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Heat shock protein 70

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https://www.readbyqxmd.com/read/29235112/heat-shock-protein-70-and-tumor-infiltrating-nk-cells-as-prognostic-indicators-for-patients-with-squamous-cell-carcinoma-of-the-head-and-neck-after-radiochemotherapy-a-multicentre-retrospective-study-of-the-german-cancer-consortium-radiation-oncology-group
#1
Stefan Stangl, Nikoletta Tontcheva, Wolfgang Sievert, Maxim Shevtsov, Minli Niu, Thomas E Schmid, Steffi Pigorsch, Stephanie E Combs, Bernhard Haller, Panagiotis Balermpas, Franz Rödel, Claus Rödel, Emmanouil Fokas, Mechthild Krause, Annett Linge, Fabian Lohhaus, Michael Baumann, Inge Tinhofer, Volker Budach, Martin Stuschke, Anca-Ligia Grosu, Amir Abdollahi, Jürgen Debus, Claus Belka, Cornelius Maihöfer, David Mönnich, Daniel Zips, Gabriele Multhoff
Tumor cells frequently overexpress heat shock protein 70 (Hsp70) and present it on their cell surface, where it can be recognized by pre-activated NK cells. In this retrospective study the expression of Hsp70 was determined in relation to tumor-infiltrating CD56+ NK cells in formalin-fixed paraffin embedded (FFPE) tumor specimens of patients with SCCHN (N=145) as potential indicators for survival and disease recurrence. All patients received radical surgery and postoperative cisplatinum-based radiochemotherapy (RCT)...
December 13, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29228702/lncrna-and-mrna-profiling-during-activation-of-tilapia-macrophages-by-hsp70-and-streptococcus-agalactiae-antigen
#2
Honglin Luo, Huizan Yang, Yong Lin, Yongde Zhang, Chuanyan Pan, Pengfei Feng, Yanling Yu, Xiaohan Chen
Objectives: To investigate the lncRNA profiling during tilapia peritoneal macrophages (TPMs) activation and discuss the relationship between lncRNA and mRNA. Materials and Methods: RNA sequencing was used to investigate the lncRNA and mRNA profiles of TPMs activation following stimulation with Streptococcus agalactiae (Sa) antigen, heat shock protein 70 (HSP70) and HSP70+Sa. The expressions of lncRNA and mRNA were confirmed by qPCR. 356 lncRNA, 10173 mRNA and 1782 transcripts of uncertain coding potential (TUCP) were differentially expressed by pairwise comparison...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29227447/heat-shock-proteins-in-human-perilymph-implications-for-cochlear-implantation
#3
Heike Schmitt, Ariane Roemer, Carsten Zeilinger, Rolf Salcher, Martin Durisin, Hinrich Staecker, Thomas Lenarz, Athanasia Warnecke
OBJECTIVE: Biomarkers reflecting the etiology and pathophysiology of inner ear diseases are limited. Evaluation of proteins in the perilymph may improve our understanding of inner ear disease. Heat shock proteins (HSP) belong to a superfamily of stress proteins and promote refolding of denatured proteins. The aim of the study was to analyze HSP in human perilymph and to identify possible correlation with audiological and etiologic data. METHODS: Sampling of the perilymph was performed during cochlear implantation and vestibular schwannoma removal...
January 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29226586/protective-effect-of-gentiopicroside-from-gentiana-macrophylla-pall-in-ethanol-induced-gastric-mucosal-injury-in-mice
#4
Yang Yang, Ziye Wang, Li Zhang, Bing Yin, Le Lv, Jiao He, Ziyang Chen, Xin Wen, Boling Qiao, Wenji Sun, Minfeng Fang, Yongmin Zhang
Gentiopicroside isolated from gentiana macrophylla Pall. belongs to iridoid glycosides. This study aimed to evaluate the protective effect of gentiopicroside against ethanol-induced gastric mucosal injury in mice. Mice were proactively administrated with gentiopicroside by intragastric administration once a day for 3 consecutive days. On the 3rd day, gastric ulcer in mice was induced with 70% ethanol after the last intragastric administration. The stomach tissues were submitted for evaluation of the severity of gastric mucosal alterations...
December 11, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29216313/correction-elongation-factor-tu-and-heat-shock-protein-70-are-membrane-associated-proteins-from-mycoplasma-ovipneumoniae-capable-of-inducing-strong-immune-response-in-mice
#5
Fei Jiang, Jinyan He, Nalu Navarro-Alvarez, Jian Xu, Xia Li, Peng Li, Wenxue Wu
[This corrects the article DOI: 10.1371/journal.pone.0161170.].
