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- W2020164739 abstract "Previous studies have shown that glycoproteins expressed in wild-type Pichia pastoris bind to Dendritic cell-SIGN (DC-Specific Intercellular adhesion molecule-3 Grabbing Nonintegrin), a mannose-binding receptor found on dendritic cells in peripheral tissues which is involved in antigen presentation and the initiation of an immune response. However, the binding of DC-SIGN to glycoproteins purified from P. pastoris strains engineered to express humanized N- and O-linked glycans has not been tested to date. In this study, the binding of glycoproteins with specific high-mannose or human N- and O-linked glycan structures to DC-SIGN was tested. Proteins with humanized N-glycans including Man5 structures and O-glycans (up to as many as 24) with single mannose chain length showed DC-SIGN binding that was comparable to that measured for a CHO-produced IgG1 which lacks O-linked mannose. Glycoproteins with wild-type N-glycans and mannotriose and higher O-glycans bound to DC-SIGN in a manner that was strongly inhibited by either the use of enzymatic N-deglycosylation or sodium meta-periodate oxidation. Mannan purified from humanized P. pastoris also showed lower ability to inhibit DC-SIGN binding to glycoproteins with wild type fungal glycosylation than mannan purified from wild type strains. This study shows that humanized P. pastoris can produce glycoproteins that do not bind to DC-SIGN." @default.
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- W2020164739 date "2012-12-01" @default.
- W2020164739 modified "2023-10-18" @default.
- W2020164739 title "Binding of DC-SIGN to glycoproteins expressed in glycoengineered Pichia pastoris" @default.
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- W2020164739 doi "https://doi.org/10.1016/j.jim.2012.08.015" @default.
- W2020164739 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/22982058" @default.
- W2020164739 hasPublicationYear "2012" @default.
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