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caveolin-1

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https://www.readbyqxmd.com/read/28710901/baseline-and-longitudinal-plasma-caveolin-1-level-as-a-biomarker-in-active-surveillance-for-early-stage-prostate-cancer
#1
Spyridon P Basourakos, John W Davis, Brian F Chapin, John F Ward, Curtis A Pettaway, Louis L Pisters, Neema Navai, Mary F Achim, Xuemei Wang, Hsiang-Chun Chen, Seungtaek Choi, Deborah Kuban, Patricia Troncoso, Sam Hanash, Timothy C Thompson, Jeri Kim
OBJECTIVES: To evaluate the role of caveolin-1 as a predictor of disease reclassification in men with early prostate cancer undergoing active surveillance. PATIENTS AND METHODS: We analyzed archived plasma samples prospectively collected from men with early prostate cancer in a single-institution active surveillance study. Of 825 patients enrolled, 542 had 1 or more years of follow-up. Baseline and longitudinal plasma caveolin-1 levels were measured using an enzyme-linked immunosorbent assay...
July 15, 2017: BJU International
https://www.readbyqxmd.com/read/28699528/targeting-cd147-is-a-novel-strategy-for-antitumor-therapy
#2
ChengXiang Lian, Yeye Guo, Jianglin Zhang, Xiang Chen, Cong Peng
CD147 is a membrane protein belonging to immunoglobulin superfamily and expressed in the cell membrane, which is also named with an extracellular matrix metalloproteinase inducer (EMMPRIN) because this molecule induces adjacent fibroblasts or tumor cells to produce MMPs, facilitating tumor cells migration and invasion. Accumulating evidences have shown that CD147 is over-expressed in various tumors, including melanoma, liver cancer, and lung cancer, and orchestrates tumor cell proliferation, apoptosis, invasion and metastasis, multidrug resistance and glycolysis through critical molecules such as MMPs, MCTs, Caveolin-1, and VEGF...
July 10, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28697756/proteomic-characterization-of-paired-non-malignant-and-malignant-african-american-prostate-epithelial-cell-lines-distinguishes-them-by-structural-proteins
#3
Jennifer S Myers, Karin A Vallega, Jason White, Kaixian Yu, Clayton C Yates, Qing-Xiang Amy Sang
BACKGROUND: While many factors may contribute to the higher prostate cancer incidence and mortality experienced by African-American men compared to their counterparts, the contribution of tumor biology is underexplored due to inadequate availability of African-American patient-derived cell lines and specimens. Here, we characterize the proteomes of non-malignant RC-77 N/E and malignant RC-77 T/E prostate epithelial cell lines previously established from prostate specimens from the same African-American patient with early stage primary prostate cancer...
July 11, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28687352/gemcitabine-enhances-the-transport-of-nanovector-albumin-bound-paclitaxel-in-gemcitabine-resistant-pancreatic-ductal-adenocarcinoma
#4
Carlotta Borsoi, Fransisca Leonard, Yeonju Lee, Mohamed Zaid, Dalia Elganainy, Jenolyn Francisca Alexander, Megumi Kai, Yan Ting Liu, Yaan Kang, Xuewu Liu, Eugene J Koay, Mauro Ferrari, Biana Godin, Kenji Yokoi
The mechanism for improved therapeutic efficacy of the combination therapy with nanoparticle albumin-bound paclitaxel (nAb-PTX) and gemcitabine (gem) for pancreatic ductal adenocarcinoma (PDAC) has been ascribed to enhanced gem transport by nAb-PTX. Here, we used an orthotopic mouse model of gem-resistant human PDAC in which increasing gem transport would not improve the efficacy, thus revealing the importance of nAb-PTX transport. We aimed to evaluate therapeutic outcomes and transport of nAb-PTX to PDAC as a result of (1) encapsulating nAb-PTX in multistage nanovectors (MSV); (2) effect of gem on caveolin-1 expression...
July 4, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28686680/resveratrol-ameliorates-diet-induced-dysregulation-of-lipid-metabolism-in-zebrafish-danio-rerio
#5
Gai Ran, Li Ying, Lin Li, Qiaoqiao Yan, Weijie Yi, Chenjiang Ying, Hongmei Wu, Xiaolei Ye
Defective lipid metabolism is associated with increased risk of various chronic diseases, such as obesity, cardiovascular diseases, and diabetes. Resveratrol (RSV), a natural polyphenol, has been shown the potential of ameliorating disregulations of lipid metabolism. The objective of this study was to investigate the effects of feed intake and RSV on lipid metabolism in zebrafish (Danio rerio). The adult males were randomly allocated to 6 groups: control (Con, 8 mg cysts/fish/day), control with 20 μmol/L RSV (Con+RSV), calorie restriction (CR, 5 mg cysts/fish/day), calorie restriction with RSV (CR+RSV), overfeed (OF, 60 mg cysts/fish/day), and overfeed with RSV (OF+RSV) groups...
