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Hyaluronan

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https://www.readbyqxmd.com/read/28081210/mutations-in-hyal2-encoding-hyaluronidase-2-cause-a-syndrome-of-orofacial-clefting-and-cor-triatriatum-sinister-in-humans-and-mice
#1
Martina M A Muggenthaler, Biswajit Chowdhury, S Naimul Hasan, Harold E Cross, Brian Mark, Gaurav V Harlalka, Michael A Patton, Miho Ishida, Elijah R Behr, Sanjay Sharma, Kenneth Zahka, Eissa Faqeih, Brian Blakley, Mike Jackson, Melissa Lees, Vernon Dolinsky, Leroy Cross, Philip Stanier, Claire Salter, Emma L Baple, Fowzan S Alkuraya, Andrew H Crosby, Barbara Triggs-Raine, Barry A Chioza
Orofacial clefting is amongst the most common of birth defects, with both genetic and environmental components. Although numerous studies have been undertaken to investigate the complexities of the genetic etiology of this heterogeneous condition, this factor remains incompletely understood. Here, we describe mutations in the HYAL2 gene as a cause of syndromic orofacial clefting. HYAL2, encoding hyaluronidase 2, degrades extracellular hyaluronan, a critical component of the developing heart and palatal shelf matrix...
January 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28077237/interplay-of-extracellular-matrix-and-leukocytes-in-lung-inflammation
#2
REVIEW
Thomas N Wight, Charles W Frevert, Jason S Debley, Stephen R Reeves, William C Parks, Steven F Ziegler
During inflammation, leukocytes influx into lung compartments and interact with extracellular matrix (ECM). Two ECM components, versican and hyaluronan, increase in a range of lung diseases. The interaction of leukocytes with these ECM components controls leukocyte retention and accumulation, proliferation, migration, differentiation, and activation as part of the inflammatory phase of lung disease. In addition, bronchial epithelial cells from asthmatic children co-cultured with human lung fibroblasts generate an ECM that is adherent for monocytes/macrophages...
December 23, 2016: Cellular Immunology
https://www.readbyqxmd.com/read/28069922/mechanisms-of-nmda-receptor-and-voltage-gated-l-type-calcium-channel-dependent-hippocampal-ltp-critically-rely-on-proteolysis-that-is-mediated-by-distinct-metalloproteinases
#3
Grzegorz Wiera, Daria Nowak, Inge Van Hove, Piotr Dziegiel, Lieve Moons, Jerzy W Mozrzymas
: Long-term potentiation (LTP) is widely perceived as a memory substrate and in the hippocampal CA3-CA1 pathway, distinct forms of LTP depend on N-methyl-D-aspartate (NMDA) receptors (nmdaLTP) or L-type voltage-gated calcium channels (vdccLTP). Long-term potentiation is also known to be effectively regulated by extracellular proteolysis that is mediated by various enzymes. Herein, we investigated whether in mice hippocampal slices these distinct forms of LTP are specifically regulated by different metalloproteinases (MMPs)...
January 9, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28053085/inhibition-of-mammalian-glycoprotein-ykl-40-identification-of-the-physiological-ligand
#4
Abhishek A Kognole, Christina M Payne
YKL-40 is a mammalian glycoprotein associated with progression, severity, and prognosis of chronic inflammatory diseases and a multitude of cancers. Despite this well-documented association, identification of the lectin's physiological ligand, and accordingly, biological function, has proven experimentally difficult. YKL-40 has been shown to bind chito-oligosaccharides; however, the production of chitin by the human body has not yet been documented. Possible alternative ligands include proteoglycans, polysaccharides, and fibers like collagen, all of which makeup the extracellular matrix...
January 4, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28043889/emt-induced-by-egf-and-wounding-activates-hyaluronan-synthesis-machinery-and-ev-shedding-in-rat-primary-mesothelial-cells
#5
Ville Koistinen, Kai Härkönen, Riikka Kärnä, Uma Thanigai Arasu, Sanna Oikari, Kirsi Rilla
The mesothelium is a membrane that forms the lining of several body cavities. It is composed of simple squamous mesothelial cells that secrete a glycosaminoglycan-rich lubricating fluid between inner organs. One of the most abundant glycosaminoglycans of those fluids is hyaluronan, which is synthesized on a plasma membrane and especially on apical filopodia of cultured cells. Our recent study showed that similar hyaluronan-rich protrusions are found in mesothelial lining in vivo, which suggests that hyaluronan synthesis in plasma membrane protrusions is a general process...
