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Huili Wei, Hua Qu, Hang Wang, Huacong Deng
Aims. To detect the association of C1q/TNF-related protein-3 (CTRP-3) and high-mobility group box-1 (HMGB-1) in subjects with prediabetes (pre-DM) and newly diagnosed type 2 diabetes (nT2DM). Methods. 224 eligible participants were included. The 75 g oral glucose tolerance test (OGTT) and several clinical parameters of metabolic disorders and cytokines were measured. All participants were divided into three groups: normal glucose tolerance (NGT, n = 62), pre-DM (n = 111), and nT2DM group (n = 56). Results...
2016: Journal of Diabetes Research
Jianjun Gu, Rong Xu, Yaxing Li, Jianhe Zhang, Shousen Wang
To explore the effects of microRNA-218 (miR-218) on glioma cell lines and the related mechanism. U251 and U87 cells were transfected with negative control, miR-218 mimic or miR-218 inhibitor using lipofectamine 2000. The expressions of mRNA and proteins were detected with qRT-PCR and Western blotting. The cell proliferation, apoptosis, migration and invasion were studied using MTT, flow cytometry, Transwell assay and scratch-wound assay, respectively. The targeting effect of HMGB1 by miR-218 was measured with luciferase reporter assay...
2016: American Journal of Translational Research
J X Ma, M Zhou, L L Xiao
No abstract text is available yet for this article.
July 20, 2016: Chinese Journal of Industrial Hygiene and Occupational Diseases
Yasodha Krishnasamy, Venkat K Ramshesh, Monika Gooz, Rick G Schnellmann, John J Lemasters, Zhi Zhong
BACKGROUND AND AIM: Because ethanol consumption is commonly associated with a high cholesterol diet, we examined whether combined consumption of ethanol and high cholesterol increases liver injury and fibrosis. METHODS: Male C57BL/6J mice were fed diets containing: 1) 35% of calories from corn oil (CTR), 2) CTR plus 0.5% (w/v) cholesterol (Chol), 3) CTR plus ethanol (27% of calories) (EtOH), or 4) EtOH+Chol for 3 months. RESULTS: In mice fed Chol or EtOH alone, ALT increased to ~160 U/L, moderate hepatic steatosis occurred, and leukocyte infiltration, necrosis, and apoptosis increased modestly, but no observable fibrosis developed...
2016: PloS One
Yong-Jie Lian, Hong Gong, Teng-Yun Wu, Wen-Jun Su, Yi Zhang, Yuan-Yuan Yang, Wei Peng, Ting Zhang, Jiang-Rui Zhou, Chun-Lei Jiang, Yun-Xia Wang
High mobility group box 1 (HMGB1) has been implicated as a key factor in several neuroinflammatory conditions. Our previous study suggested that the release of central HMGB1 acts as a late-phase mediator in lipopolysaccharide (LPS)-induced depression. Recent findings indicate that the redox state of HMGB1 is a critical determinant of its immunomodulatory properties. Here, we aimed to investigate the potential mechanisms that link the redox states of HMGB1 to depression in mice. Distinct redox forms of recombinant HMGB1 (rHMGB1) were used that included fully reduced HMGB (fr-HMGB1), which acted as a chemokine, and disulfide-HMGB1 (ds-HMGB1), which possessed cytokine activity...
September 16, 2016: Brain, Behavior, and Immunity
Ari Rouhiainen, Xiang Zhao, Päivi Vanttola, Kui Qian, Evgeny Kulesskiy, Juha Kuja-Panula, Kathleen Gransalke, Mikaela Grönholm, Emmanual Unni, Marvin Meistrich, Li Tian, Petri Auvinen, Heikki Rauvala
HMGB4 is a new member in the family of HMGB proteins that has been characterized in sperm cells, but little is known about its functions in somatic cells. Here we show that HMGB4 and the highly similar rat Transition Protein 4 (HMGB4L1) are expressed in neuronal cells. Both proteins had slow mobility in nucleus of living NIH-3T3 cells. They interacted with histones and their differential expression in transformed cells of the nervous system altered the post-translational modification statuses of histones in vitro...
September 9, 2016: Scientific Reports
M Lu, J Bai, B Xu, Q Y Sun, F X Wei, X F Tang, H F Zhang, J Li, G L Wang, Q Q Yin, S Y Li
Ammonia in poultry houses not only affects worker health but also induces a variety of poultry diseases. Alpha-lipoic acid (LA) is an effective antioxidant that protects cells against oxidative injury during various toxic and pathological processes. This study was designed to evaluate the mitigating effects of LA supplementation on ammonia stress and hepatic proteome changes in broilers. Male broilers (22 d old) were allocated to 3 groups: (1) a control group without ammonia stress (CTRL); (2) exposure to 70 ppm ammonia (AM); and (3) exposure to 70 ppm ammonia and dietary administration of 300 mg/kg LA (AM+LA)...
