Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 113, Issue 5, Pages 1162-1167Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1524976113
Keywords
self-assembly; synthetic multilamellar vesicles; glycolipid mimics
Categories
Funding
- National Science Foundation [DMR-1066116, DMR-1120901]
- P. Roy Vagelos Chair at the University of Pennsylvania
- Humboldt Foundation
- EC Seventh Framework Programme (GLYCOPHARM)
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1066116] Funding Source: National Science Foundation
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A library of eight amphiphilic Janus glycodendrimers (GDs) with D-mannose (Man) headgroups, a known routing signal for lectin-mediated transport processes, was constructed via an iterative modular methodology. Sequence-defined variations of the Janus GD modulate the surface density and sequence of Man after self-assembly into multilamellar glycodendrimersomes (GDSs). The spatial mode of Man presentation is decisive for formation of either unilamellar or onion-like GDS vesicles. Man presentation and Janus GD concentration determine GDS size and number of bilayers. Beyond vesicle architecture, Man topological display affects kinetics and plateau level of GDS aggregation by a tetravalent model lectin: the leguminous agglutinin Con A, which is structurally related to endogenous cargo transporters. The agglutination process was rapid, efficient, and readily reversible for onion-like GDSs, demonstrating their value as versatile tools to explore the nature of physiologically relevant glycan/lectin pairing.
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