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Liu W, Chu T. Synthesis and in vitro evaluation of radioiodine labeled hypoxia-targeted drugs containing 2-nitroimidazole and benzenesulfonamide groups. Eur J Med Chem 2025; 289:117443. [PMID: 40022878 DOI: 10.1016/j.ejmech.2025.117443] [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: 01/07/2025] [Revised: 02/18/2025] [Accepted: 02/22/2025] [Indexed: 03/04/2025]
Abstract
Designing new radiolabeled hypoxia-targeted drugs is of great help in the diagnosis of tumors. Hypoxia-targeted drugs with dual bioactive groups can enhance hypoxia selectivity, strengthen the binding of drugs to targets, and improve diagnostic accuracy compared with traditional hypoxia-targeted drugs containing only one nitroimidazole group. In this study, a series of novel radioiodine labeled tyrosine derivatives containing 2-nitroimidazole and benzenesulfonamide groups were synthesized and in vitro evaluated. In the uptake experiments of S180 cells that didn't express carbonic anhydrase IX (CAIX), the compound [131I]-3-(3-iodo-4-(2-(2-methoxyethoxy)ethoxy)phenyl)-2-(2-(2-nitro-1H-imidazole-1-yl)acetamido)-N-(2-(2-nitro-1H-imidazole-1-yl)ethyl)propenamide (131I-Tyr-05) containing two 2-nitroimidazole groups was modified from phenolic hydroxyl to methoxy to 2-(2-methoxyethoxy)ethoxy, gradually achieving improved membrane permeability and enhanced hydrophilicity. Compared with other compounds with similar structures but containing only one 2-nitroimidazole, it had higher hypoxic selectivity. In the uptake experiment of HeLa cells that expressed CAIX, [131I]-N-(3-(3-iodo-4-(2-(2-methoxyethoxy)ethoxy)phenyl)-1-((2-(2-nitro-1H-imidazole-1-yl)ethyl)amino)-1-oxopropan-2-yl)-4-sulfamoylbenzamide (131I-Tyr-06), which contained both 2-nitroimidazole and benzenesulfonamide group, achieved enhanced hypoxic uptake and selectivity through the combination of two targeting groups. The S180 cell blocking experiments of 131I-Tyr-05 and 131I-Tyr-06 showed that the benzenesulfonamide group of the compounds didn't inhibit cellular uptake, and inhibition of cytochrome P450 (CYP450) enzyme had no effect on cellular uptake. In silico ADMET evaluation showed that I-Tyr-05 and I-Tyr-06 possessed acceptable physicochemical and ADMET properties. In conclusion, this work demonstrated the advantages of hypoxia-targeted drugs containing dual bioactive groups compared to a single group, and also found it was a feasible approach to design new dual-targeted drugs by combining 2-nitroimidazole and benzenesulfonamide groups.
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Affiliation(s)
- Weiqi Liu
- Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, PR China
| | - Taiwei Chu
- Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, PR China.
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2
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Chen X, Dou X, Qiu W. Promising strategies for smart insulin delivery system: Glucose-sensitive microneedle. Eur J Med Chem 2024; 278:116793. [PMID: 39216380 DOI: 10.1016/j.ejmech.2024.116793] [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: 06/18/2024] [Revised: 07/31/2024] [Accepted: 08/22/2024] [Indexed: 09/04/2024]
Abstract
The diabetes treatment landscape is rapidly evolving towards intelligent and precise therapeutic interventions. Among these advancements, glucose-sensitive microneedle patches (GSMPs), which can automatically adjust the transdermal release rate of insulin based on glucose concentrations, are emerging as a promising strategy. In this work, a new classification method has been proposed for GSMPs, categorizing them into integrated, all-in-one, and core-shell structures. The working mechanism and performance of GSMPs are thoroughly analyzed to compare the advantages and disadvantages of these three forms. The correlation between glucose-sensitive performance and normal blood glucose maintenance time (NGT) is further explored. Our findings indicate that all-in-one GSMPs demonstrate a positive correlation between in vitro glucose-sensitive controlled-release performance and NGT, unlike assembled GSMPs, where the performance is influenced by the matrix material and crosslinking factors. Simultaneously, challenges in clinical translation and future development trends are discussed from a patient's perspective. In summary, the new classification method, in-depth explanation of mechanisms, and analysis of challenges in this work contribute to a better understanding of the field of GSMPs and provide guidance for the development of more advanced and efficient GSMPs.
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Affiliation(s)
- Xiang Chen
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313000, PR China
| | - Xiaojie Dou
- First Affiliated Hospital of Huzhou University, Huzhou, 313000, PR China
| | - Wei Qiu
- Affiliated Huzhou Hospital, Zhejiang University School of Medicine, Huzhou, 313000, PR China.
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3
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Mokoala KMG, Sathekge MM. Non-FDG hypoxia tracers. Semin Nucl Med 2024; 54:827-844. [PMID: 39510855 DOI: 10.1053/j.semnuclmed.2024.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2024] [Accepted: 10/01/2024] [Indexed: 11/15/2024]
Abstract
Hypoxia plays a critical role in tumor biology, influencing cancer progression, treatment resistance, and patient prognosis. While 18-Fluorine fluoredeoxyglucose ([18F]F-FDG) PET imaging has been the standard for metabolic assessment, its limitations in accurately depicting hypoxic tumor regions necessitate the exploration of non-FDG hypoxia tracers. This review aims to evaluate emerging non-FDG radiotracers, such as nitroimidazole derivatives, copper-based agents, gallium-based agents and other innovative compounds, highlighting their mechanisms of action, biodistribution, and clinical applications. We will discuss the advantages and challenges associated with hypoxia imaging, as well as recent advancements in imaging techniques that enhance the assessment of tumor hypoxia. By synthesizing current research, this review seeks to provide insights into the potential of non-FDG hypoxia tracers for improving cancer diagnosis, treatment planning, and monitoring, ultimately contributing to more personalized and effective cancer care.
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Affiliation(s)
- Kgomotso M G Mokoala
- University of Pretoria, Pretoria, ZA-GP, South Africa; Nuclear Medicine Research Infrastructure (NuMeRI), Pretoria, ZA-GP, South Africa.
| | - Mike M Sathekge
- University of Pretoria, Pretoria, ZA-GP, South Africa; Nuclear Medicine Research Infrastructure (NuMeRI), Pretoria, ZA-GP, South Africa
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4
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Ahmad Z, Arshad N, Alsaab HO, Selamoğlu Z, Shah A. Exploration of cellular uptake and endocytosis mechanisms for doxorubicin-loaded poly (amino acid) nanocarriers. Polym Bull (Berl) 2024; 81:15019-15042. [DOI: 10.1007/s00289-024-05413-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 04/30/2024] [Accepted: 07/03/2024] [Indexed: 08/14/2024]
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5
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Wong KY, Nie Z, Wong MS, Wang Y, Liu J. Metal-Drug Coordination Nanoparticles and Hydrogels for Enhanced Delivery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2404053. [PMID: 38602715 DOI: 10.1002/adma.202404053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/08/2024] [Indexed: 04/12/2024]
Abstract
Drug delivery is a key component of nanomedicine, and conventional delivery relies on the adsorption or encapsulation of drug molecules to a nanomaterial. Many delivery vehicles contain metal ions, such as metal-organic frameworks, metal oxides, transition metal dichalcogenides, MXene, and noble metal nanoparticles. These materials have a high metal content and pose potential long-term toxicity concerns leading to difficulties for clinical approval. In this review, recent developments are summarized in the use of drug molecules as ligands for metal coordination forming various nanomaterials and soft materials. In these cases, the drug-to-metal ratio is much higher than conventional adsorption-based strategies. The drug molecules are divided into small-molecule drugs, nucleic acids, and proteins. The formed hybrid materials mainly include nanoparticles and hydrogels, upon which targeting ligands can be grafted to improve efficacy and further decrease toxicity. The application of these materials for addressing cancer, viral infection, bacterial infection inflammatory bowel disease, and bone diseases is reviewed. In the end, some future directions are discussed from fundamental research, materials science, and medicine.
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Affiliation(s)
- Ka-Ying Wong
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
- Centre for Eye and Vision Research (CEVR), 17W, Hong Kong Science Park, Pak Shek Kok, 999077, Hong Kong
| | - Zhenyu Nie
- Department of Urology, Xiangya Hospital, Central South University, Changsha, 410008, China
- Institute of Integrative Medicine, Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha , 410008, P. R. China
| | - Man-Sau Wong
- Centre for Eye and Vision Research (CEVR), 17W, Hong Kong Science Park, Pak Shek Kok, 999077, Hong Kong
- Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Kowloon, 999077, Hong Kong
- Research Center for Chinese Medicine Innovation, The Hong Kong Polytechnic University, Hung Hom, Kowloon, 999077, Hong Kong
| | - Yang Wang
- Institute of Integrative Medicine, Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha , 410008, P. R. China
- Center for Interdisciplinary Research in Traditional Chinese Medicine, Xiangya Hospital, Central South University, Changsha, 410008, P. R. China
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
- Centre for Eye and Vision Research (CEVR), 17W, Hong Kong Science Park, Pak Shek Kok, 999077, Hong Kong
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6
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Abdolmaleki S, Aliabadi A, Khaksar S. Unveiling the promising anticancer effect of copper-based compounds: a comprehensive review. J Cancer Res Clin Oncol 2024; 150:213. [PMID: 38662225 PMCID: PMC11045632 DOI: 10.1007/s00432-024-05641-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 02/03/2024] [Indexed: 04/26/2024]
Abstract
Copper is a necessary micronutrient for maintaining the well-being of the human body. The biological activity of organic ligands, especially their anticancer activity, is often enhanced when they coordinate with copper(I) and (II) ions. Copper and its compounds are capable of inducing tumor cell death through various mechanisms of action, including activation of apoptosis signaling pathways by reactive oxygen species (ROS), inhibition of angiogenesis, induction of cuproptosis, and paraptosis. Some of the copper complexes are currently being evaluated in clinical trials for their ability to map tumor hypoxia in various cancers, including locally advanced rectal cancer and bulky tumors. Several studies have shown that copper nanoparticles can be used as effective agents in chemodynamic therapy, phototherapy, hyperthermia, and immunotherapy. Despite the promising anticancer activity of copper-based compounds, their use in clinical trials is subject to certain limitations. Elevated copper concentrations may promote tumor growth, angiogenesis, and metastasis by affecting cellular processes.
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Affiliation(s)
- Sara Abdolmaleki
- Department of Pharmaceutical Chemistry, School of Science and Technology, The University of Georgia, Tbilisi, Georgia.
| | - Alireza Aliabadi
- Pharmaceutical Sciences Research Center, Health Institute, School of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Samad Khaksar
- Department of Pharmaceutical Chemistry, School of Science and Technology, The University of Georgia, Tbilisi, Georgia.
