Chapter title |
MMP-14 Triggered Fluorescence Contrast Agent.
|
---|---|
Chapter number | 54 |
Book title |
Oxygen Transport to Tissue XXXVIII
|
Published in |
Advances in experimental medicine and biology, January 2016
|
DOI | 10.1007/978-3-319-38810-6_54 |
Pubmed ID | |
Book ISBNs |
978-3-31-938808-3, 978-3-31-938810-6
|
Authors |
Mai-Dung Nguyen, Kyung A. Kang |
Editors |
Qingming Luo, Lin Z. Li, David K. Harrison, Hua Shi, Duane F. Bruley |
Abstract |
Matrix metalloproteinase-14 (MMP-14) is involved in cancer invasion, metastasis, and angiogenesis. Therefore, it is considered to be a biomarker for aggressive cancer types, including some of the triple-negative breast cancer. Accurate (i.e., specific) and sensitive detection of MMP-14 can, thus, be important for the early diagnosis of and accurate prognosis for aggressive cancer, including the breast cancer caused by cell line MDA-MB 231. Fluorophore-mediated molecular sensing has been used for detecting biomarkers, for a long time. One way to increase the specificity of the sensing is designing the fluorophore to emit its fluorescence only when it encounters the biomarker of interest. When a fluorophore is placed on the surface of, or very close to a gold nanoparticle (GNP), its fluorescence is quenched. Applying this relationship between the GNP and fluorophore, we have developed a GNP-based, near-infrared fluorescent contrast agent that is highly specific for MMP-14. This agent normally emits only 14-17 % fluorescence of the free fluorophore. When the agent encounters MMP-14, its fluorescence gets fully restored, allowing MMP-14 specific optical signal emission. |
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