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Brown GC. Bioenergetic myths of energy transduction in eukaryotic cells. Front Mol Biosci 2024; 11:1402910. [PMID: 38952719 PMCID: PMC11215017 DOI: 10.3389/fmolb.2024.1402910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Accepted: 04/15/2024] [Indexed: 07/03/2024] Open
Abstract
The study of energy transduction in eukaryotic cells has been divided between Bioenergetics and Physiology, reflecting and contributing to a variety of Bioenergetic myths considered here: 1) ATP production = energy production, 2) energy transduction is confined to mitochondria (plus glycolysis and chloroplasts), 3) mitochondria only produce heat when required, 4) glycolysis is inefficient compared to mitochondria, and 5) mitochondria are the main source of reactive oxygen species (ROS) in cells. These myths constitute a 'mitocentric' view of the cell that is wrong or unbalanced. In reality, mitochondria are the main site of energy dissipation and heat production in cells, and this is an essential function of mitochondria in mammals. Energy transduction and ROS production occur throughout the cell, particularly the cytosol and plasma membrane, and all cell membranes act as two-dimensional energy conduits. Glycolysis is efficient, and produces less heat per ATP than mitochondria, which might explain its increased use in muscle and cancer cells.
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Affiliation(s)
- Guy C. Brown
- Department of Biochemistry, University of Cambridge, Cambridge, United Kingdom
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2
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Zhou S, Tsutsumiuchi K, Imai R, Miki Y, Kondo A, Nakagawa H, Watanabe K, Ohtsuki T. In Vitro Study of Tumor-Homing Peptide-Modified Magnetic Nanoparticles for Magnetic Hyperthermia. Molecules 2024; 29:2632. [PMID: 38893510 PMCID: PMC11174109 DOI: 10.3390/molecules29112632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 05/22/2024] [Accepted: 05/31/2024] [Indexed: 06/21/2024] Open
Abstract
Cancer cells have higher heat sensitivity compared to normal cells; therefore, hyperthermia is a promising approach for cancer therapy because of its ability to selectively kill cancer cells by heating them. However, the specific and rapid heating of tumor tissues remains challenging. This study investigated the potential of magnetic nanoparticles (MNPs) modified with tumor-homing peptides (THPs), specifically PL1 and PL3, for tumor-specific magnetic hyperthermia therapy. The synthesis of THP-modified MNPs involved the attachment of PL1 and PL3 peptides to the surface of the MNPs, which facilitated enhanced tumor cell binding and internalization. Cell specificity studies revealed an increased uptake of PL1- and PL3-MNPs by tumor cells compared to unmodified MNPs, indicating their potential for targeted delivery. In vitro hyperthermia experiments demonstrated the efficacy of PL3-MNPs in inducing tumor cell death when exposed to an alternating magnetic field (AMF). Even without exposure to an AMF, an additional ferroptotic pathway was suggested to be mediated by the nanoparticles. Thus, this study suggests that THP-modified MNPs, particularly PL3-MNPs, hold promise as a targeted approach for tumor-specific magnetic hyperthermia therapy.
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Affiliation(s)
- Shengli Zhou
- Department of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan; (S.Z.); (K.W.)
| | - Kaname Tsutsumiuchi
- College of Bioscience and Biotechnology, Chubu University, Aichi 487-8501, Japan; (K.T.); (R.I.); (Y.M.); (A.K.); (H.N.)
| | - Ritsuko Imai
- College of Bioscience and Biotechnology, Chubu University, Aichi 487-8501, Japan; (K.T.); (R.I.); (Y.M.); (A.K.); (H.N.)
| | - Yukiko Miki
- College of Bioscience and Biotechnology, Chubu University, Aichi 487-8501, Japan; (K.T.); (R.I.); (Y.M.); (A.K.); (H.N.)
| | - Anna Kondo
- College of Bioscience and Biotechnology, Chubu University, Aichi 487-8501, Japan; (K.T.); (R.I.); (Y.M.); (A.K.); (H.N.)
| | - Hiroshi Nakagawa
- College of Bioscience and Biotechnology, Chubu University, Aichi 487-8501, Japan; (K.T.); (R.I.); (Y.M.); (A.K.); (H.N.)
| | - Kazunori Watanabe
- Department of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan; (S.Z.); (K.W.)
| | - Takashi Ohtsuki
- Department of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan; (S.Z.); (K.W.)
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Overchuk M, Weersink RA, Wilson BC, Zheng G. Photodynamic and Photothermal Therapies: Synergy Opportunities for Nanomedicine. ACS NANO 2023; 17:7979-8003. [PMID: 37129253 PMCID: PMC10173698 DOI: 10.1021/acsnano.3c00891] [Citation(s) in RCA: 133] [Impact Index Per Article: 133.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Tumoricidal photodynamic (PDT) and photothermal (PTT) therapies harness light to eliminate cancer cells with spatiotemporal precision by either generating reactive oxygen species or increasing temperature. Great strides have been made in understanding biological effects of PDT and PTT at the cellular, vascular and tumor microenvironmental levels, as well as translating both modalities in the clinic. Emerging evidence suggests that PDT and PTT may synergize due to their different mechanisms of action, and their nonoverlapping toxicity profiles make such combination potentially efficacious. Moreover, PDT/PTT combinations have gained momentum in recent years due to the development of multimodal nanoplatforms that simultaneously incorporate photodynamically- and photothermally active agents. In this review, we discuss how combining PDT and PTT can address the limitations of each modality alone and enhance treatment safety and efficacy. We provide an overview of recent literature featuring dual PDT/PTT nanoparticles and analyze the strengths and limitations of various nanoparticle design strategies. We also detail how treatment sequence and dose may affect cellular states, tumor pathophysiology and drug delivery, ultimately shaping the treatment response. Lastly, we analyze common experimental design pitfalls that complicate preclinical assessment of PDT/PTT combinations and propose rational guidelines to elucidate the mechanisms underlying PDT/PTT interactions.
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Affiliation(s)
- Marta Overchuk
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario M5G 1L7, Canada
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, North Carolina 27599, United States
| | - Robert A Weersink
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario M5G 1L7, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5G 1L7, Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5G 1L7, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario M5G 1L7, Canada
| | - Brian C Wilson
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario M5G 1L7, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5G 1L7, Canada
| | - Gang Zheng
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario M5G 1L7, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5G 1L7, Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5G 1L7, Canada
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Al Sariri T, Simitev RD, Penta R. Optimal heat transport induced by magnetic nanoparticle delivery in vascularised tumours. J Theor Biol 2023; 561:111372. [PMID: 36496186 DOI: 10.1016/j.jtbi.2022.111372] [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: 06/30/2022] [Revised: 10/27/2022] [Accepted: 11/23/2022] [Indexed: 12/12/2022]
Abstract
We describe a novel mathematical model for blood flow, delivery of nanoparticles, and heat transport in vascularised tumour tissue. The model, which is derived via the asymptotic homogenisation technique, provides a link between the macroscale behaviour of the system and its underlying, tortuous micro-structure, as parametrised in Penta and Ambrosi (2015). It consists of a double Darcy's law, coupled with a double advection-diffusion-reaction system describing heat transport, and an advection-diffusion-reaction equation for transport and adhesion of particles. Particles are assumed sufficiently large and do not extravasate to the tumour interstitial space but blood and heat can be exchanged between the two compartments. Numerical simulations of the model are performed using a finite element method to investigate cancer hyperthermia induced by the application of magnetic field applied to injected iron oxide nanoparticles. Since tumour microvasculature is more tortuous than that of healthy tissue and thus suboptimal in terms of fluid and drug transport, we study the influence of the vessels' geometry on tumour temperature. Effective and safe hyperthermia treatment requires tumour temperature within certain target range, generally estimated between 42 °C and 46 °C, for a certain target duration, typically 0.5h to 2h. As temperature is difficult to measure in situ, we use our model to determine the ranges of tortuosity of the microvessels, magnetic intensity, injection time, wall shear stress rate, and concentration of nanoparticles required to achieve given target conditions.
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Affiliation(s)
- Tahani Al Sariri
- School of Mathematics and Statistics, University of Glasgow, University Place, Glasgow, G12 8QQ, UK; Department of Mathematics, College of Science, Sultan Qaboos University, Al-Khoudh 123, Oman
| | - Radostin D Simitev
- School of Mathematics and Statistics, University of Glasgow, University Place, Glasgow, G12 8QQ, UK
| | - Raimondo Penta
- School of Mathematics and Statistics, University of Glasgow, University Place, Glasgow, G12 8QQ, UK.
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From Localized Mild Hyperthermia to Improved Tumor Oxygenation: Physiological Mechanisms Critically Involved in Oncologic Thermo-Radio-Immunotherapy. Cancers (Basel) 2023; 15:cancers15051394. [PMID: 36900190 PMCID: PMC10000497 DOI: 10.3390/cancers15051394] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/14/2023] [Accepted: 02/16/2023] [Indexed: 02/25/2023] Open
Abstract
(1) Background: Mild hyperthermia (mHT, 39-42 °C) is a potent cancer treatment modality when delivered in conjunction with radiotherapy. mHT triggers a series of therapeutically relevant biological mechanisms, e.g., it can act as a radiosensitizer by improving tumor oxygenation, the latter generally believed to be the commensurate result of increased blood flow, and it can positively modulate protective anticancer immune responses. However, the extent and kinetics of tumor blood flow (TBF) changes and tumor oxygenation are variable during and after the application of mHT. The interpretation of these spatiotemporal heterogeneities is currently not yet fully clarified. (2) Aim and methods: We have undertaken a systematic literature review and herein provide a comprehensive insight into the potential impact of mHT on the clinical benefits of therapeutic modalities such as radio- and immuno-therapy. (3) Results: mHT-induced increases in TBF are multifactorial and differ both spatially and with time. In the short term, changes are preferentially caused by vasodilation of co-opted vessels and of upstream normal tissue vessels as well as by improved hemorheology. Sustained TBF increases are thought to result from a drastic reduction of interstitial pressure, thus restoring adequate perfusion pressures and/or HIF-1α- and VEGF-mediated activation of angiogenesis. The enhanced oxygenation is not only the result of mHT-increased TBF and, thus, oxygen availability but also of heat-induced higher O2 diffusivities, acidosis- and heat-related enhanced O2 unloading from red blood cells. (4) Conclusions: Enhancement of tumor oxygenation achieved by mHT cannot be fully explained by TBF changes alone. Instead, a series of additional, complexly linked physiological mechanisms are crucial for enhancing tumor oxygenation, almost doubling the initial O2 tensions in tumors.
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Swetha KL, Maravajjala KS, Li SD, Singh MS, Roy A. Breaking the niche: multidimensional nanotherapeutics for tumor microenvironment modulation. Drug Deliv Transl Res 2023; 13:105-134. [PMID: 35697894 DOI: 10.1007/s13346-022-01194-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/01/2022] [Indexed: 12/13/2022]
Abstract
Most of the current antitumor therapeutics were developed targeting the cancer cells only. Unfortunately, in the majority of tumors, this single-dimensional therapy is found to be ineffective. Advanced research has shown that cancer is a multicellular disorder. The tumor microenvironment (TME), which is made by a complex network of the bulk tumor cells and other supporting cells, plays a crucial role in tumor progression. Understanding the importance of the TME in tumor growth, different treatment modalities have been developed targeting these supporting cells. Recent clinical results suggest that simultaneously targeting multiple components of the tumor ecosystem with drug combinations can be highly effective. This type of "multidimensional" therapy has a high potential for cancer treatment. However, tumor-specific delivery of such multi-drug combinations remains a challenge. Nanomedicine could be utilized for the tumor-targeted delivery of such multidimensional therapeutics. In this review, we first give a brief overview of the major components of TME. We then highlight the latest developments in nanoparticle-based combination therapies, where one drug targets cancer cells and other drug targets tumor-supporting components in the TME for a synergistic effect. We include the latest preclinical and clinical studies and discuss innovative nanoparticle-mediated targeting strategies.