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7
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Wang Q, Serda M, Li Q, Sun T. Recent Advancements on Self-Immolative System Based on Dynamic Covalent Bonds for Delivering Heterogeneous Payloads. Adv Healthc Mater 2023; 12:e2300138. [PMID: 36943096 DOI: 10.1002/adhm.202300138] [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: 01/12/2023] [Revised: 03/10/2023] [Indexed: 03/23/2023]
Abstract
The precisely spatial-temporal delivery of heterogeneous payloads from a single system with the same pulse is in great demand in realizing versatile and synergistic functions. Very few molecular architectures can satisfy the strict requirements of dual-release translated from single triggers, while the self-immolative systems based on dynamic covalent bonds represent the "state-of-art" of ultimate solution strategy. Embedding heterogeneous payloads symmetrically onto the self-immolative backbone with dynamic covalent bonds as the trigger, can respond to the quasi-bio-orthogonal hallmarks which are higher at the disease's microenvironment to simultaneously yield the heterogeneous payloads (drug A/drug B or drug/reporter). In this review, the modular design principles are concentrated to illustrate the rules in tailoring useful structures, then the rational applications are enumerated on the aspects of drug codelivery and visualized drug-delivery. This review, hopefully, can give the general readers a comprehensive understanding of the self-immolative systems based on dynamic covalent bonds for delivering heterogeneous payloads.
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Affiliation(s)
- Qingbing Wang
- Department of Interventional Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Rui Jin Er Road, Shanghai, 200025, P. R. China
- Key Laboratory of Smart Drug Delivery Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, P. R. China
| | - Maciej Serda
- Institute of Chemistry, University of Silesia in Katowice, Katowice, 40-006, Poland
| | - Quan Li
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, 10 Boyanghu Road, Tianjin, 301617, P. R. China
- College of Chemistry and Chemical Engineering, Hubei University, 368 Youyidadao Avenue, Wuhan, 430062, P. R. China
| | - Tao Sun
- Key Laboratory of Smart Drug Delivery Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, P. R. China
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8
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Valable S, Toutain J, Divoux D, Chazalviel L, Corroyer-Dulmont A, Chakhoyan A, Guillouet S, Bernaudin M, Barbier EL, Touzani O. Magnetic resonance imaging of hypoxia in acute stroke compared with fluorine-18 fluoromisonidazole-positron emission tomography: A cross-validation study? NMR IN BIOMEDICINE 2023; 36:e4858. [PMID: 36285719 DOI: 10.1002/nbm.4858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 10/07/2022] [Accepted: 10/23/2022] [Indexed: 06/16/2023]
Abstract
Acute ischemic stroke results in an ischemic core surrounded by a tissue at risk, named the penumbra, which is potentially salvageable. One way to differentiate the tissues is to measure the hypoxia status. The purpose of the current study is to correlate the abnormal brain tissue volume derived from magnetic resonance-based imaging of brain oxygen saturation (St O2 -MRI) to the fluorine-18 fluoromisonidazole ([18 F]FMISO) positron emission tomography (PET) volume for hypoxia imaging validation, and to analyze the ability of St O2 -MRI to depict the different hypoxic tissue types in the acute phase of stroke. In a pertinent model of stroke in the rat, the volume of tissue with decreased St O2 -MRI signal and that with increased uptake of [18 F]FMISO were equivalent and correlated (r = 0.706; p = 0.015). The values of St O2 in the tissue at risk were significantly greater than those quantified in the core of the lesion, and were less than those for healthy tissue (52.3% ± 2.0%; 43.3% ± 1.9%, and 67.9 ± 1.4%, respectively). A threshold value for St O2 of ≈60% as the cut-off for the identification of the tissue at risk was calculated. Tissue volumes with reduced St O2 -MRI correlated with the final lesion (r = 0.964, p < 0.0001). The findings show that the St O2 -MRI approach is sensitive for the detection of hypoxia and for the prediction of the final lesion after stroke. Once validated in acute clinical settings, this approach might be used to enhance the stratification of patients for potential therapeutic interventions.
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Affiliation(s)
- Samuel Valable
- Normandie-Univ, UNICAEN, CEA, CNRS, GIP CYCERON, ISTCT/CERVOxy group, Caen, France
| | - Jérôme Toutain
- Normandie-Univ, UNICAEN, CEA, CNRS, GIP CYCERON, ISTCT/CERVOxy group, Caen, France
| | - Didier Divoux
- Normandie-Univ, UNICAEN, CEA, CNRS, GIP CYCERON, ISTCT/CERVOxy group, Caen, France
| | - Laurent Chazalviel
- Normandie-Univ, UNICAEN, CEA, CNRS, GIP CYCERON, ISTCT/CERVOxy group, Caen, France
| | | | - Ararat Chakhoyan
- Normandie-Univ, UNICAEN, CEA, CNRS, GIP CYCERON, ISTCT/CERVOxy group, Caen, France
| | - Stéphane Guillouet
- Normandie-Univ, UNICAEN, CEA, CNRS, GIP CYCERON, ISTCT/LDM-TEP group, Caen, France
| | - Myriam Bernaudin
- Normandie-Univ, UNICAEN, CEA, CNRS, GIP CYCERON, ISTCT/CERVOxy group, Caen, France
| | - Emmanuel L Barbier
- Univ. Grenoble Alpes, Grenoble Institut Neurosciences, Inserm, U1216, Grenoble, France
| | - Omar Touzani
- Normandie-Univ, UNICAEN, CEA, CNRS, GIP CYCERON, ISTCT/CERVOxy group, Caen, France
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9
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Xie F, Wei W. [ 64Cu]Cu-ATSM: an emerging theranostic agent for cancer and neuroinflammation. Eur J Nucl Med Mol Imaging 2022; 49:3964-3972. [PMID: 35918492 DOI: 10.1007/s00259-022-05887-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Fang Xie
- PET Center, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Weijun Wei
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, 200127, China.
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10
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Su H, Liu W, Chu T. Synthesis and bioevaluation of radioiodated nitroimidazole-based hypoxia imaging agents containing different charged substituents. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08267-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Sarkar D, Chowdhury M, Das PK. Naphthalimide-Based Azo-Functionalized Supramolecular Vesicle in Hypoxia-Responsive Drug Delivery. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:3480-3492. [PMID: 35261245 DOI: 10.1021/acs.langmuir.1c03334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Supramolecular materials that respond to external triggers are being extensively utilized in developing spatiotemporal control in biomedical applications ranging from drug delivery to diagnostics. The present article describes the development of self-assembled vesicles in 1:9 (v/v), tetrahydrofuran (THF)-water by naphthalimide-based azo moiety containing amphiphile (NI-Azo) where azo moiety would act as the stimuli-responsive junction. The self-assembly of NI-Azo took place through H-type of aggregation. Microscopic and spectroscopic analyses confirmed the formation of supramolecular vesicles with a dimension of 200-250 nm. Azo (-N═N-) moiety is known to get reduced to amine derivatives in the presence of the azoreductase enzyme, which is overexpressed in the hypoxic microenvironment. The absorbance intensity of this characteristic azo (-N═N-) moiety of NI-Azo (1:9 (v/v), THF-water) at 458 nm got diminished in the presence of both extracellular and intracellular bacterial azoreductase extracted from Escherichia coli bacteria. The same observation was noted in the presence of sodium dithionite (mimic of azoreductase), indicating that azoreductase/sodium dithionite induced azo bond cleavage of NI-Azo, which was confirmed by matrix-assisted laser desorption ionization time-of-flight spectrometric data of the corresponding aromatic amine fragments. The anticancer drug, curcumin, was encapsulated inside NI-Azo vesicles that successfully killed B16F10 cells (cancer cells) in CoCl2-induced hypoxic environment owing to the azoreductase-responsive release of drug. The cancer cell killing efficiency by curcumin-loaded NI-Azo vesicles in the hypoxic condition was 2.15-fold higher than that of the normoxic environment and 2.4-fold higher compared to that of native curcumin in the hypoxic condition. Notably, cancer cell killing efficiency of curcumin-loaded NI-Azo vesicles was 4.5- and 1.9-fold higher than that of noncancerous NIH3T3 cells in normoxic and hypoxic environments, respectively. Cell killing was found to be primarily through the early apoptotic pathway.
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Affiliation(s)
- Deblina Sarkar
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Monalisa Chowdhury
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Prasanta Kumar Das
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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12
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Su H, Chu T. Synthesis and Bioevaluation of the Cyclopentadienyl Tricarbonyl Technetium-99m 2-Nitroimidazole Derivatives for Tumor Hypoxia Imaging. Bioorg Med Chem Lett 2022; 60:128583. [PMID: 35085720 DOI: 10.1016/j.bmcl.2022.128583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 01/03/2022] [Accepted: 01/19/2022] [Indexed: 11/02/2022]
Abstract
Hypoxia imaging agents can play an important role in the tumor treatment by avoiding the worse effect of radiotherapy and chemotherapy due to the tumor hypoxia. Due to the small size and easy coordination, tricarbonyl technetium-99m can be used to label a wide range of imaging agents. In this work, the tricarbonyl 99mTc labeled small-sized hypoxia imaging agents containing 2-nitroimidazoles were prepared, which have different carbon chain lengths between cyclopentadienyl and 2-nitroimidazole, and which have one or two 2-nitroimidazole groups. The results of S180 cell experiment and biodistribution indicated that these molecules have different hypoxic selectivity. When contains one 2-nitroimidazole, as the carbon chain lengthens, which means the molecular volume becomes larger, hypoxia cellular uptake and selectivity decrease in S180 cell uptake experiment. In biodistribution study in mice bearing S180 tumor, Tc-2 (1-cyclopentadienyl-5-(2-nitro-1H-imidazol-1-yl)-pentan-1-one tricarbonyl 99mTc complex), which has intermediate carbon chain, is better due to the more complex factors. Its tumor/blood (T/B) ratio is 3.56±0.25, tumor/muscle(T/M) ratio is 1.73±0.29 and tumor uptake is 2.23±0.24 %ID/g at 2 h. Comparing to other tricarbonyl technetium complexes containing one 2-nitroimidazole, the complexes in this work have an advantage in tumor/blood ratio and tumor uptake. This suggests that the small-volume cyclopentadienyl may have an advantage when used as a ligand. When contains two 2-nitroimidazole groups, the complex, 1-cyclopentadienyl-5-di(2-(2-nitro-1H-imidazol-1-yl)ethyl)amino-pentan-1-one tricarbonyl 99mTc complex (Tc-4), has the better results in the cell experiment than those which contain one 2-nitroimidazole group. Thus the hypoxia imaging agent contains two 2-nitroimidazole groups is more advantageous, but further modifications of Tc-4 are needed to improve its clearance rate in the blood, because the increased lipophilicity leads to a decrease in the T/B ratio of Tc-4. In conclusion, small volume hypoxia imaging agents with two 2-nitroimidazole groups may be the trend of development.
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Affiliation(s)
- Hang Su
- Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Taiwei Chu
- Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
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13
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Kumari R, R. V, Sunil D, N. V. AK, Ningthoujam RS, Pandey BN, D. Kulkarni S, Varadavenkatesan T, Venkatachalam G. Dinitro Derivative of Naphthalimide as a Fluorescent Probe for Tumor Hypoxia Imaging. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.2009525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Rashmi Kumari
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Vasumathy R.
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, India
| | - Dhanya Sunil
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Anil Kumar N. V.
