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https://www.readbyqxmd.com/read/28646740/epigallocatechin-3-gallate-promotes-apoptosis-in-human-breast-cancer-t47d-cells-through-down-regulation-of-pi3k-akt-and-telomerase
#1
Maliheh Moradzadeh, Azar Hosseini, Saiedeh Erfanian, Hadi Rezaei
BACKGROUND: Green tea has antioxidant, anti-tumor and anti-bacterial properties. Epigallocatechin-3-gallate (EGCG) in green tea is highly active as a cancer chemopreventive agent. In this study, we designed a series of experiments to examine the effects of EGCG on proliferation and apoptosis of estrogen receptor α-positive breast cancer (T47D) cells. METHODS: Cells were treated with EGCG (0-80μM) and tamoxifen (0-20μM), as the positive control, up to 72h. Cell viability was determined by MTT assay...
April 13, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28646601/autophagy-activation-is-required-for-myofibroblasts-differentiation-during-healing-of-oral-mucosa
#2
Enrica Vescarelli, Andrea Pilloni, Francesco Dominici, Paola Pontecorvi, Antonio Angeloni, Antonella Polimeni, Simona Ceccarelli, Cinzia Marchese
AIM: It is known that periodontal tissues heal faster that skin, and gingiva in particular heal without scar formation. The mechanisms regulating this behavior are still unclear. The aim of our work is to compare wound healing in oral mucosa and gingiva, investigating the role of αSMA-expressing myofibroblasts and autophagy. MATERIALS AND METHODS: Biopsies were obtained from 7 patients immediately before and 24h after vertical releasing incision in oral mucosa and attached gingiva...
June 24, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28646583/sebum-lipids-influence-macrophage-polarization-and-activation
#3
M Lovászi, M Mattii, K Eyerich, Attila Gácsi, Erzsébet Csányi, D Kovács, R Rühl, A Szegedi, L Kemény, M Ståhle, C C Zouboulis, S Eyerich, D Törőcsik
BACKGROUND: As lipids are known to regulate macrophage functions it is reasonable to suppose that a sebocyte - macrophage axis mediated by sebum lipids may exist. OBJECTIVE: To investigate if sebocytes could contribute to the differentiation, polarization and function of macrophages with their secreted lipids. METHODS: Oil-red-O lipid staining and Raman spectroscopy were used to assess the dermal lipid content and penetration. Immunohistochemistry was used to analyse the macrophage subsets...
June 24, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28646531/morin-a-novel-lxr%C3%AE-%C3%AE-dual-antagonist-has-potent-therapeutic-efficacy-for-nonalcoholic-fatty-liver-diseases
#4
Ming Gu, Yu Zhang, Chuhe Liu, Dongshan Wang, Li Feng, Shengjie Fan, Baican Yang, Qingchun Tong, Guang Ji, Cheng Huang
BACKGROUND AND PURPOSE: Morin is a natural occurring flavonoid in many dietary plants and has a wide range of beneficial effects on metabolism; however, the mechanism underlying its action remains elusive. EXPERIMENTAL APPROACH: Reporter assay and the Time-Resolved Fluorescence Resonance Energy Transfer assay were used to identify morin as a dual antagonist of LXRα and LXRβ. High fat-diet mixed with morin (100 mg/100 g diet) was administrated to high-fat diet-induced obese or LXRβ(-/-) mice combining with Western blot and RT-PCR analysis to evaluate the pharmacological effect and mechanism of morin treatment...
June 23, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28646455/human-nucleus-pulposus-intervertebral-disc-cells-becoming-senescent-using-different-treatments-exhibit-a-similar-transcriptional-profile-of-catabolic-and-inflammatory-genes
#5
Sotiris-Spyros Vamvakas, Eleni Mavrogonatou, Dimitris Kletsas
PURPOSE: Chronic low back pain has been associated with intervertebral disc (IVD) degeneration, which is characterized by the accumulation of extracellular matrix (ECM)-degrading proteases and inflammatory molecules in the degenerate tissue. IVD degeneration could be the outcome of natural organismal ageing and/or of the exposure of the disc to cumulative stressful environmental stimuli and is accompanied by an increased population of senescent cells in the tissue. On the other hand, senescent cells are known to secrete proteolytic enzymes and inflammatory molecules, which can contribute to ECM catabolism...
