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Winuprasith T, Koirala P, McClements DJ, Khomein P. Emulsion Technology in Nuclear Medicine: Targeted Radionuclide Therapies, Radiosensitizers, and Imaging Agents. Int J Nanomedicine 2023; 18:4449-4470. [PMID: 37555189 PMCID: PMC10406121 DOI: 10.2147/ijn.s416737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 07/19/2023] [Indexed: 08/10/2023] Open
Abstract
Radiopharmaceuticals serve as a major part of nuclear medicine contributing to both diagnosis and treatment of several diseases, especially cancers. Currently, most radiopharmaceuticals are based on small molecules with targeting ability. However, some concerns over their stability or non-specific interactions leading to off-target localization are among the major challenges that need to be overcome. Emulsion technology has great potential for the fabrication of carrier systems for radiopharmaceuticals. It can be used to create particles with different compositions, structures, sizes, and surface characteristics from a wide range of generally recognized as safe (GRAS) materials, which allows their functionality to be tuned for specific applications. In particular, it is possible to carry out surface modifications to introduce targeting and stealth properties, as well as to control the particle dimensions to manipulate diffusion and penetration properties. Moreover, emulsion preparation methods are usually simple, economic, robust, and scalable, which makes them suitable for medical applications. In this review, we highlight the potential of emulsion technology in nuclear medicine for developing targeted radionuclide therapies, for use as radiosensitizers, and for application in radiotracer delivery in gamma imaging techniques.
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Affiliation(s)
| | - Pankaj Koirala
- Institute of Nutrition, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - David J McClements
- Department of Food Science, University of Massachusetts Amherst, Amherst, MA, 01003, USA
| | - Piyachai Khomein
- Division of Nuclear Medicine, Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
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van den Bovenkamp K, van der Vegt B, Halmos GB, Slagter-Menkema L, Langendijk JA, van Dijk BAC, Schuuring E, van der Laan BFAM. The relation between hypoxia and proliferation biomarkers with radiosensitivity in locally advanced laryngeal cancer. Eur Arch Otorhinolaryngol 2023; 280:3801-3809. [PMID: 37029804 PMCID: PMC10313532 DOI: 10.1007/s00405-023-07951-9] [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: 12/20/2022] [Accepted: 03/28/2023] [Indexed: 04/09/2023]
Abstract
PURPOSE Treatment decision-making in advanced-stage laryngeal squamous cell carcinoma (LSCC) is difficult due to the high recurrence rates and the desire to preserve laryngeal functions. New predictive markers for radiosensitivity are needed to facilitate treatment choices. In early stage glottic LSCC treated with primary radiotherapy, expression of hypoxia (HIF-1α and CA-IX) and proliferation (Ki-67) tumour markers showed prognostic value for local control. The objective of this study is to examine the prognostic value of tumour markers for hypoxia and proliferation on locoregional recurrent disease and disease-specific mortality in a well-defined cohort of patients with locally advanced LSCC treated with primary, curatively intended radiotherapy. METHODS In pre-treatment biopsy tissues from a homogeneous cohort of 61 patients with advanced stage (T3-T4, M0) LSCC primarily treated with radiotherapy, expression of HIF-1α, CA-IX and Ki-67 was evaluated with immunohistochemistry. Demographic data (age and sex) and clinical data (T- and N-status) were retrospectively collected from the medical records. Cox regression analysis was performed to assess the relation between marker expression, demographic and clinical data, and locoregional recurrence and disease-specific mortality. RESULTS Patients with high expression of HIF-1α developed significantly more often a locoregional recurrence (39%) compared to patients with a low expression (21%) (p = 0.002). The expression of CA-IX and Ki-67 showed no association with locoregional recurrent disease. HIF-1α, CA-IX and Ki-67 were not significantly related to disease-specific mortality. Clinical N-status was an independent predictor of recurrent disease (p < 0.001) and disease-specific mortality (p = 0.003). Age, sex and T-status were not related to locoregional recurrent disease or disease-specific mortality. CONCLUSION HIF-1α overexpression and the presence of regional lymph node metastases at diagnosis were independent predictors of locoregional recurrent disease after primary treatment with curatively intended radiotherapy in patients with locally advanced LSCC.
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Affiliation(s)
- Karlijn van den Bovenkamp
- Department of Otorhinolaryngology/Head and Neck Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Bert van der Vegt
- Department of Pathology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9723 GZ Groningen, The Netherlands
| | - Gyorgy B. Halmos
- Department of Otorhinolaryngology/Head and Neck Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Lorian Slagter-Menkema
- Department of Pathology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9723 GZ Groningen, The Netherlands
| | - Johannes A. Langendijk
- Department of Radiotherapy, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Boukje A. C. van Dijk
- Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Department of Research and Development, Netherlands Comprehensive Cancer Organisation (IKNL), Utrecht, The Netherlands
| | - Ed Schuuring
- Department of Pathology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9723 GZ Groningen, The Netherlands
| | - Bernard F. A. M. van der Laan
- Department of Otorhinolaryngology/Head and Neck Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Present Address: Department of Otorhinolaryngology/Head and Neck Surgery, Haaglanden Medical Center, The Hague, The Netherlands
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Lickliter JD, Ruben J, Kichenadasse G, Jennens R, Gzell C, Mason RP, Zhou H, Becker J, Unger E, Stea B. Dodecafluoropentane Emulsion as a Radiosensitizer in Glioblastoma Multiforme. CANCER RESEARCH COMMUNICATIONS 2023; 3:1607-1614. [PMID: 37609003 PMCID: PMC10441549 DOI: 10.1158/2767-9764.crc-22-0433] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 03/13/2023] [Accepted: 07/17/2023] [Indexed: 08/24/2023]
Abstract
Purpose Glioblastoma multiforme (GBM) is a hypoxic tumor resistant to radiotherapy. The purpose of this study was to assess the safety and efficacy of a novel oxygen therapeutic, dodecafluoropentane emulsion (DDFPe), in chemoradiation treatment of GBM. Experimental Design In this multicenter phase Ib/II dose-escalation study, patients were administered DDFPe via intravenous infusion (0.05, 0.10, or 0.17 mL/kg) while breathing supplemental oxygen prior to each 2 Gy fraction of radiotherapy (30 fractions over 6 weeks). Patients also received standard-of-care chemotherapy [temozolomide (TMZ)]. Serial MRI scans were taken to monitor disease response. Adverse events were recorded and graded. TOLD (tissue oxygenation level-dependent) contrast MRI was obtained to validate modulation of tumor hypoxia. Results Eleven patients were enrolled. DDFPe combined with radiotherapy and TMZ was well tolerated in most patients. Two patients developed delayed grade 3 radiation necrosis during dose escalation, one each at 0.1 and 0.17 mL/kg of DDFPe. Subsequent patients were treated at the 0.1 mL/kg dose level. Kaplan-Meier analysis showed a median overall survival of 19.4 months and a median progression-free survival of 9.6 months, which compares favorably to historical controls. Among 6 patients evaluable for TOLD MRI, a statistically significant reduction in tumor T1 was observed after DDFPe treatment. Conclusions This trial, although small, showed that the use of DDFPe as a radiosensitizer in patients with GBM was generally safe and may provide a survival benefit. This is also the first time than TOLD MRI has shown reversal of tumor hypoxia in a clinical trial in patients. The recommended dose for phase II evaluation is 0.1 mL/kg DDFPe.Trial Registration: NCT02189109. Significance This study shows that DDFPe can be safely administered to patients, and it is the first-in-human study to show reversal of hypoxia in GBM as measured by TOLD MRI. This strategy is being used in a larger phase II/III trial which will hopefully show a survival benefit by adding DDFPe during the course of fractionated radiation and concurrent chemotherapy.
