共查询到20条相似文献,搜索用时 31 毫秒
1.
Jana Hujová Jakub Sikora Robert Dobrovolny Helena Poupětová Jana Ledvinová Marta Kostrouchová Martin H?ebí?ek 《BMC cell biology》2005,6(1):5
Background
Human α-galactosidase A (α-GAL) and α-N-acetylgalactosaminidase (α-NAGA) are presumed to share a common ancestor. Deficiencies of these enzymes cause two well-characterized human lysosomal storage disorders (LSD) – Fabry (α-GAL deficiency) and Schindler (α-NAGA deficiency) diseases. Caenorhabditis elegans was previously shown to be a relevant model organism for several late endosomal/lysosomal membrane proteins associated with LSDs. The aim of this study was to identify and characterize C. elegans orthologs to both human lysosomal luminal proteins α-GAL and α-NAGA. 相似文献2.
Yuanguang Meng Zhiqiang Wu Xiaoyun Yin Yali Zhao Meixia Chen Yiling Si Jie Yang Xiaobing Fu Weidong Han 《BMC cell biology》2009,10(1):96
Background
Oncogenesis in breast cancer is often associated with excess estrogen receptor α(ERα) activation and overexpression of its coactivators. LRP16 is both an ERα target gene and an ERα coactivator, and plays a crucial role in ERα activation and proliferation of MCF-7 breast cancer cells. However, the regulation of the functional availability of this coactivator protein is not yet clear. 相似文献3.
Görel Nyman Stina Marntell Anna Edner Pia Funkquist Karin Morgan Göran Hedenstierna 《Acta veterinaria Scandinavica》2009,51(1):22
Background
Sedation with α2-agonists in the horse is reported to be accompanied by impairment of arterial oxygenation. The present study was undertaken to investigate pulmonary gas exchange using the Multiple Inert Gas Elimination Technique (MIGET), during sedation with the α2-agonist detomidine alone and in combination with the opioid butorphanol. 相似文献4.
Background
Oligosaccharides containing a terminal Gal-α1,3-Gal moiety are collectively known as α-Gal epitopes. α-Gal epitopes are integral components of several medical treatments under development, including flu and HIV vaccines as well as cancer treatments. The difficulty associated with synthesizing the α-Gal epitope hinders the development and application of these treatments due to the limited availability and high cost of the α-Gal epitope. This work illustrates the development of a whole-cell biocatalyst for synthesizing the α-Gal epitope, Gal-α1,3-Lac. 相似文献5.
Huang-Chieh Lee Jen-Ning Tsai Pei-Yin Liao Wei-Yuan Tsai Kai-Yen Lin Chung-Cheng Chuang Chi-Kuang Sun Wen-Chang Chang Huai-Jen Tsai 《BMC developmental biology》2007,7(1):93
Background
Glycogen synthase kinase 3 (GSK3) encodes a serine/threonine protein kinase, is known to play roles in many biological processes. Two closely related GSK3 isoforms encoded by distinct genes: GSK3α (51 kDa) and GSK3β (47 kDa). In previously studies, most GSK3 inhibitors are not only inhibiting GSK3, but are also affecting many other kinases. In addition, because of highly similarity in amino acid sequence between GSK3α and GSK3β, making it difficult to identify an inhibitor that can be selective against GSK3α or GSK3β. Thus, it is relatively difficult to address the functions of GSK3 isoforms during embryogenesis. At this study, we attempt to specifically inhibit either GSK3α or GSK3β and uncover the isoform-specific roles that GSK3 plays during cardiogenesis. 相似文献6.
Massimo Mariotti Sara Castiglioni Daniela Bernardini Jeanette AM Maier 《Immunity & ageing : I & A》2006,3(1):4
Background
The functional changes associated with endothelial senescence may be involved in human aging and age-related vascular disorders. Since the inflammatory cytokine interleukin (IL-)1 inhibits endothelial growth, we evaluated the expression of IL-1α, IL-1β and their antagonist, the IL-1 receptor antagonist (IL-1ra), in endothelial in vitro senescence and quiescence. We also examined the expression of IL-1α in human senescent and progeric fibroblasts. 相似文献7.
Background
Fabry disease is a lysosomal X-linked enzyme deficiency of α-galactosidase A associated with an increased mortality and morbidity due to renal failure, cardiac disease and early onset stroke. 相似文献8.
Background
Alpha (α)-hemolysin is a pore forming cytolysin and serves as a virulence factor in intestinal and extraintestinal pathogenic strains of E. coli. It was suggested that the genes encoding α-hemolysin (hlyCABD) which can be found on the chromosome and plasmid, were acquired through horizontal gene transfer. Plasmid-encoded α-hly is associated with certain enterotoxigenic (ETEC), shigatoxigenic (STEC) and enteropathogenic E. coli (EPEC) strains. In uropathogenic E. coli (UPEC), the α-hly genes are located on chromosomal pathogenicity islands. Previous work suggested that plasmid and chromosomally encoded α-hly may have evolved independently. This was explored in our study. 相似文献9.