June 23, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28646324/expression-purification-and-characterization-of-gmz2-10c-a-complex-disulphide-bonded-fusion-protein-vaccine-candidate-against-the-asexual-and-sexual-life-stages-of-the-malaria-causing-plasmodium-falciparum-parasite
#6
Ulrik H Mistarz, Susheel K Singh, Tam T T N Nguyen, Will Roeffen, Fen Yang, Casper Lissau, Søren M Madsen, Astrid Vrang, Régis W Tiendrebeogo, Ikhlaq H Kana, Robert W Sauerwein, Michael Theisen, Kasper D Rand
PURPOSE: Production and characterization of a chimeric fusion protein (GMZ2'.10C) which combines epitopes of key malaria parasite antigens: glutamate-rich protein (GLURP), merozoite surface protein 3 (MSP3), and the highly disulphide bonded Pfs48/45 (10C). GMZ2'.10C is a potential candidate for a multi-stage malaria vaccine that targets both transmission and asexual life-cycle stages of the parasite. METHODS: GMZ2'.10C was produced in Lactococcus lactis and purified using either an immunoaffinity purification (IP) or a conventional purification (CP) method...
June 23, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28646165/selective-inhibition-of-sterolo-acyltransferase-1-isozyme-by-beauveriolide-iii-in-intact-cells
#7
Taichi Ohshiro, Keisuke Kobayashi, Mio Ohba, Daisuke Matsuda, Lawrence L Rudel, Takashi Takahashi, Takayuki Doi, Hiroshi Tomoda
Beauveriolide III (BeauIII) inhibited sterol O-acyltransferases 1 and 2 (SOAT1 and SOAT2), which are endoplasmic reticulum (ER) membrane proteins, in an enzyme-based assay, and selectively inhibited SOAT1 in a cell-based assay using SOAT1-/SOAT2-CHO cells. This discrepancy in SOAT inhibition by BeauIII was investigated. In the enzyme-based assay, BeauIII inhibited SOAT1 and SOAT2 to a similar extent using microsomes prepared from cells disrupted under the strongest sonication condition. In semi-intact SOAT1-/SOAT2-CHO cells prepared by a treatment with digitonin (plasma membrane permeabilized), BeauIII selectively inhibited SOAT1 (IC50; 5...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28645873/generation-of-nitric-oxide-by-olive-olea-europaea-l-pollen-during-in-vitro-germination-and-assessment-of-the-s-nitroso-and-nitro-pollen-proteomes-by-computational-predictive-methods
#8
María José Jimenez-Quesada, Rosario Carmona, Elena Lima-Cabello, José Ángel Traverso, Antonio Jesús Castro, M Gonzalo Claros, Juan de Dios Alché
Nitric oxide is recognized as a signaling molecule involved in a broad range of physiological processes in plants including sexual reproduction. NO has been detected in the pollen grain at high levels and regulates pollen tube growth. Previous studies demonstrated that NO as well as ROS are produced in the olive reproductive tissues in a stage- and tissue-specific manner. The aim of this study was to assess the production of NO throughout the germination of olive (Olea europaea L.) pollen in vitro. The NO fluorescent probe DAF-2DA was used to image NO production in situ, which was correlated to pollen viability...
June 20, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28645823/recombinant-human-soluble-thrombomodulin-prevents-acute-lung-injury-in-a-rat-cardiopulmonary-bypass-model
#9
Shingo Hirao, Kenji Minakata, Hidetoshi Masumoto, Kazuhiro Yamazaki, Tadashi Ikeda, Kenji Minatoya, Ryuzo Sakata
BACKGROUND: Cardiopulmonary bypass (CPB) may induce systemic inflammatory responses causing acute lung injury. Recombinant human soluble thrombomodulin (rTM) is reported to attenuate the secretion of inflammatory cytokines and the high-mobility group box 1 (HMGB1) protein, which is critical in controlling systemic inflammation and apoptosis. We investigated the protective effects of rTM on CPB-induced lung injury in a rat model. METHODS: Eighteen male Sprague-Dawley rats were divided into 3 groups: sham, control (CPB alone), and rTM (CPB + rTM)...
May 30, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28645780/salvia-miltiorrhiza-bunge-danshen-extract-attenuates-permanent-cerebral-ischemia-through-inhibiting-platelet-activation-in-rats
#10
Yu-Xiang Fei, Si-Qi Wang, Li-Jian Yang, Yan-Ying Qiu, Yi-Ze Li, Wen-Yuan Liu, Tao Xi, Wei-Rong Fang, Yun-Man Li
ETHNOPHARMACOLOGICAL RELEVANCE: Danshen is a crude herbal drug isolated from dried roots of Salvia miltiorrhiza Bunge. This plant is widely used in oriental medicine for the treatment of cardiovascular and cerebrovascular diseases. The supercritical CO2 extract from Danshen (SCED) (57.85%, 5.67% and 4.55% for tanshinone IIA, tanshinone I and cryptotanshinone respectively) was studied in this article, whose potential molecular mechanism remains unclear, especially in anti-thrombosis. AIM OF THE STUDY: The present study was designed to observe the protective effect of SCED on ischemic stroke in rats and to explore the underlying anti-thrombosis mechanism...