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Affiliation(s)
| | - Jeremy Ruben
- Monash University, The Alfred Hospital, Melbourne, Victoria, Australia
| | - Ganessan Kichenadasse
- Flinders Centre for Innovation in Cancer, Flinders Medical Centre, Adelaide, South Australia, Australia
| | - Ross Jennens
- Epworth Healthcare, Richmond, Victoria, Australia
| | - Cecelia Gzell
- Genesis Care, St. Vincent's Hospital, Sydney, New South Wales, Australia
| | | | - Heling Zhou
- Department of Radiology, UT Southwestern, Dallas, Texas
| | | | | | - Baldassarre Stea
- Department of Radiation Oncology, University of Arizona, Tucson, Arizona
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Graván P, Aguilera-Garrido A, Marchal JA, Navarro-Marchal SA, Galisteo-González F. Lipid-core nanoparticles: Classification, preparation methods, routes of administration and recent advances in cancer treatment. Adv Colloid Interface Sci 2023; 314:102871. [PMID: 36958181 DOI: 10.1016/j.cis.2023.102871] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 02/03/2023] [Accepted: 03/06/2023] [Indexed: 03/11/2023]
Abstract
Nanotechnological drug delivery platforms represent a new paradigm for cancer therapeutics as they improve the pharmacokinetic profile and distribution of chemotherapeutic agents over conventional formulations. Among nanoparticles, lipid-based nanoplatforms possessing a lipid core, that is, lipid-core nanoparticles (LCNPs), have gained increasing interest due to lipid properties such as high solubilizing potential, versatility, biocompatibility, and biodegradability. However, due to the wide spectrum of morphologies and types of LCNPs, there is a lack of consensus regarding their terminology and classification. According to the current state-of-the-art in this critical review, LCNPs are defined and classified based on the state of their lipidic components in liquid lipid nanoparticles (LLNs). These include lipid nanoemulsions (LNEs) and lipid nanocapsules (LNCs), solid lipid nanoparticles (SLNs) and nanostructured lipid nanocarriers (NLCs). In addition, we present a comprehensive and comparative description of the methods employed for their preparation, routes of administration and the fundamental role of physicochemical properties of LCNPs for efficient antitumoral drug-delivery application. Market available LCNPs, clinical trials and preclinical in vivo studies of promising LCNPs as potential treatments for different cancer pathologies are summarized.
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Affiliation(s)
- Pablo Graván
- Department of Applied Physics, Faculty of Science, University of Granada, 18071 Granada, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, 18016 Granada, Spain; Instituto de Investigación Biosanitaria de Granada ibs.GRANADA, 18012 Granada, Spain; Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, 18016 Granada, Spain; Excellence Research Unit Modelling Nature (MNat), University of Granada, 18016 Granada, Spain; BioFab i3D - Biofabrication and 3D (bio)printing laboratory, University of Granada, 18100 Granada, Spain
| | - Aixa Aguilera-Garrido
- Department of Applied Physics, Faculty of Science, University of Granada, 18071 Granada, Spain
| | - Juan Antonio Marchal
- Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, 18016 Granada, Spain; Instituto de Investigación Biosanitaria de Granada ibs.GRANADA, 18012 Granada, Spain; Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, 18016 Granada, Spain; Excellence Research Unit Modelling Nature (MNat), University of Granada, 18016 Granada, Spain; BioFab i3D - Biofabrication and 3D (bio)printing laboratory, University of Granada, 18100 Granada, Spain
| | - Saúl A Navarro-Marchal
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, 18016 Granada, Spain; Excellence Research Unit Modelling Nature (MNat), University of Granada, 18016 Granada, Spain; Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, EH4 2XU Edinburgh, UK.