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Affiliation(s)
- K Laxmi Swetha
- Department of Pharmacy, Birla Institute of Technology & Science, Vidya Vihar, Pilani, Rajasthan, 333031, India
| | - Kavya Sree Maravajjala
- Department of Pharmacy, Birla Institute of Technology & Science, Vidya Vihar, Pilani, Rajasthan, 333031, India
| | - Shyh-Dar Li
- Faculty of Pharmaceutical Sciences, The University of British Columbia, 2405 Westbrook Mall, Vancouver, BC, Canada
| | - Manu Smriti Singh
- Department of Biotechnology, Bennett University, Greater Noida, Uttar Pradesh, 201310, India. .,Center of Excellence for Nanosensors and Nanomedicine, Bennett University, Greater Noida, Uttar Pradesh, 201310, India.
| | - Aniruddha Roy
- Department of Pharmacy, Birla Institute of Technology & Science, Vidya Vihar, Pilani, Rajasthan, 333031, India.
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Gao M, Huang X, Wu Z, Wang L, Yuan S, Du Z, Luo S, Li R, Wang W. Synthesis of a versatile mitochondria-targeting small molecule for cancer near-infrared fluorescent imaging and radio/photodynamic/photothermal synergistic therapies. Mater Today Bio 2022; 15:100316. [PMID: 35721281 PMCID: PMC9198388 DOI: 10.1016/j.mtbio.2022.100316] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 06/01/2022] [Accepted: 06/03/2022] [Indexed: 12/17/2022]
Abstract
Although as a mainstay modal for cancer treatment, the clinical effect of radiotherapy (RT) does not yet meet the need of cancer patients. Developing tumour-preferential radiosensitizers or combining RT with other treatments has been acknowledged highly necessary to enhance the efficacy of RT. The present study reported a multifunctional bioactive small-molecule (designated as IR-83) simultaneously exhibiting tumour-preferential accumulation, near-infrared imaging and radio/photodynamic/photothermal therapeutic effects. IR-83 was designed and synthesized by introducing 2-nitroimidazole as a radiosensitizer into the framework of heptamethine cyanine dyes inherently with tumour-targeting and photosensitizing effects. As results, IR-83 preferentially accumulated in tumours, suppressed tumour growth and metastasis by integrating radio/photodynamic/photothermal multimodal therapies. Mechanism studies showed that IR-83 accumulated in cancer cell mitochondria, induced excessive reactive oxygen species (ROS), and generated high heat after laser irradiation. On one hand, these phenomena led to mitochondrial dysfunction and a sharp decline in oxidative phosphorylation to lessen tissue oxygen consumption. On the other hand, excessive ROS in mitochondria destroyed the balance of antioxidants and oxidative stress balance by down-regulating the intracellular antioxidant system, and subsequently sensitized ionizing radiation-generated irreversible DNA double-strand breaks. Therefore, this study presented a promising radiosensitizer and a new alternative strategy to enhance RT efficacy via mitochondria-targeting multimodal synergistic treatment. IR-83 is chemically synthesized via introduction of a radiosensitizing moiety into a cancer-targeting heptamethine cyanine framework.. IR-83 exhibits multifunctional bioactivities of cancer-preferential accumulation, near infrared imaging-guided multimodal treatment. IR-83 exerts a synergistic therapeutic effect of RT/PDT/PTT by targeting cancer cell mitochondria. Cancer radiotherapy is significantly sensitized by mitochondria-targeting delivery of a radiosensitizing moiety, PTT-triggered increase of O2 level and PDT-induced irreversible DNA double-strand breaks.
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Affiliation(s)
- Mingquan Gao
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, China
- Department of Radiation Oncology, Sichuan Cancer Hospital, Sichuan Key Laboratory of Radiation Oncology, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610041, China
| | - Xie Huang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Zifei Wu
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, China
- Department of Radiation Oncology, Sichuan Cancer Hospital, Sichuan Key Laboratory of Radiation Oncology, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610041, China
| | - Liting Wang
- Biomedical Analysis Center, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Shaolong Yuan
- Biomedical Analysis Center, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Zaizhi Du
- Biomedical Analysis Center, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Shenglin Luo
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Rong Li
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China
- Corresponding author. No. 30, Gaotanyan Zheng Street, Shapingba District, Chongqing, China.
| | - Weidong Wang
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, China
- Department of Radiation Oncology, Sichuan Cancer Hospital, Sichuan Key Laboratory of Radiation Oncology, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610041, China
- Corresponding author. No. 55, section 4, Renmin South Road, Chengdu, Sichuan Province, China.
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Bucharskaya AB, Khlebtsov NG, Khlebtsov BN, Maslyakova GN, Navolokin NA, Genin VD, Genina EA, Tuchin VV. Photothermal and Photodynamic Therapy of Tumors with Plasmonic Nanoparticles: Challenges and Prospects. MATERIALS (BASEL, SWITZERLAND) 2022; 15:1606. [PMID: 35208145 PMCID: PMC8878601 DOI: 10.3390/ma15041606] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/16/2022] [Accepted: 02/16/2022] [Indexed: 01/27/2023]
Abstract
Cancer remains one of the leading causes of death in the world. For a number of neoplasms, the efficiency of conventional chemo- and radiation therapies is insufficient because of drug resistance and marked toxicity. Plasmonic photothermal therapy (PPT) using local hyperthermia induced by gold nanoparticles (AuNPs) has recently been extensively explored in tumor treatment. However, despite attractive promises, the current PPT status is limited by laboratory experiments, academic papers, and only a few preclinical studies. Unfortunately, most nanoformulations still share a similar fate: great laboratory promises and fair preclinical trials. This review discusses the current challenges and prospects of plasmonic nanomedicine based on PPT and photodynamic therapy (PDT). We start with consideration of the fundamental principles underlying plasmonic properties of AuNPs to tune their plasmon resonance for the desired NIR-I, NIR-2, and SWIR optical windows. The basic principles for simulation of optical cross-sections and plasmonic heating under CW and pulsed irradiation are discussed. Then, we consider the state-of-the-art methods for wet chemical synthesis of the most popular PPPT AuNPs such as silica/gold nanoshells, Au nanostars, nanorods, and nanocages. The photothermal efficiencies of these nanoparticles are compared, and their applications to current nanomedicine are shortly discussed. In a separate section, we discuss the fabrication of gold and other nanoparticles by the pulsed laser ablation in liquid method. The second part of the review is devoted to our recent experimental results on laser-activated interaction of AuNPs with tumor and healthy tissues and current achievements of other research groups in this application area. The unresolved issues of PPT are the significant accumulation of AuNPs in the organs of the mononuclear phagocyte system, causing potential toxic effects of nanoparticles, and the possibility of tumor recurrence due to the presence of survived tumor cells. The prospective ways of solving these problems are discussed, including developing combined antitumor therapy based on combined PPT and PDT. In the conclusion section, we summarize the most urgent needs of current PPT-based nanomedicine.
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Affiliation(s)
- Alla B. Bucharskaya
- Core Facility Center, Saratov State Medical University, 112 Bol′shaya Kazachya Str., 410012 Saratov, Russia; (G.N.M.); (N.A.N.)
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (V.D.G.); (E.A.G.); (V.V.T.)
- Laser Molecular Imaging and Machine Learning Laboratory, Tomsk State University, 36 Lenin′s Av., 634050 Tomsk, Russia
| | - Nikolai G. Khlebtsov
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (V.D.G.); (E.A.G.); (V.V.T.)
- Nanobiotechnology Laboratory, Institute of Biochemistry and Physiology of Plants and Microorganisms RAS, FRC “Saratov Scientific Centre of the Russian Academy of Sciences”, 13 Prospekt Entuziastov, 410049 Saratov, Russia;
| | - Boris N. Khlebtsov
- Nanobiotechnology Laboratory, Institute of Biochemistry and Physiology of Plants and Microorganisms RAS, FRC “Saratov Scientific Centre of the Russian Academy of Sciences”, 13 Prospekt Entuziastov, 410049 Saratov, Russia;
| | - Galina N. Maslyakova
- Core Facility Center, Saratov State Medical University, 112 Bol′shaya Kazachya Str., 410012 Saratov, Russia; (G.N.M.); (N.A.N.)
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (V.D.G.); (E.A.G.); (V.V.T.)
| | - Nikita A. Navolokin
- Core Facility Center, Saratov State Medical University, 112 Bol′shaya Kazachya Str., 410012 Saratov, Russia; (G.N.M.); (N.A.N.)
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (V.D.G.); (E.A.G.); (V.V.T.)
| | - Vadim D. Genin
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (V.D.G.); (E.A.G.); (V.V.T.)
- Laser Molecular Imaging and Machine Learning Laboratory, Tomsk State University, 36 Lenin′s Av., 634050 Tomsk, Russia
| | - Elina A. Genina
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (V.D.G.); (E.A.G.); (V.V.T.)
- Laser Molecular Imaging and Machine Learning Laboratory, Tomsk State University, 36 Lenin′s Av., 634050 Tomsk, Russia
| | - Valery V. Tuchin
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (V.D.G.); (E.A.G.); (V.V.T.)
- Laser Molecular Imaging and Machine Learning Laboratory, Tomsk State University, 36 Lenin′s Av., 634050 Tomsk, Russia
- Institute of Precision Mechanics and Control, FRC “Saratov Scientific Centre of the Russian Academy of Sciences”, 24 Rabochaya Str., 410028 Saratov, Russia
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Photo-induced processes of iron oxide nanoparticles to enhance laser therapy. BIOMEDICAL PHOTONICS 2022. [DOI: 10.24931/2413-9432-2021-10-4-44-58] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Nanoparticles are used as drug carriers to increase the selectivity and effectiveness of therapy, as well as for combined therapy that utilizes different effects. Iron oxide nanoparticles are promising in this aspect. Due to magnetic properties, they can be used as a contrast agent for magnetic resonance imaging. Also, iron oxide nanoparticles could be coated with a photosensitizer for photodynamic therapy and their laser or magnetic heating can be used for phototherapy. Local enhancement of the electromagnetic field near iron oxide nanoparticles can increase the fluorescence intensity of photosensitizers and the efficiency of singlet oxygen generation. This paper presents the results of a study of iron oxide nanoparticles focused on the photophysical aspects of the formation of “hot spots” under laser irradiation. The photoinduced effects of iron oxide nanoparticles observed in in vitro experiments lead to the rupture of lysosomes. Theoretical modeling showed that the heating of iron oxide nanoparticles with a radius of 35 nm under the action of laser radiation is about 89°C and 19°C for wavelengths of 458 and 561 nm, respectively. Local field enhancement occurs in pairs of nanoparticles of various sizes and strongly depends on the distance between them. The maximum gain is achieved at small distances between nanoparticles. For a dimer of nanoparticles with radii of 10 and 35 nm at a distance of 1 nm, an enhancement factor of two orders of magnitude was obtained. The investigated phenomenon of «hot spots» is in demand for precision therapy, because the photo-induced processes occur at small distances between nanoparticles, in areas of their high accumulation.
