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https://www.readbyqxmd.com/read/28231240/galectin-3-histone-deacetylases-and-hedgehog-signaling-possible-convergent-targets-in-schistosomiasis-induced-liver-fibrosis
#1
REVIEW
Felipe Leite de Oliveira, Katia Carneiro, José Marques Brito, Mariana Cabanel, Jonathas Xavier Pereira, Ligia de Almeida Paiva, Wingkin Syn, Neil C Henderson, Marcia Cury El-Cheikh
Schistosomiasis affects approximately 240 million people in the world. Schistosoma mansoni eggs in the liver induce periportal fibrosis and hepatic failure driven by monocyte recruitment and macrophage activation, resulting in robust Th2 response. Here, we suggested a possible involvement of Galectin-3 (Gal-3), histone deacetylases (HDACs), and Hedgehog (Hh) signaling with macrophage activation during Th1/Th2 immune responses, fibrogranuloma reaction, and tissue repair during schistosomiasis. Gal-3 is highly expressed by liver macrophages (Kupffer cells) around Schistosoma eggs...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28226203/characteristic-changes-in-decidual-gene-expression-signature-in-spontaneous-term-parturition
#2
Haidy El-Azzamy, Andrea Balogh, Roberto Romero, Yi Xu, Christopher LaJeunesse, Olesya Plazyo, Zhonghui Xu, Theodore G Price, Zhong Dong, Adi L Tarca, Zoltan Papp, Sonia S Hassan, Tinnakorn Chaiworapongsa, Chong Jai Kim, Nardhy Gomez-Lopez, Nandor Gabor Than
Background: The decidua has been implicated in the "terminal pathway" of human term parturition, which is characterized by the activation of pro-inflammatory pathways in gestational tissues. However, the transcriptomic changes in the decidua leading to terminal pathway activation have not been systematically explored. This study aimed to compare the decidual expression of developmental signaling and inflammation-related genes before and after spontaneous term labor in order to reveal their involvement in this process...
February 22, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28217127/cell-intrinsic-galectin-3-attenuates-neutrophil-ros-dependent-killing-of-candida-by-modulating-cr3-downstream-syk-activation
#3
Sheng-Yang Wu, Juin-Hua Huang, Wen-Yu Chen, Yi-Chen Chan, Chun-Hung Lin, Yee-Chun Chen, Fu-Tong Liu, Betty A Wu-Hsieh
Invasive candidiasis is a leading cause of nosocomial bloodstream infection. Neutrophils are the important effector cells in host resistance to candidiasis. To investigate the modulation of neutrophil fungicidal function will advance our knowledge on the control of candidiasis. While recombinant galectin-3 enhances neutrophil phagocytosis of Candida, we found that intracellular galectin-3 downregulates neutrophil fungicidal functions. Co-immunoprecipitation and immunofluorescence staining reveal that cytosolic gal3 physically interacts with Syk in neutrophils after Candida stimulation...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28215640/immunohistochemical-expression-of-galectin-3-is-significantly-associated-with-grade-stage-and-differentiation-of-endometrial-carcinomas
#4
Jaudah Al-Maghrabi, Amer Shafie Abdelrahman, Tawfik Ghabrah, Nadeem Shafique Butt, Basim Al-Maghrabi, Mohamad Nidal Khabaz
This study describes galectin-3 immunohistochemical phenotype and its association with clinicopathological factors in the carcinoma of endometrium. Seventy one cases of endometrial carcinoma and 30 cases of benign and normal endometrium were employed for the detection of galectin-3 protein using tissue microarrays and immunohistochemistry staining. Thirty nine (55%) cases, including 54.2% of endometrioid adenocarcinomas and 55.5% serous carcinomas, were positively stained for galectin-3. Brown granular expression of this glycoprotein was detected in transformed epithelial cells of 36 cases including 28 cases with membranous and cytoplasmic staining and 8 cases with only cytoplasmic staining; nuclear expression was present in stromal cells of the remaining 3 cases...