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Zhou R, Zhao D, Beeraka NM, Wang X, Lu P, Song R, Chen K, Liu J. Novel Implications of Nanoparticle-Enhanced Radiotherapy and Brachytherapy: Z-Effect and Tumor Hypoxia. Metabolites 2022; 12:943. [PMID: 36295845 PMCID: PMC9612299 DOI: 10.3390/metabo12100943] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 09/28/2022] [Accepted: 09/30/2022] [Indexed: 10/29/2023] Open
Abstract
Radiotherapy and internal radioisotope therapy (brachytherapy) induce tumor cell death through different molecular signaling pathways. However, these therapies in cancer patients are constrained by dose-related adverse effects and local discomfort due to the prolonged exposure to the surrounding tissues. Technological advancements in nanotechnology have resulted in synthesis of high atomic elements such as nanomaterials, which can be used as radiosensitizers due to their photoelectric characteristics. The aim of this review is to elucidate the effects of novel nanomaterials in the field of radiation oncology to ameliorate dose-related toxicity through the application of ideal nanoparticle-based radiosensitizers such as Au (gold), Bi (bismuth), and Lu (Lutetium-177) for enhancing cytotoxic effects of radiotherapy via the high-Z effect. In addition, we discuss the role of nanoparticle-enhanced radiotherapy in alleviating tumor hypoxia through the nanodelivery of genes/drugs and other functional anticancer molecules. The implications of engineered nanoparticles in preclinical and clinical studies still need to be studied in order to explore potential mechanisms for radiosensitization by minimizing tumor hypoxia, operational/logistic complications and by overcoming tumor heterogeneity in radiotherapy/brachytherapy.
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Affiliation(s)
- Runze Zhou
- Department of Radiation Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Di Zhao
- Endocrinology Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Narasimha M. Beeraka
- Department of Radiation Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
- Department of Pharmaceutical Chemistry, Jagadguru Sri Shivarathreeswara Academy of Higher Education and Research (JSS AHER), Jagadguru Sri Shivarathreeswara College of Pharmacy, Mysuru 570015, India
- Department of Human Anatomy, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), 119991 Moscow, Russia
| | - Xiaoyan Wang
- Endocrinology Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Pengwei Lu
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Ruixia Song
- Department of Radiation Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Kuo Chen
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Junqi Liu
- Department of Radiation Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
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6
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Zhang Y, Wu L, Wang Z, Wang J, Roychoudhury S, Tomasik B, Wu G, Wang G, Rao X, Zhou R. Replication Stress: A Review of Novel Targets to Enhance Radiosensitivity-From Bench to Clinic. Front Oncol 2022; 12:838637. [PMID: 35875060 PMCID: PMC9305609 DOI: 10.3389/fonc.2022.838637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 06/15/2022] [Indexed: 11/22/2022] Open
Abstract
DNA replication is a process fundamental in all living organisms in which deregulation, known as replication stress, often leads to genomic instability, a hallmark of cancer. Most malignant tumors sustain persistent proliferation and tolerate replication stress via increasing reliance to the replication stress response. So whilst replication stress induces genomic instability and tumorigenesis, the replication stress response exhibits a unique cancer-specific vulnerability that can be targeted to induce catastrophic cell proliferation. Radiation therapy, most used in cancer treatment, induces a plethora of DNA lesions that affect DNA integrity and, in-turn, DNA replication. Owing to radiation dose limitations for specific organs and tumor tissue resistance, the therapeutic window is narrow. Thus, a means to eliminate or reduce tumor radioresistance is urgently needed. Current research trends have highlighted the potential of combining replication stress regulators with radiation therapy to capitalize on the high replication stress of tumors. Here, we review the current body of evidence regarding the role of replication stress in tumor progression and discuss potential means of enhancing tumor radiosensitivity by targeting the replication stress response. We offer new insights into the possibility of combining radiation therapy with replication stress drugs for clinical use.
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Affiliation(s)
- Yuewen Zhang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lei Wu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhao Wang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jinpeng Wang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shrabasti Roychoudhury
- Division of Radiation and Genome Stability, Department of Radiation Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States
| | - Bartlomiej Tomasik
- Department of Oncology and Radiotherapy, Medical University of Gdansk, Gdansk, Poland
| | - Gang Wu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Geng Wang
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xinrui Rao
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rui Zhou
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Bilynsky C, Millot N, Papa A. Radiation nanosensitizers in cancer therapy-From preclinical discoveries to the outcomes of early clinical trials. Bioeng Transl Med 2022; 7:e10256. [PMID: 35079631 PMCID: PMC8780058 DOI: 10.1002/btm2.10256] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 07/05/2021] [Accepted: 08/12/2021] [Indexed: 12/31/2022] Open
Abstract
Improving the efficacy and spatial targeting of radiation therapy while sparing surrounding normal tissues has been a guiding principle for its use in cancer therapy. Nanotechnologies have shown considerable growth in terms of innovation and the development of new therapeutic approaches, particularly as radiosensitizers. The aim of this study was to systematically review how nanoparticles (NPs) are used to enhance the radiotherapeutic effect, including preclinical and clinical studies. Clinicaltrials.gov was used to perform the search using the following terms: radiation, cancer, and NPs. In this review, we describe the various designs of nano-radioenhancers, the rationale for using such technology, as well as their chemical and biological effects. Human trials are then discussed with an emphasis on their design and detailed clinical outcomes.
