Serum Albumin-Peptide Conjugates for Simultaneous Heparin Binding and Detection.

ABSTRACT: Heparin is a polysaccharide-based anticoagulant agent, which is widely used in surgery and blood transfusion. However, overdosage of heparin may cause severe side effects such as bleeding and low blood platelet count. Currently, there is only one clinically licensed antidote for heparin: protamine sulfate, which is known to provoke adverse effects. In this work, we present a stable and biocompatible alternative for protamine sulfate that is based on serum albumin, which is conjugated with a variable number of heparin-binding peptides. The heparin-binding efficiency of the conjugates was evaluated with methylene blue displacement assay, dynamic light scattering, and anti-Xa assay. We found that multivalency of the peptides played a key role in the observed heparin-binding affinity and compl

SUBMITTER: Liu Q 

PROVIDER: S-EPMC6933801 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature