skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: DNA-Peptide Amphiphile Nanofibers Enhance Aptamer Function

Journal Article · · ACS Applied Bio Materials
 [1];  [2];  [1];  [1]; ORCiD logo [1]
  1. Northwestern Univ., Evanston, IL (United States)
  2. Northwestern Univ., Evanston, IL (United States); Univ. of North Carolina, Chapel Hill, NC (United States)

The single-stranded DNA oligonucleotides known as aptamers have the capacity to bind proteins and other molecules and offer great therapeutic potential. Further work is required to optimize their function and to diminish their susceptibility to nuclease degradation. We report here on the synthesis and supramolecular self-assembly of DNA-peptide amphiphiles that form high aspect ratio nanofibers and display aptamers for the platelet-derived growth factor. The nanofibers were found to bind the growth factor with an affinity that was 5-fold greater than the free aptamer. Additionally, we also observed that the aptamer displayed by the supramolecular nanostructures was eight times more nuclease-resistant than the free aptamer. In order to highlight the therapeutic potential of these supramolecular systems, we demonstrated the improved inhibition of proliferation when the growth factor was bound to aptamers displayed by the nanofibers.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
USDOE Office of Science (SC); National Science Foundation (NSF); National Institutes of Health (NIH)
Grant/Contract Number:
AC02-06CH11357; 2R01DE015920–11; ALTF 233–2012; ECCS-1542205; P30 CA060553
OSTI ID:
1557289
Journal Information:
ACS Applied Bio Materials, Vol. 2, Issue 7; ISSN 2576-6422
Publisher:
ACS PublicationsCopyright Statement
Country of Publication:
United States
Language:
ENGLISH

References (52)

Systematic evolution of ligands by exponential enrichment: RNA ligands to bacteriophage T4 DNA polymerase journal August 1990
In vitro selection of RNA molecules that bind specific ligands journal August 1990
Modern affinity reagents: Recombinant antibodies and aptamers journal December 2015
Quantum Dot−Aptamer Conjugates for Synchronous Cancer Imaging, Therapy, and Sensing of Drug Delivery Based on Bi-Fluorescence Resonance Energy Transfer journal October 2007
Aptamer-based biosensors journal February 2008
Aptamer-based biosensors for biomedical diagnostics journal January 2014
Development of Aptamer-Based Point-of-Care Diagnostic Devices for Malaria Using Three-Dimensional Printing Rapid Prototyping journal February 2016
Aptamers as targeted therapeutics: current potential and challenges journal November 2016
Aptamers as therapeutics journal July 2010
2′-Fluoropyrimidine RNA-based Aptamers to the 165-Amino Acid Form of Vascular Endothelial Growth Factor (VEGF 165 ) : INHIBITION OF RECEPTOR BINDING AND VEGF-INDUCED VASCULAR PERMEABILITY THROUGH INTERACTIONS REQUIRING THE EXON 7-ENCODED DOMAIN journal August 1998
Modified RNA sequence pools for in vitro selection journal January 1994
Direct In Vitro Selection of a 2′-O-Methyl Aptamer to VEGF journal January 2005
Antidote-mediated control of an anticoagulant aptamer in vivo journal October 2004
Targeting Two Coagulation Cascade Proteases with a Bivalent Aptamer Yields a Potent and Antidote-Controllable Anticoagulant journal February 2016
Liposome-Anchored Vascular Endothelial Growth Factor Aptamers § journal September 1998
Engineering Dendritic Aptamer Assemblies as Superior Inhibitors of Protein Function journal January 2010
Design and Synthesis of Mono- and Multimeric Targeted Radiopharmaceuticals Based on Novel Cyclen Ligands Coupled to Anti-MUC1 Aptamers for the Diagnostic Imaging and Targeted Radiotherapy of Cancer journal July 2007
The role of spacers on the self-assembly of DNA aptamer-amphiphiles into micelles and nanotapes journal January 2014
Aptamer micelles targeting fractalkine-expressing cancer cells in vitro and in vivo journal January 2018
Self-Assembly and Mineralization of Peptide-Amphiphile Nanofibers journal November 2001
Self-assembling peptide scaffolds for regenerative medicine journal January 2012
Self-assembly of peptide amphiphiles: From molecules to nanostructures to biomaterials journal January 2010
Peptide supramolecular materials for therapeutics journal January 2018
A bioactive self-assembled membrane to promote angiogenesis journal February 2011
Supramolecular crafting of cell adhesion journal November 2007
Development of bioactive peptide amphiphiles for therapeutic cell delivery journal January 2010
Shape-Dependent Targeting of Injured Blood Vessels by Peptide Amphiphile Supramolecular Nanostructures journal February 2015
Peptide Amphiphile Nanostructures for Targeting of Atherosclerotic Plaque and Drug Delivery journal February 2018
Supramolecular nanostructures that mimic VEGF as a strategy for ischemic tissue repair journal August 2011
Supramolecular Nanostructure Activates TrkB Receptor Signaling of Neuronal Cells by Mimicking Brain-Derived Neurotrophic Factor journal September 2018
Mimicking the Bioactivity of Fibroblast Growth Factor-2 Using Supramolecular Nanoribbons journal June 2017
Selective Differentiation of Neural Progenitor Cells by High-Epitope Density Nanofibers journal February 2004
Sulfated glycopeptide nanostructures for multipotent protein activation journal June 2017
Gel Scaffolds of BMP-2-Binding Peptide Amphiphile Nanofibers for Spinal Arthrodesis journal April 2014
Supramolecular design of self-assembling nanofibers for cartilage regeneration journal February 2010
Switching of self-assembly in a peptide nanostructure with a specific enzyme journal January 2011
Bioactive DNA-Peptide Nanotubes Enhance the Differentiation of Neural Stem Cells Into Neurons journal December 2014
Instructing cells with programmable peptide DNA hybrids journal July 2017
Reversible self-assembly of superstructured networks journal October 2018
Inhibitory DNA Ligands to Platelet-Derived Growth Factor B-Chain journal January 1996
Role of platelet-derived growth factors in physiology and medicine journal May 2008
Tuning Supramolecular Rigidity of Peptide Fibers through Molecular Structure journal May 2010
Aptamer-displaying peptide amphiphile micelles as a cell-targeted delivery vehicle of peptide cargoes journal October 2018
The Chemical Biology of Aptamers journal March 2009
Embracing proteins: structural themes in aptamer–protein complexes journal February 2016
Circular dichroism and conformational polymorphism of DNA journal January 2009
Using circular dichroism spectra to estimate protein secondary structure journal January 2007
Circular Bivalent Aptamers Enable in Vivo Stability and Recognition journal June 2017
Improvement of Aptamer Affinity by Dimerization journal February 2008
Internal dynamics of a supramolecular nanofibre journal May 2014
Super-resolution microscopy reveals structural diversity in molecular exchange among peptide amphiphile nanofibres journal May 2016
Polyvalent DNA Nanoparticle Conjugates Stabilize Nucleic Acids journal January 2009

Cited By (2)

Biomedical Applications of DNA‐Based Hydrogels journal November 2019
Biomedical Applications of DNA-Based Hydrogels text January 2019

Similar Records

A tenascin-C mimetic peptide amphiphile nanofiber gel promotes neurite outgrowth and cell migration of neurosphere-derived cells
Journal Article · Thu Apr 07 00:00:00 EDT 2016 · Acta Biomaterialia · OSTI ID:1557289

Instructing cells with programmable peptide DNA hybrids
Journal Article · Mon Jul 10 00:00:00 EDT 2017 · Nature Communications · OSTI ID:1557289

Supramolecular Assembly of Peptide Amphiphiles
Journal Article · Wed Sep 06 00:00:00 EDT 2017 · Accounts of Chemical Research · OSTI ID:1557289