1
|
Bona BL, Lagarrigue P, Chirizzi C, Espinoza MIM, Pipino C, Metrangolo P, Cellesi F, Baldelli Bombelli F. Design of fluorinated stealth poly(ε-caprolactone) nanocarriers. Colloids Surf B Biointerfaces 2024; 234:113730. [PMID: 38176337 DOI: 10.1016/j.colsurfb.2023.113730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/21/2023] [Accepted: 12/24/2023] [Indexed: 01/06/2024]
Abstract
The covalent functionalization of polymers with fluorinated moieties represents a promising strategy for the development of multimodal systems. Moreover, polymer fluorination often endows the resulting nanocarriers with improved colloidal stability in the biological environment. In this work, we developed fluorinated pegylated (PEG) biodegradable poly(ε-caprolactone) (PCL) drug nanocarriers showing both high colloidal stability and stealth properties, as well as being (19F)-Nuclear Magnetic Resonance (NMR) detectable. The optimized nanocarriers were obtained mixing a PEG-PCL block copolymer with a nonafluoro-functionalized PCL polymer. The role of PEGylation and fluorination on self-assembly and colloidal behavior of the obtained nanoparticles (NPs) was investigated, as well as their respective role on stealth properties and colloidal stability. To prove the feasibility of the developed NPs as potential 19F NMR detectable drug delivery systems, a hydrophobic drug was successfully encapsulated, and the maintenance of the relevant 19F NMR properties evaluated. Drug-loaded fluorinated NPs still retained a sharp and intense 19F NMR signal and good relaxivity parameters (i.e., T1 and T2 relaxation times) in water, which were not impaired by drug encapsulation.
Collapse
Affiliation(s)
- Beatrice Lucia Bona
- SupraBioNanoLab, Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Milano 20131, Italy
| | - Prescillia Lagarrigue
- SupraBioNanoLab, Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Milano 20131, Italy; Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Milano 20131, Italy
| | - Cristina Chirizzi
- SupraBioNanoLab, Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Milano 20131, Italy
| | - Maria Isabel Martinez Espinoza
- SupraBioNanoLab, Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Milano 20131, Italy
| | - Christian Pipino
- SupraBioNanoLab, Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Milano 20131, Italy
| | - Pierangelo Metrangolo
- SupraBioNanoLab, Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Milano 20131, Italy
| | - Francesco Cellesi
- SupraBioNanoLab, Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Milano 20131, Italy; Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Milano 20131, Italy
| | - Francesca Baldelli Bombelli
- SupraBioNanoLab, Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Milano 20131, Italy.
| |
Collapse
|
2
|
Romanelli G, Capuani S, Onorati D, Ulpiani P, Preziosi E, Andreani C, Senesi R. Fluorinated borono-phenylalanine for optimizing BNCT: Enhancing boron absorption against hydrogen scattering for thermal neutrons. Med Phys 2024; 51:439-446. [PMID: 37956252 DOI: 10.1002/mp.16802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 06/14/2023] [Accepted: 07/16/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND Boron-containing compounds, such as 4-borono-phenylalanine (BPA) are used as drugs for cancer treatment in the framework of Boron Neutron Capture Therapy (BNCT). Neutron irradiation of boron-rich compounds delivered to cancer cells triggers nuclear reactions that destroy cancer cells. PURPOSE We provide a modeling of the thermal neutron cross section of BPA, a drug used in Boron Neutron Capture Therapy (BNCT), to quantify the competing contributions of boron absorption against hydrogen scattering, for optimizing BNCT by minimizing the latter. METHODS We perform the experimental determination of the total neutron scattering cross section of BPA at thermal and epithermal neutron energies using neutron transmission measurements. We isolate the contribution related to the incoherent scattering by hydrogen atoms as a function of the neutron energy by means of the Average Functional Group Approximation, and we calculate the probability for a neutron of being absorbed as a function of the neutron energy both for BPA and for its variants where either one or all four aromatic hydrogen atoms are substituted by 19 F, and both for the samples with natural occurrence or enriched concentration of 10 B. RESULTS While referring to the already available literature for in vivo use of fluorinated BPA, we show that fluorine-rich variants of BPA increase the probability of neutrons being captured by the molecule. As the higher absorption efficiency of fluorinated BPA does not depend on whether the molecule is used in vivo or not, our results are promising for the higher efficiency of the boron neutron capture treatment. CONCLUSIONS Our results suggest a new advantage using fluorinated compounds for BNCT, in their optimized interaction with neutrons, in addition to their already known capability to be used for monitoring and pharmacokinetics studies using 19 F-Nuclear Magnetic Resonance or in 18 F-Positron Emission Tomography.
