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Ruprecht NA, Singhal S, Schaefer K, Panda O, Sens D, Singhal SK. A Review: Multi-Omics Approach to Studying the Association between Ionizing Radiation Effects on Biological Aging. BIOLOGY 2024; 13:98. [PMID: 38392316 PMCID: PMC10886797 DOI: 10.3390/biology13020098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/20/2024] [Accepted: 01/30/2024] [Indexed: 02/24/2024]
Abstract
Multi-omics studies have emerged as powerful tools for tailoring individualized responses to various conditions, capitalizing on genome sequencing technologies' increasing affordability and efficiency. This paper delves into the potential of multi-omics in deepening our understanding of biological age, examining the techniques available in light of evolving technology and computational models. The primary objective is to review the relationship between ionizing radiation and biological age, exploring a wide array of functional, physiological, and psychological parameters. This comprehensive review draws upon an extensive range of sources, including peer-reviewed journal articles, government documents, and reputable websites. The literature review spans from fundamental insights into radiation effects to the latest developments in aging research. Ionizing radiation exerts its influence through direct mechanisms, notably single- and double-strand DNA breaks and cross links, along with other critical cellular events. The cumulative impact of DNA damage forms the foundation for the intricate process of natural aging, intersecting with numerous diseases and pivotal biomarkers. Furthermore, there is a resurgence of interest in ionizing radiation research from various organizations and countries, reinvigorating its importance as a key contributor to the study of biological age. Biological age serves as a vital reference point for the monitoring and mitigation of the effects of various stressors, including ionizing radiation. Ionizing radiation emerges as a potent candidate for modeling the separation of biological age from chronological age, offering a promising avenue for tailoring protocols across diverse fields, including the rigorous demands of space exploration.
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Affiliation(s)
- Nathan A Ruprecht
- Department of Biomedical Engineering, University of North Dakota, Grand Forks, ND 58202, USA
| | - Sonalika Singhal
- Department of Pathology, University of North Dakota, Grand Forks, ND 58202, USA
| | - Kalli Schaefer
- Department of Biomedical Engineering, University of North Dakota, Grand Forks, ND 58202, USA
| | - Om Panda
- Department of Public Health, University of California Irvine, Irvine, CA 92697, USA
| | - Donald Sens
- Department of Pathology, University of North Dakota, Grand Forks, ND 58202, USA
| | - Sandeep K Singhal
- Department of Biomedical Engineering, University of North Dakota, Grand Forks, ND 58202, USA
- Department of Pathology, University of North Dakota, Grand Forks, ND 58202, USA
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2
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Makhijani K, Kumbhare LB, Nayak M, Kunwar A, Singh BG. Bis(1-methylimidazol-2-yl) diselenide and its evaluation as a chemical radio-protector: role of kinetic rate constants for ROS scavenging and glutathione peroxidase like activity. Free Radic Res 2024; 58:43-56. [PMID: 38165076 DOI: 10.1080/10715762.2023.2299341] [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: 08/22/2023] [Accepted: 11/29/2023] [Indexed: 01/03/2024]
Abstract
Bis(1-methylimidazol-2-yl) diselenide (MeImSe), a derivative of selenoneine, has been examined for bimolecular rate constants for scavenging of various radiolytically and non-radiolytically generated reactive oxygen species (ROS). Further, its potential to show glutathione peroxidase (GPx)-like activity and to protect in vitro models of DNA and lipid against radiation induced strand breakage and lipid peroxidation, respectively were studied. The results confirmed that MeImSe scavenged all major short-lived (hydroxyl radical) and long-lived (peroxyl radical, carbonate radical, nitrogen dioxide radical, hypochlorite and hydrogen peroxide) oxidants involved in the radiation toxicity either directly or through GPx-like catalytic mechanism. The rate constants of MeImSe for these oxidants were found to be comparable to analogous sulfur and selenium-based compounds. The enzyme kinetics study established that MeImSe took part in the GPx cycle through the reductive pathway. Further, MeImSe inhibited the radiation induced DNA strand cleavage and lipid peroxidation with half maximal inhibitory concentration (IC50) of ∼ 60 μM and ∼100 μM, respectively. Interestingly, MeImSe treatment in the above concentration range (>100 μM) did not show any significant toxicity in normal human lung fibroblast (WI26) cells. The balance between efficacy and toxicity of MeImSe as a chemical radioprotector was attributed to the formation of less reactive intermediates during its oxidation/reduction reactions as evidenced from NMR studies.HighlightsMeImSe, a derivative of selenoneine protects DNA and lipid from radiation damageMeImSe scavenges all major short- and long-lived oxidants involved in radiation toxicityRate constants of MeImSe for ROS scavenging determined by pulse radiolysis techniqueFirst organoselenium compound reported to scavenge nitrogen dioxide radicalMeImSe exhibits GPx-like activity through reductive pathway.