Michael Knoll Thomas M Hamm Florian Wagner Virginia Martinez Jürgen Pleiss 《BMC bioinformatics》2009,10(1):89
Background
Polyhydroxyalkanoates (PHAs) can be degraded by many microorganisms using intra- or extracellular PHA depolymerases. PHA depolymerases are very diverse in sequence and substrate specificity, but share a common α/β-hydrolase fold and a catalytic triad, which is also found in other α/β-hydrolases. 相似文献10.
11.
Ai-Hua Jin Hemma Brandstaetter Simon T Nevin Chia Chia Tan Richard J Clark David J Adams Paul F Alewood David J Craik Norelle L Daly 《BMC structural biology》2007,7(1):28
Background
α-Conotoxins have exciting therapeutic potential based on their high selectivity and affinity for nicotinic acetylcholine receptors. The spacing between the cysteine residues in α-conotoxins is variable, leading to the classification of sub-families. BuIA is the only α-conotoxin containing a 4/4 cysteine spacing and thus it is of significant interest to examine the structure of this conotoxin. 相似文献12.
Luciano Vellón Félix Royo Rune Matthiesen José Torres-Fuenzalida Alicia Lorenti Luis A Parada 《BMC cell biology》2010,11(1):81
Background
Cell scattering is a physiological process executed by stem and progenitor cells during embryonic liver development and postnatal organ regeneration. Here, we investigated the genomic events occurring during this process induced by functional blockade of α5β1 integrin in liver progenitor cells. 相似文献13.
Silvia N Kariuki Beverly S Franek Akaash A Kumar Jasmine Arrington Rachel A Mikolaitis Tammy O Utset Meenakshi Jolly Mary K Crow Andrew D Skol Timothy B Niewold 《Arthritis research & therapy》2010,12(4):R151
Introduction
Systemic lupus erythematosus (SLE) is a highly heterogeneous disorder, characterized by differences in autoantibody profile, serum cytokines, and clinical manifestations. SLE-associated autoantibodies and high serum interferon alpha (IFN-α) are important heritable phenotypes in SLE which are correlated with each other, and play a role in disease pathogenesis. These two heritable risk factors are shared between ancestral backgrounds. The aim of the study was to detect genetic factors associated with autoantibody profiles and serum IFN-α in SLE. 相似文献14.
Adak Nasiripourdori Bijan Ranjbar Hossein Naderi-Manesh 《Theoretical biology & medical modelling》2009,6(1):3-15
Background
The details of interaction in a complex between potent antagonists such as long chain α-neurotoxins and α-conotoxins with nicotinic acetylcholine receptor (nAChR), and conformational changes induced by these antagonists, are not yet clear. 相似文献15.
Zheng Li Shireesh Srivastava Xuerui Yang Sheenu Mittal Paul Norton James Resau Brian Haab Christina Chan 《BMC systems biology》2007,1(1):21-15
Background
Free fatty acids (FFA) and tumor necrosis factor alpha (TNF-α) have been implicated in the pathogenesis of many obesity-related metabolic disorders. When human hepatoblastoma cells (HepG2) were exposed to different types of FFA and TNF-α, saturated fatty acid was found to be cytotoxic and its toxicity was exacerbated by TNF-α. In order to identify the processes associated with the toxicity of saturated FFA and TNF-α, the metabolic and gene expression profiles were measured to characterize the cellular states. A computational model was developed to integrate these disparate data to reveal the underlying pathways and mechanisms involved in saturated fatty acid toxicity. 相似文献16.
Introduction
α-Fodrin is an autoantigen in Sj?gren's syndrome. We hypothesized that mucosal administration of α-fodrin might prevent the disease. 相似文献17.
Introduction
Methotrexate (MTX) induces macrophage apoptosis in vitro, but there is not much evidence for increased synovial macrophage apoptosis in MTX-treated patients. Macrophage apoptosis is reported, however, during clinical response to anti-tumor necrosis factor-alpha (TNF-α) treatments. This implies that TNF-α promotes macrophage survival and suggests that TNF-α may protect against MTX-induced apoptosis. We, therefore, investigated this proposal and the macrophage signaling pathways underlying it. 相似文献18.
William P Sheffield Louise J Eltringham-Smith Sharon Gataiance Varsha Bhakta 《BMC biotechnology》2009,9(1):15-11
Background
The plasma protein α2-antiplasmin (α2AP) is cross-linked to fibrin in blood clots by the transglutaminase factor XIIIa, and in that location retards clot lysis. Competition for this effect could be clinically useful in patients with thrombosis. We hypothesized that fusion of N-terminal portions of α2-antiplasmin to human serum albumin (HSA) and production of the chimeric proteins in Pichia pastoris yeast would produce a stable and effective competitor protein. 相似文献19.
20.
Asuka Inoue Isao Matsumoto Yoko Tanaka Keiichi Iwanami Akihiro Kanamori Naoyuki Ochiai Daisuke Goto Satoshi Ito Takayuki Sumida 《Arthritis research & therapy》2009,11(4):R118