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Raghumani Singh Ningthoujam
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, India
- Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Badri Narain Pandey
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, India
- Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Suresh D. Kulkarni
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Thivaharan Varadavenkatesan
- Department of Biotechnology, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Ganesh Venkatachalam
- Electrodics and Electrocatalysis (EEC) Division, CSIR-Central Electrochemical Research Institute (CSIR-CECRI), Karaikudi, Tamil Nadu, India
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14
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Lu J, Mei Q, Hou X, Manaenko A, Zhou L, Liebeskind DS, Zhang JH, Li Y, Hu Q. Imaging Acute Stroke: From One-Size-Fit-All to Biomarkers. Front Neurol 2021; 12:697779. [PMID: 34630278 PMCID: PMC8497192 DOI: 10.3389/fneur.2021.697779] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 06/30/2021] [Indexed: 12/27/2022] Open
Abstract
In acute stroke management, time window has been rigidly used as a guide for decades and the reperfusion treatment is only available in the first few limited hours. Recently, imaging-based selection of patients has successfully expanded the treatment window out to 16 and even 24 h in the DEFUSE 3 and DAWN trials, respectively. Recent guidelines recommend the use of imaging techniques to guide therapeutic decision-making and expanded eligibility in acute ischemic stroke. A tissue window is proposed to replace the time window and serve as the surrogate marker for potentially salvageable tissue. This article reviews the evolution of time window, addresses the advantage of a tissue window in precision medicine for ischemic stroke, and discusses both the established and emerging techniques of neuroimaging and their roles in defining a tissue window. We also emphasize the metabolic imaging and molecular imaging of brain pathophysiology, and highlight its potential in patient selection and treatment response prediction in ischemic stroke.
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Affiliation(s)
- Jianfei Lu
- Central Laboratory, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qiyong Mei
- Department of Neurosurgery, Changzheng Hospital, Navy Medical University, Shanghai, China
| | - Xianhua Hou
- Department of Neurology, Southwest Hospital, Army Medical University, Chongqing, China
| | - Anatol Manaenko
- National Health Commission Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lili Zhou
- Department of Neurology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - David S. Liebeskind
- Neurovascular Imaging Research Core and University of California Los Angeles Stroke Center, University of California, Los Angeles, Los Angeles, CA, United States
| | - John H. Zhang
- Department of Anesthesiology, Loma Linda University School of Medicine, Loma Linda, CA, United States
| | - Yao Li
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Qin Hu
- Central Laboratory, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Apilan AG, Mothersill C. Targeted and Non-Targeted Mechanisms for Killing Hypoxic Tumour Cells-Are There New Avenues for Treatment? Int J Mol Sci 2021; 22:8651. [PMID: 34445354 PMCID: PMC8395506 DOI: 10.3390/ijms22168651] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/07/2021] [Accepted: 08/09/2021] [Indexed: 11/25/2022] Open
Abstract
PURPOSE A major issue in radiotherapy is the relative resistance of hypoxic cells to radiation. Historic approaches to this problem include the use of oxygen mimetic compounds to sensitize tumour cells, which were unsuccessful. This review looks at modern approaches aimed at increasing the efficacy of targeting and radiosensitizing hypoxic tumour microenvironments relative to normal tissues and asks the question of whether non-targeted effects in radiobiology may provide a new "target". Novel techniques involve the integration of recent technological advancements such as nanotechnology, cell manipulation, and medical imaging. Particularly, the major areas of research discussed in this review include tumour hypoxia imaging through PET imaging to guide carbogen breathing, gold nanoparticles, macrophage-mediated drug delivery systems used for hypoxia-activate prodrugs, and autophagy inhibitors. Furthermore, this review outlines several features of these methods, including the mechanisms of action to induce radiosensitization, the increased accuracy in targeting hypoxic tumour microenvironments relative to normal tissue, preclinical/clinical trials, and future considerations. CONCLUSIONS This review suggests that the four novel tumour hypoxia therapeutics demonstrate compelling evidence that these techniques can serve as powerful tools to increase targeting efficacy and radiosensitizing hypoxic tumour microenvironments relative to normal tissue. Each technique uses a different way to manipulate the therapeutic ratio, which we have labelled "oxygenate, target, use, and digest". In addition, by focusing on emerging non-targeted and out-of-field effects, new umbrella targets are identified, which instead of sensitizing hypoxic cells, seek to reduce the radiosensitivity of normal tissues.
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Chen S, Chen M, Yang J, Zeng X, Zhou Y, Yang S, Yang R, Yuan Q, Zheng J. Design and Engineering of Hypoxia and Acidic pH Dual-Stimuli-Responsive Intelligent Fluorescent Nanoprobe for Precise Tumor Imaging. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2100243. [PMID: 34117822 DOI: 10.1002/smll.202100243] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/29/2021] [Indexed: 05/21/2023]
Abstract
Stimulus-responsive fluorescence imaging modality shows great promise for detection of tumor due to the advantages of high sensitivity, simplicity and noninvasiveness. However, some non-cancer regions including nodules and inflammation may also exhibit a stimulus-related characteristic, which cause the problem of nonspecific responsiveness and then cause "false positive" results for tumor recognition. Herein, hypoxia and acidic pH, two typical features strongly associated with tumor invasion, progression and metastasis in tumor microenvironment (TME), are chosen as dual stimuli to fabricate "dual lock-and-key" fluorescent nanoprobe for highly specific and precise imaging of tumor cells. Mesoporous silica coated gold nanorods (AuNR@mSiO2 ) are employed as nanocarrier and nanoquencher to load the pH-sensitive fluorescent reporter (Rho-TP). Azobenzene (azo) which can be reduced to amines by the highly expressed azoreductase under hypoxic conditions, is elected as the effective gatekeeper for AuNR@mSiO2 by forming complex with β-cyclodextrin polymer via host-guest interaction (azo/β-CDP). By elaborately combining the hypoxia-responsive gatekeeper and pH-responsive fluorescent signal reporter into one nanoprobe, sensitive and specific imaging of tumor cells can be realized. The fabricated dual lock-and-key fluorescent nanoprobe successfully further apply in tumor-bearing mice model, which indicate potential of early diagnosis and assessment of cancer treatment.
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Affiliation(s)
- Shiya Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Institute of Chemical Biology and Nanomedicine (ICBN), Hunan University, Changsha, 410082, China
- School of Chemistry and Food Engineering, Hunan Provincial Key Laboratory of Cytochemistry, Changsha University of Science and Technology, Changsha, 410004, China
| | - Mingjian Chen
- NHC Key Laboratory of Carcinogenesis and Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medical Science, Central South University, Changsha, 410083, China
| | - Jinfeng Yang
- Department of Anesthesiology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, 410013, China
| | - Xianqing Zeng
- School of Chemistry and Food Engineering, Hunan Provincial Key Laboratory of Cytochemistry, Changsha University of Science and Technology, Changsha, 410004, China
| | - Yibo Zhou
- School of Chemistry and Food Engineering, Hunan Provincial Key Laboratory of Cytochemistry, Changsha University of Science and Technology, Changsha, 410004, China
| | - Sheng Yang
- School of Chemistry and Food Engineering, Hunan Provincial Key Laboratory of Cytochemistry, Changsha University of Science and Technology, Changsha, 410004, China
| | - Ronghua Yang
- School of Chemistry and Food Engineering, Hunan Provincial Key Laboratory of Cytochemistry, Changsha University of Science and Technology, Changsha, 410004, China
| | - Quan Yuan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Institute of Chemical Biology and Nanomedicine (ICBN), Hunan University, Changsha, 410082, China
| | - Jing Zheng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Institute of Chemical Biology and Nanomedicine (ICBN), Hunan University, Changsha, 410082, China
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17
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Kwon YD, Oh JM, Chun S, Kim HK. Synthesis and evaluation of multivalent nitroimidazole-based near-infrared fluorescent agents for neuroblastoma and colon cancer imaging. Bioorg Chem 2021; 113:104990. [PMID: 34051414 DOI: 10.1016/j.bioorg.2021.104990] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 04/13/2021] [Accepted: 05/11/2021] [Indexed: 01/03/2023]
Abstract
Hypoxia is one of key characteristics of microenvironments of solid tumors, and evaluation of hypoxia status in solid tumors is important to determine cancer stage and appropriate treatment. In the present study, novel, multivalent, near-infrared (NIR) fluorescent imaging agents were developed to measure tumor hypoxia. These agents were synthesized using an amino acid as a backbone to connect mono-, bis-, or tris-2-nitroimidazole as a hypoxia-sensitive moiety to enhance uptake by the tumor and to attach sulfo-Cyanine 5.5 as an NIR fluorophore to visualize tumor accumulation. Studies of physical characteristics demonstrated that the novel NIR imaging agents showed suitable optical properties for in vitro and in vivo imaging and were stable in serum. In vitro cellular uptake studies in SK-N-BE(2) and SW620 cell lines demonstrated that NIR imaging agents bearing 2-nitroimidazole structures showed significantly higher tumor uptake in hypoxic cells than in normoxic cells. Moreover, in vivo optical imaging studies using SK-N-BE(2) and SW620 xenografted mice demonstrated that novel, multivalent, 2-nitroimadazole NIR imaging agents with two or three 2-nitroimidazole moieties showed higher uptake in tumor than the control agents with only one 2-nitroimidazole. These observations suggest that novel, multivalent, NIR agents could serve as potential optical imaging agents for evaluating tumor hypoxia.
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Affiliation(s)
- Young-Do Kwon
- Department of Chemistry, Rice University, Houston, TX 77005, USA; Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea
| | - Jung-Mi Oh
- Department of Physiology, Jeonbuk National University Medical School, 20 Geonji-ro, Deokjin-gu, Jeonju 54907, Republic of Korea
| | - Sungkun Chun
- Department of Physiology, Jeonbuk National University Medical School, 20 Geonji-ro, Deokjin-gu, Jeonju 54907, Republic of Korea.
| | - Hee-Kwon Kim
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea; Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea.
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18
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El-Refaei MF, Abdallah EA. Protective effects of caffeic acid phenethyl ester on cadmium-induced testicular injury: A crucial role of antioxidant enzymes in male mice infertility. Heliyon 2021; 7:e06965. [PMID: 34027170 PMCID: PMC8121658 DOI: 10.1016/j.heliyon.2021.e06965] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 03/31/2021] [Accepted: 04/26/2021] [Indexed: 01/27/2023] Open
Abstract
Infertility in men is referred to inability to achieve pregnancy in fertile females after at least one year of regular intercourse. The lack of oxygen in the environment may lead to an imbalance of testes production. Swiss mice were alienated into four groups 10 mice/each. This included one negative normal control group I. The induction of infertility was achieved with injection of cadmium chloride at dose 3 mg/kg body weight for four consecutive days for the rest groups. Group III received vehicle (saline) from the second day of induction for the similar period during the experiment. Infertile mice determined depending on alterations in morphology, motility, and reduced sperm count. Group IV was treated with 3 mg/kg of caffeic acid phenethyl ester (CAPE) per day, for 6 days from the second day of cadmium intoxication. Data showed effectiveness of CAPE significantly through improving the antioxidant enzymes SOD, GST and GSH in testes homogenate and GSH-Px in mice serum that were treated compared to those in the untreated group II (P˂0.001). The histopathology, DNA analysis showed marked improvement in spermatogenesis and DNA intact pattern in treated mice testis. Overall, the results demonstrated the ability of CAPE to improve spermatogenic cells. The data analysis indicated the possibility for the future use of CAPE as an inhibitory agent of infertility. Clinical trials and further studies are required to evaluate the definite medical effects of CAPE based on abundant experimental studies, with predictive future applications in human clinical trials.
