Read by QxMD icon Read

Mannose binding lectin

Jin Won Huh, Kyuyoung Song, Hwa Jung Kim, Jung Sun Yum, Sang Bum Hong, Chae Man Lim, Younsuck Koh
BACKGROUND: Mannose-binding lectin (MBL) deficiency leads to increased susceptibility to infection. We investigated whether serial changes in MBL levels are associated with the prognosis of patients diagnosed with septic shock, and correlated with cytokine levels. METHODS: We enrolled 131 patients with septic shock in the study. We analyzed the serum samples for MBL and cytokine levels at baseline and 7 days later. Samples on day 7 were available in 73 patients...
March 7, 2018: Tuberculosis and Respiratory Diseases
Yu Liu, Peng Zhang, Weilin Wang, Miren Dong, Min Wang, Changhao Gong, Zhihao Jia, Zhaoqun Liu, Anguo Zhang, Lingling Wang, Linsheng Song
DM9 is a novel protein domain with unknown function originally discovered in Drosophila melanogaster. Recently, a protein harboring DM9 repeats was identified as mannose-specific lectin (CgCGL1, renamed as CgDM9CP-1) from the Pacific oyster Crassostrea gigas. In the present study, another DM9 containing protein was identified from oyster C. gigas (designated as CgDM9CP-2). The open reading frame of CgDM9CP-2 gene was of 432 bp, encoding a polypeptide of 143 amino acids with two tandem DM9 repeats. The deduced amino acid sequence of CgDM9CP-2 shared 60...
March 5, 2018: Developmental and Comparative Immunology
Padmavathi A V Thangella, Srinivas N B S Pasumarti, Raghu Pullakhandam, Bhanuprakash Reddy Geereddy, Manohar Rao Daggu
Drought is a major constraint to the productivity of many crops affecting various physiological and biochemical processes. Seventy percent of the peanuts are grown in semiarid tropics that are frequently prone to drought stress. So, we analyzed its effect in 4 cultivars of peanut, with different degrees of drought tolerance, under 10 and 20 days of water stress using two-dimensional gel electrophoresis and mass spectrometry. A total of 189 differentially expressed protein spots were identified in the leaf proteome of all the 4 cultivars using PD Quest Basic software; 74 in ICGV 91114, 41 in ICGS 76, 44 in J 11 and 30 in JL 24...
March 2018: 3 Biotech
Tilman E Klassert, Surabhi Goyal, Magdalena Stock, Dominik Driesch, Abid Hussain, Luis Carlos Berrocal-Almanza, Rajashekar Myakala, Gaddam Sumanlatha, Vijayalakshmi Valluri, Niyaz Ahmed, Ralf R Schumann, Carlos Flores, Hortense Slevogt
Tuberculosis (TB) is a multifactorial disease governed by bacterial, host and environmental factors. On the host side, growing evidence shows the crucial role that genetic variants play in the susceptibility to Mycobacterium tuberculosis (Mtb) infection. Such polymorphisms have been described in genes encoding for different cytokines and pattern recognition receptors (PRR), including numerous Toll-like receptors (TLRs). In recent years, several members of the C-type lectin receptors (CTLRs) have been identified as key PRRs in TB pathogenesis...
2018: Frontiers in Immunology
Therese Adrian, Mads Hornum, Frank Eriksson, Jesper M Hansen, Katrine Pilely, Peter Garred, Bo Feldt-Rasmussen
Background: Patients with end-stage renal disease (ESRD) have high morbidity and mortality rates, with cardiovascular diseases and infections being the major causes of death. Mannose-binding lectin (MBL) has been suggested to play a protective role in this regard. The aim of this study was to investigate a possible clinical association of MBL genotypes (MBL2) with outcome among patients on dialysis or with a functioning graft. Methods: A total of 98 patients with ESRD accepted for living-donor renal transplantation or on the waiting list for transplantation were included and prospectively followed for an average of 9 years (range 7...
