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high mobility group box-1 protein 1

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https://www.readbyqxmd.com/read/30333099/the-platelet-nlrp3-inflammasome-is-upregulated-in-sickle-cell-disease-via-hmgb1-tlr4-and-bruton-tyrosine-kinase
#1
Sebastian Vogel, Taruna Arora, Xunde Wang, Laurel Mendelsohn, James Nichols, Darlene Allen, Arun S Shet, Christian A Combs, Zenaide M N Quezado, Swee Lay Thein
A key inflammatory mechanism recently identified in platelets involves the Nod-like receptor nucleotide-binding domain leucine-rich repeat containing protein 3 (NLRP3) and Bruton tyrosine kinase (BTK), which control activation of caspase-1 within inflammasome complexes. We investigated platelet caspase-1 activity in the context of sickle cell disease (SCD) directly in platelets isolated from SCD patients (n = 24) and indirectly by incubating platelets from healthy subjects with plasma obtained from SCD patients (n = 20), both in steady state and during an acute pain crisis (paired samples)...
October 23, 2018: Blood Advances
https://www.readbyqxmd.com/read/30328477/pka-regulates-hmgb1-through-activation-of-igfbp-3-and-sirt1-in-human-retinal-endothelial-cells-cultured-in-high-glucose
#2
Li Liu, Paragi Patel, Jena J Steinle
OBJECTIVE AND DESIGN: Inflammation is a key component of a number of diseases, including diabetic retinopathy. We investigated the cellular pathway by which protein kinase A (PKA) inhibited high mobility group box 1 (HMGB1). METHODS: Primary human retinal endothelial cells (REC) were grown in normal glucose (5 mM) or high glucose (25 mM). Cells in high glucose were treated with exchange protein for cAMP 1 (Epac1) and IGFBP-3 siRNA. Additional cells in high glucose were treated with forskolin, a PKA agonist, and Epac1 siRNA...
October 17, 2018: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/30327229/hypertonic-saline-resuscitation-protects-against-kidney-injury-induced-by-severe-burns-in-rats
#3
Chun-Yu Yuan, Qin-Cheng Wang, Xu-Lin Chen, Qiang Wang, Cong-Song Sun, Ye-Xiang Sun, Chun-Hua Wang, Ming-Xing Su, Hai-Ying Wang, Xue-Sheng Wu
BACKGROUND: Proper fluid resuscitation can relieve visceral damage and improve survival in severely burned patients. This study compared the effectiveness of resuscitation with 400mEq/L hypertonic saline (HS) and sodium lactate Ringer's solution (LR) in rats with kidney injury caused by burn trauma. METHODS: Rats (Sprague-Dawley) underwent burn injury and were randomized into sham, LR, and HS groups. Samples from the kidney were assayed for water content ratio, histopathology, and oxidative stress (superoxide dismutase (SOD) and malondialdehyde (MDA))...
October 13, 2018: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/30325653/glycyrrhizin-a-potential-drug-for-autoimmune-encephalomyelitis-by-inhibiting-high-mobility-group-box-1
#4
Jun Li, Junyu Shi, Yan Sun, Fang Zheng
Autoimmune encephalomyelitis is a chronic autoimmune disease caused by immune-mediated sterile inflammatory response and demyelination in the central nervous system (CNS). High-mobility group box protein 1 (HMGB1) is a ubiquitous nuclear protein, which can be released from damaged cells and induce proinflammatory responses in autoimmune encephalomyelitis. Glycyrrhizin (GL), a major constituent of licorice root, can inhibit the proinflammatory bioactivities of HMGB1. In this article, we bring some insight into the effects of GL on CNS inflammatory diseases and discuss the therapeutic potential of GL in autoimmune encephalomyelitis in the future...
