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El-Sheekh MM, AlKafaas SS, Rady HA, Abdelmoaty BE, Bedair HM, Ahmed AA, El-Saadony MT, AbuQamar SF, El-Tarabily KA. How Synthesis of Algal Nanoparticles Affects Cancer Therapy? - A Complete Review of the Literature. Int J Nanomedicine 2023; 18:6601-6638. [PMID: 38026521 PMCID: PMC10644851 DOI: 10.2147/ijn.s423171] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 09/22/2023] [Indexed: 12/01/2023] Open
Abstract
The necessity to engineer sustainable nanomaterials for the environment and human health has recently increased. Due to their abundance, fast growth, easy cultivation, biocompatibility and richness of secondary metabolites, algae are valuable biological source for the green synthesis of nanoparticles (NPs). The aim of this review is to demonstrate the feasibility of using algal-based NPs for cancer treatment. Blue-green, brown, red and green micro- and macro-algae are the most commonly participating algae in the green synthesis of NPs. In this process, many algal bioactive compounds, such as proteins, carbohydrates, lipids, alkaloids, flavonoids and phenols, can catalyze the reduction of metal ions to NPs. In addition, many driving factors, including pH, temperature, duration, static conditions and substrate concentration, are involved to facilitate the green synthesis of algal-based NPs. Here, the biosynthesis, mechanisms and applications of algal-synthesized NPs in cancer therapy have been critically discussed. We also reviewed the effective role of algal synthesized NPs as anticancer treatment against human breast, colon and lung cancers and carcinoma.
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Affiliation(s)
- Mostafa M El-Sheekh
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Samar Sami AlKafaas
- Molecular Cell Biology Unit, Division of Biochemistry, Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Hadeer A Rady
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Bassant E Abdelmoaty
- Molecular Cell Biology Unit, Division of Biochemistry, Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Heba M Bedair
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Abdelhamid A Ahmed
- Plastic Surgery Department, Faculty of Medicine, Tanta University, Tanta, 31527, Egypt
| | - Mohamed T El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Synan F AbuQamar
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, 15551, United Arab Emirates
| | - Khaled A El-Tarabily
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, 15551, United Arab Emirates
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Lescot T, Lebel-Cormier MA, Seniwal B, Gros-Louis P, Bellerive C, Landreville S, Beaulieu L, Fortin MA. Tumor Shape-Specific Brachytherapy Implants by 3D-Printing, Precision Radioactivity Painting, and Biomedical Imaging. Adv Healthc Mater 2023; 12:e2300528. [PMID: 37536742 DOI: 10.1002/adhm.202300528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 07/18/2023] [Indexed: 08/05/2023]
Abstract
In brachytherapy (BT), or internal radiation therapy, cancer is treated by radioactive implants. For instance, episcleral plaques (EPs) for the treatment of uveal melanoma, are designed according to generic population approximations. However, more personalized implants can enhance treatment precision through better adjustment of dose profiles to the contours of cancerous tissues. An original approach integrating biomedical imaging, 3D printing, radioactivity painting, and biomedical imaging, is developed as a workflow for the development of tumor shape-specific BT implants. First, computer-aided design plans of EP are prepared according to guidelines prescribed by the Collaborative Ocular Melanoma Study protocol. Polyetheretherketone (PEEK), a high-performance polymer suitable for permanent implants, is used to 3D-print plaques and the geometrical accuracy of the printed design is evaluated by imaging. The possibility to modulate the dose distribution in a tridimensional manner is demonstrated by painting the inner surfaces of the EPs with radioactive 103Pd, followed by dose profile measurements. The possibility to modulate dose distributions generated by these 3D-printed plaques through radioactivity painting is therefore confirmed. Ex vivo surgical tests on human eyeballs are performed as an assessment of manipulation ease. Overall, this work provides a solution for the fabrication of tumor-specific radioactive implants requiring higher dose precision.