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10
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Therapeutic Modification of Hypoxia. Clin Oncol (R Coll Radiol) 2021; 33:e492-e509. [PMID: 34535359 DOI: 10.1016/j.clon.2021.08.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 08/04/2021] [Accepted: 08/27/2021] [Indexed: 12/30/2022]
Abstract
Regions of reduced oxygenation (hypoxia) are a characteristic feature of virtually all animal and human solid tumours. Numerous preclinical studies, both in vitro and in vivo, have shown that decreasing oxygen concentration induces resistance to radiation. Importantly, hypoxia in human tumours is a negative indicator of radiotherapy outcome. Hypoxia also contributes to resistance to other cancer therapeutics, including immunotherapy, and increases malignant progression as well as cancer cell dissemination. Consequently, substantial effort has been made to detect hypoxia in human tumours and identify realistic approaches to overcome hypoxia and improve cancer therapy outcomes. Hypoxia-targeting strategies include improving oxygen availability, sensitising hypoxic cells to radiation, preferentially killing these cells, locating the hypoxic regions in tumours and increasing the radiation dose to those areas, or applying high energy transfer radiation, which is less affected by hypoxia. Despite numerous clinical studies with each of these hypoxia-modifying approaches, many of which improved both local tumour control and overall survival, hypoxic modification has not been established in routine clinical practice. Here we review the background and significance of hypoxia, how it can be imaged clinically and focus on the various hypoxia-modifying techniques that have undergone, or are currently in, clinical evaluation.
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Ximendes E, Marin R, Shen Y, Ruiz D, Gómez-Cerezo D, Rodríguez-Sevilla P, Lifante J, Viveros-Méndez PX, Gámez F, García-Soriano D, Salas G, Zalbidea C, Espinosa A, Benayas A, García-Carrillo N, Cussó L, Desco M, Teran FJ, Juárez BH, Jaque D. Infrared-Emitting Multimodal Nanostructures for Controlled In Vivo Magnetic Hyperthermia. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100077. [PMID: 34117667 DOI: 10.1002/adma.202100077] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 04/10/2021] [Indexed: 05/05/2023]
Abstract
Deliberate and local increase of the temperature within solid tumors represents an effective therapeutic approach. Thermal therapies embrace this concept leveraging the capability of some species to convert the absorbed energy into heat. To that end, magnetic hyperthermia (MHT) uses magnetic nanoparticles (MNPs) that can effectively dissipate the energy absorbed under alternating magnetic fields. However, MNPs fail to provide real-time thermal feedback with the risk of unwanted overheating and impeding on-the-fly adjustment of the therapeutic parameters. Localization of MNPs within a tissue in an accurate, rapid, and cost-effective way represents another challenge for increasing the efficacy of MHT. In this work, MNPs are combined with state-of-the-art infrared luminescent nanothermometers (LNTh; Ag2 S nanoparticles) in a nanocapsule that simultaneously overcomes these limitations. The novel optomagnetic nanocapsule acts as multimodal contrast agents for different imaging techniques (magnetic resonance, photoacoustic and near-infrared fluorescence imaging, optical and X-ray computed tomography). Most crucially, these nanocapsules provide accurate (0.2 °C resolution) and real-time subcutaneous thermal feedback during in vivo MHT, also enabling the attainment of thermal maps of the area of interest. These findings are a milestone on the road toward controlled magnetothermal therapies with minimal side effects.
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Affiliation(s)
- Erving Ximendes
- Nanomaterials for Bioimaging Group (nanoBIG), Universidad Autónoma de Madrid, Madrid, 28049, Spain
- IRYCIS, Ctra. Colmenar km. 9.100, Madrid, 28034, Spain
| | - Riccardo Marin
- Nanomaterials for Bioimaging Group (nanoBIG), Universidad Autónoma de Madrid, Madrid, 28049, Spain
| | - Yingli Shen
- Nanomaterials for Bioimaging Group (nanoBIG), Universidad Autónoma de Madrid, Madrid, 28049, Spain
| | - Diego Ruiz
- IMDEA Nanociencia, Faraday 9, Cantoblanco, Madrid, 28049, Spain
| | | | - Paloma Rodríguez-Sevilla
- Nanomaterials for Bioimaging Group (nanoBIG), Universidad Autónoma de Madrid, Madrid, 28049, Spain
| | - Jose Lifante
- Nanomaterials for Bioimaging Group (nanoBIG), Universidad Autónoma de Madrid, Madrid, 28049, Spain
| | - Perla X Viveros-Méndez
- Universidad Autónoma de Zacatecas, Unidad Académica de Ciencia y Tecnología de la Luz y la Materia, Carretera Zacatecas-Guadalajara km. 6, Ejido la escondida, Zacatecas, Zacatecas, 98160, México
| | - Francisco Gámez
- Department of Applied Physical Chemistry, Universidad Autónoma de Madrid, Francisco Tomás y Valiente, 7, Cantoblanco, Madrid, 28049, Spain
| | | | - Gorka Salas
- IMDEA Nanociencia, Faraday 9, Cantoblanco, Madrid, 28049, Spain
- Nanobiotecnología (IMDEA-Nanociencia), Unidad Asociada al Centro Nacional de Biotecnología (CSIC), Madrid, 28049, Spain
| | - Carmen Zalbidea
- IMDEA Nanociencia, Faraday 9, Cantoblanco, Madrid, 28049, Spain
- Department of Applied Physical Chemistry, Universidad Autónoma de Madrid, Francisco Tomás y Valiente, 7, Cantoblanco, Madrid, 28049, Spain
| | - Ana Espinosa
- IMDEA Nanociencia, Faraday 9, Cantoblanco, Madrid, 28049, Spain
- Nanobiotecnología (IMDEA-Nanociencia), Unidad Asociada al Centro Nacional de Biotecnología (CSIC), Madrid, 28049, Spain
| | - Antonio Benayas
- Nanomaterials for Bioimaging Group (nanoBIG), Universidad Autónoma de Madrid, Madrid, 28049, Spain
- IRYCIS, Ctra. Colmenar km. 9.100, Madrid, 28034, Spain
| | | | - Lorena Cussó
- Departamento de Bioingeniería e Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Madrid, 28911, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, 28007, Spain
- Unidad de Imagen Avanzada, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, 28029, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, 28029, Spain
| | - Manuel Desco
- Departamento de Bioingeniería e Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Madrid, 28911, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, 28007, Spain
- Unidad de Imagen Avanzada, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, 28029, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, 28029, Spain
| | - Francisco J Teran
- IMDEA Nanociencia, Faraday 9, Cantoblanco, Madrid, 28049, Spain
- Nanobiotecnología (IMDEA-Nanociencia), Unidad Asociada al Centro Nacional de Biotecnología (CSIC), Madrid, 28049, Spain
| | - Beatriz H Juárez
- IMDEA Nanociencia, Faraday 9, Cantoblanco, Madrid, 28049, Spain
- Department of Applied Physical Chemistry, Universidad Autónoma de Madrid, Francisco Tomás y Valiente, 7, Cantoblanco, Madrid, 28049, Spain
| | - Daniel Jaque
- Nanomaterials for Bioimaging Group (nanoBIG), Universidad Autónoma de Madrid, Madrid, 28049, Spain
- IRYCIS, Ctra. Colmenar km. 9.100, Madrid, 28034, Spain
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12
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Hannon G, Tansi FL, Hilger I, Prina‐Mello A. The Effects of Localized Heat on the Hallmarks of Cancer. ADVANCED THERAPEUTICS 2021. [DOI: 10.1002/adtp.202000267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Gary Hannon
- Nanomedicine and Molecular Imaging Group Trinity Translational Medicine Institute Dublin 8 Ireland
- Laboratory of Biological Characterization of Advanced Materials (LBCAM), Trinity Translational Medicine Institute Trinity College Dublin Dublin 8 Ireland
| | - Felista L. Tansi
- Department of Experimental Radiology, Institute of Diagnostic and Interventional Radiology Jena University Hospital—Friedrich Schiller University Jena Am Klinikum 1 07740 Jena Germany
| | - Ingrid Hilger
- Department of Experimental Radiology, Institute of Diagnostic and Interventional Radiology Jena University Hospital—Friedrich Schiller University Jena Am Klinikum 1 07740 Jena Germany
| | - Adriele Prina‐Mello
- Nanomedicine and Molecular Imaging Group Trinity Translational Medicine Institute Dublin 8 Ireland
- Laboratory of Biological Characterization of Advanced Materials (LBCAM), Trinity Translational Medicine Institute Trinity College Dublin Dublin 8 Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre, CRANN Institute Trinity College Dublin Dublin 2 Ireland
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13
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Carneiro MW, Brancato L, Wylleman B, van Zwol E, Conings L, Vueghs P, Gorbaslieva I, Van den Bossche J, Rudenko O, Janicot M, Bogers JP. Safety evaluation of long-term temperature controlled whole-body thermal treatment in female Aachen minipig. Int J Hyperthermia 2021; 38:165-175. [PMID: 33576280 DOI: 10.1080/02656736.2021.1876256] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Objective: Thermal treatment (TT), defined as treatment using supra-physiological body temperatures (39-45 C), somewhat resembles fever in terms of temperature range, one of the first natural barriers for the body to fight exposure to external pathogens. Methods: Whole-body thermal treatment (WBTT) consists of heating up the complete body to a temperature range of 39 to 45 C. Despite the recognized therapeutic potential of hyperthermia, the broad clinical use of WBTT has been limited by safety issues related to medical devices and procedures used to achieve WBTT, in particular adequate control of the body temperature. To circumvent this, a sophisticated medical device was developed, allowing long-term temperature controlled WBTT (41.5 C for up to 8 h). Technical feasibility and tolerability of the WBTT procedure (including complete anesthesia) were tested using female Aachen minipig. Optical fiber temperature sensors inserted in multiple organs were used and demonstrated consistent monitoring and control of different organs temperature over an extended period of time. Results: Clinical evaluation of the animals before, during and after treatment revealed minor clinical parameter changes, but all of them were clinically acceptable. These changes were limited and reversible, and the animals remained healthy throughout the whole procedure and follow-up. In addition, histopathological analysis of selected key organs showed no thermal treatment-related changes. Conclusion: It was concluded that WBTT (41.5 C for up to 8 h) was well tolerated and safe in female Aachen minipigs. Altogether, data supports the safe clinical use of the WBTT medical device and protocol, enabling its implementation into human patients suffering from life-threatening diseases.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - John-Paul Bogers
- ElmediX NV, Mechelen, Belgium.,Laboratory for Cell Biology and Histology, University of Antwerp, Antwerp, Belgium
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Agnass P, Rodermond HM, Zweije R, Sijbrands J, Vogel JA, van Lienden KP, van Gulik TM, van Veldhuisen E, Franken NAP, Oei AL, Kok HP, Besselink MG, Crezee J. HyCHEED System for Maintaining Stable Temperature Control during Preclinical Irreversible Electroporation Experiments at Clinically Relevant Temperature and Pulse Settings. SENSORS 2020; 20:s20216227. [PMID: 33142821 PMCID: PMC7662544 DOI: 10.3390/s20216227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/21/2020] [Accepted: 10/28/2020] [Indexed: 12/11/2022]
Abstract
Electric permeabilization of cell membranes is the main mechanism of irreversible electroporation (IRE), an ablation technique for treatment of unresectable cancers, but the pulses also induce a significant temperature increase in the treated volume. To investigate the therapeutically thermal contribution, a preclinical setup is required to apply IRE at desired temperatures while maintaining stable temperatures. This study’s aim was to develop and test an electroporation device capable of maintaining a pre-specified stable and spatially homogeneous temperatures and electric field in a tumor cell suspension for several clinical-IRE-settings. A hydraulically controllable heat exchange electroporation device (HyCHEED) was developed and validated at 37 °C and 46 °C. Through plate electrodes, HyCHEED achieved both a homogeneous electric field and homogenous-stable temperatures; IRE heat was removed through hydraulic cooling. IRE was applied to 300 μL of pancreatic carcinoma cell suspension (Mia PaCa-2), after which cell viability and specific conductivity were determined. HyCHEED maintained stable temperatures within ±1.5 °C with respect to the target temperature for multiple IRE-settings at the selected temperature levels. An increase of cell death and specific conductivity, including post-treatment, was found to depend on electric-field strength and temperature. HyCHEED is capable of maintaining stable temperatures during IRE-experiments. This provides an excellent basis to assess the contribution of thermal effects to IRE and other bio-electromagnetic techniques.