October 16, 2018: DNA and Cell Biology
https://www.readbyqxmd.com/read/30320373/rosuvastatin-reduces-the-pro-inflammatory-effects-of-adriamycin-on-the-expression-of-hmgb1-and-rage-in-rats
#5
Haiyan Zhang, Xiang Lu, Zhengxia Liu, Kang Du
Rosuvastatin has cardiac protective effects through its anti‑inflammatory effects. The nuclear protein high‑mobility group box 1 (HMGB1) can activate inflammatory pathways when released from dying cells. The present study aimed to investigate the effects of rosuvastatin in adriamycin (ADR)‑treated rats. Adult male rats were randomized to three groups: i) Control group, ii) ADR group, and iii) ADR+rosuvastatin group. Serum biochemical indices were measured using an enzyme‑linked immunosorbent assay...
October 11, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/30314759/the-endotoxin-delivery-protein-hmgb1-mediates-caspase-11-dependent-lethality-in-sepsis
#6
Meihong Deng, Yiting Tang, Wenbo Li, Xiangyu Wang, Rui Zhang, Xianying Zhang, Xin Zhao, Jian Liu, Cheng Tang, Zhonghua Liu, Yongzhuo Huang, Huige Peng, Lehui Xiao, Daolin Tang, Melanie J Scott, Qingde Wang, Jing Liu, Xianzhong Xiao, Simon Watkins, Jianhua Li, Huan Yang, Haichao Wang, Fangping Chen, Kevin J Tracey, Timothy R Billiar, Ben Lu
Caspase-11, a cytosolic endotoxin (lipopolysaccharide: LPS) receptor, mediates pyroptosis, a lytic form of cell death. Caspase-11-dependent pyroptosis mediates lethality in endotoxemia, but it is unclear how LPS is delivered into the cytosol for the activation of caspase-11. Here we discovered that hepatocyte-released high mobility group box 1 (HMGB1) was required for caspase-11-dependent pyroptosis and lethality in endotoxemia and bacterial sepsis. Mechanistically, hepatocyte-released HMGB1 bound LPS and targeted its internalization into the lysosomes of macrophages and endothelial cells via the receptor for advanced glycation end-products (RAGE)...
October 16, 2018: Immunity
https://www.readbyqxmd.com/read/30312936/periconceptional-undernutrition-affects-the-levels-of-dna-methylation-in-the-peri-implantation-pig-endometrium-and-in-embryos
#7
K Zglejc-Waszak, E M Waszkiewicz, A Franczak
Maternal undernutrition during the periconceptional period alters the transcriptomic profile of pig endometrium and embryos. Herein, we tested the hypothesis that restricted maternal consumption by females during the periconceptional period impairs the pattern of DNA methylation in both the endometrium and embryos during the peri-implantation period (Day 15-16 of gestation). Affected genes in restricted-diet-fed pig endometrium and embryos were identified using quantitative methylation-specific PCR and comprised those genes which are known to be important in reproductive, metabolic and epigenetic function, thereby exhibiting altered transcriptomic expression in endometrium and embryos of restricted-diet-fed gilts...
October 3, 2018: Theriogenology
https://www.readbyqxmd.com/read/30307477/hypoxia-induces-hypomethylation-of-the-hmgb1-promoter-via-the-mapks-dnmt1-hmgb1-pathway-in-cardiac-progenitor-cells
#8
Jinwen Su, Ming Fang, Bei Tian, Jun Luo, Can Jin, Xuejun Wang, Zhongping Ning, Xinming Li
Apoptosis is involved in the death of cardiac progenitor cells (CPCs) after myocardial infarction (MI) in the heart. The loss of CPCs results in infarct scar and further deterioration of the heart function. Though stem cell-based therapy provides an effective approach for heart function recovery after MI, the retention of CPCs in the infarcted area of the heart is the main barrier that limits its promising therapy. Therefore, the underlying mechanisms of CPC apoptosis in hypoxia are important for the development of new therapeutic targets for MI patients...
