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T Kotwica, J Relewicz, A Rojek, M Tupikowska-Marzec, M Kabaj, B Karolko, J Maj, G Bednarek-Tupikowska, W Kosmala, J C Szepietowski, M Przewlocka-Kosmala
BACKGROUND: Psoriasis has been shown to increase cardiovascular risk, and a contributor to this might be enhanced myocardial fibrosis promoted by the disease-associated proinflammatory milieu. OBJECTIVE: We sought to investigate the relationship of galectin-3 (Gal-3) - a recognized mediator of fibrosis with inflammatory activation and left ventricular (LV) systolic and diastolic function in patients with psoriasis. METHODS: We enrolled 102 psoriatic patients (mean age: 52...
August 11, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
Sabrina Santarsia, Ana Sofia Grosso, Filipa Trovão, Jesús Jiménez-Barbero, Ana Luísa Carvalho, Cristina Nativi, Filipa Marcelo
Overexpression of the Thomsen-Friedenreich (TF) antigen in cell membrane proteins occurs in 90% of adenocarcinomas. Additionally, the binding of the TF-antigen to human galectin-3 (Gal-3), also frequently overexpressed in malignancy, promotes cancer progression and metastasis. In this context, structures that interfere with this specific interaction display the potential to prevent cancer metastasis. Herein, a multidisciplinary approach, combining the optimized synthesis of a TF-antigen mimetic with NMR, X-ray crystallography methods and isothermal titration calorimetry assays has been employed to unravel the molecular structural details that govern the Gal-3/TF-mimetic interaction...
August 9, 2018: ChemMedChem
Michal Halaj, Mária Matulová, Martina Šutovská, Jana Barboríková, Ivana Kazimierová, Soňa Fraňová, Pavel Přibyl, Vladislav Cepák, Jaromír Lukavský, Peter Capek
Microalgae occupy all territories and their products represent a rich source of phytochemicals for human being. Green microalga Dictyosphaerium chlorelloides was found to be a significant producer of the extracellular biopolymer. Dominant components of the biopolymer were found to be Gal (39 wt%) with its methyl derivatives (15 wt%), Rha (19 wt%) and Man (14 wt%). 2-OMe-Gal was found to be the major derivative while other sugars, namely 3-OMe-, 6-OMe- and 2,3-di-OMe-Gal, 3-OMe-Glc and 4-OMe-Xyl were in smaller amounts...
October 15, 2018: Carbohydrate Polymers
T N Enina, V A Kuznetsov, A M Soldatova, T I Petelina, D V Krinochkin, S M Dyachkov, A Y Rychkov, T Y Gorbunova
AIM: To study the relationship between levels of sex hormones and effectiveness of cardiac resynchronisation therapy (CRT) in men with chronic heart failure (CHF). MATERIALS AND METHODS: The best response to CRT (mean time, 38 [19,0;53,7] months) was identifed by a maximum decrease in left ventricular end-systolic volume (LVESV) in 58 men (mean age, 54.8±9.6) with CHF (61% IHD). Based on testosterone (TES) level, patients were divided into group 1 (n=28; 48%) - TES < median value (13...
2018: Kardiologiia
Zong-Sheng Wu, Jing-Jou Lo, Sheng-Hua Wu, Chau-Zen Wang, Rong-Fu Chen, Su-Shin Lee, Chee-Yin Chai, Shu-Hung Huang
Hyperbaric oxygen (HBO) treatment has been proven to decrease neuroinflammation in rats. This study aimed to determine the potential mechanism underlying the anti-inflammatory effects of HBO treatment on burn-induced neuroinflammation in rats. Thirty-six adult male Sprague-Dawley (SD) rats were randomly assigned to the following six groups ( n = 6 per group): (1) sham burn with sham HBO treatment; (2) sham burn with HBO treatment; (3) burn with one-week sham HBO treatment; (4) burn with two-week sham HBO treatment; (5) burn with one-week HBO treatment; and (6) burn with two-week HBO treatment...
