scholarly journals Markedly Increased High-Mobility Group Box 1 Protein in a Patient with Small-for-Size Syndrome

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Darren G. Craig ◽  
Patricia Lee ◽  
E. Anne Pryde ◽  
Ernest Hidalgo ◽  
Peter C. Hayes ◽  
...  
Keyword(s):  
Inflammatory Mediators ◽  
Fatal Case ◽  
High Mobility ◽  
Serum Levels ◽  
Normal Function ◽  
High Mobility Group ◽  
Hmgb1 Protein ◽  
Membrane Bound ◽  
Small For Size ◽  
Molecular Patterns

Background. Small-for-size syndrome (SFSS) occurs in the presence of insufficient liver mass to maintain normal function after liver transplantation. Murine mortality following 85% hepatectomy can be reduced by the use of soluble receptor for advanced glycation end products (sRAGE) to scavenge damage-associated molecular patterns and prevent their engagement with membrane-bound RAGE.Aims. To explore serum levels of sRAGE, high-mobility group box-1 (HMGB1) protein, and other soluble inflammatory mediators in a fatal case of SFSS.Methods. Serum levels of HMGB1, sRAGE, IL-18, and other inflammatory mediators were measured by ELISA in a case of SFSS, and the results were compared with 8 patients with paracetamol-induced acute liver failure (ALF) and 6 healthy controls (HC).Results. HMGB1 levels were markedly higher in the SFSS patient (92.1 ng/mL) compared with the ALF patients (median (IQR) 11.4 (3.7–14.8) ng/mL) and HC (1.42 (1.38–1.56) ng/mL). In contrast, sRAGE levels were lower in the SFSS patient (1.88 ng/mL) compared with the ALF patients (3.53 (2.66–12.37) ng/mL) and were similar to HC levels (1.40 (1.23–1.89) ng/mL).Conclusion. These results suggest an imbalance between pro- and anti-inflammatory innate immune pathways in SFSS. Modulation of the HMGB1-RAGE axis may represent a future therapeutic avenue in this condition.

Elevated serum levels of high mobility group box 1 (HMGB1) protein in dengue-infected patients are associated with disease symptoms and secondary infection

2012 ◽  
Vol 55 (3) ◽  
pp. 214-219 ◽  
Author(s):  
Diego Allonso ◽  
Fabricio S. Belgrano ◽  
Naifi Calzada ◽  
Maria G. Guzmán ◽  
Susana Vázquez ◽  
...  
Keyword(s):  
Secondary Infection ◽  
Elevated Serum ◽  
High Mobility ◽  
Serum Levels ◽  
High Mobility Group ◽  
Hmgb1 Protein ◽  
Disease Symptoms

scholarly journals Pristimerin attenuates sepsis-induced lung injury by regulating nuclear factor kappaB/high-mobility group box 1 pathway

2020 ◽  
Vol 19 (6) ◽  
pp. 1167-1171
Author(s):  
Xiao Wang ◽  
Lei Huang ◽  
Peng Li
Keyword(s):  
Lung Injury ◽  
Lung Tissue ◽  
Inflammatory Mediators ◽  
Cecal Ligation ◽  
Weight Ratio ◽  
High Mobility ◽  
Dry Weight ◽  
Serum Levels ◽  
High Mobility Group ◽  
Lung Injury Score

Purpose: To determine the effect of pristimerin on sepsis-induced lung injury, and the underlying mechanism of action.Methods: Lung injury was established in mice via induction of sepsis through cecal ligation and puncture (CLP). The effect of pristimerin was evaluated based on lung wet/dry weight and PaO2/FiO2 ratios. Lung tissue was subjected to immunohistochemical and histopathological analyses, as well as Western blotting. Furthermore, the serum levels of inflammatory mediators were determined.Results: Pristimerin reversed the altered lung wet/dry weight ratio and PaO2/FiO2 ratio in the lung, and also reduced lung injury score, relative to CLP group (p < 0.05). Moreover, it suppressed nucleocytoplasmic translocation of high mobility group protein B1 (HMGB1) in lung tissue. Serum levels of inflammatory mediators and expression levels of inducible nitric oxide synthase and nuclear factorkappaB p65 were significantly reduced by pristimerin (p < 0.05).Conclusion: Pristimerin ameliorates sepsis-induced lung injury by inhibiting HMGB1/NF-κB. Thus, this compound has a potential for clinical application in the management of lung injury. Keywords: Pristimerin, Sepsis, Lung injury, Inflammatory mediators, HMGB1

