Abstract:
BACKGROUND:Plasminogen activation is a ubiquitous source of fibrinolytic and proteolytic activity. Besides its role in prevention of thrombosis, plasminogen is involved in inflammatory reactions in the central nervous system. Plasminogen has been detected in the cerebrospinal fluid (CSF) of patients with inflammatory diseases; however, its origin remains controversial, as the blood-CSF barrier may restrict its diffusion from blood. METHODS:We investigated the origin of plasminogen in CSF using Alexa Fluor 488-labelled rat plasminogen injected into rats with systemic inflammation and blood-CSF barrier dysfunction provoked by lipopolysaccharide (LPS). Near-infrared fluorescence imaging and immunohistochemistry fluorescence microscopy were used to identify plasminogen in brain structures, its concentration and functionality were determined by Western blotting and a chromogenic substrate assay, respectively. In parallel, plasminogen was investigated in CSF from patients with Guillain-Barré syndrome (n = 15), multiple sclerosis (n = 19) and noninflammatory neurological diseases (n = 8). RESULTS:Endogenous rat plasminogen was detected in higher amounts in the CSF and urine of LPS-treated animals as compared to controls. In LPS-primed rats, circulating Alexa Fluor 488-labelled rat plasminogen was abundantly localized in the choroid plexus, CSF and urine. Plasminogen in human CSF was higher in Guillain-Barré syndrome (median = 1.28 ng/μl (interquartile range (IQR) = 0.66 to 1.59)) as compared to multiple sclerosis (median = 0.3 ng/μl (IQR = 0.16 to 0.61)) and to noninflammatory neurological diseases (median = 0.27 ng/μl (IQR = 0.18 to 0.35)). CONCLUSIONS:Our findings demonstrate that plasminogen is transported from circulating blood into the CSF of rats via the choroid plexus during inflammation. Our data suggest that a similar mechanism may explain the high CSF concentrations of plasminogen detected in patients with inflammation-derived CSF barrier impairment.
journal_name
J Neuroinflammationjournal_title
Journal of neuroinflammationauthors
Mezzapesa A,Orset C,Plawinski L,Doeuvre L,Martinez de Lizarrondo S,Chimienti G,Vivien D,Mansour A,Matà S,Pepe G,Anglés-Cano Edoi
10.1186/s12974-014-0154-ysubject
Has Abstractpub_date
2014-09-16 00:00:00pages
154issn
1742-2094pii
s12974-014-0154-yjournal_volume
11pub_type
杂志文章abstract:BACKGROUND:Patients diagnosed with chronic fatigue syndrome (CFS) or fibromyalgia experience chronic pain. Concomitantly, the rat model of CFS exhibits microglial activation in the lumbar spinal cord and pain behavior without peripheral tissue damage and/or inflammation. The present study addressed the mechanism underl...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-019-1456-x
更新日期:2019-03-30 00:00:00
abstract:BACKGROUND:After spinal cord injury (SCI), glial scarring is mainly formed around the lesion and inhibits axon regeneration. Recently, we reported that anti-β1 integrin antibody (β1Ab) had a therapeutic effect on astrocytes by preventing the induction of glial scar formation. However, the cellular components within the...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-020-02059-x
更新日期:2021-01-06 00:00:00
abstract:BACKGROUND:Acute inflammation induced by reactive astrocytes after cerebral ischemia/reperfusion (I/R) injury is important for protecting the resultant lesion. Our previous study demonstrated that DJ-1 is abundantly expressed in reactive astrocytes after cerebral I/R injury. Here, we show that DJ-1 negatively regulates...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-020-01764-x
更新日期:2020-03-09 00:00:00
abstract:BACKGROUND:Preconditioning is a phenomenon by which tolerance develops to injury by previous exposure to a stressor of mild severity. Previous studies have shown that single or repeated low dose MDMA can attenuate 5-HT transporter loss produced by a subsequent neurotoxic dose of the drug. We have explored the mechanism...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/1742-2094-8-165
更新日期:2011-11-24 00:00:00
abstract::Toll like receptor 4 (TLR4) is an innate immune pattern recognition receptor, expressed predominantly on microglia in the CNS. Activation of spinal TLR4 plays a critical role in the genesis of pathological pain induced by nerve injury, bone cancer, and tissue inflammation. Currently, it remains unknown how synaptic ac...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-014-0222-3
更新日期:2015-01-09 00:00:00
abstract:BACKGROUND:A key feature of the inflammatory response after cerebral ischemia is the brain infiltration of blood monocytes. There are two main monocyte subsets in the mouse blood: CCR2+Ly6Chi "inflammatory" monocytes involved in acute inflammation, and CX3CR1+Ly6Clo "patrolling" monocytes, which may play a role in repa...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-016-0750-0
更新日期:2016-11-04 00:00:00