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Affiliation(s)
- Mohamed F. El-Refaei
- Faculty of Medicine, Albaha University, Albaha, Saudi Arabia
- Genetic Institute, Sadat City University, Egypt
- Corresponding author.
| | - Eman A.A. Abdallah
- Faculty of Medicine, Albaha University, Albaha, Saudi Arabia
- Faculty of Medicine, Zagazig University, Egypt
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19
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Little PV, Arnberg F, Jussing E, Lu L, Ingemann Jensen A, Mitsios N, Mulder J, Tran TA, Holmin S. The cellular basis of increased PET hypoxia tracer uptake in focal cerebral ischemia with comparison between [ 18F]FMISO and [ 64Cu]CuATSM. J Cereb Blood Flow Metab 2021; 41:617-629. [PMID: 32423333 PMCID: PMC7922752 DOI: 10.1177/0271678x20923857] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 03/31/2020] [Accepted: 04/12/2020] [Indexed: 11/16/2022]
Abstract
PET hypoxia imaging can assess tissue viability in acute ischemic stroke (AIS). [18F]FMISO is an established tracer but requires substantial accumulation time, limiting its use in hyperacute AIS. [64Cu]CuATSM requires less accumulation time and has shown promise as a hypoxia tracer. We compared these tracers in a M2-occlusion model (M2CAO) with preserved collateral blood flow. Rats underwent M2CAO and [18F]FMISO (n = 12) or [64Cu]CuATSM (n = 6) examinations. [64Cu]CuATSM animals were also examined with MRI. Pimonidazole was used as a surrogate for [18F]FMISO in an immunofluorescence analysis employed to profile levels of hypoxia in neurons (NeuN) and astrocytes (GFAP). There was increased [18F]FMISO uptake in the M2CAO cortex. No increase in [64Cu]CuATSM activity was found. The pimonidazole intensity of neurons and astrocytes was increased in hypoxic regions. The pimonidazole intensity ratio was higher in neurons than in astrocytes. In the majority of animals, immunofluorescence revealed a loss of astrocytes within the core of regions with increased pimonidazole uptake. We conclude that [18F]FMISO is superior to [64Cu]CuATSM in detecting hypoxia in AIS, consistent with an earlier study. [18F]FMISO may provide efficient diagnostic imaging beyond the hyperacute phase. Results do not provide encouragement for the use of [64Cu]CuATSM in experimental AIS.
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Affiliation(s)
- Philip V Little
- The Department of Clinical Neuroscience, Karolinska Institutet,
Stockholm Sweden
- The Department of Neuroradiology, BioClinicum, Karolinska
University Hospital, Stockholm, Sweden
| | - Fabian Arnberg
- The Department of Clinical Neuroscience, Karolinska Institutet,
Stockholm Sweden
- The Department of Neuroradiology, BioClinicum, Karolinska
University Hospital, Stockholm, Sweden
| | - Emma Jussing
- The Department of Clinical Neuroscience, Karolinska Institutet,
Stockholm Sweden
- The Department of Radiopharmacy, Karolinska University Hospital,
Stockholm, Sweden
- The Department of Oncology and Pathology, Karolinska Institutet,
Stockholm Sweden
| | - Li Lu
- The Department of Clinical Neuroscience, Karolinska Institutet,
Stockholm Sweden
- The Department of Radiopharmacy, Karolinska University Hospital,
Stockholm, Sweden
- The Department of Oncology and Pathology, Karolinska Institutet,
Stockholm Sweden
| | | | - Nicholas Mitsios
- The Department of Neuroscience, Karolinska Institutet,
Stockholm, Sweden
| | - Jan Mulder
- The Department of Neuroscience, Karolinska Institutet,
Stockholm, Sweden
| | - Thuy A Tran
- The Department of Clinical Neuroscience, Karolinska Institutet,
Stockholm Sweden
- The Department of Radiopharmacy, Karolinska University Hospital,
Stockholm, Sweden
- The Department of Oncology and Pathology, Karolinska Institutet,
Stockholm Sweden
| | - Staffan Holmin
- The Department of Clinical Neuroscience, Karolinska Institutet,
Stockholm Sweden
- The Department of Neuroradiology, BioClinicum, Karolinska
University Hospital, Stockholm, Sweden
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20
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Zhou H, Qin F, Chen C. Designing Hypoxia-Responsive Nanotheranostic Agents for Tumor Imaging and Therapy. Adv Healthc Mater 2021; 10:e2001277. [PMID: 32985141 DOI: 10.1002/adhm.202001277] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/06/2020] [Indexed: 12/15/2022]
Abstract
Hypoxia, a common feature of most solid tumors, plays an important role in tumor proliferation, metastasis, and invasion, leading to drug, radiation, and photodynamic therapy resistance, and resulting in a sharp reduction in the disease-free survival rate of tumor patients. The lack of sufficient blood supply to the interior regions of tumors hinders the delivery of traditional drugs and contrast agents, interfering with their accumulation in the hypoxic region, and preventing efficient theranostics. Thus, there is a need for the fabrication of novel tumor theranostic agents that overcome these obstacles. Reports, in recent years, of hypoxia-responsive nanomaterials may provide with such means. In this review, a comprehensive description of the physicochemical and biological characteristics of hypoxic tumor tissues is provided, the principles of designing the hypoxia-responsive tumor theranostic agents are discussed, and the recent research into hypoxia-triggered nanomaterials is examined. Additionally, other hypoxia-associated responsive strategies, the current limitations, and future prospects for hypoxia-responsive nanotheranostic agents in tumor treatment are discussed.
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Affiliation(s)
- Huige Zhou
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology (NCNST) Beijing 100190 China
- College of Materials Sciences and Opto‐Electronic Technology University of Chinese Academy of Sciences Beijing 100049 China
- Research Unit of Nanoscience and Technology Chinese Academy of Medical Sciences Beijing 100190 China
| | - Fenglan Qin
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology (NCNST) Beijing 100190 China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology (NCNST) Beijing 100190 China
- College of Materials Sciences and Opto‐Electronic Technology University of Chinese Academy of Sciences Beijing 100049 China
- Research Unit of Nanoscience and Technology Chinese Academy of Medical Sciences Beijing 100190 China
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21
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Bresser PL, Vorster M, Sathekge MM. An overview of the developments and potential applications of 68Ga-labelled PET/CT hypoxia imaging. Ann Nucl Med 2021; 35:148-158. [PMID: 33400147 DOI: 10.1007/s12149-020-01563-7] [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: 09/17/2020] [Accepted: 12/01/2020] [Indexed: 12/19/2022]
Abstract
Non-invasive imaging of hypoxia plays a role in monitoring the body's adaptive response or the development of pathology under hypoxic conditions. Various techniques to image hypoxia have been investigated with a shift towards the use of molecular imaging using PET/CT. The role of hypoxia-specific radiopharmaceuticals such as radiolabelled nitroimidazoles is well documented particularly in the oncologic setting. With the increasing utilisation of in-house labelling with a PET benchtop generator, such as the 68Ge/68Ga generator, the use of 68Ga-labelled hypoxic radiopharmaceuticals in the clinical setting is developing. Since hypoxia plays a role in various pathologic states including infectious disease such as TB, there is a need to explore the potential application of 68Ga-labelled hypoxia seeking radiopharmaceuticals beyond oncology. The purpose of this review is to describe the developments of 68Ga-labelled hypoxic radiopharmaceuticals including the various chelators that have been investigated. Further, the role of hypoxia imaging in various pathologies is discussed with particular emphasis on the potential clinical applications of hypoxia PET/CT in TB.
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Affiliation(s)
- Philippa L Bresser
- Department of Radiography, Faculty of Health Sciences, School of Healthcare Sciences, University of Pretoria, HW Snyman Building North, Room 4-33, Bophelo Road, Gezina, Pretoria, 0002, South Africa. .,Department of Nuclear Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.
| | - Mariza Vorster
- Department of Nuclear Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Mike M Sathekge
- Department of Nuclear Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
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22
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Fuchs S, Ernst AU, Wang LH, Shariati K, Wang X, Liu Q, Ma M. Hydrogels in Emerging Technologies for Type 1 Diabetes. Chem Rev 2020; 121:11458-11526. [DOI: 10.1021/acs.chemrev.0c01062] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Stephanie Fuchs
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Alexander U. Ernst
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Long-Hai Wang
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Kaavian Shariati
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Xi Wang
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Qingsheng Liu
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Minglin Ma
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
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23
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Simões JCS, Sarpaki S, Papadimitroulas P, Therrien B, Loudos G. Conjugated Photosensitizers for Imaging and PDT in Cancer Research. J Med Chem 2020; 63:14119-14150. [PMID: 32990442 DOI: 10.1021/acs.jmedchem.0c00047] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Early cancer detection and perfect understanding of the disease are imperative toward efficient treatments. It is straightforward that, for choosing a specific cancer treatment methodology, diagnostic agents undertake a critical role. Imaging is an extremely intriguing tool since it assumes a follow up to treatments to survey the accomplishment of the treatment and to recognize any conceivable repeating injuries. It also permits analysis of the disease, as well as to pursue treatment and monitor the possible changes that happen on the tumor. Likewise, it allows screening the adequacy of treatment and visualizing the state of the tumor. Additionally, when the treatment is finished, observing the patient is imperative to evaluate the treatment methodology and adjust the treatment if necessary. The goal of this review is to present an overview of conjugated photosensitizers for imaging and therapy.
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Affiliation(s)
- João C S Simões
- Institute of Chemistry, University of Neuchatel, Avenue de Bellevaux 51, CH-2000 Neuchatel, Switzerland.,BioEmission Technology Solutions, Alexandras Avenue 116, 11472 Athens, Greece
| | - Sophia Sarpaki
- BioEmission Technology Solutions, Alexandras Avenue 116, 11472 Athens, Greece
| | | | - Bruno Therrien
- Institute of Chemistry, University of Neuchatel, Avenue de Bellevaux 51, CH-2000 Neuchatel, Switzerland
| | - George Loudos
- BioEmission Technology Solutions, Alexandras Avenue 116, 11472 Athens, Greece
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25
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In Vivo Imaging of Hypoxia and Neoangiogenesis in Experimental Syngeneic Hepatocellular Carcinoma Tumor Model Using Positron Emission Tomography. BIOMED RESEARCH INTERNATIONAL 2020; 2020:4952372. [PMID: 32832549 PMCID: PMC7428931 DOI: 10.1155/2020/4952372] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 06/29/2020] [Accepted: 07/11/2020] [Indexed: 12/19/2022]
Abstract
Introduction Hypoxia-induced ανβ3 integrin and aminopeptidase N (APN/CD13) receptor expression play an important role in tumor neoangiogenesis. APN/CD13-specific 68Ga-NOTA-c(NGR), ανβ3 integrin-specific 68Ga-NODAGA-[c(RGD)]2, and hypoxia-specific 68Ga-DOTA-nitroimidazole enable the in vivo detection of the neoangiogenic process and the hypoxic regions in the tumor mass using positron emission tomography (PET) imaging. The aim of this study was to evaluate whether 68Ga-NOTA-c(NGR) and 68Ga-DOTA-nitroimidazole allow the in vivo noninvasive detection of the temporal changes of APN/CD13 expression and hypoxia in experimental He/De tumors using positron emission tomography. Materials and Methods 5 × 106 hepatocellular carcinoma (He/De) cells were used for the induction of a subcutaneous tumor model in Fischer-344 rats. He/De tumor-bearing animals were anaesthetized, and 90 min after intravenous injection of 10.2 ± 1.1 MBq 68Ga-NOTA-c(NGR) or 68Ga-NODAGA-[c(RGD)]2 (as angiogenesis tracers) or 68Ga-DOTA-nitroimidazole (for hypoxia imaging), whole-body PET/MRI scans were performed. Results Hypoxic regions and angiogenic markers (αvβ3 integrin and APN/CD13) were determined using 68Ga-NOTA-c(NGR), 68Ga-DOTA-nitroimidazole, and 68Ga-NODAGA-[c(RGD)]2 in subcutaneously growing He/De tumors in rats. 68Ga-NOTA-c(NGR) showed the strong APN/CD13 positivity of He/De tumors in vivo, by which observation was confirmed by western blot analysis. By the qualitative analysis of PET images, heterogenous accumulation was found inside He/De tumors using all radiotracers. Significantly (p ≤ 0.01) higher SUVmean and SUVmax values were found in the radiotracer avid regions of the tumors than those of the nonavid areas using hypoxia and angiogenesis-specific radiopharmaceuticals. Furthermore, a strong correlation was found between the presence of angiogenic markers, the appearance of hypoxic regions, and the tumor volume using noninvasive in vivo PET imaging. Conclusion 68Ga-DOTA-nitroimidazole and 68Ga-NOTA-c(NGR) are suitable diagnostic radiotracers for the detection of the temporal changes of hypoxic areas and neoangiogenic molecule (CD13) expression, which vary during tumor growth in a hepatocellular carcinoma model.