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Affiliation(s)
- K Makhijani
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India
| | - L B Kumbhare
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India
| | - M Nayak
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - A Kunwar
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - B G Singh
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
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Markov AG, Livanova AA, Fedorova AA, Kravtsova VV, Krivoi II. Chronic Ouabain Targets Pore-Forming Claudin-2 and Ameliorates Radiation-Induced Damage to the Rat Intestinal Tissue Barrier. Int J Mol Sci 2023; 25:278. [PMID: 38203449 PMCID: PMC10778734 DOI: 10.3390/ijms25010278] [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: 11/04/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
Ionizing radiation (IR) causes disturbances in the functions of the gastrointestinal tract. Given the therapeutic potential of ouabain, a specific ligand of the Na,K-ATPase, we tested its ability to protect against IR-induced disturbances in the barrier and transport properties of the jejunum and colon of rats. Male Wistar rats were subjected to 6-day intraperitoneal injections of vehicle or ouabain (1 µg/kg/day). On the fourth day of injections, rats were exposed to total-body X-ray irradiation (10 Gy) or a sham irradiation. Isolated tissues were examined 72 h post-irradiation. Electrophysiological characteristics and paracellular permeability for sodium fluorescein were measured in an Ussing chamber. Histological analysis and Western blotting were also performed. In the jejunum tissue, ouabain exposure did not prevent disturbances in transepithelial resistance, paracellular permeability, histological characteristics, as well as changes in the expression of claudin-1, -3, -4, tricellulin, and caspase-3 induced by IR. However, ouabain prevented overexpression of occludin and the pore-forming claudin-2. In the colon tissue, ouabain prevented electrophysiological disturbances and claudin-2 overexpression. These observations may reveal a mechanism by which circulating ouabain maintains tight junction integrity under IR-induced intestinal dysfunction.
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Affiliation(s)
- Alexander G. Markov
- Department of General Physiology, St. Petersburg State University, 199034 St. Petersburg, Russia; (A.A.L.); (A.A.F.); (V.V.K.); (I.I.K.)
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Abdelrahman AM, Mohammed AA, Badawy MMM, El Bassuony WI. Orange peels and Chlorella vulgaris supplementation ameliorate gamma radiation-induced oxidative stress by regulating TGF-β and NOX2/NOX4 signaling pathways. Cell Biochem Funct 2023; 41:1263-1274. [PMID: 37756035 DOI: 10.1002/cbf.3861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 08/26/2023] [Accepted: 09/14/2023] [Indexed: 09/28/2023]
Abstract
Numerous studies revealed that Chlorella vulgaris and orange peels are potential sources for many valuable compounds such as flavonoids, which are natural polyphenols with antioxidant capacities that lessen oxidative stress via suppressing ROS levels. Thus, this study was designed to investigate their radioprotective efficiency either alone or in combination as natural food supplements. Sixty-four male Albino rats were divided into eight groups (n = 8) as follows: control, orange peel (10% in diet), C. vulgaris (1% in diet), orange peel + C. vulgaris, gamma irradiated (2Gy twice per week up to 8Gy), orange peel + gamma irradiation, C. vulgaris + gamma irradiation, and orange peel + C. vulgaris + gamma irradiation. After the experiment, blood serums were collected for biochemical analysis, whole bloods were collected for blood picture, bone marrows were collected for GSH, MDA, TGF-β, NOX2 and NOX4, and liver tissues were collected for histopathological evaluation. Current study revealed that exposure to gamma irradiation induced a significant disturbance in liver function markers (ALT and AST), kidney function markers (urea and creatinine), cholesterol and triglycerides levels in serum. In addition, a significant decrease in WBCs, RBCs, PLT, and Hb in blood of irradiated rats. Moreover, a significant elevation in TGF-β, NOX2, NOX4 activities, and MDA level, while showed a marked decrease in GSH concentration. Furthermore, hepatic inflammation appeared in the histopathological examination. Orange peels or C. vulgaris treatments showed acceptable amelioration in all measured parameters, combination between orange peels and C. vulgaris showed statistically significant additive amelioration in radiation induced disturbance.
