123 results about "Sugar transporter" patented technology

The present invention relates to eukaryotic host cells having modified oligosaccharides which may be modified further by heterologous expression of a set of glycosyltransferases, sugar transporters and mannosidases to become host-strains for the production of mammalian, e.g., human therapeutic glycoproteins. The invention provides nucleic acid molecules and combinatorial libraries which can be used to successfully target and express mammalian enzymatic activities such as those involved in glycosylation to intracellular compartments in a eukaryotic host cell. The process provides an engineered host cell which can be used to express and target any desirable gene(s) involved in glycosylation. Host cells with modified oligosaccharides are created or selected. N-glycans made in the engineered host cells have a Man5GlcNAc2 core structure which may then be modified further by heterologous expression of one or more enzymes, e.g., glycosyltransferases, sugar transporters and mannosidases, to yield human-like glycoproteins. For the production of therapeutic proteins, this method may be adapted to engineer cell lines in which any desired glycosylation structure may be obtained.

The present invention relates to eukaryotic host cells having modified oligosaccharides which may be modified further by heterologous expression of a set of glycosyltransferases, sugar transporters and mannosidases to become host-strains for the production of mammalian, e.g., human therapeutic glycoproteins. The process provides an engineered host cell which can be used to express and target any desirable gene(s) involved in glycosylation. Host cells with modified lipid-linked oligosaccharides are created or selected. N-glycans made in the engineered host cells exhibit GnTIII activity, which produce bisected N-glycan structures and may be modified further by heterologous expression of one or more enzymes, e.g., glycosyltransferases, sugar transporters and mannosidases, to yield human-like glycoproteins. For the production of therapeutic proteins, this method may be adapted to engineer cell lines in which any desired glycosylation structure may be obtained.

Isolated and / or purified polypeptides and nucleic acid sequences encoding polypeptides from Alicyclobacillus acidocaldarius are provided. Further provided are methods for transporting sugars across cell membranes using isolated and / or purified polypeptides and nucleic acid sequences from Alicyclobacillus acidocaldarius.

The invention relates to compositions comprising three inhibitors, one pancreatic lipase inhibitor, an alpha glucosidase inhibitor, and a sodium dependent glucose transporter inhibitor. The invention also provides methods of using the compositions for controlling glucose and lipid uptake.

Compounds of Formula (I) are described herein and the uses thereof for the treatment of diseases, conditions and / or disorders mediated by sodium-glucose transporter inhibitors (in particular, SGLT2 inhibitors).

The present invention is directed to a novel process for the preparation of compounds having inhibitory activity against sodium-dependent glucose transporter (SGLT) being present in the intestine or kidney.

A method of generating pancreatic progenitor cells is disclosed. The method comprises:(a) differentiating stem cells under conditions such that at least a portion of the cells express glucose transporter 2 (GLUT2) so as to generate GLUT2-expressing cells; and(b) enriching for the GLUT2-expressing cells so as to generate a population of GLUT2 enriched cells, wherein at least 80% of the population of GLUT2 enriched cells express GLUT2, thereby generating pancreatic progenitor cells.Isolated populations of cells generated according to the method, pharmaceutical compositions comprising same and uses thereof are also disclosed.

The invention relates to compositions comprising at least two inhibitors selected from the group consisting of an alpha amylase inhibitor, an alpha glucosidase inhibitor, and a sodium dependent glucose transporter inhibitor. The invention also provides methods of using the compositions for controlling glucose uptake.

The invention relates to a C-aryl glucoside derivative shown by a formula (I) or salts thereof acceptable in pharmacy or all stereoisomerides thereof, a preparation method thereof, a pharmaceutical composition containing the derivative, and the application of the derivative as a therapeutic agent, particularly as a SGLT (Sodium Dependent Glucose Transporter) inhibitor, wherein the definitions of each substituent group in the formula (I) are same with those in a specification.

The present invention provides an immediate release pharmaceutical formulation which includes a tablet or capsule formulation comprising metformin and the sodium dependent glucose transporter (SGLT2) inhibitor dapagliflozin or its propylene glycol hydrate. The present invention also provides methods of preparing the formulations and methods of treating diseases or disorders associated with SGLT2 activity employing these formulations.