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26
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Design strategy of optical probes for tumor hypoxia imaging. SCIENCE CHINA-LIFE SCIENCES 2020; 63:1786-1797. [PMID: 32146696 DOI: 10.1007/s11427-019-1569-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 10/14/2019] [Indexed: 12/19/2022]
Abstract
Clinical manifestations of tumors indicate that malignant phenotypes developing in the hypoxic microenvironment lead to resistance to cancer treatment, rendering chemotherapy, radiotherapy, and photodynamic therapy less sensitive and effective in patients with tumor. Visualizing the oxygen level in the tumor environment has garnered much attention due to its implications in precision tumor therapy. Following the rapid development of biomaterials in nanotechnology, various nanomaterials have been designed to visualize the oxygen levels in tumors. Here, we review recent research on detecting oxygen levels in solid tumors for tumor hypoxia imaging. To monitor the hypoxic level of tumors, two main strategies were investigated: directly detecting oxygen levels in tumors and monitoring the hypoxia-assisted reduced microenvironment. We believe that hypoxia as a tumor-specific microenvironment can be a breakthrough in the clinical treatment of tumors.
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27
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Kwon YD, Lee JY, La MT, Lee SJ, Lee SH, Park JH, Kim HK. Novel multifunctional 18F-labelled PET tracer with prostate-specific membrane antigen-targeting and hypoxia-sensitive moieties. Eur J Med Chem 2020; 189:112099. [PMID: 32014792 DOI: 10.1016/j.ejmech.2020.112099] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 01/19/2020] [Accepted: 01/22/2020] [Indexed: 11/18/2022]
Abstract
Prostate cancer is one of the most frequently found cancers in men worldwide. Prostate-specific membrane antigen (PSMA) is typically highly expressed in prostate cancer, and the Glu-Urea-Lys (GUL) structure has recently received considerable attention as a key unit of PSMA-targeting agents. Additionally, one of the common characteristics of many solid tumors, such as prostate cancer, is hypoxia. In this study, novel multifunctional PSMA inhibitors containing a PSMA-targeting moiety either with or without a hypoxia-sensitive moiety (18F-PEG3-ADIBOT-2NI-GUL and 18F-PEG3-ADIBOT-GUL, respectively; ADIBOT: azadibenzocyclooctatriazole, 2NI: 2-nitroimidazole) were designed and synthesized, and their feasibility as PET tracers for prostate cancer imaging studies was examined. The compounds labelled with 18F via the copper-free click reaction were stable in human serum and showed nanomolar binding affinities in in vitro PSMA binding assays. Micro-PET and biodistribution studies indicate that both 18F-labelled inhibitors successfully accumulated in prostate cancer regions, and 18F-PEG3-ADIBOT-2NI-GUL showed a 2-fold higher tumor-to-total non-target organ ratio than that of 18F-PEG3-ADIBOT-GUL, suggesting that the synergistic effects of the PSMA-targeting GUL moiety and the hypoxia-sensitive 2-nitroimidazole moiety can increase tumor uptake of the novel PET tracers in prostate cancer. These findings suggest that this novel multifunctional PET tracer with an 18F-labelled PSMA inhibitor and a 2-nitroimidazole moiety is a potent candidate to provide better diagnosis of prostate cancer via PET imaging studies.
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Affiliation(s)
- Young-Do Kwon
- Department of Nuclear Medicine, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea; Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Biomedical Research Institute, Jeonbuk National University Medical School and Hospital, Jeonju, 54907, Republic of Korea
| | - Jun Young Lee
- Radiation Instrumentation Research Division, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea
| | - Minh Thanh La
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Biomedical Research Institute, Jeonbuk National University Medical School and Hospital, Jeonju, 54907, Republic of Korea
| | - Sun Joo Lee
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, 41061, Republic of Korea
| | - Sun-Hwa Lee
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, 41061, Republic of Korea
| | - Jeong Hoon Park
- Radiation Instrumentation Research Division, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea.
| | - Hee-Kwon Kim
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center, Biomedical Research Institute, Jeonbuk National University Medical School and Hospital, Jeonju, 54907, Republic of Korea; Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, 54907, Republic of Korea.
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Zhen J, Tian S, Liu Q, Zheng C, Zhang Z, Ding Y, An Y, Liu Y, Shi L. Nanocarriers responsive to a hypoxia gradient facilitate enhanced tumor penetration and improved anti-tumor efficacy. Biomater Sci 2019; 7:2986-2995. [PMID: 31106796 DOI: 10.1039/c9bm00461k] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Because of their abnormal vasculature and the dense tumor extra-cellular matrix, solid tumors prevent the deep and uniform penetration of nanocarriers. Numerous studies have shown that nanocarriers with a positively charged surface exhibit enhanced tumor penetration. Therefore, a hypoxia responsive nanocarrier [responsive micelles (RMs)] was developed, which can gradually increase the positive surface charge by responding to hypoxia gradients, and eventually achieve deep penetration in tumors. The nanocarrier was composed of a poly(caprolactone) core and a mixed shell of poly(ethylene glycol) (PEG) and 4-nitrobenzyl chloroformate (NBCF)-modified polylysine (PLL). During the blood circulation, the NBCF-modified PLL was shielded by the PEG, which gave it the ability to inhibit its rapid removal by the immune system. After reaching the tumor, the hypoxia microenvironment triggered partial NBCF degradation that recovered the amine groups of PLL, leading to a remarkable change in the surface to a positively charged one that enabled the penetration of the nanocarrier into the tumor. As the nanocarrier penetrated into the interior of the tumor, the decrease in oxygen concentration led to the further degradation of the NBCF-modified PLL, resulting in the increase of the positive surface charge which further facilitated the deep penetration. The subsequent in vitro and in vivo experiments certified that RM/doxorubicin had a better penetration ability and improved inhibition efficacy on tumor tissues, which demonstrated its potential application in cancer therapy.
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Affiliation(s)
- Jingru Zhen
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology and Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China.
| | - Shuang Tian
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology and Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China.
| | - Qi Liu
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology and Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China.
| | - Chunxiong Zheng
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology and Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China.
| | - Zhanzhan Zhang
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology and Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China.
| | - Yuxun Ding
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology and Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China.
| | - Yingli An
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology and Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China.
| | - Yang Liu
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology and Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China.
| | - Linqi Shi
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology and Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China.
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Kwon YD, Oh JM, La MT, Chung HJ, Lee SJ, Chun S, Lee SH, Jeong BH, Kim HK. Synthesis and Evaluation of Multifunctional Fluorescent Inhibitors with Synergistic Interaction of Prostate-Specific Membrane Antigen and Hypoxia for Prostate Cancer. Bioconjug Chem 2019; 30:90-100. [PMID: 30485073 DOI: 10.1021/acs.bioconjchem.8b00767] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Prostate cancer is one of the most common cancers in the world. It is widely known that prostate-specific membrane antigen (PSMA) is highly expressed in prostate cancer, and hypoxia is a common characteristic of many solid tumors, including prostate cancer. In this study, we designed multifunctional fluorescent inhibitors to target PSMA and tumor hypoxia in order to increase the tumor uptake of inhibitors. Novel PSMA inhibitors were prepared using lysine as the backbone to connect three different functional groups: the glutamate-urea-lysine (GUL) structure for inhibiting PSMA, 2-nitroimidazole for the hypoxia-sensitive moiety, and a near-infrared fluorophore (sulfo-Cyanine 5.5). According to the in vitro PSMA binding assay, novel fluorescent inhibitors were demonstrated to have nanomolar binding affinities. Multifunctional inhibitor 2 with one 2-nitroimidazole had a similar inhibitory activity to inhibitor 1 that did not contain the hypoxia targeting moiety, but multifunctional inhibitor 3 with two 2-nitroimidazoles showed lower inhibitory activity than inhibitor 1 due to the bulky structure of the hypoxia-sensitive group. However, in vivo optical imaging and ex vivo biodistribution studies indicated that both multifunctional inhibitors 2 and 3 had higher accumulation in tumors than inhibitor 1 due to a synergistic combination of PSMA and hypoxia targeting moieties. These observations suggest that this novel multifunctional strategy might be a promising approach to improve the diagnosis and therapy of prostate cancer.