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Affiliation(s)
- Abour M Abdelrahman
- Home Economic Department, Faculty of Specific Education, Ain Shams University, Cairo, Egypt
| | - Asmaa A Mohammed
- Department of Medical and Radiological Research, Nuclear Materials Authority, Cairo, Egypt
| | - Monda M M Badawy
- Health Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
| | - Walaa I El Bassuony
- Medical and Radiological Department, Nuclear Materials Authority, Cairo, Egypt
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Cotino-Nájera S, Herrera LA, Domínguez-Gómez G, Díaz-Chávez J. Molecular mechanisms of resveratrol as chemo and radiosensitizer in cancer. Front Pharmacol 2023; 14:1287505. [PMID: 38026933 PMCID: PMC10667487 DOI: 10.3389/fphar.2023.1287505] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
One of the primary diseases that cause death worldwide is cancer. Cancer cells can be intrinsically resistant or acquire resistance to therapies and drugs used for cancer treatment through multiple mechanisms of action that favor cell survival and proliferation, becoming one of the leading causes of treatment failure against cancer. A promising strategy to overcome chemoresistance and radioresistance is the co-administration of anticancer agents and natural compounds with anticancer properties, such as the polyphenolic compound resveratrol (RSV). RSV has been reported to be able to sensitize cancer cells to chemotherapeutic agents and radiotherapy, promoting cancer cell death. This review describes the reported molecular mechanisms by which RSV sensitizes tumor cells to radiotherapy and chemotherapy treatment.
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Affiliation(s)
- Sandra Cotino-Nájera
- Laboratorio de Oncología Molecular, Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de México, Mexico
| | - Luis A. Herrera
- Laboratorio de Oncología Molecular, Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de México, Mexico
- Escuela de Medicina y Ciencias de la Salud-Tecnológico de Monterrey, México City, Mexico
| | - Guadalupe Domínguez-Gómez
- Subdirección de Investigación Clínica, Instituto Nacional de Cancerología (INCAN), Ciudad de México, Mexico
| | - José Díaz-Chávez
- Unidad de Investigación en Cáncer, Instituto de Investigaciones Biomédicas-Universidad Nacional Autónoma de México, Instituto Nacional de Cancerología, Ciudad de México, Mexico
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Akotkar L, Aswar U, Ganeshpurkar A, Raj R, Pawar A. An Overview of Chemistry, Kinetics, Toxicity and Therapeutic Potential of Boldine in Neurological Disorders. Neurochem Res 2023; 48:3283-3295. [PMID: 37462836 DOI: 10.1007/s11064-023-03992-y] [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: 04/28/2023] [Revised: 06/30/2023] [Accepted: 07/09/2023] [Indexed: 09/22/2023]
Abstract
Boldine is an alkaloid obtained from the medicinal herb Peumus boldus (Mol.) (Chilean boldo tree; boldo) and belongs to the family Monimiaceae. It exhibits a wide range of pharmacological effects such as antioxidant, anticancer, hepatoprotective, neuroprotective, and anti-diabetic properties. There is a dearth of information regarding its pharmacokinetics and toxicity in addition to its potential pharmacological activity. Boldine belongs to the aporphine alkaloid class and possesses lipophilic properties which enable its efficient absorption and distribution throughout the body, including the central nervous system. It exhibits potent free radical scavenging activity, thereby reducing oxidative stress and preventing neuronal damage. Through a variety of neuroprotective mechanisms, including suppression of AChE and BuChE activity, blocking of connexin-43 hemichannels, pannexin 1 channel, reduction of NF-κβ mediated interleukin release, and glutamate excitotoxicity which successfully reduces neuronal damage. These results point to its probable application in reducing neuroinflammation and oxidative stress in epilepsy, Alzheimer's disease (AD), and Parkinson's disease (PD). Moreover, its effects on serotonergic, dopaminergic, opioid, and cholinergic receptors were further investigated in order to determine its applicability for neurobehavioral dysfunctions. The article investigates the pharmacokinetics of boldine and reveals that it has a low oral bioavailability and a short half-life, requiring regular dosage to maintain therapeutic levels. The review studies boldine's potential therapeutic uses and mode of action while summarizing its neuroprotective benefits. Given the favorable results for boldine as a potential neurotherapeutic drug in laboratory animals, more research is required. However, in order to optimise its therapeutic potential, it must be more bioavailable with fewer detrimental side effects.