Collapse
Affiliation(s)
- Giovanni Romanelli
- Dipartimento di Fisica and NAST Centre, Università degli Studi di Roma "Tor Vergata", Rome, Italy
| | - Silvia Capuani
- National Research Council, Institute for Complex Systems (ISC), Rome, Italy
| | - Dalila Onorati
- Dipartimento di Fisica and NAST Centre, Università degli Studi di Roma "Tor Vergata", Rome, Italy
| | - Pierfrancesco Ulpiani
- Dipartimento di Scienze e Tecnologie Chimiche, Università degli Studi di Roma "Tor Vergata", Rome, Italy
| | - Enrico Preziosi
- Dipartimento di Fisica and NAST Centre, Università degli Studi di Roma "Tor Vergata", Rome, Italy
| | - Carla Andreani
- Dipartimento di Fisica and NAST Centre, Università degli Studi di Roma "Tor Vergata", Rome, Italy
- National Research Council, Institute of Polymers, Composites and Biomaterials (IPCB), Naples, Italy
| | - Roberto Senesi
- Dipartimento di Fisica and NAST Centre, Università degli Studi di Roma "Tor Vergata", Rome, Italy
| |
Collapse
|
3
|
Mo Y, Huang C, Liu C, Duan Z, Liu J, Wu D. Recent Research Progress of 19 F Magnetic Resonance Imaging Probes: Principle, Design, and Their Application. Macromol Rapid Commun 2023; 44:e2200744. [PMID: 36512446 DOI: 10.1002/marc.202200744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/28/2022] [Indexed: 12/15/2022]
Abstract
Visualization of biomolecules, cells, and tissues, as well as metabolic processes in vivo is significant for studying the associated biological activities. Fluorine magnetic resonance imaging (19 F MRI) holds potential among various imaging technologies thanks to its negligible background signal and deep tissue penetration in vivo. To achieve detection on the targets with high resolution and accuracy, requirements of high-performance 19 F MRI probes are demanding. An ideal 19 F MRI probe is thought to have, first, fluorine tags with magnetically equivalent 19 F nuclei, second, high fluorine content, third, adequate fluorine nuclei mobility, as well as excellent water solubility or dispersity, but not limited to. This review summarizes the research progresses of 19 F MRI probes and mainly discusses the impacts of structures on in vitro and in vivo imaging performances. Additionally, the applications of 19 F MRI probes in ions sensing, molecular structures analysis, cells tracking, and in vivo diagnosis of disease lesions are also covered in this article. From authors' perspectives, this review is able to provide inspirations for relevant researchers on designing and synthesizing advanced 19 F MRI probes.
