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Hsp70 protein expression

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https://www.readbyqxmd.com/read/29792338/molecular-mechanism-for-the-influence-of-gender-dimorphism-on-alcoholic-liver-injury-in-mice
#1
S-Q Li, P Wang, D-M Wang, H-J Lu, R-F Li, L-X Duan, S Zhu, S-L Wang, Y-Y Zhang, Y-L Wang
It is known that women develop alcoholic liver injury more rapidly and have a lower alcohol toxic threshold than men. However, the detailed molecular mechanisms remain unclear. The precise mechanism responsible for the sex difference needs to be determined. Female and male mice were given ethanol by intragastric infusion every day for 4 weeks. The pathological changes were detected by hematoxylin-eosin, Sirius red, oil red O, periodic acid-Schiff, and Hochest33258 staining in the liver of female and male mice...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29789443/low-intensity-pulsed-ultrasound-stimulation-facilitates-in-vitro-osteogenic-differentiation-of-human-adipose-derived-stem-cells-via-up-regulation-of-heat-shock-protein-hsp-70-hsp90-and-bone-morphogenetic-protein-bmp-signaling-pathway
#2
Zhonglei Zhang, Yalin Ma, Shaowen Guo, Yi He, Gang Bai, Wenjun Zhang
Low-intensity pulsed ultrasound (LIPUS) has positive effects on osteogenic differentiation. However, the effect of LIPUS on osteogenic differentiation of human adipose-derived stem cells (hASCs) is unclear. In the present study, we investigated whether LIPUS could promote the proliferation and osteogenic differentiation of hASCs. hASCs were isolated and osteogenically induced with LIPUS stimulation at 20 and 30 mW cm-2 for 30 min day-1 Cell proliferation and osteogenic differentiation potential of hASCs were respectively analyzed by cell counting kit-8 assay, Alizarin Red S staining, real-time polymerase chain reaction, and Western blotting...
May 29, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29779101/the-role-of-epibionts-of-bacteria-of-the-genus-pseudoalteromonas-and-cellular-proteasomes-in-the-adaptive-plasticity-of-marine-cold-water-sponges
#3
O I Kravchuk, A I Lavrov, A D Finoshin, N G Gornostaev, A A Georgiev, S B Abaturova, V S Mikhailov, Yu V Lyupina
It was found that cells of different color morphs of the cold-water marine sponges Halichondria panicea (Pallas, 1766) of the class Demospongiae differ in the content of epibionts of bacteria of the genus Pseudoalteromonas. The sponge cells with elevated levels of epibionts of bacteria of the genus Pseudoalteromonas showed an increased expression of Hsp70 proteins but had a reduced level of the proteasomal catalytic beta 5 subunit, which was accompanied by a change in their activity. Probably, epibionts of bacteria of the genus Pseudoalteromonas may affect the ubiquitin-proteasome system in the cells of cold-water marine sponges and, thereby, ensure their adaptive plasticity...
March 2018: Doklady. Biochemistry and Biophysics
https://www.readbyqxmd.com/read/29777767/biglycan-is-a-new-high-affinity-ligand-for-cd14-in-macrophages
#4
Heiko Roedig, Madalina V Nastase, Helena Frey, Kristin Moreth, Jinyang Zeng-Brouwers, Chiara Poluzzi, Louise Tzung-Harn Hsieh, Christian Brandts, Simone Fulda, Malgorzata Wygrecka, Liliana Schaefer
Sterile inflammation is a therapeutic target in many diseases where it represents an important initiator of disease progression. However, the detailed mechanisms underlying its evolution and biological relevance are not yet completely elucidated. Biglycan, a prototype extracellular matrix-derived damage-associated molecular pattern, mediates sterile inflammation in macrophages through Toll-like receptor (TLR) 2 and/or TLR4-dependent signaling pathways. Here we discovered that soluble biglycan is a novel high-affinity ligand for CD14, a well-known GPI-anchored co-receptor for TLRs...
May 16, 2018: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29775453/ts-hsp70-induces-protective-immunity-against-trichinella-spiralis-infection-in-mouse-by-activating-dendritic-cells-through-tlr2-and-tlr4
#5
Rui Zhang, Qing Sun, Yi Chen, Ximeng Sun, Yuan Gu, Zhang Zhao, Yuli Cheng, Limei Zhao, Jingjing Huang, Bin Zhan, Xinping Zhu
BACKGROUND: Trichinellosis is a serious food-borne parasitic zoonosis worldwide. In the effort to develop vaccine against Trichinella infection, we have identified Trichinella spiralis Heat shock protein 70 (Ts-Hsp70) elicits partial protective immunity against T. spiralis infection via activating dendritic cells (DCs) in our previous study. This study aims to investigate whether DCs were activated by Ts-Hsp70 through TLR2 and/or TLR4 pathways. METHODS AND FINDINGS: After blocking with anti-TLR2 and TLR4 antibodies, the binding of Ts-Hsp70 to DCs was significantly reduced...