January 19, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28212715/novel-biomarkers-of-heart-failure
#5
A Savic-Radojevic, M Pljesa-Ercegovac, M Matic, D Simic, S Radovanovic, T Simic
Although substantial improvements have been made in majority of cardiac disorders, heart failure (HF) remains a major health problem, with both increasing incidence and prevalence over the past decades. For that reason, the number of potential biomarkers that could contribute to diagnosis and treatment of HF patients is, almost exponentially, increasing over the recent years. The biomarkers that are, at the moment, more or less ready for use in everyday clinical practice, reflect different pathophysiological processes present in HF...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28212576/galectin-1-knockdown-improves-drug-sensitivity-of-breast-cancer-by-reducing-p-glycoprotein-expression-through-inhibiting-the-raf-1-ap-1-signaling-pathway
#6
Fang Wang, Pengwei Lv, Yuanting Gu, Lin Li, Xin Ge, Guangcheng Guo
Galectin-1 (Gal-1), a member of the galectin family of carbohydrate binding proteins, plays a pivotal role in various cellular processes of tumorigenesis. The regulatory effect of Gal-1 on multidrug resistance (MDR) breast cancer cells is still unclear. qRT-PCR and western blot showed that Gal-1 and MDR gene 1 (MDR1) were both highly expressed in breast tumor tissues and cell lines. MTT assay and flow cytometry revealed that Gal-1 knockdown improved sensitivity to paclitaxel (PTX) and adriamycin (ADR) in MCF-7/PTX and MCF-7/ADR cells via inhibition of cell viability and promotion of cell apoptosis, while MDR1 overexpression weakened the sensitivity to PTX and ADR induced by Gal-1 knockdown...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28196513/metabotropic-glutamate-receptor-5-may-be-involved-in-macrophage-plasticity
#7
Lali Shanshiashvili, Elene Tsitsilashvili, Nino Dabrundashvili, Irine Kalandadze, David Mikeladze
BACKGROUND: Macrophages are a functionally heterogeneous cell population and depending on microenvironments they polarize in two main groups: M1 and M2. Glutamic acid and glutamate receptors may participate in the regulation of macrophage plasticity. To investigate the role of glutamatergic systems in macrophages physiology, we performed the transfection of mGluR5 cDNAs into RAW-264.7 cells. RESULTS: Comparative analysis of modified (RAW-mGluR5 macrophages) and non-modified macrophages (RAW-macrophages) has shown that the RAW-mGluR5 macrophages absorbed more glutamate than control cells and the amount of intracellular glutamate correlated with the expression of excitatory amino acid transporters -2 (EAAT-2)...
February 14, 2017: Biological Research
https://www.readbyqxmd.com/read/28195343/galectin-9-diverse-roles-in-hepatic-immune-homeostasis-and-inflammation
#8
REVIEW
Lucy Golden-Mason, Hugo R Rosen
Glycan-binding proteins which include galectins are involved at all stages of immunity and inflammation, ranging from initiation through resolution. Galectin-9 (Gal-9) is highly expressed in the liver and has a wide variety of biological functions in innate and adaptive immunity that are instrumental in the maintenance of hepatic homeostasis. In the setting of viral hepatitis, increased expression of Gal-9 drives the expansion of regulatory T cells and contraction of effector T cells, thereby favoring viral persistence...
February 13, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28194801/differences-in-eosinophil-molecular-profiles-between-children-and-adults-with-eosinophilic-esophagitis
#9
Christine Lingblom, Timo Käppi, Henrik Bergquist, Mogens Bove, Rikard Arkel, Robert Saalman, Christine Wennerås
BACKGROUND: Eosinophilic esophagitis (EoE) afflicts both children and adults. It has been debated whether pediatric and adult EoE represent different disease entities. The objectives of this study were to determine if the blood eosinophil molecular pattern of children with EoE is: 1) distinct from that of healthy children; and 2) different from that of adults with EoE. METHODS: Blood eosinophils from children and adults with EoE, and healthy controls, were analyzed with flow cytometry regarding levels of CD23, CD44, CD54, CRTH2, FOXP3 and galectin-10...
February 14, 2017: Allergy
https://www.readbyqxmd.com/read/28193861/galectin-3-directs-antimicrobial-guanylate-binding-proteins-to-vacuoles-furnished-with-bacterial-secretion-systems
#10
Eric M Feeley, Danielle M Pilla-Moffett, Erin E Zwack, Anthony S Piro, Ryan Finethy, Joseph P Kolb, Jennifer Martinez, Igor E Brodsky, Jörn Coers
Many invasive bacteria establish pathogen-containing vacuoles (PVs) as intracellular niches for microbial growth. Immunity to these infections is dependent on the ability of host cells to recognize PVs as targets for host defense. The delivery of several host defense proteins to PVs is controlled by IFN-inducible guanylate binding proteins (GBPs), which themselves dock to PVs through poorly characterized mechanisms. Here, we demonstrate that GBPs detect the presence of bacterial protein secretion systems as "patterns of pathogenesis" associated with PVs...
