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Feng L, Hu W, Zeng X, Wei Z, Long Y, Li M, Sun S, Guo Z, Lan X, Zhang X, Zhuang R, Jiang D. Development and Evaluation of DOTA-FAPI-Maleimide as a Novel Radiotracer for Tumor Theranostic with Extended Circulation. Mol Pharm 2024; 21:4386-4394. [PMID: 39046432 DOI: 10.1021/acs.molpharmaceut.4c00327] [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] [Indexed: 07/25/2024]
Abstract
This study aimed to evaluate a novel albumin-binding strategy for addressing the challenge of insufficient tumor retention of fibroblast activation protein inhibitors (FAPIs). Maleimide, a molecule capable of covalent binding to free thiol groups, was modified to conjugate with FAPI-04 in order to enhance its binding to endogenous albumin, resulting in an extended blood circulation half-life and increased tumor uptake. DOTA-FAPI-maleimide was prepared and radiolabeled with Ga-68 and Lu-177, followed by cellular assays, pharmacokinetic analysis, PET/CT, and SPECT/CT imaging to assess the probe distribution in various tumor-bearing models. Radiolabeling of the modified probe was successfully achieved with a radiochemical yield of over 99% and remained stable for 144 h. Cellular assays showed that the ligand concentration required for 50% inhibition of the probe was 1.20 ± 0.31 nM, and the Kd was 0.70 ± 0.07 nM with a Bmax of 7.94 ± 0.16 fmol/cell, indicative of higher specificity and affinity of DOTA-FAPI-maleimide compared to other FAPI-04 variants. In addition, DOTA-FAPI-maleimide exhibited a persistent blood clearance half-life of 7.11 ± 0.34 h. PET/CT images showed a tumor uptake of 2.20 ± 0.44%ID/g at 0.5 h p.i., with a tumor/muscle ratio of 5.64 in HT-1080-FAP tumor-bearing models. SPECT/CT images demonstrated long-lasting tumor retention. At 24 h p.i., the tumor uptake of [177Lu]Lu-DOTA-FAPI-maleimide reached 5.04 ± 1.67%ID/g, with stable tumor retention of 3.40 ± 1.95%ID/g after 4 days p.i. In conclusion, we developed and evaluated the thiol group-attaching strategy, which significantly extended the circulation and tumor retention of the adapted FAPI tracer. We envision its potential application for clinical cancer theranostics.
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Affiliation(s)
- Lixia Feng
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Road, Xiamen 361102, China
| | - Wenzhu Hu
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Xinying Zeng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Road, Xiamen 361102, China
| | - Zheng Wei
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yu Long
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
- Department of Nuclear Medicine, The Second Xiangya Hospital, Central South University, No. 139, Renmin Road Central, Changsha, Hunan 410011, China
| | - Mengting Li
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Si Sun
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zhide Guo
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Road, Xiamen 361102, China
| | - Xiaoli Lan
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Xianzhong Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Road, Xiamen 361102, China
| | - Rongqiang Zhuang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Road, Xiamen 361102, China
| | - Dawei Jiang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
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Abdallah M, Lin L, Styles IK, Mörsdorf A, Grace JL, Gracia G, Landersdorfer CB, Nowell CJ, Quinn JF, Whittaker MR, Trevaskis NL. Impact of conjugation to different lipids on the lymphatic uptake and biodistribution of brush PEG polymers. J Control Release 2024; 369:146-162. [PMID: 38513730 DOI: 10.1016/j.jconrel.2024.03.032] [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: 01/03/2024] [Revised: 02/28/2024] [Accepted: 03/16/2024] [Indexed: 03/23/2024]
Abstract
Delivery to peripheral lymphatics can be achieved following interstitial administration of nano-sized delivery systems (nanoparticles, liposomes, dendrimers etc) or molecules that hitchhike on endogenous nano-sized carriers (such as albumin). The published work concerning the hitchhiking approach has mostly focussed on the lymphatic uptake of vaccines conjugated directly to albumin binding moieties (ABMs such as lipids, Evans blue dye derivatives or peptides) and their subsequent trafficking into draining lymph nodes. The mechanisms underpinning access and transport of these constructs into lymph fluid, including potential interaction with other endogenous nanocarriers such as lipoproteins, have largely been ignored. Recently, we described a series of brush polyethylene glycol (PEG) polymers containing end terminal short-chain or medium-chain hydrocarbon tails (1C2 or 1C12, respectively), cholesterol moiety (Cho), or medium-chain or long-chain diacylglycerols (2C12 or 2C18, respectively). We evaluated the association of these materials with albumin and lipoprotein in rat plasma, and their intravenous (IV) and subcutaneous (SC) pharmacokinetic profiles. Here we fully detail the association of this suite of polymers with albumin and lipoproteins in rat lymph, which is expected to facilitate lymph transport of the materials from the SC injection site. Additionally, we characterise the thoracic lymph uptake, tissue and lymph node biodistribution of the lipidated brush PEG polymers following SC administration to thoracic lymph cannulated rats. All polymers had moderate lymphatic uptake in rats following SC dosing with the lymph uptake higher for 1C2-PEG, 2C12-PEG and 2C18-PEG (5.8%, 5.9% and 6.7% dose in lymph, respectively) compared with 1C12-PEG and Cho-PEG (both 1.5% dose in lymph). The enhanced lymph uptake of 1C2-PEG, 2C12-PEG and 2C18-PEG appeared related to their association profile with different lipoproteins. The five polymers displayed different biodistribution patterns in major organs and tissues in mice. All polymers reached immune cells deep within the inguinal lymph nodes of mice following SC dosing. The ability to access these immune cells suggests the potential of the polymers as platforms for the delivery of vaccines and immunotherapies. Future studies will focus on evaluating the lymphatic targeting and therapeutic potential of drug or vaccine-loaded polymers in pre-clinical disease models.
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Affiliation(s)
- Mohammad Abdallah
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Lihuan Lin
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Ian K Styles
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Alexander Mörsdorf
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - James L Grace
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Gracia Gracia
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Cornelia B Landersdorfer
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Cameron J Nowell
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Parkville, Victoria, Australia
| | - John F Quinn
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia; Department of Chemical Engineering, Faculty of Engineering, Monash University, Clayton, VIC, Australia
| | - Michael R Whittaker
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia.
| | - Natalie L Trevaskis
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia; Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.
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Wen X, Zeng X, Liu J, Zeng X, Zhang Y, Cheng X, Huang J, Li Y, Zhuang R, Zhang X, Guo Z. In Vivo Comparative Study of Radioiodinated Folate Receptor Targeting Albumin Probes for Atherosclerosis Plaque Imaging. Bioconjug Chem 2023; 34:2387-2397. [PMID: 38055912 DOI: 10.1021/acs.bioconjchem.3c00486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
The objective of this study is to compare a series of albumin-based folate radiotracers for the potential imaging of folate receptor (FR) positive macrophages in advanced atherosclerotic plaques. Diversified radioiodinated FR-targeting albumin-binding probes ([131I]IBAbHF, [131I]IBNHF, and [131I]HF) were developed through various strategies. Among the three radiotracers, [131I]IBAbHF and [131I]IBNHF showed excellent in vitro stability (>98%) in saline and PBS 7.4 for 24 h. Also, good stability of [131I]IBNHF in mouse serum albumin was monitored using an HSA ELISA kit. The experiments in Raw264.7 macrophages activated by ox-LDL confirmed the specificity of tracers for FR-β. Biodistribution studies of radiotracers were performed to verify the prolonged blood half-life. Prolonged blood half-lives of [131I]IBAbHF, [131I]HF, and [131I]IBNHF were 17.26 ± 4.29, 6.33 ± 2.64, and 5.50 ± 1.26 h, respectively. SPECT-CT imaging of ApoE-/- mice at different stages was performed to evaluate the progression and monitor the prognosis of AS. Evident [131I]IBNHF uptake in atherosclerotic lesions could be observed along with a low background signal. In summary, we demonstrated a proof-of-concept of albumin-based radioligands for FR-targeting atherosclerosis imaging and found that different incorporation of radioiodinated groups resulted in different pharmacokinetic properties. Among these candidate compounds, [131I]IBNHF would be a satisfactory radiotracer for SPECT imaging of atherosclerosis.
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Affiliation(s)
- Xuejun Wen
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Xueyuan Zeng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Jia Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Xinying Zeng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Yiren Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Xingxing Cheng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Jinxiong Huang
- Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Hospital, the First Affiliated Hospital of Xiamen University, Xiamen 361003, China
| | - Yesen Li
- Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Hospital, the First Affiliated Hospital of Xiamen University, Xiamen 361003, China
| | - Rongqiang Zhuang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Xianzhong Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Zhide Guo
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
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Feng L, Fang J, Zeng X, Liu H, Zhang J, Huang L, Guo Z, Zhuang R, Zhang X. 68Ga-Labeled Maleimide for Blood Pool and Lymph PET Imaging through Covalent Bonding to Serum Albumin In Vivo. ACS OMEGA 2022; 7:28597-28604. [PMID: 35990434 PMCID: PMC9386703 DOI: 10.1021/acsomega.2c03505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
This study aims to develop a novel 68Ga-labeled tracer, which can covalently bind to albumin in vivo based on the maleimide-thiol strategy, and to evaluate its potential applications using positron emission tomography (PET). 68Ga-labeled maleimide-monoamide-DOTA (denoted as [68Ga]Ga-DM) was prepared conveniently with a high radiochemical yield (>90%) and radiochemical purity (>99%). Its molar activity was calculated as 249.60 ± 68.50 GBq/μmol, and the octanol-water partition coefficient (LogP) was -3.15 ± 0.08 with good stabilities. In vitro experiments showed that [68Ga]Ga-DM can bind to albumin efficiently and rapidly, with a binding fraction of over 70%. High uptake and excellent retention in blood were observed with a long half-life (t 1/2Z) of 190.15 ± 24.14 min, which makes it possible for blood pool PET imaging with high contrast. The transient micro-bleeding in the rat model was detected successfully with PET imaging. In addition, the uptakes of [68Ga]Ga-DM in the inflammatory popliteal lymph nodes depend on the severity (5.90% ID/g and 2.32% ID/g vs 1.01% ID/g for healthy lymph nodes at 0.5 h post-injection) indicating its feasibility for lymphatic imaging. In conclusion, a novel 68Ga-labeled tracer was prepared with high efficiency and yield in mild conditions. Based on the promising properties of bonding covalently to albumin, great stability, high blood contrast with a long half-life, and well environmental tolerance, [68Ga]Ga-DM could be developed as a potential tracer for PET imaging of blood pool, bleeding, and vascular permeability alteration diseases in the clinic.
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Meng L, Fang J, Zhao L, Wang T, Yuan P, Zhao Z, Zhuang R, Lin Q, Chen H, Chen X, Zhang X, Guo Z. Rational Design and Pharmacomodulation of Protein-Binding Theranostic Radioligands for Targeting the Fibroblast Activation Protein. J Med Chem 2022; 65:8245-8257. [PMID: 35658448 DOI: 10.1021/acs.jmedchem.1c02162] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The fibroblast activation protein (FAP), overexpressed on cancer-associated fibroblasts (CAFs), has become a valuable target for tumor diagnosis and therapy. However, most FAP-based radioligands show insufficient tumor uptake and retention. In this study, three novel albumin-binding FAP ligands (denoted as FSDD0I, FSDD1I, and FSDD3I) were labeled with 68Ga and 177Lu to overcome these limitations. Cell-based studies and molecular docking assays were performed to identify the specificity and protein-binding properties for FAP. Positron emission tomography (PET) scans in human hepatocellular carcinoma patient-derived xenografts (HCC-PDXs) animal models revealed longer blood retention of 68Ga-FSDD0I than 68Ga-FAPI-04, 68Ga-FSDD1I, and 68Ga-FSDD3I. Remarkably, 68Ga-FSDD3I had prominent tumor-to-nontarget (T/NT) ratios. The prominent tumor retention properties of 177Lu-FSDD0I in single photon emission computed tomography (SPECT) imaging and biodistribution studies were demonstrated. In summary, this study reports a proof-of-concept study of albumin-binding radioligands for FAP-targeted imaging and targeted radionuclide therapy (TRT).
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Affiliation(s)
- Lingxin Meng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Jianyang Fang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Liang Zhao
- Department of Nuclear Medicine & Minnan PET Center, The First Affiliated Hospital of Xiamen University, Xiamen 361003, China.,Department of Radiation Oncology, The First Affiliated Hospital of Xiamen University, Xiamen 361003, China
| | - Tingting Wang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Pu Yuan
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Zuoquan Zhao
- Department of Nuclear Medicine, Cardiovascular Institute and FuWai Hospital, Chinese Academy of Medical Sciences, Beijing 100037, China
| | - Rongqiang Zhuang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Qin Lin
- Department of Radiation Oncology, The First Affiliated Hospital of Xiamen University, Xiamen 361003, China
| | - Haojun Chen
- Department of Nuclear Medicine & Minnan PET Center, The First Affiliated Hospital of Xiamen University, Xiamen 361003, China
| | - Xiaoyuan Chen
- Departments of Diagnostic Radiology, Surgery, Chemical and Biomolecular Engineering, and Biomedical Engineering, Yong Loo Lin School of Medicine and Faculty of Engineering, National University of Singapore, Singapore 119074, Singapore.,Clinical Imaging Research Centre, Centre for Translational Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117599, Singapore.,Nanomedicine Translational Research Program, NUS Center for Nanomedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Xianzhong Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Zhide Guo
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
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Wen X, Zeng X, Cheng X, Zeng X, Liu J, Zhang Y, Li Y, Chen H, Huang J, Guo Z, Chen X, Zhang X. PD-L1-Targeted Radionuclide Therapy Combined with αPD-L1 Antibody Immunotherapy Synergistically Improves the Antitumor Effect. Mol Pharm 2022; 19:3612-3622. [PMID: 35652897 DOI: 10.1021/acs.molpharmaceut.2c00281] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Immune checkpoint blockers (ICBs) targeting programmed death receptor 1 (PD-1) ligand 1 (PD-L1) for immunotherapy have radically reformed oncology. It is of great significance to enhance the response rate of ICB in cancer patients. Here, a radioiodinated anti-PD-L1 antibody (131I-αPD-L1) was developed for PD-L1-targeted single-photon emission computed tomography (SPECT) imaging and αPD-L1 immunotherapy. Flow cytometry and immunofluorescence staining were performed to identify PD-L1 upregulation in a time- and dose-dependent manner after being induced by 131I-αPD-L1. ImmunoSPECT imaging and biodistributions of 131I-αPD-L1 in CT26, MC38, 4T1, and B16F10 tumor models were conducted to visualize the high tumor uptake and low background signal. Compared to monotherapy alone, concurrent administration of αPD-L1 mAb and 131I-αPD-L1 revealed improved tumor control in murine tumor models. The combination of 11.1 MBq of 131I-αPD-L1 and 200 μg of αPD-L1 mAb resulted in significant tumor growth delay and prolonged survival. This radioligand synergized immunotherapy strategy holds great potential for cancer management.
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Affiliation(s)
- Xuejun Wen
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Xueyuan Zeng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Xingxing Cheng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Xinying Zeng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Jia Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Yiren Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Yesen Li
- Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, Xiamen 361003, China
| | - Haojun Chen
- Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, Xiamen 361003, China
| | - Jinxiong Huang
- Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, Xiamen 361003, China
| | - Zhide Guo
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Xiaoyuan Chen
- Departments of Diagnostic Radiology and Surgery, Yong Loo Lin School of Medicine and Faculty of Engineering, National University of Singapore, Singapore 119074, Singapore.,Nanomedicine Translational Research Program, NUS Center for Nanomedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore.,Clinical Imaging Research Centre, Centre for Translational Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117599, Singapore.,Departments of Chemical and Biomolecular Engineering, and Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore 119074, Singapore
| | - Xianzhong Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
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Lu D, Yu L, Chen Z, Chen M, Lei Z, Guo H, Wang X, Zhang Y, Xu T, Wang H, Zhou X, Ju S, Teng G. A Simple and Efficient Embolization-Combined Therapy for Solid Tumors by Smart Poly(amino acid)s Nanocomposites. ACS APPLIED BIO MATERIALS 2022; 5:661-674. [PMID: 35135191 DOI: 10.1021/acsabm.1c01106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Interventional embolization and minimally invasive thermal ablation are common clinical methods for treatment of unresectable solid tumors, but they both have many insurmountable disadvantages. Inspired by pH-responsive drug delivery systems, we report the tumor microenvironment-gelled nanocomposites with poly[(l-glutamic acid-ran-l-tyrosine)-b-l-threonine-b-l-cysteine]s (PGTTCs) coating nanoparticles (NPs, Au or Fe3O4) for noninterventional targeted embolization combined with noninvasive thermal ablation therapy of solid tumors by intravenous injection without catheter use. The results of the animal trial in vivo with tumor-bearing mice and rabbits showed superior targeted embolization and therapy and fluorescence/single-photon emission computed tomography/magnetic resonance multimodal imaging effects. Tumors treated with NPs@PGTTCs were shrunken and necrotized within 30 days, the long-term survival rate was more than 80%, and the same effects can be achieved within 15 days when combined with thermal ablation. The method is so simple and efficient for many hard-to-treat tumors within an acidic microenvironment, which is not only a great improvement and innovation in tumor theranostics but also an important development in nanomedicine.
