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https://www.readbyqxmd.com/read/28811803/a-study-of-galactin-3-on-fine-needle-aspiration-as-a-diagnostic-marker-differentiating-benign-from-malignant-thyroid-neoplasm
#1
Alliya Muzafar, Mulazim Hussain Bukhari, Ihtesham Uddin Qureshi
BACKGROUND & OBJECTIVE: Thyroid nodules are very common in our setup and their diagnosis on fine needle aspiration is not easy and is a taxing affair. It is a challenge to differentiate between follicular adenoma and follicular carcinoma without histology. Our objective was to investigate the role of Galectin-3 in fine needle aspirates of thyroid nodules as a prospective diagnostic marker and consequently its ability to differentiate benign from malignant neoplasms. METHODS: The research was conducted at the department of Pathology, King Edward Medical University, in association with other teaching institutions of Lahore from June 2012 to July 2014...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28811319/galectin-8-activates-dendritic-cells-and-stimulates-antigen-specific-immune-response-elicitation
#2
Julieta Carabelli, Valeria Quattrocchi, Alejandra D'Antuono, Patricia Zamorano, María Virginia Tribulatti, Oscar Campetella
Galectin-8 (Gal-8) is a mammalian β-galactoside-binding lectin, endowed with proinflammatory properties. Given its capacity to enhance antigen-specific immune responses in vivo, we investigated whether Gal-8 was also able to promote APC activation to sustain T cell activation after priming. Both endogenous [dendritic cells (DCs)] and bone marrow-derived DCs (BMDCs) treated with exogenous Gal-8 exhibited a mature phenotype characterized by increased MHC class II (MHCII), CD80, and CD86 surface expression. Moreover, Gal-8-treated BMDCs (Gal-8-BMDCs) stimulated antigen-specific T cells more efficiently than immature BMDCs (iBMDCs)...
August 15, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28810662/galectin-9-binds-to-o-glycans-on-protein-disulfide-isomerase
#3
Katrin Schaefer, Nicholas E Webb, Mabel Pang, Jenny E Hernandez-Davies, Katharine P Lee, Pascual Gonzalez, Martin V Douglass, Benhur Lee, Linda G Baum
Changes in the T cell surface redox environment regulate critical cell functions, such as cell migration, viral entry and cytokine production. Cell surface protein disulfide isomerase (PDI) contributes to the regulation of T cell surface redox status. Cell surface PDI can be released into the extracellular milieu or can be internalized by T cells. We have found that galectin-9, a soluble lectin expressed by T cells, endothelial cells and dendritic cells, binds to and retains PDI on the cell surface. While endogenous galectin-9 is not required for basal cell surface PDI expression, exogenous galectin-9 mediated retention of cell surface PDI shifted the disulfide/thiol equilibrium on the T cell surface...
September 1, 2017: Glycobiology
https://www.readbyqxmd.com/read/28805274/quantitative-characterization-of-galectin-3-c-affinity-mass-spectrometry-measurements-comprehensive-data-analysis-obstacles-shortcuts-and-robustness
#4
Marko Haramija, Jasna Peter-Katalinić
RATIONALE: Affinity mass spectrometry (AMS) is an emerging tool in the field of study of protein-carbohydrate complexes. However, experimental obstacles and data analysis is preventing faster integration of AMS methods in the field of glycosciences. Here we show how analysis of direct ESI-MS AMS data can be simplified for screening purposes, even for complex AMS spectra. METHODS: Direct ESI-MS assay was tested in this study, and binding data for the galectin-3C•lactose complex were analyzed using comprehensive and simplified data analysis approach...
August 14, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28801238/a-co-inhibitory-alliance-in-myeloid-leukemia-tim-3-galectin-9-complex-as-a-new-target-for-checkpoint-blockade-therapy
#5
M Alper Kursunel, Gunes Esendagli
No abstract text is available yet for this article.
