The DOI matches its Crossref record; 48 of the 48 references it cites were found in a registry or an index.
Real-Time Tracking and In Vivo Visualization of β-Galactosidase Activity in Colorectal Tumor with a Ratiometric Near-Infrared Fluorescent Probe
Open accessAbstract
Development of "smart" noninvasive bioimaging probes for trapping specific enzyme activities is highly desirable for cancer therapy in vivo. Given that β-galactosidase (β-gal) is an important biomarker for cell senescence and primary ovarian cancers, we design an enzyme-activatable ratiometric near-infrared (NIR) probe (DCM-βgal) for the real-time fluorescent quantification and trapping of β-gal activity in vivo and in situ. DCM-βgal manifests significantly ratiometric and turn-on NIR fluorescent signals simultaneously in response to β-gal concentration, which makes it favorable for monitoring dynamic β-gal activity in vivo with self-calibration in fluorescent mode. We exemplify DCM-βgal for the ratiometric tracking of endogenously overexpressed β-gal distribution in living 293T cells via the lacZ gene transfection method and OVCAR-3 cells, and further realize real-time in vivo bioimaging of β-gal activity in colorectal tumor-bearing nude mice. Advantages of our system include light-up ratiometric NIR fluorescence with large Stokes shift, high photostability, and pH independency under the physiological range, allowing for the in vivo real-time evaluation of β-gal activity at the tumor site with high-resolution three-dimensional bioimaging for the first time. Our work provides a potential tool for in vivo real-time tracking enzyme activity in preclinical applications.
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Recent progresses in small-molecule enzymatic fluorescent probes for cancer imaging
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Molecular optical imaging probes for early diagnosis of drug-induced acute kidney injury
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Fluorescent Probes for Disease Diagnosis
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Self-citationPrecise nanomedicine for intelligent therapy of cancer
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Metadata
- Authors
- Gu, K., Xu, Y., Li, H., Guo, Z., Zhu, S., Zhu, S., Shi, P., James, T. D., Tian, H., & Zhu, W.-H.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-04-15
- Volume
- 138
- Issue
- 16
- Pages
- 5334-5340
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2313883665
- Cited by
- 498
- References
- 48
- FWCI
- 32.88
- Type
- journal article
- Language
- en
- Open access
- green
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- Gu, K., Xu, Y., Li, H., Guo, Z., Zhu, S., Zhu, S., Shi, P., James, T. D., Tian, H., & Zhu, W.-H. (2016). Real-Time Tracking and In Vivo Visualization of β-Galactosidase Activity in Colorectal Tumor with a Ratiometric Near-Infrared Fluorescent Probe. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.6b01705
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