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Affiliation(s)
- Colette Bilynsky
- Department of Biomedical EngineeringThe George Washington UniversityWashingtonDistrict of ColumbiaUSA
- Present address:
Department of Biomedical EngineeringCarnegie Mellon UniversityPittsburghPennsylvaniaUSA
| | - Nadine Millot
- Laboratoire Interdisciplinaire Carnot de BourgogneUMR 6303, CNRS, Université Bourgogne Franche‐ComtéDijon CedexFrance
| | - Anne‐Laure Papa
- Department of Biomedical EngineeringThe George Washington UniversityWashingtonDistrict of ColumbiaUSA
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Krafft MP, Riess JG. Therapeutic oxygen delivery by perfluorocarbon-based colloids. Adv Colloid Interface Sci 2021; 294:102407. [PMID: 34120037 DOI: 10.1016/j.cis.2021.102407] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 03/18/2021] [Accepted: 03/25/2021] [Indexed: 02/06/2023]
Abstract
After the protocol-related indecisive clinical trial of Oxygent, a perfluorooctylbromide/phospholipid nanoemulsion, in cardiac surgery, that often unduly assigned the observed untoward effects to the product, the development of perfluorocarbon (PFC)-based O2 nanoemulsions ("blood substitutes") has come to a low. Yet, significant further demonstrations of PFC O2-delivery efficacy have continuously been reported, such as relief of hypoxia after myocardial infarction or stroke; protection of vital organs during surgery; potentiation of O2-dependent cancer therapies, including radio-, photodynamic-, chemo- and immunotherapies; regeneration of damaged nerve, bone or cartilage; preservation of organ grafts destined for transplantation; and control of gas supply in tissue engineering and biotechnological productions. PFC colloids capable of augmenting O2 delivery include primarily injectable PFC nanoemulsions, microbubbles and phase-shift nanoemulsions. Careful selection of PFC and other colloid components is critical. The basics of O2 delivery by PFC nanoemulsions will be briefly reminded. Improved knowledge of O2 delivery mechanisms has been acquired. Advanced, size-adjustable O2-delivering nanoemulsions have been designed that have extended room-temperature shelf-stability. Alternate O2 delivery options are being investigated that rely on injectable PFC-stabilized microbubbles or phase-shift PFC nanoemulsions. The latter combine prolonged circulation in the vasculature, capacity for penetrating tumor tissues, and acute responsiveness to ultrasound and other external stimuli. Progress in microbubble and phase-shift emulsion engineering, control of phase-shift activation (vaporization), understanding and control of bubble/ultrasound/tissue interactions is discussed. Control of the phase-shift event and of microbubble size require utmost attention. Further PFC-based colloidal systems, including polymeric micelles, PFC-loaded organic or inorganic nanoparticles and scaffolds, have been devised that also carry substantial amounts of O2. Local, on-demand O2 delivery can be triggered by external stimuli, including focused ultrasound irradiation or tumor microenvironment. PFC colloid functionalization and targeting can help adjust their properties for specific indications, augment their efficacy, improve safety profiles, and expand the range of their indications. Many new medical and biotechnological applications involving fluorinated colloids are being assessed, including in the clinic. Further uses of PFC-based colloidal nanotherapeutics will be briefly mentioned that concern contrast diagnostic imaging, including molecular imaging and immune cell tracking; controlled delivery of therapeutic energy, as for noninvasive surgical ablation and sonothrombolysis; and delivery of drugs and genes, including across the blood-brain barrier. Even when the fluorinated colloids investigated are designed for other purposes than O2 supply, they will inevitably also carry and deliver a certain amount of O2, and may thus be considered for O2 delivery or co-delivery applications. Conversely, O2-carrying PFC nanoemulsions possess by nature a unique aptitude for 19F MR imaging, and hence, cell tracking, while PFC-stabilized microbubbles are ideal resonators for ultrasound contrast imaging and can undergo precise manipulation and on-demand destruction by ultrasound waves, thereby opening multiple theranostic opportunities.
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Affiliation(s)
- Marie Pierre Krafft
- University of Strasbourg, Institut Charles Sadron (CNRS), 23 rue du Loess, 67034 Strasbourg, France.
| | - Jean G Riess
- Harangoutte Institute, 68160 Ste Croix-aux-Mines, France
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9
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Lacerda Q, Tantawi M, Leeper DB, Wheatley MA, Eisenbrey JR. Emerging Applications of Ultrasound-Contrast Agents in Radiation Therapy. ULTRASOUND IN MEDICINE & BIOLOGY 2021; 47:1465-1474. [PMID: 33653626 PMCID: PMC8044052 DOI: 10.1016/j.ultrasmedbio.2021.01.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/25/2021] [Accepted: 01/30/2021] [Indexed: 05/29/2023]
Abstract
Radiation therapy (RT) causes DNA damage through ionization, leading to double-strand breaks. In addition, it generates reactive oxygen species (ROS), which are toxic to tumor cells and the vasculature. However, hypoxic regions in the tumor have been shown to not only decrease treatment response but also increase the likelihood of recurrence and metastasis. Ultrasound-sensitive micro-bubbles are emerging as a useful diagnostic and therapeutic tool within RT. Contrast-enhanced ultrasound (CEUS) has shown great promise in early prediction of tumor response to RT. Ultrasound-triggered micro-bubble cavitation has also been shown to induce bio-effects that can sensitize angiogenic tumor vessels to RT. Additionally, ultrasound can trigger the release of drugs from micro-bubble carriers via localized micro-bubble destruction. This approach has numerous applications in RT, including targeted oxygen delivery before radiotherapy. Furthermore, micro-bubbles can be used to locally create ROS without radiation. Sonodynamic therapy uses focused ultrasound and a sonosensitizer to selectively produce ROS in the tumor region and has been explored as a treatment option for cancer. This review summarizes emerging applications of ultrasound contrast agents in RT and ROS augmentation.
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Affiliation(s)
- Quezia Lacerda
- School of Biomedical Engineering and Health Sciences, Drexel University, Philadelphia, Pennsylvania, USA; Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Mohamed Tantawi
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Dennis B Leeper
- Department of Radiation Oncology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Margaret A Wheatley
- School of Biomedical Engineering and Health Sciences, Drexel University, Philadelphia, Pennsylvania, USA
| | - John R Eisenbrey
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
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Krafft MP. Alleviating tumor hypoxia with perfluorocarbon-based oxygen carriers. Curr Opin Pharmacol 2020; 53:117-125. [PMID: 32979727 DOI: 10.1016/j.coph.2020.08.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/02/2020] [Accepted: 08/20/2020] [Indexed: 11/18/2022]
Abstract
Hypoxia is a major impediment to many foremost cancer treatments that require O2 for generation of tumoricidal reactive oxygen species. Liquid perfluorocarbons (PFCs) are inert gas solvents that help alleviate this oxygen deficit situation. PFC nanoemulsions have demonstrated oxygen delivery to tissues. The lifetime of 1O2 in PFCs is considerably expanded. PFC nanodroplets extravasate and accumulate in tumors. Alternatively, PFCs stabilize injectable O2 microbubbles. On-demand local O2 delivery is facilitated by ultrasound. Liquid PFC nanodroplets that convert into microbubbles upon activation provide another shuttle for O2-delivery. PFC nanocarriers can also be enriched with fluorescent dyes, radiopaque materials, photo(sono)sensitizers, loaded with chemotherapeutics, and fitted with targeting devices, or stimuli-responsive functions for image-guided theranostics. We review recent literature on PFC-based O2 carriers to enhance the efficacy of radiotherapy, photo(sono)dynamic therapy and chemotherapy. Of particular relevance to this series of reviews, PFC-based carriers may provide novel strategies to promote T-cell trafficking into tumors to improve immune responses.