December 30, 2016: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/28042324/mapping-sentinel-lymph-node-metastasis-by-dual-probe-optical-imaging
#6
Xiangyu Yang, Zhe Wang, Fuwu Zhang, Guizhi Zhu, Jibin Song, Gao-Jun Teng, Gang Niu, Xiaoyuan Chen
Purpose: Sentinel lymph node biopsy (SLNB) has emerged as the preferred standard procedure in patients with breast cancer, melanoma and other types of cancer. Herein, we developed a method to intra-operatively map SLNs and differentiate tumor metastases within SLNs at the same time, with the aim to provide more accurate and real-time intraoperative guidance. Experimental Design: Hyaluronic acid (HA), a ligand of lymphatic vessel endothelial hyaluronan receptor (LYVE)-1, is employed as a SLN mapping agent after being conjugated with a near-infrared fluorophore (Cy5...
2017: Theranostics
https://www.readbyqxmd.com/read/28038750/a-tracheal-scaffold-of-gelatin-chondroitin-sulfate-hyaluronan-polyvinyl-alcohol-with-orientated-porous-structure
#7
Xueping Yu, Guowen Qian, Si Chen, Dong Xu, Xiujuan Zhao, Chang Du
Scaffold of gelatin-chondroitin sulfate-hyaluronan-polyvinyl alcohol (GCH-PVA) with orientated microtubule structure and good hydrophilicity was fabricated by unidirectional freeze-drying method mimicking the composition and structure of tracheal cartilage extracellular matrix. PVA was incorporated to improve flexibility and viscoelasticity of GCH scaffold. All wet scaffolds showed similar compressive elastic modulus with native cartilage. GCH-PVA scaffolds showed high relative remaining stress during relaxation indicating good mechanical stability...
March 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28026853/lyve1-and-prox1-in-the-reconstruction-of-hepatic-sinusoids-after-partial-hepatectomy-in-mice
#8
Fanwei Meng
Revascularization is crucial to liver regeneration after liver injury, but the process remains unclear. This study investigated changes in the levels and distribution of lymphatic vessel endothelial hyaluronan receptor 1 (LYVE1) and prospero homeobox protein 1 (PROX1) in liver tissue sections after partial hepatectomy in mice. Mice were subjected to partial hepatectomy. Control animals were sham-operated. From days 1 through 8, the remaining liver tissues were collected from 8 animals each day. Histology showed that after partial hepatectomy, the remaining liver tissue samples underwent initial degeneration and then hepatocyte proliferation and regeneration...
December 27, 2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28024382/gold-nanoclustered-hyaluronan-nano-assemblies-for-photothermally-maneuvered-photodynamic-tumor-ablation
#9
Hwa Seung Han, Ki Young Choi, Hansang Lee, Minchang Lee, Jae Yoon An, Sol Shin, Seunglee Kwon, Doo Sung Lee, Jae Hyung Park
Optically active nanomaterials have shown great promise as a nanomedicine platform for photothermal or photodynamic cancer therapies. Herein, we report a gold-nanoclustered hyaluronan nanoassembly (GNc-HyNA) for photothermally boosted photodynamic tumor ablation. Unlike other supramolecular gold constructs based on gold nanoparticle building blocks, this system utilizes the nanoassembly of amphiphilic hyaluronan conjugates as a drug carrier for a hydrophobic photodynamic therapy agent verteporfin, a polymeric reducing agent, and an organic nanoscaffold upon which gold can grow...
December 27, 2016: ACS Nano
https://www.readbyqxmd.com/read/28012880/kiaa1199-cemip-hybid-overexpression-predicts-poor-prognosis-in-pancreatic-ductal-adenocarcinoma
#10
Atsuhiro Koga, Norihiro Sato, Shiro Kohi, Kei Yabuki, Xiao-Bo Cheng, Masanori Hisaoka, Keiji Hirata
BACKGROUND: KIAA1199 (also known as CEMIP or HYBID), a newly identified protein involved in hyaluronan degradation, has been suggested to play a critical role in cancer progression. The aim of this study was to investigate the expression and functional significance of KIAA1199 in pancreatic ductal adenocarcinoma (PDAC). METHODS: Using quantitative real-time RT-PCR, we analyzed KIAA1199 mRNA expression in 6 PDAC cell lines and frozen tissues from 14 patients with PDAC...
