China.
Backgroud: Intervertebral disc degeneration (IDD) is one of the common degenerative diseases. Due to ethical constraints, it is difficult to obtain sufficient research on humans, so the use of an animal model of IDD is very important to clarify the pathogenesis and treatment mechanism of the disease.
Methods: In this study, thirty 2-month-old mice were selected for operation to establish a coccygeal IDD model.
Tenascin-X deficiency causing classical-like Ehlers Danlos syndrome type 1 in humans is a significant risk factor for GI and tracheal ruptures.
Clin Transl Gastroenterol
January 2025
Department of Clinical Genetics, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands.
Background: Classical-like Ehlers Danlos Syndrome type 1 (clEDS1) is a very rare form of Ehlers Danlos Syndrome (EDS) caused by tenascin-X (TNX) deficiency, with only 56 individuals reported. TNX is an extracellular matrix protein needed for collagen stability. Previous publications propose that individuals with clEDS1 might be at risk for gastrointestinal (GI) tract perforations and/or tracheal ruptures.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!