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WT-1 vascular

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https://www.readbyqxmd.com/read/30111572/sirtuin-2-isoform-1-enhances-hepatitis-b-virus-rna-transcription-and-dna-synthesis-via-the-akt-gsk-3%C3%AE-%C3%AE-catenin-signaling-pathway
#1
Zahra Zahid Piracha, Hyeon Joong Kwon, Umar Saeed, Jumi Kim, Jaesung Jung, Yong-Joon Chwae, Sun Park, Ho-Joon Shin, Kyongmin Kim
Sirtuin 2 (Sirt2), a NAD+ -dependent protein deacetylase, is overexpressed in many hepatocellular carcinomas (HCCs) and can deacetylate many proteins, including tubulins and AKT prior to AKT activation. Here, we found that endogenous Sirt2 was upregulated in hepatitis B virus (HBV) WT-replicating cells, leading to tubulin deacetylation; however, this was not the case in HBV replication-deficient mutant-transfected cells and 1.3mer HBV WT-transfected plus reverse transcriptase inhibitor (entecavir or lamivudine) treated cells but all HBV proteins are expressed...
August 15, 2018: Journal of Virology
https://www.readbyqxmd.com/read/30105819/dietary-fats-modify-vascular-fat-composition-enos-localization-within-lipid-rafts-and-vascular-function-in-obesity
#2
Daniel W Nuno, Lawrence J Coppey, Mark A Yorek, Kathryn G Lamping
We tested whether dietary fatty acids alter membrane composition shifting localization of signaling pathways within caveolae to determine their role in vascular function. Wild type (WT) and caveolin-1-deficient mice (cav-1 KO), required for vascular caveolae formation, were fed low fat (LF), high saturated fat (HF, 60% kcal from lard), or high-fat diet with 50:50 lard and n-3 polyunsaturated fatty acid-enriched menhaden oil (MO). HF and MO increased body weight and fat in WT but had less effect in cav-1 KO...
August 2018: Physiological Reports
https://www.readbyqxmd.com/read/30085331/exendin%C3%A2-4-reverses-endothelial-dysfunction-in-mice-fed-a-high%C3%A2-cholesterol-diet-by-a-gtp-cyclohydrolase%C3%A2-1-tetrahydrobiopterin-pathway
#3
Zhiqi Tang, Lijuan Liu, Yujie Guo, Guoxiong Deng, Meixiang Chen, Jinru Wei
The present study examined whether exendin‑4 (Ex4) can improve the endothelial dysfunction of apolipoprotein E knockout (APOE‑KO) mice fed a high‑cholesterol diet and the potential mechanism by which it acts. Genetically wild‑type (WT) C57BL/6 mice and APOE‑KO mice of C57BL/6 background, were each randomly assigned to receive either Ex4 treatment (Ex4‑treated, for 8 weeks) or not (control). The 4 groups were fed the same high‑cholesterol diet for 8 weeks. The following were measured at the end of the eighth week: Endothelium‑dependent vasodilation of the arteries; plasma nitric oxide (NO) and metabolic index; levels of endothelial NO synthase (eNOS); phosphorylated eNOS (p‑eNOS; Ser‑1,177); guanosine triphosphate cyclohydrolase‑1 (GCH1); and tetrahydrobiopterin (THB)...
August 1, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/30082820/deletion-of-interferon-regulatory-factor-1-results-in-cognitive-impairment
#4
Masaki Mogi, Jun Iwanami, Xiao-Li Wang, Kana Tsukuda, Harumi Kan-No, Hui-Yu Bai, Bao-Shuai Shan, Akinori Higaki, Li-Juan Min, Masatsugu Horiuchi
Interferon-regulatory factor (IRF)-1-dependent genes in neurons play a role in ischemic neuronal death; however, the roles of IRF-1 in dementia are not well investigated. Therefore, we assessed the effect of IRF-1 on cognitive function using a vascular cognitive impairment mouse model created by chronic cerebral hypoperfusion. Male 10-week-old C57BL/6 (wild-type; WT) and IRF-1-knockout (IRF-1KO) mice were used in this study. A chronic cerebral hypoperfusion mouse model was generated by bilateral common carotid artery stenosis (BCAS) treatment...
