Affiliation:
1. Department of Biomedical Engineering The Pennsylvania State University University Park PA 16802 USA
2. Penn State Cancer Institute Penn State University College of Medicine Hershey PA 17033 USA
Abstract
AbstractCell surface engineering with exogeneous receptors holds great promise for various applications. However, current biological methods face problems with safety, antigen escape, and receptor stoichiometry. The purpose of this study is to develop a biochemical method for displaying polyvalent antibodies (PAbs) on the cell surface. The PAbs are synthesized through the self‐assembly of DNA‐Ab conjugates under physiological conditions without the involvement of any factors harsh to cells. The data show that PAb‐functionalized cells can recognize target cells much more effectively than monovalent controls. Moreover, dual Ab incorporation into the same PAb with a defined stoichiometric ratio leads to the formation of a polyvalent hybrid Ab (DPAb). DPAb‐functionalized cells can effectively recognize target cell models with antigen escape, which cannot be achieved by PAbs with one type of Ab. Therefore, this work presents a novel biochemical method for Ab display on the cell surface for enhanced cell recognition.
Funder
Penn State Hershey Cancer Institute
National Science Foundation
Subject
General Materials Science,General Chemistry