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https://www.readbyqxmd.com/read/29693145/icariin-promotes-stable-chondrogenic-differentiation-of-bone-marrow-mesenchymal-stem-cells-in-self%C3%A2-assembling-peptide-nanofiber-hydrogel-scaffolds
#1
Zhicong Wang, Kaihua Li, Huijun Sun, Ji Wang, Zhuodong Fu, Mozhen Liu
Icariin, a traditional Chinese medicine, has previously been demonstrated to promote chondrogenesis of bone marrow mesenchymal stem cells (BMSCs) in traditional 2D cell culture. The present study investigated whether icariin has the potential to promote stable chondrogenic differentiation of BMSCs without hypertrophy in a 3D microenvironment. BMSCs were cultivated in a self‑assembling peptide nanofiber hydrogel scaffold in chondrogenic medium for 3 weeks. Icariin was added to the medium throughout the culture period at concentrations of 1x10‑6 M...
April 23, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29690740/-effects-of-exogenous-high-mobility-group-protein-box-1-on-angiogenesis-in-ischemic-zone-of-early-scald-wounds-of-rats
#2
L Dai, X Guo, H J Huang, X M Liao, X Q Luo, D Li, H Zhou, X C Gao, M Y Tan
Objective: To observe effects of exogenous high mobility group protein box 1 (HMGB1) on angiogenesis in ischemic zone of early scald wounds of rats. Methods: Thirty-six Sprague-Dawley rats were divided into HMGB1 group and simple scald (SS) group according to the random number table, with 18 rats in each group. Comb-like copper mould was placed on the back of rats for 20 s after being immersed in 100 ℃ hot water for 3 to 5 min to make three ischemic zones of wound. Immediately after scald, rats in HMGB1 group were subcutaneously injected with 0...
April 20, 2018: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/29686994/cell-free-dna-high-mobility-group-box-1-and-procalcitonin-concentrations-in-dogs-with-gastric-dilatation-volvulus-syndrome
#3
Roberta Troia, Massimo Giunti, Stefano Calipa, Robert Goggs
Canine gastric dilatation-volvulus (GDV) is a life-threatening disease characterized by extensive tissue ischemia, tissue hypoperfusion, and systemic inflammation. Biomarkers that better reflect the severity of gastric necrosis and systemic inflammation would aid clinicians in the management of these patients. This study aimed to investigate the prognostic significance of cell-free DNA (cfDNA), high-mobility group box-1 (HMGB1), and procalcitonin (PCT) in dogs with GDV. Concentrations of cfDNA, HMGB1, and PCT were measured in citrated plasma samples collected from 29 dogs with GDV at hospital admission...
2018: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/29680657/sirt1-s-nitrosylation-induces-acetylation-of-hmgb1-in-lps-activated-raw264-7-cells-and-endotoxemic-mice
#4
Young Min Kim, Eun Jung Park, Hye Jung Kim, Ki Churl Chang
Excessive inflammation plays a detrimental role in endotoxemia. A recent study indicated that alarmins such as high mobility group box 1 (HMGB1) have drawn attention as therapeutic targets of sepsis. Post-translational modification (i.e., acetylation of lysine residues) of HMGB1 leads to the release of HMGB1 into the cellular space, operating as a warning signal that induces inflammation. Sirtuin 1 (SIRT1) has been shown to negatively regulate HMGB1 hyperacetylation and its extracellular release in sepsis. Therefore, we hypothesized that the S-nitrosylation (SNO) of SIRT1 may disrupt the ability of SIRT1 to negatively regulate the hyperacetylation of HMGB1...
April 19, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29679761/expression-profiling-and-microbial-ligand-binding-analysis-of-high-mobility-group-box-1-hmgb1-in-turbot-scophthalmus-maximus-l
#5
Xin Cai, Chengbin Gao, Baofeng Su, Fenghua Tan, Ning Yang, Guodong Wang
High-mobility group box 1 (HMGB1), a highly conserved DNA-binding protein, was involved in nucleosome formation and transcriptional regulation, and can also act as an extracellular cytokine to trigger inflammation and immune responses. In this study, we identified a HMGB1 gene in turbot (Scophthalmus maximus L.). The full-length SaHMGB1 cDNA includes an open reading frame of 615 bp which encoded a 204 amino acid polypeptide with an estimated molecular mass of 23.19°kDa. SaHMGB1 was most closely related to several fish HMGB1 and shared 74...