August 4, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28800954/a-tim-3-oligonucleotide-aptamer-enhances-t-cell-functions-and-potentiates-tumor-immunity-in-mice
#6
Tal Gefen, Iris Castro, Darija Muharemagic, Yvonne Puplampu-Dove, Shradha Patel, Eli Gilboa
T cell immunoglobulin-3 (TIM-3) is a negative regulator of interferon-γ (IFN-γ) secreting CD4(+) T cells and CD8(+) T cytotoxic cells. Recent studies have highlighted the role of TIM-3 as an important mediator of CD8(+) T cell exhaustion in the setting of chronic viral infections and cancer. In murine tumor models, antibody blockade of TIM-3 with anti-TIM-3 antibodies as monotherapy has no or minimal antitumor activity, suggesting that TIM-3 signaling exerts an accessory or amplifying effect in keeping immune responses in check...
August 8, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28800068/galectin-3-performance-in-histologic-a-cytologic-assessment-of-thyroid-nodules-a-systematic-review-and-meta-analysis
#7
REVIEW
Pierpaolo Trimboli, Camilla Virili, Francesco Romanelli, Anna Crescenzi, Luca Giovanella
The literature on Galectin-3 (Gal-3) was systematically reviewed to achieve more robust information on its histologic reliability in identifying thyroid cancers and on the concordance between Gal-3 test in histologic and cytologic samples. A computer search of the PubMed and Scopus databases was conducted by combinations of the terms thyroid and Gal-3. Initially, 545 articles were found and, after their critical review, 52 original papers were finally included. They reported 8172 nodules with histologic evaluation of Gal-3, of which 358 with also preoperative FNAC Gal-3 assessment...
August 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28797814/the-roles-and-mechanisms-of-homogalacturonan-and-rhamnogalacturonan-i-pectins-on-the-inhibition-of-cell-migration
#8
Yuying Fan, Lin Sun, Siwen Yang, Congcong He, Guihua Tai, Yifa Zhou
Our previous paper reported the structure of ginseng pectic polysaccharides related to the cell migration inhibitory effects, but the underlying mechanisms are poorly understood. In this manuscript, rhamnogalacturonan I (RGI)-rich pectins prepared from ginseng pectin were investigated for their effect on cell migration. The results indicated that the combination of homogalacturonan (HG) and RGI-rich pectins exerted stronger effects than either HG- or RGI-rich pectin alone. Further studies revealed that the effects of HG- and RGI-rich pectins were dependent on pretreatment, which caused alterations in cell morphologies such as cell size and shape, focal adhesion, and the organization of actin filaments, suggesting that HG and RGI pectins exert synergistic effects on cell migration, likely through different ways...
August 7, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28796164/enzymatic-synthesis-of-n-acetyllactosamine-lacnac-type-1-oligomers-and-characterization-as-multivalent-galectin-ligands
#9
Thomas Fischöder, Dominic Laaf, Carina Dey, Lothar Elling
Repeats of the disaccharide unit N-acetyllactosamine (LacNAc) occur as type 1 (Galβ1, 3GlcNAc) and type 2 (Galβ1, 4GlcNAc) glycosylation motifs on glycoproteins and glycolipids. The LacNAc motif acts as binding ligand for lectins and is involved in many biological recognition events. To the best of our knowledge, we present, for the first time, the synthesis of LacNAc type 1 oligomers using recombinant β1,3-galactosyltransferase from Escherichia coli and β1,3-N-acetylglucosaminyltranferase from Helicobacter pylori...
August 10, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28795637/do-angptl-4-and-galectin-3-reflect-the-severity-of-coronary-artery-disease
#10
Luxitaa Goenka, Melvin George, Vishakha Singh, Amrita Jena, Deepika Seshadri, Vasanth Karunakaran, Dhandapani Vellala Elumalai, Jamuna Rani, Ilango Kaliappan
BACKGROUND: Coronary artery disease (CAD) is one of the leading causes of mortality and morbidity worldwide. We thereby sought to investigate whether the biomarkers, angiopoietin-like 4 (ANGPTL-4) and galectin-3, reflect the severity of CAD. METHODS: Patients were screened based on inclusion/exclusion criteria and written informed consent was obtained from the patients. Serum ANGPTL-4 and galectin-3 was quantified using enzyme-linked immunosorbent assay (ELISA) and correlated with the Global Registry of Acute Coronary Events (GRACE) and GENSINI score using Spearman's rank correlation coefficient and multivariate analysis...
