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https://www.readbyqxmd.com/read/29142050/collectin-11-promotes-the-development-of-renal-tubulointerstitial-fibrosis
#1
Weiju Wu, Chengfei Liu, Conrad A Farrar, Liang Ma, Xia Dong, Steven H Sacks, Ke Li, Wuding Zhou
Collectin-11 is a recently described soluble C-type lectin, a pattern recognition molecule of the innate immune system that has distinct roles in host defense, embryonic development, and acute inflammation. However, little is known regarding the role of collectin-11 in tissue fibrosis. Here, we investigated collectin-11 in the context of renal ischemia-reperfusion injury. Compared with wild-type littermate controls, Collec11 deficient (CL-11(-/-) ) mice had significantly reduced renal functional impairment, tubular injury, renal leukocyte infiltration, renal tissue inflammation/fibrogenesis, and collagen deposition in the kidneys after renal ischemia-reperfusion injury...
November 15, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29096093/long-term-exposure-to-cadmium-pathological-effects-on-kidney-tubules-cells-in-sparus-aurata-juveniles
#2
Bice Avallone, Raimondo Cerciello, Patrizia Cretì, Carmela Pizzoleo, Rosaria Scudiero, Monica Tizzano, Raffaele Panzuto, Palma Simoniello, Maria Rosa Montinari, Chiara M Motta
The effects of an exposure to cadmium chloride 0.47μM for 150days were studied in kidneys of juveniles Sparus aurata by a multidisciplinary approach so to correlate uptake and detoxification potential to changes in brush border and glycocalyx sugar composition. Results demonstrated that cadmium concentration in kidney significantly increased from day 30 reaching a plateau on day 120 while metallothioneins reached a peak on day 90 and by day 120 were already decreasing to control values. Cytological damage was extensive on day 90, clearly detectable at both structural and ultrastructural levels, in tubular cells and brush-border...
October 28, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/29089413/transcriptomes-of-major-renal-collecting-duct-cell-types-in-mouse-identified-by-single-cell-rna-seq
#3
Lihe Chen, Jae Wook Lee, Chung-Lin Chou, Anil V Nair, Maria A Battistone, Teodor G Păunescu, Maria Merkulova, Sylvie Breton, Jill W Verlander, Susan M Wall, Dennis Brown, Maurice B Burg, Mark A Knepper
Prior RNA sequencing (RNA-seq) studies have identified complete transcriptomes for most renal epithelial cell types. The exceptions are the cell types that make up the renal collecting duct, namely intercalated cells (ICs) and principal cells (PCs), which account for only a small fraction of the kidney mass, but play critical physiological roles in the regulation of blood pressure, extracellular fluid volume, and extracellular fluid composition. To enrich these cell types, we used FACS that employed well-established lectin cell surface markers for PCs and type B ICs, as well as a newly identified cell surface marker for type A ICs, c-Kit...
October 31, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29084277/systemic-effects-in-na%C3%A3-ve-mice-injected-with-immunomodulatory-lectin-artinm
#4
Patrícia Kellen Martins Oliveira Brito, Thiago Eleutério Gonçalves, Fabrício Freitas Fernandes, Camila Botelho Miguel, Wellington Francisco Rodrigues, Javier Emílio Lazo Chica, Maria Cristina Roque-Barreira, Thiago Aparecido da Silva
Toll-like receptors (TLR) contain N-glycans, which are important glycotargets for plant lectins, to induce immunomodulation. The lectin ArtinM obtained from Artocarpus heterophyllus interacts with TLR2 N-glycans to stimulate IL-12 production by antigen-presenting cells and to drive the immune response toward the Th1 axis, conferring resistance against intracellular pathogens. This immunomodulatory effect was demonstrated by subcutaneously injecting (s.c.) ArtinM (0.5 μg) in infected mice. In this study, we evaluated the systemic implications of ArtinM administration in naïve BALB/c mice...
2017: PloS One
https://www.readbyqxmd.com/read/29071557/collectins-in-urinary-tract-and-kidney-diseases
#5
REVIEW
Yongfang Qin, Jingjing Liu, Jiao Liu, Fengqi Hu
The innate immune system serves as the frontline defense against invading pathogens and initiates an inflammatory response to microorganisms. Collectins are C-type lectins that are structurally characterized by a collagen-like sequence and a carbohydrate recognition domain. Moreover, they are widely expressed throughout the body and are involved in the innate immunity against a variety of pathogens, regulating inflammation, and protecting the lungs from pathogens. Recently, two classical collectins, surfactant protein A (SP-A) and surfactant protein D (SP-D), as well as novel collectin 11, were found present in urinary tract tissues...