October 11, 2018: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/30306713/high-efficiency-removal-of-cytokines-and-hmgb-1-by-continuous-hemofiltration-with-a-dual-layered-polyethersulfone-membrane-an-ex-vivo-study
#9
Yoshifumi Ohchi, Koji Goto, Norihisa Yasuda, Hironori Koga, Takaaki Kitano
The release of various inflammatory and anti-inflammatory cytokines is accelerated under conditions that cause systemic inflammatory reactions, such as sepsis and multiple traumas, and plays an important role in the formation of pathological conditions1, 2 . In addition, the involvement of high mobility group box chromosomal protein-1 (HMGB-1), a substance originally identified as an endogenous DNA binding protein3 , in various inflammatory pathologies has been revealed, with the elucidation of the clinical condition of sepsis and the mechanism of RAGE-mediated cellular activation4 ...
October 11, 2018: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/30306212/the-janus-face-of-hmgb1-in-heart-disease-a-necessary-update
#10
REVIEW
Angela Raucci, Stefania Di Maggio, Francesco Scavello, Alessandro D'Ambrosio, Marco E Bianchi, Maurizio C Capogrossi
High mobility group box 1 (HMGB1) is a ubiquitous nuclear protein involved in transcription regulation, DNA replication and repair and nucleosome assembly. HMGB1 is passively released by necrotic tissues or actively secreted by stressed cells. Extracellular HMGB1 acts as a damage-associated molecular pattern (DAMPs) molecule and gives rise to several redox forms that by binding to different receptors and interactors promote a variety of cellular responses, including tissue inflammation or regeneration. Inhibition of extracellular HMGB1 in experimental models of myocardial ischemia/reperfusion injury, myocarditis, cardiomyopathies induced by mechanical stress, diabetes, bacterial infection or chemotherapeutic drugs reduces inflammation and is protective...
October 10, 2018: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/30275049/proinflammatory-effects-of-respiratory-syncytial-virus-induced-epithelial-hmgb1-on-human-innate-immune-cell-activation
#11
Kempaiah Rayavara, Alexander Kurosky, Susan J Stafford, Nisha J Garg, Allan R Brasier, Roberto P Garofalo, Yashoda M Hosakote
High mobility group box 1 (HMGB1) is a multifunctional nuclear protein that translocates to the cytoplasm and is subsequently released to the extracellular space during infection and injury. Once released, it acts as a damage-associated molecular pattern and regulates immune and inflammatory responses. Respiratory syncytial virus (RSV) is a major cause of acute lower respiratory tract infections in infants and elderly, for which no effective treatment or vaccine is currently available. This study investigated the effects of HMGB1 on cytokine secretion, as well as the involvement of NF-κB and TLR4 pathways in RSV-induced HMGB1 release in human airway epithelial cells (AECs) and its proinflammatory effects on several human primary immune cells...
October 1, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/30273982/high-mobility-group-box-1-induces-pro-inflammatory-signaling-in-human-nucleus-pulposus-cells-via-toll-like-receptor-4-dependent-pathway
#12
Bhranti S Shah, Kevin G Burt, Timothy Jacobsen, Tiago D Fernandes, D Olivier Alipui, Kathryn T Weber, Mitchell Levine, Sangeeta S Chavan, Huan Yang, Kevin J Tracey, Nadeen O Chahine
Intervertebral disc (IVD) degeneration (DD) is associated with low back pain, the leading cause of disability worldwide. Damage-associated molecular patterns (DAMPs) that contribute to inflammation and trigger DD have not been well characterized. Extracellular high mobility group box-1 (HMGB1) protein has been implicated as a potent DAMP and pro-inflammatory stimulus in the immune system. In this study, we show that HMGB1 and IL-6 levels increase in patients with advanced DD in comparison to early DD. This study further tested the hypothesis that HMGB1 promotes inflammatory signaling driving DD in human nucleus pulposus (NP) cells and tissue...
