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https://www.readbyqxmd.com/read/29438513/the-hmgb-protein-ixr1-interacts-with-ssn8-and-tdh3-involved-in-transcriptional-regulation
#1
Barreiro-Alonso Aida, Lamas-Maceiras Mónica, Cerdán M Esperanza, Ángel Vizoso-Vázquez
Ixr1 is a Saccharomyces cerevisiae transcriptional factor that extensively regulates the response to hypoxia and controls other important cellular functions and DNA repair. During aerobic growth, the Ixr1 repressor function is predominant on regulated promoters of hypoxic genes, although activator effects are also observed on other genes. During hypoxia, Ixr1 expression increases and the number of genes activated by Ixr1 also increase. In this work we demonstrate that the NH2-terminal region of Ixr1 is involved in transcriptional activation...
February 9, 2018: FEMS Yeast Research
https://www.readbyqxmd.com/read/29399172/loss-of-beclin-1-expression-in-ovarian-cancer-a-potential-biomarker-for-predicting-unfavorable-outcomes
#2
Toshiko Minamoto, Kentaro Nakayama, Kohei Nakamura, Hiroshi Katagiri, Razia Sultana, Tomoka Ishibashi, Masako Ishikawa, Hitomi Yamashita, Kaori Sanuki, Kouji Iida, Satoru Nakayama, Yoshiro Otsuki, Noriyuki Ishikawa, Satoru Kyo
The clinicopathological significance and prognostic value of the expression of proteins associated with autophagy, beclin 1 (BECN1), 1A/1B-light chain 3 (LC3) and high mobility group box-1 protein (HMGB-1), were investigated in patients with ovarian carcinoma, receiving combination chemotherapy with a platinum agent and a taxane. Immunohistochemical staining was performed for autophagy-associated proteins in tumor tissues from 141 patients with ovarian carcinoma. Clinical data were collected retrospectively by reviewing medical charts, and the association between protein expression, clinicopathological features and survival was investigated...
January 2018: Oncology Letters
https://www.readbyqxmd.com/read/29395576/reduced-hmgb1-suppresses-poly-i-c-induced-inflammation-in-keratinocytes
#3
Hideki Mori, Masamoto Murakami, Teruko Tsuda, Kenji Kameda, Ryo Utsunomiya, Kana Masuda, Ken Shiraishi, Xiuju Dai, Mikiko Tohyama, Hiroki Nakaoka, Koji Sayama
BACKGROUND: High mobility group box 1 (HMGB1) is a nuclear protein that stabilizes DNA and facilitates gene transcription. Additionally, cell stress or death induces the release of HMGB1 outside the cell membrane, where HMGB1 functions as an alarmin, causing an inflammatory response in combination with other cytokines, damage-associated molecular patterns (DAMPs), and pathogen-associated molecular patterns (PAMPs). OBJECTIVE: To evaluate the effect of reduced-HMGB1 (previously termed chemoattractive-HMGB1) on polyinosine-polycytidylic acid [poly(I:C)]-induced inflammation in normal human keratinocytes (NHKs)...
January 29, 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/29389558/anti-inflammatory-effect-of-cinnamaldehyde-and-linalool-from-the-leaf-essential-oil-of-cinnamomum-osmophloeum-kanehira-in-endotoxin-induced-mice
#4
Shih-Chieh Lee, Shih-Yun Wang, Chien-Chun Li, Cheng-Tzu Liu
Cinnamomum osmophloeum Kanehira is a Taiwan native plant that belongs to genus Cinnamomum and is also known as pseudocinnamomum or indigenous cinnamon. Its leaf is traditionally used by local people in cooking and as folk therapy. We previously demonstrated the chemical composition and anti-inflammatory effect of leaf essential oil of Cinnamomum osmophloeum Kanehira of linalool chemotype in streptozotocin-induced diabetic rats and on endotoxin-injected mice. The aim of the present study is to evaluate whether cinnamaldehyde and linalool the active anti-inflammatory compounds in leaf essential oil of Cinnamomum osmophloeum Kanehira...
January 2018: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/29370247/broad-adsorption-of-sepsis-related-pamp-and-damp-molecules-mycotoxins-and-cytokines-from-whole-blood-using-cytosorb%C3%A2-sorbent-porous-polymer-beads
#5
Maryann C Gruda, Karl-Gustav Ruggeberg, Pamela O'Sullivan, Tamaz Guliashvili, Andrew R Scheirer, Thomas D Golobish, Vincent J Capponi, Phillip P Chan
OBJECTIVE: Sepsis is defined as life-threatening organ dysfunction caused by a dysregulated host response to infection. In sepsis and septic shock, pathogen-associated molecular pattern molecules (PAMPS), such as bacterial exotoxins, cause direct cellular damage and/or trigger an immune response in the host often leading to excessive cytokine production, a maladaptive systemic inflammatory response syndrome response (SIRS), and tissue damage that releases DAMPs, such as activated complement and HMGB-1, into the bloodstream causing further organ injury...
