We described the chemical synthesis of a sulfated trisaccharide repeating unit of fucosylated chondroitin sulfate (FCS), which has significant anticoagulant activity. Well-functionalized monosaccharides were readily prepared, and highly efficient glycosylations using a common activator (NIS/TfOH) were also presented. The synthesized trisaccharide 4 could be used to extend oligosaccharide sequences
Synthesis of an Isotopically-labelled Antarctic Fish Antifreeze Glycoprotein Probe
作者:Joanna M. Wojnar、Clive W. Evans、Arthur L. DeVries、Margaret A. Brimble
DOI:10.1071/ch10464
日期:——
Antifreezeglycoproteins (AFGPs) are glycosylated polypeptides produced by Antarctic and Arctic fishes, which allow them to survive in seawater at sub-zero temperatures. An investigation into the postulated enteric uptake of AFGP synthesized in the exocrine pancreas of Antarctic fishes required a custom-prepared AFGP probe that incorporated seven isotopically-labelled Ala residues for detection by
抗冻糖蛋白(AFGP)是南极和北极鱼类产生的糖基化多肽,可以使它们在低于零温度的海水中生存。对南极鱼类外分泌胰腺中合成的AFGP的假定肠摄取的调查,需要定制的AFGP探针,该探针结合了7个同位素标记的Ala残基,用于质谱检测。的AFGPs由重复的三个氨基酸单元(丙氨酸-丙氨酸-苏氨酸),其中,所述苏氨酸残基是糖基化与二糖的β- d -Gal-(1→3)-α- d -GalNAc。同位素标记的AFGP8(1)的合成,以及受保护的糖基化氨基酸构件2的优化合成,已报告。
Synthetic and immunological studies on trimeric MUC1 immunodominant motif antigen-based anti-cancer vaccine candidates
作者:Mingjing Li、Fan Yu、Chao Yao、Peng George Wang、Yonghui Liu、Wei Zhao
DOI:10.1039/c7ob02976d
日期:——
Therapeuticvaccines have been regarded as a very promising treatment modality against cancer. Tumor-associated MUC1 is a promising antigen for the design of antitumor vaccines. However, body's immune tolerance and low immunogenicity of MUC1 glycopeptides limited their use as effective antigen epitopes of therapeuticvaccines. To solve this problem, we chose the immune dominant region of MUC1 VNTRs
Cowpea Mosaic Virus Capsid: A Promising Carrier for the Development of Carbohydrate Based Antitumor Vaccines
作者:Adeline Miermont、Hannah Barnhill、Erica Strable、Xiaowei Lu、Katherine A. Wall、Qian Wang、M. G. Finn、Xuefei Huang
DOI:10.1002/chem.200800203
日期:2008.5.29
Immunotherapy targeting tumor cell surface carbohydrates is a promising approach for cancer treatment. However, the low immunogenecity of carbohydrates presents a formidable challenge. We describe here the enhancement of carbohydrate immunogenicity by an ordered display on the surface of the cowpeamosaicvirus (CPMV) capsid. The Tn glycan, which is overexpressed on numerous cancer cell surfaces, was
A stereoselective and flexible synthesis to access both enantiomers of <i>N</i>-acetylgalactosamine and peracetylated <i>N</i>-acetylidosamine
作者:Bettina Riedl、Walther Schmid
DOI:10.3762/bjoc.14.71
日期:——
the Pd-catalyzed, stereo- and regioselective epoxide opening and subsequent nucleophilic substitution of an azide functionality. This approach enables the synthesis of the naturally D- and unnaturally L-configured GalNAc, as well as bothenantiomers of the largely unknown N-acetylidosamine (IdoNAc).