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Affiliation(s)
- Young-Do Kwon
- Department of Nuclear Medicine , Yonsei University College of Medicine , 50-1 Yonsei-ro , Seodaemun-gu, Seoul 03722 , Republic of Korea
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center , Chonbuk National University Medical School and Hospital , 20 Geonji-ro , Deokjin-gu, Jeonju 54907 , Republic of Korea
| | - Jung-Mi Oh
- Department of Physiology , Chonbuk National University Medical School , 20 Geonji-ro , Deokjin-gu, Jeonju 54907 , Republic of Korea
| | - Minh Thanh La
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center , Chonbuk National University Medical School and Hospital , 20 Geonji-ro , Deokjin-gu, Jeonju 54907 , Republic of Korea
| | - Hea-Jong Chung
- Department of Biomedical Sciences and Institute for Medical Science , Chonbuk National University Medical School , 20 Geonji-ro , Deokjin-gu, Jeonju 54907 , Republic of Korea
| | - Sun Joo Lee
- New Drug Development Center , Daegu-Gyeongbuk Medical Innovation Foundation , 80 Cheombok-ro , Dong-gu, Daegu 41061 , Republic of Korea
| | - Sungkun Chun
- Department of Physiology , Chonbuk National University Medical School , 20 Geonji-ro , Deokjin-gu, Jeonju 54907 , Republic of Korea
| | - Sun-Hwa Lee
- New Drug Development Center , Daegu-Gyeongbuk Medical Innovation Foundation , 80 Cheombok-ro , Dong-gu, Daegu 41061 , Republic of Korea
| | - Byung-Hoon Jeong
- Korea Zoonosis Research Institute , Chonbuk National University , 820-120 Hana-ro , Iksan 54531 , Republic of Korea
| | - Hee-Kwon Kim
- Department of Nuclear Medicine, Molecular Imaging & Therapeutic Medicine Research Center , Chonbuk National University Medical School and Hospital , 20 Geonji-ro , Deokjin-gu, Jeonju 54907 , Republic of Korea
- Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, 20 Geonji-ro , Deokjin-gu, Jeonju 54907 , Republic of Korea
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Gulfam M, Sahle FF, Lowe TL. Design strategies for chemical-stimuli-responsive programmable nanotherapeutics. Drug Discov Today 2019; 24:129-147. [PMID: 30292916 PMCID: PMC6372326 DOI: 10.1016/j.drudis.2018.09.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 08/06/2018] [Accepted: 09/26/2018] [Indexed: 02/06/2023]
Abstract
Chemical-stimuli-responsive nanotherapeutics have gained great interest in drug delivery and diagnosis applications. These nanotherapeutics are designed to respond to specific internal stimuli including pH, ionic strength, redox, reactive oxygen species, glucose, enzymes, ATP and hypoxia for site-specific and responsive or triggered release of payloads and/or biomarker detections. This review systematically and comprehensively addresses up-to-date technological and design strategies, and challenges nanomaterials to be used for triggered release and sensing in response to chemical stimuli.
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Affiliation(s)
- Muhammad Gulfam
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Fitsum Feleke Sahle
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Tao L Lowe
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN 38163, USA.
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31
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Khatoon S, Han HS, Jeon J, Rao NV, Jeong DW, Ikram M, Yasin T, Yi GR, Park JH. Hypoxia-Responsive Mesoporous Nanoparticles for Doxorubicin Delivery. Polymers (Basel) 2018; 10:E390. [PMID: 30966424 PMCID: PMC6415200 DOI: 10.3390/polym10040390] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 03/27/2018] [Accepted: 03/28/2018] [Indexed: 12/30/2022] Open
Abstract
Hypoxia, or low oxygen tension, is a common feature of solid tumors. Here, we report hypoxia-responsive mesoporous silica nanoparticles (HR-MSNs) with a 4-nitroimidazole-β-cyclodextrin (NI-CD) complex that is acting as the hypoxia-responsive gatekeeper. When these CD-HR-MSNs encountered a hypoxic environment, the nitroimidazole (NI) gatekeeper portion of CD-HR-MSNs disintegrated through bioreduction of the hydrophobic NI state to the hydrophilic NI state. Under hypoxic conditions, the release rate of doxorubicin (DOX) from DOX-loaded CD-HR-MSNs (DOX-CD-HR-MSNs) increased along with the disintegration of the gatekeeper. Conversely, DOX release was retarded under normoxic conditions. In vitro experiments confirmed that DOX-CD-HR-MSNs exhibit higher toxicity to hypoxic cells when compared to normoxic cells. Confocal microscopy images indicated that DOX-CD-HR-MSNs effectively release DOX into SCC-7 cells under hypoxic conditions. These results demonstrate that CD-HR-MSNs can release drugs in a hypoxia-responsive manner, and thus are promising drug carriers for hypoxia-targeted cancer therapy.
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Affiliation(s)
- Shakera Khatoon
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea.
- Department of Physics and Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad 45650, Pakistan.
| | - Hwa Seung Han
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea.
| | - Jueun Jeon
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea.
| | | | - Dae-Woong Jeong
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea.
| | - M Ikram
- Department of Physics and Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad 45650, Pakistan.
| | - T Yasin
- Department of Material Engineering, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad 45650, Pakistan.
| | - Gi-Ra Yi
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea.
| | - Jae Hyung Park
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea.
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Korea.
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32
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Zhao C, Tong Y, Li X, Shao L, Chen L, Lu J, Deng X, Wang X, Wu Y. Photosensitive Nanoparticles Combining Vascular-Independent Intratumor Distribution and On-Demand Oxygen-Depot Delivery for Enhanced Cancer Photodynamic Therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1703045. [PMID: 29405618 DOI: 10.1002/smll.201703045] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 12/20/2017] [Indexed: 05/13/2023]
Abstract
In drug delivery, the poor tumor perfusion results in disappointing therapeutic efficacy. Nanomedicines for photodynamic therapy (PDT) greatly need deep tumor penetration due to short lifespan and weak diffusion of the cytotoxic reactive oxygen species (ROS). The damage of only shallow cells can easily cause invasiveness and metastasis. Moreover, even if the nanomedicines enter into deeper lesion, the effectiveness of PDT is limited due to the hypoxic microenvironment. Here, a deep penetrating and oxygen self-sufficient PDT nanoparticle is developed for balanced ROS distribution within tumor and efficient cancer therapy. The designed nanoparticles (CNPs/IP) are doubly emulsified (W/O/W) from poly(ethylene glycol)-poly(ε-caprolactone) copolymers doped with photosensitizer IR780 in the O layer and oxygen depot perfluorooctyl bromide (PFOB) inside the core, and functionalized with the tumor penetrating peptide Cys-Arg-Gly-Asp-Lys (CRGDK). The CRGDK modification significantly improves penetration depth of CNPs/IP and makes the CNPs/IP arrive at both the periphery and hypoxic interior of tumors where the PFOB releases oxygen, effectively alleviating hypoxia and guaranteeing efficient PDT performance. The improved intratumoral distribution of photosensitizer and adequate oxygen supply augment the sensitivity of tumor cells to PDT and significantly improve PDT efficiency. Such a nanosystem provides a potential platform for improved therapeutic index in anticancer therapy.
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Affiliation(s)
- Caiyan Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yujia Tong
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Xianlei Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Leihou Shao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Long Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jianqing Lu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Xiongwei Deng
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Xuan Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yan Wu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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Ahmad Z, Majeed S, Shah A. In vitro release and cytotoxicity of cisplatin loaded methoxy poly (ethylene glycol)- block -poly (glutamic acid) nanoparticles against human breast cancer cell lines. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2017.09.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Carboxymethyl dextran-based hypoxia-responsive nanoparticles for doxorubicin delivery. Int J Biol Macromol 2017; 110:399-405. [PMID: 29133095 DOI: 10.1016/j.ijbiomac.2017.11.048] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/17/2017] [Accepted: 11/08/2017] [Indexed: 12/23/2022]
Abstract
In an attempt to develop the hypoxia-responsive nanoparticles for cancer therapy, a polymer conjugate, consisting of carboxymethyl dextran (CMD) and black hole quencher 3 (BHQ3), was prepared. The polymer conjugate can self-assemble into nanoparticles (CMD-BHQ3 NPs) under aqueous conditions. The anticancer drug, doxorubicin (DOX), was loaded in CMD-BHQ3 NPs to prepare DOX@CMD-BHQ3 NPs. The CMD-BHQ3 NPs released DOX in a sustained manner under physiological conditions, whereas the release rate of DOX remarkably increased under hypoxic conditions throughout the cleavage of the azo bond in BHQ3. In vitro cytotoxicity study revealed that DOX@CMD-BHQ3 NPs showed higher toxicity under hypoxic conditions than normoxic conditions. Confocal microscopic images indicated oxygen-dependent intracellular release of DOX from DOX@CMD-BHQ3. In vivo biodistribution study demonstrated that CMD-BHQ3 NPs were preferentially accumulated in the tumor after systemic administration into tumor-bearing mice. Overall, CMD-BHQ3 might be a promising carrier for selective drug release in the hypoxic tumor.
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35
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Effects of hyperoxia on 18F-fluoro-misonidazole brain uptake and tissue oxygen tension following middle cerebral artery occlusion in rodents: Pilot studies. PLoS One 2017; 12:e0187087. [PMID: 29091934 PMCID: PMC5665507 DOI: 10.1371/journal.pone.0187087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 10/15/2017] [Indexed: 12/11/2022] Open
Abstract
PURPOSE Mapping brain hypoxia is a major goal for stroke diagnosis, pathophysiology and treatment monitoring. 18F-fluoro-misonidazole (FMISO) positron emission tomography (PET) is the gold standard hypoxia imaging method. Normobaric hyperoxia (NBO) is a promising therapy in acute stroke. In this pilot study, we tested the straightforward hypothesis that NBO would markedly reduce FMISO uptake in ischemic brain in Wistar and spontaneously hypertensive rats (SHRs), two rat strains with distinct vulnerability to brain ischemia, mimicking clinical heterogeneity. METHODS Thirteen adult male rats were randomized to distal middle cerebral artery occlusion under either 30% O2 or 100% O2. FMISO was administered intravenously and PET data acquired dynamically for 3hrs, after which magnetic resonance imaging (MRI) and tetrazolium chloride (TTC) staining were carried out to map the ischemic lesion. Both FMISO tissue uptake at 2-3hrs and FMISO kinetic rate constants, determined based on previously published kinetic modelling, were obtained for the hypoxic area. In a separate group (n = 9), tissue oxygen partial pressure (PtO2) was measured in the ischemic tissue during both control and NBO conditions. RESULTS As expected, the FMISO PET, MRI and TTC lesion volumes were much larger in SHRs than Wistar rats in both the control and NBO conditions. NBO did not appear to substantially reduce FMISO lesion size, nor affect the FMISO kinetic rate constants in either strain. Likewise, MRI and TTC lesion volumes were unaffected. The parallel study showed the expected increases in ischemic cortex PtO2 under NBO, although these were small in some SHRs with very low baseline PtO2. CONCLUSIONS Despite small samples, the apparent lack of marked effects of NBO on FMISO uptake suggests that in permanent ischemia the cellular mechanisms underlying FMISO trapping in hypoxic cells may be disjointed from PtO2. Better understanding of FMISO trapping processes will be important for future applications of FMISO imaging.
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36
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Evans NR, Tarkin JM, Buscombe JR, Markus HS, Rudd JHF, Warburton EA. PET imaging of the neurovascular interface in cerebrovascular disease. Nat Rev Neurol 2017; 13:676-688. [PMID: 28984315 DOI: 10.1038/nrneurol.2017.129] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cerebrovascular disease encompasses a range of pathologies that affect different components of the cerebral vasculature and brain parenchyma. Large artery atherosclerosis, acute cerebral ischaemia, and intracerebral small vessel disease all demonstrate altered metabolic processes that are key to their pathogenesis. Although structural imaging techniques such as MRI are the mainstay of clinical care and research in cerebrovascular disease, they have limited ability to detect these pathophysiological processes in vivo. By contrast, PET can detect and quantify metabolic processes that are relevant to each facet of cerebrovascular disease. Information obtained from PET studies has helped to shape the understanding of key concepts in cerebrovascular medicine, including vulnerable atherosclerotic plaque, salvageable ischaemic penumbra, neuroinflammation and selective neuronal loss after ischaemic insult. PET has also helped to elucidate the relationships between chronic hypoxia, neuroinflammation, and amyloid-β deposition in cerebral small vessel disease. This Review describes how PET-based imaging of metabolic processes at the neurovascular interface has contributed to our understanding of cerebrovascular disease.