August 6, 2018: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/30082733/ectopic-overexpression-of-kir6-1-in-the-mouse-heart-impacts-on-the-life-expectancy
#5
Yasuhiro Watanabe, Takashi Kishimoto, Takashi Miki, Susumu Seino, Haruaki Nakaya, Akio Matsumoto
We recently reported the reduced ATP-sensitive potassium (KATP ) channel activities in the transgenic mouse heart overexpressing the vascular type KATP channel pore-forming subunit (Kir6.1). Although dysfunction of cardiac KATP channel has been nominated as a cause of cardiomyopathy in human, these transgenic mice looked normal as wild-type (WT) during the experiment period (~20 weeks). Extended observation period revealed unexpected deaths beginning from 30 weeks and about 50% of the transgenic mice died by 55 weeks...
August 6, 2018: Scientific Reports
https://www.readbyqxmd.com/read/30071881/batf-regulates-collagen-induced-arthritis-by-regulating-t-helper-cell-differentiation
#6
Sang-Heon Park, Jinseol Rhee, Seul-Ki Kim, Jung-Ah Kang, Ji-Sun Kwak, Young-Ok Son, Wan-Su Choi, Sung-Gyoo Park, Jang-Soo Chun
BACKGROUND: We recently demonstrated that BATF, a member of the activator protein-1 (AP-1) family, regulates osteoarthritic cartilage destruction. Here, we explored the roles and regulatory mechanisms of BATF in collagen-induced arthritis (CIA) in mice. METHODS: CIA and K/BxN serum transfer were used to generate inflammatory arthritis models in wild-type (WT) and Batf-/- mice. RA manifestations were determined by examining CIA incidence, clinical score, synovitis, synovial hyperplasia, angiogenesis in inflamed synovium, pannus formation, bone erosion, and cartilage destruction...
August 2, 2018: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/30065303/galectin-1-restricts-vascular-smooth-muscle-cell-motility-via-modulating-adhesion-force-and-focal-adhesion-dynamics
#7
Min-Shao Tsai, Ming-Tsai Chiang, Dong-Lin Tsai, Chih-Wen Yang, Hsien-San Hou, Yi-Ru Li, Po-Chiao Chang, Heng-Huei Lin, Huan-Yuan Chen, Ing-Shouh Hwang, Pei-Kuen Wei, Chiao-Po Hsu, Kuo-I Lin, Fu-Tong Liu, Lee-Young Chau
Vascular smooth muscle cell (VSMC) migration play a key role in the development of intimal hyperplasia and atherosclerosis. Galectin-1 (Gal-1) is a redox-sensitive β-galactoside-binding lectin expressed in VSMCs with intracellular and extracellular localizations. Here we show that VSMCs deficient in Gal-1 (Gal-1-KO) exhibited greater motility than wild type (WT) cells. Likewise, Gal-1-KO-VSMC migration was inhibited by a redox-insensitive but activity-preserved Gal-1 (CSGal-1) in a glycan-dependent manner...
July 31, 2018: Scientific Reports
https://www.readbyqxmd.com/read/30049484/laparoscopic-total-nephrectomy-for-wilms-tumor-towards-new-standards-of-care
#8
REVIEW
Paula Flores, Martín Cadario, Yvonne Lenz, Walter Cacciavillano, Laura Galluzzo, Enrique Guillermo Nestor Paz, Juan Pablo Corbetta, Pedro Zubizarreta
INTRODUCTION: Laparoscopic total nephrectomy (LN) in malignant pediatric tumors remains controversial. For selected patients undergoing pre-operative chemotherapy in referral centers, LN has so far shown comparable results to the standard open technique. PURPOSE: To describe the inclusion criteria and preliminary results of laparoscopic nephrectomies (LN) for the treatment of unilateral Wilms tumors (WT). MATERIAL AND METHODS: Between November 2010 and January 2016, a retrospective study of patients with WT and undergoing pre-operative chemotherapy was performed...