2018: PloS One
https://www.readbyqxmd.com/read/29324261/platelet-toll-like-receptor-and-its-ligand-hmgb-1-expression-is-increased-in-the-left-atrium-of-atrial-fibrillation-patients
#6
Kadri Murat Gurses, Duygu Kocyigit, Muhammed Ulvi Yalcin, Hande Canpinar, Banu Evranos, Ugur Canpolat, Hikmet Yorgun, Levent Sahiner, Dicle Guc, Kudret Aytemir
BACKGROUND: Atrial fibrillation(AF) is the most common sustained arrhythmia. Its most feared sequelae are stroke and peripheral thromboembolism due to atrial thrombi formation. Mechanisms underlying the relationship between platelet activation and left atrial thrombi have not been clearly elucidated yet. We aimed to investigate whether immune-mediated platelet activation occurred in AF patients in this cross-sectional study. METHODS: Persistent and paroxysmal AF patients who underwent cryoballoon-based AF ablation between March 2015 and July 2016 were included as the patient group...
January 8, 2018: Cytokine
https://www.readbyqxmd.com/read/29260012/time-courses-of-plasma-il-6-and-hmgb-1-reflect-initial-severity-of-clinical-presentation-but-do-not-predict-poor-neurologic-outcome-following-subarachnoid-hemorrhage
#7
Heikki Kiiski, Jaakko Långsjö, Jyrki Tenhunen, Marika Ala-Peijari, Heini Huhtala, Mari Hämäläinen, Eeva Moilanen, Juha Öhman, Jukka Peltola
Objective: Patients with aneurysmal subarachnoid hemorrhage (aSAH) experience high mortality and morbidity. Neuroinflammation causes brain damage expansion after aSAH. Due to the complexity of the inflammatory response multiple biomarkers are needed to evaluate its' progression. We studied inflammatory process after aSAH by measuring two inflammatory biomarkers, interleukin-6 (IL-6) and high-mobility group box 1 (HMGB1) at simultaneous time-points after aSAH. Methods: In this prospective population-based study, IL-6 and HMGB1 were measured in aSAH patients (n = 47) for up to five days...
March 2017: ENeurologicalSci
https://www.readbyqxmd.com/read/29249869/short-term-postoperative-cognitive-dysfunction-and-inflammatory-response-in-patients-undergoing-cytoreductive-surgery-and-hyperthermic-intraperitoneal-chemotherapy-a-pilot-study
#8
Hui Yu, Rui Dong, Yayuan Lu, Xi Yang, Chang Chen, Zongze Zhang, Mian Peng
Objectives: To assess the association between short-term postoperative cognitive dysfuction (POCD) and inflammtory response in patients undergoing cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC). Design: A prospective cohort study. Setting: University medical centre. Participants: Fifty-one adult patients who had undergone CRS-HIPEC and twenty control participants. Measurements: The inflammatory marker levels in plasma and cognitive function were measured...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/29248428/irradiation-enhances-abscopal-anti-tumor-effects-of-antigen-specific-immunotherapy-through-regulating-tumor-microenvironment
#9
Ming-Cheng Chang, Yu-Li Chen, Han-Wei Lin, Ying-Cheng Chiang, Chi-Fang Chang, Shu-Feng Hsieh, Chi-An Chen, Wei-Zen Sun, Wen-Fang Cheng
Ionizing radiation therapy is a well-established method of eradicating locally advanced tumors. Here, we examined whether local RT enhanced the potency of an antigen-specific DNA vaccine, and we investigated the possible underlying mechanism. Using the HPV16 E6/E7+ syngeneic TC-1 tumor, we evaluated the combination of CTGF/E7 vaccination with local irradiation with regard to synergistic antigen-specific immunity and anti-tumor effects. Tumor-bearing mice treated with local RT (6 Gy twice weekly) and CTGF/E7 DNA vaccination exhibited dramatically increased numbers of E7-specific CD8+ cytotoxic T cell precursors, higher titers of anti-E7 Abs, and significantly reduced tumor size...