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Affiliation(s)
- Likhit Akotkar
- Department of Pharmacology, Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to be University), Erandwane, Pune, 411038, Maharashtra, India
| | - Urmila Aswar
- Department of Pharmacology, Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to be University), Erandwane, Pune, 411038, Maharashtra, India.
| | - Ankit Ganeshpurkar
- Department of Pharmaceutical Chemistry, Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to be University), Pune, 411038, India
| | - Ritik Raj
- Department of Pharmaceutical Biotechnology, Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to be University), Pune, 411038, India
| | - Atmaram Pawar
- Department of Pharmaceutics, Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to be University), Pune, 411038, India
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Zhang Y, Huang R, Jiang Y, Shen W, Pei H, Wang G, Pei P, Yang K. The role of bacteria and its derived biomaterials in cancer radiotherapy. Acta Pharm Sin B 2023; 13:4149-4171. [PMID: 37799393 PMCID: PMC10547917 DOI: 10.1016/j.apsb.2022.10.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/02/2022] [Accepted: 08/16/2022] [Indexed: 11/21/2022] Open
Abstract
Bacteria-mediated anti-tumor therapy has received widespread attention due to its natural tumor-targeting ability and specific immune-activation characteristics. It has made significant progress in breaking the limitations of monotherapy and effectively eradicating tumors, especially when combined with traditional therapy, such as radiotherapy. According to their different biological characteristics, bacteria and their derivatives can not only improve the sensitivity of tumor radiotherapy but also protect normal tissues. Moreover, genetically engineered bacteria and bacteria-based biomaterials have further expanded the scope of their applications in radiotherapy. In this review, we have summarized relevant researches on the application of bacteria and its derivatives in radiotherapy in recent years, expounding that the bacteria, bacterial derivatives and bacteria-based biomaterials can not only directly enhance radiotherapy but also improve the anti-tumor effect by improving the tumor microenvironment (TME) and immune effects. Furthermore, some probiotics can also protect normal tissues and organs such as intestines from radiation via anti-inflammatory, anti-oxidation and apoptosis inhibition. In conclusion, the prospect of bacteria in radiotherapy will be very extensive, but its biological safety and mechanism need to be further evaluated and studied.
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Affiliation(s)
- Yu Zhang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection & School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Ruizhe Huang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection & School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Yunchun Jiang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection & School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Wenhao Shen
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection & School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Hailong Pei
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection & School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Guanglin Wang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection & School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Pei Pei
- Teaching and Research Section of Nuclear Medicine, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Kai Yang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection & School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
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Abd El-Aziz GS, Alturkistani HA, Alshali RA, Halawani MM, Hamdy RM, Aggad WS, Kamal NJ, Hindi EA. The potential protectivity of honey and olive oil in methotrexate induced renal damage in rats. Toxicon 2023; 234:107268. [PMID: 37673343 DOI: 10.1016/j.toxicon.2023.107268] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/16/2023] [Accepted: 08/28/2023] [Indexed: 09/08/2023]
Abstract
Methotrexate (MTX) is an antimetabolite used to treat inflammatory diseases, autoimmune disorders and some malignancies. However, it has some life-threatening side effects such as nephrotoxicity which limit its clinical applications. That motivated the attention to seek for a defensive material to improve the outcomes of methotrexate while minimizing both renal and non-renal toxicity. Both honey (H) and olive oil (OO) are bioactive substances widely used as nutraceuticals that exhibited a potent therapeutic and antioxidant properties. This study aimed to assess the possible protective effect of H and OO intake either singly or together against the biochemical and structural Methotrexate-induced nephrotoxicity in rats. The study was conducted on 56 adult albino rats, they were divided into seven groups (n = 8): group 1 received only distelled water (negative control), group 2 received H (1.2 g/kg/day), group 3 received OO (1.25 ml/kg/day), group 4 received a single intraperitoneal injection of MTX (20 mg/kg), group 5 received MTX and H, group 6 received MTX and OO, group 7 received MTX, H and OO together. At the end of the experiment (2 weeks), all rats were sacrificed, and blood samples were assessed for kidney function tests. Kidney tissues were evaluated for several antioxidant parameters including Malondialdehyde (MDA), Superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) activities. Tissues were also processed for histological and immunohistochemical assessments. Results revealed that both H and OO improved the kidney function markers, histopathological and immunohistological changes due to Methotrexate-induced renal damage. Additionally, both substances also redeemed the oxidative damage of the kidney by decreasing MDA and increasing anti-oxidant enzymatic activities. Such effects were more apparent when the two substances were given together. Ultimately, our results proof that H and OO amiolerate the Methotrexate-induced nephrotoxicity in rats, thus they can be used as an adjuvant supplements for patients requiring methotrexate therapy.