2017: PloS One
https://www.readbyqxmd.com/read/29212841/hyperbaric-oxygen-pretreatment-benefits-on-decompression-sickness-in-bama-pigs
#6
Long Qing, Hong-Jie Yi, Ye-Wei Wang, Quan Zhou, Dinesh K Ariyadewa, Wei-Gang Xu
Decompression sickness (DCS) occurs when ambient pressure severely reduces during diving and aviation. Hyperbaric oxygen (HBO) pretreatment has been proven to exert beneficial effects on DCS in rats via heat-shock proteins (HSPs). We hypothesize that HBO pretreatment will also reduce DCS via HSPs in swine models. In part 1, six swine were subjected to a session of HBO treatment. HSP 32, 60, 70 and 90 were detected, before and at 6, 12, 18, 24 and 30 h following exposure in lymphocytes. In part 2, another ten swine were randomly assigned into 2 groups, 5 in each...
December 6, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29209126/intestinal-parameters-of-oxidative-imbalance-in-celiac-adults-with-extraintestinal-manifestations
#7
Agnieszka Piatek-Guziewicz, Agata Ptak-Belowska, Magdalena Przybylska-Felus, Pawel Pasko, Pawel Zagrodzki, Tomasz Brzozowski, Tomasz Mach, Malgorzata Zwolinska-Wcislo
AIM: To evaluate selected intestinal parameters of oxidative stress, and antioxidant capacity in adult celiac disease patients with extraintestinal manifestations. METHODS: The study involved 85 adult patients divided into the following subgroups: (1) patients with newly diagnosed celiac disease (CD) (n = 7); (2) celiac patients not adhering to a gluten-free diet (GFD) (n = 22); (3) patients with CD on the GFD (n = 31); and (4) patients with functional disorders of the gastrointestinal tract, serving as controls (n = 25)...
November 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29208684/central-npy-y5-sub-receptor-partially-functions-as-a-mediator-of-npy-induced-hypothermia-and-affords-thermotolerance-in-heat-exposed-fasted-chicks
#8
Hatem M Eltahan, Mohammad A Bahry, Hui Yang, Guofeng Han, Linh T N Nguyen, Hiromi Ikeda, Mohamed N Ali, Khairy A Amber, Mitsuhiro Furuse, Vishwajit S Chowdhury
Exposure of chicks to a high ambient temperature (HT) has previously been shown to increase neuropeptide Y (NPY) mRNA expression in the brain. Furthermore, it was found that NPY has anti-stress functions in heat-exposed fasted chicks. The aim of the study was to reveal the role of central administration of NPY on thermotolerance ability and the induction of heat-shock protein (HSP) and NPY sub-receptors (NPYSRs) in fasted chicks with the contribution of plasma metabolite changes. Six- or seven-day-old chicks were centrally injected with 0 or 375 pmol of NPY and exposed to either HT (35 ± 1°C) or control thermoneutral temperature (CT: 30 ± 1°C) for 60 min while fasted...
December 2017: Physiological Reports
https://www.readbyqxmd.com/read/29207042/anti-inflammatory-effect-of-lovastatin-is-mediated-via-the-modulation-of-nf-%C3%AE%C2%BAb-and-inhibition-of-hdac1-and-the-pi3k-akt-mtor-pathway-in-raw264-7-macrophages
#9
Hyung-Wook Choi, Pyung-Gyun Shin, Ji-Hyun Lee, Woo-Suk Choi, Min-Jae Kang, Won-Sik Kong, Min-Ji Oh, Yong-Bae Seo, Gun-Do Kim
Lovastatin is a 3-hydroxy-3-methylglutaryl-CoA reductase inhibitor that is clinically used for the prevention of cardiovascular diseases. Although it has been reported that lovastatin has anti-inflammatory properties in several studies, how lovastatin regulates the inflammation is still unclear. To evaluate the effect of lovastatin on nitric oxide production (NO) in RAW264.7 macrophages, NO production assay was performed. Also, cell viability was measured to confirm cytotoxicity. Level of tumor necrosis factor-α (TNF-α) transcription was measured by reverse transcription polymerase chain reaction (RT-PCR) from total RNA in RAW264...