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Affiliation(s)
- Dedai Lu
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco-environmental Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Lili Yu
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco-environmental Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Zhengpeng Chen
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco-environmental Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Mingshu Chen
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco-environmental Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Ziqiang Lei
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco-environmental Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Hongyun Guo
- Institute of Gansu Medical Science Research, Gansu Provincial Cancer Hospital, Lanzhou 730050, China
| | - Xingdong Wang
- Institute of Gansu Medical Science Research, Gansu Provincial Cancer Hospital, Lanzhou 730050, China
| | - Yongdong Zhang
- Institute of Gansu Medical Science Research, Gansu Provincial Cancer Hospital, Lanzhou 730050, China
| | - Tingting Xu
- Southeast University Zhongda Hospital, Jiangsu Key Laboratory of Molecular Imaging and Functional Imaging, School of Medicine, Southeast University, Nanjing 210009, China
| | - Haijun Wang
- Gansu Provincial Hospital, Lanzhou 730000, P. R. China
| | - Xing Zhou
- Gansu Provincial Hospital, Lanzhou 730000, P. R. China
| | - Shenghong Ju
- Southeast University Zhongda Hospital, Jiangsu Key Laboratory of Molecular Imaging and Functional Imaging, School of Medicine, Southeast University, Nanjing 210009, China
| | - Gaojun Teng
- Southeast University Zhongda Hospital, Jiangsu Key Laboratory of Molecular Imaging and Functional Imaging, School of Medicine, Southeast University, Nanjing 210009, China
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Lu D, Chen M, Yu L, Chen Z, Guo H, Zhang Y, Han Z, Xu T, Wang H, Zhou X, Zhou Z, Teng G. Smart-Polypeptide-Coated Mesoporous Fe 3O 4 Nanoparticles: Non-Interventional Target-Embolization/Thermal Ablation and Multimodal Imaging Combination Theranostics for Solid Tumors. NANO LETTERS 2021; 21:10267-10278. [PMID: 34878286 DOI: 10.1021/acs.nanolett.1c03340] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Tumor theranostics hold great potential for personalized medicine in the future, and transcatheter arterial embolization (TAE) is an important clinical treatment for unresectable or hypervascular tumors. In order to break the limitation, simplify the procedure of TAE, and achieve ideal combinatorial theranostic capability, here, a kind of triblock-polypeptide-coated perfluoropentane-loaded mesoporous Fe3O4 nanocomposites (PFP-m-Fe3O4@PGTTCs) were prepared for non-interventional target-embolization, magnetic hyperthermia, and multimodal imaging combination theranostics of solid tumors. The results of systematic animal experiments by H22-tumor-bearing mice and VX2-tumor-bearing rabbits in vivo indicated that PFP-m-Fe3O4@PGTTC-6.3 has specific tumor accumulation and embolization effects. The tumors' growth has been inhibited and the tumors disappeared 4 weeks and ≤15 days post-injection with embolization and magnetic hyperthermia combination therapy, respectively. The results also showed an excellent effect of magnetic resonance/ultrasound/SPECT multimodal imaging. This pH-responsive non-interventional embolization combinatorial theranostics system provides a novel embolization and multifunctional theranostic candidate for solid tumors.
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Affiliation(s)
- Dedai Lu
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco-environmental Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, China
| | - Mingshu Chen
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco-environmental Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, China
| | - Lili Yu
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco-environmental Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, China
| | - Zhengpeng Chen
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco-environmental Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, China
| | - Hongyun Guo
- Institute of Gansu Medical Science Research, Gansu Provincial Cancer Hospital, Lanzhou, 730050, China
| | - Yongdong Zhang
- Institute of Gansu Medical Science Research, Gansu Provincial Cancer Hospital, Lanzhou, 730050, China
| | - Zhiming Han
- Gansu Provincial Hospital, Lanzhou, 730000, China
| | - Tingting Xu
- Zhongda Hospital Southeast University, Jiangsu Key Laboratory of Molecular Imaging and Function Imaging, School of Medicine, Southeast University, Nanjing, 210009, China
| | - Haijun Wang
- Gansu Provincial Hospital, Lanzhou, 730000, China
| | - Xing Zhou
- Gansu Provincial Hospital, Lanzhou, 730000, China
| | - Zubang Zhou
- Gansu Provincial Hospital, Lanzhou, 730000, China
| | - Gaojun Teng
- Zhongda Hospital Southeast University, Jiangsu Key Laboratory of Molecular Imaging and Function Imaging, School of Medicine, Southeast University, Nanjing, 210009, China
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Xu D, Lin X, Zeng X, Wen X, Li J, Li Y, Huang J, Chen X, Guo Z, Zhang X. Radioiodinated 4-( p-Iodophenyl) Butanoic Acid-Modified Estradiol Derivative for ER Targeting SPECT Imaging. Anal Chem 2021; 93:13998-14006. [PMID: 34612624 DOI: 10.1021/acs.analchem.1c03616] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Overexpression of estrogen receptors (ERs) is one of the important characteristics of most breast cancers. We aim to develop a new type of ER-specific radioiodine-labeled estrogen derivative ([131I]IPBA-EE), which was modified with an albumin-specific ligand 4-(p-iodophenyl) butyric acid (IPBA) to improve the metabolic stability and enhance the ER-targeting ability of estrogen. [131I]IPBA-EE can effectively bind to albumin in vitro, and its dissociation constant (Kd = 0.31 μM) is similar to IPBA (Kd = 0.30 μM). The uptake of [131I]IPBA-EE in ER-positive MCF-7 cells (41.81 ± 3.41%) was significantly higher than that in ER-negative MDA-MB-231 cells (8.78 ± 2.37%, ***P < 0.0005) and could be significantly blocked (3.92 ± 0.35%, ***P < 0.0005). The uptakes of [131I]IPBA-EE in rat uterus and ovaries were 5.66 ± 0.34% ID/g and 5.71 ± 2.77% ID/g, respectively, at 1 h p.i., and these uptakes could be blocked by estradiol (uterus: 2.81 ± 0.41% ID/g, *P < 0.05; ovarian: 3.02 ± 0.08% ID/g, *P < 0.05). SPECT/CT imaging showed that ER-positive MCF-7 tumor uptake of [131I]IPBA-EE reached to 6.07 ± 0.20% ID/g at 7 h p.i., which was significantly higher than that of ER-negative MDA-MB-231 tumor (0.87 ± 0.08% ID/g, **P < 0.005) and could be blocked obviously with fulvestrant (1.65 ± 1.56% ID/g, *P < 0.05). In conclusion, a novel radioiodinated estradiol derivative, [131I]IPBA-EE with albumin-binding property and good metabolic stability, was developed to image the ER in breast cancer. This promising ER-targeted probe has the potential to warrant further preclinical investigations.