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Affiliation(s)
- Pierre Agnass
- Department of Radiation Oncology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (P.A.); (H.M.R.); (R.Z.); (J.S.); (N.A.P.F.); (A.L.O.); (H.P.K.)
- Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (T.M.v.G.); (E.v.V.); (M.G.B.)
- Laboratory of Experimental Oncology and Radiobiology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Hans M. Rodermond
- Department of Radiation Oncology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (P.A.); (H.M.R.); (R.Z.); (J.S.); (N.A.P.F.); (A.L.O.); (H.P.K.)
- Laboratory of Experimental Oncology and Radiobiology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Center for Experimental Molecular Medicine, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Remko Zweije
- Department of Radiation Oncology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (P.A.); (H.M.R.); (R.Z.); (J.S.); (N.A.P.F.); (A.L.O.); (H.P.K.)
| | - Jan Sijbrands
- Department of Radiation Oncology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (P.A.); (H.M.R.); (R.Z.); (J.S.); (N.A.P.F.); (A.L.O.); (H.P.K.)
| | - Jantien A. Vogel
- Department of Gastroenterology & Hepatology, Amsterdam Gastroenterology and Metabolism, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands;
| | - Krijn P. van Lienden
- Department of Radiology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands;
| | - Thomas M. van Gulik
- Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (T.M.v.G.); (E.v.V.); (M.G.B.)
| | - Eran van Veldhuisen
- Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (T.M.v.G.); (E.v.V.); (M.G.B.)
| | - Nicolaas A. P. Franken
- Department of Radiation Oncology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (P.A.); (H.M.R.); (R.Z.); (J.S.); (N.A.P.F.); (A.L.O.); (H.P.K.)
- Laboratory of Experimental Oncology and Radiobiology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Center for Experimental Molecular Medicine, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Arlene L. Oei
- Department of Radiation Oncology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (P.A.); (H.M.R.); (R.Z.); (J.S.); (N.A.P.F.); (A.L.O.); (H.P.K.)
- Laboratory of Experimental Oncology and Radiobiology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Center for Experimental Molecular Medicine, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - H. Petra Kok
- Department of Radiation Oncology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (P.A.); (H.M.R.); (R.Z.); (J.S.); (N.A.P.F.); (A.L.O.); (H.P.K.)
| | - Marc G. Besselink
- Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (T.M.v.G.); (E.v.V.); (M.G.B.)
| | - Johannes Crezee
- Department of Radiation Oncology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (P.A.); (H.M.R.); (R.Z.); (J.S.); (N.A.P.F.); (A.L.O.); (H.P.K.)
- Correspondence: ; Tel.: +31-20-566-4231
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15
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Comparison of Iron Oxide Nanoparticles in Photothermia and Magnetic Hyperthermia: Effects of Clustering and Silica Encapsulation on Nanoparticles’ Heating Yield. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10207322] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Photothermal therapy is gathering momentum. In order to assess the effects of the encapsulation of individual or clustered superparamagnetic iron oxide nanoparticles (SPIONs) on nanoparticle light-to-heat conversion, we designed and tested individual and clustered SPIONs encapsulated within a silica shell. Our study compared both photothermia and magnetic hyperthermia, and it involved individual SPIONs as well as silica-encapsulated individual and clustered SPIONs. While, as expected, SPION clustering reduced heat generation in magnetic hyperthermia, the silica shell improved SPION heating in photothermia.
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16
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Mota-Rojas D, Olmos-Hernández A, Verduzco-Mendoza A, Lecona-Butrón H, Martínez-Burnes J, Mora-Medina P, Gómez-Prado J, Orihuela A. Infrared thermal imaging associated with pain in laboratory animals. Exp Anim 2020; 70:1-12. [PMID: 32848100 PMCID: PMC7887630 DOI: 10.1538/expanim.20-0052] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The science of animal welfare has evolved over the years, and recent scientific advances
have enhanced our comprehension of the neurological, physiological, and ethological
mechanisms of diverse animal species. Currently, the study of the affective states
(emotions) of nonhuman animals is attracting great scientific interest focused primarily
on negative experiences such as pain, fear, and suffering, which animals experience in
different stages of their lives or during scientific research. Studies underway today seek
to establish methods of evaluation that can accurately measure pain and then develop
effective treatments for it, because the techniques available up to now are not
sufficiently precise. One innovative technology that has recently been incorporated into
veterinary medicine for the specific purpose of studying pain in animals is called
infrared thermography (IRT), a technique that works by detecting and measuring levels of
thermal radiation at different points on the body’s surface with high sensitivity. Changes
in IRT images are associated mainly with blood perfusion, which is modulated by the
mechanisms of vasodilatation and vasoconstriction. IRT is an efficient, noninvasive method
for evaluating and controlling pain, two critical aspects of animal welfare in biomedical
research. The aim of the present review is to compile and analyze studies of infrared
thermographic changes associated with pain in laboratory research involving animals.
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Affiliation(s)
- Daniel Mota-Rojas
- Neurophysiology, Behaviour and Animal Welfare Assessment, DPAA, Universidad Autónoma Metropolitana, Xochimilco, Mexico City, C.P. 04960 Mexico
| | - Adriana Olmos-Hernández
- Division of Biotechnology, Department Bioterio and Experimental Surgery, Instituto Nacional de Rehabilitación-Luis Guillermo Ibarra Ibarra (INR-LGII), Mexico City, C.P. 14389, Mexico
| | - Antonio Verduzco-Mendoza
- Division of Biotechnology, Department Bioterio and Experimental Surgery, Instituto Nacional de Rehabilitación-Luis Guillermo Ibarra Ibarra (INR-LGII), Mexico City, C.P. 14389, Mexico
| | - Hugo Lecona-Butrón
- Division of Biotechnology, Department Bioterio and Experimental Surgery, Instituto Nacional de Rehabilitación-Luis Guillermo Ibarra Ibarra (INR-LGII), Mexico City, C.P. 14389, Mexico
| | - Julio Martínez-Burnes
- Graduate and Research Department, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Tamaulipas, C.P. Victoria City, Tamaulipas, C.P. 87000, Mexico
| | - Patricia Mora-Medina
- Livestock Science Department, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México (UNAM), State of Mexico, C.P. 54740, Mexico
| | - Jocelyn Gómez-Prado
- Neurophysiology, Behaviour and Animal Welfare Assessment, DPAA, Universidad Autónoma Metropolitana, Xochimilco, Mexico City, C.P. 04960 Mexico
| | - Agustín Orihuela
- Facultad de Ciencias Agropecuarias, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, C.P. 62209, México
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A moderate thermal dose is sufficient for effective free and TSL based thermochemotherapy. Adv Drug Deliv Rev 2020; 163-164:145-156. [PMID: 32247801 DOI: 10.1016/j.addr.2020.03.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 03/26/2020] [Accepted: 03/30/2020] [Indexed: 02/07/2023]
Abstract
Hyperthermia, i.e. heating the tumor to a temperature of 40-43 °C is considered by many a valuable treatment to sensitize tumor cells to radiotherapy and chemotherapy. In recent randomized trials the great potential of adding hyperthermia to chemotherapy was demonstrated for treatment of high risk soft tissue sarcoma: +11.4% 5 yrs. overall survival (OS) and for ovarian cancer with peritoneal involvement nearly +12 months OS gain. As a result interest in combining chemotherapy with hyperthermia, i.e. thermochemotherapy, is growing. Extensive biological research has revealed that hyperthermia causes multiple effects, from direct cell kill to improved oxygenation, whereby each effect has a specific temperature range. Thermal sensitization of the tumor cell for chemotherapy occurs for many drugs at temperatures ranging from 40 to 42 °C with little additional increase of sensitization at higher temperatures. Increasing perfusion/oxygenation and increased extravasation are two other important hyperthermia induced mechanisms. The combination of free drug and hyperthermia has not been found to increase tumor drug concentration. Hence, enhanced effectiveness of free drug will depend on the thermal sensitization of the tumor cells for the applied drug. In contrast to free drugs, experimental animal studies combining hyperthermia and thermo-sensitive liposomal (TSL) drugs delivery have demonstrated to result in a substantial increase of the drug concentration in the tumor. For TSL based chemotherapy, hyperthermia is critical to both increase perfusion and extravasation as well as to trigger TSL drug release, whereby the temperature controlled induction of a local high drug concentration in a highly permeable vessel is driving the enhanced drug uptake in the tumor. Increased drug concentrations up to 26 times have been reported in rodents. Good control of the tissue temperature is required to keep temperatures below 43 °C to prevent vascular stasis. Further, careful timing of the drug application relative to the start of heating is required to benefit optimal from the combined treatment. From the available experimental data it follows that irrespective whether chemotherapy is applied as free drug or using a thermal sensitive liposomal carrier, the optimal thermal dose for thermochemotherapy should be 40-42 °C for 30-60 min, i.e. equivalent to a CEM43 of 1-15 min. Timing is critical: most free drug should be applied simultaneous with heating, whereas TSL drugs should be applied 20-30 min after the start of hyperthermia.
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18
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Dunne M, Regenold M, Allen C. Hyperthermia can alter tumor physiology and improve chemo- and radio-therapy efficacy. Adv Drug Deliv Rev 2020; 163-164:98-124. [PMID: 32681862 DOI: 10.1016/j.addr.2020.07.007] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/07/2020] [Accepted: 07/10/2020] [Indexed: 12/20/2022]
Abstract
Hyperthermia has demonstrated clinical success in improving the efficacy of both chemo- and radio-therapy in solid tumors. Pre-clinical and clinical research studies have demonstrated that targeted hyperthermia can increase tumor blood flow and increase the perfused fraction of the tumor in a temperature and time dependent manner. Changes in tumor blood circulation can produce significant physiological changes including enhanced vascular permeability, increased oxygenation, decreased interstitial fluid pressure, and reestablishment of normal physiological pH conditions. These alterations in tumor physiology can positively impact both small molecule and nanomedicine chemotherapy accumulation and distribution within the tumor, as well as the fraction of the tumor susceptible to radiation therapy. Hyperthermia can trigger drug release from thermosensitive formulations and further improve the accumulation, distribution, and efficacy of chemotherapy.