2017: PloS One
https://www.readbyqxmd.com/read/28684115/enhanced-expression-of-caveolin-1-possesses-diagnostic-and-prognostic-value-and-promotes-cell-migration-invasion-and-sunitinib-resistance-in-the-clear-cell-renal-cell-carcinoma
#6
HaiLong Ruan, Xiang Li, HongMei Yang, ZhengShuai Song, JunWei Tong, Qi Cao, KeShan Wang, Wen Xiao, HaiBin Xiao, XuanYu Chen, GuangHua Xu, Lin Bao, ZhiYong Xiong, ChangFei Yuan, Lei Liu, Yan Qu, WenJun Hu, YaoYing Gao, ZeYuan Ru, Ke Chen, XiaoPing Zhang
Caveolin-1 (CAV1) has been identified to be up-regulated in many cancers, including clear cell renal cell carcinoma (ccRCC). However, its potential function is still unclear in ccRCC. In this study, we demonstrated that CAV1 was frequently overexpressed in renal cell carcinoma tissues and cells, and was significantly associated with various clinicopathological parameters. In addition, high CAV1 expression was associated with poor disease-free survival (DFS) rate and could serve as a useful diagnostic indicator in ccRCC patients with different clinicopathological stages...
July 3, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28661905/genetics-of-pulmonary-hypertension-in-the-clinic
#7
Barbara Girerd, Edmund Lau, David Montani, Marc Humbert
PURPOSE OF REVIEW: Heritable pulmonary arterial hypertension (PAH) is an autosomal dominant disease with incomplete penetrance because of mutations in bone morphogenetic protein receptor-II (BMPR2), activin A receptor type II-like kinase 1, endoglin, caveolin-1, potassium channel subfamily K, member 3, and T-box gene 4 genes. Heritable pulmonary veno-occlusive disease and/or pulmonary capillary hemangiomatosis (PVOD/PCH) is an autosomal recessive disease because of biallelic mutations in the eukaryotic translation initiation factor 2 alpha kinase 4 gene...
June 28, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/28655698/traumatic-brain-injury-research-and-expression-of-caveolin-1-and-its-relationship-with-disease-prognosis
#8
Xiangdong Wang, Xinliang Ren, Yanhong Wang, Jianhong Li, Tiezhu Guo, Fan Li, Zhiqiang Zhao
The objective of this paper is to study the expression of caveolin-1 in the traumatic brain injury patients and its relationship with disease prognosis. Caveolin-1 was measured in 52 patients with ventricular hemorrhage within 8h, 24h, 48h, 72h and 1 week after onset by enzyme-linked immunosorbent assay (ELISA), to observe the changes of cerebrospinal fluid caveolin-1. The level of caveolin-1 in the brain of all patients was higher than that of the control group at 8 h, 24h, 48 h, 72h and 1 weeks after the onset (P<0...
May 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28648824/sheath-cell-invasion-and-trans-differentiation-repair-mechanical-damage-caused-by-loss-of-caveolae-in-the-zebrafish-notochord
#9
Jamie Garcia, Jennifer Bagwell, Brian Njaine, James Norman, Daniel S Levic, Susan Wopat, Sara E Miller, Xiaojing Liu, Jason W Locasale, Didier Y R Stainier, Michel Bagnat
The notochord, a conserved axial structure required for embryonic axis elongation and spine development, consists of giant vacuolated cells surrounded by an epithelial sheath [1-3]. During morphogenesis, vacuolated cells maintain their structural integrity despite being under constant mechanical stress [4]. We hypothesized that the high density of caveolae present in vacuolated cells [5, 6] could buffer mechanical tension. Caveolae are 50- to 80-nm membrane invaginations lined by cage-like polygonal structures [7, 8] formed by caveolin 1 (Cav1) or Cav3 and one of the cavin proteins [6, 9-11]...