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Affiliation(s)
- Duo Xu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'an South Rd, Xiamen 361102, China.,Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000 Guangdong Province, China
| | - Xiaoru Lin
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'an South Rd, Xiamen 361102, China
| | - Xinying Zeng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'an South Rd, Xiamen 361102, China
| | - Xuejun Wen
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'an South Rd, Xiamen 361102, China
| | - Jingchao Li
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'an South Rd, Xiamen 361102, China
| | - Yesen Li
- The First Affiliated Hospital of Xiamen University, Zhenhai Road, Xiamen 361003, China
| | - Jinxiong Huang
- The First Affiliated Hospital of Xiamen University, Zhenhai Road, Xiamen 361003, China
| | - Xiaoyuan Chen
- Yong Loo Lin School of Medicine and Faculty of Engineering, National University of Singapore, 1E Kent Ridge Road, Singapore 119228, Singapore
| | - Zhide Guo
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'an South Rd, Xiamen 361102, China
| | - Xianzhong Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'an South Rd, Xiamen 361102, China
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10
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Wen X, Shi C, Yang L, Zeng X, Lin X, Huang J, Li Y, Zhuang R, Zhu H, Guo Z, Zhang X. A radioiodinated FR-β-targeted tracer with improved pharmacokinetics through modification with an albumin binder for imaging of macrophages in AS and NAFL. Eur J Nucl Med Mol Imaging 2021; 49:503-516. [PMID: 34155537 DOI: 10.1007/s00259-021-05447-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 06/03/2021] [Indexed: 02/07/2023]
Abstract
PURPOSE The formation of advanced plaques, which is characterized by the uninterrupted aggregation of macrophages with high expression of folate receptor-β (FR-β), is observed in several concomitant metabolic syndromes. The objective of this study was to develop a novel FR-β-targeted single-photon emission computed tomography (SPECT) radiotracer and validate its application to the noninvasive detection of atherosclerosis (AS) plaque and non-alcoholic fatty liver (NAFL). METHODS Two radioiodinated probes, [131I]IPBF and [131I]IBF, were developed, and cell uptake studies were used to identify their specific targets for activated macrophages. Biodistribution in normal mice was performed to obtain the pharmacokinetic information of the probes. Apolipoprotein E knockout (ApoE-/-) mice with atherosclerotic aortas were induced by a high-fat and high-cholesterol (HFHC) diet. To investigate the affinity of radiotracers to FR-β, Kd values were determined using in vitro assays. In addition, the assessments of the aorta in the ApoE-/- mice at different stages were performed using in vivo SPECT/CT imaging, and the findings were compared by histology. RESULTS Both [131I]IPBF and [131I]IBF were synthesized with > 95% radiochemical purity and up to 3 MBq/nmol molar activity. In vitro assay of [131I]IPBF showed a moderate binding affinity to plasma proteins and specific uptake in activated macrophages. The prolonged blood elimination half-life (t1/2z) of [131I]IPBF (8.14 h) was observed in a pharmacokinetic study of normal mice, which was significantly longer than that of [131I]IBF (t1/2z = 2.95 h). As expected, the Kd values of [131I]IPBF and [131I]IBF in the Raw 264.7 cells were 43.94 ± 9.83 nM and 61.69 ± 15.19 nM, respectively. SPECT imaging with [131I]IPBF showed a high uptake in advanced plaques and NAFL. Radioactivity in excised aortas examined by ex vivo autoradiography further confirmed the specific uptake of [131I]IPBF in high-risk AS plaques. CONCLUSIONS In summary, we reported a proof-of-concept study of an albumin-binding folate derivative for macrophage imaging. The FR-β-targeted probe, [131I]IPBF, significantly prolongs the plasma elimination half-life and has the potential for the monitoring of AS plaques and concomitant fatty liver.
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Affiliation(s)
- Xuejun Wen
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen, 361102, China
| | - Changrong Shi
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen, 361102, China
| | - Liu Yang
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing, Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Xinying Zeng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen, 361102, China
| | - Xiaoru Lin
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen, 361102, China
| | - Jinxiong Huang
- Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, 361003, China
| | - Yesen Li
- Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, 361003, China
| | - Rongqiang Zhuang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen, 361102, China
| | - Haibo Zhu
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing, Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Zhide Guo
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen, 361102, China.
| | - Xianzhong Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen, 361102, China.
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11
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Knaup FH, Meyners C, Charalampidou A, Krajczy P, Purder PL, Ross T, Hausch F. Med Chem Remote: The Frontiers in Medicinal Chemistry 2021. ChemMedChem 2021; 16:2411-2416. [PMID: 34101362 DOI: 10.1002/cmdc.202100355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Indexed: 12/21/2022]
Abstract
Digital, but delicious! The Frontiers in Medicinal Chemistry 2021 meeting, originally intended to take place in Darmstadt, carried on as an online event from March 8-10 this year. Even with pandemic restrictions, the event co-presented by the Medicinal Chemistry Division of the German Chemical Society (GDCh), the German Pharmaceutical Society (DPhG), and the Swiss Chemical Society (SCS) proved to be a success, showcasing excellent speakers and facilitating participant interaction in an ingenious virtual setting. Over 350 participants from more than 10 countries gathered to discuss the latest trends and directions in medicinal chemistry, with sessions on molecular glues, covalent fragments, transient binding pockets and more. This report presents a summary of the key lectures and activities at the event.