Collapse
Affiliation(s)
- Yongyi Mo
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Gongchang Road 66, Guangming, Shenzhen, Guangdong, 518107, China
| | - Chixiang Huang
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Gongchang Road 66, Guangming, Shenzhen, Guangdong, 518107, China
| | - Changjiang Liu
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Gongchang Road 66, Guangming, Shenzhen, Guangdong, 518107, China
| | - Ziwei Duan
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Gongchang Road 66, Guangming, Shenzhen, Guangdong, 518107, China
| | - Juan Liu
- School of Pharmaceutical Sciences, Shenzhen Campus of Sun Yat-sen University, Gongchang Road 66, Guangming, Shenzhen, Guangdong, 518107, China
| | - Dalin Wu
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Gongchang Road 66, Guangming, Shenzhen, Guangdong, 518107, China
| |
Collapse
|
4
|
Tang X, Li A, Zuo C, Liu X, Luo X, Chen L, Li L, Lin H, Gao J. Water-Soluble Chemically Precise Fluorinated Molecular Clusters for Interference-Free Multiplex 19F MRI in Living Mice. ACS NANO 2023; 17:5014-5024. [PMID: 36862135 DOI: 10.1021/acsnano.2c12793] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Fluorine-19 magnetic resonance imaging (19F MRI) is gaining widespread interest from the fields of biomolecule detection, cell tracking, and diagnosis, benefiting from its negligible background, deep tissue penetration, and multispectral capacity. However, a wide range of 19F MRI probes are in great demand for the development of multispectral 19F MRI due to the limited number of high-performance 19F MRI probes. Herein, we report a type of water-soluble molecular 19F MRI nanoprobe by conjugating fluorine-containing moieties with a polyhedral oligomeric silsesquioxane (POSS) cluster for multispectral color-coded 19F MRI. These chemically precise fluorinated molecular clusters are of excellent aqueous solubility with relatively high 19F contents and of single 19F resonance frequency with suitable longitudinal and transverse relaxation times for high-performance 19F MRI. We construct three POSS-based molecular nanoprobes with distinct 19F chemical shifts at -71.91, -123.23, and -60.18 ppm and achieve interference-free multispectral color-coded 19F MRI of labeled cells in vitro and in vivo. Moreover, in vivo 19F MRI reveals that these molecular nanoprobes could selectively accumulate in tumors and undergo rapid renal clearance afterward, illustrating their favorable in vivo behavior for biomedical applications. This study provides an efficient strategy to expand the 19F probe libraries for multispectral 19F MRI in biomedical research.
Collapse
Affiliation(s)
- Xiaoxue Tang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Fujian Provincial Key Laboratory of Chemical Biology, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Renji Medical Research Center, Chengdu Second People's Hospital, Chengdu 610011, China
| | - Ao Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Fujian Provincial Key Laboratory of Chemical Biology, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Cuicui Zuo
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Fujian Provincial Key Laboratory of Chemical Biology, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xing Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Fujian Provincial Key Laboratory of Chemical Biology, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xiangjie Luo
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Fujian Provincial Key Laboratory of Chemical Biology, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Limin Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Fujian Provincial Key Laboratory of Chemical Biology, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Lingxuan Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Fujian Provincial Key Laboratory of Chemical Biology, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Hongyu Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Fujian Provincial Key Laboratory of Chemical Biology, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jinhao Gao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Fujian Provincial Key Laboratory of Chemical Biology, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| |
Collapse
|
5
|
Zhu L, Li Y, Jiang M, Ke C, Long H, Qiu M, Zhang L, Ye C, Zhou X, Jiang ZX, Chen S. Self-Assembly of Precisely Fluorinated Albumin for Dual Imaging-Guided Synergistic Chemo-Photothermal-Photodynamic Cancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2023; 15:2665-2678. [PMID: 36604154 DOI: 10.1021/acsami.2c19161] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Although albumin has been extensively used in nanomedicine, it is still challenging to fluorinate albumin into fluorine-19 magnetic resonance imaging (19F MRI)-traceable theranostics because existing strategies lead to severe 19F signal splitting, line broadening, and low 19F MRI sensitivity. To this end, 34-cysteine-selectively fluorinated bovine serum albumins (BSAs) with a sharp singlet 19F peak have been developed as 19F MRI-sensitive and self-assembled frameworks for cancer theranostics. It was found that fluorinated albumin with a non-binding fluorocarbon and a long linker is crucial for avoiding 19F signal splitting and line broadening. With the fluorinated BSAs, paclitaxel (PTX) and IR-780 were self-assembled into stable, monodisperse, and multifunctional nanoparticles in a framework-promoted self-emulsion way. The high tumor accumulation, efficient cancer cell uptake, and laser-triggered PTX sharp release of the BSA nanoparticles enabled 19F MRI-near infrared fluorescence imaging (NIR FLI)-guided synergistic chemotherapy (Chemo), photothermal and photodynamic therapy of xenograft MCF-7 cancer with a high therapeutical index in mice. This study developed a rational synthesis of 19F MRI-sensitive albumin and a framework-promoted self-emulsion of multifunctional BSA nanoparticles, which would promote the development of protein-based high-performance biomaterials for imaging, diagnosis, therapy, and beyond.
