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    • 2. 发明授权
    • Alkynyl sugar analogs for the labeling and visualization of glycoconjugates in cells
    • 炔基糖类似物用于细胞中糖缀合物的标记和可视化
    • US07960139B2
    • 2011-06-14
    • US12079226
    • 2008-03-24
    • Masaaki SawaChi-Huey WongTsui-Ling HsuSarah Hanson
    • Masaaki SawaChi-Huey WongTsui-Ling HsuSarah Hanson
    • G01N33/53
    • G01N33/5005G01N33/5008G01N33/533G01N2400/00
    • The present disclosure relates to a method for metabolic oligosaccharide engineering that incorporates derivatized alkyne-bearing sugar analogs as “tags” into cellular glycoconjugates. The disclosed method incorporates alkynyl derivatized Fuc and alkynyl derivatized ManNAc sugars into a cellular glycoconjugate. A chemical probe comprising an azide group and a visual probe or a fluorogenic probe is used to label the alkyne-derivatized sugar-tagged glycoconjugate. In one aspect, the chemical probe binds covalently to the alkynyl group by Cu(I)-catalyzed [3+2] azide-alkyne cycloaddition and is visualized at the cell surface, intracellularly, or in a cellular extract. The labeled glycoconjugate is capable of detection by flow cytometry, SDS-PAGE, Western blot, ELISA or confocal microscopy, and mass spectrometry.
    • 本公开内容涉及将衍生的含炔烃类似物作为“标签”掺入细胞糖缀合物的代谢寡糖工程方法。 所公开的方法将炔基衍生化的Fuc和炔基衍生的ManNAc糖引入细胞糖缀合物中。 使用包含叠氮化物基团和视觉探针或荧光探针的化学探针来标记炔衍生的糖标记的糖缀合物。 在一个方面,化学探针通过Cu(I)催化的[3 + 2]叠氮炔环加成共价结合到炔基上,并且在细胞表面,细胞内或细胞提取物中可视化。 标记的糖缀合物能够通过流式细胞术,SDS-PAGE,Western印迹,ELISA或共聚焦显微镜和质谱检测。
    • 4. 发明授权
    • Glycoproteomic probes for fluorescent imaging of fucosylated glycans in vivo
    • 用于体内岩藻糖基化聚糖荧光成像的糖蛋白质组学探针
    • US08329413B2
    • 2012-12-11
    • US13053192
    • 2011-03-21
    • Chi-Huey WongTsui-Ling HsuSarah R HansonMasaaki Sawa
    • Chi-Huey WongTsui-Ling HsuSarah R HansonMasaaki Sawa
    • G01N33/53
    • G01N33/582G01N1/30G01N2400/00
    • Methods are provided for labeling cellular glycans bearing azide groups via fluorescent labeling comprising Cu(I)-catalyzed [3+2] cycloaddition of a probe comprising alkynyl group. Generation of fluorescent probes from a nonfluorescent precursor, 4-ethynyl-N-ethyl-1,8-naphthalimide, by Cu(I)-catalyzed [3+2] cycloaddition of the alkyne group of the probe to an azido-modified sugar are provided. Incorporation of azido-containing fucose analog into glycoconjugates via the fucose salvage pathway are disclosed. Fluorescent visualization of fucosylated cells by flow cytometry of cells treated with 6-azidofucose labeled with click-activated fluorogenic probe or biotinylated alkyne is disclosed. Visualization of intracellular location of fucosylated glycoconjugates by fluorescence microscopy are disclosed.