The invention relates to C-aryl glucoside derivatives containing a difluoromethylene group. Specifically, the invention provides novel sodium-dependent glucose transporter (SGLT-2) inhibitors, a preparation method thereof and application thereof in preparing drugs for the treatment of diseases related to SGLT-2, especially diabetes, obesity and diabetic complications. The C-aryl glucoside derivatives provided by the invention have stronger inhibition activity and higher selectivity for sodium-dependent glucose transporter (SGLT-2), and can obviously promote the emission of glucose in urine of animals.

The present invention relates to the production of organic acids with yeasts that overexpress at least one sugar transporter. The yeast might express further genes related to the production of the desired organic acid. The organic acid is produced by cultivation of the yeast overexpressing a sugar transporter in an adequate culture medium, whereupon the desired organic acid is accumulated in the culture medium and subsequently purified to the desired degree by techniques known in the art.

The invention discloses application of an important gene GmSWEET6 of a soybean sucrose transporter and relates to the fields of plant genetic engineering and biotechnologies. According to a real-timefluorescent quantitative PCR (Polymerase Chain Reaction) method, the sucrose transporter gene GmSWEET6 with mycorrhiza induced expression is identified in soybeans. The expression of the gene is regulated by mycorrhiza fungus infection. Under mycorrhiza fungus inoculation conditions, over-expressed or interference expressed GmSWEET6 in transgenic soybean plants has an effect of regulating plant growth and phosphorus absorption and has a significant influence on beneficial symbiosis of the soybeans and arbuscular mycorrhiza fungi, which has significance for explaining biological functions of the SWEET genes in symbiosis of leguminous crops and the mycorrhiza fungi so as to regulate beneficial symbiosis between plants and the mycorrhiza fungi.

The invention discloses a 2 '-fucosyllactose high-yield strain as well as a preparation method and application thereof. The preservation number of the strain is CGMCC No.19557. Escherichia coli E.coliBL21 (DE3) is used as a production host, and phosphomannose mutase (manB), mannose-1-phosphate phosphate guanylyltransferase (manC), GDP-mannose-4, 6-dehydratase (gmd), GDP-L-fucose synthase (flc) and alpha-1,2- fucosyltransferase (futC) are overexpressed so as to construct a synthesis path of the 2'-FL; substrate supply is improved by overexpressing sucrose transporter and lactose transporter onthe basis, the production capacity of 2 '-FL is further improved, efficient expression of 2'-FL in escherichia coli is realized, the 2 '-FL high-yield strain is improved.

A coryneform bacterium transformant prepared by transferring an exogenous gene which encodes a protein having a sugar transporter function into a coryneform bacterium capable of utilizing D-xylose.

Isolated and / or purified polypeptides and nucleic acid sequences encoding polypeptides from Alicyclobacillus acidocaldarius are provided. Further provided are methods for transporting sugars across cell membranes using isolated and / or purified polypeptides and nucleic acid sequences from Alicyclobacillus acidocaldarius.

The invention provides isolated nucleic acids molecules, designated 38594, 57312, 53659, 57250, 63760, 49938, 32146, 57259, 67118, 67067, 62092, FBH58295FL, 57255, and 57255alt nucleic acid molecules, which encode transporter molecules, including sugar transporters, organic anion transporters, amino acid transporters, and phospholipid transporters. The invention also provides antisense nucleic acid molecules, recombinant expression vectors containing 38594, 57312, 53659, 57250, 63760, 49938, 32146, 57259, 67118, 67067, 62092, FBH58295FL, 57255, and 57255alt nucleic acid molecules, host cells into which the expression vectors have been introduced, and non-human transgenic animals in which a 38594, 57312, 53659, 57250, 63760, 49938, 32146, 57259, 67118, 67067, 62092, FBH58295FL, 57255, and 57255alt gene has been introduced or disrupted. The invention still further provides isolated 38594, 57312, 53659, 57250, 63760, 49938, 32146, 57259, 67118, 67067, 62092, FBH58295FL, 57255, and 57255alt polypeptides, fusion polypeptides, antigenic peptides and anti-38594, 57312, 53659, 57250, 63760, 49938, 32146, 57259, 67118, 67067, 62092, FBH58295FL, 57255, and 57255alt antibodies. Diagnostic and therapeutic methods utilizing compositions of the invention are also provided.