Collapse
Affiliation(s)
- Lijun Zhu
- School of Pharmaceutical Sciences, Wuhan University, Wuhan430071, China
| | - Yu Li
- Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan430071, China
| | - Mou Jiang
- Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan430071, China
| | - Changsheng Ke
- School of Pharmaceutical Sciences, Wuhan University, Wuhan430071, China
| | - Hanxiong Long
- School of Pharmaceutical Sciences, Wuhan University, Wuhan430071, China
| | - Maosong Qiu
- Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan430071, China
| | - Lei Zhang
- Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan430071, China
| | - Chaohui Ye
- Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan430071, China
| | - Xin Zhou
- Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan430071, China
| | - Zhong-Xing Jiang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan430071, China
- University of Chinese Academy of Sciences, Beijing100049, China
| | - Shizhen Chen
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan430071, China
- University of Chinese Academy of Sciences, Beijing100049, China
| |
Collapse
|
6
|
In Vitro Models of Biological Barriers for Nanomedical Research. Int J Mol Sci 2022; 23:ijms23168910. [PMID: 36012181 PMCID: PMC9408841 DOI: 10.3390/ijms23168910] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/06/2022] [Accepted: 08/08/2022] [Indexed: 12/13/2022] Open
Abstract
Nanoconstructs developed for biomedical purposes must overcome diverse biological barriers before reaching the target where playing their therapeutic or diagnostic function. In vivo models are very complex and unsuitable to distinguish the roles plaid by the multiple biological barriers on nanoparticle biodistribution and effect; in addition, they are costly, time-consuming and subject to strict ethical regulation. For these reasons, simplified in vitro models are preferred, at least for the earlier phases of the nanoconstruct development. Many in vitro models have therefore been set up. Each model has its own pros and cons: conventional 2D cell cultures are simple and cost-effective, but the information remains limited to single cells; cell monolayers allow the formation of cell–cell junctions and the assessment of nanoparticle translocation across structured barriers but they lack three-dimensionality; 3D cell culture systems are more appropriate to test in vitro nanoparticle biodistribution but they are static; finally, bioreactors and microfluidic devices can mimicking the physiological flow occurring in vivo thus providing in vitro biological barrier models suitable to reliably assess nanoparticles relocation. In this evolving context, the present review provides an overview of the most representative and performing in vitro models of biological barriers set up for nanomedical research.
Collapse
|
7
|
He H, Zhang X, Du L, Ye M, Lu Y, Xue J, Wu J, Shuai X. Molecular imaging nanoprobes for theranostic applications. Adv Drug Deliv Rev 2022; 186:114320. [PMID: 35526664 DOI: 10.1016/j.addr.2022.114320] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 04/11/2022] [Accepted: 04/30/2022] [Indexed: 12/13/2022]
Abstract
As a non-invasive imaging monitoring method, molecular imaging can provide the location and expression level of disease signature biomolecules in vivo, leading to early diagnosis of relevant diseases, improved treatment strategies, and accurate assessment of treating efficacy. In recent years, a variety of nanosized imaging probes have been developed and intensively investigated in fundamental/translational research and clinical practice. Meanwhile, as an interdisciplinary discipline, this field combines many subjects of chemistry, medicine, biology, radiology, and material science, etc. The successful molecular imaging not only requires advanced imaging equipment, but also the synthesis of efficient imaging probes. However, limited summary has been reported for recent advances of nanoprobes. In this paper, we summarized the recent progress of three common and main types of nanosized molecular imaging probes, including ultrasound (US) imaging nanoprobes, magnetic resonance imaging (MRI) nanoprobes, and computed tomography (CT) imaging nanoprobes. The applications of molecular imaging nanoprobes were discussed in details. Finally, we provided an outlook on the development of next generation molecular imaging nanoprobes.