May 18, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29770483/melatonin-modulates-dysregulated-circadian-clocks-in-mice-with-diethylnitrosamine-induced-hepatocellular-carcinoma
#6
Diana I Sánchez, Bárbara González-Fernández, Irene Crespo, Beatriz San-Miguel, Marcelino Álvarez, Javier González-Gallego, María Jesús Tuñón
Disruption of circadian rhythms, which are regulated by the circadian clock machinery, plays an important role in different long-term diseases including hepatocellular carcinoma (HCC). Melatonin has been reported to alleviate promotion and progression of HCC, but the potential contribution of circadian clock modulation is unknown. We investigated the effects of melatonin in mice which received diethylnitrosamine (DEN) (35 mg/kg body weight i.p.) once a week for 8 weeks. Melatonin was given at 5 or 10 mg/kg/day i...
May 16, 2018: Journal of Pineal Research
https://www.readbyqxmd.com/read/29766433/the-role-of-heat-shock-protein-70-in-oxidant-stress-and-inflammatory-injury-in-quail-spleen-induced-by-cold-stress
#7
Jiayi Ren, Chunpeng Liu, Dan Zhao, Jing Fu
The aim of this study was to investigate the role of heat shock protein 70 (Hsp70) in oxidative stress and inflammatory damage in the spleen of quails which were induced by cold stress. One hundred ninety-two 15-day-old male quails were randomly divided into 12 groups and kept at 12 ± 1 °C to examine acute and chronic cold stress. We first detected the changes in activities of antioxidant enzymes in the spleen tissue under acute and chronic cold stress. The activities of glutathione peroxidase (GSH-Px) fluctuated in acute cold stress groups, while they were significantly decreased (p < 0...
May 15, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29765493/long-term-exercise-protects-against-cellular-stresses-in-aged-mice
#8
Irina Belaya, Masataka Suwa, Tao Chen, Rashid Giniatullin, Katja M Kanninen, Mustafa Atalay, Shuzo Kumagai
The current study examined the effect of aging and long-term wheel-running on the expression of heat shock protein (HSP), redox regulation, and endoplasmic reticulum (ER) stress markers in tibialis anterior (T.A.) and soleus muscle of mice. Male mice were divided into young (Y, 3-month-old), old-sedentary (OS, 24-month-old), and old-exercise (OE, 24-month-old) groups. The OE group started voluntary wheel-running at 3 months and continued until 24 months of age. Aging was associated with a higher thioredoxin-interacting protein (TxNiP) level, lower thioredoxin-1 (TRX-1) to TxNiP ratio-a determinant of redox regulation and increased CHOP, an indicator of ER stress-related apoptosis signaling in both muscles...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29765202/inhibition-of-human-prostate-cancer-pc-3-cells-and-targeting-of-pc-3-derived-prostate-cancer-stem-cells-with-koenimbin-a-natural-dietary-compound-from-murraya-koenigii-l-spreng
#9
Behnam Kamalidehghan, Soudeh Ghafouri-Fard, Elahe Motevaseli, Fatemeh Ahmadipour
Background: Inhibition of prostate cancer stem cells (PCSCs) is an efficient curative maintenance protocol for the prevention of prostate cancer. The objectives of this study were to assess the efficiency of koenimbin, a major biologically active component of Murraya koenigii (L) Spreng, in the suppression of PC-3 cells and to target PC-3-derived cancer stem cells (CSCs) through apoptotic and CSC signaling pathways in vitro. Materials and methods: The antiproliferative activity of koenimbin was examined using MTT, and the apoptotic detection was carried out by acridine orange/propidium iodide (AO/PI) double-staining and multiparametric high-content screening (HCS) assays...
2018: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29764864/targeting-the-hsp40-hsp70-chaperone-axis-as-a-novel-strategy-to-treat-castration-resistant-prostate-cancer
#10
Michael A Moses, Yeong Sang Kim, Genesis M Rivera-Marquez, Nobu Oshima, Matthew J Watson, Kristin Beebe, Catherine Wells, Sunmin Lee, Abbey D Zuehlke, Hao Shao, William E Bingman, Vineet Kumar, Sanjay Malhotra, Nancy L Weigel, Jason E Gestwicki, Jane Trepel, Leonard M Neckers
Castration-resistant prostate cancer (CRPC) is characterized by reactivation of androgen receptor (AR) signaling in part by elevated expression of AR splice variants (ARv) including ARv7, a constitutively active, ligand binding domain (LBD)-deficient variant whose expression has been correlated with therapeutic resistance and poor prognosis. In a screen to identify small molecule dual inhibitors of both androgen-dependent and androgen-independent AR gene signatures, we identified the chalcone C86. Binding studies using purified proteins and CRPC cell lysates revealed C86 to interact with heat shock protein 40 (Hsp40)...