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Affiliation(s)
- Nicholas R Evans
- Department of Clinical Neurosciences, University of Cambridge, Box 83, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
| | - Jason M Tarkin
- Division of Cardiovascular Medicine, Department of Medicine, University of Cambridge, Box 157, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
| | - John R Buscombe
- Department of Nuclear Medicine, Box 219, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge CB2 0QQ, UK
| | - Hugh S Markus
- Department of Clinical Neurosciences, University of Cambridge, Box 83, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
| | - James H F Rudd
- Division of Cardiovascular Medicine, Department of Medicine, University of Cambridge, Box 157, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
| | - Elizabeth A Warburton
- Department of Clinical Neurosciences, University of Cambridge, Box 83, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
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Colgan SP, Campbell EL, Kominsky DJ. Hypoxia and Mucosal Inflammation. ANNUAL REVIEW OF PATHOLOGY-MECHANISMS OF DISEASE 2017; 11:77-100. [PMID: 27193451 DOI: 10.1146/annurev-pathol-012615-044231] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Sites of inflammation are defined by significant changes in metabolic activity. Recent studies have suggested that O2 metabolism and hypoxia play a prominent role in inflammation so-called "inflammatory hypoxia," which results from a combination of recruited inflammatory cells (e.g., neutrophils and monocytes), the local proliferation of multiple cell types, and the activation of multiple O2-consuming enzymes during inflammation. These shifts in energy supply and demand result in localized regions of hypoxia and have revealed the important function off the transcription factor HIF (hypoxia-inducible factor) in the regulation of key target genes that promote inflammatory resolution. Analysis of these pathways has provided multiple opportunities for understanding basic mechanisms of inflammation and has defined new targets for intervention. Here, we review recent work addressing tissue hypoxia and metabolic control of inflammation and immunity.
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Affiliation(s)
- Sean P Colgan
- Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado 80045; .,Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, Colorado 80045
| | - Eric L Campbell
- Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado 80045; .,Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, Colorado 80045
| | - Douglas J Kominsky
- Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, Colorado 80045.,Department of Microbiology and Immunology, Montana State University, Bozeman, Montana 59717
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Amin AM, Ibrahim IT, Abd Elhalim SM. Preparation and preclinical evaluation of radioiodinated secnidazole as a possible tumor imaging agent. RADIOCHEMISTRY 2017; 59:389-395. [DOI: 10.1134/s1066362217040117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Castaneda Vega S, Weinl C, Calaminus C, Wang L, Harant M, Ehrlichmann W, Thiele D, Kohlhofer U, Reischl G, Hempel JM, Ernemann U, Quintanilla Martinez L, Nordheim A, Pichler BJ. Characterization of a novel murine model for spontaneous hemorrhagic stroke using in vivo PET and MR multiparametric imaging. Neuroimage 2017; 155:245-256. [DOI: 10.1016/j.neuroimage.2017.04.071] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 03/29/2017] [Accepted: 04/29/2017] [Indexed: 01/07/2023] Open
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40
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Dai Y, Xu C, Sun X, Chen X. Nanoparticle design strategies for enhanced anticancer therapy by exploiting the tumour microenvironment. Chem Soc Rev 2017; 46:3830-3852. [PMID: 28516983 PMCID: PMC5521825 DOI: 10.1039/c6cs00592f] [Citation(s) in RCA: 653] [Impact Index Per Article: 81.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nanovehicles can efficiently carry and deliver anticancer agents to tumour sites. Compared with normal tissue, the tumour microenvironment has some unique properties, such as vascular abnormalities, hypoxia and acidic pH. There are many types of cells, including tumour cells, macrophages, immune and fibroblast cells, fed by defective blood vessels in the solid tumour. Exploiting the tumour microenvironment can benefit the design of nanoparticles for enhanced therapeutic effectiveness. In this review article, we summarized the recent progress in various nanoformulations for cancer therapy, with a special emphasis on tumour microenvironment stimuli-responsive ones. Numerous tumour microenvironment modulation strategies with promising cancer therapeutic efficacy have also been highlighted. Future challenges and opportunities of design consideration are also discussed in detail. We believe that these tumour microenvironment modulation strategies offer a good chance for the practical translation of nanoparticle formulas into clinic.
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Affiliation(s)
- Yunlu Dai
- Centre for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiang'an South Road, Xiamen 361102, China. and Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, USA.
| | - Can Xu
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, USA.
| | - Xiaolian Sun
- Centre for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiang'an South Road, Xiamen 361102, China.
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, USA.
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Li X, Kim J, Yoon J, Chen X. Cancer-Associated, Stimuli-Driven, Turn on Theranostics for Multimodality Imaging and Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:10.1002/adma.201606857. [PMID: 28370546 PMCID: PMC5544499 DOI: 10.1002/adma.201606857] [Citation(s) in RCA: 248] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 02/11/2017] [Indexed: 04/14/2023]
Abstract
Advances in bioinformatics, genomics, proteomics, and metabolomics have facilitated the development of novel anticancer agents that have decreased side effects and increased safety. Theranostics, systems that have combined therapeutic effects and diagnostic capabilities, have garnered increasing attention recently because of their potential use in personalized medicine, including cancer-targeting treatments for patients. One interesting approach to achieving this potential involves the development of cancer-associated, stimuli-driven, turn on theranostics. Multicomponent constructs of this type would have the capability of selectively delivering therapeutic reagents into cancer cells or tumor tissues while simultaneously generating unique signals that can be readily monitored under both in vitro and in vivo conditions. Specifically, their combined anticancer activities and selective visual signal respond to cancer-associated stimuli, would make these theranostic agents more highly efficient and specific for cancer treatment and diagnosis. This article focuses on the progress of stimuli-responsive turn on theranostics that activate diagnostic signals and release therapeutic reagents in response to the cancer-associated stimuli. The present article not only provides the fundamental backgrounds of diagnostic and therapeutic tools that have been widely utilized for developing theranostic agents, but also discusses the current approaches for developing stimuli-responsive turn on theranostics.
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Affiliation(s)
- Xingshu Li
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 120-750, Korea
| | - Jihoon Kim
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland, 20892, USA
| | - Juyoung Yoon
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 120-750, Korea
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland, 20892, USA
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Jensen-Kondering U, Manavaki R, Ejaz S, Sawiak SJ, Carpenter TA, Fryer TD, Aigbirhio FI, Williamson DJ, Baron JC. Brain hypoxia mapping in acute stroke: Back-to-back T2' MR versus 18F-fluoromisonidazole PET in rodents. Int J Stroke 2017; 12:752-760. [PMID: 28523963 DOI: 10.1177/1747493017706221] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background Mapping the hypoxic brain in acute ischemic stroke has considerable potential for both diagnosis and treatment monitoring. PET using 18F-fluoro-misonidazole (FMISO) is the reference method; however, it lacks clinical accessibility and involves radiation exposure. MR-based T2' mapping may identify tissue hypoxia and holds clinical potential. However, its validation against FMISO imaging is lacking. Here we implemented back-to-back FMISO-PET and T2' MR in rodents subjected to acute middle cerebral artery occlusion. For direct clinical relevance, regions of interest delineating reduced T2' signal areas were manually drawn. Methods Wistar rats were subjected to filament middle cerebral artery occlusion, immediately followed by intravenous FMISO injection. Multi-echo T2 and T2* sequences were acquired twice during FMISO brain uptake, interleaved with diffusion-weighted imaging. Perfusion-weighted MR was also acquired whenever feasible. Immediately following MR, PET data reflecting the history of FMISO brain uptake during MR acquisition were acquired. T2' maps were generated voxel-wise from T2 and T2*. Two raters independently drew T2' lesion regions of interest. FMISO uptake and perfusion data were obtained within T2' consensus regions of interest, and their overlap with the automatically generated FMISO lesion and apparent diffusion coefficient lesion regions of interest was computed. Results As predicted, consensus T2' lesion regions of interest exhibited high FMISO uptake as well as substantial overlap with the FMISO lesion and significant hypoperfusion, but only small overlap with the apparent diffusion coefficient lesion. Overlap of the T2' lesion regions of interest between the two raters was ∼50%. Conclusions This study provides formal validation of T2' to map non-core hypoxic tissue in acute stroke. T2' lesion delineation reproducibility was suboptimal, reflecting unclear lesion borders.
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Affiliation(s)
- Ulf Jensen-Kondering
- 1 Stroke Research Group, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK.,2 Wolfson Brain Imaging Centre, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK.,3 Department of Radiology and Neuroradiology, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Roido Manavaki
- 4 Department of Radiology, University of Cambridge, Cambridge, UK
| | - Sohail Ejaz
- 1 Stroke Research Group, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Stephen J Sawiak
- 2 Wolfson Brain Imaging Centre, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - T Adrian Carpenter
- 2 Wolfson Brain Imaging Centre, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Tim D Fryer
- 2 Wolfson Brain Imaging Centre, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Franklin I Aigbirhio
- 2 Wolfson Brain Imaging Centre, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - David J Williamson
- 2 Wolfson Brain Imaging Centre, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Jean-Claude Baron
- 1 Stroke Research Group, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK.,5 INSERM U894, Université Paris Descartes, Hôpital Sainte-Anne, Paris, France
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43
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Liu JN, Bu W, Shi J. Chemical Design and Synthesis of Functionalized Probes for Imaging and Treating Tumor Hypoxia. Chem Rev 2017; 117:6160-6224. [DOI: 10.1021/acs.chemrev.6b00525] [Citation(s) in RCA: 602] [Impact Index Per Article: 75.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jia-nan Liu
- State
Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P.R. China
| | - Wenbo Bu
- State
Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P.R. China
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P.R. China
| | - Jianlin Shi
- State
Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P.R. China
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44
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Chun C, Zheng L, Colgan SP. Tissue metabolism and host-microbial interactions in the intestinal mucosa. Free Radic Biol Med 2017; 105:86-92. [PMID: 27687211 PMCID: PMC5797701 DOI: 10.1016/j.freeradbiomed.2016.09.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 09/23/2016] [Accepted: 09/26/2016] [Indexed: 01/03/2023]
Abstract
In recent years, studies in the gastrointestinal (GI) mucosa have taught us a number of important lessons related to tissue oxygenation and metabolism in health and disease. The highly vascularized mucosa lies immediately adjacent to an anaerobic lumen containing trillions of metabolically active microbes (i.e. the microbiome) that results in one of the more austere tissue microenvironments in the body. These studies have also implicated a prominent role for oxygen metabolism and hypoxia in inflammation, so called "inflammatory hypoxia", that results from the activation of multiple oxygen consuming enzymes. Inflammation-associated shifts in the composition of the microbiome and microbial-derived metabolites have revealed a prominent role for the transcription factor hypoxia-inducible factor (HIF) in the regulation of key target genes that promote inflammatory resolution. Analyses of these pathways have provided a multitude of opportunities for understanding basic mechanisms of both homeostasis and disease and have defined new targets for intervention. Here, we review recent advances in our understanding of metabolic influences on host-microbe interactions in the GI mucosa.
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Affiliation(s)
- Carlene Chun
- Department of Medicine and the Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, CO, United States
| | - Leon Zheng
- Department of Medicine and the Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, CO, United States
| | - Sean P Colgan
- Department of Medicine and the Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, CO, United States.