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Affiliation(s)
- Marie Pierre Krafft
- University of Strasbourg, Institut Charles Sadron (CNRS), 23 rue du Loess, 67034, Strasbourg, France.
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11
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Dodecafluoropentane Emulsion (DDFPE) as a Resuscitation Fluid for Treatment of Hemorrhagic Shock and Traumatic Brain Injury: A Review. Shock 2020; 52:50-54. [PMID: 29176401 DOI: 10.1097/shk.0000000000001060] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Dodecafluoropentane emulsion (DDFPe) is a novel nanotechnology for oxygen delivery with therapeutic potential for hemorrhagic shock and/or traumatic brain injury (TBI). DDFPe demonstrates efficacy at smaller doses than previously tested perfluorocarbon oxygen therapeutics. This smaller dose potentially eliminates toxicities exhibited by previous oxygen therapeutics, whereas anti-inflammatory properties of DDFPe may alleviate damage from ischemia reperfusion injury. This minireview summarizes our progress in developing a battlefield-ready product to prevent combat death due to hemorrhagic shock and/or TBI. Preclinical studies, for both indications, show promising effects of DDFPe as a resuscitation fluid. DDFPe may become a part of the toolkit for tactical healthcare professionals in battlefield and domestic emergency medicine.
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Zakeri K, Narayanan D, Prasanna PGS, Vikram B, Buchsbaum JC. Development of Novel Radiosensitizers through the National Cancer Institute's Small Business Innovation Research Program. Radiat Res 2020; 193:425-434. [PMID: 32216707 DOI: 10.1667/rr15545.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
While radiosensitizing chemotherapy has improved survival for several types of cancer, current chemoradiation regimens remain ineffective for many patients and have substantial toxicities. Given the strong need for the development of novel radiosensitizers to further improve patient outcomes, the Radiation Research Program (RRP) and the Small Business Innovation Research (SBIR) in the National Cancer Institute (NCI) issued a Request for Proposals (RFP) through the NCI SBIR Development Center's contracts pathway. We sought to determine the research outcomes for the NCI SBIR Development Center's funded proposals for the development of radiosensitizers. We identified SBIR-funded contracts and grants for the development of radiosensitizers from 2009 to 2018 using the National Institutes of Health (NIH) Reporter database. Research outcomes of the NCI SBIR Development Center-funded proposals were determined using a comprehensive internet search. We searched PubMed, clinicaltrials.gov, company websites and google.com for research articles, abstracts and posters, clinical trials, press releases and other news, related to progress in the development of funded radiosensitizers. To protect the intellectual property of the investigators and small businesses, all information obtained and reported is publicly available. The SBIR Program has funded four contracts and 11 grants for the development of novel radiosensitizers. Two companies have received phase IIb bridge awards. Overall, 50% of companies (6/12) have successfully advanced their investigational drugs into prospective clinical trials in cancer patients, and all but one company are investigating their drug in combination with radiation therapy as described in the NCI SBIR Development Center proposal. To date, only one company has initiated a randomized trial of standard of care with or without their radiosensitizer. In conclusion, the NCI SBIR Development Center has funded the development of novel radiosensitizers leading to clinical trials of novel drugs in combination with radiation therapy. Continued follow-up is needed to determine if any of these novel radiosensitizers produce improved tumor control and/or overall survival.
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Affiliation(s)
- Kaveh Zakeri
- Radiation Research Program, Division of Cancer Treatment and Diagnosis, National Cancer Institute, Rockville, Maryland.,Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Deepa Narayanan
- Department of Small Business Innovation Research (SBIR) Development Center, National Cancer Institute, Bethesda, Maryland
| | - Pataje G S Prasanna
- Radiation Research Program, Division of Cancer Treatment and Diagnosis, National Cancer Institute, Rockville, Maryland
| | - Bhadrasain Vikram
- Radiation Research Program, Division of Cancer Treatment and Diagnosis, National Cancer Institute, Rockville, Maryland
| | - Jeffrey C Buchsbaum
- Radiation Research Program, Division of Cancer Treatment and Diagnosis, National Cancer Institute, Rockville, Maryland
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Sahu A, Kwon I, Tae G. Improving cancer therapy through the nanomaterials-assisted alleviation of hypoxia. Biomaterials 2019; 228:119578. [PMID: 31678843 DOI: 10.1016/j.biomaterials.2019.119578] [Citation(s) in RCA: 135] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 10/18/2019] [Accepted: 10/22/2019] [Indexed: 02/08/2023]
Abstract
Hypoxia, resulting from the imbalance between oxygen supply and consumption is a critical component of the tumor microenvironment. It has a paramount impact on cancer growth, metastasis and has long been known as a major obstacle for cancer therapy. However, none of the clinically approved anticancer therapeutics currently available for human use directly tackles this problem. Previous clinical trials of targeting tumor hypoxia with bioreductive prodrugs have failed to demonstrate satisfactory results. Therefore, new ideas are needed to overcome the hypoxia barrier. The method of modulating hypoxia to improve the therapeutic activity is of great interest but remains a considerable challenge. One of the emerging concepts is to supply or generate oxygen at the tumor site to increase the partial oxygen pressure and thereby reverse the hypoxia and its effects. In this review, we present an overview of the recent progress in the development of novel nanomaterials for the alleviation of hypoxic microenvironment. Two main strategies for hypoxia augmentation, i) direct delivery of O2 into the tumor, and ii) in situ O2 generations in the tumor microenvironment through different methods such as catalytic decomposition of endogenous hydrogen peroxide (H2O2) and light-triggered water splitting are discussed in detail. At present, these emerging nanomaterials are in their early phase and expected to grow rapidly in the coming years. Despite the promising start, there are several challenges needed to overcome for successful clinical translation.