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19
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Shrestha B, Tang L, Romero G. Nanoparticles‐Mediated Combination Therapies for Cancer Treatment. ADVANCED THERAPEUTICS 2019. [DOI: 10.1002/adtp.201900076] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Binita Shrestha
- Department of Biomedical Engineering University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Liang Tang
- Department of Biomedical Engineering University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Gabriela Romero
- Department of Chemical Engineering University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
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20
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Hendrix RJ, Kassira JP, Lambert LA. Elevated Maximum Core Body Temperature During Hyperthermic Intraperitoneal Chemoperfusion (HIPEC) is Associated with Increased Postoperative Complications. Ann Surg Oncol 2019; 27:232-239. [PMID: 31286314 DOI: 10.1245/s10434-019-07495-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Indexed: 01/16/2023]
Abstract
BACKGROUND Hyperthermia enhances the cytotoxicity of chemotherapeutic agents used during cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemoperfusion (HIPEC). However, this may result in an elevated core body temperature (CBT), with unintended effects on surgical morbidity. This study evaluates the relationship of maximum CBT during CRS/HIPEC on postoperative outcomes. METHODS A retrospective review of patients undergoing CRS/HIPEC from January 2011 to July 2017 was performed. Outcomes were stratified according to maximum CBT reached during HIPEC. Primary study endpoints were 30-day morbidity and 30-day complication severity. RESULTS Overall, 135 consecutive CRS/HIPEC cases were reviewed; 36 (27%) had a maximum CBT ≥ 39.5 °C during the 90-min HIPEC. CBT ≥ 39.5 °C was associated with an increase in 30-day postoperative complications (58% vs. 34%, p = 0.01) and severe Clavien-Dindo grade III or higher complications (22% vs. 11%, p = 0.04). On multivariate analysis, the adjusted odds ratio of having any complication was 3.77 (95% confidence interval [CI] 1.56-9.14) and a Clavien-Dindo grade III or higher complication was 3.46 (95% CI 1.10-10.95) when maximum CBT reached 39.5 °C. Flow rates ≥ 2.35 L/min were associated with lower average CBT (p = 0.05) and improved peritoneal heating (p = 0.02). CONCLUSION Maximum CBT ≥ 39.5 °C is associated with an increased risk of postoperative morbidity. Higher flow rates are associated with improved intraperitoneal heating, lower CBT, and may contribute to optimizing the therapeutic benefit of HIPEC.
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Affiliation(s)
- Ryan J Hendrix
- Division of Surgical Oncology, Department of Surgery, University of Massachusetts Medical School, Worcester, MA, USA
| | - Jonathan P Kassira
- Division of Surgical Oncology, Department of Surgery, University of Massachusetts Medical School, Worcester, MA, USA
| | - Laura A Lambert
- Section of Surgical Oncology, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA.
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21
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Elming PB, Sørensen BS, Oei AL, Franken NAP, Crezee J, Overgaard J, Horsman MR. Hyperthermia: The Optimal Treatment to Overcome Radiation Resistant Hypoxia. Cancers (Basel) 2019; 11:E60. [PMID: 30634444 PMCID: PMC6356970 DOI: 10.3390/cancers11010060] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 12/14/2018] [Accepted: 12/29/2018] [Indexed: 12/23/2022] Open
Abstract
Regions of low oxygenation (hypoxia) are a characteristic feature of solid tumors, and cells existing in these regions are a major factor influencing radiation resistance as well as playing a significant role in malignant progression. Consequently, numerous pre-clinical and clinical attempts have been made to try and overcome this hypoxia. These approaches involve improving oxygen availability, radio-sensitizing or killing the hypoxic cells, or utilizing high LET (linear energy transfer) radiation leading to a lower OER (oxygen enhancement ratio). Interestingly, hyperthermia (heat treatments of 39⁻45 °C) induces many of these effects. Specifically, it increases blood flow thereby improving tissue oxygenation, radio-sensitizes via DNA repair inhibition, and can kill cells either directly or indirectly by causing vascular damage. Combining hyperthermia with low LET radiation can even result in anti-tumor effects equivalent to those seen with high LET. The various mechanisms depend on the time and sequence between radiation and hyperthermia, the heating temperature, and the time of heating. We will discuss the role these factors play in influencing the interaction between hyperthermia and radiation, and summarize the randomized clinical trials showing a benefit of such a combination as well as suggest the potential future clinical application of this combination.
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Affiliation(s)
- Pernille B Elming
- Department of Experimental Clinical Oncology, Aarhus University Hospital, DK-8000 Aarhus C, Denmark.
| | - Brita S Sørensen
- Department of Experimental Clinical Oncology, Aarhus University Hospital, DK-8000 Aarhus C, Denmark.
| | - Arlene L Oei
- Department of Radiation Oncology, Academic University Medical Centers, University of Amsterdam, 1105AZ Amsterdam, The Netherlands.
| | - Nicolaas A P Franken
- Department of Radiation Oncology, Academic University Medical Centers, University of Amsterdam, 1105AZ Amsterdam, The Netherlands.
| | - Johannes Crezee
- Department of Radiation Oncology, Academic University Medical Centers, University of Amsterdam, 1105AZ Amsterdam, The Netherlands.
| | - Jens Overgaard
- Department of Experimental Clinical Oncology, Aarhus University Hospital, DK-8000 Aarhus C, Denmark.
| | - Michael R Horsman
- Department of Experimental Clinical Oncology, Aarhus University Hospital, DK-8000 Aarhus C, Denmark.
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Centelles MN, Wright M, So PW, Amrahli M, Xu XY, Stebbing J, Miller AD, Gedroyc W, Thanou M. Image-guided thermosensitive liposomes for focused ultrasound drug delivery: Using NIRF-labelled lipids and topotecan to visualise the effects of hyperthermia in tumours. J Control Release 2018; 280:87-98. [DOI: 10.1016/j.jconrel.2018.04.047] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 04/25/2018] [Accepted: 04/27/2018] [Indexed: 12/26/2022]
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Gazel D, Yılmaz M. Are infectious diseases and microbiology new fields for thermal therapy research? Int J Hyperthermia 2018; 34:918-924. [PMID: 29448846 DOI: 10.1080/02656736.2018.1440015] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Antimicrobial chemotherapy and surgery are classical methods for treating infectious diseases. However, there is a need for alternative methods to cure infections caused by antibiotic-resistant pathogens, recurrent or chronic infections, and unreachable local infections in which the use of drugs or surgery is anatomically and physically restricted. Several micro-organisms are known to be sensitive to mild hyperthermia, and this sensitivity is one of the potential benefits proposed for the host during an episode of fever. Additionally, some immunological or biophysical changes occur during hyperthermia. These changes may be useful for eliminating thermo-susceptible microbial pathogens using local heat therapy. There are several experimental studies proposing the use of hyperthermia to treat local infections. The infected organs or tissues may be heated up to a temperature that can inhibit invading microorganisms. Here, it is hypothesised that local heat therapy may become an alternative or adjuvant method for curing local infections. Here, we highlight the potential for local hyperthermia in the treatment of bacterial infections caused by thermo-susceptible pathogens in a systematic plan. If the proposed thermal-microbiology concepts and local thermal therapies can be adapted to clinical microbiology and infectiology, new medical fields, such as thermo-microbiology and thermo-infectiology, may be created in the future.
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Affiliation(s)
- Deniz Gazel
- a Department of Medical Microbiology, Faculty of Medicine , Gaziantep University , Gaziantep , Turkey
| | - Mehmet Yılmaz
- b Division of Hematology, Department of Internal Medicine, Faculty of Medicine , Sanko University , Gaziantep , Turkey
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Siemann DW, Chaplin DJ, Horsman MR. Realizing the Potential of Vascular Targeted Therapy: The Rationale for Combining Vascular Disrupting Agents and Anti-Angiogenic Agents to Treat Cancer. Cancer Invest 2017; 35:519-534. [DOI: 10.1080/07357907.2017.1364745] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- D. W. Siemann
- Department of Radiation Oncology, University of Florida, Gainesville, FL, USA
| | | | - M. R. Horsman
- Department of Experimental Clinical Oncology, Aarhus University, Denmark
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Dou Y, Hynynen K, Allen C. To heat or not to heat: Challenges with clinical translation of thermosensitive liposomes. J Control Release 2017; 249:63-73. [DOI: 10.1016/j.jconrel.2017.01.025] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 01/17/2017] [Accepted: 01/17/2017] [Indexed: 12/20/2022]
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26
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Lam MK, Oerlemans C, Froeling M, Deckers R, Barten-Van Rijbroek AD, Viergever MA, Moonen CTW, Bos C, Bartels LW. DCE-MRI and IVIM-MRI of rabbit Vx2 tumors treated with MR-HIFU-induced mild hyperthermia. J Ther Ultrasound 2016; 4:9. [PMID: 26981241 PMCID: PMC4791929 DOI: 10.1186/s40349-016-0052-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 02/29/2016] [Indexed: 02/03/2023] Open
Abstract
Background The purpose of this study is to investigate whether changes could be detected in dynamic contrast-enhanced (DCE) and intra-voxel incoherent motion (IVIM) MR parameters upon MR-guided high-intensity focused ultrasound (MR-HIFU)-induced hyperthermia in a rabbit Vx2 tumor model. Methods Five Vx2 tumor-bearing New Zealand white rabbits were treated with hyperthermia using a clinical MR-HIFU system. Data were acquired before and after hyperthermia. For the DCE analysis, the extended Tofts model was used. For the IVIM analysis, a Bayesian approach was used. Maps were reconstructed of the DCE parameters (Ktrans, kep, and vp) and IVIM parameters (Dt, fp, and Dp). Individual parameter histograms and two-dimensional cross-correlation histograms were constructed to analyze changes in the parameters after hyperthermia. Changes in median values were tested for statistical significance with the Mann-Whitney U test. Results The MR temperature measurements confirmed that mild hyperthermia (40 to 42 °C) was successfully achieved in all rabbits. One rabbit died during treatment and was excluded from the analysis. In the remaining four rabbits, an increase in Dt was observed. In three rabbits, an increase in Ktrans was observed, while in the other rabbits, all three DCE parameter values decreased. Mixed changes were seen for vp and fp. Conclusions Changes in DCE and IVIM parameters were detected after hyperthermia and were variable between the rabbits. DCE- and IVIM-MRI may be promising tools to assess tumor responses to hyperthermia. Further research in a larger number of subjects is necessary in order to assess their value for treatment response monitoring.
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Affiliation(s)
- Mie K Lam
- Imaging Division, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Chris Oerlemans
- Imaging Division, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Martijn Froeling
- Imaging Division, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Roel Deckers
- Imaging Division, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Max A Viergever
- Imaging Division, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Chrit T W Moonen
- Imaging Division, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Clemens Bos
- Imaging Division, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Lambertus W Bartels
- Imaging Division, University Medical Center Utrecht, Utrecht, The Netherlands
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van Rhoon GC. Is CEM43 still a relevant thermal dose parameter for hyperthermia treatment monitoring? Int J Hyperthermia 2016; 32:50-62. [DOI: 10.3109/02656736.2015.1114153] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Horsman MR. Realistic biological approaches for improving thermoradiotherapy. Int J Hyperthermia 2015; 32:14-22. [DOI: 10.3109/02656736.2015.1099169] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Siemann DW, Horsman MR. Modulation of the tumor vasculature and oxygenation to improve therapy. Pharmacol Ther 2015; 153:107-24. [PMID: 26073310 DOI: 10.1016/j.pharmthera.2015.06.006] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 06/03/2015] [Indexed: 12/12/2022]
Abstract
The tumor microenvironment is increasingly recognized as a major factor influencing the success of therapeutic treatments and has become a key focus for cancer research. The progressive growth of a tumor results in an inability of normal tissue blood vessels to oxygenate and provide sufficient nutritional support to tumor cells. As a consequence the expanding neoplastic cell population initiates its own vascular network which is both structurally and functionally abnormal. This aberrant vasculature impacts all aspects of the tumor microenvironment including the cells, extracellular matrix, and extracellular molecules which together are essential for the initiation, progression and spread of tumor cells. The physical conditions that arise are imposing and manifold, and include elevated interstitial pressure, localized extracellular acidity, and regions of oxygen and nutrient deprivation. No less important are the functional consequences experienced by the tumor cells residing in such environments: adaptation to hypoxia, cell quiescence, modulation of transporters and critical signaling molecules, immune escape, and enhanced metastatic potential. Together these factors lead to therapeutic barriers that create a significant hindrance to the control of cancers by conventional anticancer therapies. However, the aberrant nature of the tumor microenvironments also offers unique therapeutic opportunities. Particularly interventions that seek to improve tumor physiology and alleviate tumor hypoxia will selectively impair the neoplastic cell populations residing in these environments. Ultimately, by combining such therapeutic strategies with conventional anticancer treatments it may be possible to bring cancer growth, invasion, and metastasis to a halt.