December 5, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29203952/effect-of-intra-tumoral-magnetic-nanoparticle-hyperthermia-and-viral-nanoparticle-immunogenicity-on-primary-and-metastatic-cancer
#10
P Jack Hoopes, Courtney M Mazur, Bjorn Osterberg, Ailin Song, David J Gladstone, Nicole F Steinmetz, Frank A Veliz, Alicea A Bursey, Robert J Wagner, Steven N Fiering
Although there is long association of medical hyperthermia and immune stimulation, the relative lack of a quantifiable and reproducible effect has limited the utility and advancement of this relationship in preclinical/clinical cancer and non-cancer settings. Recent cancer-based immune findings (immune checkpoint modulators etc.) including improved mechanistic understanding and biological tools now make it possible to modify and exploit the immune system to benefit conventional cancer treatments such as radiation and hyperthermia...
January 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/29203951/hypo-fractionated-radiation-magnetic-nanoparticle-hyperthermia-and-a-viral-immunotherapy-treatment-of-spontaneous-canine-cancer
#11
P Jack Hoopes, Karen L Moodie, Alicia A Petryk, James D Petryk, Shawntel Sechrist, David J Gladstone, Nicole F Steinmetz, Frank A Veliz, Alicea A Bursey, Robert J Wagner, Ashish Rajan, Danielle Dugat, Margaret Crary-Burney, Steven N Fiering
It has recently been shown that cancer treatments such as radiation and hyperthermia, which have conventionally been viewed to have modest immune based anti-cancer effects, may, if used appropriately stimulate a significant and potentially effective local and systemic anti-cancer immune effect (abscopal effect) and improved prognosis. Using eight spontaneous canine cancers (2 oral melanoma, 3 oral amelioblastomas and 1 carcinomas), we have shown that hypofractionated radiation (6 x 6 Gy) and/or magnetic nanoparticle hyperthermia (2 X 43°C / 45 minutes) and/or an immunogenic virus-like nanoparticle (VLP, 2 x 200 μg) are capable of delivering a highly effective cancer treatment that includes an immunogenic component...
January 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/29203711/membrane-heat-shock-protein-70-a-theranostic-target-for-cancer-therapy
#12
REVIEW
Maxim Shevtsov, Gao Huile, Gabriele Multhoff
Members of the 70 kDa stress protein family are found in nearly all subcellular compartments of nucleated cells where they fulfil a number of chaperoning functions. Heat shock protein 70 (HSP70), also termed HSPA1A, the major stress-inducible member of this family is overexpressed in a large variety of different tumour types. Apart from its intracellular localization, a tumour-selective HSP70 membrane expression has been determined. A membrane HSP70-positive tumour phenotype is associated with aggressiveness and therapy resistance, but also serves as a recognition structure for targeted therapies...
January 19, 2018: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/29197511/partner-mediated-polymorphism-of-an-intrinsically-disordered-protein
#13
Christophe Bignon, Francesca Troilo, Stefano Gianni, Sonia Longhi
Intrinsically disordered proteins (IDPs) recognize their partners through molecular recognition elements (MoREs). The MoRE of the C-terminal intrinsically disordered domain of the measles virus nucleoprotein (NTAIL) is partly pre-configured as an α-helix in the free form and undergoes α-helical folding upon binding to the X domain (XD) of the viral phosphoprotein. Beyond XD, NTAIL also binds the major inducible heat shock protein 70 (hsp70). So far, no structural information is available for the NTAIL/hsp70 complex...
November 29, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/29197065/exosomes-from-heat-stressed-tumor-cells-inhibit-tumor-growth-by-converting-regulatory-t-cells-to-th17-cells-via-il-6
#14
Danfeng Guo, Yinghu Chen, Shoujie Wang, Lei Yu, Yingying Shen, Haijun Zhong, Yunshan Yang
Exosomes derived from heat-stressed tumor cells (HS-TEXs), which contain abundant heat shock protein (HSP) 70, strongly induce antitumor immune responses. HSP70-induced interleukin-6 (IL-6) promotes IL-17 expression and causes rejection of established prostate tumors. However, it remains unclear whether HS-TEXs exhibit antitumor effects by converting regulatory T cells (Tregs) into Th17 cells. In this study, we found that compared with TEXs, HS-TEXs were more potent in stimulating secretion of IL-6 from dendritic cells...
December 2, 2017: Immunology
https://www.readbyqxmd.com/read/29196880/role-of-intestinal-hsp70-in-barrier-maintenance-contribution-of-milk-to-the-induction-of-hsp70-2
#15
Rebecca M Rentea, Yuee Guo, Xiaorong Zhu, Mark W Musch, Eugene B Chang, David M Gourlay, Jennifer L Liedel
BACKGROUND: Necrotizing enterocolitis (NEC) is a gastrointestinal disease of complex etiology resulting in devastating systemic inflammation and often death in premature newborns. We previously demonstrated that formula feeding inhibits ileal expression of heat shock protein-70 (Hsp70), a critical stress protein within the intestine. Barrier function for the premature intestine is critical. We sought to determine whether reduced Hsp70 protein expression increases neonatal intestinal permeability...