June 20, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28645746/cortical-aquaporin-4-in-relation-to-brain-oedema-and-neurological-function-of-cortical-cryo-injured-mice
#11
Edmond Jonathan Gandham, Prabhakaran Vasudevan, Ranjith K Moorthy, Kesavan Narasimhan, Muthukumar Murthy, Grace Rebekah, Vedantam Rajshekhar
To estimate the spatial and temporal expression of Aquaporin-4 (AQP-4) in a murine model of automated cerebral cryoinjury and correlate AQP-4 expression with development of brain oedema and neurological function. AQP-4 levels were determined quantitatively by Western blots at site of injury and at sites adjacent to and distant from injury in brains of cryoinjured (experimental) (n=18), sham injured (n=18) & normal mice at 24, 48, 72h post injury. AQP-4 expression was correlated with percentage water content of brain, Neurological Severity Score (NSS) and rotarod scores...
June 20, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28645527/inhibition-of-17beta-hydroxysteroid-dehydrogenase-type-7-modulates-breast-cancer-protein-profile-and-enhances-apoptosis-by-down-regulating-grp78
#12
Xiao-Qiang Wang, Juliette A Aka, Tang Li, Dan Xu, Charles J Doillon, Sheng-Xiang Lin
17beta-hydroxysteroid dehydrogenase type 7 (17β-HSD7) promotes breast cancer cell growth via dual-catalytic activity by modulating estradiol and DHT. Here, we clarified the expression pattern of 17β-HSD7 in postmenopausal luminal A type breast cancer with The Cancer Genome Atlas (TCGA) cohort. The impact of 17β-HSD7 inhibition on the proteome of MCF-7 cells was investigated and on cell apoptosis was revealed. MCF-7 cells were treated with an efficient inhibitor of 17β-HSD7 or with vehicle, and a differential proteomics study was performed using two-dimensional (2D) gel electrophoresis followed by mass spectrometry and ingenuity pathway analysis (IPA)...
June 20, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28645524/orientin-attenuates-cerebral-ischemia-reperfusion-injury-in-rat-model-through-the-aqp-4-and-tlr4-nf-%C3%AE%C2%BAb-tnf-%C3%AE-signaling-pathway
#13
Xiaoru Wang, Fang An, Shulin Wang, Zexin An, Shuhua Wang
BACKGROUND: Orientin has been reported to have extensive pharmaceutical effects of antioxidant, anti-inflammatory, antithrombosis, antiapoptosis, and so on. In the present study, we tried to investigate the protective effects of orientin on cerebral ischemia-reperfusion (I/R) injury and explored the possible mechanisms. METHODS: Middle cerebral artery occlusion rat model was established and then treated with low, middle, and high concentrations of orientin, respectively, with edaravone as a positive control...
June 20, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28645315/role-of-inhibitors-of-serine-peptidases-in-protecting-leishmania-donovani-against-the-hydrolytic-peptidases-of-sand-fly-midgut
#14
Sudha Verma, Sushmita Das, Abhishek Mandal, Md Yousuf Ansari, Sujata Kumari, Rani Mansuri, Ajay Kumar, Ruby Singh, Savita Saini, Kumar Abhishek, Vijay Kumar, Ganesh Chandra Sahoo, Pradeep Das
BACKGROUND: In vector-borne diseases such as leishmaniasis, the sand fly midgut is considered to be an important site for vector-parasite interaction. Digestive enzymes including serine peptidases such as trypsin and chymotrypsin, which are secreted in the midgut are one of the obstacles for Leishmania in establishing a successful infection. The presence of some natural inhibitors of serine peptidases (ISPs) has recently been reported in Leishmania. In the present study, we deciphered the role of these ISPs in the survival of Leishmania donovani in the hostile sand fly midgut environment...
June 23, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28645312/phf21b-overexpression-promotes-cancer-stem-cell-like-traits-in-prostate-cancer-cells-by-activating-the-wnt-%C3%AE-catenin-signaling-pathway
#15
Qiji Li, Liping Ye, Wei Guo, Min Wang, Shuai Huang, Xinsheng Peng
BACKGROUND: PHF21B is newly identified to be involved in the tumor progression; however, its biological role and molecular mechanism in prostate cancer have not been defined. This study is aimed to study the role of PHF21B in the progression of prostate cancer. METHODS: Real-time PCR, immunohistochemistry and western blotting analysis were used to determine PHF21B expression in prostate cancer cell lines and clinical specimens. The role of PHF21B in maintaining prostate cancer stem cell-like phenotype was examined by tumor-sphere formation assay and expression levels of stem cell markers...
