Fibronectin, which is present at relatively low levels in healthy central nervous systems (CNS), shows increased levels in meningitis. In this study, fibronectin processing was correlated with the increased permeability of the blood-cerebrospinal fluid (CSF) barrier as well as with the formation of eosinophil infiltrates in angiostrongyliasis meningitis. The immunohistochemistry results show matrix metalloproteinase-9 (MMP-9) is localized in the choroid plexus epithelium. Coimmunoprecipitation demonstrated fibronectin strongly binds MMP-9. Furthermore, treatment with the MMP-9 inhibitor GM6001 significantly inhibited fibronectin processing, reduced the blood-CSF barrier permeability, and decreased the eosinophil counts. The decreased fibronectin processing in CSF implies decreased cellular invasion of the subarachnoid space across the blood-CSF barrier. Therefore, increased fibronectin processing may be associated with barrier disruption and participate in the extravasation and migration of eosinophils into the CNS during experimental parasitic infection.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.exppara.2015.02.002 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
FGF and TGF-β Growth Factor Isoform Modulation of Human Gingival and Periodontal Ligament Fibroblast Wound Healing Phenotype.
Matrix Biol
January 2025
Department of Anatomy and Cell Biology, Dentistry, Schulich School of Medicine and Dentistry, Western University, London, Ontario, N6A 3K7, Canada; Dentistry, Schulich School of Medicine and Dentistry, Western University, London, Ontario, N6A 3K7, Canada. Electronic address:
Release of growth factors in the tissue microenvironment is a critical process in the repair and regeneration of periodontal tissues, regulating fibroblast behavior and phenotype. As a result of the complex architecture of the periodontium, distinct fibroblast populations in the periodontal ligament and gingival connective tissue exist in close proximity. Growth factor therapies for periodontal regeneration have gained traction, but quantification of their effects on multiple different fibroblast populations that are required for repair has been poorly investigated.
View Article and Find Full Text PDFImpact of Copper(II) and Silver(I) Complexes Containing 1,10-Phenanthroline-5,6-dione on Cellular and Virulence Aspects of Scedosporium apiospermum.
Curr Top Med Chem
January 2025
Laboratório de Estudos Avançados de Microrganismos Emergentes e Resistentes (LEAMER), Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes (IMPG), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
Background: Scedosporium apiospermum is a multidrug-resistant filamentous fungus that causes localized and disseminated diseases. Our group has previously described that metalbased complexes containing copper(II) or silver(I) ions complexed with 1,10-phenanthroline-5,6- dione (phendione) inhibited the viability of S. apiospermum conidial cells.
View Article and Find Full Text PDFFSTL1 aggravates high glucose-induced oxidative stress and transdifferentiation in HK-2 cells.
Sci Rep
January 2025
Medical Imaging Center, First Affiliated Hospital, Jiamusi University, Jiamusi, Heilongjiang, China.
Chronic hyperglycemia, a hallmark of diabetes, can trigger inflammatory responses in the kidney, leading to diabetic nephropathy (DN). Follistatin-like protein 1 (FSTL1) has emerged as a potential therapeutic target in various kidney diseases. This study investigated the effect of high glucose on FSTL1 expression and its role in oxidative stress and cellular transdifferentiation injury in HK-2 human proximal tubule epithelial cells, a model of DN.
View Article and Find Full Text PDFFN1 shapes the behavior of papillary thyroid carcinoma through alternative splicing of EDB region.
Sci Rep
January 2025
Department of General Surgery, XiangYa Hospital Central South University, No. 87 XiangYa Road, Changsha, 410008, Hunan, China.
Papillary thyroid cancer (PTC) is often characterized by indolent behavior, small tumors with slow cell proliferation and a tendency to metastasize to cervical lymph node simultaneously, and the molecular mechanisms underlying that remain poorly understood. In this study, FN1 was the hottest gene of PTC and distinctive expression in PTC cells. FN1 deficiency severely inhibited the p53 signaling pathway, especially cyclin proteins, resulting in increased cell growth but hampered invasion.
View Article and Find Full Text PDFChanges in various forms of fibronectin in patients undergoing coronary artery bypass grafting with cardiopulmonary bypass - a prospective, observational study.
Sci Rep
December 2024
Clinical Department of Anesthesiology and Intensive Therapy, Wroclaw Medical University, Borowska 213, 50-556, Wroclaw, Poland.
Coronary artery bypass grafting (CABG) with cardiopulmonary bypass (CPB) is associated with the transient activation of a systemic inflammatory response. Fibronectin (FN), an endogenous inflammatory mediator, is a key component of the extracellular matrix. This study aimed to detect changes in cellular and plasma FN levels, as well as its potential fragmentation or FN-fibrin complex formation, in 40 patients undergoing CABG with CPB.
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!