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Affiliation(s)
- Gamal S Abd El-Aziz
- Department of Clinical Anatomy, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hani A Alturkistani
- Department of Clinical Anatomy, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Rasha A Alshali
- Department of Clinical Anatomy, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Mervat M Halawani
- Department of Clinical Anatomy, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Raid M Hamdy
- Department of Clinical Anatomy, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Waheeb S Aggad
- Department of Anatomy, Faculty of Medicine, University of Jeddah, Jeddah, Saudi Arabia
| | - Nezar J Kamal
- Department of Clinical Anatomy, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Emad A Hindi
- Department of Clinical Anatomy, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
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Chen Q, Yao L, Liu Q, Hou J, Qiu X, Chen M, Wu Z, Hu D, Cui F, Yan T. Exosome-coated polydatin nanoparticles in the treatment of radiation-induced intestinal damage. Aging (Albany NY) 2023; 15:6905-6920. [PMID: 37466428 PMCID: PMC10415572 DOI: 10.18632/aging.204882] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 06/22/2023] [Indexed: 07/20/2023]
Abstract
This study aimed to develop an exosome-coated polydatin (PD) nanoparticles (exo-PD) for improving the water solubility and bioavailability of polydatin and explore its salutary effects on intestinal radiation injury. Exosomes (exo) were extracted from the medium of human amniotic fluid stem cells (hAFSc). Mice were divided into control group, irradiation (IR) group, irradiation+PD (IR+PD) group, irradiation+exo (IR+exo) group and irradiation+exo-PD (IR+exo-PD) group. The results of characterization of protein markers, particle size, morphology and cellular uptake ability confirmed that exosomes were effectively isolated using ultracentrifugation. Compared with the IR group, exo-PD improved cell viability, prolonged survival of mice, improved leukocyte count and reduced diarrhea rate. Histological results showed that the exo-PD group had significant improvements in small intestinal villus length and crypt number and less crypt cell damage. exo-PD could reduce IL-1α and IL-6 levels, reduced γ-H2AX expression, increased mitochondrial membrane potential, enhanced oxidative phosphorylation, and delayed cellular senescence. exo-PD could alleviate intestinal injury by improving mitochondrial function through PI3K-AKT pathway. The exo-PD was able to reduce radiation damage to intestinal cells and could be a potential candidate for salvage of intestinal radiation damage.
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Affiliation(s)
- Qiu Chen
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou 215123, China
| | - Lei Yao
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou 215123, China
| | - Quanbin Liu
- Rocket Force Specialty Medical Center PLA, Beijing 100088, China
| | - Jun Hou
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xinyu Qiu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou 215123, China
| | - Mengyuan Chen
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou 215123, China
| | - Zhuojun Wu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou 215123, China
| | - Duanmin Hu
- Department of Gastroenterology, The Second Affiliated Hospital of Soochow University, Suzhou 215123, China
| | - Fengmei Cui
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou 215123, China
| | - Tao Yan
- Rocket Force Specialty Medical Center PLA, Beijing 100088, China
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Kumar VP, Biswas S, Holmes-Hampton GP, Goesch T, Fahl W, Ghosh SP. PrC-210 Protects against Radiation-Induced Hematopoietic and Intestinal Injury in Mice and Reduces Oxidative Stress. Antioxidants (Basel) 2023; 12:1417. [PMID: 37507957 PMCID: PMC10376632 DOI: 10.3390/antiox12071417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 07/30/2023] Open
Abstract
The development of safe, orally available, and effective prophylactic countermeasures to protect our warfighters is an unmet need because there is no such FDA-approved countermeasure available for use. Th 1-Propanethiol, 3-(methylamino)-2-((methylamino)methyl) (PrC-210), a synthetic small molecule, is a member of a new family of aminothiols designed to reduce toxicity while scavenging reactive oxygen species (ROS). Our study investigated the protective role of a single oral administration of PrC-210 against radiation-induced hematopoietic and intestinal injury in mice. Pre-treatment with PrC-210 significantly improved the survival of mice exposed to a lethal dose of radiation. Our findings indicated that the radioprotective properties of PrC-210 are achieved by accelerating the recovery of the hematopoietic system, stimulating bone marrow progenitor cells, and ameliorating additional biomarkers of hematopoietic injury. PrC-210 pre-treatment reduced intestinal injury in mice exposed to a lethal dose of radiation by restoring jejunal crypts and villi, reducing translocation of bacteria to the spleen, maintaining citrulline levels, and reducing the sepsis marker serum amyloid A (SAA) in serum. Finally, PrC-210 pre-treatment led to a significant reduction (~10 fold) of Nos2 expression (inducible nitric oxide) in the spleen and decreased oxidative stress by enhancing the antioxidant defense system. These data support the further development of PrC-210 to receive approval from the FDA to protect warfighters and first responders from exposure to the harmful effects of ionizing radiation.