July 27, 2018: International Journal of Molecular Sciences
Sefora Conti, Akiva Vexler, Lior Hagoel, Lital Kalich-Philosoph, Benjamin W Corn, Nir Honig, Natan Shtraus, Yaron Meir, Ilan Ron, Isaac Eliaz, Shahar Lev-Ari
BACKGROUND: Radiotherapy is one of the primary therapies for localized prostatic carcinoma. Therefore, there is an emerging need to sensitize prostatic cancer cells to chemotherapy/radiotherapy. Modified citrus pectin (MCP) is an effective inhibitor of galectin-3 (Gal-3), which is correlated with tumor progression, proliferation, angiogenesis, and apoptosis. PURPOSE: This study was directed to evaluate the efficacy of combining ionizing radiation (IR) with MCP on PCa cells...
July 25, 2018: Integrative Cancer Therapies
Rosetta Ragusa, Concetta Prontera, Arianna Di Molfetta, Manuela Cabiati, Silvia Masotti, Silvia Del Ry, Antonio Amodeo, Maria Giovanna Trivella, Aldo Clerico, Chiara Caselli
BACKGROUND: Ventricular Assist Device (VAD) as bridge to transplantation is a common therapy for adult with heart failure (HF), but VAD use is increasing also in children. Cardiac and inflammatory biomarkers have an important role in the diagnosis and prognosis of HF in adults, but their role in paediatric setting is unknown. The aim of this study was to examine changes in cardiac and inflammatory biomarkers, both in HF paediatric and adult patients, before and following VAD. METHODS: Cardiac (NT-proBNP, cTnI, sST2,Gal-3) and inflammatory (IL-6,IL-8) biomarkers were determined in plasma collected from 12 paediatric patients and 7adult patients with HF, before and at 4 h,1,3,7,14 and 30 days after VAD implant...
July 21, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
Henrique Rocha Mendonça, Juliana Nicolau Aranha Carvalho, Carla Andreia Abreu, Domethila Mariano de Souza Aguiar Dos Santos, Julia Rios Carvalho, Suelen Adriani Marques, Karin da Costa Calaza, Ana Maria Blanco Martinez
Diabetic retinopathy is the leading cause of acquired blindness in working-age individuals. Recent work has revealed that neurodegeneration occurs earlier than vascular insult and that distal optic nerve damage precedes retinal degeneration and vascular insult. Since we have shown that optic nerve degeneration is reduced after optic nerve crush in Galectin-3 knockout (Gal-3 -/-) mice, we decided to investigate whether Gal-3 -/- could relieve inflammation and preserve both neurons and the structure of the retina and optic nerve following 8 weeks of diabetes...
July 14, 2018: Brain Research
Tamara Maghathe, William K Miller, Luke Mugge, Tarek R Mansour, Jason Schroeder
INTRODUCTION: Pituitary adenomas (PAs) are primary central nervous system (CNS) tumors, accounting for as much as 25% of intracranial neoplasms. Although existing remedies show success in treating most PAs, treatment of invasive and non-functioning PAs, in addition to functioning PAs unresponsive to standard therapy, remains challenging. With the continually increasing understanding of biochemical pathways involved in tumorigenesis, immunotherapy stands as a promising alternative therapy for pituitary tumors that are resistant to standard therapy...
July 17, 2018: Journal of Neurosurgical Sciences
Ghulam M Ashraf, Saleh S Baeesa
We performed this study to investigate the possibility of a definitive pattern of Galectin-3 (Gal-3) expression in the cerebrospinal fluid (CSF) and serum of Alzheimer's disease (AD) and Amyotrophic Lateral Sclerosis (ALS) patients. In our study, we collected the CSF and serum samples of 31 AD patients, 19 ALS patients and 50 normal healthy subjects (controls). Quantitative ELISA measured Gal-3 concentrations in CSF and serum samples. A comparative analysis was performed to analyze and understand the Gal-3 expression pattern...