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Affiliation(s)
- Dietmar W Siemann
- Department of Radiation Oncology, University of Florida Health Cancer Center, Gainesville, FL, USA.
| | - Michael R Horsman
- Department of Experimental Clinical Oncology, Aarhus University Hospital-NBG, Aarhus, Denmark
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Horsman MR. Therapeutic potential of using the vascular disrupting agent OXi4503 to enhance mild temperature thermoradiation. Int J Hyperthermia 2015; 31:453-9. [PMID: 25915829 DOI: 10.3109/02656736.2015.1024289] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
PURPOSE The response of tissues to radiation with mild temperature hyperthermia is dependent on the interval between the two modalities. This study investigated the effect that the vascular disrupting agent OXi4503 had on this time-interval interaction. METHODS The normal right rear foot of female CDF1 mice or foot-implanted C3H mammary carcinomas were locally irradiated (230 kV X-rays) and heated (41.5 °C for 60 min) by foot immersion in a water bath. OXi4503 (50 mg/kg) was injected intraperitoneally 1.5 h before irradiating. Irradiation was performed either in the middle of the heating period (simultaneous treatment) or at 1 or 4 h prior to starting the heating (sequential treatments). Response was the percentage of mice showing local tumour control at 90 days or skin moist desquamation between days 11-23. From the radiation dose response curves the dose producing tumour control (TCD(50)) or moist desquamation (MDD50) in 50% of mice was calculated. RESULTS The TCD(50) and MDD50 values for radiation alone were 54 Gy and 29 Gy, respectively. Simultaneously heating the tissues enhanced radiation response, the respective TCD(50) and MDD50 values being significantly (chi-square test, p < 0.05) reduced to 33 Gy and 14 Gy. A smaller enhancement was obtained with a sequential treatment in both tissues. OXi4503 enhanced the radiation response of tumour and skin. Combined with radiation and heat, the only effect was in tumours where OXi4503 prevented the decrease in sensitisation seen with the sequential treatment. CONCLUSION Combining OXi4503 with a sequential radiation and heat treatment resulted in a 1.4-fold therapeutic gain.
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Affiliation(s)
- Michael R Horsman
- Department of Experimental Clinical Oncology, Aarhus University Hospital , Aarhus , Denmark
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Can Mineral Trioxide Aggregate and Nanoparticulate EndoSequence Root Repair Material Produce Injurious Effects to Rat Subcutaneous Tissues? J Endod 2015; 41:1151-6. [PMID: 25887808 DOI: 10.1016/j.joen.2015.02.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 02/03/2015] [Accepted: 02/15/2015] [Indexed: 11/20/2022]
Abstract
INTRODUCTION The aim of this study was to evaluate the injurious effects of mineral trioxide Aggregate (MTA) and EndoSequence Bioceramic Root Repair Material (ERRM; Brassler USA, Savannah, GA) 7 and 30 days after their implantation into rat subcutaneous tissues. METHODS Twelve Wistar rats were selected for the present study. Each animal received 3 implants: one contained MTA, one contained ERRM, and one was an empty tube that served as a control. Half of the animals were killed after 7 days, and the remaining animals were killed 30 days after implantation. Histologic sections prepared from the skin specimens were stained with H&E, toluidine blue, Masson trichrome, and Congo red. The data were statistically analyzed with 1-way analysis of variance and paired t tests. The P value for significance was set at .05. RESULTS After 7 days, MTA produced a significantly greater inflammatory reaction that involved the deposition of amyloidlike protein and an increase in the mast cell population compared with ERRM (P < .05). After 30 days, the ERRM group exhibited significantly reduced inflammatory reactions compared to the MTA groups (P < .05). Areas of mononuclear cell aggregation, abscess formation, and necrosis were observed more frequently in the MTA group. The thickness of the fibrous capsule was significantly increased in the MTA compared with the ERRM groups (P < .05). Amyloidlike proteins were more frequently observed around the fibrous capsule and subdermal blood vessels and were more frequently deposited in the MTA than the ERRM specimens. CONCLUSIONS The findings of the present study suggest that both ERRM and MTA cause an injurious effect when implanted in rat subcutaneous tissues after 7 and 30 days. ERRM is significantly less injurious to tissues than MTA.
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Wu F. High intensity focused ultrasound: A noninvasive therapy for locally advanced pancreatic cancer. World J Gastroenterol 2014; 20:16480-16488. [PMID: 25469016 PMCID: PMC4248191 DOI: 10.3748/wjg.v20.i44.16480] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 07/08/2014] [Accepted: 08/28/2014] [Indexed: 02/06/2023] Open
Abstract
The noninvasive ablation of pancreatic cancer with high intensity focused ultrasound (HIFU) energy is received increasingly widespread interest. With rapidly temperature rise to cytotoxic levels within the focal volume of ultrasound beams, HIFU can selectively ablate a targeted lesion of the pancreas without any damage to surrounding or overlying tissues. Preliminary studies suggest that this approach is technical safe and feasible, and can be used alone or in combination with systemic chemotherapy for the treatment of patients with locally advanced pancreatic cancer. It can effectively alleviate cancer-related abdominal pain, and may confer an additional survival benefit with few significant complications. This review provides a brief overview of HIFU, describes current clinical applications, summarizes characteristics of continuous and pulsed HIFU, and discusses future applications and challenges in the treatment of pancreatic cancer.
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Hou CH, Lin FL, Hou SM, Liu JF. Hyperthermia induces apoptosis through endoplasmic reticulum and reactive oxygen species in human osteosarcoma cells. Int J Mol Sci 2014; 15:17380-95. [PMID: 25268613 PMCID: PMC4227168 DOI: 10.3390/ijms151017380] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Revised: 08/12/2014] [Accepted: 09/16/2014] [Indexed: 02/06/2023] Open
Abstract
Osteosarcoma (OS) is a relatively rare form of cancer, but OS is the most commonly diagnosed bone cancer in children and adolescents. Chemotherapy has side effects and induces drug resistance in OS. Since an effective adjuvant therapy was insufficient for treating OS, researching novel and adequate remedies is critical. Hyperthermia can induce cell death in various cancer cells, and thus, in this study, we investigated the anticancer method of hyperthermia in human OS (U-2 OS) cells. Treatment at 43 °C for 60 min induced apoptosis in human OS cell lines, but not in primary bone cells. Furthermore, hyperthermia was associated with increases of intracellular reactive oxygen species (ROS) and caspase-3 activation in U-2 OS cells. Mitochondrial dysfunction was followed by the release of cytochrome c from the mitochondria, and was accompanied by decreased anti-apoptotic Bcl-2 and Bcl-xL, and increased pro-apoptotic proteins Bak and Bax. Hyperthermia triggered endoplasmic reticulum (ER) stress, which was characterized by changes in cytosolic calcium levels, as well as increased calpain expression and activity. In addition, cells treated with calcium chelator (BAPTA-AM) blocked hyperthermia-induced cell apoptosis in U-2 OS cells. In conclusion, hyperthermia induced cell apoptosis substantially via the ROS, ER stress, mitochondria, and caspase pathways. Thus, hyperthermia may be a novel anticancer method for treating OS.
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Affiliation(s)
- Chun-Han Hou
- Department of Orthopedic Surgery, National Taiwan University Hospital, Taipei 100, Taiwan.
| | - Feng-Ling Lin
- Department of Dermatology, Sijhih Cathay General Hospital, Taipei 221, Taiwan.
| | - Sheng-Mon Hou
- Department of Orthopedic Surgery, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei 111, Taiwan.
| | - Ju-Fang Liu
- Central Laboratory, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei 111, Taiwan.
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Takagi H, Azuma K, Tsuka T, Imagawa T, Osaki T, Okamoto Y. Antitumor effects of high-temperature hyperthermia on a glioma rat model. Oncol Lett 2014; 7:1007-1010. [PMID: 24944659 PMCID: PMC3961387 DOI: 10.3892/ol.2014.1852] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Accepted: 10/31/2013] [Indexed: 11/05/2022] Open
Abstract
High-temperature hyperthermia (HTH) is an established treatment option for cancer. The aim of the present study was to reveal the exact correlation between HTH at temperatures of 50-70°C and the resulting antitumor effects, using a glioma rat model. In the 60°C (T-60) and 70°C (T-70) HTH groups, tumor growth rates were significantly suppressed compared with those in the nontreatment (NT) group. In the 50°C (T-50) HTH group, tumor growth rates were not suppressed compared with those in the NT group. The numbers of terminal dUTP nick-end labeling-positive cells in tumor tissue were significantly higher in the T-50, T-60 and T-70 groups than those in the NT group. The Ki-67-positive areas were significantly decreased in the T-70 group compared with those in the NT and T-60 groups. Our data indicate that HTH at 60 and 70°C suppresses tumor growth in a glioma rat model. In particular, cell proliferation was significantly suppressed by HTH at 70°C. However, differences in the mechanism of action of HTH at 60 and 70°C were observed.
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Affiliation(s)
- Hidefumi Takagi
- The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi 753-8515, Japan ; Takagi Animal Clinic, Saijo, Ehime 793-0035, Japan
| | - Kazuo Azuma
- Faculty of Agriculture, Tottori University, Tottori 680-8533, Japan
| | - Takeshi Tsuka
- Faculty of Agriculture, Tottori University, Tottori 680-8533, Japan
| | - Tomohiro Imagawa
- Faculty of Agriculture, Tottori University, Tottori 680-8533, Japan
| | - Tomohiro Osaki
- Faculty of Agriculture, Tottori University, Tottori 680-8533, Japan
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Dou YN, Zheng J, Foltz WD, Weersink R, Chaudary N, Jaffray DA, Allen C. Heat-activated thermosensitive liposomal cisplatin (HTLC) results in effective growth delay of cervical carcinoma in mice. J Control Release 2014; 178:69-78. [PMID: 24440663 DOI: 10.1016/j.jconrel.2014.01.009] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 01/06/2014] [Accepted: 01/07/2014] [Indexed: 10/25/2022]
Abstract
Cisplatin (CDDP) has been identified as the primary chemotherapeutic agent for the treatment of cervical cancer, but dose limiting toxicity is a key issue associated with its clinical application. A suite of liposome formulations of CDDP has been developed in efforts to reduce systemic toxicity, but their therapeutic advantage over the free drug has been modest due to insufficient drug release at the tumor site. This report describes the development of a novel heat-activated thermosensitive liposome formulation containing CDDP (HTLC) designed to release approximately 90% of the loaded drug in less than 5min under mild heating conditions (42°C). Physico-chemical characteristics of HTLC were assessed in terms of gel to liquid crystalline phase transition temperature (Tm), drug loading efficiency, particle size, and stability. The pharmacokinetic profile and biodistribution of HTLC in non-tumor-bearing mice were evaluated over a 24h period. A sophisticated spatio-temporal elucidation of HTLC release in tumor-bearing mice was achieved by way of real-time monitoring using a magnetic resonance (MR) imaging protocol, wherein a custom-built laser-based conformal heat source was applied at the tumor volume to trigger the release of HTLC co-encapsulated with the MR contrast agent gadoteridol (Gd-HP-DO3A). MR thermometry (MRT) demonstrated that a relatively uniform temperature distribution was achieved in the tumor volume using the external laser-based heating setup. In mice bearing subcutaneously-implanted ME-180 cervical tumors, the combination of HTLC and heat resulted in a 2-fold increase in tumor drug levels at 1h post-administration compared to HTLC without heating. Furthermore, the overall tumor accumulation levels for the HTLC groups (with and without heat) at 1h post-injection were significantly higher than the corresponding free CDDP group. This translated into a significant improvement in therapeutic efficacy evaluated as tumor growth delay (p<0.05) for the heated HTLC treatment group compared to the unheated HTLC, heated or unheated free CDDP, and saline groups. Overall, findings from this study demonstrate that a heat-activated, triggered release formulation of CDDP results in a significant enhancement in the therapeutic index of this drug.