April 18, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29678169/omega-3-polyunsaturated-fatty-acid-attenuates-the-inflammatory-response-by-modulating-microglia-polarization-through-sirt1-mediated-deacetylation-of-the-hmgb1-nf-%C3%AE%C2%BAb-pathway-following-experimental-traumatic-brain-injury
#6
Xiangrong Chen, Chunnuan Chen, Sining Fan, Shukai Wu, Fuxing Yang, Zhongning Fang, Huangde Fu, Yasong Li
BACKGROUND: Microglial polarization and the subsequent neuroinflammatory response are contributing factors for traumatic brain injury (TBI)-induced secondary injury. High mobile group box 1 (HMGB1) mediates the activation of the NF-κB pathway, and it is considered to be pivotal in the late neuroinflammatory response. Activation of the HMGB1/NF-κB pathway is closely related to HMGB1 acetylation, which is regulated by the sirtuin (SIRT) family of proteins. Omega-3 polyunsaturated fatty acids (ω-3 PUFA) are known to have antioxidative and anti-inflammatory effects...
April 20, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29676511/role-of-the-high-mobility-group-box-1-signalling-axes-via-the-receptor-for-advanced-glycation-end-products-and-toll-like-receptor-4-in-the-immunopathology-of-oral-lichen-planus-a-potential-drug-target
#7
Abdelhakim Salem, Rabeia Almahmoudi, Mari Vehviläinen, Tuula Salo
High mobility group box 1 (HMGB1) is an extremely conserved DNA-binding protein that stabilizes nucleosomes and facilitates gene transcription in mammalian cells. When released extracellularly, HMGB1 becomes an alarmin that can mediate systemic diseases. High mobility group box 1 signals via two main receptors: receptor for advanced glycation end-products (RAGE) and toll-like receptor-4 (TLR4). We hypothesized that HMGB1 expression is increased in patients with oral lichen planus (OLP) relative to healthy controls...
April 20, 2018: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/29676481/high-mobility-group-box-1-in-parkinson-s-disease-from-pathogenesis-to-therapeutic-approaches
#8
REVIEW
Efthalia Angelopoulou, Christina Piperi, Athanasios G Papavassiliou
Parkinson's disease (PD) presents the second most common neurodegenerative disorder with largely unknown pathogenesis and inefficient therapeutic management. Accumulating data indicate that neuroinflammation, autophagy impairment, α-synuclein aggregation and mitochondrial dysfunction may contribute to PD onset; however the molecular mechanisms underlying these pathophysiological processes are still under elucidation. Interestingly, recent evidence has indicated that High-mobility group box 1 (HMGB1), a DNA-binding protein that can be actively secreted by inflammatory cells and passively released by necrotic cells may play a key role in PD pathogenesis...
April 20, 2018: Journal of Neurochemistry
https://www.readbyqxmd.com/read/29675369/boxb-mediate-balb-c-mice-corneal-inflammation-through-a-tlr4-myd88-dependent-signaling-pathway-in-aspergillus-fumigatus-keratitis
#9
Min Liu, Cui Li, Gui-Qiu Zhao, Jing Lin, Cheng-Ye Che, Qiang Xu, Qian Wang, Rui Xu, Ya-Wen Niu
AIM: To investigate whether high-mobility group box 1 (HMGB1) Boxb exacerbates BALB/c mice corneal immune responses and inflammatory through the Toll-like receptor 4 (TLR4)/myeloid differentiation primary response 88 (MyD88)-dependent signaling pathway in Aspergillus fumigatus ( A. fumigatus ) keratitis. METHODS: The mice corneas were pretreated with phosphate buffer saline (PBS), Boxb before A. fumigatus infection. The abdominal cavity extracted macrophages were pretreated with PBS, Boxb, TLR4 inhibitor (CLI-095), Dimethyl sulfoxide (DMSO) separately before A...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29675023/increased-plasma-levels-of-danger-associated-molecular-patterns-are-associated-with-immune-suppression-and-postoperative-infections-in-patients-undergoing-cytoreductive-surgery-and-hyperthermic-intraperitoneal-chemotherapy
#10
Guus P Leijte, Hettie Custers, Jelle Gerretsen, Amon Heijne, Johannes Roth, Thomas Vogl, Gert J Scheffer, Peter Pickkers, Matthijs Kox
Introduction: Danger-associated molecular patterns (DAMPs) can elicit immune responses and may subsequently induce an immune-suppressed state. Previous work showed that increased plasma levels of DAMPs are associated with immune suppression and increased susceptibility toward infections in trauma patients. Like trauma, major surgical procedures, such as cytoreductive surgery (CRS) combined with hyperthermic intraperitoneal chemotherapy (HIPEC), are also thought to cause profound DAMP release...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29674665/the-proximal-tubular-%C3%AE-7-nicotinic-acetylcholine-receptor-attenuates-ischemic-acute-kidney-injury-through-akt-pkc-signaling-mediated-ho-1-induction
#11
Hwajin Kim, So Ra Kim, Jihyun Je, Kyuho Jeong, Sooji Kim, Hye Jung Kim, Ki Churl Chang, Sang Won Park
Activation of the α7 nicotinic acetylcholine receptor (α7nAChR) has been shown to attenuate excessive inflammation by inhibiting proinflammatory cytokines during ischemia-reperfusion (IR) injury; however, the underlying kidney-specific molecular mechanisms remain unclear. The protective action of α7nAChR against renal IR injury was investigated using a selective α7nAChR agonist and antagonist. α7nAChR activation reduced plasma creatinine levels and tubular cell damage, whereas α7nAChR inhibition aggravated the IR-induced phenotype...