February 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28192531/multi-layered-control-of-galectin-8-mediated-autophagy-during-adenovirus-cell-entry-through-a-conserved-ppxy-motif-in-the-viral-capsid
#11
Charlotte Montespan, Shauna A Marvin, Sisley Austin, Andrew M Burrage, Benoit Roger, Fabienne Rayne, Muriel Faure, Edward M Campell, Carola Schneider, Rudolph Reimer, Kay Grünewald, Christopher M Wiethoff, Harald Wodrich
Cells employ active measures to restrict infection by pathogens, even prior to responses from the innate and humoral immune defenses. In this context selective autophagy is activated upon pathogen induced membrane rupture to sequester and deliver membrane fragments and their pathogen contents for lysosomal degradation. Adenoviruses, which breach the endosome upon entry, escape this fate by penetrating into the cytosol prior to autophagosome sequestration of the ruptured endosome. We show that virus induced membrane damage is recognized through Galectin-8 and sequesters the autophagy receptors NDP52 and p62...
February 13, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28191785/impact-of-the-secretome-of-human-mesenchymal-stem-cells-on-brain-structure-and-animal-behavior-in-a-rat-model-of-parkinson-s-disease
#12
Fábio G Teixeira, Miguel M Carvalho, Krishna M Panchalingam, Ana J Rodrigues, Bárbara Mendes-Pinheiro, Sandra Anjo, Bruno Manadas, Leo A Behie, Nuno Sousa, António J Salgado
Research in the last decade strongly suggests that mesenchymal stem cell (MSC)-mediated therapeutic benefits are mainly due to their secretome, which has been proposed as a possible therapeutic tool for the treatment of Parkinson's disease (PD). Indeed, it has been shown that the MSC secretome increases neurogenesis and cell survival, and has numerous neuroprotective actions under different conditions. Additionally, using dynamic culturing conditions (through computer-controlled bioreactors) can further modulate the MSC secretome, thereby generating a more potent neurotrophic factor cocktail (i...
February 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28186088/current-status-of-immunotherapy-for-gastrointestinal-stromal-tumor
#13
REVIEW
Y Tan, J C Trent, B A Wilky, D A Kerr, A E Rosenberg
Gastrointestinal stromal tumors (GIST) contain tumor-infiltrating immune cells and their presence provides an opportunity and rationale for developing effective forms of immunotherapy. The types of tumor-infiltrating inflammatory cells and relevant immune checkpoint inhibitors are the focus of active investigation. The most numerous tumor-infiltrating inflammatory cells are tumor-associated macrophages (TAMs) and CD3+ T cells. Studies have shown that patients with GISTs that harbor increased numbers of CD3+ T cells have better outcomes...
February 10, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28185839/hypermethylation-of-the-galectin-3-promoter-is-associated-with-poor-prognosis-of-acute-on-chronic-hepatitis-b-liver-failure
#14
Jing Zhao, Yu-Chen Fan, Xin-Yuan Liu, Ze-Hua Zhao, Feng Li, Kai Wang
BACKGROUND AND AIMS: The possible role of galectin-3 in acute-on-chronic hepatitis B liver failure (ACHBLF) remains unknown. This study aimed to determine the methylation status of the galectin-3 promoter in patients with ACHBLF and analyze its prognostic value. METHODS: The methylation status of the galectin-3 promoter in patients with ACHBLF, chronic hepatitis B (CHB) and healthy controls (HCs) was determined by methylation-specific polymerase chain reaction (MSP)...
January 22, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28166391/lactosamine-based-derivatives-as-tools-to-delineate-the-biological-functions-of-galectins-application-to-skin-tissue-repair
#15
Cyrille Grandjean, Johann Dion, Frédérique Deshayes, Nataliya Storozhylova, Tamara Advedissian, Annie Lambert, Mireille Viguier, Charles Tellier, Christophe Dussouy, Françoise Poirier
Galectins have been recognized as potential novel therapeutic targets in connection with the numerous fundamental biological processes which they are involved in. Galectins are key players of homeostasis and as such, their expression and function are finely tuned in vivo. As a consequence, their modes of action are complex and remain largely unexplored partly due the lack of dedicated tools. We thus thought to design galectin inhibitors from lactosamine core, functionalized at key C2 and C3' positions by aromatic subsituents to ensure both high affinity and selectivity, and equipped with a spacer which can be modified on demand to further modulate their intrinsic physico-chemical properties...
