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Li X, Bottini M, Zhang L, Zhang S, Chen J, Zhang T, Liu L, Rosato N, Ma X, Shi X, Wu Y, Guo W, Liang XJ. Core-Satellite Nanomedicines for in Vivo Real-Time Monitoring of Enzyme-Activatable Drug Release by Fluorescence and Photoacoustic Dual-Modal Imaging. ACS Nano 2019; 13:176-186. [PMID: 30592401 DOI: 10.1021/acsnano.8b05136] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
It remains an unresolved challenge to achieve spatial and temporal monitoring of drug release from nanomedicines (NMs) in vivo, which is of crucial importance in disease treatment. To tackle this issue, we constructed core-satellite ICG/DOX@Gel-CuS NMs, which consist of gelatin (Gel) nanoparticles (NPs) with payloads of near-infrared fluorochrome indocyanine green (ICG) and chemo-drug doxorubicin (DOX) and surrounding CuS NPs. The fluorescence of ICG was initially shielded by satellite CuS NPs within the intact ICG/DOX@Gel-CuS NMs and increased in proportion to the amount of DOX released from NMs in response to enzyme-activated NMs degradation. For more comprehensive understanding of the drug-release profile, a theoretical model derived from computer simulation was employed to reconstruct the enzyme-activatable drug release of the ICG/DOX@Gel-CuS NMs, which demonstrated the underlying kinetics functional relationship between the released DOX amount and recovered ICG fluorescence intensity. The kinetics of drug release in vivo was assessed by administrating ICG/DOX@Gel-CuS NMs both locally and systemically into MDA-MB-231 tumor-bearing mice. Upon accumulation of ICG/DOX@Gel-CuS NMs in the tumor, overexpressed enzymes triggered the degradation of the gelatin scaffold as well as the release of DOX and ICG, which can be visually depicted with the ICG fluorescence signal increasing only in the tumor area by fluorescence imaging. Additionally, the photoacoustic signal from CuS NPs was independent from the physical status of ICG/DOX@Gel-CuS NMs and hence was utilized for real-time NMs tracking. Thus, by taking advantage of the core-satellite architecture and NMs degradability in tumor site, the DOX release profile of ICG/DOX@Gel-CuS NMs was monitored by fluorescence and photoacoustic dual-modal imaging in a real-time noninvasive manner.
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Affiliation(s)
- Xianlei Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology of China , No. 11, First North Road , Zhongguancun, Beijing 100190 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Massimo Bottini
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology of China , No. 11, First North Road , Zhongguancun, Beijing 100190 , P. R. China
- Department of Experimental Medicine and Surgery , University of Rome Tor Vergata , Via Montpellier 1 , 00133 Rome , Italy
| | - Luyao Zhang
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
- LNM, Institute of Mechanics, Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Shuai Zhang
- CAS Key Laboratory of Molecular Imaging , Institute of Automation, Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Jing Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology of China , No. 11, First North Road , Zhongguancun, Beijing 100190 , P. R. China
| | - Tingbin Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology of China , No. 11, First North Road , Zhongguancun, Beijing 100190 , P. R. China
| | - Lu Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology of China , No. 11, First North Road , Zhongguancun, Beijing 100190 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Nicola Rosato
- Department of Experimental Medicine and Surgery , University of Rome Tor Vergata , Via Montpellier 1 , 00133 Rome , Italy
| | - Xibo Ma
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
- CAS Key Laboratory of Molecular Imaging , Institute of Automation, Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Xinghua Shi
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
- CAS Key Laboratory for Nanosystem and Hierarchy Fabrication, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology, Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Yan Wu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology of China , No. 11, First North Road , Zhongguancun, Beijing 100190 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Weisheng Guo
- Translational Medicine Center, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital , Guangzhou Medical University , Guangzhou 510260 , P. R. China
| | - Xing-Jie Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology of China , No. 11, First North Road , Zhongguancun, Beijing 100190 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
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