High Mobility Group Box-1 (HMGB1): A Potential Target in Therapeutics

2019 ◽  
Vol 20 (14) ◽  
pp. 1474-1485 ◽  
Author(s):  
Eyaldeva C. Vijayakumar ◽  
Lokesh Kumar Bhatt ◽  
Kedar S. Prabhavalkar
Keyword(s):  
Myocardial Infarction ◽  
Vagus Nerve Stimulation ◽  
Nuclear Protein ◽  
Therapeutic Potential ◽  
High Mobility ◽  
Dna Binding Protein ◽  
High Mobility Group ◽  
Eukaryotic Cells ◽  
Hmgb1 Protein

High mobility group box-1 (HMGB1) mainly belongs to the non-histone DNA-binding protein. It has been studied as a nuclear protein that is present in eukaryotic cells. From the HMG family, HMGB1 protein has been focused particularly for its pivotal role in several pathologies. HMGB-1 is considered as an essential facilitator in diseases such as sepsis, collagen disease, atherosclerosis, cancers, arthritis, acute lung injury, epilepsy, myocardial infarction, and local and systemic inflammation. Modulation of HMGB1 levels in the human body provides a way in the management of these diseases. Various strategies, such as HMGB1-receptor antagonists, inhibitors of its signalling pathway, antibodies, RNA inhibitors, vagus nerve stimulation etc. have been used to inhibit expression, release or activity of HMGB1. This review encompasses the role of HMGB1 in various pathologies and discusses its therapeutic potential in these pathologies.

scholarly journals Identification and Characterization of the Direct Interaction between Methotrexate (MTX) and High-Mobility Group Box 1 (HMGB1) Protein

PLoS ONE ◽  
2013 ◽  
Vol 8 (5) ◽  
pp. e63073 ◽  
Author(s):  
Yuki Kuroiwa ◽  
Yoichi Takakusagi ◽  
Tomoe Kusayanagi ◽  
Kouji Kuramochi ◽  
Takahiko Imai ◽  
...  
Keyword(s):  
High Mobility ◽  
Direct Interaction ◽  
High Mobility Group ◽  
Hmgb1 Protein ◽  
Identification And Characterization

The Role of High Mobility Group Box 1 (HMGB1) in Neurodegeneration: A Systematic Review

2022 ◽  
Vol 20 ◽  
Author(s):  
Fathimath Zaha Ikram ◽  
Alina Arulsamy ◽  
Thaarvena Retinasamy ◽  
Mohd. Farooq Shaikh
Keyword(s):  
Systematic Review ◽  
Tissue Injury ◽  
High Mobility ◽  
High Mobility Group ◽  
Hmgb1 Protein ◽  
Toll Like Receptor 4 ◽  
Neuroinflammatory Response ◽  
Molecular Pattern ◽  
Glycation End Products

Background: High mobility group box 1 (HMGB1) protein is a damage-associated molecular pattern (DAMP) molecule that plays an important role in the repair and regeneration of tissue injury. It also acts as a pro-inflammatory cytokine through the activation of toll-like receptor 4 (TLR4) and receptor for advanced glycation end products (RAGE), to elicit the neuroinflammatory response. HMGB1 may aggravate several cellular responses which may lead to pathological inflammation and cellular death. Thus, there have been a considerable amount of research into the pathological role of HMGB1 in diseases. However, whether the mechanism of action of HMGB1 is similar in all neurodegenerative disease pathology remains to be determined. Objective: Therefore, this systematic review aimed to critically evaluate and elucidate the role of HMGB1 in the pathology of neurodegeneration based on the available literature. Methods: A comprehensive literature search was performed on four databases; EMBASE, PubMed, Scopus, and CINAHL Plus. Results: A total of 85 articles were selected for critical appraisal, after subjecting to the inclusion and exclusion criteria in this study. The selected articles revealed that HMGB1 levels were found elevated in most neurodegeneration except in Huntington’s disease and Spinocerebellar ataxia, where the levels were found decreased. This review also showcased that HMGB1 may act on distinctive pathways to elicit its pathological response leading to the various neurodegeneration processes/diseases. Conclusion: While there have been promising findings in HMGB1 intervention research, further studies may still be required before any HMGB1 intervention may be recommended as a therapeutic target for neurodegenerative diseases.