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Affiliation(s)
- Fabian H Knaup
- Department of Chemistry and Biochemistry, Clemens-Schöpf-Institute, Technical University Darmstadt, Alarich-Weiss Straße 4, 64287, Darmstadt, Germany
| | - Christian Meyners
- Department of Chemistry and Biochemistry, Clemens-Schöpf-Institute, Technical University Darmstadt, Alarich-Weiss Straße 4, 64287, Darmstadt, Germany
| | - Anna Charalampidou
- Department of Chemistry and Biochemistry, Clemens-Schöpf-Institute, Technical University Darmstadt, Alarich-Weiss Straße 4, 64287, Darmstadt, Germany
| | - Patryk Krajczy
- Department of Chemistry and Biochemistry, Clemens-Schöpf-Institute, Technical University Darmstadt, Alarich-Weiss Straße 4, 64287, Darmstadt, Germany
| | - Patrick L Purder
- Department of Chemistry and Biochemistry, Clemens-Schöpf-Institute, Technical University Darmstadt, Alarich-Weiss Straße 4, 64287, Darmstadt, Germany
| | - Tatjana Ross
- Merck Healthcare KGaA, Frankfurter Str. 250, 64293, Darmstadt
| | - Felix Hausch
- Department of Chemistry and Biochemistry, Clemens-Schöpf-Institute, Technical University Darmstadt, Alarich-Weiss Straße 4, 64287, Darmstadt, Germany
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12
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18F-Labelled pyrrolopyrimidines reveal brain leucine-rich repeat kinase 2 expression implicated in Parkinson's disease. Eur J Med Chem 2021; 214:113245. [PMID: 33582389 DOI: 10.1016/j.ejmech.2021.113245] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/22/2021] [Accepted: 01/23/2021] [Indexed: 11/22/2022]
Abstract
18F-Labelled pyrrolopyrimidines were synthesized and evaluated as positron emission tomography (PET) probes to determine leucine-rich repeat kinase 2 (LRRK2) expression in the brain. With pyrrolopyrimidine derivative PF-06447475 as the lead compound, two in vivo-stable 18F-labelled pyrrolopyrimidines ([18F]1 and [18F]2) were synthesized automatically at radiochemical yields 8-10% (non-decay-corrected) with molar activities of 0.95 and 0.5 GBq/μmol, respectively. The measured Kd of 6.90 nM for 1 and 14.27 nM for 2 demonstrated high affinities for LRRK2. The LRRK2 G2019S mice had higher uptakes (P < 0.01) of [18F]1 in the olfactory bulb, striatum, and hippocampus than WT mice during microPET/CT imaging, consistent with immunohistology results of LRRK2 distribution. [11C]CFT microPET/CT imaging demonstrated a lower expression of dopamine transporter in LRRK2 G2019S mice. Parkinson's disease-like deficits in dopamine transporter synthesis and cognitive declines were noticed along with LRRK2 expression increase in the olfactory bulb, striatum, and hippocampus. Therefore, 18F-labelled pyrrolopyrimidines can reflect real-time LRRK2 expression changes implicated in Parkinson's disease, which paves the way for LRRK2-related neurodegenerative precise therapy.
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13
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Lu D, Wang J, Li Y, Zhang Y, Yu L, Xu T, Guo H, Zhang Y, Wang X, Wang X, Teng G, Lei Z. Tumor Noninvasive and Target Embolization Therapy Platform by Intravenous Injection Based on Acidic Microenvironment-Responsive Hyperbranched Poly(amino acid)s. ACS CENTRAL SCIENCE 2020; 6:1977-1986. [PMID: 33274275 PMCID: PMC7706070 DOI: 10.1021/acscentsci.0c00506] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Indexed: 05/05/2023]
Abstract
Transcatheter arterial embolization (TAE) has been widely applied in treatments of unresectable or hypervascular tumors, but the procedure of TAE is complicated possibly brings inherent risks. Here, inspired by pH-responsive drug delivery systems, a new method of noninvasive and target embolization therapy by intravenous injection was developed. This method is based on a type of acidic microenvironment-responsive hyperbranched poly(amino acid) (HPTTG) to avoid using catheterization and real-time image guidance angiography, simplifying the procedure, elevating compliance and general applicability of embolization therapy. The pH value of the sol-to-gel phase transition with decreasing pH of HPTTG was controlled by adjusting the ratio of acidic amino acids in copolymers. The results of the tumor-bearing animal experiment indicate that the HPTTG have an excellent target and embolic ability; they accumulate the most at the tumor site in 8 h postinjection. Blood vessels of the tumors were occluded, and the tumors were inhibited and necrotized in about 20 days. Therefore, it is expected that HPTTG not only can be used as novel embolic materials for efficient noninvasive embolization therapy of many solid tumors but also can be used as a multifunctional platform for combined theranostics, for example, combination with controlled release, thermal ablation, multimodal imaging, synergistic therapy, etc.
