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Cao ZT, Gan LQ, Jiang W, Wang JL, Zhang HB, Zhang Y, Wang Y, Yang X, Xiong M, Wang J. Protein Binding Affinity of Polymeric Nanoparticles as a Direct Indicator of Their Pharmacokinetics. ACS Nano 2020; 14:3563-3575. [PMID: 32053346 DOI: 10.1021/acsnano.9b10015] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [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: 06/10/2023]
Abstract
Polymeric nanoparticles (NPs) are an important category of drug delivery systems, and their in vivo fate is closely associated with delivery efficacy. Analysis of the protein corona on the surface of NPs to understand the in vivo fate of different NPs has been shown to be reliable but complicated and time-consuming. In this work, we establish a simple approach for predicting the in vivo fate of polymeric NPs. We prepared a series of poly(ethylene glycol)-block-poly(d,l-lactide) (PEG-b-PLA) NPs with different protein binding behaviors by adjusting their PEG densities, which were determined by analyzing the serum protein adsorption. We further determined the protein binding affinity, denoted as the equilibrium association constant (KA), to correlate with in vivo fate of NPs. The in vivo fate, including blood clearance and Kupffer cell uptake, was studied, and the maximum concentration (Cmax), the area under the plasma concentration-time curve (AUC), and the mean residence time (MRT) were negatively linearly dependent, while Kupffer cell uptake was positively linearly dependent on KA. Subsequently, we verified the reliability of the approach for in vivo fate prediction using poly(methoxyethyl ethylene phosphate)-block-poly(d,l-lactide) (PEEP-b-PLA) and poly(vinylpyrrolidone)-block-poly(d,l-lactide) (PVP-b-PLA) NPs, and the linear relationship between the KA value and their PK parameters further suggests that the protein binding affinity of polymeric NPs can be a direct indicator of their pharmacokinetics.
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Affiliation(s)
- Zhi-Ting Cao
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P.R. China
| | - Li-Qin Gan
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, P.R. China
| | - Wei Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, P.R. China
| | - Ji-Long Wang
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P.R. China
| | - Hou-Bing Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, P.R. China
| | - Yue Zhang
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P.R. China
| | - Yucai Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, P.R. China
| | - Xianzhu Yang
- Institutes for Life Sciences and School of Medicine, South China University of Technology, Guangzhou 510006, P.R. China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, P.R. China
| | - Menghua Xiong
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P.R. China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou 510006, P.R. China
| | - Jun Wang
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P.R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, P.R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province and Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, P.R. China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, P.R. China
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