Journal
BIOMACROMOLECULES
Volume 14, Issue 12, Pages 4157-4160Publisher
AMER CHEMICAL SOC
DOI: 10.1021/bm4011722
Keywords
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Funding
- NIH/NIBIB [1R03EB008790]
- Danish National Research Foundation [95096422]
- [NSF-DMS-CDI-0835794]
- [NSF/CBET 1133427]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [0835794] Funding Source: National Science Foundation
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We report sensitization of a cellular signaling pathway by addition of functionalized DNA nanostructures. Signaling by transforming growth factor beta (TGF beta) has been shown to be dependent on receptor clustering. By patterning a DNA nanostructure with closely spaced peptides that bind to TGF beta receptor, we observe increased sensitivity of NMuMG cells to TGF beta ligand. This is evidenced by translocation of secondary messenger proteins to the nucleus and stimulation of an inducible luciferase reporter at lower concentrations of TGF beta ligand. We believe this represents an important initial step toward realization of DNA as a self-assembling and biologically compatible material for use in tissue engineering and drug delivery.
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