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Affiliation(s)
- Théophraste Lescot
- Département de Génie des Mines, de la Métallurgie et des Matériaux and Centre de recherche sur les matériaux avancés (CERMA), Université Laval, Québec, G1V 0A6, Canada
- Axe Médecine Régénératrice, Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, G1V 4G2, Canada
- Centre de Recherche sur le Cancer (CRC) de l'Université Laval, Québec, G1R 3S3, Canada
| | - Marie-Anne Lebel-Cormier
- Centre de Recherche sur le Cancer (CRC) de l'Université Laval, Québec, G1R 3S3, Canada
- Département de Physique, de Génie Physique et d'Optique, Université Laval, Québec, G1V 0A6, Canada
- Service de physique médicale et radioprotection and Axe Oncologie, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Québec, G1L 3L5, Canada
| | - Baljeet Seniwal
- Département de Génie des Mines, de la Métallurgie et des Matériaux and Centre de recherche sur les matériaux avancés (CERMA), Université Laval, Québec, G1V 0A6, Canada
- Axe Médecine Régénératrice, Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, G1V 4G2, Canada
- Centre de Recherche sur le Cancer (CRC) de l'Université Laval, Québec, G1R 3S3, Canada
| | - Philippe Gros-Louis
- Axe Médecine Régénératrice, Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, G1V 4G2, Canada
- Centre de Recherche sur le Cancer (CRC) de l'Université Laval, Québec, G1R 3S3, Canada
- Centre Universitaire d'Ophtalmologie (CUO) and Centre de Recherche du CHU de Québec-Université Laval, Hôpital du Saint-Sacrement, Québec, G1S 4L8, Canada
| | - Claudine Bellerive
- Axe Médecine Régénératrice, Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, G1V 4G2, Canada
- Centre Universitaire d'Ophtalmologie (CUO) and Centre de Recherche du CHU de Québec-Université Laval, Hôpital du Saint-Sacrement, Québec, G1S 4L8, Canada
| | - Solange Landreville
- Axe Médecine Régénératrice, Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, G1V 4G2, Canada
- Centre de Recherche sur le Cancer (CRC) de l'Université Laval, Québec, G1R 3S3, Canada
- Centre Universitaire d'Ophtalmologie (CUO) and Centre de Recherche du CHU de Québec-Université Laval, Hôpital du Saint-Sacrement, Québec, G1S 4L8, Canada
| | - Luc Beaulieu
- Centre de Recherche sur le Cancer (CRC) de l'Université Laval, Québec, G1R 3S3, Canada
- Département de Physique, de Génie Physique et d'Optique, Université Laval, Québec, G1V 0A6, Canada
- Service de physique médicale et radioprotection and Axe Oncologie, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Québec, G1L 3L5, Canada
| | - Marc-André Fortin
- Département de Génie des Mines, de la Métallurgie et des Matériaux and Centre de recherche sur les matériaux avancés (CERMA), Université Laval, Québec, G1V 0A6, Canada
- Axe Médecine Régénératrice, Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, G1V 4G2, Canada
- Centre de Recherche sur le Cancer (CRC) de l'Université Laval, Québec, G1R 3S3, Canada
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Hashemi S, Aghamiri SMR, Siavashpour Z, Kahani M, Zaidi H, Jaberi R. Hydrogen nanobubbles: A novel approach toward radio-sensitization agents. Med Phys 2023; 50:6589-6599. [PMID: 37278345 DOI: 10.1002/mp.16521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 04/23/2023] [Accepted: 04/28/2023] [Indexed: 06/07/2023] Open
Abstract
BACKGROUND Ocular melanoma is a rare kind of eye malignancy that threatens the patient's eyesight. Radiotherapy and surgical removal are the most commonly used therapeutic modalities, and nanomedicine has lately entered this field. Brachytherapy using Ruthenium-106 (106 Ru) ophthalmic plaques has been used for decades to treat ocular melanoma, with the applicator placed on the patient's eyes until the prescribed dose reaches the tumor apex. PURPOSE To investigate the efficiency of hydrogen nanobubbles (H2 -NBs) employment during intraocular melanoma brachytherapy using a 106 Ru electron emitter plaque. METHODS The Monte Carlo (MC) simulation and experimental investigation using a 3D-designed phantom and thermoluminescence dosimetry (TLD) were employed. Various concentrations of H2 -NBs with a diameter of 100 nm were simulated inside tumor tissue. The results were presented as deposited energy and dose enhancement factor (DEF). An equivalent Resin phantom of the human eyeball was made using AutoCAD and 3D-Printer technologies. The glass-bead TLDs dosimeter were employed and placed inside the phantom. RESULTS Using a 1% concentration of H2 -NBs, a DEF of 93% and 98% were achieved at the tumor apex of 10 mm from the experimental setup and MC simulation, respectively. For simulated concentrations of 0.1%, 0.3%, 0.5%, 1%, and 4% H2 -NBs, a maximum dose enhancement of 154%, 174%, 188%, 200%, and 300% were achieved, respectively, and a dose reduction was seen at about 3 mm from the plaque surface. CONCLUSION H2 -NBs can be used as an absorbed dose enhancer in 106 Ru eye brachytherapy because of their unique physical characteristics. Reducing plaque implantation time on the patient's eye, reducing sclera absorbed dose, and decreasing the risk of patients' healthy organs irradiation are reported as some of the potential benefits of using H2-NBs.
