MOLECULAR INTERACTIONS AT THE CHEMISTRY-BIOLOGY INTERFACE: The Design of Interfacial Biomaterials and the Modulation of Galectin-3 Aggregation With Multivalent Saccharide Ligands

Parise, James

ISBN 10: 3639097998 / ISBN 13: 9783639097993

Published by VDM Verlag Dr. M ller, 2008

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Bibliographic Details

• Title: MOLECULAR INTERACTIONS AT THE CHEMISTRY-BIOLOGY INTERFACE: The Design of Interfacial Biomaterials and the Modulation of Galectin-3 Aggregation With Multivalent Saccharide Ligands
• Publisher: VDM Verlag Dr. M ller
• Publication Date: 2008
• Language: English
• ISBN 10: 3639097998
• ISBN 13: 9783639097993
• Binding: paperback
• Condition: Like New
• Book Type: book

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Synopsis

Myriad biological processes are governed by chemical reactions that occur on cell surfaces. In the first part of this work, a novel approach to direct biological processes that occur at the surface of artificial materials is described. A multi-faceted strategy has been developed to construct ¿interfacial biomaterials¿ that mediate specific biological processes via increased cellular adhesion to medically-relevant materials. A phage display selection strategy was developed to identify peptides that show increased affinity for natural and artificial substrates. In the second part, the molecular basis of protein¿carbohydrate binding is considered. Ligands displaying lactose epitopes were constructed to investigate their aggregative properties towards full¿length and truncated galectin¿3. ITC studies with full¿length protein shows a greater than two¿fold enhancement in affinity for the bivalent ligand compared to monovalent ligand. This behavior demonstrates that protein-protein interactions and aggregation are the primary cause for affinity increases observed with polyvalent saccharide ligands, and unambiguously establishes a molecular basis for the cluster glycoside effect.

About the Author

James A. Parise Jr, PhD, is an Instructor and the Manager of the Organic Chemistry Laboratories at Duke University in Durham, North Carolina. He received his PhD in organic chemistry at Duke University in 2007 under the direction of Eric Toone and did his postdoctoral work with David Lawrence at the University of North Carolina at Chapel Hill.