July 23, 2018: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/30030370/cerebral-cavernous-malformation-1-2-complex-controls-rock1-and-rock2-complementary-functions-for-endothelial-integrity
#9
Justyna Lisowska, Claudia Jasmin Rödel, Sandra Manet, Yekaterina A Miroshnikova, Cyril Boyault, Emmanuelle Planus, Richard De Mets, Hsiao-Hui Lee, Olivier Destaing, Hichem Mertani, Gwénola Boulday, Elisabeth Tournier-Lasserve, Martial Balland, Salim Abdelilah-Seyfried, Corinne Albiges-Rizo, Eva Faurobert
Endothelial integrity relies on a mechanical crosstalk between intercellular and cell-matrix interactions. This cross-talk is compromised in hemorrhagic vascular lesions of patients carrying loss-of-function mutations in CCM genes. RhoA/ROCK-dependent cytoskeletal remodeling is central to the disease as it causes unbalanced cell adhesion towards increased cell-extracellular matrix adhesions and destabilized cell-cell junctions. Our study reveals that CCM proteins directly orchestrate ROCK1 and ROCK2 complementary roles on the mechanics of the endothelium...
July 20, 2018: Journal of Cell Science
https://www.readbyqxmd.com/read/29980883/anti-inflammatory-and-anticancer-effects-of-p-methoxycinnamic-acid-an-active-phenylpropanoid-against-1-2-dimethylhydrazine-induced-rat-colon-carcinogenesis
#10
Sivagami Gunasekaran, Karthikkumar Venkatachalam, Nalini Namasivayam
p-methoxycinnamic acid (p-MCA) is an active phenolic acid found in rice bran, turmeric, brown rice, Kaempferia galanga, buckwheat inflorescence, etc. Earlier, we have reported that p-methoxycinnamic acid possesses antioxidant and antilipidperoxidative effects on 1,2-dimethylhyrdrazine (DMH)-induced colon carcinogenesis. The purpose of this study is to unravel the anti-inflammatory and anticancer properties of p-MCA against DMH-induced colon carcinogenesis. Male albino Wistar rats were randomly divided into six groups...
July 6, 2018: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29924731/il-37-affects-the-occurrence-and-development-of-endometriosis-by-regulating-the-biological-behavior-of-endometrial-stromal-cells-through-multiple-signaling-pathways
#11
Jianfa Jiang, Kenan Yu, Zhaoying Jiang, Min Xue
Endometriosis (EMs) is a chronic inflammatory condition. Interleukin (IL)-37 is a member of the IL-1 family and an anti-inflammatory cytokine. This study aimed to evaluate the possible role of IL-37 in the EMs pathogenesis. We investigated the in vivo effect of IL-37 on EMs by injection with recombinant human IL-37 (rhIL-37) into EMs mice. Furthermore, we evaluated the in-vitro effects of IL-37 on proliferation, adhesion, migration, and invasiveness of endometrial stromal cells (ESCs), and explored whether Wnt/β-catenin and mitogen-activated protein kinase (MAPK) pathways were involved in this process...
June 1, 2018: Biological Chemistry
https://www.readbyqxmd.com/read/29921553/il-33-initiates-vascular-remodelling-in-hypoxic-pulmonary-hypertension-by-up-regulating-hif-1%C3%AE-and-vegf-expression-in-vascular-endothelial-cells
#12
Jie Liu, Wang Wang, Lei Wang, Shihao Chen, Bo Tian, Kewu Huang, Chris J Corrigan, Sun Ying, Wei Wang, Chen Wang
IL-33 may play a role in the vascular remodelling of hypoxic pulmonary hypertension (PH) but the precise mechanisms are still unclear. We hypothesized that hypoxia promotes expression of IL-33 and its receptor ST2 on vascular endothelial cells, which in turn leads to dysfunction of vascular endothelial cells and smooth muscle cells contributing to PH. Immunohistochemistry showed that immunoreactivity for IL-33 and ST2 was significantly increased in lung tissue of murine model of hypoxia-induced PH (HPH) and of subjects with bronchiectasis-PH...