June 23, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28645297/interleukin-1-receptor-type-1-is-overexpressed-in-neurons-but-not-in-glial-cells-within-the-rat-superficial-spinal-dorsal-horn-in-complete-freund-adjuvant-induced-inflammatory-pain
#16
Krisztina Holló, László Ducza, Zoltán Hegyi, Klaudia Dócs, Krisztina Hegedűs, Erzsébet Bakk, Ildikó Papp, Gréta Kis, Zoltán Mészár, Zsuzsanna Bardóczi, Miklós Antal
BACKGROUND: All known biological functions of the pro-inflammatory cytokine interleukin-1β (IL-1β) are mediated by type 1 interleukin receptor (IL-1R1). IL-1β-IL-1R1 signaling modulates various neuronal functions including spinal pain processing. Although the role of IL-1β in pain processing is generally accepted, there is a discussion in the literature whether IL-1β exerts its effect on spinal pain processing by activating neuronal or glial IL-1R1. To contribute to this debate, here we investigated the expression and cellular distribution of IL-1R1 in the superficial spinal dorsal horn in control animals and also in inflammatory pain...
June 23, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28645275/rapid-monocyte-infiltration-following-retinal-detachment-is-dependent-on-non-canonical-il6-signaling-through-gp130
#17
Xinlei Wang, Eric B Miller, Mayank Goswami, Pengfei Zhang, Kaitryn E Ronning, Sarah J Karlen, Robert J Zawadzki, Edward N Pugh, Marie E Burns
BACKGROUND: Retinal detachment (RD) can lead to proliferative vitreoretinopathy (PVR), a leading cause of intractable vision loss. PVR is associated with a cytokine storm involving common proinflammatory molecules like IL6, but little is known about the source and downstream signaling of IL6 and the consequences for the retina. Here, we investigated the early immune response and resultant cytokine signaling following RD in mice. METHODS: RD was induced in C57BL/6 J and IL6 knockout mice, and the resulting inflammatory response was examined using immunohistochemistry and flow cytometry...
June 23, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28645161/lncrna-tug1-influences-papillary-thyroid-cancer-cell-proliferation-migration-and-emt-formation-through-targeting-mir-145
#18
Hongwei Lei, Yan Gao, Xiaoying Xu
LncRNA TUG1, a tumor oncogene associated with various human cancers, has been reported to be involved in regulating various cellular processes, such as proliferation, apoptosis and invasion through targeting multiple genes. However, its biological function in thyroid cancer cells has not been elucidated. The aim of this study is to measure TUG1 expression level and evaluate its function in thyroid cancer cells. LncRNA TUG1 expression levels in thyroid cancer tissues and three thyroid cancer cell lines (the ATC cell lines SW1736 and KAT18 and the FTC cell line FTC133) were assessed by qRT-PCR and compared with that of the human normal breast epithelial cell HGC-27...
June 22, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28645116/the-additive-effects-of-the-tm6sf2-e167k-and-pnpla3-i148m-polymorphisms-on-lipid-metabolism
#19
Lizhen Chen, Shuixian Du, Linlin Lu, Zhonghua Lin, Wenwen Jin, Doudou Hu, Xiangjun Jiang, Yongning Xin, Shiying Xuan
There is a genetic susceptibility for nonalcoholic fatty liver disease (NAFLD). To examine the role of genetic factors in the disease, a Bayesian analysis was performed to model gene relationships in NAFLD pathogenesis. The Bayesian analysis indicated a potential gene interaction between the TM6SF2 and PNPLA3 genes. Next, to explore the underlying mechanism at the cellular level, we evaluated the additive effects between the TM6SF2 E167K and PNPLA3 I148M polymorphisms on lipid metabolism. Hepa 1-6 cells were transfected with a control vector or with overexpression vectors for TM6SF2/PNPLA3-wild type, TM6SF2-mutant type, PNPLA3-mutant type, or TM6SF2/PNPLA3-mutant type...
June 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28645073/analysis-of-ldlr-variants-from-homozygous-fh-patients-carrying-multiple-mutations-in-the-ldlr-gene
#20
Long Jiang, Asier Benito-Vicente, Ling Tang, Aitor Etxebarria, Wei Cui, Kepa B Uribe, Xiao-Dong Pan, Helena Ostolaza, Shi-Wei Yang, Yu-Jie Zhou, Cesar Martin, Lu-Ya Wang
BACKGROUND AND AIMS: Familial hypercholesterolemia (FH) is an autosomal dominant disease with widespread global prevalence that partially accounts for the high prevalence of premature coronary heart disease. Although the majority of research on FH has focused on single heterozygous LDLR mutations, there have been limited reports of double LDLR mutations on the same chromosome. The aim of this study was to gain insight into the clinical consequences of the presence of multiple mutations in the LDLR gene...
June 8, 2017: Atherosclerosis
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