October 25, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/29045706/kidney-injury-molecule-1-staining-in-renal-allograft-biopsies-10-days-after-transplantation-is-inversely-correlated-with-functioning-proximal-tubular-epithelial-cells
#6
Jonna R Bank, Pieter van der Pol, Dianne Vreeken, Catherine Monge-Chaubo, Ingeborg M Bajema, Nicole Schlagwein, Daniëlle J van Gijlswijk, Sandra W van der Kooij, Marlies E J Reinders, Johan W de Fijter, Cees van Kooten
Background: Kidney injury molecule-1 (KIM-1) and neutrophil gelatinase-associated lipocalin (NGAL) are promising biomarkers for monitoring delayed graft function (DGF) after kidney transplantation. Here we investigated localization and distribution of KIM-1 and NGAL staining in renal allograft biopsies and studied their association with histological features, functional DGF (fDGF) and the tubular function slope (TFS), a functioning proximal tubular epithelial cell (PTEC) marker. Methods: Day 10 protocol biopsies of 64 donation after circulatory death recipients were stained for KIM-1 and NGAL and the positive area was quantified using ImageJ software...
October 16, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28875951/effects-of-cyclosporine-a-on-the-development-of-metanephros-in-the-pregnant-balb-c-mice
#7
Yu-Jie Liao, Rong-Shuang Huang, Wei-Jing Lai, Fang Liu, Liang Ma, Yuan-Sheng Xie, Stephen Salerno, Yi Li, Ping Fu
Background: Cyclosporine A (CsA) is a commonly used clinical immunosuppressant. However, CsA exposure in rabbits during the gestation period was shown to cause a postnatal decrease in the number of nephrons, with the effects remaining unknown. In this study, we aimed to explore the effects of CsA on metanephros development in the pregnant BALB/c mice. Methods: Pregnant mice were randomly divided into two groups, and CsA (10 mg·kg(-1)·d(-1)) was subcutaneously injected from gestation day 10...
September 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28869534/tongue-sole-cd209-a-pattern-recognition-receptor-that-binds-a-broad-range-of-microbes-and-promotes-phagocytosis
#8
Shuai Jiang, Li Sun
CD209 is an immune receptor that plays an important role in the initiation of innate immunity and activation of adaptive immunity in mammals. However, much less is known about the immunological function of CD209 in lower vertebrates. In the present study, we examined the immune effect of a CD209 homologue (CsCD209) from the teleost fish tongue sole Cynoglossus semilaevis. CsCD209 possesses a lectin domain that shares high levels of similarity with the lectin domains of human and mouse CD209. CsCD209 expression was most abundant in kidney and blood and was significantly upregulated during bacterial infection...
September 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28867209/identification-and-molecular-profiling-of-dc-sign-like-from-big-belly-seahorse-hippocampus-abdominalis-inferring-its-potential-relevancy-in-host-immunity
#9
Eunyoung Jo, Don Anushka Sandaruwan Elvitigala, Qiang Wan, Minyoung Oh, Chulhong Oh, Jehee Lee
Dendritic-cell-specific ICAM-3-grabbing non-integrin (DC-SIGN) is a C-type lectin that functions as a pattern recognition receptor by recognizing pathogen-associated molecular patterns (PAMPs). It is also involved in various events of the dendritic cell (DC) life cycle, such as DC migration, antigen capture and presentation, and T cell priming. In this study, a DC-SIGN-like gene from the big belly seahorse Hippocampus abdominalis (designated as ShDCS-like) was identified and molecularly characterized. The putative, complete ORF was found to be 1368 bp in length, encoding a protein of 462 amino acids with a molecular mass of 52...
December 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28858976/galectin-3-pharmacological-inhibition-attenuates-early-renal-damage-in-spontaneously-hypertensive-rats
#10
Ernesto Martínez-Martínez, Jaime Ibarrola, Amaya Fernández-Celis, Laurent Calvier, Celine Leroy, Victoria Cachofeiro, Patrick Rossignol, Natalia López-Andrés
BACKGROUND: The pharmacological blockade of galectin-3 (Gal-3), a β-galactoside-binding lectin, reduces renal impairment in acute kidney injury, hyperaldosteronism or nephropathy. We herein investigated the effects of pharmacological Gal-3 inhibition by modified citrus pectin (MCP) in renal damage in spontaneously hypertensive rats (SHRs). METHODS AND RESULTS: Gal-3 inhibition did not modify blood pressure levels in 30-week-old SHR. Kidney weight was higher in SHR, with no effect of MCP treatment (100 mg/kg/day in the drinking water)...