April 20, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29674451/fully-reduced-hmgb1-accelerates-the-regeneration-of-multiple-tissues-by-transitioning-stem-cells-to-g-alert
#12
Geoffrey Lee, Ana Isabel Espirito Santo, Stefan Zwingenberger, Lawrence Cai, Thomas Vogl, Marc Feldmann, Nicole J Horwood, James K Chan, Jagdeep Nanchahal
A major discovery of recent decades has been the existence of stem cells and their potential to repair many, if not most, tissues. With the aging population, many attempts have been made to use exogenous stem cells to promote tissue repair, so far with limited success. An alternative approach, which may be more effective and far less costly, is to promote tissue regeneration by targeting endogenous stem cells. However, ways of enhancing endogenous stem cell function remain poorly defined. Injury leads to the release of danger signals which are known to modulate the immune response, but their role in stem cell-mediated repair in vivo remains to be clarified...
April 19, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29673663/hmgb1-rage-signaling-pathway-in-pprom
#13
Huan Yan, Linlin Zhu, Zhan Zhang, Hong Li, Pengyun Li, Yan Wang, Maodong Leng
OBJECTIVE: Increased inflammation of the placenta is considered as a risk factor and a promoter of preterm premature rupture of the membranes (pPROM). High-mobility group box 1 (HMGB1) is a recently identified inflammatory cytokine, and HMGB1-RAGE signaling pathway has been associated with many pathophysiological processes. This study aims to reveal the mechanisms of HMGB1-RAGE signaling pathway in pPROM. MATERIALS AND METHODS: The mRNA levels of relative gene of HMGB1 pathway, HMGB1, RAGE, NF-κBp65, MMP-9 and MMP-2, were analyzed by real-time PCR in placentas collected from 60 normal term women, 60 women with PROM and 60 women with pPROM...
April 2018: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29670828/high-expression-of-the-hmgb1-tlr4-axis-and-its-downstream-signaling-factors-in-patients-with-parkinson-s-disease-and-the-relationship-of-pathological-staging
#14
Yi Yang, Chenyang Han, Li Guo, Qiaobin Guan
Objective: To detect the expression of high-mobility group box protein 1 (HMGB1) and toll-like receptor 4 (TLR4) and their downstream signaling factors-myeloid differentiation factor 88 (MyD88), nuclear factor kappa B (NF-κB), and tumor necrosis factor alpha (TNF-α)-in the sera of patients with Parkinson's disease (PD) in order to evaluate the relationship of the HMGB1-TLR4 axis with PD development and progression. Methods: The serum HMGB1 and TLR4 protein levels of 120 patients with PD and 100 healthy volunteers were measured using double-antibody sandwich ELISA, and their correlations with PD staging, disease duration, drug treatment effectiveness, and clinical classification were analyzed...
April 2018: Brain and Behavior
https://www.readbyqxmd.com/read/29670673/pm2-5-induced-the-expression-of-fibrogenic-mediators-via-hmgb1-rage-signaling-in-human-airway-epithelial-cells
#15
Weifeng Zou, Fang He, Sha Liu, Jinding Pu, Jinxing Hu, Qing Sheng, Tao Zhu, Tianhua Zhu, Bing Li, Pixin Ran
Background: The aim of the present study was to test whether fine particulate matter (PM2.5) induces the expression of platelet-derived growth factor-AB (PDGF-AB), PDGF-BB, and transforming growth factor- β 1 (TGF- β 1) in human bronchial epithelial cells (HBECs) in vitro via high-mobility group box 1 (HMGB1) receptor for advanced glycation end products (RAGE) signaling. Methods: Sprague-Dawley rats were exposed to motor vehicle exhaust (MVE) or clean air. HBECs were either transfected with a small interfering RNA (siRNA) targeting HMGB1 or incubated with anti-RAGE antibodies and subsequently stimulated with PM2...