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Affiliation(s)
- Dedai Lu
- Key
Laboratory of Eco-Functional Polymer Materials of the Ministry of
Education, Key Laboratory of Eco-Environmental Polymer Materials of
Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Jiachen Wang
- Key
Laboratory of Eco-Functional Polymer Materials of the Ministry of
Education, Key Laboratory of Eco-Environmental Polymer Materials of
Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yunfei Li
- Key
Laboratory of Eco-Functional Polymer Materials of the Ministry of
Education, Key Laboratory of Eco-Environmental Polymer Materials of
Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yongyong Zhang
- Key
Laboratory of Eco-Functional Polymer Materials of the Ministry of
Education, Key Laboratory of Eco-Environmental Polymer Materials of
Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Lili Yu
- Key
Laboratory of Eco-Functional Polymer Materials of the Ministry of
Education, Key Laboratory of Eco-Environmental Polymer Materials of
Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Tingting Xu
- Jiangsu
Key Laboratory of Molecular Imaging and Function Imaging, Department
of Radiology, Zhongda Hospital Southeast
University, School of Medicine, Southeast University, Nanjing 210009, China
| | - Hongyun Guo
- Institute
of Gansu Medical Science Research, Gansu
Provincial Cancer Hospital, Lanzhou 730050, China
| | - Yongdong Zhang
- Institute
of Gansu Medical Science Research, Gansu
Provincial Cancer Hospital, Lanzhou 730050, China
| | - Xingdong Wang
- Institute
of Gansu Medical Science Research, Gansu
Provincial Cancer Hospital, Lanzhou 730050, China
| | - Xiaoqi Wang
- Institute
of Gansu Medical Science Research, Gansu
Provincial Cancer Hospital, Lanzhou 730050, China
| | - Gaojun Teng
- Jiangsu
Key Laboratory of Molecular Imaging and Function Imaging, Department
of Radiology, Zhongda Hospital Southeast
University, School of Medicine, Southeast University, Nanjing 210009, China
| | - Ziqiang Lei
- Key
Laboratory of Eco-Functional Polymer Materials of the Ministry of
Education, Key Laboratory of Eco-Environmental Polymer Materials of
Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
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14
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Wang P, Sun W, Guo J, Zhang K, Liu Y, Jiang Q, Su D, Sun X. One pot synthesis of zwitteronic 99mTc doped ultrasmall iron oxide nanoparticles for SPECT/T1-weighted MR dual-modality tumor imaging. Colloids Surf B Biointerfaces 2020; 197:111403. [PMID: 33099146 DOI: 10.1016/j.colsurfb.2020.111403] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/29/2020] [Accepted: 10/03/2020] [Indexed: 10/23/2022]
Abstract
In this study, we have synthesized 99mTc intrinsically labeled ultrasmall magnetic iron oxide nanoparticles with zwitterionic surface coating (99mTc-ZW-USIONPs) via one pot synthesis using sulfobetains functionalized poly (acrylic acid) as stabilizer and Na99mTcO4 and SnCl2 as additives. The commercialization of single photon emission computed tomography (SPECT)/magnetic resonance imaging (MRI) scanner made the combination use of 99mTc and iron oxide nanoparticles attracting much attention. Direct doping radioisotope into nanoparticles has the advantages of excellent radiochemical stability and no restriction on the surface functionalization. The complex Technetium chemistry made it challenging to direct dope 99mTc into IONPs, especially those ultrasmall ones without precipitation. We proved that it is possible to prepare 99mTc doped USIONPs with excellent water solubility and favorable T1 signal by controlling the radioactivity and reducing agent amount. With no need of chelator, the zwitterionic surface resists the protein corona formation, resulting in a reduced RES uptake and higher tumor contrast. The 99mTc-ZW-USIONPs demonstrated excellent performance of tumor SPECT and T1-weighted MR imaging capability in 4T1 tumor bearing mice. Together with their ease of preparation and superior biocompatibility, we believe these 99mTc-ZW-USIONPs represent a type of promising dual contrast agent for SPECT/T1 MRI.
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Affiliation(s)
- Peng Wang
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality Control and Pharmacovigilance, Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing 210009, China; Department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital Affiliated to Medical School of Nanjing University, Zhongshan Road 321, Nanjing, 210008, China
| | - Wenjing Sun
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 261005, China
| | - Jingru Guo
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality Control and Pharmacovigilance, Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing 210009, China
| | - Kaijia Zhang
- Department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital Affiliated to Medical School of Nanjing University, Zhongshan Road 321, Nanjing, 210008, China
| | - Yi Liu
- School of Engineering, China Pharmaceutical University, 211198, China
| | - Qing Jiang
- Department of Sports Medicine and Adult Reconstructive Surgery, Drum Tower Hospital Affiliated to Medical School of Nanjing University, Zhongshan Road 321, Nanjing, 210008, China.
| | - Dan Su
- Oncology Department, Zhejiang Provincial People's Hospital, Hangzhou 310014, China.
| | - Xiaolian Sun
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality Control and Pharmacovigilance, Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing 210009, China.
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15
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Abdallah M, Müllertz OO, Styles IK, Mörsdorf A, Quinn JF, Whittaker MR, Trevaskis NL. Lymphatic targeting by albumin-hitchhiking: Applications and optimisation. J Control Release 2020; 327:117-128. [PMID: 32771478 DOI: 10.1016/j.jconrel.2020.07.046] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/27/2020] [Accepted: 07/29/2020] [Indexed: 12/20/2022]
Abstract
The lymphatic system plays an integral role in the development and progression of a range of disease conditions, which has impelled medical researchers and clinicians to design, develop and utilize advanced lymphatic drug delivery systems. Following interstitial administration, most therapeutics and molecules are cleared from tissues via the draining blood capillaries. Macromolecules and delivery systems >20 kDa in size or 10-100 nm in diameter are, however, transported from the interstitium via draining lymphatic vessels as they are too large to cross the blood capillary endothelium. Lymphatic uptake of small molecules can be promoted by two general approaches: administration in association with synthetic macromolecular constructs, or through hitchhiking on endogenous cells or macromolecular carriers that are transported from tissues via the lymphatics. In this paper we review the latter approach where molecules are targeted to lymph by hitchhiking on endogenous albumin transport pathways after subcutaneous, intramuscular or intradermal injection. We describe the properties of the lymphatic system and albumin that are relevant to lymphatic targeting, the characteristics of drugs and delivery systems designed to hitchhike on albumin trafficking pathways and how to further optimise these properties, and finally the current applications and potential future directions for albumin-hitchhiking approaches to target the lymphatics.
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Affiliation(s)
- Mohammad Abdallah
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Australia
| | - Olivia O Müllertz
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Australia; Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ian K Styles
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Australia
| | - Alexander Mörsdorf
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Australia
| | - John F Quinn
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Australia
| | - Michael R Whittaker
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Australia
| | - Natalie L Trevaskis
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Australia.