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Affiliation(s)
- Yannan N Dou
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
| | - Jinzi Zheng
- STTARR Innovation Center, University Health Network, Toronto, ON M5G 1L7, Canada; Techna Institute, Radiation Medicine Program, Princess Margaret Cancer Center, University Health Network, Toronto, ON M5G 1L7, Canada
| | - Warren D Foltz
- STTARR Innovation Center, University Health Network, Toronto, ON M5G 1L7, Canada; Techna Institute, Radiation Medicine Program, Princess Margaret Cancer Center, University Health Network, Toronto, ON M5G 1L7, Canada
| | - Robert Weersink
- Techna Institute, Radiation Medicine Program, Princess Margaret Cancer Center, University Health Network, Toronto, ON M5G 1L7, Canada
| | - Naz Chaudary
- Ontario Cancer Institute, University Health Network, Toronto, ON M5G 2M9, Canada
| | - David A Jaffray
- STTARR Innovation Center, University Health Network, Toronto, ON M5G 1L7, Canada; Techna Institute, Radiation Medicine Program, Princess Margaret Cancer Center, University Health Network, Toronto, ON M5G 1L7, Canada; Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 2M9, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON M5G 2M9, Canada; Institute of Biomaterials & Biomedical Engineering, University of Toronto, Toronto, ON M5S 1A1, Canada.
| | - Christine Allen
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada; STTARR Innovation Center, University Health Network, Toronto, ON M5G 1L7, Canada.
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Analysis of the distribution of magnetic fluid inside tumors by a giant magnetoresistance probe. PLoS One 2013; 8:e81227. [PMID: 24312280 PMCID: PMC3843682 DOI: 10.1371/journal.pone.0081227] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2013] [Accepted: 10/10/2013] [Indexed: 11/19/2022] Open
Abstract
Magnetic fluid hyperthermia (MFH) therapy uses the magnetic component of electromagnetic fields in the radiofrequency spectrum to couple energy to magnetic nanoparticles inside tumors. In MFH therapy, magnetic fluid is injected into tumors and an alternating current (AC) magnetic flux is applied to heat the magnetic fluid- filled tumor. If the temperature can be maintained at the therapeutic threshold of 42°C for 30 minutes or more, the tumor cells can be destroyed. Analyzing the distribution of the magnetic fluid injected into tumors prior to the heating step in MFH therapy is an essential criterion for homogenous heating of tumors, since a decision can then be taken on the strength and localization of the applied external AC magnetic flux density needed to destroy the tumor without affecting healthy cells. This paper proposes a methodology for analyzing the distribution of magnetic fluid in a tumor by a specifically designed giant magnetoresistance (GMR) probe prior to MFH heat treatment. Experimental results analyzing the distribution of magnetic fluid suggest that different magnetic fluid weight densities could be estimated inside a single tumor by the GMR probe.
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Wu F. High intensity focused ultrasound ablation and antitumor immune response. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2013; 134:1695-1701. [PMID: 23927210 DOI: 10.1121/1.4812893] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The ideal cancer therapy not only induces the death of all localized tumor cells without damage to surrounding normal tissue, but also activates a systemic antitumor immunity. High intensity focused ultrasound (HIFU) has the potential to be such a treatment, as it can non-invasively ablate a targeted tumor below the skin surface, and may subsequently augment host antitumor immunity. This paper is to review increasing pre-clinical and clinical evidence linking antitumor immune response to HIFU ablation, and to discuss the potential mechanisms involved in HIFU-enhanced host antitumor immunity. The seminal studies performed so far indicate that although it is not possible to conclude definitively on the connection between HIFU treatment and antitumor immune response, it is nonetheless important to conduct extensive studies on the subject in order to elucidate the processes involved.
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Affiliation(s)
- Feng Wu
- Institute of Ultrasonic Engineering in Medicine, Chongqing Medical University, 1 Medical College Road, Chongqing 400016, People's Republic of China.
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de Smet M, Langereis S, van den Bosch S, Bitter K, Hijnen NM, Heijman E, Grüll H. SPECT/CT imaging of temperature-sensitive liposomes for MR-image guided drug delivery with high intensity focused ultrasound. J Control Release 2013; 169:82-90. [PMID: 23598044 DOI: 10.1016/j.jconrel.2013.04.005] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 04/01/2013] [Accepted: 04/04/2013] [Indexed: 01/30/2023]
Abstract
The goal of this study was to investigate the blood kinetics and biodistribution of temperature-sensitive liposomes (TSLs) for MR image-guided drug delivery. The co-encapsulated doxorubicin and [Gd(HPDO3A)(H₂O)] as well as the ¹¹¹In-labeled liposomal carrier were quantified in blood and organs of tumor bearing rats. After TSL injection, mild hyperthermia (T=42 °C) was induced in the tumor using high intensity focused ultrasound under MR image-guidance (MR-HIFU). The biodistribution of the radiolabeled TSLs was investigated using SPECT/CT imaging, where the highest uptake of ¹¹¹In-labeled TSLs was observed in the spleen and liver. The MR-HIFU-treated tumors showed 4.4 times higher liposome uptake after 48 h in comparison with controls, while the doxorubicin concentration was increased by a factor of 7.9. These effects of HIFU-treatment are promising for applications in liposomal drug delivery to tumors.
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Affiliation(s)
- Mariska de Smet
- Department of Biomedical Engineering, Biomedical NMR, Eindhoven University of Technology, Eindhoven, The Netherlands
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Portela A, Vasconcelos M, Fernandes MH, Garcia M, Silva A, Gabriel J, Gartner F, Amorim I, Cavalheiro J. Highly focalised thermotherapy using a ferrimagnetic cement in the treatment of a melanoma mouse model by low temperature hyperthermia. Int J Hyperthermia 2013; 29:121-32. [DOI: 10.3109/02656736.2013.767478] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Vaupel PW, Kelleher DK. Blood flow and associated pathophysiology of uterine cervix cancers: Characterisation and relevance for localised hyperthermia. Int J Hyperthermia 2012; 28:518-27. [DOI: 10.3109/02656736.2012.699134] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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41
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Gormley AJ, Malugin A, Ray A, Robinson R, Ghandehari H. Biological evaluation of RGDfK-gold nanorod conjugates for prostate cancer treatment. J Drug Target 2012; 19:915-24. [PMID: 22082105 DOI: 10.3109/1061186x.2011.623701] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Selective delivery of gold nanorods (GNRs) to sites of prostate tumor angiogenesis is potentially advantageous for localized photothermal therapy. Here, we report the cellular uptake and biodistribution of GNRs surface functionalized with the cyclic RGDfK peptide. The GNRs were synthesized to have a surface plasmon resonance (SPR) peak at 800?nm and grafted with a thiolated poly(ethylene glycol) (PEG) corona with or without RGDfK. The binding and uptake of the targeted (RGDfK) and untargeted GNRs were evaluated in DU145 prostate cancer and human umbilical vein endothelial cells (HUVEC) by high-resolution dark field microscopy, inductively coupled plasma mass spectrometry (ICP-MS), and transmission electron microscopy (TEM). The biodistribution of both GNRs was then evaluated in prostate tumor bearing mice. Targeting of the RGDfK surface-modified GNRs was confirmed in vitro due to selective binding and uptake by endothelial cells. Tumor targeting was not observed in vivo, however, due to fast clearance of the RGDfK-GNRs from the blood. Further modifications of the nanoparticle?s surface properties are needed to enhance localization of the targetable system in sites of tumor angiogenesis.
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Affiliation(s)
- Adam J Gormley
- Department of Bioengineering, Nano Institute of Utah, Salt Lake City, UT, USA
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Hu R, Zhang X, Liu X, Xu B, Yang H, Xia Q, Li L, Chen C, Tang J. Higher temperature improves the efficacy of magnetic fluid hyperthermia for Lewis lung cancer in a mouse model. Thorac Cancer 2012; 3:34-39. [PMID: 28920259 DOI: 10.1111/j.1759-7714.2011.00075.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
PURPOSE The aim of this study was to investigate the effect of a higher temperature on the efficacy of magnetic fluid hyperthermia for Lewis lung cancer in a mouse model. MATERIALS AND METHODS Magnetic fluids were prepared in vitro and directly injected into tumors. Twenty-four hours later, the mice were subjected to an alternating magnetic field. The temperature in the tumor was increased to 46.0°C, higher than the usual temperature used in hyperthermia therapy. The higher temperature was maintained for 30 min with a stable strength of magnetic field. RESULTS Magnetic fluid hyperthermia with a higher temperature significantly inhibited the growth of the tumors (P < 0.05). The tumors completely regressed in four out of 12 mice. Histological analysis demonstrated that the tumor cells underwent apoptosis and necrosis, and the cells were arrested at the G1/G0 phase of the cell cycle. The lifespan of the treated animals also increased significantly (P < 0.05). CONCLUSIONS Magnetic fluid hyperthermia with a higher temperature could improve the efficacy of this therapy on lung cancer.