2018: Frontiers in Neuroscience
Milica M Borovcanin, Slavica M Janicijevic, Ivan P Jovanovic, Nevena Gajovic, Nebojsa N Arsenijevic, Miodrag L Lukic
Schizophrenia and treatment of this disorder are often accompanied with metabolic syndrome and cardiovascular issues. Alterations in the serum level of innate immune mediators, such as interleukin-33 (IL-33) and its receptor IL-33R (ST2) and Galectin-3 (Gal-3) were observed in these conditions. Moreover, these parameters are potential prognostic and therapeutic markers. There is also accumulating evidence that these molecules play a role in neuroinflammation. Therefore, in this study we have investigated the serum level of Gal-3, IL-33 and soluble ST2 (sST2) in different stages of schizophrenia...
2018: Frontiers in Psychiatry
Shannyn G Genders, Karlene J Scheller, Emily J Jaehne, Bradley J Turner, Andrew J Lawrence, Susanne M Brunner, Barbara Kofler, Maarten van den Buuse, Elvan Djouma
Galanin is a neuropeptide which mediates its effects via three G-protein coupled receptors (GAL1-3 ). Administration of a GAL3 antagonist reduces alcohol self-administration in animal models while allelic variation in the GAL3 gene has been associated with an increased risk of alcohol use disorders in diverse human populations. Based on the association of GAL3 with alcoholism, we sought to characterize drug-seeking behavior in GAL3 -deficient mice for the first time. In the two-bottle free choice paradigm, GAL3 -KO mice consistently showed a significantly increased preference for ethanol over water when compared to wildtype littermates...
July 9, 2018: Addiction Biology
Andrea Flores-Ibarra, Sabine Vértesy, Francisco J Medrano, Hans-Joachim Gabius, Antonio Romero
Among members of the family of adhesion/growth-regulatory galectins, galectin-3 (Gal-3) bears a unique modular architecture. A N-terminal tail (NT) consisting of the N-terminal segment (NTS) and nine collagen-like repeats is linked to the canonical lectin domain. In contrast to bivalent proto- and tandem-repeat-type galectins, Gal-3 is monomeric in solution, capable to self-associate in the presence of bi- to multivalent ligands, and the NTS is involved in cellular compartmentalization. Since no crystallographic information on Gal-3 beyond the lectin domain is available, we used a shortened variant with NTS and repeats VII-IX...
June 29, 2018: Scientific Reports
Tetsuya Itabashi, Yasunobu Arima, Daisuke Kamimura, Kotaro Higuchi, Yoshio Bando, Hiromi Takahashi-Iwanaga, Masaaki Murakami, Masahiko Watanabe, Toshihiko Iwanaga, Junko Nio-Kobayashi
Multiple sclerosis (MS) is an autoimmune disease in which pathogenic T cells play an important role, and an experimental autoimmune encephalomyelitis (EAE) is used as an animal model of MS. Galectins are β-galactoside-binding lectins and involved in various physiological and pathological events. Among fifteen members of galectins, galectin-1, -8, and -9 play immunosuppressive roles in MS and EAE; however, the role of galectin-3 (gal-3) is complex and controversial. We examined expression of gal-3 in the spinal cord and nerve roots of EAE mice...
September 2018: Neurochemistry International
Xinqi Wu, Anita Giobbie-Hurder, Erin M Connolly, Jingjing Li, Xiaoyun Liao, Mariano Severgnini, Jun Zhou, Scott Rodig, F Stephen Hodi
The combination of CTLA-4 blockade ipilimumab (Ipi) with VEGF-A blocking antibody bevacizumab (Bev) has demonstrated favorable clinical outcomes in patients with advanced melanoma. Galectin-3 (Gal-3) plays a prominent role in tumor growth, metastasis, angiogenesis, and immune evasion. Here we report that Ipi plus Bev (Ipi-Bev) therapy increased Gal-3 antibody titers by 50% or more in approximately one third of treated patients. Antibody responses to Gal-3 were associated with higher complete and partial responses and better overall survival...