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Affiliation(s)
- Abhishek Sahu
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju, 61005, Republic of Korea
| | - Inchan Kwon
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju, 61005, Republic of Korea
| | - Giyoong Tae
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju, 61005, Republic of Korea.
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Liu Z, Barber C, Gupta A, Wan L, Won YW, Furenlid LR, Chen Q, Desai AA, Zhao M, Bull DA, Unger EC, Martin DR. Imaging assessment of cardioprotection mediated by a dodecafluoropentane oxygen-carrier administered during myocardial infarction. Nucl Med Biol 2019; 70:67-77. [PMID: 30772168 DOI: 10.1016/j.nucmedbio.2019.01.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/18/2018] [Accepted: 01/14/2019] [Indexed: 01/25/2023]
Abstract
INTRODUCTION The objective of this study was to investigate the cardioprotective effects of a dodecafluoropentane (DDFP)-based perfluorocarbon emulsion (DDFPe) as an artificial carrier for oxygen delivery to ischemic myocardium, using 99mTc-duramycin SPECT imaging. METHODS Rat hearts with Ischemia-reperfusion (I/R) was prepared by coronary ligation for 45-min followed by reperfusion. The feasibility of 99mTc-duramycin in detecting myocardial I/R injury and its kinetic profile were first verified in the ischemic hearts with 2-h reperfusion (n = 6). DDFPe (0.6 mL/kg) was intravenously administered at 10 min after coronary ligation in fifteen rats and saline was given in thirteen rats as controls. 99mTc-duramycin SPECT images were acquired in the DDFPe-treated hearts and saline controls at 2-h (DDFPe-2 h, n = 7 and Saline-2 h, n = 6) or 24-h (DDFPe-24 h, n = 8 and Saline-24 h, n = 7) of reperfusion. RESULTS SPECT images, showing "hot-spot" 99mTc-duramycin uptake in the ischemic myocardium, exhibited significantly lower radioactive retention and smaller hot-spot size in the DDFPe-2 h and DDFPe-24 h hearts compared to controls. The infarcts in the Saline-24 h hearts extended significantly relative to measurements in the Saline-2 h. The extension of infarct size did not reach a statistical difference between the DDFPe-2 h and DDFPe-24 h hearts. Ex vivo measurement of 99mTc-duramycin activity (%ID/g) was lower in the ischemic area of DDFPe-2 h and DDFPe-24 h than that of the Saline-2 h and Saline-24 h hearts (P < 0.05). The area of injured myocardium, delineated by the uptake of 99mTc-duramycin, extended more substantially outside the infarct zone in the controls. CONCLUSIONS Significant reduction in myocardial I/R injury, as assessed by 99mTc-duramycin cell death imaging and histopathological analysis, was induced by DDFPe treatment after acute myocardial ischemia. 99mTc-duramycin imaging can reveal myocardial cell death in ischemic hearts and may provide a tool for the non-invasive assessment of cardioprotective interventions.
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Affiliation(s)
- Zhonglin Liu
- Department of Medical Imaging, University of Arizona, Tucson, AZ, United States of America.
| | - Christy Barber
- Department of Medical Imaging, University of Arizona, Tucson, AZ, United States of America
| | - Akash Gupta
- Division of Cardiology of Department of Medicine, University of Arizona, Tucson, AZ, United States of America
| | - Li Wan
- Department of Medical Imaging, University of Arizona, Tucson, AZ, United States of America
| | - Young-Wook Won
- Division of Cardiothoracic Surgery of Department of Surgery, University of Arizona, Tucson, AZ, United States of America
| | - Lars R Furenlid
- Department of Medical Imaging, University of Arizona, Tucson, AZ, United States of America
| | - Qin Chen
- Department of Pharmacology, University of Arizona, Tucson, AZ, United States of America
| | - Ankit A Desai
- Division of Cardiology of Department of Medicine, University of Arizona, Tucson, AZ, United States of America
| | - Ming Zhao
- Feinberg School of Medicine, Northwestern University, Chicago, IL, United States of America
| | - David A Bull
- Division of Cardiothoracic Surgery of Department of Surgery, University of Arizona, Tucson, AZ, United States of America
| | - Evan C Unger
- Department of Medical Imaging, University of Arizona, Tucson, AZ, United States of America; NuvOx Pharma, LLC., Tucson, AZ, United States of America
| | - Diego R Martin
- Department of Medical Imaging, University of Arizona, Tucson, AZ, United States of America.
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Graham K, Unger E. Overcoming tumor hypoxia as a barrier to radiotherapy, chemotherapy and immunotherapy in cancer treatment. Int J Nanomedicine 2018; 13:6049-6058. [PMID: 30323592 PMCID: PMC6177375 DOI: 10.2147/ijn.s140462] [Citation(s) in RCA: 364] [Impact Index Per Article: 60.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Hypoxia exists to some degree in most solid tumors due to inadequate oxygen delivery of the abnormal vasculature which cannot meet the demands of the rapidly proliferating cancer cells. The levels of oxygenation within the same tumor are highly variable from one area to another and can change over time. Tumor hypoxia is an important impediment to effective cancer therapy. In radiotherapy, the primary mechanism is the creation of reactive oxygen species; hypoxic tumors are therefore radiation resistant. A number of chemotherapeutic drugs have been shown to be less effective when exposed to a hypoxic environment which can lead to further disease progression. Hypoxia is also a potent barrier to effective immunotherapy in cancer treatment. Because of the recognition of hypoxia as an important barrier to cancer treatment, a variety of approaches have been undertaken to overcome or reverse tumor hypoxia. Such approaches have included breathing hyperbaric oxygen, artificial hemoglobins, allosteric hemoglobin modifiers, hypoxia activated prodrugs and fluorocarbons (FCs). These approaches have largely failed due to limited efficacy and/or adverse side effects. Oxygen therapeutics, based on liquid FCs, can potentially increase the oxygen-carrying capacity of the blood to reverse tumor hypoxia. Currently, at least two drugs are in clinical trials to reverse tumor hypoxia; one of these is designed to improve permeability of oxygen into the tumor tissue and the other is based upon a low boiling point FC that transports higher amounts of oxygen per gram than previously tested FCs.