abstract:BACKGROUND:Experimental autoimmune encephalomyelitis (EAE) is the most commonly used and clinically relevant murine model for human multiple sclerosis (MS), a demyelinating autoimmune disease characterized by mononuclear cell infiltration into the central nervous system (CNS). The aim of the present study was to apprai...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-020-01936-9
更新日期:2020-09-07 00:00:00
abstract:BACKGROUND:Vascular contributions to cognitive impairment and dementia (VCID) are the second leading cause of dementia behind only Alzheimer's disease (AD); however, VCID is commonly found as a co-morbidity with sporadic AD. We have previously established a mouse model of VCID by inducing hyperhomocysteinemia in both w...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-019-1685-z
更新日期:2019-12-30 00:00:00
abstract:BACKGROUND:Transforming growth factor β (TGF-β) is a cytokine having multiple functions in the central nervous system such as promoting repair mechanisms in degenerative diseases and stroke. To date, however, its neuroprotective effects in non-disease conditions have not been studied METHODS:With the aim of exploring ...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/1742-2094-9-42
更新日期:2012-02-28 00:00:00
abstract:BACKGROUND:The small population of glioma stem-like cells (GSCs) contributes to tumor initiation, malignancy, and recurrence in glioblastoma. However, the maintenance of GSC properties in the tumor microenvironment remains unclear. In glioma, non-neoplastic cells create an inflammatory environment and subsequently medi...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-019-1535-z
更新日期:2019-07-12 00:00:00
abstract:BACKGROUND:Pharmaceutical treatment with probable anti-inflammatory substances that attack cells in various ways including receptors, ion channels, or transporter systems may slow down the progression of inflammatory conditions. Astrocytes and microglia are the most prominent target cells for inflammation in the centra...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-018-1361-8
更新日期:2018-11-17 00:00:00
abstract:BACKGROUND:Mice with pilocarpine-induced temporal lobe epilepsy (TLE) are characterized by intense hippocampal neuroinflammation, a prominent pathological hallmark of TLE that is known to contribute to neuronal hyperexcitability. Recent studies indicate that Adam10, a member of a disintegrin and metalloproteinase domai...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-018-1260-z
更新日期:2018-08-04 00:00:00
abstract::Docosahexaenoic acid (DHA) is an omega-3 (ω-3) long-chain polyunsaturated fatty acid (LCPUFA) relevant for brain function. It has largely been explored as a potential candidate to treat Alzheimer's disease (AD). Clinical evidence favors a role for DHA in the improvement of cognition in very early stages of the AD. In ...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章,评审
doi:10.1186/s12974-016-0525-7
更新日期:2016-03-10 00:00:00
abstract:BACKGROUND:Accumulating evidence has highlighted the importance of microglial and astrocyte responses in the pathological development of postoperative cognitive dysfunction (POCD). However, the mechanisms involved are not well understood. METHODS:A perioperative neurocognitive disorders (PND) mouse model was generated...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-020-01799-0
更新日期:2020-04-07 00:00:00
abstract::Nerve injury-induced chronic pain has been an urgent problem for both public health and clinical practice. While transition to chronic pain is not an inevitable consequence of nerve injuries, the susceptibility/resilience factors and mechanisms for chronic neuropathic pain after nerve injuries still remain unknown. Cu...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章,评审
doi:10.1186/s12974-019-1684-0
更新日期:2020-01-03 00:00:00
abstract:BACKGROUND:Interleukin-17A (IL-17A) is the founding member of a novel family of inflammatory cytokines that plays a critical role in the pathogenesis of many autoimmune diseases, including multiple sclerosis (MS) and its animal model, experimental autoimmune encephalomyelitis (EAE). IL-17A signals through its receptor,...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/1742-2094-6-14
更新日期:2009-04-28 00:00:00
abstract:AIM:To determine whether Compound 49b, a novel beta-adrenergic receptor agonist, can prevent increased inflammation and apoptosis in mice after exposure to ocular blast. METHODS:Eyes of C57/BL6 mice were exposed to a blast of air from a paintball gun at 26 psi (≈0.18 MPa). Eyes were collected 4 hours, 24 hours, and 72...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/1742-2094-10-96
更新日期:2013-07-30 00:00:00
abstract:BACKGROUND:Elevated levels of oncostatin M (OSM), an interleukin-6 cytokine family member, have been observed in HIV-1-associated neurocognitive disorders (HAND) and Alzheimer's disease. However, the function of OSM in these disease conditions is unclear. Since deficient glutamate uptake by astrocytes is instrumental i...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-016-0613-8
更新日期:2016-06-10 00:00:00