    • 提供了通过含有包含炔基的探针的Cu(I)催化的[3 + 2]环加成的荧光标记来标记携带叠氮基的细胞聚糖的方法。 通过Cu(I)催化的[3 + 2]环加成的探针的炔基与叠氮改性的糖,从非荧光前体4-乙炔基-N-乙基-1,8-萘二甲酰亚胺生成荧光探针是 提供。 公开了通过岩藻糖补救途径将叠氮基岩藻糖类似物掺入糖缀合物。 公开了通过用用点击激活的荧光探针或生物素化的炔标记的6-叠氮基聚糖处理的细胞的流式细胞术的岩藻糖基化细胞的荧光可视化。 公开了通过荧光显微镜观察岩藻糖基化糖缀合物的细胞内位置。
    • 5. 发明申请
    • Glycoproteomic probes for fluorescent imaging of fucosylated glycans in vivo
    • 用于体内岩藻糖基化聚糖荧光成像的糖蛋白质组学探针
    • US20080241856A1
    • 2008-10-02
    • US12079228
    • 2008-03-24
    • Chi-Huey WongTsui-Ling HsuSarah R. HansonMasaaki Sawa
    • Chi-Huey WongTsui-Ling HsuSarah R. HansonMasaaki Sawa
    • G01N33/53C12P19/44C12Q1/00
    • G01N33/582G01N1/30G01N2400/00
    • The disclosure provides a method of labeling of cellular glycans bearing azide groups via a fluorescent labeling technique based on Cu(I)-catalyzed [3+2]cycloaddition (click activation) of a probe comprising an alkynyl group. The method entails generating a fluorescent probe from a nonfluorescent precursor, 4-ethynyl-N-ethyl-1,8-naphthalimide, by Cu(I)-catalyzed [3+2]cycloaddition of the alkyne group of the probe with an azido-modified sugar. The disclosure further provides a method of incorporating an azido-containing fucose analog into glycoconjugates via the fucose salvage pathway. The disclosure provides a method of fluorescent visualization of fucosylated cells by flow cytometry when cells treated with 6-azidofucose are labeled with the click-activated fluorogenic probe or biotinylated alkyne. A method of visualizing the intracellular localization of fucosylated glycoconjugates by fluorescence microscopy is also disclosed.
    • 本公开提供了通过基于包含炔基的探针的Cu(I)催化的[3 + 2]环加成(点击活化)的荧光标记技术来标记携带叠氮基的细胞聚糖的方法。 该方法需要通过Cu(I)催化的[3 + 2]环加成的探针的炔基与非荧光前体4-乙炔基-N-乙基-1,8-萘酰亚胺的生成荧光探针, 改性糖。 本公开进一步提供了通过岩藻糖补救途径将含叠氮基岩藻糖类似物掺入糖缀合物的方法。 本公开内容提供了当用6-叠氮基聚糖处理的细胞用点击激活的荧光探针或生物素化的炔被标记时,流式细胞仪荧光显示岩藻糖基化细胞的方法。 还公开了通过荧光显微镜观察岩藻糖基化糖缀合物的细胞内定位的方法。
    • 6. 发明申请
    • GLYCOPROTEOMIC PROBES FOR FLUORESCENT IMAGING OF FUCOSYLATED GLYCANS IN VIVO
    • 血液中富含荧光成像的GLYCOPROTEOMIC PROBES
    • US20110257376A1
    • 2011-10-20
    • US13053192
    • 2011-03-21
    • Chi-Huey WongTsui-Ling HsuSarah R. HansonMasaaki Sawa
    • Chi-Huey WongTsui-Ling HsuSarah R. HansonMasaaki Sawa
    • C07K14/47C07H19/207
    • G01N33/582G01N1/30G01N2400/00
    • Methods are provided for labeling cellular glycans bearing azide groups via fluorescent labeling comprising Cu(I)-catalyzed [3+2] cycloaddition of a probe comprising alkynyl group. Generation of fluorescent probes from a nonfluorescent precursor, 4-ethynyl-N-ethyl-1,8-naphthalimide, by Cu(I)-catalyzed [3+2] cycloaddition of the alkyne group of the probe to an azido-modified sugar are provided. Incorporation of azido-containing fucose analog into glycoconjugates via the fucose salvage pathway are disclosed. Fluorescent visualization of fucosylated cells by flow cytometry of cells treated with 6-azidofucose labeled with click-activated fluorogenic probe or biotinylated alkyne is disclosed. Visualization of intracellular location of fucosylated glycoconjugates by fluorescence microscopy are disclosed.
    • 提供了通过含有包含炔基的探针的Cu(I)催化的[3 + 2]环加成的荧光标记来标记携带叠氮基的细胞聚糖的方法。 通过Cu(I)催化的[3 + 2]环加成的探针的炔基与叠氮改性的糖,从非荧光前体4-乙炔基-N-乙基-1,8-萘二甲酰亚胺生成荧光探针是 提供。 公开了通过岩藻糖补救途径将叠氮基岩藻糖类似物掺入糖缀合物。 公开了通过用用点击激活的荧光探针或生物素化的炔标记的6-叠氮基聚糖处理的细胞的流式细胞术的岩藻糖基化细胞的荧光可视化。 公开了通过荧光显微镜观察岩藻糖基化糖缀合物的细胞内位置。
    • 7. 发明授权
    • Glycoproteomic probes for fluorescent imaging fucosylated glycans in vivo
    • 用于体内荧光成像岩藻糖基化聚糖的糖蛋白质组学探针
    • US07910319B2
    • 2011-03-22
    • US12079228
    • 2008-03-24
    • Chi-Huey WongTsui-Ling HsuSarah R HansonMasaaki Sawa
    • Chi-Huey WongTsui-Ling HsuSarah R HansonMasaaki Sawa
    • G01N33/53
    • G01N33/582G01N1/30G01N2400/00
    • The disclosure provides a method of labeling of cellular glycans bearing azide groups via a fluorescent labeling technique based on Cu(I)-catalyzed [3+2]cycloaddition (click activation) of a probe comprising an alkynyl group. The method entails generating a fluorescent probe from a nonfluorescent precursor, 4-ethynyl-N-ethyl-1,8-naphthalimide, by Cu(I)-catalyzed [3+2]cycloaddition of the alkyne group of the probe with an azido-modified sugar. The disclosure further provides a method of incorporating an azido-containing fucose analog into glycoconjugates via the fucose salvage pathway. The disclosure provides a method of fluorescent visualization of fucosylated cells by flow cytometry when cells treated with 6-azidofucose are labeled with the click-activated fluorogenic probe or biotinylated alkyne. A method of visualizing the intracellular localization of fucosylated glycoconjugates by fluorescence microscopy is also disclosed.