August 30, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28751823/global-autorecognition-and-activation-of-complement-by-mannan-binding-lectin-in-a-mouse-model-of-type-1-diabetes
#11
Esben Axelgaard, Jakob Appel Østergaard, Saranda Haxha, Steffen Thiel, Troels Krarup Hansen
Increasing evidence links mannan-binding lectin (MBL) to late vascular complications of diabetes. MBL is a complement-activating pattern recognition molecule of the innate immune system that can mediate an inflammation response through activation of the lectin pathway. In two recent animal studies, we have shown that autoreactivity of MBL is increased in the kidney in diabetic nephropathy. We hypothesize that long-term exposure to uncontrolled high blood glucose in diabetes may mediate formation of neoepitopes in several tissues and that MBL is able to recognize these structures and thus activate the lectin pathway...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28743623/novel-mannose-binding-natterin-like-protein-in-the-skin-mucus-of-atlantic-cod-gadus-morhua
#12
Binoy Rajan, Deepti M Patel, Yoichiro Kitani, Kiron Viswanath, Monica F Brinchmann
This study presents the first report of purification of natterin-like protein (Nlp) in a non-venomous fish. The peptide identities of purified cod Nlp were confirmed through LC-MSMS and matched to a cod expressed sequence tag (EST). A partial cod nlp nucleotide sequence was amplified and sequenced based on this EST. Multiple sequence alignment of cod Nlp showed considerable homology with other teleost Nlps and the presence of an N-terminal jacalin-like lectin domain coupled with a C-terminal toxin domain. nlp expression was higher in skin, head kidney, liver and spleen than in other tissues studied...
September 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28611987/complement-in-kidney-transplantation
#13
REVIEW
Marek Cernoch, Ondrej Viklicky
The complement system is considered to be an important part of innate immune system with a significant role in inflammation processes. The activation can occur through classical, alternative, or lectin pathway, resulting in the creation of anaphylatoxins C3a and C5a, possessing a vast spectrum of immune functions, and the assembly of terminal complement cascade, capable of direct cell lysis. The activation processes are tightly regulated; inappropriate activation of the complement cascade plays a significant role in many renal diseases including organ transplantation...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28602737/identification-and-characterization-of-a-mannose-binding-lectin-from-nile-tilapia-oreochromis-niloticus
#14
Liangliang Mu, Xiaoxue Yin, Jing Liu, Liting Wu, Xia Bian, Yuhong Wang, Jianmin Ye
Mannose-binding lectin (MBL) is a pattern recognition protein that plays an important role in innate immunity capable of activating the lectin pathway of the complement system. In this study, a MBL homologue (OnMBL) was identified from Nile tilapia (Oreochromis niloticus) and characterized at expression and agglutination functional levels. The open reading frame of OnMBL is 687 bp of nucleotide sequence encoding polypeptides of 228 amino acids. The deduced amino acid sequence is highly homology to teleost and similar to mammalian MBL, containing a canonical collagen-like region, a carbohydrate recognition domain and a neck region...
August 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28602683/a-c-type-lectin-nattectin-like-protein-cantc-in-qihe-crucian-carp-carassius-auratus-binding-ability-with-lps-pgn-and-various-bacteria-and-agglutinating-activity-against-bacteria
#15
Li Wang, Jie Zhang, Xianghui Kong, Xianliang Zhao, Chao Pei, Li Li
C-type lectins (CTLs), as the members of pattern-recognition receptors (PRRs), play the significant roles in innate immunity through binding with pathogen-associated molecular patterns (PAMPs) on the surface of microbe. In the present study, a novel CTL, Nattectin-like protein (named as CaNTC), was investigated in Qihe crucian carp Carassius auratus. The full-length cDNA of CaNTC was composed of 776 bp, with a 152 bp 5'-untranslated region (UTR), a 492 bp ORF encoding a 163-aa protein, and a 132 bp 3'-UTR with a polyadenylation signal sequence AATAAA and a poly(A) tail...