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Affiliation(s)
- Vidya P Kumar
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD 20889, USA
| | - Shukla Biswas
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD 20889, USA
| | - Gregory P Holmes-Hampton
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD 20889, USA
| | | | - William Fahl
- Obvia Pharmaceuticals Ltd., Madison, WI 53705, USA
- Wisconsin Institutes for Medical Research, Department of Oncology, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Sanchita P Ghosh
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD 20889, USA
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Diaz J, Kuhlman BM, Edenhoffer NP, Evans AC, Martin KA, Guida P, Rusek A, Atala A, Coleman MA, Wilson PF, Almeida-Porada G, Porada CD. Immediate effects of acute Mars mission equivalent doses of SEP and GCR radiation on the murine gastrointestinal system-protective effects of curcumin-loaded nanolipoprotein particles (cNLPs). FRONTIERS IN ASTRONOMY AND SPACE SCIENCES 2023; 10:1117811. [PMID: 38741937 PMCID: PMC11089821 DOI: 10.3389/fspas.2023.1117811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Introduction Missions beyond low Earth orbit (LEO) will expose astronauts to ionizing radiation (IR) in the form of solar energetic particles (SEP) and galactic cosmic rays (GCR) including high atomic number and energy (HZE) nuclei. The gastrointestinal (GI) system is documented to be highly radiosensitive with even relatively low dose IR exposures capable of inducing mucosal lesions and disrupting epithelial barrier function. IR is also an established risk factor for colorectal cancer (CRC) with several studies examining long-term GI effects of SEP/GCR exposure using tumor-prone APC mouse models. Studies of acute short-term effects of modeled space radiation exposures in wildtype mouse models are more limited and necessary to better define charged particle-induced GI pathologies and test novel medical countermeasures (MCMs) to promote astronaut safety. Methods In this study, we performed ground-based studies where male and female C57BL/6J mice were exposed to γ-rays, 50 MeV protons, or 1 GeV/n Fe-56 ions at the NASA Space Radiation Laboratory (NSRL) with histology and immunohistochemistry endpoints measured in the first 24 h post-irradiation to define immediate SEP/GCR-induced GI alterations. Results Our data show that unlike matched γ-ray controls, acute exposures to protons and iron ions disrupts intestinal function and induces mucosal lesions, vascular congestion, epithelial barrier breakdown, and marked enlargement of mucosa-associated lymphoid tissue. We also measured kinetics of DNA double-strand break (DSB) repair using gamma-H2AX- specific antibodies and apoptosis via TUNEL labeling, noting the induction and disappearance of extranuclear cytoplasmic DNA marked by gamma-H2AX only in the charged particle-irradiated samples. We show that 18 h pre-treatment with curcumin-loaded nanolipoprotein particles (cNLPs) delivered via IV injection reduces DSB-associated foci levels and apoptosis and restore crypt villi lengths. Discussion These data improve our understanding of physiological alterations in the GI tract immediately following exposures to modeled space radiations and demonstrates effectiveness of a promising space radiation MCM.
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Affiliation(s)
- Jonathan Diaz
- Wake Forest Institute for Regenerative Medicine, Winston Salem, NC, United States
| | - Bradford M. