Journal
ACS NANO
Volume 3, Issue 8, Pages 2147-2152Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn9003814
Keywords
nanoparticle; oligonucleotide; mRNA; detection; gene regulation; theranostic
Categories
Funding
- Cancer Center for Nanotechnology Excellence (NCI-CCNE)
- LUNGevity Foundation-American Cancer Society Postdoctoral Fellowship in Lung Cancer
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We build off the previously described concept of a nanoflare to develop an oligonucleotide gold nanopartide conjugate that is capable of both detecting and regulating intracellular levels of mRNA. We characterize the binding rate and specificity of these materials using survivin, a gene associated with the diagnosis and treatment of cancer, as a target. The nanoconjugate enters cells and binds mRNA, thereby decreasing the relative abundance of mRNA in a dose- and sequence-dependent manner, resulting in a fluorescent response. This represents the first demonstration of a single material capable of both mRNA regulation and detection. Further, we investigate the intracellular biochemistry of the nanoconjugate, elucidating its mechanism of gene regulation. This work is important to the study of biologically active nanomaterials such as the nanoflare and is a first step toward the development of an mRNA responsive theranostic.
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