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Affiliation(s)
- Samaneh Hashemi
- Medical Radiation Department, Shahid Beheshti University, Tehran, Iran
| | | | - Zahra Siavashpour
- Radiotherapy Oncology Department, Shohada Tajrish Educational Hospital, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Mahdi Kahani
- Medical Radiation Department, Shahid Beheshti University, Tehran, Iran
| | - Habib Zaidi
- Geneva University Neurocenter, Geneva University, Geneva, Switzerland
| | - Ramin Jaberi
- Cancer Institute, Tehran University of Medical Science, Tehran, Iran
- Medical Physics Department, Surrey University, Guildford, UK
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Dheyab MA, Aziz AA, Rahman AA, Ashour NI, Musa AS, Braim FS, Jameel MS. Monte Carlo simulation of gold nanoparticles for X-ray enhancement application. Biochim Biophys Acta Gen Subj 2023; 1867:130318. [PMID: 36740000 DOI: 10.1016/j.bbagen.2023.130318] [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: 11/26/2022] [Revised: 01/27/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023]
Abstract
BACKGROUND Gold nanoparticles (Au NPs) are regarded as potential agents that enhance the radiosensitivity of tumor cells for theranostic applications. To elucidate the biological mechanisms of radiation dose enhancement effects of Au NPs as well as DNA damage attributable to the inclusion of Au NPs, Monte Carlo (MC) simulations have been deployed in a number of studies. SCOPE OF REVIEW This review paper concisely collates and reviews the information reported in the simulation research in terms of MC simulation of radiosensitization and dose enhancement effects caused by the inclusion of Au NPs in tumor cells, simulation mechanisms, benefits and limitations. MAJOR CONCLUSIONS In this review, we first explore the recent advances in MC simulation on Au NPs radiosensitization. The MC methods, physical dose enhancement and enhanced chemical and biological effects is discussed, followed by some results regarding the prediction of dose enhancement. We then review Multi-scale MC simulations of Au NP-induced DNA damages for X-ray irradiation. Moreover, we explain and look at Multi-scale MC simulations of Au NP-induced DNA damages for X-ray irradiation. GENERAL SIGNIFICANCE Using advanced chemical module-implemented MC simulations, there is a need to assess the radiation-induced chemical radicals that contribute to the dose-enhancing and biological effects of multiple Au NPs.
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Affiliation(s)
- Mohammed Ali Dheyab
- School of Physics, Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia; Nano-Biotechnology Research and Innovation (NanoBRI), Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia.
| | - Azlan Abdul Aziz
- School of Physics, Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia; Nano-Biotechnology Research and Innovation (NanoBRI), Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia.