September 2, 2016: Poultry Science
Zhanke Wang, Rongjian Chen, Zhongzhen Zhu, Xiaoyun Zhang, Shiliang Wang
BACKGROUND: Inflammation response and oxidative stress promote the occurrence and development of multiple-organ dysfunction syndrome (MODS). METHODS: Eighty MODS rats with third-degree burns were divided randomly into 4 groups: insulin, ethyl pyruvate (EP), insulin combined with EP, and control. Blood levels of glucose, alanine aminotransferase (ALT), creatine (CRE), creatine kinase (CK), tumor necrosis factor α (TNF-α), high-mobility group box 1 (HMGB-1), malondialdehyde (MDA), and total antioxidant capacity (TAC) before as well as 1, 3, 5, and 7 days after burns were measured...
August 9, 2016: American Journal of Emergency Medicine
B Yang, W D Zhang, Y M Xia, Z P Zhang, L Li, L Zhang, W C Wang, Z D Wang, X P Li
OBJECTIVE: To analyze the role of oxycodone in acute lung injury(ALI) induced by lipopolysaccharide (LPS) in rats. METHODS: Male SD rats were randomly allocated into 4 groups: control group, oxycodone group, LPS group, LPS+ oxycodone group. The effects of oxycodone on LPS-induced neutrophils influx, inflammatory cytokines release, pulmonary edema, apoptotic cell were examined. In addition, the toll-like receptor 4 (TLR4) in lung tissues was detected by Western blotting...
August 16, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Hongfeng Chen, Jason J Workman, Brian D Strahl, R Nicholas Laribee
BACKGROUND: How cells respond and adapt to environmental changes, such as nutrient flux, remains poorly understood. Evolutionarily conserved nutrient signaling cascades can regulate chromatin to contribute to genome regulation and cell adaptation, yet how they do so is only now beginning to be elucidated. In this study, we provide evidence in yeast that the conserved nutrient regulated target of rapamycin complex 1 (TORC1) pathway, and the histone H3N-terminus at lysine 37 (H3K37), function collaboratively to restrict specific chromatin-binding high mobility group box (HMGB) proteins to the nucleus to maintain cellular homeostasis and viability...
2016: Epigenetics & Chromatin
Luis C Berrocal-Almanza, Surabhi Goyal, Abid Hussain, Tilman E Klassert, Dominik Driesch, Zarko Grozdanovic, Gadamm Sumanlatha, Niyaz Ahmed, Vijayalakshmi Valluri, Melanie L Conrad, Nickel Dittrich, Ralf R Schumann, Birgit Lala, Hortense Slevogt
Pulmonary tuberculosis (PTB) results in lung functional impairment and there are no surrogate markers to monitor the extent of lung involvement. We investigated the clinical significance of S100A12 and soluble receptor for advanced glycation end-products (sRAGE) for predicting the extent of lung involvement. We performed an observational study in India with 119 newly diagnosed, treatment naïve, sputum smear positive, HIV-negative PTB patients and 163 healthy controls. All patients were followed-up for six months...
2016: Scientific Reports
Mizuki Kuramochi, Takeshi Izawa, Munmun Pervin, Alexandra Bondoc, Mitsuru Kuwamura, Jyoji Yamate
Drug-induced liver injury (DILI) is a common problem in human medicine and it is a major reason to withdraw marketed drugs. However, the mechanism of DILI is still less known. Damage-associated molecular patterns (DAMPs), such as high-mobility group boxes (HMGBs), S100 proteins and heat shock proteins (HSPs), are released from injured or necrotic cells, bind to toll-like receptors (TLRs) and modulate inflammatory reactions. Here we investigated the kinetics of DAMPs, TLRs and MHC class II in a rat model of DILI with thioacetamide (TAA)...
September 2016: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
Adrita Roy, Arkajyoti Dutta, Dipan Roy, Payel Ganguly, Ritesh Ghosh, Rajiv K Kar, Anirban Bhunia, Jayanta Mukhobadhyay, Shubho Chaudhuri
ARID-HMG DNA-binding proteins represent a novel group of HMG-box containing protein family where the AT-rich interaction domain (ARID) is fused with the HMG-box domain in a single polypeptide chain. ARID-HMG proteins are highly plant specific with homologs found both in flowering plants as well as in moss such as Physcomitrella. The expression of these proteins is ubiquitous in plant tissues and primarily localises in the cell nucleus. HMGB proteins are involved in several nuclear processes, but the role of ARID-HMG proteins in plants remains poorly explored...
October 2016: Plant Molecular Biology
Xiaodi Tian, Zhong Wang, Gang Chen
High mobility group box-1 (HMGB1), a highly conserved nonhistone nuclear protein, is widely expressed in most eukaryotic cells including neural cells. Nuclear HMGB1 stabilize nucleosome formation and facilitates gene transcription. HMGB1 can be passively released from necrotic cells or actively secreted from stimulated immune cells. Extracellular HMGB1 interacts with receptors, including the receptor for advanced glycation endproducts (RAGEs), Toll-like receptor 2 (TLR2) and TLR4. After brain injury, HMGB1 is released early from neural cells and contribute to the early stages of the inflammatory response...