2018: Oncoimmunology
Oliver Dörr, Claudia Walther, Christoph Liebetrau, Till Keller, Thomas Sommer, Niklas Boeder, Matthias Bayer, Pascal Bauer, Helge Möllmann, Luise Gaede, Christian Troidl, Sandra Voss, Timm Bauer, Christian W Hamm, Holger Nef
BACKGROUND: Percutaneous mitral valve repair (PMVR) is an interventional treatment option in patients with severe mitral regurgitation (MR) who have a high risk for open-heart surgery. Currently, there is limited information about predictors of procedural success after PMVR. Galectin-3 (Gal-3) and ST2 induce fibrotic alterations in severe MR and heart failure. The aim of the present study was to examine the predictive value of Gal-3 and ST2 as specific indicators of therapeutic success in high-risk patients undergoing PMVR...
June 12, 2018: Clinical Cardiology
Mohammad Farhad, Annah S Rolig, William L Redmond
The efficacy of cancer immunotherapy is limited, in part, by the multitude of immunosuppressive mechanisms present within the tumor microenvironment (TME). Galectin-3 (Gal-3) is a lectin that contributes to TME immunosuppression and regulates diverse functions including cellular homeostasis and cancer biology. Increased Gal-3 expression during cancer progression augments tumor growth, invasiveness, metastatic potential, and immune suppression, which highlights the potential use of Gal-3 as a therapeutic target capable of modulating anti-tumor immunity...
2018: Oncoimmunology
Courtney Tuegel, Ronit Katz, Mariam Alam, Zeenat Bhat, Keith Bellovich, Ian de Boer, Frank Brosius, Crystal Gadegbeku, Debbie Gipson, Jennifer Hawkins, Jonathan Himmelfarb, Wenjun Ju, Bryan Kestenbaum, Matthias Kretzler, Cassianne Robinson-Cohen, Susan Steigerwalt, Nisha Bansal
RATIONALE & OBJECTIVE: Inflammation, cardiac remodeling, and fibrosis may explain in part the excess risk for cardiovascular disease (CVD) in patients with chronic kidney disease (CKD). Growth differentiation factor 15 (GDF-15), galectin 3 (Gal-3), and soluble ST2 (sST2) are possible biomarkers of these pathways in patients with CKD. STUDY DESIGN: Observational cohort study. SETTING & PARTICIPANTS: Individuals with CKD enrolled in either of 2 multicenter CKD cohort studies: the Seattle Kidney Study or C-PROBE (Clinical Phenotyping and Resource Biobank Study)...
June 1, 2018: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
Zhengde Tang, Lefeng Zeng, Yanjun Lin, Zhihua Han, Jun Gu, Changqian Wang, Huili Zhang
BACKGROUND: Left atrial appendage (LAA) is gaining increasing attention in patients with atrial fibrillation (AF) in the context of cardioembolic stroke. Galectin-3 (Gal-3) is a mediator of profibrotic pathways and is associated with an increased incidence of heart failure. However, the role of Gal-3 in LAA remodelling and thrombus formation in AF has not been evaluated. METHODS: This prospective study included 153 consecutive patients with paroxysmal (n=58), persistent (n=55) or permanent (n=40) nonvalvular AF...
May 14, 2018: Heart, Lung & Circulation
Milan Jovanovic, Nevena Gajovic, Natasa Zdravkovic, Marina Jovanovic, Milena Jurisevic, Danilo Vojvodic, Veljko Maric, Aleksandar Arsenijevic, Ivan Jovanovic
Background and Objectives: The aim of the study was to determine systemic and fecal values of galectin-3 and pro- and anti-inflammatory cytokines in patients with CRC and the relationship with clinicopathological aspects. Methods: Concentrations of galectin-3, TNF- α , TGF- β , IL-10, and IL-1 β were analyzed in samples of blood and stool of 60 patients with CRC. Results: Systemic concentration of TNF- α was significantly lower in patients with severe diseases (advanced TNM stage, nuclear grade, and poor histological differentiation) as in patients with more progressive CRC (lymph and blood vessel invasion, presence of metastasis)...
2018: Mediators of Inflammation
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