August 1, 2017: Therapeutic Advances in Cardiovascular Disease
https://www.readbyqxmd.com/read/28794446/impaired-endo-lysosomal-membrane-integrity-accelerates-the-seeding-progression-of-%C3%AE-synuclein-aggregates
#11
Peizhou Jiang, Ming Gan, Shu-Hui Yen, Pamela J McLean, Dennis W Dickson
In neurodegenerative diseases, seeding is a process initiated by the internalization of exogenous protein aggregates. Multiple pathways for internalization of aggregates have been proposed, including direct membrane penetration and endocytosis. To decipher the seeding mechanisms of alpha-synuclein (αS) aggregates in human cells, we visualized αS aggregation, endo-lysosome distribution, and endo-lysosome rupture in real-time. Our data suggest that exogenous αS can seed endogenous cytoplasmic αS by either directly penetrating the plasma membrane or via endocytosis-mediated endo-lysosome rupture, leading to formation of endo-lysosome-free or endo-lysosome-associated αS aggregates, respectively...
August 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28775154/a-genome-wide-crispr-screen-reconciles-the-role-of-n-linked-glycosylation-in-galectin-3-transport-to-the-cell-surface
#12
Sarah E Stewart, Sam A Menzies, Stephanie J Popa, Natalia Savinykh, Anna Petrunkina Harrison, Paul J Lehner, Kevin Moreau
Galectins are a family of lectin binding proteins expressed both intracellularly and extracellularly. Galectin-3 (Gal-3) is expressed at the cell surface, however, Gal-3 lacks a signal sequence and the mechanism of Gal-3 transport to the cell surface remain poorly understood. Here, using a genome-wide CRISPR/Cas9 forward genetic screen for regulators of Gal-3 cell surface localization we identified genes encoding glycoproteins, enzymes involved in N-linked glycosylation, regulators of ER-Golgi trafficking and proteins involved in immunity...
August 3, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28772217/interaction-between-galectin-9-tim-3-pathway-and-follicular-helper-cd4-t-cells-contributes-to-viral-persistence-in-chronic-hepatitis-c
#13
Ya Zhuo, Yi-Fu Zhang, Hong-Jie Wu, Lei Qin, Yan-Ping Wang, A-Min Liu, Xin-Hong Wang
Both Galectin 9 (Gal-9)/T-cell immunoglobulin and mucin domain-containing protein 3 (TIM-3) pathway and follicular helper CD4(+) T (Tfh) cells play important roles in persistent hepatitis C virus (HCV) infection. Thus, we aimed to investigate the regulatory role of interaction between Gal-9/TIM-3 pathway and Tfh cells in chronic hepatitis C. A total of 44 chronic hepatitis C patients and 19 normal controls (NCs) were enrolled in this study. Purified CD4(+) T cells were cultured by TIM-3 Fc protein, recombinant Gal-9, or IL-21 for 48h...
July 31, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28769980/galectin-3-knockdown-impairs-survival-migration-and-immunomodulatory-actions-of-mesenchymal-stromal-cells-in-a-mouse-model-of-chagas-disease-cardiomyopathy
#14
Bruno Solano de Freitas Souza, Kátia Nunes da Silva, Daniela Nascimento Silva, Vinícius Pinto Costa Rocha, Bruno Diaz Paredes, Carine Machado Azevedo, Carolina Kymie Nonaka, Gisele Batista Carvalho, Juliana Fraga Vasconcelos, Ricardo Ribeiro Dos Santos, Milena Botelho Pereira Soares
Therapies based on transplantation of mesenchymal stromal cells (MSC) hold promise for the management of inflammatory disorders. In chronic Chagas disease cardiomyopathy (CCC), caused by chronic infection with Trypanosoma cruzi, the exacerbated immune response plays a critical pathophysiological role and can be modulated by MSC. Here, we investigated the role of galectin-3 (Gal-3), a beta-galactoside-binding lectin with several actions on immune responses and repair process, on the immunomodulatory potential of MSC...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28765379/correction-noninvasive-in-vivo-imaging-and-biologic-characterization-of-thyroid-tumors-by-immunopet-targeting-of-galectin-3
#15
(no author information available yet)
No abstract text is available yet for this article.