| | - Azhar Abdul Rahman
- School of Physics, Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia
| | | | - Ahmed Sadeq Musa
- School of Physics, Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia
| | - Farhank Saber Braim
- School of Physics, Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia; Nano-Biotechnology Research and Innovation (NanoBRI), Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia
| | - Mahmood S Jameel
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Minden 11800, Malaysia
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Vukadinović A, Milanović Z, Ognjanović M, Janković D, Radović M, Mirković M, Karageorgou MA, Bouziotis P, Erić S, Vranješ-Đurić S, Antić B, Prijović Ž. 90Y-CA/SPIONs for dual magnetic hyperthermia-radionuclide nanobrachytherapy of solid tumours. NANOTECHNOLOGY 2022; 33:405102. [PMID: 35728572 DOI: 10.1088/1361-6528/ac7ac0] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
Radiolabelled superparamagnetic iron oxide nanoparticles (SPIONs) are a promising nanomaterial for the development of dual radiation/hyperthermia cancer therapy. To that purpose, flower-shaped SPIONs with an exceptional heating capability were synthesised and coated with citrate, dextran or (3-aminopropyl)triethoxysilane. Both non-coated and coated SPIONs were nontoxic to CT-26 mouse colon cancer cells up to 1.0 mg ml-1in vitro. In an oscillating magnetic field, citrate-coated SPIONs (CA/SPIONs) displayed the highest heating rate (SAR ∼ 253 W g-1) and the strongest hyperthermia effects against CT-26 cells. Labelling of the CA/SPIONs by the90Y radionuclide, emitting β-radiation with an average/maximum energy of 0.94/2.23 MeV, and deep tissue penetration generated90Y-CA/SPIONs intended for the therapy of solid tumours. However, intravenous injection of90Y-CA/SPIONs in CT-26 xenograft-bearing mice resulted in low tumour accumulation. On the contrary, intratumoural injection resulted in long-term retention at the injection site. A single intratumoural injection of 0.25 mg CA/SPIONs followed by 30-min courses of magnetic hyperthermia for four consecutive days caused a moderate antitumour effect against CT-26 and 4T1 mouse tumour xenografts. Intratumoural application of 1.85 MBq/0.25 mg90Y-CA/SPIONs, alone or combined with hyperthermia, caused a significant (P ≤ 0.01) antitumour effect without signs of systemic toxicity. The results confirm the suitability of90Y-CA/SPIONs for monotherapy or dual magnetic hyperthermia-radionuclide nanobrachytherapy (NBT) of solid tumours.
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Affiliation(s)
- Aleksandar Vukadinović
- Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
| | - Zorana Milanović
- Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
| | - Miloš Ognjanović
- Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
| | - Drina Janković
- Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
| | - Magdalena Radović
- Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
| | - Marija Mirković
- Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
| | - Maria-Argyro Karageorgou
- Department of Physics, National and Kapodistrian University of Athens, Zografou Panepistimioupolis, GR-15784 Athens, Greece
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research 'Demokritos', Aghia Paraskevi, 15341 Athens, Greece
| | - Penelope Bouziotis
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research 'Demokritos', Aghia Paraskevi, 15341 Athens, Greece
| | - Slavica Erić
- Faculty of Pharmacy, University of Belgrade, 11001 Belgrade, Serbia
| | - Sanja Vranješ-Đurić
- Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
| | - Bratislav Antić
- Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
| | - Željko Prijović
- Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
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Kamrani S, Aghamiri SMR, Hashemi S. Dose characteristics of Au-198 eye brachytherapy applicator: A Monte Carlo study. Appl Radiat Isot 2021; 176:109866. [PMID: 34293507 DOI: 10.1016/j.apradiso.2021.109866] [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: 01/18/2021] [Revised: 07/09/2021] [Accepted: 07/13/2021] [Indexed: 11/28/2022]
Abstract
PURPOSE The use of ocular plaques is a promising treatment option for eye melanoma brachytherapy. Although several studies have been done on various ocular plaques, little is known about the dose characterization of 198Au plaque. MATERIALS AND METHOD The full mathematical model of the eye phantom, tumor, 106Ru/106Rh CCA, and 198Au plaque were simulated using the Monte Carlo MCNPX code. The dose distribution was measured in the plaque's central axis direction, and a dose profile was also measured at a distance of 2.5 mm from the plaque surface. RESULTS The findings showed that 198Au plaque has superior dosimetric characteristics than CCA plaque for tumors with a thickness of greater than 3.5 mm, while CCA plaque is better for tumors with a thickness of less than 3.5 mm. The dose to the sclera and choroid is higher in the case of CCA plaque, while the dose to the organs at risk (lens and optic nerve) is greater in the case of 198Au applicator. In the case of 198Au plaque, however, the dose to sensitive organs was within their permissible dose range. CONCLUSION In the treatment of medium and large tumors, 198Au plaque is more successful than CCA plaque. It can produce a much more homogeneous lateral dose profile in the target. In the treatment of dome-shaped tumors, 198Au plaque may be more successful than CCA plaque. As a result, the tumor's shape influences the plaque type selection.