December 18, 2016: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28007785/p38mapk-builds-a-hyaluronan-cancer-niche-to-drive-lung-tumorigenesis
#11
Anna Brichkina, Thomas Bertero, Hui Mun Loh, Nguyet Thi Minh Nguyen, Alexander Emelyanov, Sidwell Rigade, Marius Ilie, Paul Hofman, Cedric Gaggioli, Dmitry V Bulavin
Expansion of neoplastic lesions generates the initial signal that instigates the creation of a tumor niche. Nontransformed cell types within the microenvironment continuously coevolve with tumor cells to promote tumorigenesis. Here, we identify p38MAPK as a key component of human lung cancer, and specifically stromal interactomes, which provides an early, protumorigenic signal in the tissue microenvironment. We found that lung cancer growth depends on short-distance cues produced by the cancer niche in a p38-dependent manner...
December 1, 2016: Genes & Development
https://www.readbyqxmd.com/read/28003146/injectable-hyaluronic-acid-down-regulates-interferon-signaling-molecules-igfbp3-and-ifit3-in-the-bovine-intervertebral-disc
#12
Zepur Kazezian, Zhen Li, Mauro Alini, Sibylle Grad, Abhay Pandit
: Low back pain which is a major cause of disability for people aged between 20 and 50 years imposes a serious socio-economic burden. The current focus of regenerative medicine is on identifying molecular markers to facilitate the design of targeted therapeutics. Previously, we have demonstrated that expression of the anti-proliferative interferon-induced protein with tetratricopeptide repeats 3 (IFIT3) and pro-apoptotic insulin-like growth factor-binding protein-3 (IGFBP3), are up-regulated as downstream targets of the inflammatory cytokine interferon α (IFNα) signaling pathway in the human annulus fibrosus (AF)...
December 18, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/28002895/hybrid-complexes-of-high-and-low-molecular-weight-evaluation-using-an-in-vitro-model-of-osteoarthritis
#13
A Stellavato, F De Novellis, S Reale, M De Rosa, C Schiraldi
Hyaluronan (HA) is central in joint and cartilage functions and to restore synovial fluid viscosity. In patients with osteoarthritis (OA), molecular weight (MW) and concentration of hyaluronic acid (HA) are reduced, diminishing joint lubrication. IL-1β treatment was used to mimic osteoarthritis in a chondrocytes based in vitro model. The aim of our research, using this model and human chondrocytes was to assess the anti-inflammatory effect of H/L-HA hybrid complexes (SINOVIAL-HL®) in comparison with HA at high (H-HA) and low molecular weight (L-HA) separately used, through the evaluation of specific biomarkers involved in cartilage degradation and correlated to osteoarthritis...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/27999837/beyond-chemotherapeutics-cisplatin-as-a-temporary-buckle-to-fabricate-drug-loaded-nanogels
#14
Weiqi Zhang, Zhe Zhang, Ching-Hsuan Tung
A cisplatin templated nanogel with targeting capability was synthesized, inspired by cisplatin as a chemotherapeutic drug. After crosslinking the natural polysaccharide hyaluronan, a ligand for CD44, cisplatin could be removed by simple dialysis in a salt solution while the withheld drug remains entrapped.
December 21, 2016: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/27999814/sperm-dna-fragmentation-index-and-hyaluronan-binding-ability-in-men-from-infertile-couples-and-men-with-testicular-germ-cell-tumor
#15
Katarzyna Marchlewska, Eliza Filipiak, Renata Walczak-Jedrzejowska, Elzbieta Oszukowska, Slawomir Sobkiewicz, Malgorzata Wojt, Jacek Chmiel, Krzysztof Kula, Jolanta Slowikowska-Hilczer
Objective. To investigate sperm DNA fragmentation and sperm functional maturity in men from infertile couples (IC) and men with testicular germ cell tumor (TGCT). Materials and Methods. Semen samples were collected from 312 IC men and 23 men with TGCT before unilateral orchiectomy and oncological treatment. The sperm chromatin dispersion test was performed to determine DNA fragmentation index (DFI) and the ability of sperm to bind with hyaluronan (HA) was assessed. Results. In comparison with the IC men, the men with TGCT had a higher percentage of sperm with fragmented DNA (median 28% versus 21%; p < 0...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27999774/hyal-2-wwox-smad4-signaling-in-cell-death-and-anticancer-response
#16
REVIEW
Li-Jin Hsu, Ming-Fu Chiang, Chun-I Sze, Wan-Pei Su, Ye Vone Yap, I-Ting Lee, Hsiang-Ling Kuo, Nan-Shan Chang
Hyaluronidase HYAL-2 is a membrane-anchored protein and also localizes, in part, in the lysosome. Recent study from animal models revealed that both HYAL-1 and HYAL-2 are essential for the metabolism of hyaluronan (HA). Hyal-2 deficiency is associated with chronic thrombotic microangiopathy with hemolytic anemia in mice due to over accumulation of high molecular size HA. HYAL-2 is essential for platelet generation. Membrane HYAL-2 degrades HA bound by co-receptor CD44. Also, in a non-canonical signal pathway, HYAL-2 serves as a receptor for transforming growth factor beta (TGF-β) to signal with downstream tumor suppressors WWOX and SMAD4 to control gene transcription...
2016: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/27999746/low-molecular-weight-hyaluronan-lmw-ha-accelerates-lymph-node-metastasis-of-melanoma-cells-by-inducing-disruption-of-lymphatic-intercellular-adhesion
#17
Yan Du, Manlin Cao, Yiwen Liu, Yiqing He, Cuixia Yang, Man Wu, Guoliang Zhang, Feng Gao
Endothelial integrity defects initiate lymphatic metastasis of tumor cells. Low-molecular-weight hyaluronan (LMW-HA) derived from plasma and interstitial fluid was reported to be associated with tumor lymphatic metastasis. In addition, LMW-HA was proved to disrupt lymphatic vessel endothelium integrity, thus promoting lymphatic metastasis of tumor cells. Until now, there are few reports on how LMW-HA modulates lymphatic endothelial cells adhesion junctions and affects cancer cells metastasizing into lymph vessels...
2016: Oncoimmunology
https://www.readbyqxmd.com/read/27988009/nmr-study-of-hydroxy-and-amide-protons-in-hyaluronan-polymers
#18
Gustav Nestor, Corine Sandström
Hyaluronan (HA) is an important and well characterized glycosaminoglycan with high viscosity and water-retaining capacity. Nonetheless, it is not fully understood whether conformational properties of the easily characterized HA oligomers can be transferred to HA polymers. To investigate possible differences in hydration, hydrogen bonding and flexibility between HA polymers and oligomers, hydroxy and amide protons of HA polymers were studied by solution-state and high-resolution magic angle spinning (HR-MAS) NMR spectroscopy...
February 10, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/27987920/is-molecular-size-a-discriminating-factor-in-hyaluronan-interaction-with-human-cells
#19
Antonella D'Agostino, Antonietta Stellavato, Luisana Corsuto, Paola Diana, Rosanna Filosa, Annalisa La Gatta, Mario De Rosa, Chiara Schiraldi
Nowadays there is a great interest in investigating the effect of particular hyaluronan fragments in the biomedical field and in cosmeceutical applications. Literature has reported that very low molecular weight HA (Mw<5kDa) has an inflammatory effect, whilst HA ranging from 15 to 250 has shown controversial effects. This work aims to give better elucidation on the correlation between the different sized HA fragments and their biological functions. In this respect, a simple and effective degradation strategy is used to obtain several HA fragments...
February 10, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/27987902/study-of-interactions-between-hyaluronan-and-cationic-surfactants-by-means-of-calorimetry-turbidimetry-potentiometry-and-conductometry
#20
J Krouská, M Pekař, M Klučáková, B Šarac, M Bešter-Rogač
The thermodynamics of the micelle formation of the cationic surfactants tetradecyltrimethylammonium bromide (TTAB) and cetyltrimethylammonium bromide (CTAB) with and without the addition of hyaluronan of two molecular weights was studied in aqueous solution by titration calorimetry. Macroscopic phase separation, which was detected by calorimetry and also by conductometry, occurs when charges on the surfactant and hyaluronan are balanced. In contrast, turbidimetry and potentiometry showed hyaluronan-surfactant interactions at very low surfactant concentrations...
February 10, 2017: Carbohydrate Polymers
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