May 15, 2018: Cancer Research
https://www.readbyqxmd.com/read/29763367/hsp70-protects-rats-and-hippocampal-neurons-from-central-nervous-system-oxygen-toxicity-by-suppression-of-no-production-and-nf-%C3%AE%C2%BAb-activation
#11
Hongjie Yi, Guoyang Huang, Kun Zhang, Shulin Liu, Weigang Xu
During diving, central nervous system oxygen toxicity may cause drowning or barotrauma, which has dramatically limited the working benefits of hyperbaric oxygen in underwater operations and clinical applications. The aim of this study is to understand the effects and the underlying mechanism of heat shock protein 70 on central nervous system oxygen toxicity and its mechanisms in vivo and in vitro. Rats were given geranylgeranylacetone (800 mg/kg) orally to induce hippocampal expression of heat shock protein 70 and then treated with hyperbaric oxygen...
May 2018: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29760078/chaperone-ampylation-modulates-aggregation-and-toxicity-of-neurodegenerative-disease-associated-polypeptides
#12
Matthias C Truttmann, David Pincus, Hidde L Ploegh
Proteostasis is critical to maintain organismal viability, a process counteracted by aging-dependent protein aggregation. Chaperones of the heat shock protein (HSP) family help control proteostasis by reducing the burden of unfolded proteins. They also oversee the formation of protein aggregates. Here, we explore how AMPylation, a posttranslational protein modification that has emerged as a powerful modulator of HSP70 activity, influences the dynamics of protein aggregation. We find that adjustments of cellular AMPylation levels in Caenorhabditis elegans directly affect aggregation properties and associated toxicity of amyloid-β (Aβ), of a polyglutamine (polyQ)-extended polypeptide, and of α-synuclein (α-syn)...
May 14, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29758298/transcriptome-sequencing-for-identification-of-diapause-associated-genes-in-fall-webworm-hyphantria-cunea-drury
#13
Yu Deng, Fei Li, Lynne K Rieske, Li-Li Sun, Shou-Hui Sun
Fall webworm, Hyphantria cunea Drury (Lepidoptera: Arctiidae) is extremely adaptable and highly invasive in China as a defoliator of ornamental and forest trees. Both voltinism and diapause strategies of fall webworm in China are variable, and this variability contributes to it invasiveness. Little is known about molecular regulation of diapause in fall webworm. To gain insight into possible mechanisms of diapause induction, high-throughput RNA-seq data were generated from non-diapause pupae (NDP) and diapause pupae (DP)...
May 11, 2018: Gene
https://www.readbyqxmd.com/read/29753822/the-protective-role-of-selenium-against-cadmium-induced-hepatotoxicity-in-laying-hens-expression-of-hsps-and-inflammation-related-genes-and-modulation-of-elements-homeostasis
#14
Runxiang Zhang, Yanhong Liu, Lu Xing, Ning Zhao, Qimin Zheng, Jianhong Li, Jun Bao
The purpose of this study was to examine the potential role of high selenium (Se) diets in alleviating chronic cadmium (Cd) hepatic toxicity in laying hens. In the present study, 128 healthy 31-week-old laying hens were fed a diet supplemented with Se (Na2 SeO3 , 2 mg/kg), Cd (CdCl2 , 150 mg/kg), or both Se and Cd (150 mg/kg of CdCl2 and 2 mg/kg of Na2 SeO3 ) for 90 days. The expression levels of heat shock proteins (Hsps, including Hsp60, Hsp70 and Hsp90) and inflammation-related factors, including nuclear factor-kappa B p50 (NF-κB), cyclooxygenase-2 (COX-2), prostaglandin E synthases (PTGES), interleukin 1-beta (IL-1β), and tumor necrosis factor-α (TNF-α) were investigated...
May 10, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29752628/correlation-between-heat-shock-proteins-adiponectin-and-t-lymphocyte-cytokine-expression-in-type-2-diabetics
#15
Fadia F Mahmoud, David Haines, Ali A Dashti, Sherief El-Shazly, Fawzia Al-Najjar
Type 2 diabetes mellitus (T2DM) features insulin resistance, hyperglycemia, dyslipidemia, overproduction of inflammatory cytokines, and systemic oxidative stress. Here, heat shock proteins Hsp70 and Hsp 90, adiponectin, and heme oxygenase-1 (HO-1, Hsp32) are profiled in peripheral blood mononuclear cells (PBMC) and serum from 25 T2DM patients and 25 healthy control subjects. Cells cultured with phorbol 12-myristate 13-acetate/ionomycin were evaluated by three-color flow cytometry for immunophenotypic biomarkers...