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Kunz-Schughart LA, Dubrovska A, Peitzsch C, Ewe A, Aigner A, Schellenburg S, Muders MH, Hampel S, Cirillo G, Iemma F, Tietze R, Alexiou C, Stephan H, Zarschler K, Vittorio O, Kavallaris M, Parak WJ, Mädler L, Pokhrel S. Nanoparticles for radiooncology: Mission, vision, challenges. Biomaterials 2016; 120:155-184. [PMID: 28063356 DOI: 10.1016/j.biomaterials.2016.12.010] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 12/08/2016] [Accepted: 12/09/2016] [Indexed: 12/29/2022]
Abstract
Cancer is one of the leading non-communicable diseases with highest mortality rates worldwide. About half of all cancer patients receive radiation treatment in the course of their disease. However, treatment outcome and curative potential of radiotherapy is often impeded by genetically and/or environmentally driven mechanisms of tumor radioresistance and normal tissue radiotoxicity. While nanomedicine-based tools for imaging, dosimetry and treatment are potential keys to the improvement of therapeutic efficacy and reducing side effects, radiotherapy is an established technique to eradicate the tumor cells. In order to progress the introduction of nanoparticles in radiooncology, due to the highly interdisciplinary nature, expertise in chemistry, radiobiology and translational research is needed. In this report recent insights and promising policies to design nanotechnology-based therapeutics for tumor radiosensitization will be discussed. An attempt is made to cover the entire field from preclinical development to clinical studies. Hence, this report illustrates (1) the radio- and tumor-biological rationales for combining nanostructures with radiotherapy, (2) tumor-site targeting strategies and mechanisms of cellular uptake, (3) biological response hypotheses for new nanomaterials of interest, and (4) challenges to translate the research findings into clinical trials.
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Affiliation(s)
- Leoni A Kunz-Schughart
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden and Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Anna Dubrovska
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden and Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Claudia Peitzsch
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden and Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Alexander Ewe
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Clinical Pharmacology, University of Leipzig, Germany
| | - Achim Aigner
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Clinical Pharmacology, University of Leipzig, Germany
| | - Samuel Schellenburg
- Institute of Pathology, University Hospital, Carl Gustav Carus, TU Dresden, Germany
| | - Michael H Muders
- Institute of Pathology, University Hospital, Carl Gustav Carus, TU Dresden, Germany
| | - Silke Hampel
- Leibniz Institute of Solid State and Material Research Dresden, 01171 Dresden, Germany
| | - Giuseppe Cirillo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy
| | - Francesca Iemma
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, CS, Italy
| | - Rainer Tietze
- ENT-Department, Section for Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius Professorship, University Hospital Erlangen, Erlangen, Germany
| | - Christoph Alexiou
- ENT-Department, Section for Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius Professorship, University Hospital Erlangen, Erlangen, Germany
| | - Holger Stephan
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, 01314 Dresden, Germany
| | - Kristof Zarschler
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, 01314 Dresden, Germany
| | - Orazio Vittorio
- Children's Cancer Institute Australia, ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and Australian Centre for NanoMedicine, Sydney, UNSW, Australia
| | - Maria Kavallaris
- Children's Cancer Institute Australia, ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and Australian Centre for NanoMedicine, Sydney, UNSW, Australia
| | - Wolfgang J Parak
- Fachbereich Physik, Philipps Universität Marburg, 35037 Marburg, Germany; CIC Biomagune, 20009 San Sebastian, Spain
| | - Lutz Mädler
- Foundation Institute of Materials Science (IWT), Department of Production Engineering, University of Bremen, 28359 Bremen, Germany
| | - Suman Pokhrel
- Foundation Institute of Materials Science (IWT), Department of Production Engineering, University of Bremen, 28359 Bremen, Germany.
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Xu L, Qiu X, Zhang Y, Cao K, Zhao X, Wu J, Hu Y, Guo H. Liposome encapsulated perfluorohexane enhances radiotherapy in mice without additional oxygen supply. J Transl Med 2016; 14:268. [PMID: 27646172 PMCID: PMC5028944 DOI: 10.1186/s12967-016-1033-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Accepted: 09/08/2016] [Indexed: 11/20/2022] Open
Abstract
Background To investigate the effect of perfluorochemical preparations in enhancing radiotherapy, perfluocarbon nanoparticles were by encapsulating perfluorohexane into liposome [lip(PFH)]. Methods After intravenous injection, lip(PFH) could accumulate in the tumor site over time, with a prominent accumulation in tumor 24 h post injection. X-ray was delivered to the tumor site 24 h after the injection of lip(PFH) under room air. The experimental mice were randomized into four groups: control (saline), lip(PFH) (lip(PFH) only), X-ray (X-ray only), and lip(PFH) + X-ray (lip(PFH) with X-ray radiation). Tumor volume and histology were monitored to assess treatment efficacy. Results Tumor growth was significantly reduced in mice received lip(PFH) and X-ray compared with X-ray only. The histological data also revealed more destruction of tumor tissue in lip(PFH) + X-ray group compared with X-ray only. In addition, lip(PFH) did not show any significant tissue damage to major organs or induce significant liver/kidney dysfunction. Conclusions Lip(PFH) could accumulate in the tumor site and enhance radiotherapy without additional oxygen supply.
