Nano-flares for mRNA regulation and detection.

Nano-flares for mRNA regulation and detection.
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DOI:
10.1021/nn9003814
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发表时间:
2009-08-25
期刊:
影响因子:
17.1
通讯作者:
Mirkin, Chad A.
Mirkin, Chad A.
中科院分区:
材料科学1区
文献类型:
--
作者:
Prigodich, Andrew E.;Seferos, Dwight S.;Massich, Matthew D.;Giljohann, David A.;Lane, Brandon C.;Mirkin, Chad A.

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We build off the previously described concept of a nano-flare to develop an oligonucleotide gold nanoparticle 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 and 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 nano-flare and is a first step towards the development of an mRNA responsive ‘theranostic’.
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