November 21, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/29201182/the-efficacy-of-gastrodin-in-combination-with-folate-and-vitamin-b12-on-patients-with-epilepsy-after-stroke-and-its-effect-on-hmgb-1-il-2-and-il-6-serum-levels
#10
Hao Zhou, Nuan Wang, Lei Xu, Hongli Huang, Chunyu Yu
This study evaluated the efficacy of gastrodin in combination with folate (FOL) and vitamin-B12 (V-B12) on patients with epilepsy after stroke (EAS) and its effect on high-mobility group protein B1 (HMGB-1), interleukin-1 (IL-1), and IL-6 serum levels. The clinical data of 92 EAS patients admitted for treatment between April, 2014 and March, 2016 were collected. These patients were randomly divided into control and observation groups (n=46 each) using computer software. Patients in the control group were administered only regular antiepileptic drugs, whereas observation group patients also received a combination of gastrodin, FOL and V-B12...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29198620/the-role-of-hmgb1-in-heart-transplantation
#11
REVIEW
Qianying Lv, Chao Li, Yarui Mo, Long He
There has been significant progress in the field of heart transplantation over the last 45 years. Although the role of adaptive immunity in heart allograft rejection has been extensively studied for decades, there is increasing evidence that suggests that the innate immune system also contributes to the development of heart allograft rejection. The high-mobility group box (HMGB) proteins, particularly HMGB1, are self-derived innate immune activators that have multiple functions in the regulation of immunity and inflammation...
November 30, 2017: Immunology Letters
https://www.readbyqxmd.com/read/29197515/fingolimod-anti-inflammatory-and-neuroprotective-effects-modulation-of-rage-axis-in-multiple-sclerosis-patients
#12
Zohara Sternberg, Channa Kolb, Kailash Chadha, Adam Nir, Raphael Nir, Rayan George, Joseph Johnson, Jinhee Yu, David Hojnacki
BACKGROUND: We investigated Fingolimod treatment effects on the RAGE (receptor for advanced glycation endproducts) axis in multiple sclerosis (MS) patients. The primary outcome of the study was whether Fingolimod treatment increases serum levels of the soluble RAGE isoforms, sRAGE and esRAGE - both being considered putative endogenous inhibitors of RAGE signaling. Additional variables were serum levels of RAGE ligands, the high mobility group box (HMGB)1 and pentosidine. METHODS: Serum levels of the study variables were measured by ELISA, and compared between baseline (before Fingolimod treatment) and 6 and 12 months post-drug treatment in 17 relapsing MS patients...
March 1, 2018: Neuropharmacology
https://www.readbyqxmd.com/read/29196961/%C3%AE-7-nachr-activation-has-an-opposite-effect-on-healing-of-covered-and-uncovered-wounds
#13
Jiao-Yong Li, Shu-Kun Jiang, Lin-Lin Wang, Meng-Zhou Zhang, Shuai Wang, Zhen-Fei Jiang, Yu-Li Liu, Hao Cheng, Miao Zhang, Rui Zhao, Da-Wei Guan
The α7 nicotinic acetylcholine receptor (α7-nAChR) is associated with inflammation, re-epithelialization, and angiogenesis in wound healing process. A recent study demonstrated that PNU-282987, a selective agonist of α7-nAChR, accelerates the repair of diabetic excisional wounds. Whether α7-nAChR activation promotes non-diabetic wounds healing is unknown. The aim of this study was to evaluate the effects of α7-nAChR activation on non-diabetic wound healing. The effects were evaluated in two wound models...
December 1, 2017: Inflammation
https://www.readbyqxmd.com/read/29194322/direct-peritoneal-resuscitation-reduces-intestinal-permeability-after-brain-death
#14
Jessica L Weaver, Paul J Matheson, Amy Matheson, Victoria Graham, Brian G Harbrecht, Cynthia D Downard, R Neal Garrison, Jason W Smith
BACKGROUND: The profound inflammatory response associated with brain death is frequently cited as the reason organs procured from brain dead donors are associated with worse graft function. The intestine releases inflammatory mediators in other types of shock, but its role is brain death has not been well-studied. Direct peritoneal resuscitation (DPR) improves visceral organ blood flow and reduces inflammation after hemorrhagic shock. We hypothesized that use of DPR would maintain intestinal integrity and reduce circulating inflammatory mediators after brain death...
February 2018: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29152323/new-melanocortin-like-peptide-of-e-coli-can-suppress-inflammation-via-the-mammalian-melanocortin-1-receptor-mc1r-possible-endocrine-like-function-for-microbes-of-the-gut
#15
Xiaoling Qiang, Anthony S Liotta, Joseph Shiloach, J C Gutierrez, Haichao Wang, Mahendar Ochani, Kanta Ochani, Huan Yang, Aviva Rabin, Derek LeRoith, Maxine A Lesniak, Markus Böhm, Christian Maaser, Klaus Kannengiesser, Mark Donowitz, Shervin Rabizadeh, Christopher J Czura, Kevin J Tracey, Mark Westlake, Aida Zarfeshani, Syed F Mehdi, Ann Danoff, Xueliang Ge, Suparna Sanyal, Gary J Schwartz, Jesse Roth
E. coli releases a 33 amino acid peptide melanocortin-like peptide of E. coli (MECO-1) that is identical to the C-terminus of the E. coli elongation factor-G (EF-G) and has interesting similarities to two prominent mammalian melanocortin hormones, alpha-melanocyte-stimulating hormone (alpha-MSH) and adrenocorticotropin (ACTH). Note that MECO-1 lacks HFRW, the common pharmacophore of the known mammalian melanocortin peptides. MECO-1 and the two hormones were equally effective in severely blunting release of cytokines (HMGB1 and TNF) from macrophage-like cells in response to (i) endotoxin (lipopolysaccharide) or (ii) pro-inflammatory cytokine HMGB-1...