abstract::Multiple lines of evidence support the pathogenic role of neuroinflammation in psychiatric illness. While systemic autoimmune diseases are well-documented causes of neuropsychiatric disorders, synaptic autoimmune encephalitides with psychotic symptoms often go under-recognized. Parallel to the link between psychiatric...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章,评审
doi:10.1186/1742-2094-10-43
更新日期:2013-04-01 00:00:00
abstract:BACKGROUND:The chemokine interleukin-8 (IL-8) and its receptor CXCR2 contribute to chemotactic responses in Alzheimer's disease (AD); however, properties of the ligand and receptor have not been characterized in animal models of disease. The primary aim of our study was to examine effects of pharmacological antagonism ...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-015-0339-z
更新日期:2015-08-09 00:00:00
abstract:BACKGROUND:Exposure to benzo(a)pyrene (BaP) was associated with cognitive impairments and some Alzheimer's disease (AD)-like pathological changes. However, it is largely unknown whether BaP exposure participates in the disease progression of AD. OBJECTIVES:To investigate the effect of BaP exposure on AD progression an...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-020-01925-y
更新日期:2020-08-31 00:00:00
abstract:BACKGROUND:Immune activation, specifically activation of macrophages and resident microglia, leading to inflammation is a key component in the progression of spinal cord injury (SCI). Macrophages/microglia exist in two states-the classically activated M1 phenotype that confers pro-inflammatory effects or the alternativ...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-018-1183-8
更新日期:2018-05-22 00:00:00
abstract:BACKGROUND:Kainic acid (KA)-induced status epilepticus (SE) was involved with release of free radicals. Sesamin is a well-known antioxidant from sesame seeds and it scavenges free radicals in several brain injury models. However the neuroprotective mechanism of sesamin to KA-induced seizure has not been studied. METHO...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/1742-2094-8-57
更新日期:2011-05-24 00:00:00
abstract::We report on a serum autoantibody associated with cerebellar ataxia. Immunohistochemical studies of sera from four patients referred for autoantibody testing revealed binding of high-titer (up to 1:5,000) IgG antibodies, mainly IgG1, to the molecular layer, Purkinje cell layer, and white matter on mouse, rat, porcine,...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-014-0206-3
更新日期:2014-12-11 00:00:00
abstract:BACKGROUND:Complement activation via the lectin activation pathway (LP) has been identified as the key mechanism behind post-ischemic tissue inflammation causing ischemia-reperfusion injury (IRI) which can significantly impact the clinical outcome of ischemic disease. This work defines the contributions of each of the ...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-016-0684-6
更新日期:2016-08-30 00:00:00
abstract::The NLRP3 (nucleotide-binding oligomerization domain-like receptor [NLR] family pyrin domain-containing 3) inflammasome is a member of the NLR family of innate immune cell sensors. These are crucial regulators of cytokine secretions, which promote ischemic cell death and insulin resistance. This review summarizes rece...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章,评审
doi:10.1186/s12974-019-1498-0
更新日期:2019-06-07 00:00:00
abstract:BACKGROUND:Neuroinflammation is considered a risk factor for impairments in neuronal function and cognition that arise with trauma, infection, and/or disease. IL-17A has been determined to be involved in neurodegenerative diseases such as multiple sclerosis. Recently, IL-17A has been shown to be upregulated in lipopoly...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/s12974-015-0394-5
更新日期:2015-09-15 00:00:00
abstract:BACKGROUND:White matter injury (WMI) is the major antecedent of cerebral palsy in premature infants, and is often associated with maternal infection and the fetal inflammatory response. The current study explores the therapeutic potential of glutamate receptor blockade or cyclooxygenase-2 (COX-2) inhibition for inflamm...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/1742-2094-10-153
更新日期:2013-12-17 00:00:00
abstract:BACKGROUND:Meningothelial cells (MECs) are the cellular components of the meninges. As such, they provide important barrier function for the central nervous system (CNS) building the interface between neuronal tissue and the cerebrospinal fluid (CSF), and are also part of the immune response of the CNS. METHODS:Human,...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/1742-2094-11-35
更新日期:2014-02-24 00:00:00
abstract:BACKGROUND:Genetic and environmental factors are critical elements influencing the etiology of major depression. It is now accepted that neuroinflammatory processes play a major role in neuropsychological disorders. Neuroinflammation results from the dysregulation of the synthesis and/or release of pro- and anti-inflam...
journal_title:Journal of neuroinflammation
pub_type: 杂志文章
doi:10.1186/1742-2094-11-132
更新日期:2014-07-28 00:00:00