March 3, 2018: Nephrology, Dialysis, Transplantation
Bo Min Kim, H C Therese Lotter-Stark, Edward P Rybicki, Rachel K Chikwamba, Kenneth E Palmer
Griffithsin (GRFT) is an antiviral lectin, originally derived from a red alga, which is currently being investigated as a topical microbicide to prevent transmission of human immunodeficiency virus (HIV). Targeting GRFT to the apoplast for production in Nicotiana benthamiana resulted in necrotic symptoms associated with a hypersensitive response (HR)-like cell death, accompanied by H2 O2 generation and increased PR1 expression. Mannose-binding lectins Surfactant protein D (SP-D), cyanovirin-N (CV-N) and human mannose-binding lectin (hMBL) also induce salicylic acid (SA) dependent HR-like cell death in N...
March 6, 2018: Plant Biotechnology Journal
Lu Zhao, Mengchen Shi, Lina Zhou, Hengchang Sun, Xiaona Zhang, Lei He, Zeli Tang, Caiqin Wang, Yinjuan Wu, Tingjin Chen, Mei Shang, Xinyi Zhou, Zhipeng Lin, Xuerong Li, Xinbing Yu, Yan Huang
BACKGROUND: Clonorchis sinensis (C. sinensis) is the most widespread human liver fluke in East Asia including China and Korea. Clonorchiasis as a neglected tropical zoonosis, leads to serious economic and public health burden in China. There are considerable evidences for an etiological relation between chronic clonorchiasis and liver fibrosis in human beings. Liver fibrosis is a highly conserved and over-protected response to hepatic tissue injury. Immune cells including CD4+ T cell as well as dendritic cell (DC), and pro-fibrogenic cytokines like interleukin 4 (IL-4), IL-13 have been identified as vital manipulators in liver fibrogenesis...
March 5, 2018: PLoS Neglected Tropical Diseases
Blessan Santhosh George, S Silambarasan, K Senthil, John Prasanth Jacob, Modhumita Ghosh Dasgupta
Lectins are carbohydrate-binding proteins with wide array of functions including plant defense against pathogens and insect pests. In the present study, a putative mannose-binding lectin (WsMBP1) of 1124 bp was isolated from leaves of Withania somnifera. The gene was expressed in E. coli, and the recombinant WsMBP1 with a predicted molecular weight of 31 kDa was tested for its insecticidal properties against Hyblaea puera (Lepidoptera: Hyblaeidae) and Probergrothius sanguinolens (Hemiptera: Pyrrhocoridae)...
February 28, 2018: Molecular Biotechnology
Taijie Li, Cuiju Mo, Xue Qin, Shan Li, Yinkun Liu, Zhiming Liu
BACKGROUND: Recently, studies have reported that protein glycosylation plays an important role in the occurrence and development of cancer. Gastric cancer is a common cancer with high morbidity and mortality owing to most gastric cancers are discovered only at an advanced stage. Here, we aim to discover novel specific serum glycanbased biomarkers for gastric cancer. METHODS: A lectin microarray with 50 kinds of tumor-associated lectin was used to detect the glycan profiles of serum samples between early gastric cancer and healthy controls...
January 1, 2018: Clinical Laboratory
Xiaoyuan Wei, Limin Wang, Wanwei Sun, Ming Zhang, Hongyu Ma, Yueling Zhang, Xinxu Zhang, Shengkang Li
As pattern recognition receptors, C-type lectins (CTLs) play important roles in immune system of crustaceans through identifying and binding to the conservative pathogen-associated molecular patterns (PAMPs) on pathogen surfaces. In this study, a new CTL, SpCTL-B, was identified from the hemocytes of mud crab Scylla paramamosain. The full-length of SpCTL-B cDNA was 1278 bp with an open reading frame (ORF) of 348 bp. The predicted SpCTL-B protein contains a single carbohydrate-recognition domain (CRD). SpCTL-B transcripts were distributed in all examined tissues with the highest levels in hepatopancreas...