2018: Canadian Respiratory Journal: Journal of the Canadian Thoracic Society
https://www.readbyqxmd.com/read/29666625/dying-to-be-noticed-epigenetic-regulation-of-immunogenic-cell-death-for-cancer-immunotherapy
#16
REVIEW
Brianne Cruickshank, Michael Giacomantonio, Paola Marcato, Sherri McFarland, Jonathan Pol, Shashi Gujar
Immunogenic cell death (ICD) activates both innate and adaptive arms of the immune system during apoptotic cancer cell death. With respect to cancer immunotherapy, the process of ICD elicits enhanced adjuvanticity and antigenicity from dying cancer cells and consequently, promotes the development of clinically desired antitumor immunity. Cancer ICD requires the presentation of various "hallmarks" of immunomodulation, which include the cell-surface translocation of calreticulin, production of type I interferons, and release of high-mobility group box-1 and ATP, which through their compatible actions induce an immune response against cancer cells...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29666335/identification-molecular-characterization-and-analysis-of-the-expression-pattern-of-soxf-subgroup-genes-the-yellow-river-carp-cyprinus-carpio
#17
Tingting Liang, Yongfang Jia, Ruihua Zhang, Qiyan Du, Zhongjie Chang
Sox7, Sox17 and Sox18 are the members of the Sry-related high-mobility group box family (SoxF) of transcription factors. SoxF factors regulate endothelial cell fate as well as development and differentiation of blood cells and lymphatic vessels. There is very less information about the functions of these genes in fish. We obtained the full-length cDNA sequence of SoxF genes including Sox7, Sox17 and Sox18 in Cyprinus carpio, where Sox7 and Sox18 had two copies. The construction of a phylogenetic tree showed that these genes were homologous to the genes in other species...
March 2018: Journal of Genetics
https://www.readbyqxmd.com/read/29665925/-expression-of-hmgb1-in-spleen-of-adult-patients-with-chronic-and-refractory-immune-thrombocytopenia-and-its-significance
#18
Peng-Feng Yang, Guo-Yang Zhang, Hong-Yun Liu, Shuang-Feng Xie, Xiu-Ju Wang, Xiao-Yan Liu, Jue Wang, Xin-Yuan Chen, Shuo Yang, Li-Ping Ma
OBJECTIVE: To investigate the expression and clinical significance of high mobility group box 1(HMGB1) in spleen of adult patients with chronic and refractory immune thrombocytopenia(ITP). METHODS: Twenty chronic and refactory ITP patients received splenectomy were enrolled in ITP group and 20 cases of traumatic spleen rupture were enrolled in control group. The splenectomy efficacy in ITP patients was analyzed retrospectively. The HMGB1 expression in spleen tissue was detected by immunohistochemistry, and the correlation between different expression levels of HMGB1 and splenectomy efficacy were analysed...
April 2018: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29665052/the-role-of-high-mobility-group-protein-box-1-in-lung-cancer
#19
Xiao-Jin Wu, Yuan-Yuan Chen, Chan-Chan Gong, Dong-Sheng Pei
High-mobility group protein box 1(HMGB1)is a ubiquitous highly conserved nuclear protein. Acting as a chromatin-binding factor, HMGB1 binds to DNA and plays an important role in stabilizing nucleosome formation, facilitating gene transcription, DNA repairing, inflammation, cell differentiation, and regulating the activity of steroid hormone receptors. Currently, HMGB1 is discovered to be related to development, progression, and targeted therapy of lung cancer, which makes it an attractive biomarker, and therapeutic target...
April 17, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29663989/-high-mobility-group-box-1-contributes-to-the-endoplasmic-reticulum-stress-of-liver-in-rats-with-trauma
#20
Qingjie Zhang, Jianfeng Lu, Xuehao Li, Yichang Liu, Guoqing Liu, Xinhua Han, Zhenyong Gu
OBJECTIVE: To investigate the role of high mobility group box 1 (HMGB1) in hepatic endoplasmic reticulum stress (ERS) in rats with trauma. METHODS: Sixty SPF Sprague-Dawley (SD) rats were randomly divided into groups (n = 6). The rat model of liver injury following traumatic stress was established by continuous compressing the bilateral hind-limbs of rats for 3 hours and then intermittent compressing and decompressing for 30 minutes respectively three times with standard weight of 15 kg...
April 2018: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
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