July 2018: EBioMedicine
https://www.readbyqxmd.com/read/29900561/rage-dependent-vcam-1-expression-in-the-lung-endothelium-mediates-il-33-induced-allergic-airway-inflammation
#13
Timothy N Perkins, Elizabeth A Oczypok, Pavle S Milutinovic, Regina E Dutz, Tim D Oury
BACKGROUND: The receptor for advanced glycation endproducts (RAGE) has been implicated as a critical molecule in the pathogenesis of experimental asthma/allergic airway inflammation (AAI). It has been previously shown that RAGE acts both upstream of interleukin-33 (IL-33) release and downstream of IL-33 release via RAGE-dependent IL-33 induced accumulation of type 2 innate lymphoid cells (ILC2s) in the lungs, which perpetuate type 2 inflammation and mucus metaplasia. However, the mechanism by which RAGE mediates downstream IL-33 induced type 2 inflammatory responses is unknown...
June 14, 2018: Allergy
https://www.readbyqxmd.com/read/29894667/elevating-atp-binding-cassette-transporter-g1-improves-re-endothelialization-function-of-endothelial-progenitor-cells-via-lyn-akt-enos-in-diabetic-mice
#14
Ying Shi, Xue Lv, Yanan Liu, Bochuan Li, Mingming Liu, Meng Yan, Yajin Liu, Qi Li, Xuejiao Zhang, Shuang He, Mason Zhu, Jinlong He, Yan Zhu, Yi Zhu, Ding Ai
Endothelial progenitor cell (EPC) dysfunction contributes to diabetes-induced delay in endothelium repair after vessel injury, prominently associated with diabetic cardiovascular complications such as neointima formation. ATP-binding cassette transporter G1 (ABCG1) promotes cholesterol efflux to HDL, which may favorably affect EPC function. However, whether ABCG1 improves EPC function, especially in diabetes, remains unknown. Here we investigated the role of ABCG1 in EPCs by using Tie2-mediated ABCG1 transgenic (Tie2- ABCG1Tg ) mice...
June 12, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29891592/the-endothelial-tumor-suppressor-p53-is-essential-for-venous-thrombus-formation-in-aged-mice
#15
Magdalena L Bochenek, Tobias Bauer, Rajinikanth Gogiraju, Yona Nadir, Amrit Mann, Tanja Schönfelder, Leonie Hünig, Benjamin Brenner, Thomas Münzel, Philip Wenzel, Stavros Konstantinides, Katrin Schäfer
Venous thromboembolism (VTE) is a leading cause of morbidity and mortality in elderly people. Increased expression of tumor suppressor protein 53 (p53) has been implicated in vascular senescence. Here, we examined the importance of endothelial p53 for venous thrombosis and whether endothelial senescence and p53 overexpression are involved in the exponential increase of VTE with age. Mice with conditional, endothelial-specific deletion of p53 (End.p53-KO) and their wild-type littermates (End.p53-WT) underwent subtotal inferior vena cava (IVC) ligation to induce venous thrombosis...
June 12, 2018: Blood Advances
https://www.readbyqxmd.com/read/29886623/-pulmonary-vascular-remodeling-is-prior-to-the-increase-in-pulmonary-hypertension-of-chronic-obstructive-pulmonary-disease
#16
X T Guo, Y C Fan, B W Hao, X Cao, L Zhu, J X He, X Sun, J Chen
Objective: To explore the remodeling of pulmonary arterioles in chronic obstructive pulmonary disease (COPD), and its effect on hemorheology of proximal pulmonary arteries, right ventricular structure and function , and the potential mechanisms. Method: A total of 34 patients undergoing surgical treatment for lung tumors admitted to the General Hospital of Ningxia Medical University were included in the study. According to the preoperative lung function, there were 15 patients with COPD complicated with lung tumor (COPD group) and 19 patients with normal pulmonary function with lung tumor (control group)...