August 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28536887/ficolin-2-gene-rs7851696-polymorphism-is-associated-with-delayed-graft-function-and-acute-rejection-in-kidney-allograft-recipients
#16
Ewa Dabrowska-Zamojcin, Michal Czerewaty, Damian Malinowski, Maciej Tarnowski, Sylwia Słuczanowska-Głabowska, Leszek Domanski, Krzysztof Safranow, Andrzej Pawlik
Ficolin-2 is an activator of the complement system that acts via the lectin pathway. Complement activation plays a substantial role in the renal injury inherent to kidney transplantation. In this study, we examined the associations between ficolin-2 gene polymorphisms in exon 8 and kidney allograft function. This study comprised 270 Caucasian deceased-donor renal transplant recipients. The following parameters were recorded in each case: delayed graft function (DGF), acute rejection (AR), and chronic allograft dysfunction...
May 23, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28495395/study-of-the-variables-associated-with-local-complement-activation-in-iga-nephropathy
#17
Alfons Segarra-Medrano, Clara Carnicer-Caceres, Naiara Valtierra-Carmeno, Irene Agraz-Pamplona, Natalia Ramos-Terrades, Elías Jatem Escalante, Elena Ostos-Roldan
OBJECTIVES: 1. To identify the variables that are associated with urinary levels of properdin, MBL, C4d, and C5b-9 in patients with idiopathic IgA nephropathy. 2. To analyse whether urinary levels of MBL and/or C4d are useful for identifying the presence of mesangial deposits of C4d/MBL. PATIENTS AND METHOD: A total of 96 patients with IgA nephropathy were studied. Demographic, clinical and biochemical variables were recorded at the time of diagnosis. Renal lesions were quantified using the Oxford classification...
May 8, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28469279/spindle-pole-cohesion-requires-glycosylation-mediated-localization-of-numa
#18
Jérémy Magescas, Lucie Sengmanivong, Amandine Viau, Adeline Mayeux, Tien Dang, Martine Burtin, Ulf J Nilsson, Hakon Leffler, Françoise Poirier, Fabiola Terzi, Delphine Delacour
Glycosylation is critical for the regulation of several cellular processes. One glycosylation pathway, the unusual O-linked β-N-acetylglucosamine glycosylation (O-GlcNAcylation) has been shown to be required for proper mitosis, likely through a subset of proteins that are O-GlcNAcylated during metaphase. As lectins bind glycosylated proteins, we asked if specific lectins interact with mitotic O-GlcNAcylated proteins during metaphase to ensure correct cell division. Galectin-3, a small soluble lectin of the Galectin family, is an excellent candidate, as it has been previously described as a transient centrosomal component in interphase and mitotic epithelial cells...
May 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28407128/the-bittersweet-taste-of-tubulo-interstitial-glycans
#19
REVIEW
Ditmer T Talsma, Mohamed R Daha, Jacob van den Born
Recently, interesting work was published by Farrar et al. [1] showing the interaction of fucosylated glycoproteins on stressed tubular epithelial cells with collectin-11 leading to complement activation via the lectin route of complement. This elegant work stimulated us to evaluate the dark side (bittersweet taste) of tubulo-interstitial glycans in kidney tissue damage. As will be discussed, glycans not only initiate tubular complement activation but also orchestrate tubulo-interstitial leucocyte recruitment and growth factor responses...
April 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28401167/glycopatterns-of-urinary-protein-as-new-potential-diagnosis-indicators-for-diabetic-nephropathy
#20
Hanyu Zhu, Moyan Liu, Hanjie Yu, Xiawei Liu, Yaogang Zhong, Jian Shu, Xinle Fu, Guangyan Cai, Xiangmei Chen, Wenjia Geng, Xiaoli Yang, Minghui Wu, Zheng Li, Dong Zhang
Diabetic nephropathy is a major cause of chronic kidney disease and end-stage kidney disease. However, so little is known about alterations of the glycopatterns in urine with the development of diabetic nephropathy. Presently, we interrogated glycopatterns in urine specimens using a lectin microarray. The results showed that expression levels of Siaα2-6Gal/GalNAc recognized by SNA exhibited significantly increased tendency with the development of diabetic nephropathy; moreover, SNA blotting indicated glycoproteins (90 kDa, 70 kDa, and 40 kDa) in urine may contribute to this alteration...
2017: Journal of Diabetes Research
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