    • 本公开提供了通过基于包含炔基的探针的Cu(I)催化的[3 + 2]环加成(点击活化)的荧光标记技术来标记携带叠氮基的细胞聚糖的方法。 该方法需要通过Cu(I)催化的[3 + 2]环加成的探针的炔基与非荧光前体4-乙炔基-N-乙基-1,8-萘酰亚胺的生成荧光探针, 改性糖。 本公开进一步提供了通过岩藻糖补救途径将含叠氮基岩藻糖类似物掺入糖缀合物的方法。 本公开内容提供了当用6-叠氮基聚糖处理的细胞用点击激活的荧光探针或生物素化的炔被标记时,流式细胞仪荧光显示岩藻糖基化细胞的方法。 还公开了通过荧光显微镜观察岩藻糖基化糖缀合物的细胞内定位的方法。
    • 8. 发明申请
    • METHODS AND REAGENTS FOR THE ANALYSIS AND PURIFICATION OF POLYSACCHARIDES
    • 多糖分析和纯化的方法和试剂
    • US20100055096A1
    • 2010-03-04
    • US12533086
    • 2009-07-31
    • Chi-Huey WongShie-Liang HsiehTsui-Ling HsuShih-Chin ChengSzu-Ting Chen
    • Chi-Huey WongShie-Liang HsiehTsui-Ling HsuShih-Chin ChengSzu-Ting Chen
    • A61K39/395
    • C07K16/2851C07K2317/76C07K2319/30G01N33/56972G01N33/56983G01N2333/18G01N2500/02Y02A50/53
    • The disclosure provides fusion proteins comprising a carbohydrate recognition domain of an innate immunity receptor and a heterologous polypeptide. The fusion proteins of the disclosure may be used, for example, to fingerprint polysaccharide compositions and to purify polysaccharide compositions. Polysaccharide compositions include those isolated from Ganoderma lucidum (Reishi). The methods and reagents of the disclosure may also be used to identify innate immunity receptors and cell types that bind to polysaccharide compositions (including polysaccharide compositions associated with pathogens), whereupon modulators of the identified receptors can then be obtained. The fusion proteins also may be used to inhibit the interaction between a polysaccharide composition and an innate immunity receptor on a cell surface. The methods and reagents of the disclosure are used in one example to determine that the DLVR1 innate immunity receptor on macrophages interacts with Dengue virus (DV), and that DLVR1 is responsible for DV-mediated secretion of proinflammatory cytokines from macrophages. The disclosure also provides DVLR1 antibodies that prevent the secretion of proinflammatory cytokines by DV-infected macrophages.
    • 本公开提供了包含先天免疫受体的碳水化合物识别结构域和异源多肽的融合蛋白。 本公开的融合蛋白可以用于例如指纹多糖组合物和纯化多糖组合物。 多糖组合物包括从灵芝(Reishi)分离的那些。 本公开的方法和试剂也可用于鉴定结合多糖组合物(包括与病原体相关的多糖组合物)的先天免疫受体和细胞类型,于是可以获得鉴定的受体的调节剂。 融合蛋白也可用于抑制多糖组合物和细胞表面上的先天免疫受体之间的相互作用。 在一个实例中使用本公开的方法和试剂来确定巨噬细胞上的DLVR1先天免疫受体与登革热病毒(DV)相互作用,并且DLVR1负责来自巨噬细胞的DV介导的促炎细胞因子的分泌。 本公开还提供DVLR1抗体,其防止DV感染的巨噬细胞分泌促炎细胞因子。