July 10, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28642789/androgen-receptor-localizes-to-plasma-membrane-by-binding-to-caveolin-1-in-mouse-sertoli-cells
#10
Qiong Deng, Yong Wu, Zeng Zhang, Yue Wang, Minghua Li, Hui Liang, Yaoting Gui
The nonclassical androgen signaling pathway translates signals into alterations in cellular function within minutes, and this action is proposed to be mediated by an androgen receptor (AR) localized to the plasma membrane. This study was designed to determine the mechanism underlying the membrane association of androgen receptor in TM4 cells, a mouse Sertoli cell line. Western blot analysis indicated testosterone-induced AR translocation to the cell membrane. Data from coimmunoprecipitation indicated that AR is associated with caveolin-1, and testosterone enhanced this association...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28638916/-different-subtypes-of-estrogen-receptor-%C3%AE-and-related-signal-molecules-in-the-hippocampus-are-associated-with-spatial-cognitive-impairment-of-diabetic-mice
#11
Ming-Rui Zhang, Chao Qu, Jia Sun, Cui Wang, Hong-Yan Li, Ye-Jun Zhang, Bing-Qiang Zhang, Wei Zou
To study the correlation between the spatial cognitive impairment and different subtypes of estrogen receptor α (ERα) of hippocampus in diabetic mice, we used alloxan (intraperitoneal injection) to induce type 1 diabetes in male Kunming mice and compared the spatial cognitive ability of the model mice with that of control mice through Morris water maze test. Meanwhile, using Western blot, we detected the protein expressions of ER-α36, ER-α66, caveolin-1, PKCα, cAMP-response element binding protein 2 (CREB2), and synaptophysin (Syn) in the hippocampus of the mice...
June 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28637901/caveolin-1-influences-lfa-1-redistribution-upon-tcr-stimulation-in-cd8-t-cells
#12
Jessica G Borger, Vicky L Morrison, Andrew Filby, Celine Garcia, Liisa M Uotila, Fabio Simbari, Susanna C Fagerholm, Rose Zamoyska
TCR stimulation by peptide-MHC complexes on APCs requires precise reorganization of molecules into the area of cellular contact to form an immunological synapse from where T cell signaling is initiated. Caveolin (Cav)1, a widely expressed transmembrane protein, is involved in the regulation of membrane composition, cellular polarity and trafficking, and the organization of signal transduction pathways. The presence of Cav1 protein in T cells was identified only recently, and its function in this context is not well understood...
June 21, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28635361/role-of-licochalcone-a-in-vegf-induced-proliferation-of-human-airway-smooth-muscle-cells-implications-for-asthma
#13
Sung-Ho Kim, Qing-Mei Pei, Ping Jiang, Min Yang, Xue-Jiao Qian, Jiang-Bo Liu
Asthma is a chronic respiratory disease characterized by reversible airway obstruction with persistent airway inflammation and airway remodeling, which is associated with increased airway smooth muscle (ASM) mass. Licochalcone A is the predominant characteristic chalcone in licorice root. We found that licochalcone A inhibited vascular endothelial growth factor (VEGF)-induced ASM cell proliferation and induced cell cycle arrest. Additionally, VEGF-induced ASM cell proliferation was suppressed via inhibition of extracellular signal-regulated kinase 1/2 (ERK1/2) activity, but not that of Akt...
February 2017: Growth Factors
https://www.readbyqxmd.com/read/28614767/changes-in-caveolin-1-caveolin-3-and-vascular-endothelial-growth-factor-expression-and-protein-content-after-botulinum-toxin-a-injection-in-the-right-masseter-muscle-of-dystrophin-deficient-mdx-mice
#14
U U Botzenhart, V Vaal, I Rentzsch, T Gredes, T Gedrange, C Kunert-Keil
Progressive muscle wasting, frequently associated with inflammation, muscle fibre degeneration and fibrosis, is a characteristic of DMD (Duchenne muscular dystrophy). Its most common used animal model, the mdx mouse, however can overcome muscle degeneration by regeneration processes and is for this reason not suitable to answer all scientific questions. The aim of this study was to evaluate the ability of botulinum toxin A (BTX-A) in breaking down muscle regeneration in mdx mice. For this purpose, the right masseter muscle of 100 days old mdx and healthy mice was paralyzed by a single specific intramuscular injection of BTX-A...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28611342/is-plasma-caveolin-1-level-a-prognostic-biomarker-in-metastatic-pancreatic-cancer
#15
Nebi S Demirci, Mutlu Dogan, Gokmen U Erdem, Sabite Kacar, Turan Turhan, Saadettin Kilickap, Lutfi C Cigirgan, Ertugrul Kayacetin, Yakup Bozkaya, Nurullah Zengin
BACKGROUND/AIMS: To evaluate the prognostic significance of plasma caveolin (CAV)-1 and its association with survival and treatment response rates in metastatic pancreatic cancer (MPC). PATIENTS AND METHODS: Plasma samples were prospectively collected from 41 patients with newly diagnosed MPC. Moreover, plasma samples were collected from 48 patients with chronic pancreatitis and 41 healthy individuals (control groups) for assessing Cav-1 levels. Plasma Cav-1 levels were evaluated at baseline and after three cycles of chemotherapy in the patients with MPC...