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45
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Liu HM, Zhang YF, Xie YD, Cai YF, Li BY, Li W, Zeng LY, Li YL, Yu RT. Hypoxia-responsive ionizable liposome delivery siRNA for glioma therapy. Int J Nanomedicine 2017; 12:1065-1083. [PMID: 28223799 PMCID: PMC5308568 DOI: 10.2147/ijn.s125286] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Here, we report the hypoxia-responsive ionizable liposomes to deliver small interference RNA (siRNA) anticancer drugs, which can selectively enhance cellular uptake of the siRNA under hypoxic and low-pH conditions to cure glioma. For this purpose, malate dehydrogenase lipid molecules were synthesized, which contain nitroimidazole groups that impart hypoxia sensitivity and specificity as hydrophobic tails, and tertiary amines as hydrophilic head groups. These malate dehydrogenase molecules, together with DSPE-PEG2000 and cholesterol, were self-assembled into O'1,O1-(3-(dimethylamino)propane-1,2-diyl) 16-bis(2-(2-methyl-5-nitro-1H-imidazol-1-yl)ethyl) di(hexadecanedioate) liposomes (MLP) to encapsulate siRNA through electrostatic interaction. Our study showed that the MLP could deliver polo-like kinase 1 siRNA (siPLK1) into glioma cells and effectively enhance the cellular uptake of MLP/siPLK1 because of increased positive charges induced by hypoxia and low pH. Moreover, MLP/siPLK1 was shown to be very effective in inhibiting the growth of glioma cells both in vitro and in vivo. Therefore, the MLP is a promising siRNA delivery system for tumor therapy.
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Affiliation(s)
- Hong-Mei Liu
- Department of Neurosurgery, Brain Hospital, Affiliated Hospital of Xuzhou Medical University
- Department of Neurosurgery, Institute of Nervous System Diseases, Xuzhou Medical University
| | - Ya-Fei Zhang
- Department of Neurosurgery, Brain Hospital, Affiliated Hospital of Xuzhou Medical University
- Department of Neurosurgery, Institute of Nervous System Diseases, Xuzhou Medical University
| | - Yan-Dong Xie
- Department of Neurosurgery, Brain Hospital, Affiliated Hospital of Xuzhou Medical University
- Department of Neurosurgery, Institute of Nervous System Diseases, Xuzhou Medical University
| | - Yi-Fan Cai
- Department of Neurosurgery, Brain Hospital, Affiliated Hospital of Xuzhou Medical University
- Department of Neurosurgery, Institute of Nervous System Diseases, Xuzhou Medical University
| | - Bai-Yang Li
- Department of Neurosurgery, Brain Hospital, Affiliated Hospital of Xuzhou Medical University
- Department of Neurosurgery, Institute of Nervous System Diseases, Xuzhou Medical University
| | - Wen Li
- Department of Hematology, Affiliated Hospital of Xuzhou Medical University
| | - Ling-Yu Zeng
- Department of Chemistry, School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou, Jiangsu, People’s Republic of China
| | - Yu-Ling Li
- Department of Chemistry, School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou, Jiangsu, People’s Republic of China
| | - Ru-Tong Yu
- Department of Neurosurgery, Brain Hospital, Affiliated Hospital of Xuzhou Medical University
- Department of Neurosurgery, Institute of Nervous System Diseases, Xuzhou Medical University
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Yu J, Qian C, Zhang Y, Cui Z, Zhu Y, Shen Q, Ligler FS, Buse JB, Gu Z. Hypoxia and H 2O 2 Dual-Sensitive Vesicles for Enhanced Glucose-Responsive Insulin Delivery. NANO LETTERS 2017; 17:733-739. [PMID: 28079384 DOI: 10.1021/acs.nanolett.6b03848] [Citation(s) in RCA: 197] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A glucose-responsive closed-loop insulin delivery system mimicking pancreas activity without long-term side effect has the potential to improve diabetic patients' health and quality of life. Here, we developed a novel glucose-responsive insulin delivery device using a painless microneedle-array patch containing insulin-loaded vesicles. Formed by self-assembly of hypoxia and H2O2 dual-sensitive diblock copolymer, the glucose-responsive polymersome-based vesicles (d-GRPs) can disassociate and subsequently release insulin triggered by H2O2 and hypoxia generated during glucose oxidation catalyzed by glucose specific enzyme. Moreover, the d-GRPs were able to eliminate the excess H2O2, which may lead to free radical-induced damage to skin tissue during the long-term usage and reduce the activity of GOx. In vivo experiments indicated that this smart insulin patch could efficiently regulate the blood glucose in the chemically induced type 1 diabetic mice for 10 h.
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Affiliation(s)
- Jicheng Yu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University , Raleigh, North Carolina 27695, United States
- Center for Nanotechnology in Drug Delivery and Division of Molecular Pharmaceutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Chenggen Qian
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University , Raleigh, North Carolina 27695, United States
- Department of Polymer Science & Engineering and Key Laboratory of High Performance Polymer Materials & Technology of MOE, School of Chemistry & Chemical Engineering, Nanjing University , Nanjing, 210023, China
| | - Yuqi Zhang
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University , Raleigh, North Carolina 27695, United States
- Center for Nanotechnology in Drug Delivery and Division of Molecular Pharmaceutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Zheng Cui
- Department of Mechanical and Aerospace Engineering, North Carolina State University , Raleigh, North Carolina 27695, United States
| | - Yong Zhu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University , Raleigh, North Carolina 27695, United States
- Department of Mechanical and Aerospace Engineering, North Carolina State University , Raleigh, North Carolina 27695, United States
| | - Qundong Shen
- Department of Polymer Science & Engineering and Key Laboratory of High Performance Polymer Materials & Technology of MOE, School of Chemistry & Chemical Engineering, Nanjing University , Nanjing, 210023, China
| | - Frances S Ligler
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University , Raleigh, North Carolina 27695, United States
| | - John B Buse
- Department of Medicine, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Zhen Gu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University , Raleigh, North Carolina 27695, United States
- Center for Nanotechnology in Drug Delivery and Division of Molecular Pharmaceutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
- Department of Medicine, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
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Kang L, Fan B, Sun P, Huang W, Jin M, Wang Q, Gao Z. An effective tumor-targeting strategy utilizing hypoxia-sensitive siRNA delivery system for improved anti-tumor outcome. Acta Biomater 2016; 44:341-54. [PMID: 27545812 DOI: 10.1016/j.actbio.2016.08.029] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 07/30/2016] [Accepted: 08/17/2016] [Indexed: 12/12/2022]
Abstract
UNLABELLED Hypoxia is a feature of most solid tumors, targeting hypoxia is considered as the best validated yet not extensively exploited strategy in cancer therapy. Here, we reported a novel tumor-targeting strategy using a hypoxia-sensitive siRNA delivery system. In the study, 2-nitroimidazole (NI), a hydrophobic component that can be converted to hydrophilic 2-aminoimidazole (AI) through bioreduction under hypoxic conditions, was conjugated to the alkylated polyethyleneimine (bPEI1.8k-C6) to form amphiphilic bPEI1.8k-C6-NI polycations. bPEI1.8k-C6-NI could self-assemble into micelle-like aggregations in aqueous, which contributed to the improved stability of the bPEI1.8k-C6-NI/siRNA polyplexes, resulted in increased cellular uptake. After being transported into the hypoxic tumor cells, the selective nitro-to-amino reduction would cause structural change and elicit a relatively loose structure to facilitate the siRNA dissociation in the cytoplasm, for enhanced gene silencing efficiency ultimately. Therefore, the conflict between the extracellular stability and the intracellular siRNA release ability of the polyplexes was solved by introducing the hypoxia-responsive unit. Consequently, the survivin-targeted siRNA loaded polyplexes shown remarkable anti-tumor effect not only in hypoxic cells, but also in tumor spheroids and tumor-bearing mice, indicating that the hypoxia-sensitive siRNA delivery system had great potential for tumor-targeted therapy. STATEMENT OF SIGNIFICANCE Hypoxia is one of the most remarkable features of most solid tumors, and targeting hypoxia is considered as the best validated strategy in cancer therapy. However, in the past decades, there were few reports about using this strategy in the drug delivery system, especially in siRNA delivery system. Therefore, we constructed a hypoxia-sensitive siRNA delivery system utilizing a hypoxia-responsive unit, 2-nitroimidazole, by which the unavoidable conflict between improved extracellular stability and promoted intracellular siRNA release in the same delivery system could be effectively solved, resulting in enhanced siRNA silencing efficiency in tumor cells. To our knowledge, the described work is the first demonstration of a siRNA delivery system using a hypoxia trigger for regulation of siRNA release, which represents a new strategy for tumor-targeted therapy, and it is expected that this meaningful strategy must be widely applied in the future.
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Affiliation(s)
- Lin Kang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing City Key Laboratory of Drug Delivery Technology and Novel Formulations, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Bo Fan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing City Key Laboratory of Drug Delivery Technology and Novel Formulations, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Ping Sun
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing City Key Laboratory of Drug Delivery Technology and Novel Formulations, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Wei Huang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing City Key Laboratory of Drug Delivery Technology and Novel Formulations, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Mingji Jin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing City Key Laboratory of Drug Delivery Technology and Novel Formulations, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Qiming Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing City Key Laboratory of Drug Delivery Technology and Novel Formulations, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Zhonggao Gao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing City Key Laboratory of Drug Delivery Technology and Novel Formulations, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
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Abstract
PURPOSE OF REVIEW This article provides an overview of the recent literature regarding the application of in-vivo brain imaging techniques to animal models of ischemic stroke. RECENT FINDINGS Major breakthroughs concerned the effects of sensory stimulation on neuronal function, local hemodynamics, and tissue outcome in the hyperacute phase of stroke; the novel application to stroke of hybrid scanners allowing simultaneous PET and magnetic resonance; the refinements of magnetic resonance-based oxygen imaging, allowing to map the ischemic penumbra in a completely noninvasive way; the implementation of new PET ligands to selectively map poststroke neuronal death and neuroinflammation; and the use of novel mesoscale imaging techniques to demonstrate the major role of interhemispheric connectivity in poststroke plasticity and functional recovery. SUMMARY The array of techniques to map in vivo the key pathophysiological brain processes involved in stroke is currently enlarging at an amazing pace. This is paralleled by ever-increasing sophistication in postprocessing tools. The combination of techniques allowing simultaneous access to several variables is particularly powerful as it affords unprecedented insights into the intimate processes underlying the tissue and neuronal changes that follow a stroke. These major leaps forward will hopefully lead to therapeutic breakthroughs aiming at improving functional outcome after stroke.
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49
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Hypoxia-Sensitive Materials for Biomedical Applications. Ann Biomed Eng 2016; 44:1931-45. [DOI: 10.1007/s10439-016-1578-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Accepted: 02/23/2016] [Indexed: 10/22/2022]
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50
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Safronova MM, Colliez F, Magat J, Joudiou N, Jordan BF, Raftopoulos C, Gallez B, Duprez T. Mapping of global R1 and R2* values versus lipids R1 values as potential markers of hypoxia in human glial tumors: A feasibility study. Magn Reson Imaging 2016; 34:105-13. [DOI: 10.1016/j.mri.2015.10.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 09/25/2015] [Accepted: 10/25/2015] [Indexed: 01/08/2023]
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