February 6, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28164491/testing-for-soluble-st2-in-heart-failure-patients-reliability-of-a-point-of-care-method
#16
Damien Gruson, Benjamin Ferracin, Sylvie A Ahn, Michel F Rousseau
BACKGROUND: Our objective was to determine soluble ST2 (sST2) concentrations in heart failure (HF) patients with a point-of-care (POCT) assay. METHODS: sST2 levels were measured in 71 HF patients with both POCT and ELISA methods. The concentrations of sST2 were correlated to HF severity and to some established biomarkers of cardiovascular risk. RESULTS: sST2 levels measured with the ASPECT-PLUS POCT method were significantly correlated with the comparison ELISA assay (r = 0...
January 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28160109/antimetastatic-pectic-polysaccharide-from-decalepis-hamiltonii-galectin-3-inhibition-and-immune-modulation
#17
Sathisha U Venkateshaiah, Mallikarjuna S Eswaraiah, Harish Nayaka M Annaiah, Shylaja M Dharmesh
Melanoma is a malignant neoplasm of major concern because of its high mortality rate and failure of chemotherapy. Previously we have shown that galectin-3, a galactose specific lectin, plays a pivotal role in the initiation of metastasis. It was hypothesized that blocking galectin-3 with galactose rich dietary pectic polymer would inhibit metastasis. The current study analyzes the preventive effect and mode of action of a pectic polymer from Swallow Root (Decalepis hamiltonii) in a preventative study of B16F10 cells lung colonization...
February 3, 2017: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/28157210/modulation-of-macrophage-antitumor-potential-by-apoptotic-lymphoma-cells
#18
Jorine J L P Voss, Catriona A Ford, Sofia Petrova, Lynsey Melville, Margaret Paterson, John D Pound, Pam Holland, Bruno Giotti, Tom C Freeman, Christopher D Gregory
In aggressive non-Hodgkin's lymphoma (NHL), constitutive apoptosis of a proportion of the tumor cell population can promote net tumor growth. This is associated with the accumulation of tumor-associated macrophages (TAMs) that clear apoptotic cells and exhibit pro-oncogenic transcriptional activation profiles characteristic of reparatory, anti-inflammatory and angiogenic programs. Here we consider further the activation status of these TAMs. We compare their transcriptomic profile with that of a range of other macrophage types from various tissues noting especially their expression of classically activated (IFN-γ and LPS) gene clusters - typically antitumor - in addition to their previously described protumor phenotype...
February 3, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28155611/galectins-a-potential-target-for-cardiovascular-therapy
#19
Ghulam Md Ashraf, Asma Perveen, Syed Kashif Zaidi, Ausaf Ahmad, Shazi Shakil, Chelapram Kandy Firoz, Nasimudeen R Jabir, Iftekhar Hassan, Taqi Ahmad Khan, Nagendra Sastry Yarla, Shams Tabrez
Cells constantly adapt to external humoral cues like cytokines and hormones, but practically most cellular behavior is under locally guided control via cell-cell interactions. Galectins (Gals) are one of the most prominent members of the group of molecules involved in this intercellular signaling. They are the family of β-galactoside specific lectins and consist of 15 different types, each with a specific function. They play crucial role in the immune system, inflammation, wound healing and carcinogenesis...
February 1, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28152393/molecular-cloning-characterization-and-expression-analysis-of-tim-3-and-galectin-9-in-the-woodchuck-model
#20
Yanan Liu, Junzhong Wang, Lu Wang, Baoju Wang, Shangqing Yang, Qin Wang, Jinzhuo Luo, Xuemei Feng, Xuecheng Yang, Yinping Lu, Michael Roggendorf, Mengji Lu, Dongliang Yang, Jia Liu
In recent years, a critical role for T cell immunoglobulin mucin domain 3 (Tim-3) and its ligand Galectin-9 (Gal-9) has emerged in infectious disease, autoimmunity and cancer. Manipulating this immune checkpoint may have immunotherapeutic potential and could represent an alternative approach for improving immune responses to viral infections and cancer. The woodchuck (Marmot monax) infected by woodchuck hepatitis virus (WHV) represents an informative animal model to study HBV infection and HCC. In the current study, the cDNA sequences of woodchuck Tim-3 and Gal-9 were cloned, sequenced and characterized...
March 2017: Molecular Immunology
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