October 1, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/30272309/systemic-immune-response-associated-with-radiation-therapy-in-b%C3%A2-cell-non%C3%A2-hodgkin-s-lymphoma-of-waldeyer-s-ring
#13
Xingjian Niu, Hongfei Ji, Yiran Wang, Songliu Hu, Qijia Xuan, Lan Huang, Lei Yin, Wenjia Su, Liru Li, Han Zhang, Jingtong Li, Yue Yang, Weiwei An, Qingyuan Zhang
Radiation therapy (RT) is one of the most effective therapeutic modalities for B‑cell non‑Hodgkin's lymphoma of Waldeyer's ring (WR‑B‑NHL). However, the responsiveness of RT remains controversial and clinical biomarkers are required to predict survival in RT‑treated patients with WR‑B‑NHL. Previous studies have suggested an association between RT and systemic immune responses. In the present retrospective study, the lymphocyte to monocyte ratio (LMR) was identified as a systemic immune indicator in RT‑treated patients with WR‑B‑NHL, and the prognostic value of the LMR with RT and systemic immune responses were evaluated...
September 28, 2018: Oncology Reports
https://www.readbyqxmd.com/read/30271593/the-role-of-high-mobility-group-box-1-protein-in-acute-cerebrovascular-diseases
#14
REVIEW
Shu-Wen Mu, Yuan Dang, Shou-Sen Wang, Jian-Jun Gu
The occurrence and development of acute cerebrovascular diseases involves an inflammatory response, and high mobility group box protein 1 (HMGB1) is a pro-inflammatory factor that is expressed not only in the early-injury stage of disease, but also during the post-repair process. In the initial stage of disease, HMGB1 is released into the outside of the cell to participate in the cascade amplification reaction of inflammation, causing vasospasm, destruction of the blood-brain barrier and apoptosis of nerve cells...
September 2018: Biomedical Reports
https://www.readbyqxmd.com/read/30271319/hmgb1-a-common-biomarker-and-potential-target-for-tbi-neuroinflammation-epilepsy-and-cognitive-dysfunction
#15
REVIEW
Yam Nath Paudel, Mohd Farooq Shaikh, Ayanabha Chakraborti, Yatinesh Kumari, Ángel Aledo-Serrano, Katina Aleksovska, Marina Koutsodontis Machado Alvim, Iekhsan Othman
High mobility group box protein 1 (HMGB1) is a ubiquitous nuclear protein released by glia and neurons upon inflammasome activation and activates receptor for advanced glycation end products (RAGE) and toll-like receptor (TLR) 4 on the target cells. HMGB1/TLR4 axis is a key initiator of neuroinflammation. In recent days, more attention has been paid to HMGB1 due to its contribution in traumatic brain injury (TBI), neuroinflammatory conditions, epileptogenesis, and cognitive impairments and has emerged as a novel target for those conditions...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/30271090/the-effects-of-high-mobility-group-box-1-protein-on-peripheral-treg-th17-balance-in-patients-with-atherosclerosis
#16
Jia-Wang Ding, Tian Zhou, Xia-Xia Zheng, Xin-An Wang, Xiao-Hong Tong, Cai-Yun Luo, Zai-Qiang Zhang, Bin Yu
Background: Atherosclerosis (AS) is defined as chronic inflammation of the vessel wall. The major objective of the this study was to explore the mechanism of Treg/Th17 imbalance and the role of high mobility group box-1 protein (HMGB1) on the balance in AS. Methods: We detected the apoptotic ratios of Treg and Th17 cells in peripheral blood mononuclear cells (PBMCs) from subjects with AS and normal coronary arteries (NCA) by flow cytometry. The effects of recombinant HMGB1 (rHMGB1) on the proportion, apoptosis and differentiation of Treg and Th17 cells were analyzed using flow cytometry, qRT-PCR and ELISA...
