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Obrador E, Salvador R, Villaescusa JI, Soriano JM, Estrela JM, Montoro A. Radioprotection and Radiomitigation: From the Bench to Clinical Practice. Biomedicines 2020; 8:E461. [PMID: 33142986 PMCID: PMC7692399 DOI: 10.3390/biomedicines8110461] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 10/27/2020] [Accepted: 10/29/2020] [Indexed: 02/07/2023] Open
Abstract
The development of protective agents against harmful radiations has been a subject of investigation for decades. However, effective (ideal) radioprotectors and radiomitigators remain an unsolved problem. Because ionizing radiation-induced cellular damage is primarily attributed to free radicals, radical scavengers are promising as potential radioprotectors. Early development of such agents focused on thiol synthetic compounds, e.g., amifostine (2-(3-aminopropylamino) ethylsulfanylphosphonic acid), approved as a radioprotector by the Food and Drug Administration (FDA, USA) but for limited clinical indications and not for nonclinical uses. To date, no new chemical entity has been approved by the FDA as a radiation countermeasure for acute radiation syndrome (ARS). All FDA-approved radiation countermeasures (filgrastim, a recombinant DNA form of the naturally occurring granulocyte colony-stimulating factor, G-CSF; pegfilgrastim, a PEGylated form of the recombinant human G-CSF; sargramostim, a recombinant granulocyte macrophage colony-stimulating factor, GM-CSF) are classified as radiomitigators. No radioprotector that can be administered prior to exposure has been approved for ARS. This differentiates radioprotectors (reduce direct damage caused by radiation) and radiomitigators (minimize toxicity even after radiation has been delivered). Molecules under development with the aim of reaching clinical practice and other nonclinical applications are discussed. Assays to evaluate the biological effects of ionizing radiations are also analyzed.
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Affiliation(s)
- Elena Obrador
- Department of Physiology, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain; (E.O.); (R.S.); (J.M.E.)
| | - Rosario Salvador
- Department of Physiology, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain; (E.O.); (R.S.); (J.M.E.)
| | - Juan I. Villaescusa
- Service of Radiological Protection, Clinical Area of Medical Image, La Fe University Hospital, 46026 Valencia, Spain;
- Biomedical Imaging Research Group GIBI230, Health Research Institute (IISLaFe), La Fe University Hospital, 46026 Valencia, Spain
| | - José M. Soriano
- Food & Health Lab, Institute of Materials Science, University of Valencia, 46980 Valencia, Spain;
- Joint Research Unit in Endocrinology, Nutrition and Clinical Dietetics, University of Valencia-Health Research Institute IISLaFe, 46026 Valencia, Spain
| | - José M. Estrela
- Department of Physiology, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain; (E.O.); (R.S.); (J.M.E.)
| | - Alegría Montoro
- Service of Radiological Protection, Clinical Area of Medical Image, La Fe University Hospital, 46026 Valencia, Spain;
- Biomedical Imaging Research Group GIBI230, Health Research Institute (IISLaFe), La Fe University Hospital, 46026 Valencia, Spain
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Farid A, Kamel D, Abdelwahab Montaser S, Mohamed Ahmed M, El Amir M, El Amir A. Synergetic role of senna and fennel extracts as antioxidant, anti-inflammatory and anti-mutagenic agents in irradiated human blood lymphocyte cultures. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2020. [DOI: 10.1080/16878507.2020.1723948] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Alyaa Farid
- Zoology Department, Faculty of Science, Cairo University, Giza, Egypt
| | - Dina Kamel
- Radiation Protection Department, Nuclear Power Plant Authority (NPPA), Nasr City, Cairo, Egypt
| | - Sherien Abdelwahab Montaser
- Radiation Biology Department, National Centre for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority, Nasr City, Cairo, Egypt
| | - Mahmoud Mohamed Ahmed
- Radiation Biology Department, National Centre for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority, Nasr City, Cairo, Egypt
| | - Mona El Amir
- Internal Medicine Department, Faculty of Medicine, Kasr Al-Ainy, Cairo University, Giza, Egypt
| | - Azza El Amir
- Zoology Department, Faculty of Science, Cairo University, Giza, Egypt
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Samarth RM, Samarth M, Matsumoto Y. Medicinally important aromatic plants with radioprotective activity. Future Sci OA 2017; 3:FSO247. [PMID: 29134131 PMCID: PMC5674267 DOI: 10.4155/fsoa-2017-0061] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 08/15/2017] [Indexed: 01/25/2023] Open
Abstract
Aromatic plants are often used as natural medicines because of their remedial and inherent pharmacological properties. Looking into natural resources, particularly products of plant origin, has become an exciting area of research in drug discovery and development. Aromatic plants are mainly exploited for essential oil extraction for applications in industries, for example, in cosmetics, flavoring and fragrance, spices, pesticides, repellents and herbal beverages. Although several medicinal plants have been studied to treat various conventional ailments only a handful studies are available on aromatic plants, especially for radioprotection. Many plant extracts have been reported to contain antioxidants that scavenge free radicals produced due to radiation exposure, thus imparting radioprotective efficacy. The present review focuses on a subset of medicinally important aromatic plants with radioprotective activity.
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Affiliation(s)
- Ravindra M Samarth
- Department of Research, Bhopal Memorial Hospital & Research Centre, Department of Health Research, Government of India, Raisen Bypass Road, Bhopal 462038, India
- ICMR-National Institute for Research in Environmental Health, Kamla Nehru Hospital Building, GMC Campus, Bhopal 462001, India
| | - Meenakshi Samarth
- Faculty of Science, RKDF University, Airport Bypass Road, Gandhi Nagar, Bhopal 462033, India
| | - Yoshihisa Matsumoto
- Tokyo Institute of Technology, Institute of Innovative Research, Laboratory for Advanced Nuclear Energy, N1–30 2–12–1 Ookayama, Meguro-ku, Tokyo 152–8550, Japan
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