Collapse
Affiliation(s)
- Haozhe He
- Nanomedicine Research Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China; Department of Pediatrics, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Xindan Zhang
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Lihua Du
- PCFM Lab of Ministry of Education, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510260, China
| | - Minwen Ye
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yonglai Lu
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jiajia Xue
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Jun Wu
- PCFM Lab of Ministry of Education, School of Biomedical Engineering, Sun Yat-sen University, Shenzhen 518107, China.
| | - Xintao Shuai
- Nanomedicine Research Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China; PCFM Lab of Ministry of Education, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510260, China.
| |
Collapse
|
8
|
Nanotechnology as a Versatile Tool for 19F-MRI Agent’s Formulation: A Glimpse into the Use of Perfluorinated and Fluorinated Compounds in Nanoparticles. Pharmaceutics 2022; 14:pharmaceutics14020382. [PMID: 35214114 PMCID: PMC8874484 DOI: 10.3390/pharmaceutics14020382] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/28/2022] [Accepted: 02/02/2022] [Indexed: 02/04/2023] Open
Abstract
Simultaneously being a non-radiative and non-invasive technique makes magnetic resonance imaging (MRI) one of the highly sought imaging techniques for the early diagnosis and treatment of diseases. Despite more than four decades of research on finding a suitable imaging agent from fluorine for clinical applications, it still lingers as a challenge to get the regulatory approval compared to its hydrogen counterpart. The pertinent hurdle is the simultaneous intrinsic hydrophobicity and lipophobicity of fluorine and its derivatives that make them insoluble in any liquids, strongly limiting their application in areas such as targeted delivery. A blossoming technique to circumvent the unfavorable physicochemical characteristics of perfluorocarbon compounds (PFCs) and guarantee a high local concentration of fluorine in the desired body part is to encapsulate them in nanosystems. In this review, we will be emphasizing different types of nanocarrier systems studied to encapsulate various PFCs and fluorinated compounds, headway to be applied as a contrast agent (CA) in fluorine-19 MRI (19F MRI). We would also scrutinize, especially from studies over the last decade, the different types of PFCs and their specific applications and limitations concerning the nanoparticle (NP) system used to encapsulate them. A critical evaluation for future opportunities would be speculated.
Collapse
|
9
|
Wu T, Li A, Chen K, Peng X, Zhang J, Jiang M, Chen S, Zheng X, Zhou X, Jiang ZX. Perfluoro- tert-butanol: a cornerstone for high performance fluorine-19 magnetic resonance imaging. Chem Commun (Camb) 2021; 57:7743-7757. [PMID: 34286714 DOI: 10.1039/d1cc02133h] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
As a versatile quantification and tracking technology, 19F magnetic resonance imaging (19F MRI) provides quantitative "hot-spot" images without ionizing radiation, tissue depth limit, and background interference. However, the lack of suitable imaging agents severely hampers its clinical application. First, because the 19F signals are solely originated from imaging agents, the relatively low sensitivity of MRI technology requires high local 19F concentrations to generate images, which are often beyond the reach of many 19F MRI agents. Second, the peculiar physicochemical properties of many fluorinated compounds usually lead to low 19F signal intensity, tedious formulation, severe organ retention, etc. Therefore, the development of 19F MRI agents with high sensitivity and with suitable physicochemical and biological properties is of great importance. To this end, perfluoro-tert-butanol (PFTB), containing nine equivalent 19F and a modifiable hydroxyl group, has outperformed most perfluorocarbons as a valuable building block for high performance 19F MRI agents. Herein, we summarize the development and application of PFTB-based 19F MRI agents and analyze the strategies to improve their sensitivity and physicochemical and biological properties. In the context of PFC-based 19F MRI agents, we also discuss the challenges and prospects of PFTB-based 19F MRI agents.
Collapse
Affiliation(s)
- Tingjuan Wu
- Group of Lead Compound, Department of Pharmacy, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, Hunan, China.
| | - Anfeng Li
- Group of Lead Compound, Department of Pharmacy, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, Hunan, China.
| | - Kexin Chen
- Group of Lead Compound, Department of Pharmacy, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, Hunan, China.
| | - Xingxing Peng
- Group of Lead Compound, Department of Pharmacy, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, Hunan, China.
| | - Jing Zhang
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China.
| | - Mou Jiang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovative Academy of Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, Wuhan 430071, China.
| | - Shizhen Chen
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovative Academy of Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, Wuhan 430071, China.
| | - Xing Zheng
- Group of Lead Compound, Department of Pharmacy, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, Hunan, China.
| | - Xin Zhou
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovative Academy of Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, Wuhan 430071, China.
| | - Zhong-Xing Jiang
- Group of Lead Compound, Department of Pharmacy, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, Hunan, China. and Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China.
| |
Collapse
|