August 1, 2017: Cancer Research
https://www.readbyqxmd.com/read/28762935/-galectin-3-markers-of-oxidative-stress-and-renal-dysfunction-in-patients-with-chronic-heart-failure
#16
E A Medvedeva, I I Berezin, Y V Shchukin
OBJECTIVE: to determine levels of galectin-3, markers of renal dysfunction, and plasma oxidative stress; to assess their correlation in patients with chronic heart failure (CHF) of various severity. MATERIAL AND METHODS: We included in this study 157 CHF patients (with documented prior myocardial infarction. Patients were divided into 3 groups according to their NYHA functional class (group 1 - class II n=60, group 2 - class III n=52, group 3 - class IV n=45). All patients underwent clinical examination, echocardiography...
March 2017: Kardiologiia
https://www.readbyqxmd.com/read/28762934/-diagnostic-value-of-biochemical-markers-in-patients-with-chronic-heart-failure-with-reduced-borderline-and-preserved-left-ventricular-ejection-fraction
#17
E V Bazaeva, R P Myasnikov, V A Metelskaya, S A Boytsov
PURPOSE OF THE STUDY: The study of the diagnostic value of biochemical markers of myocardial stress and inflammation in chronic heart failure (CHF) with different values of the ejection fraction (EF) of the left ventricle (LV). MATERIAL AND METHODS: The cross-sectional study included 105 patients aged 24 to 84 years (mean 58+/-14 years) with stable chronic heart failure I-II NYHA functional class classification. The causes of CHF were ischemic heart disease (IHD) in 33% of patients and arterial hypertension (AH) - 67%...
March 2017: Kardiologiia
https://www.readbyqxmd.com/read/28758988/beneficial-effects-of-galectin-3-blockade-in-vascular-and-aortic-valve-alterations-in-an-experimental-pressure-overload-model
#18
Jaime Ibarrola, Ernesto Martínez-Martínez, J Rafael Sádaba, Vanessa Arrieta, Amaia García-Peña, Virginia Álvarez, Amaya Fernández-Celis, Alicia Gainza, Patrick Rossignol, Victoria Cachofeiro Ramos, Natalia López-Andrés
Galectin-3 (Gal-3) is involved in cardiovascular fibrosis and aortic valve (AV) calcification. We hypothesized that Gal-3 pharmacological inhibition with modified citrus pectin (MCP) could reduce aortic and AV remodeling in normotensive rats with pressure overload (PO). Six weeks after aortic constriction, vascular Gal-3 expression was up-regulated in male Wistar rats. Gal-3 overexpression was accompanied by an increase in the aortic media layer thickness, enhanced total collagen, and augmented expression of fibrotic mediators...
July 31, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28756232/tim3-galectin-9-alleviates-the-inflammation-of-tao-patients-via-suppressing-akt-nf-kb-signaling-pathway
#19
Lihua Luo, Dongmei Li, Kang Wang, Shuang Li, Jigang Yang, Chunlin Li, Wei Feng, Hong Guo
Thyroid-associated ophthalmopathy (TAO) is an autoimmune disease. Studies showed that T helper 1 (Th1), Th2, and Th17 cells play important roles in the pathology of TAO. Tim-3 and its only known ligand Galectin-9 (Gal-9) is related to the suppression of Th1 and Th17 cytokine secretion. This study aims to investigate the role of Tim3/Gal-9 in the inflammatory response of TAO. In this study, the levels of Tim3, Gal-9, and cytokines of Th1 (TNF-α and IFN-γ), Th2 (IL-4), and Th17 (IL-17) cells were analyzed in the blood samples of TAO patients and healthy controls as well as in orbital fibroblasts...
July 26, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28752547/inflammation-and-insulin-resistance-new-targets-encourage-new-thinking-galectin-3-and-ltb4-are-pro-inflammatory-molecules-that-can-be-targeted-to-restore-insulin-sensitivity
#20
REVIEW
Andrew M F Johnson, Shaocong Hou, Pingping Li
Galectin-3 and LTB4 are pro-inflammatory molecules recently shown to directly cause insulin resistance in mouse and human cells. They are highly expressed in the obese state, and can be targeted both genetically and pharmacologically to improve insulin sensitivity in vivo. This expands on previous research showing that targeting inflammatory cytokines can be insulin sensitizing in animal models. However, translating these potential therapies into the human setting remains challenging. Here we review this latest research, and discuss how balancing their pleiotropic functions, the action of the microbiome, and the ability to identify relevant patient populations are vital considerations for successful anti-inflammatory insulin sensitizing therapy...
July 28, 2017: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
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