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16
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Wen X, Shi C, Zhao L, Yao L, Xu D, Lin X, Su X, Liu T, Zhuang R, Lin Q, Chen H, Guo Z, Zhang X. Immuno-SPECT/PET imaging with radioiodinated anti-PD-L1 antibody to evaluate PD-L1 expression in immune-competent murine models and PDX model of lung adenocarcinoma. Nucl Med Biol 2020; 86-87:44-51. [PMID: 32474281 DOI: 10.1016/j.nucmedbio.2020.05.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 04/21/2020] [Accepted: 05/18/2020] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Accurate evaluation of tumor programmed death ligand 1 (PD-L1) expression can assist in predicting whether a patient will respond to anti-PD-L1 therapy. In this study, we aimed to develop stable radioiodinated PD-L1 antibodies that can be used for PD-L1 targeted SPECT/PET imaging. METHODS Radioiodination was accomplished via a prosthetic group ([131I]SIB or [124I]SIB) to give radioiodinated anti-human PD-L1 and anti-mouse PD-L1 antibody (anti-PD-L1 and anti-PD-L1M). MicroSPECT/PET imaging and biodistribution of radioiodinated antibodies were studied in two immune-competent murine models (B16F10 and 4T1 syngeneic tumor models) and patient-derived xenograft (PDX) model of lung adenocarcinoma to evaluate the feasibility of identifying tumor PD-L1 expression. RESULTS Radioiodinated PD-L1 antibodies had high radiochemical purity (>99%) and favorable stability in vivo. There was high uptake of [131I]SIB-anti-PD-L1M in both 4T1 and B16F10 syngeneic tumors when injected with 5.5 MBq radiotracers containing 200 μg anti-mouse-PD-L1. The presence of excess unlabeled anti-PD-L1 antibody increased [131I]SIB-anti-PD-L1M uptake in tumors. The highly specific PD-L1-positive tumor uptake detected by SPECT imaging indicated that radioiodinated antibody could be used for PD-L1 expression imaging. In addition, PET imaging of the PDX model was performed with [124I]SIB-anti-PD-L1, which showed high signal intensity in tumors and optimal contrast between tumor and muscle (tumor-to-muscle ratios at 6 h p.i. and 24 h p.i. were 2.5 and 5.3, respectively). CONCLUSIONS This study provides an efficient strategy for synthesizing stable radioiodinated PD-L1 antibodies with excellent pharmacokinetics to identify PD-L1 expression in tumors.
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Affiliation(s)
- Xuejun Wen
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Changrong Shi
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Liang Zhao
- Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, Xiamen 361103, China; Department of Radiation Oncology, Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, Xiamen 361103, China
| | - Lanlin Yao
- Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, Xiamen 361103, China
| | - Duo Xu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Xiaoru Lin
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Xinhui Su
- Zhongshan Hospital Affiliated to Xiamen University, Hubin South Road, Xiamen 361004, China
| | - Ting Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Rongqiang Zhuang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China
| | - Qin Lin
- Department of Radiation Oncology, Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, Xiamen 361103, China.
| | - Haojun Chen
- Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, Xiamen 361103, China.
| | - Zhide Guo
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China.
| | - Xianzhong Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, 4221-116 Xiang'An South Rd, Xiamen 361102, China.
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Gao F, Peng C, Zhuang R, Guo Z, Liu H, Huang L, Li H, Xu D, Wen X, Fang J, Zhang X. 18F-labeled ethisterone derivative for progesterone receptor targeted PET imaging of breast cancer. Nucl Med Biol 2019; 72-73:62-69. [PMID: 31330414 DOI: 10.1016/j.nucmedbio.2019.07.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 06/11/2019] [Accepted: 07/06/2019] [Indexed: 12/29/2022]
Abstract
PURPOSE A novel radiolabeled probe 1‑(17‑[18F]fluoro‑3,6,9,12,15‑pentaoxaheptadecyl‑1H‑1,2,3‑triazole testosterone ([18F]FPTT) was synthesized and evaluated for PET imaging of progesterone receptor (PR)-positive breast cancer. METHODS The ethinyl group of ethisterone, a PR targeting pharmacophore, was coupled with azide modified PEG-OTs by click chemistry to obtain the labeling precursor. The final [18F]FPTT was synthesized by a one-step nucleophilic substitution reaction with 18F. The in vitro stabilities of [18F]FPTT in saline or rat serum were determined after 2 h incubation. Then the in vitro cell binding, ex vivo biodistribution and in vivo imaging of [18F]FPTT were further investigated to evaluate the PR targeting ability and feasibility for the diagnosis of PR-positive breast cancer with PET imaging. RESULTS [18F]FPTT was obtained in high decay-corrected radiochemical yield (78 ± 9%) at the end of synthesis. It had high radiochemical purity (>98%) after HPLC purification and good in vitro stability. The molar activity of [18F]FPTT was calculated as 17 GBq/μmol. The microPET imaging of [18F]FPTT in tumor-bearing mice showed much higher tumor uptake in PR-positive MCF-7 tumor (3.9 ± 0.20%ID/g) than that of PR-negative MDA-MB-231 tumor (1.3 ± 0.08%ID/g). The high MCF-7 tumor uptake could be specifically inhibited by blocking with ethisterone (1.3 ± 0.11%ID/g) or [19F]FPTT (2.20 ± 0.17%ID/g), respectively. The biodistribution in estrogen-primed female SD rats of [18F]FPTT showed high uterus and ovary uptakes (8.31 ± 1.74%ID/g and 3.79 ± 0.82%ID/g at 1 h post-injection). The specific uptakes of uterus and ovary in normal rats were 3.52 ± 0.29%ID/g and 3.22 ± 0.50%ID/g respectively and could be inhibited by co-injecting of ethisterone. CONCLUSION A novel [18F]FPTT probe based on ethisterone modification could be a potential diagnostic agent for PR-positive breast cancer.
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Affiliation(s)
- Fei Gao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Chenyu Peng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Rongqiang Zhuang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China.
| | - Zhide Guo
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Huanhuan Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Lumei Huang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Hua Li
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Duo Xu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Xuejun Wen
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Jianyang Fang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Xianzhong Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China.
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Zhang T, Ma C, Sun T, Xie Z. Unadulterated BODIPY nanoparticles for biomedical applications. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.04.001] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Guan Y, Sun T, Ding J, Xie Z. Robust organic nanoparticles for noninvasive long-term fluorescence imaging. J Mater Chem B 2019; 7:6879-6889. [PMID: 31657432 DOI: 10.1039/c9tb01905g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Organic nanoparticles obtained from fluorophores with aggregation-caused quenching and aggregation-induced emission features for noninvasive long-term bioimaging are summarized and highlighted.
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Affiliation(s)
- Yuyao Guan
- Department of Radiology
- China-Japan Union Hospital of Jilin University
- Changchun
- P. R. China
| | - Tingting Sun
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Jun Ding
- Department of Radiology
- China-Japan Union Hospital of Jilin University
- Changchun
- P. R. China
| | - Zhigang Xie
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
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