September 2018: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/30260006/pingchuanning-decoction-attenuates-airway-inflammation-by-suppressing-autophagy-via-phosphatidylinositol-3-kinase-protein-kinase-b-mammalian-target-of-rapamycin-signaling-pathway-in-rat-models-of-asthma
#17
Xinheng Wang, Yating Gao, Qinjun Yang, Xiangming Fang, Zegeng Li
BACKGROUND: Pingchuanning decoction is a well-known traditional Chinese medicine for the treatment of airway inflammatory diseases, including asthma. However, the potential mechanism by which Pingchuanning decoction contributes to the amelioration of airway inflammation remains unknown. METHODS: A rat model of asthma was well established by inducing ovalbumin. Lipopolysaccharide-stimulated rat tracheal epithelial (RTE) cells were used as cellular model. Lung histopathology and goblet cell hyperplasia were assessed by hematoxylin-eosin (HE) and periodic acid Schiff staining, respectively...
September 27, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/30258438/emerging-role-of-hmgb1-in-the-pathogenesis-of-schistosomiasis-liver-fibrosis
#18
Amanda R R Vicentino, Vitor C Carneiro, Diego Allonso, Rafael de Freitas Guilherme, Claudia F Benjamim, Hílton A M Dos Santos, Fabíola Xavier, Alexandre Dos Santos Pyrrho, Juliana de Assis Silva Gomes, Matheus de Castro Fonseca, Rodrigo C de Oliveira, Thiago A Pereira, Leandro Ladislau, José R Lambertucci, Marcelo R Fantappié
In chronic schistosomiasis, liver fibrosis is linked to portal hypertension, which is a condition associated with high mortality and morbidity. High mobility group box 1 (HMGB1) was originally described as a nuclear protein that functions as a structural co-factor in transcriptional regulation. However, HMGB1 can also be secreted into the extracellular milieu under appropriate signal stimulation. Extracellular HMGB1 acts as a multifunctional cytokine that contributes to infection, injury, inflammation, and immune responses by binding to specific cell-surface receptors...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/30258050/hmgb1-promotes-erk-mediated-mitochondrial-drp1-phosphorylation-for-chemoresistance-through-rage-in-colorectal-cancer
#19
Chih-Yang Huang, Shu-Fen Chiang, William Tzu-Liang Chen, Tao-Wei Ke, Tsung-Wei Chen, Ying-Shu You, Chen-Yu Lin, K S Clifford Chao, Chih-Yang Huang
Dysfunctional mitochondria have been shown to enhance cancer cell proliferation, reduce apoptosis, and increase chemoresistance. Chemoresistance develops in nearly all patients with colorectal cancer, leading to a decrease in the therapeutic efficacies of anticancer agents. However, the effect of dynamin-related protein 1 (Drp1)-mediated mitochondrial fission on chemoresistance in colorectal cancer is unclear. Here, we found that the release of high-mobility group box 1 protein (HMGB1) in conditioned medium from dying cells by chemotherapeutic drugs and resistant cells, which triggered Drp1 phosphorylation via its receptor for advanced glycation end product (RAGE)...
September 26, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/30257702/the-effect-of-acute-respiratory-distress-syndrome-on-bone-marrow-derived-mesenchymal-stem-cells
#20
Ben Antebi, Kerfoot P Walker, Arezoo Mohammadipoor, Luis A Rodriguez, Robbie K Montgomery, Andriy I Batchinsky, Leopoldo C Cancio
BACKGROUND: It is known that, following a physiological insult, bone marrow-derived mesenchymal stem cells (MSCs) mobilize and home to the site of injury. However, the effect of injury on the function of endogenous MSCs is unknown. In this study, MSCs harvested from the bone marrow of swine with or without acute respiratory distress syndrome (ARDS) were assessed for their characteristics and therapeutic function. METHODS: MSCs were harvested from three groups of anesthetized and mechanically ventilated swine (n = 3 in each group): 1) no ARDS ('Uninjured' group); 2) ARDS induced via smoke inhalation and 40% burn and treated with inhaled epinephrine ('Injured Treated' group); and 3) ARDS without treatment ('Injured Untreated' group)...
September 26, 2018: Stem Cell Research & Therapy
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