June 12, 2018: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/29880735/-arabidopsis-transcription-factor-myb102-increases-plant-susceptibility-to-aphids-by-substantial-activation-of-ethylene-biosynthesis
#17
Lin Zhu, Jiansheng Guo, Zhongyou Ma, Jianfei Wang, Cheng Zhou
Induction of ethylene biosynthesis by aphids increases the susceptibility of several plant species to aphids. Recent studies have indicated that some MYB transcription factors regulate the phloem-based defense against aphid infestation by modulating ethylene (ET) signaling. Arabidopsis MYB102 has previously been shown to be induced by wound signaling and regulate defense response against chewing insects. However, it remains unclear whether Arabidopsis MYB102 takes part in the defense response of plants to aphids...
June 7, 2018: Biomolecules
https://www.readbyqxmd.com/read/29867516/on-the-effects-of-reactive-oxygen-species-and-nitric-oxide-on-red-blood-cell-deformability
#18
Lukas Diederich, Tatsiana Suvorava, Roberto Sansone, T C Stevenson Keller, Frederik Barbarino, Thomas R Sutton, Christian M Kramer, Wiebke Lückstädt, Brant E Isakson, Holger Gohlke, Martin Feelisch, Malte Kelm, Miriam M Cortese-Krott
The main function of red blood cells (RBCs) is the transport of respiratory gases along the vascular tree. To fulfill their task, RBCs are able to elastically deform in response to mechanical forces and, pass through the narrow vessels of the microcirculation. Decreased RBC deformability was observed in pathological conditions linked to increased oxidative stress or decreased nitric oxide (NO) bioavailability, like hypertension. Treatments with oxidants and with NO were shown to affect RBC deformability ex vivo , but the mechanisms underpinning these effects are unknown...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29863955/atezolizumab-for-first-line-treatment-of-metastatic-nonsquamous-nsclc
#19
RANDOMIZED CONTROLLED TRIAL
Mark A Socinski, Robert M Jotte, Federico Cappuzzo, Francisco Orlandi, Daniil Stroyakovskiy, Naoyuki Nogami, Delvys Rodríguez-Abreu, Denis Moro-Sibilot, Christian A Thomas, Fabrice Barlesi, Gene Finley, Claudia Kelsch, Anthony Lee, Shelley Coleman, Yu Deng, Yijing Shen, Marcin Kowanetz, Ariel Lopez-Chavez, Alan Sandler, Martin Reck
BACKGROUND: The cancer-cell-killing property of atezolizumab may be enhanced by the blockade of vascular endothelial growth factor-mediated immunosuppression with bevacizumab. This open-label, phase 3 study evaluated atezolizumab plus bevacizumab plus chemotherapy in patients with metastatic nonsquamous non-small-cell lung cancer (NSCLC) who had not previously received chemotherapy. METHODS: We randomly assigned patients to receive atezolizumab plus carboplatin plus paclitaxel (ACP), bevacizumab plus carboplatin plus paclitaxel (BCP), or atezolizumab plus BCP (ABCP) every 3 weeks for four or six cycles, followed by maintenance therapy with atezolizumab, bevacizumab, or both...
June 14, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29847659/neurofibromin-deficiency-induces-endothelial-cell-proliferation-and-retinal-neovascularization
#20
Hanfang Zhang, Farlyn Z Hudson, Zhimin Xu, Rebekah Tritz, Modesto Rojas, Chintan Patel, Stephen B Haigh, Zsuzsanna Bordán, David A Ingram, David J Fulton, Neal L Weintraub, Ruth B Caldwell, Brian K Stansfield
Purpose: Neurofibromatosis type 1 (NF1) is the result of inherited mutations in the NF1 tumor suppressor gene, which encodes the protein neurofibromin. Eye manifestations are common in NF1 with recent reports describing a vascular dysplasia in the retina and choroid. Common features of NF1 retinopathy include tortuous and dilated feeder vessels that terminate in capillary tufts, increased endothelial permeability, and neovascularization. Given the retinal vascular phenotype observed in persons with NF1, we hypothesize that preserving neurofibromin may be a novel strategy to control pathologic retinal neovascularization...
May 1, 2018: Investigative Ophthalmology & Visual Science
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