May 2017: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/28593998/the-ubiquitin-ligase-znrf1-promotes-caveolin-1-ubiquitination-and-degradation-to-modulate-inflammation
#16
Chih-Yuan Lee, Ting-Yu Lai, Meng-Kun Tsai, Yung-Chi Chang, Yu-Hsin Ho, I-Shing Yu, Tzu-Wen Yeh, Chih-Chang Chou, You-Sheng Lin, Toby Lawrence, Li-Chung Hsu
Caveolin-1 (CAV1), the major constituent of caveolae, plays a pivotal role in various cellular biological functions, including cancer and inflammation. The ubiquitin/proteasomal pathway is known to contribute to the regulation of CAV1 expression, but the ubiquitin ligase responsible for CAV1 protein stability remains unidentified. Here we reveal that E3 ubiquitin ligase ZNRF1 modulates CAV1 protein stability to regulate Toll-like receptor (TLR) 4-triggered immune responses. We demonstrate that ZNRF1 physically interacts with CAV1 in response to lipopolysaccharide and mediates ubiquitination and degradation of CAV1...
June 8, 2017: Nature Communications
https://www.readbyqxmd.com/read/28592633/the-phospho-caveolin-1-scaffolding-domain-dampens-force-fluctuations-in-focal-adhesions-and-promotes-cancer-cell-migration
#17
Fanrui Meng, Sandeep Saxena, Youtao Liu, Bharat Joshi, Timothy H Wong, Jay Shankar, Leonard J Foster, Pascal Bernatchez, Ivan R Nabi
Caveolin-1 (Cav1), a major Src kinase substrate phosphorylated on tyrosine-14 (Y14), contains the highly-conserved membrane-proximal caveolin scaffolding domain (CSD; amino acids 82-101). Here we show, using CSD mutants (F92A/V94A) and membrane-permeable CSD competing peptides, that Src kinase-dependent pY14Cav1 regulation of focal adhesion protein stabilization, focal adhesion tension and cancer cell migration is CSD-dependent. Quantitative proteomic analysis of Cav1-GST (1-101 amino acids) pulldowns showed 6-fold increased binding of vinculin and, to a lesser extent, α-actinin, talin and filamin, to phosphomimetic Cav1Y14D relative to non-phosphorylatable Cav1Y14F...
June 7, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28591365/expression-dynamics-of-caveolin-1-in-fibroblasts-of-newborn-rats-with-chronic-lung-disease-and-its-impact-on-lung-fibroblast-proliferation
#18
Xin Wang, Jian-Hua Fu, Xin-Dong Xue
Purpose: To evaluate the changes of caveolin-1 in lung fibroblasts in newborn Wistar rats when exposed to hyperoxic conditions, as well as lung fibroblasts cell cycle. Methods: One hundred newborn Wistar rats were randomly divided (50 rats/group) into experimental and control groups, exposed to hyperoxic conditions or normal air, respectively. The fraction of inspired oxygen (FiO2) in the experimental group was 90%, whereas this value was 21% in the control group...
May 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28587148/the-role-of-caveolin-1-in-hiv-infection-and-pathogenesis
#19
REVIEW
Ayalew Mergia
Caveolin 1 (Cav-1) is a major component of the caveolae structure and is expressed in a variety of cell types including macrophages, which are susceptible to human immunodeficiency virus (HIV) infection. Caveolae structures are present in abundance in mechanically stressed cells such as endothelial cells and adipocytes. HIV infection induces dysfunction of these cells and promotes pathogenesis. Cav-1 and the caveolae structure are believed to be involved in multiple cellular processes that include signal transduction, lipid regulation, endocytosis, transcytosis, and mechanoprotection...
May 26, 2017: Viruses
https://www.readbyqxmd.com/read/28586379/lamp-2-absence-interferes-with-plasma-membrane-repair-and-decreases-t-cruzi-host-cell-invasion
#20
Natália Fernanda Couto, Dina Pedersane, Luisa Rezende, Patrícia P Dias, Tayanne L Corbani, Lívia C Bentini, Anny C S Oliveira, Ludmila F Kelles, Thiago Castro-Gomes, Luciana O Andrade
Trypanosoma cruzi enters host cells by subverting the mechanism of cell membrane repair. In this process, the parasite induces small injuries in the host cell membrane leading to calcium entry and lysosomal exocytosis, which are followed by compensatory endocytosis events that drive parasites into host cells. We have previously shown that absence of both LAMP-1 and 2, major components of lysosomal membranes, decreases invasion of T. cruzi into host cells, but the mechanism by which they interfere with parasite invasion has not been described...
June 2017: PLoS Neglected Tropical Diseases
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