February 21, 2018: Developmental and Comparative Immunology
Katalin Paréj, Andrea Kocsis, Csenge Enyingi, Ráhel Dani, Gábor Oroszlán, László Beinrohr, József Dobó, Péter Závodszky, Gábor Pál, Péter Gál
The complement system is a sophisticated network of proteases. In this article, we describe an unexpected link between two linear activation routes of the complement system: the lectin pathway (LP) and the alternative pathway (AP). Mannose-lectin binding-associated serine protease (MASP)-1 is known to be the initiator protease of the LP. Using a specific and potent inhibitor of MASP-1, SGMI-1, as well as other MASP-1 inhibitors with different mechanisms of action, we demonstrated that, in addition to its functions in the LP, MASP-1 is essential for bacterial LPS-induced AP activation, whereas it has little effect on zymosan-induced AP activation...
February 23, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
Ling-Ling Zhao, Kaimin Hui, Yue Wang, Hui Wang, Qian Ren, Xin-Cang Li
Galactoside-binding lectins, also known as galectins, play crucial roles in innate immune response in invertebrates. In this study, three cDNA sequences from Hyriopsis cumingii were identified and collectively called HcGalec genes. Each of the three deduced HcGalec proteins contained a galactose-binding lectin domain or a GLECT domain. All the three HcGalec genes are mainly present in the hepatopancreas and gills, and their expression is induced by bacterial challenge. Three recombinant HcGalec proteins can bind and agglutinate (Ca2+ -dependent) various microorganisms, including Gram-positive and Gram-negative bacteria...
February 20, 2018: Fish & Shellfish Immunology
Cecilia Hagert, Outi Sareila, Tiina Kelkka, Sirpa Jalkanen, Rikard Holmdahl
The injection of mannan into mice can result in the development of psoriasis (Ps) and psoriatic arthritis (PsA), whereas co-injection with antibodies toward collagen type II leads to a chronic rheumatoid-like arthritis. The critical event in all these diseases is mannan-mediated activation of macrophages, causing more severe disease if the macrophages are deficient in neutrophil cytosolic factor 1 (Ncf1), i.e., lack the capacity to make a reactive oxygen species (ROS) burst. In this study, we investigated the role of one of the receptors binding mannan; the macrophage mannose receptor (MR, CD206)...
2018: Frontiers in Immunology
Daniel Seung Kim, Yatong K Li, Jerry H Kim, Curtis S Bergquist, Marsha Gerdes, Judy C Bernbaum, Nancy Burnham, Donna M McDonald-McGinn, Elaine H Zackai, Susan C Nicolson, Thomas L Spray, Deborah A Nickerson, Hakon Hakonarson, Gail P Jarvik, J William Gaynor
OBJECTIVES: The MBL2 gene is the major genetic determinant of mannose-binding lectin (MBL)-an acute phase reactant. Low MBL levels have been associated with adverse outcomes in preterm infants. The MBL2Gly54Asp missense variant causes autosomal dominant MBL deficiency. We tested the hypothesis that MBL2Gly54Asp is associated with worse neurodevelopmental outcomes after cardiac surgery in neonates. METHODS: This is an analysis of a previously described cohort of patients with nonsyndromic congenital heart disease who underwent cardiac surgery with cardiopulmonary bypass before age 6 months (n = 295)...
March 2018: Journal of Thoracic and Cardiovascular Surgery
Ana E Gutiérrez-Cabrera, Wesley F Zandberg, Edgar Zenteno, Mario H Rodríguez, Bertha Espinoza, Carl Lowenberger
Trypanosoma cruzi, the causative agent of Chagas disease, interacts with molecules in the midgut of its insect vector to multiply and reach the infective stage. Many studies suggest that the parasite binds to midgut-specific glycans. We identified several glycoproteins expressed in the intestine and perimicrovillar membrane (PMM) of Triatoma (Meccus) pallidipennis under different feeding conditions. In order to assess changes in protein-linked glycans, we performed lectin and immunoblot analyses on glycoprotein extracts from these intestinal tissues using well-characterized lectins, and an antibody, which collectively recognize a wide range of different glycans epitopes...
