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Yu K, Yu Y, Yao Y, Wu Z, Fu S, Cheng RH, Chen YW, Chen HY, Zhou J, Hwang DW, Ding S. A Polypeptide-Based, Membrane-Penetrating, Target-Specific Contrast Agent for Magnetic Resonance Molecular Imaging. ACS APPLIED BIO MATERIALS 2021; 4:1597-1604. [DOI: 10.1021/acsabm.0c01442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kaichao Yu
- Department of Chemistry and Centre for Nanoscience and Nanotechnology, National Sun Yat-sen University, 70 Lien-Hai Road, Kaohsiung 80424, Taiwan
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yamian Yu
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yao Yao
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zhen Wu
- Department of Chemistry and Centre for Nanoscience and Nanotechnology, National Sun Yat-sen University, 70 Lien-Hai Road, Kaohsiung 80424, Taiwan
| | - Shitao Fu
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Ren-Hao Cheng
- Department of Chemistry and Centre for Nanoscience and Nanotechnology, National Sun Yat-sen University, 70 Lien-Hai Road, Kaohsiung 80424, Taiwan
| | - Yu-Wen Chen
- Institute of Biomedical Sciences, Academia Sinica, 128 Sec. 2, Academia Rd. Nankang, Taipei 115, Taiwan
| | - Hsuan-Ying Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, 100, Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan
| | - Jinlan Zhou
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Dennis W. Hwang
- Institute of Biomedical Sciences, Academia Sinica, 128 Sec. 2, Academia Rd. Nankang, Taipei 115, Taiwan
| | - Shangwu Ding
- Department of Chemistry and Centre for Nanoscience and Nanotechnology, National Sun Yat-sen University, 70 Lien-Hai Road, Kaohsiung 80424, Taiwan
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Cheng RH, Chen JM, Chen YW, Cai H, Cui X, Hwang DW, Chen Z, Ding S. Macromolecular Crowding May Significantly Affect the Performance of an MRI Contrast Agent: A 1H NMR Spectroscopy, Microimaging, and Fast-Field-Cycling NMR Relaxometry Study. ChemistryOpen 2018; 7:288-296. [PMID: 29657915 PMCID: PMC5891664 DOI: 10.1002/open.201700192] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Indexed: 11/09/2022] Open
Abstract
Contrast enhancement agents are often employed in magnetic resonance imaging (MRI) for clinical diagnosis and biomedical research. However, the current theory on MRI contrast generation does not consider the ubiquitous presence of macromolecular crowders in biological systems, which poses the risk of inaccurate data interpretation and misdiagnosis. To address this issue, herein the macromolecular crowding effects on MRI contrast agent are investigated with the 1H relaxation rate of water in aqueous solutions of Dotarem with different concentrations of macromolecules. Two representative macromolecular crowder systems are used: polyethylene glycol (with no specific secondary structure) and bovine serum albumin (with compact secondary and tertiary structures). The water 1H relaxation rates in various solutions are measured in a fixed magnetic field and in variable magnetic fields. The results show significant crowding effects for both crowders. The relaxation rate is proportional to the concentration of the MRI contrast agent but shows conspicuous superlinearity with respect to the concentration of the crowder. The size of polyethylene glycol does not affect the relaxivity of water in Dotarem solutions. The above effects are verified with T1- and T2-weighted NMR microimages. These results highlight the importance of the effect of macromolecular crowding on the MRI contrast agent and are valuable for understanding the mechanism of MRI contrast agents and designing new-generation MRI contrast agents.
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Affiliation(s)
- Ren-Hao Cheng
- Department of Chemistry and Center for Nanoscience & Nanotechnology National Sun Yat-sen University 70 Lien-Hai Road, Kaohsiung Taiwan 80424 Republic of China)
| | - Jie-Min Chen
- Department of Chemistry and Center for Nanoscience & Nanotechnology National Sun Yat-sen University 70 Lien-Hai Road, Kaohsiung Taiwan 80424 Republic of China)
| | - Yu-Wen Chen
- Institute of Biomedical Sciences Academia Sinica Taipei (Taiwan) 115 Republic of China
| | - Honghao Cai
- Department of Chemistry and Center for Nanoscience & Nanotechnology National Sun Yat-sen University 70 Lien-Hai Road, Kaohsiung Taiwan 80424 Republic of China).,Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, State Key Laboratory of Physical Chemistry of Solid Surfaces Xiamen University 422 Siming South Road Xiamen 361005 P.R. China.,School of Science Jimei University 183 Yinjiang Road Xiamen 361021 P.R. China
| | - Xiaohong Cui
- Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, State Key Laboratory of Physical Chemistry of Solid Surfaces Xiamen University 422 Siming South Road Xiamen 361005 P.R. China
| | - Dennis W Hwang
- Institute of Biomedical Sciences Academia Sinica Taipei (Taiwan) 115 Republic of China
| | - Zhong Chen
- Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, State Key Laboratory of Physical Chemistry of Solid Surfaces Xiamen University 422 Siming South Road Xiamen 361005 P.R. China
| | - Shangwu Ding
- Department of Chemistry and Center for Nanoscience & Nanotechnology National Sun Yat-sen University 70 Lien-Hai Road, Kaohsiung Taiwan 80424 Republic of China)
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