High-mobility group box 1 (HMGB1) protein regulates tumor-associated cell migration through the interaction with BTB domain

2014 ◽  
Vol 26 (4) ◽  
pp. 777-783 ◽  
Author(s):  
Young Bok Ko ◽  
Boh-Ram Kim ◽  
Sang Lyun Nam ◽  
Jung Bo Yang ◽  
Sang-Yoon Park ◽  
...  
Keyword(s):  
Cell Migration ◽  
High Mobility ◽  
High Mobility Group ◽  
Hmgb1 Protein ◽  
Btb Domain

scholarly journals High-mobility group box-1 protein from CC10+ club cells promotes type 2 response in the later stage of respiratory syncytial virus infection

2019 ◽  
Vol 316 (1) ◽  
pp. L280-L290 ◽  
Author(s):  
Sisi Chen ◽  
Guangyuan Yu ◽  
Jun Xie ◽  
Wei Tang ◽  
Leiqiong Gao ◽  
...  
Keyword(s):  
Respiratory Syncytial Virus ◽  
High Mobility ◽  
Clinical Severity ◽  
High Mobility Group ◽  
Hmgb1 Protein ◽  
Club Cells ◽  
Hmgb1 Expression ◽  
Syncytial Virus ◽  
Tract Infections

The type 2 immune response, induced by infection of respiratory syncytial virus (RSV), has been linked to asthma development, but it remains unclear how the response is initiated. Here, we reported that the high-mobility group box-1 (HMGB1) protein promotes the type 2 response in the later stage of RSV infection. In mice, we found that type 2 cytokines were elevated in the later stages, which were strongly diminished after administration of anti-HMGB1 antibodies. Further investigation revealed that HMGB1 expression was localized to CC10+ club cells in the lung. In the clinic, levels of HMGB1 in nasopharyngeal aspirates in hospitalized infants with RSV bronchiolitis [median (interquartile range) 161.20 ng/ml (68.06–221.30)] were significantly higher than those without lower respiratory tract infections [21.94 ng/ml (12.12–59.82); P < 0.001]. Moreover, higher levels of HMGB1 correlated with clinical severity. These results reveal a link between viral infection and the asthma-like type 2 responses that are associated with long-term consequences.

scholarly journals The Proinflammatory Cytokine High-Mobility Group Box-1 Mediates Retinal Neuropathy Induced by Diabetes

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Ahmed M. Abu El-Asrar ◽  
Mohammad Mairaj Siddiquei ◽  
Mohd Imtiaz Nawaz ◽  
Karel Geboes ◽  
Ghulam Mohammad
Keyword(s):  
Tyrosine Hydroxylase ◽  
Proinflammatory Cytokine ◽  
Caspase 3 ◽  
High Mobility ◽  
Diabetic Rats ◽  
High Mobility Group ◽  
Hmgb1 Protein ◽  
Epiretinal Membranes ◽  
Glyoxalase 1 ◽  
Extracellular Signal

To test the hypothesis that increased expression of proinflammatory cytokine high-mobility group box-1 (HMGB1) in epiretinal membranes and vitreous fluid from patients with proliferative diabetic retinopathy and in retinas of diabetic rats plays a pathogenetic role in mediating diabetes-induced retinal neuropathy. Retinas of 1-month diabetic rats and HMGB1 intravitreally injected normal rats were studied using Western blot analysis, RT-PCR and glutamate assay. In addition, we studied the effect of the HMGB1 inhibitor glycyrrhizin on diabetes-induced biochemical changes in the retina. Diabetes and intravitreal injection of HMGB1 in normal rats induced significant upregulation of HMGB1 protein and mRNA, activated extracellular signal-regulated kinase 1 and 2 (ERK1/2), cleaved caspase-3 and glutamate; and significant downregulation of synaptophysin, tyrosine hydroxylase, glutamine synthetase, and glyoxalase 1. Constant glycyrrhizin intake from the onset of diabetes did not affect the metabolic status of the diabetic rats, but it significantly attenuated diabetes-induced upregulation of HMGB1 protein and mRNA, activated ERK1/2, cleaved caspase-3, and glutamate. In the glycyrrhizin-fed diabetic rats, the decrease in synaptophysin, tyrosine hydroxylase, and glyoxalase 1 caused by diabetes was significantly attenuated. These findings suggest that early retinal neuropathy of diabetes involves upregulated expression of HMGB1 and can be ameliorated by inhibition of HMGB1.

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