February 15, 2018: Insect Science
Emmanuelle Pales Espinosa, Bassem Allam
Prey selection governs species interactions and regulates physiological energetics of individuals and populations. Suspension-feeding bivalves represent key species in coastal and estuarine systems for their ecological and economic value. These animals are able to sort and selectively ingest nutritious microalgae from dilute and composite mixtures of particulate matter. This aptitude was suggested to be mediated by interactions between carbohydrates associated with the surface of microalgae and C-type lectins present in mucus covering the feeding organs although a direct, unequivocal, role of lectins in food sorting in bivalves remains elusive...
February 14, 2018: Journal of Experimental Biology
Denise Maria do Nascimento Costa, Lucila Maria Valente, Gisele Vajgel Fernandes, Paula Sandrin-Garcia, Heidi Lacerda Alves da Cruz, Sergio Crovella, Antônio Henrique Santana Cavalcante, Maria Alina Gomes de Mattos Cavalcante, Camila Barbosa Lyra de Oliveira, Carolina de Andrade Jordão de Vasconcelos, Emanuel Sávio Cavalcante Sarinho
BACKGROUND: Idiopathic membranous nephropathy (IMN) has been linked to the lectin pathway, IgG4 and genetic susceptibility. We investigated the frequency of mannose-binding lectin2 (MBL2) gene polymorphisms and the serum ratio of IgG4 in patients with membranous nephropathy (MN). METHODS: Polymorphisms in the exon 1 of the MBL2 gene (codons 52, 54, and 57) and single base polymorphisms at positions -550 (HL) and -221 (XY) in the promoter region were evaluated in 60 patients compared to a control group (CG) of 101 blood donors...
February 13, 2018: Nephron
William W Siljan, Jan C Holter, Ståle H Nymo, Einar Husebye, Thor Ueland, Lillemor Skattum, Vidar Bosnes, Peter Garred, Stig S Frøland, Tom E Mollnes, Pål Aukrust, Lars Heggelund
Background: Disease severity and outcome in community-acquired pneumonia (CAP) depend on the host and on the challenge of the causal microorganism(s). We measured levels of immunoglobulins (Igs) and complement in 257 hospitalized adults with CAP and examined the association of low levels of Igs or complement to microbial etiology, disease severity, and short-term and long-term outcome. Methods: Serum Igs were analyzed in blood samples obtained at admission and at 6 weeks postdischarge if admission levels were low...
February 2018: Open Forum Infectious Diseases
Julie Brogaard Larsen, Anne Troldborg, Thomas Decker Christensen, Christine Lodberg Hvas, Steffen Thiel, Anne-Mette Hvas
BACKGROUND: Lectin pathway proteases activate coagulation and may theoretically play a role in the increased thrombosis risk in cancer, which is especially high during surgery. AIMS: To investigate lectin pathway proteins during lung cancer surgery, the influence of low molecular weight heparin (LMWH) on lectin pathway proteins, and correlations between lectin pathway proteins and coagulation. METHODS: Fifty lung cancer patients undergoing video-assisted thoracoscopic surgery lobectomy were randomised to LMWH, n = 26, or no anticoagulant (control), n = 24...
January 30, 2018: Thrombosis Research
Edward J Goetzl, Janice B Schwartz, Erin L Abner, Gregory A Jicha, Dimitrios Kapogiannis
OBJECTIVE: Astrocytes fulfill neuronal trophic roles normally, but are transformed in Alzheimer's disease (AD) into A1-type reactive astrocytes that may destroy neurons through unknown mechanisms. METHODS: To investigate astrocyte inflammatory mechanisms, astrocyte-derived exosomes (ADEs) were isolated immunochemically from plasmas of AD patients and matched controls for ELISA quantification of complement proteins. RESULTS: ADE levels of C1q, C4b, C3d, factor B, factor D, Bb, C3b and C5b-C9 terminal complement complex (TCC), but not mannose-binding lectin (MBL), normalized by the CD81 exosome marker were significantly higher for AD patients (n=28) than age- and gender-matched controls (all p<0...
February 6, 2018: Annals of Neurology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"