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Affiliation(s)
- Runlei Hu
- Department of Thoracic Surgery, Hangzhou First People's Hospital, Hangzhou, Zhejiang Province, China Institute of Medical Physics and Engineering, Tsinghua University, Beijing, China Department of Biochemistry and Molecular Biology, China-Japan Friendship Institute of Clinical Medical Sciences, Beijing, China Department of Thoracic Surgery, First Affiliated Hospital of Kunming Medical College, Kunming, Yunnan Province, China
| | - Xiaodong Zhang
- Department of Thoracic Surgery, Hangzhou First People's Hospital, Hangzhou, Zhejiang Province, China Institute of Medical Physics and Engineering, Tsinghua University, Beijing, China Department of Biochemistry and Molecular Biology, China-Japan Friendship Institute of Clinical Medical Sciences, Beijing, China Department of Thoracic Surgery, First Affiliated Hospital of Kunming Medical College, Kunming, Yunnan Province, China
| | - Xuan Liu
- Department of Thoracic Surgery, Hangzhou First People's Hospital, Hangzhou, Zhejiang Province, China Institute of Medical Physics and Engineering, Tsinghua University, Beijing, China Department of Biochemistry and Molecular Biology, China-Japan Friendship Institute of Clinical Medical Sciences, Beijing, China Department of Thoracic Surgery, First Affiliated Hospital of Kunming Medical College, Kunming, Yunnan Province, China
| | - Bo Xu
- Department of Thoracic Surgery, Hangzhou First People's Hospital, Hangzhou, Zhejiang Province, China Institute of Medical Physics and Engineering, Tsinghua University, Beijing, China Department of Biochemistry and Molecular Biology, China-Japan Friendship Institute of Clinical Medical Sciences, Beijing, China Department of Thoracic Surgery, First Affiliated Hospital of Kunming Medical College, Kunming, Yunnan Province, China
| | - Hongsheng Yang
- Department of Thoracic Surgery, Hangzhou First People's Hospital, Hangzhou, Zhejiang Province, China Institute of Medical Physics and Engineering, Tsinghua University, Beijing, China Department of Biochemistry and Molecular Biology, China-Japan Friendship Institute of Clinical Medical Sciences, Beijing, China Department of Thoracic Surgery, First Affiliated Hospital of Kunming Medical College, Kunming, Yunnan Province, China
| | - Qisheng Xia
- Department of Thoracic Surgery, Hangzhou First People's Hospital, Hangzhou, Zhejiang Province, China Institute of Medical Physics and Engineering, Tsinghua University, Beijing, China Department of Biochemistry and Molecular Biology, China-Japan Friendship Institute of Clinical Medical Sciences, Beijing, China Department of Thoracic Surgery, First Affiliated Hospital of Kunming Medical College, Kunming, Yunnan Province, China
| | - Liya Li
- Department of Thoracic Surgery, Hangzhou First People's Hospital, Hangzhou, Zhejiang Province, China Institute of Medical Physics and Engineering, Tsinghua University, Beijing, China Department of Biochemistry and Molecular Biology, China-Japan Friendship Institute of Clinical Medical Sciences, Beijing, China Department of Thoracic Surgery, First Affiliated Hospital of Kunming Medical College, Kunming, Yunnan Province, China
| | - Chunling Chen
- Department of Thoracic Surgery, Hangzhou First People's Hospital, Hangzhou, Zhejiang Province, China Institute of Medical Physics and Engineering, Tsinghua University, Beijing, China Department of Biochemistry and Molecular Biology, China-Japan Friendship Institute of Clinical Medical Sciences, Beijing, China Department of Thoracic Surgery, First Affiliated Hospital of Kunming Medical College, Kunming, Yunnan Province, China
| | - Jintian Tang
- Department of Thoracic Surgery, Hangzhou First People's Hospital, Hangzhou, Zhejiang Province, China Institute of Medical Physics and Engineering, Tsinghua University, Beijing, China Department of Biochemistry and Molecular Biology, China-Japan Friendship Institute of Clinical Medical Sciences, Beijing, China Department of Thoracic Surgery, First Affiliated Hospital of Kunming Medical College, Kunming, Yunnan Province, China
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Ghahremani FH, Sazgarnia A, Bahreyni-Toosi MH, Rajabi O, Aledavood A. Efficacy of microwave hyperthermia and chemotherapy in the presence of gold nanoparticles: An in vitro study on osteosarcoma. Int J Hyperthermia 2011; 27:625-36. [DOI: 10.3109/02656736.2011.587363] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Cornelis F, Grenier N, Moonen CT, Quesson B. In vivo characterization of tissue thermal properties of the kidney during local hyperthermia induced by MR-guided high-intensity focused ultrasound. NMR IN BIOMEDICINE 2011; 24:799-806. [PMID: 21834004 DOI: 10.1002/nbm.1624] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2010] [Revised: 08/17/2010] [Accepted: 09/09/2010] [Indexed: 05/31/2023]
Abstract
The purpose of this study was to evaluate quantitatively in vivo the tissue thermal properties during high-intensity focused ultrasound (HIFU) heating. For this purpose, a total of 52 localized sonications were performed in the kidneys of six pigs with HIFU monitored in real time by volumetric MR thermometry. The kidney perfusion was modified by modulation of the flow in the aorta by insertion of an inflatable angioplasty balloon. The resulting temperature data were analyzed using the bio-heat transfer model in order to validate the model under in vivo conditions and to estimate quantitatively the absorption (α), thermal diffusivity (D) and perfusion (w(b)) of renal tissue. An excellent correspondence was observed between the bio-heat transfer model and the experimental data. The absorption and thermal diffusivity were independent of the flow, with mean values (± standard deviation) of 20.7 ± 5.1 mm(3) K J(-1) and 0.23 ± 0.11 mm(2) s(-1), respectively, whereas the perfusion decreased significantly by 84% (p < 0.01) with arterial flow (mean values of w(b) of 0.06 ± 0.02 and 0.008 ± 0.007 mL(-1) mL s(-1)), as predicted by the model. The quantitative analysis of the volumetric temperature distribution during nondestructive HIFU sonication allows the determination of the thermal parameters, and may therefore improve the quality of the planning of noninvasive therapy with MR-guided HIFU.
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Affiliation(s)
- François Cornelis
- Laboratory for Molecular and Functional Imaging, CNRS/Université Bordeaux 2, Bordeaux, France
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Gormley AJ, Greish K, Ray A, Robinson R, Gustafson JA, Ghandehari H. Gold nanorod mediated plasmonic photothermal therapy: a tool to enhance macromolecular delivery. Int J Pharm 2011; 415:315-8. [PMID: 21669265 DOI: 10.1016/j.ijpharm.2011.05.068] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2011] [Revised: 05/17/2011] [Accepted: 05/26/2011] [Indexed: 11/19/2022]
Abstract
Plasmonic photothermal therapy (PPTT) with gold nanostructures has been used to generate significant heat within tumors to ablate vasculature. Here we report the use of gold nanorod (GNR) mediated PPTT to induce moderate hyperthermia as a tool to enhance the delivery of macromolecules. GNRs were injected intravenously in a mouse sarcoma (S-180) tumor model. After 24h Evans blue dye (EBD) was injected and the right tumor was radiated with a laser diode for 10 min. EBD content in the right and left tumors were extracted in formamide, measured spectrophotometrically and expressed as a thermal enhancement ratio (TER). Enhanced delivery of EBD was observed (up to 1.8-fold) when tumor temperatures reached 43°C or 46°C. No statistical difference was observed between tumors at these two temperatures, though significant hemorrhage was observed in tumors and surrounding areas receiving the higher thermal dose (46°C). These results indicate that tumor directed PPTT may be used to induce moderate hyperthermia and therefore selectively increase the delivery of macromolecules with therapeutic anticancer drugs.
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Affiliation(s)
- Adam J Gormley
- Department of Bioengineering, University of Utah, Salt Lake City, UT 84108, USA
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Bathaie SZ, Jafarnejad A, Hosseinkhani S, Nakhjavani M. The effect of hot-tub therapy on serum Hsp70 level and its benefit on diabetic rats: a preliminary report. Int J Hyperthermia 2011; 26:577-85. [PMID: 20707652 DOI: 10.3109/02656736.2010.485594] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
PURPOSE To carry out a preliminary study examining the efficacy of long-term hot-tub therapy (HTT) in the improvement of diabetic complications on streptozotocin-induced diabetic rats. MATERIALS AND METHODS Male Wistar rats were immersed mid-sternum in a circulating water bath (42 degrees C for 30 min) to obtain a core body temperature of 41 degrees C; this process was repeated three times a week for 5 months. The blood was collected every month. Multiple parameters were examined for all rats including heat shock protein (Hsp70) level, serum glucose and insulin concentrations, advanced glycation end product (AGE) and glycated haemoglobin (HbA1c) formation, lipid profile and antioxidant defence system. Additionally, the chaperoning capacity of glycated Hsp70 was evaluated based on in vitro studies in which the refolding of denatured luciferase was compared to refolding by native Hsp70. RESULTS HTT-treated diabetic rats showed a significant improvement in lipid profile, antioxidant capacity, insulin secretion and serum Hsp70 level and a significant decrease in AGE formation compared to the untreated diabetic rats. However, HTT had a borderline significant effect on weight and fasting blood glucose. Glycated Hsp70 lost its chaperoning ability to reactivate the denatured luciferase. CONCLUSION A decrease in complications in diabetic rats after hot-tub therapy is shown here. An increase in the extracellular Hsp70 level due to HTT was observed. This increase may serve to protect the structure of proteins (e.g. preventing AGE formation), and the observed beneficial effects may be related to it.
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Affiliation(s)
- S Zahra Bathaie
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
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Grabellus F, Podleska LE, Bjerlestam S, Sheu SY, Lendemans S, Schmid KW, Taeger G. Increased shedding of soluble TNF-receptor 1 during hyperthermic TNF-α-based isolated limb perfusion. Int J Hyperthermia 2010; 27:33-41. [DOI: 10.3109/02656736.2010.508067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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48
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Vaupel PW, Kelleher DK. Pathophysiological and vascular characteristics of tumours and their importance for hyperthermia: heterogeneity is the key issue. Int J Hyperthermia 2010; 26:211-23. [PMID: 20345270 DOI: 10.3109/02656731003596259] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Tumour blood flow before and during clinically relevant mild hyperthermia exhibits pronounced heterogeneity. Flow changes upon heating are not predictable and are both spatially and temporally highly variable. Flow increases may result in improved heat dissipation to the extent that therapeutically relevant tissue temperatures may not be achieved. This holds especially true for tumours or tumour regions in which flow rates are substantially higher than in the surrounding normal tissues. Changes in tumour oxygenation tend to reflect alterations in blood flow upon hyperthermia. An initial improvement in the oxygenation status, followed by a return to baseline levels (or even a drop to below baseline at high thermal doses) has been reported for some tumours, whereas a predictable and universal occurrence of sustained increases in O(2) tensions upon mild hyperthermia is questionable and still needs to be verified in the clinical setting. Clarification of the pathogenetic mechanisms behind possible sustained increases is mandatory. High-dose hyperthermia leads to a decrease in the extracellular and intracellular pH and a deterioration of the energy status, both of which are known to be parameters capable of acting as direct sensitisers and thus pivotal factors in hyperthermia treatment. The role of the tumour microcirculatory function, hypoxia, acidosis and energy status is complex and is further complicated by a pronounced heterogeneity. These latter aspects require additional critical evaluation in clinically relevant tumour models in order for their impact on the response to heat to be clarified.
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Affiliation(s)
- Peter W Vaupel
- Department of Radiotherapy and Radiooncology, Klinikum rechts der Isar, Technical University, Munich, Germany
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Hokland SL, Nielsen T, Busk M, Horsman MR. Imaging tumour physiology and vasculature to predict and assess response to heat. Int J Hyperthermia 2010; 26:264-72. [PMID: 20388023 DOI: 10.3109/02656730903585982] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The vascular supply of tumours and the tumour microenvironment both play an important role when tumours are treated with hyperthermia. Blood flow is one of the major vehicles by which heat is dissipated thus the vascular supply will influence the ability to heat the tumour. It also influences the type of microenvironment that exists within tumours, and it is now well-established that cells existing in areas of oxygen deficiency, nutrient deprivation and acidic conditions are more sensitive to the effect of hyperthermia. The vascular supply and microenvironment are also affected by hyperthermia. In general, mild heat temperatures transiently improve blood flow and oxygenation, while higher hyperthermia temperatures cause vascular collapse and so increase the adverse microenvironmental conditions. Being able to image these vascular and microenvironmental parameters both before and after heating will help in our ability to predict and assess response. Here we review the various techniques that can be applied to supply this information, especially using non-invasive imaging approaches.
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Affiliation(s)
- Steffen L Hokland
- Department of Experimental Clinical Oncology, Aarhus University Hospital NBG, Aarhus, Denmark
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50
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Vaupel P, Horsman MR. Tumour perfusion and associated physiology: Characterization and significance for hyperthermia. Int J Hyperthermia 2010; 26:209-10. [DOI: 10.3109/02656731003636436] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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