2017: NPJ Biofilms and Microbiomes
https://www.readbyqxmd.com/read/29129476/pyroptosis-and-its-relationship-to-atherosclerosis
#16
REVIEW
Yuan-Jun Xu, Lei Zheng, Yan-Wei Hu, Qian Wang
Pyroptosis is a pro-inflammatory form of regulated cell death and is dependent on the enzymatic activity of inflammatory proteases that belong to the family of cysteine-dependent aspartate-specific proteases (caspases). Pyroptosis is morphologically, mechanistically, and pathophysiologically distinct from other forms of cell death, including apoptosis and necrosis. Pyroptosis is characterized by rapid plasma membrane rupture, with the consequent release of intracellular contents and pro-inflammatory mediators, including interleukin (IL)-1β, IL-18, and the alarmin HMGB-1...
November 10, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29115455/dioscin-inhibits-ischemic-stroke%C3%A2-induced-inflammation-through-inhibition-of-the-tlr4-myd88-nf%C3%A2-%C3%AE%C2%BAb-signaling-pathway-in-a-rat-model
#17
Shilin Zhu, Siyuan Tang, Feng Su
Diosgenin, as an essential natural steroidal saponin, can be extracted from numerous sources, primarily from fenugreek. It is an important raw material for the synthesis of steroid hormone drugs. It exhibits antitumor, anti‑inflammatory, antioxidation and several other significant pharmacologic actions, and is of high pharmaceutical value. In the present study, the activities and underlying mechanisms of dioscin in the inhibition of ischemic stroke in rats were investigated. Inflammatory responses wer analyzed using ELISA kits and caspase‑3 and caspase‑9 activity was analyzed using Caspase‑3 and caspase‑9 activity kits...
October 26, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29094325/the-expression-of-matrix-metalloproteinases-and-their-inhibitors-in-corneal-fibroblasts-by-alarmins-from-necrotic-corneal-epithelial-cells
#18
Akira Iwatake, Akira Murakami, Nobuyuki Ebihara
PURPOSE: Sterile ulceration is frequently observed in the cornea following persistent corneal epithelial damage. We examined the effect of alarmins released by necrotic corneal epithelial cells (HCE) on the production of matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) by corneal fibroblasts. METHODS: IL-1α and high-mobility group box 1 protein (HMGB1) released into the supernatant derived from necrotic HCE cells were measured with enzyme-linked immunosorbent assay (ELISA)...
November 1, 2017: Japanese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29065965/identification-of-specifically-activated-angiogenic-molecules-in-hmgb-1-induced-angiogenesis
#19
Won Kyu Kim, Yujin Kwon, Minhee Park, Seongju Yun, Ja-Young Kwon, Hoguen Kim
High-mobility group box-1 (HMGB-1) is expressed in almost all cells, and its dysregulated expression correlates with inflammatory diseases, ischemia, and cancer. Some of these conditions accompany HMGB-1-mediated abnormal angiogenesis. Thus far, the mechanism of HMGB-1-induced angiogenesis remains largely unknown. In this study, we performed time-dependent DNA microarray analysis of endothelial cells (ECs) after HMGB-1 or VEGF treatment. The pathway analysis of each gene set upregulated by HMGB-1 or VEGF showed that most HMGB-1-induced angiogenic pathways were also activated by VEGF, although the activation time and gene sets belonging to the pathways differed...
October 25, 2017: BMB Reports
https://www.readbyqxmd.com/read/29017437/high-expression-of-high-mobility-group-box-1-in-menstrual-blood-implications-for-endometriosis
#20
Keiko Shimizu, Yasuhiko Kamada, Ai Sakamoto, Miwa Matsuda, Mikiya Nakatsuka, Yuji Hiramatsu
Endometriosis is a benign gynecologic disease characterized by the presence of ectopic endometrium and associated with inflammation and immune abnormalities. However, the molecular basis for endometriosis is not well understood. To address this issue, the present study examined the expression of high-mobility group box (HMGB) 1 in menstrual blood to investigate its role in the ectopic growth of human endometriotic stromal cells (ESCs). A total of 139 patients were enrolled in this study; 84 had endometriosis and 55 were nonendometriotic gynecological patients (control)...
November 2017: Reproductive Sciences
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