December 1, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/29194761/development-and-use-of-a-piggybac-based-jumpstarter-system-in-drosophila-suzukii
#16
Fu-Chyun Chu, William Klobasa, Nathaniel Grubbs, Marcé D Lorenzen
Spotted wing drosophila, Drosophila suzukii, is an invasive pest that primarily attacks fresh, soft-skinned fruit. Although others have reported successful integration of marked piggyBac elements into the D. suzukii genome, with a very respectable transgenesis rate of ∼16%, here we take this work a step further by creating D. suzukii jumpstarter strains. These were generated through integration of a fluorescent-marked Minos element carrying a heat shock protein 70-driven piggyBac transposase gene. We demonstrate that there is a dramatic increase in transformation rates when germline transformation is performed in a transposase-expressing background...
December 1, 2017: Archives of Insect Biochemistry and Physiology
https://www.readbyqxmd.com/read/29192359/a-field-and-laboratory-study-of-the-responses-of-cytoprotection-and-osmoregulation-to-salinity-stress-in-mosquitofish-gambusia-affinis
#17
Jeng-Wei Tsai, Hon-Jung Liew, Jyun-Jiang Jhang, Shiou-Han Hung, Pei-Jie Meng, Ming-Yih Leu, Christopher Lim, Cheng-Hao Tang
The mosquitofish (Gambusia affinis) naturally inhabits freshwater (FW; 1-3‰) and seawater (SW; 28-33‰) ponds in constructed wetland. To explore the physiological status and molecular mechanisms for salinity adaptation of the mosquitofish, cytoprotective responses and osmoregulation were examined. In the field study, activation of protein quality control (PQC) mechanism through upregulation of the abundance of heat shock protein (HSP) 90 and 70 and ubiquitin-conjugated proteins was found in the mosquitofish gills from SW pond compared to the individuals of FW pond...
December 1, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/29191962/nontypeable-haemophilus-influenzae-lysates-increase-heterogeneous-nuclear-ribonucleoprotein-secretion-and-exosome-release-in-human-middle-ear-epithelial-cells
#18
Stéphanie Val, Anna Krueger, Marian Poley, Ariella Cohen, Kristy Brown, Aswini Panigrahi, Diego Preciado
Nontypeable Haemophilus influenzae (NTHi), one of the most common acute otitis media (OM) pathogens, is postulated to promote middle-ear epithelial remodeling in the progression of OM from acute to chronic. The goal of this study was to examine early quantitative proteomic secretome effects of NTHi lysate exposure in a human middle-ear epithelial cell (HMEEC) line. NTHi lysates were used to stimulate HMEEC, and conditional quantitative stable isotope labeling with amino acids in cell culture of cell secretions was performed...
November 30, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29186870/dietary-supplementation-with-lactobacillus-casei-alleviates-lipopolysaccharide-induced-liver-injury-in-a-porcine-model
#19
Di Zhao, Tao Wu, Dan Yi, Lei Wang, Peng Li, Junmei Zhang, Yongqing Hou, Guoyao Wu
This study aims to determine whether Lactobacillus casei (L. casei) could relieve liver injury in piglets challenged with lipopolysaccharide (LPS). Piglets were randomly allocated into one of the three groups: control, LPS, and L. casei. The control and LPS groups were fed a corn- and soybean meal-based diet, whereas the L. casei group was fed the basal diet supplemented with 6 × 10⁶ cfu/g L. casei. On Day 31 of the trial, piglets in the LPS and L. casei groups received intraperitoneal administration of LPS (100 µg/kg body weight), while the control group received the same volume of saline...
November 26, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29183796/heat-shock-protein-70-suppresses-neuroinflammation-induced-by-%C3%AE-synuclein-in-astrocytes
#20
Wen-Wen Yu, Sheng-Nan Cao, Cai-Xia Zang, Lu Wang, Han-Yu Yang, Xiu-Qi Bao, Dan Zhang
Neuroinflammation triggered by activation of glial cells plays an important role in the pathophysiology of several neurodegenerative diseases including Parkinson's disease (PD). Besides microglia, astrocytes are also critical in initiating and perpetuating inflammatory process associated with PD. Heat shock protein 70 (Hsp70) is originally described as intracellular chaperone, however, recent study revealed that it had anti-inflammatory effects as well. The present study is designed to investigate whether Hsp70 mediates neuroinflammation in astrocytes...
November 25, 2017: Molecular and Cellular Neurosciences
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