May 11, 2018: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/29750253/transport-stress-induces-heart-damage-in-newly-hatched-chicks-via-blocking-the-cytoprotective-heat-shock-response-and-augmenting-nitric-oxide-production
#16
F Sun, Y-Z Zuo, J Ge, J Xia, X-N Li, J Lin, C Zhang, H-L Xu, J-L Li
Transport stress affects the animal's metabolism and psychological state. As a pro-survival pathway, the heat shock response (HSR) protects healthy cells from stressors. However, it is unclear whether the HSR plays a role in transport stress-induced heart damage. To evaluate the effects of transport stress on heart damage and HSR protection, newly hatched chicks were treated with transport stress for 2 h, 4 h and 8 h. Transport stress caused decreases in body weight and increases in serum creatine kinase (CK) activity, nitric oxide (NO) content in heart tissue, cardiac nitric oxide syntheses (NOS) activity and NOS isoforms transcription...
April 20, 2018: Poultry Science
https://www.readbyqxmd.com/read/29749547/salidroside-inhibits-the-proliferation-and-migration-of-gastric-cancer-cells-via-suppression-of-src%C3%A2-associated-signaling-pathway-activation-and-heat-shock-protein-70-expression
#17
Zhilin Qi, Tuo Tang, Lili Sheng, Yunfei Ma, Yinhua Liu, Liang Yan, Shimei Qi, Liefeng Ling, Yao Zhang
Salidroside, an active ingredient extracted from the Rhodiola rosea plant, has potential anti‑tumor effects. However, the effects of salidroside on gastric cancer cell proliferation and migration remain unclear. In the present study, the inhibitory effects of salidroside on gastric cancer cell proliferation, migration and invasion and the molecular mechanisms underlying these effects were investigated. The human gastric cancer cell line, BGC‑823, was treated with different concentrations of salidroside (200, 400 and 600 µg/ml)...
May 3, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29749485/gas%C3%A2-filled-ultrasound-microbubbles-enhance-the-immunoactivity-of-the-hsp70%C3%A2-magea1-fusion-protein-against-magea1%C3%A2-expressing-tumours
#18
Xing Gao, Yang Nan, Yuan Yuan, Xue Gong, Yuanyuan Sun, Huihui Zhou, Yujin Zong, Lijun Zhang, Ming Yu
Advanced malignant melanoma is characterized by rapid development, poor prognosis and insensitivity to chemoradiotherapy. Immunotherapy has become one of the primary clinical treatments for malignant melanomas. In recent decades, identifying specific tumour antigens and the enhanced immunoactivity of tumour vaccines has become critical for engineering successful tumour vaccines. As a widely used vaccine carrier, heat shock protein 70 (HSP70) clearly increases the immunogenicity of tumour antigens, such as melanoma‑associated antigen A1 (MAGEA1)...
May 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29749430/ectromelia-virus-upregulates-the-expression-of-heat-shock-protein-70-to-promote-viral-replication
#19
Wenyu Cheng, Huaijie Jia, Xiaoxia Wang, Xiaobing He, Qiwang Jin, Jingxin Cao, Zhizhong Jing
The ectromelia virus (ECTV) is a mouse specific Orthopoxvirus that causes lethal infection in some mouse strains. ECTV infection of these mouse strains has been used as a valuable model for understanding the interplay between Orthopoxvirus species and their hosts, including variola virus in humans. Although poxviruses encode numerous proteins required for DNA and RNA synthesis, and are less dependent on host functions than other DNA viruses, a detailed understanding of the host factors required for the replication of poxviruses is lacking...
May 4, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29748799/metal-contamination-in-quail-meat-residues-sources-molecular-biomarkers-and-human-health-risk-assessment
#20
Wageh Sobhy Darwish, Amira Samir Atia, Mariam H E Khedr, Walaa Fathy Saad Eldin
Quail meat is an emerging source of high-quality animal protein. Quails are exposed to a wide range of xenobiotics such as heavy metals. In this study, residual concentrations of four toxic metals, of significant public health importance, including cadmium (Cd), lead (Pb), arsenic (As), and nickel (Ni), were determined in edible tissues of quails. In addition, metal loads were measured in water, feed, and litter samples collected from same quail farms as possible sources for quail exposure to heavy metals. The possible use of metallothionein (MT) and heat shock protein 70 (Hsp70) as molecular biomarkers of exposure to heavy metals was further investigated...
May 10, 2018: Environmental Science and Pollution Research International
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