August 8, 2016: Current Drug Delivery
Zhao Xin-Peng, Hu Yong-Hua, Liu Yong, Wang Jing-Jing, Wang Guang-Hua, Wang Ren-Jie, Zhang Min
High-mobility group box (HMGB) 1 is a chromosomal protein that plays critical roles in DNA transcription, replication and repair. In addition, HMGB1 functions as a pro-inflammatory molecule in many vertebrates and invertebrates. In teleosts, very limited studies of HMGB1 have been reported. In this study, we identified a HMGB1 homologue (SsHMGB1) from black rockfish (Sebastes schlegelii) and analyzed its structure, expression and biological function. The open reading frame of SsHMGB1 is 621 bp, with a 5'-untranslated region (UTR) of 62 bp and a 3'-UTR of 645 bp...
September 2016: Fish & Shellfish Immunology
Valeria Bortolotto, Mariagrazia Grilli
Since its initial discovery, current understanding on the functional role of the Receptor for Advanced Glycation End-products (RAGE) in physiology and in pathology has impressively grown, especially in consideration of its large ligand repertoire (AGEs, HMGB-1, β amyloid, S100B/S100A12) and its potential involvement in the pathophysiology of several chronic human disorders. Downstream RAGE engagement by its ligands, NF-κB signaling activation has been demonstrated in several cell phenotypes, including neurons and glia...
August 3, 2016: CNS & Neurological Disorders Drug Targets
K Kadono, Y Uchida, H Hirao, T Miyauchi, T Watanabe, S Ueda, A Kanazawa, A Mori, H Okajima, H Terajima, S Uemoto
Liver ischemia-reperfusion injury (IRI) is an important problem in liver transplantation. Thrombomodulin (TM), an effective drug for disseminated intravascular coagulation, is also known to exhibit anti-inflammatory effect through binding to high mobility box-1 protein (HMGB-1) known as a pro-inflammatory mediator. Here we examined the effect of recombinant human TM (rTM) on partial warm hepatic IRI model in WT and toll-like receptor-4 (TLR-4) KO mice focusing on HMGB-1/TLR-4 axis. As in vitro experiments, peritoneal macrophages were stimulated with recombinant HMGB-1 protein...
July 28, 2016: American Journal of Transplantation
Keisuke Kakisaka, Kojiro Kataoka, Yuji Suzuki, Yohei Okada, Yuichi Yoshida, Hidekatsu Kuroda, Yasuhiro Takikawa
BACKGROUND & AIMS: The aim of this study was to investigate the clinical characteristics and pathophysiology of drug-induced liver injury (DILI) - acute liver failure (ALF). METHODS: The patients with acute liver injury (ALI) including ALF from 2009 to 2014 were analyzed. The hepatic encephalopathy (HE) development rate was compared with the findings from a national survey in Japan. The serum cytokines levels and the findings of a liver function test were evaluated in the DILI patients...
October 2016: Cytokine
Christopher A Adin, Zachary C VanGundy, Tracey L Papenfuss, Feng Xu, Mostafa Ghanem, Jonathan Lakey, Gregg A Hadley
Bilirubin has been recognized as a powerful cytoprotectant when used at physiologic doses and was recently shown to have immunomodulatory effects in islet allograft transplantation, conveying donor specific tolerance in a murine model. We hypothesized that bilirubin, an antioxidant, acts to suppress the innate immune response to islet allografts through two mechanisms: 1) by suppressing graft release of damage associated molecular patterns (DAMPs) and inflammatory cytokines, and 2) by producing a tolerogenic phenotype in antigen presenting cells...
July 7, 2016: Cell Transplantation
Dong-Jiao Wang, Ju-Juan Wang, Meng Song, Xin Gao, Li-Min Duan, Tian Tian, Hong-Xia Qiu
OBJECTIVE: To investigate the expression levels and clinical significance of serum high mobility group box 1 (HMGB-1) in patients with secondary hemophagocytic lymphohistiocytosis (sHLH). METHODS: Serum HMGB-1 levels were determined by using enzyme linked immunosorbent assays (ELISA) in 51 sHLH patients and 15 healthy contrlols. Other laboratory data, including soluble interleukin-2 receptor (sCD25), white blood cells (WBC), hemoglobin (Hb), platelet (Plt), fibrinogen (FIB), lactate dehydrogenase (LDH), triglyceride (TG), alanine transaminase (ALT), aspartate aminotransferase (AST), serum ferritin (SF), C reactive protein (CRP), and blood sedimentation rate (ESR) were also collected...
June 2016: Zhongguo Shi Yan Xue Ye Xue za Zhi
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