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Affiliation(s)
- Samira Kamrani
- Medical Radiation Department, Shahid Beheshti University, Tehran, Iran
| | | | - Samaneh Hashemi
- Medical Radiation Department, Shahid Beheshti University, Tehran, Iran
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Tremi I, Spyratou E, Souli M, Efstathopoulos EP, Makropoulou M, Georgakilas AG, Sihver L. Requirements for Designing an Effective Metallic Nanoparticle (NP)-Boosted Radiation Therapy (RT). Cancers (Basel) 2021; 13:cancers13133185. [PMID: 34202342 PMCID: PMC8269428 DOI: 10.3390/cancers13133185] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 06/23/2021] [Accepted: 06/24/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Recent advances in nanotechnology gave rise to trials with various types of metallic nanoparticles (NPs) to enhance the radiosensitization of cancer cells while reducing or maintaining the normal tissue complication probability during radiation therapy. This work reviews the physical and chemical mechanisms leading to the enhancement of ionizing radiation’s detrimental effects on cells and tissues, as well as the plethora of experimental procedures to study these effects of the so-called “NPs’ radiosensitization”. The paper presents the need to a better understanding of all the phases of actions before applying metallic-based NPs in clinical practice to improve the effect of IR therapy. More physical and biological experiments especially in vivo must be performed and simulation Monte Carlo or mathematical codes based on more accurate models for all phases must be developed. Abstract Many different tumor-targeted strategies are under development worldwide to limit the side effects and improve the effectiveness of cancer therapies. One promising method is to enhance the radiosensitization of the cancer cells while reducing or maintaining the normal tissue complication probability during radiation therapy using metallic nanoparticles (NPs). Radiotherapy with MV photons is more commonly available and applied in cancer clinics than high LET particle radiotherapy, so the addition of high-Z NPs has the potential to further increase the efficacy of photon radiotherapy in terms of NP radiosensitization. Generally, when using X-rays, mainly the inner electron shells are ionized, which creates cascades of both low and high energy Auger electrons. When using high LET particles, mainly the outer shells are ionized, which give electrons with lower energies than when using X-rays. The amount of the produced low energy electrons is higher when exposing NPs to heavy charged particles than when exposing them to X-rays. Since ions traverse the material along tracks, and therefore give rise to a much more inhomogeneous dose distributions than X-rays, there might be a need to introduce a higher number of NPs when using ions compared to when using X-rays to create enough primary and secondary electrons to get the desired dose escalations. This raises the questions of toxicity. This paper provides a review of the fundamental processes controlling the outcome of metallic NP-boosted photon beam and ion beam radiation therapy and presents some experimental procedures to study the biological effects of NPs’ radiosensitization. The overview shows the need for more systematic studies of the behavior of NPs when exposed to different kinds of ionizing radiation before applying metallic-based NPs in clinical practice to improve the effect of IR therapy.
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Affiliation(s)
- Ioanna Tremi
- DNA Damage Laboratory, Department of Physics, School of Applied Mathematical and Physical Sciences, Zografou Campus, National Technical University of Athens (NTUA), 15780 Athens, Greece; (I.T.); (M.S.); (M.M.)
| | - Ellas Spyratou
- 2nd Department of Radiology, Medical School, National and Kapodistrian University of Athens, 11517 Athens, Greece; (E.S.); (E.P.E.)
| | - Maria Souli
- DNA Damage Laboratory, Department of Physics, School of Applied Mathematical and Physical Sciences, Zografou Campus, National Technical University of Athens (NTUA), 15780 Athens, Greece; (I.T.); (M.S.); (M.M.)
- Atominstitut, Technische Universität Wien, Stadionallee 2, 1020 Vienna, Austria
| | - Efstathios P. Efstathopoulos
- 2nd Department of Radiology, Medical School, National and Kapodistrian University of Athens, 11517 Athens, Greece; (E.S.); (E.P.E.)
| | - Mersini Makropoulou
- DNA Damage Laboratory, Department of Physics, School of Applied Mathematical and Physical Sciences, Zografou Campus, National Technical University of Athens (NTUA), 15780 Athens, Greece; (I.T.); (M.S.); (M.M.)
| | - Alexandros G. Georgakilas
- DNA Damage Laboratory, Department of Physics, School of Applied Mathematical and Physical Sciences, Zografou Campus, National Technical University of Athens (NTUA), 15780 Athens, Greece; (I.T.); (M.S.); (M.M.)