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Affiliation(s)
- Linfeng Xu
- Department of Uroloågy, Affiliated Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing, 210008, China.,State Key Laboratory of Pharmaceutical Biotechnology, School of Medicine, Nanjing University, Nanjing, 210093, China.,Institute of Urology, Nanjing University, Nanjing, 210008, China
| | - Xuefeng Qiu
- Department of Uroloågy, Affiliated Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing, 210008, China.,State Key Laboratory of Pharmaceutical Biotechnology, School of Medicine, Nanjing University, Nanjing, 210093, China.,Institute of Urology, Nanjing University, Nanjing, 210008, China
| | - Yanting Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Medicine, Nanjing University, Nanjing, 210093, China
| | - Kai Cao
- Department of Uroloågy, Affiliated Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing, 210008, China.,State Key Laboratory of Pharmaceutical Biotechnology, School of Medicine, Nanjing University, Nanjing, 210093, China.,Institute of Urology, Nanjing University, Nanjing, 210008, China
| | - Xiaozhi Zhao
- Department of Uroloågy, Affiliated Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing, 210008, China.,Institute of Urology, Nanjing University, Nanjing, 210008, China
| | - Jinhui Wu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Medicine, Nanjing University, Nanjing, 210093, China.
| | - Yiqiao Hu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Medicine, Nanjing University, Nanjing, 210093, China.
| | - Hongqian Guo
- Department of Uroloågy, Affiliated Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing, 210008, China. .,Institute of Urology, Nanjing University, Nanjing, 210008, China.
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18
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Nanoparticles in radiation oncology: From bench-side to bedside. Cancer Lett 2016; 375:256-262. [PMID: 26987625 DOI: 10.1016/j.canlet.2016.03.011] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 03/07/2016] [Accepted: 03/08/2016] [Indexed: 12/13/2022]
Abstract
Nanoparticles (NP) are "in vogue" in medical research. Pre-clinical studies accumulate evidence of NP enhancing radiation therapy. On one hand, NP, selected for their intrinsic physicochemical characteristics, are radio-sensitizers. Thus, when NP accumulate in cancer cells, they increase the radiation absorption coefficient specifically in tumour tissue, sparing healthy surrounding tissue from toxicity. On the other hand, NP, by being drug vectors, can carry radio-sensitizer therapeutics to cancer cells. Finally, NP present theranostic effects. Indeed they are used in imaging as contrast agents. NP therefore can be multi-tasking and have promising prospect in radiotherapy field. In spite of the numerous encouraging preclinical evidence, the very small number of clinical trials investigating NP possible involvement in the radiotherapy clinical practice suggests a physicians' unwillingness. Many prerequisites seem necessary including define biological mechanisms of NP radiosensitization pathways and of NP clearance. NP biocompatibility and toxicities should be better investigated to select, among the extensive range of possible systems, the harmless and most efficient one, and to finally come to a safe and successful clinical use. The present review focuses on the various interests of NP in the radiotherapy area and proposes a discussion about their role in the future clinical practice.
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Perfluorocarbon NVX-108 increased cerebral oxygen tension after traumatic brain injury in rats. Brain Res 2016; 1634:132-139. [PMID: 26794250 DOI: 10.1016/j.brainres.2016.01.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 12/23/2015] [Accepted: 01/08/2016] [Indexed: 11/23/2022]
Abstract
BACKGROUND Hypoxia is a critical secondary injury mechanism in traumatic brain injury (TBI), and early intervention to alleviate post-TBI hypoxia may be beneficial. NVX-108, a dodecafluoropentane perfluorocarbon, was screened for its ability to increase brain tissue oxygen tension (PbtO2) when administered soon after TBI. METHODS Ketamine-acepromazine anesthetized rats ventilated with 40% oxygen underwent moderate controlled cortical impact (CCI)-TBI at time 0 (T0). Rats received either no treatment (NON, n=8) or 0.5 ml/kg intravenous (IV) NVX-108 (NVX, n=9) at T15 (15 min after TBI) and T75. RESULTS Baseline cortical PbtO2 was 28±3 mm Hg and CCI-TBI resulted in a 46±6% reduction in PbtO2 at T15 (P<0.001). Significant differences in time-group interactions (P=0.013) were found when comparing either absolute or percentage change of PbtO2 to post-injury (mixed-model ANOVA) suggesting that administration of NVX-108 increased PbtO2 above injury levels while it remained depressed in the NON group. Specifically in the NVX group, PbtO2 increased to a peak 143% of T15 (P=0.02) 60 min after completion of NVX-108 injection (T135). Systemic blood pressure was not different between the groups. CONCLUSION NVX-108 caused an increase in PbtO2 following CCI-TBI in rats and should be evaluated further as a possible immediate treatment for TBI.
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Schafer R, Gmitro AF. Dynamic oxygenation measurements using a phosphorescent coating within a mammary window chamber mouse model. BIOMEDICAL OPTICS EXPRESS 2015; 6:639-50. [PMID: 25780753 PMCID: PMC4354589 DOI: 10.1364/boe.6.000639] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 01/14/2015] [Accepted: 01/26/2015] [Indexed: 05/14/2023]
Abstract
Phosphorescent lifetime imaging was employed to measure the spatial and temporal distribution of oxygen partial pressure in tissue under the coverslip of a mammary window chamber breast cancer mouse model. A thin platinum-porphyrin coating, whose phosphorescent lifetime varies monotonically with oxygen partial pressure, was applied to the coverslip surface. Dynamic temporal responses to induced modulations in oxygenation levels were measured using this approach.
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Affiliation(s)
- Rachel Schafer
- Department of Biomedical Engineering, University of Arizona, 1657 E. Helen St., Tucson, AZ 85721,
USA
- Department of Medical Imaging, University of Arizona, 1609 N Warren Ave, Tucson, AZ 85724,
USA
| | - Arthur F. Gmitro
- Department of Biomedical Engineering, University of Arizona, 1657 E. Helen St., Tucson, AZ 85721,
USA
- College of Optical Sciences, University of Arizona, 1630 E. University Blvd, Tucson, AZ 85721,
USA
- Department of Medical Imaging, University of Arizona, 1609 N Warren Ave, Tucson, AZ 85724,
USA
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