The invention discloses an apple fruit hexose transporter gene MdHT2.2, the nucleotide sequence of which is shown in a sequence table 1. The invention also discloses a recombinant expression vector, an expression box, a transgenic cell line, a transgenic plant tissue or recombinant bacteria which contain the apple fruit hexose transporter gene MdHT2.2, and also discloses a protein coded by the apple fruit hexose transporter gene MdHT2.2, wherein the amino acid sequence is shown in a sequence 2, and the application of the apple fruit hexose transporter gene MdHT2.2. The apple fruit hexose transporter gene MdHT2.2 can synthesize apple fruit hexose transporter; the apple fruit hexose transporter can promote the transport of glucose, fructose and the like into cytoplasm and improve the fruit quality; the application of the apple fruit hexose transporter in transgenic plants with early flowering has obvious effects in the fields of improving the hexose content of the plant fruits, improvingthe size of the plant fruits, dwarfing the plants and the like.

The invention discloses a pyrus fruit sugar transporter gene PbTMT4 and application thereof. The nucleotide sequence of the pyrus fruit sugar transporter gene PbTMT4 is as shown in SEQ ID NO.1. Tomato plants overexpressing the pyrus gene PbTMT4 bloom and bear fruits in advance obviously, and the sugar contents of fruits are obviously higher than the sugar content of fruits of wild type tomato plants. The pyrus fruit sugar transporter gene PbTMT4 can be applied to constructing transgenic plants blooming in advance and enhancing the sugar contents of plant fruits.

The invention encompasses compositions and methods for effectively treating and / or preventing diabetes and / or obesity. This is accomplished by totally addressing the multiple mechanisms that lead to such conditions. The invention includes compositions comprising a combination of agents that effectively suppress, regulate or interfere with the various biochemical processes and mechanisms that lead to diabetes and obesity. The inventive compositions used for administration to human and other mammalian subjects comprise (1) at least one agent capable of modulating expression and / or activity of one or more of peroxisome activated protein receptor gamma (PPAR-γ), CAAT / enhancer binding protein-α (C / EBPα) and Sterol Regulatory Element-Binding Protein (SREBP-1); (2) at least one agent capable of activating Wnt / β-catenin pathway; (3) at least one agent capable of activating the adenosine monophosphate-activated protein kinase (AMPK) signaling pathway; (4) at least one agent that inhibits the activity of pro-oxidants including reactive nitrogen species and reactive oxygen species (ROS); (5) at least one agent that suppresses one or more of inflammatory mediators including interleukins IL-1α, IL-1β, IL-6, NF-κB, TNF-α, matrix metalloproteinases (MMPs) and prostaglandin E2 (PGE2); (6) at least one agent capable of enhancing glucose transporter (GLUT4) and / or inhibiting glucose transporter GLUT2; (7) at least one agent that induces the expression of and / or activates adiponectin and (8) at least one agent that induces the expression of and / or activates sirtuin (SIRT1). The active agents for use herein are natural materials such as phytonutrients, vitamins and minerals. Compositions with combinations of such natural agents have the ability to prevent, reduce or treat diabetes and obesity by (a) clearing glucose and fatty acids from blood, (b) reducing the number of adipose cells and fat storage, (c) interfering with fat, glucose, and cholesterol biosynthesis, and (d) promoting fat and glucose oxidation.Since the present compositions are aimed toward normalizing metabolism and energy expenditure and managing oxidative stress and inflammation, they are also beneficial in relation to physical activity, in particular performance, endurance, fatigue and recovery during intensive and continuous exercise / exertion.

An object of the present invention is to provide a means for producing O-fucosylated protein in large quantities, a means for searching for new genes associated with the synthesis system of O-fucosylated protein or the proteins expressed by the genes, and a means for elucidating the functions thereof. According to the present invention, a yeast transformant characterized in that the genes associated with the synthesis system of O-fucosylated protein are a GDP-fucose synthase gene, a GDP-fucose transporter gene, a fucosyltransferase gene, and a fucose receptor gene is provided.