- Correspondence: (A.G.G.); (L.S.)
| | - Lembit Sihver
- Atominstitut, Technische Universität Wien, Stadionallee 2, 1020 Vienna, Austria
- Department of Physics, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
- Correspondence: (A.G.G.); (L.S.)
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An in silico study on the effect of host tissue at brachytherapy dose enhancement by gold nanoparticles. Brachytherapy 2020; 20:420-425. [PMID: 33317965 DOI: 10.1016/j.brachy.2020.10.014] [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: 05/15/2020] [Revised: 09/14/2020] [Accepted: 10/17/2020] [Indexed: 11/20/2022]
Abstract
PURPOSE Iridium-192 brachytherapy dose enhancement by gold nanoparticles was investigated in five different tumor tissues to observe the tissue-related differences as an effective environmental factor in the applications of nanoparticles as radio-enhancer agents. METHODS AND MATERIALS The brachytherapy high-dose-rate source of BEBIG Ir-192, a tumor volume with five different tissues including water, Plexiglas, soft tissue, adipose, and bone with and without a uniform distribution of gold nanoparticles were mimicked by MCNPX Monte Carlo simulation code using lattice feature. Dose enhancement factors in the tumor volume were measured separately regarding the types of tissue, and a previous study using GEometry ANd Tracking 4 simulation was used for result validation. RESULTS The results demonstrated that various types of tissue, as the host of gold nanoparticles, lead to different dose enhancement level, so that the bone and adipose have the lowest and the highest amount of dose enhancement factor with values 20.8% and 39.75%, respectively. The maximum difference of 4.8% was achieved from data benchmarking. CONCLUSIONS The results of this study indicate that the MCNPX code can be used as a valid tool for dose measurement in the presence of nanoparticles. Moreover, tissue types of tumor as an environmental feature, alongside with the nanoparticle's size and concentration as well as the conditions of radiotherapy, should be considered in the dose calculation.
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Gray T, Bassiri N, David S, Patel DY, Stathakis S, Kirby N, Mayer KM. A detailed Monte Carlo evaluation of 192Ir dose enhancement for gold nanoparticles and comparison with experimentally measured dose enhancements. Phys Med Biol 2020; 65:135007. [PMID: 32434159 DOI: 10.1088/1361-6560/ab9502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Gold nanoparticles (GNPs) have been studied extensively as promising radiation dose enhancing agents. In the current study, the dose enhancement effect of GNPs for Ir-192 HDR brachytherapy is studied using Monte Carlo N-Particle code, version 6.2 (MCNP6.2) and compared with experimental results obtained using Burlin cavity theory formalism. The Ir-192 source is verified using TG-43 parameters and dose enhancement factors (DEFs) from GNPs are simulated for three different mass percentages of gold in the GNP solution. These results are compared to DEFs previously reported experimentally by our group (Bassiri et al 2019 Med. Phys.) for a GNP-containing volume in an apparatus designed in-house to measure dose enhancement with GNPs for high dose rate (HDR) Ir-192 brachytherapy. An HDR Ir-192 Microselectron v2 r HDR brachytherapy source was modeled using MCNP6.2 using the TG-43 formalism in water. Anisotropy and radial dose function were verified against known values. An apparatus designed to measure dose enhancement to a 0.75 cm3 volume of GNPs from an Ir-192 brachytherapy seed with average energy of 0.38 MeV was built in-house and modeled using MCNP6.2. Burlin cavity correction factors were applied to experimental measurements. The macroscopic DEF was calculated for GNPs of size 30 nm at mass percentages of gold of 0.28%, 0.56% and 0.77%, using the repeating structures capability of MCNP6.2. DEF was calculated by dividing dose to the GNP solution by dose to water in the same volume. The radial dose function and anisotropy factor values at varying angles and distances were accurate when compared against known values. DEFs of 1.018 ± 0.003, 1.031 ± 0.003, and 1.041 ± 0.003 for GNP solutions containing mass percent of gold of 0.28%, 0.56% and 0.77%, respectively, were computed. These DEFs were within 2% of experimental values with Burlin cavity correction factors applied for all three mass percentages of gold.
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Affiliation(s)
- Tara Gray
- The University of Texas at San Antonio, Department of Physics and Astronomy, San Antonio, TX 78249, United States of America
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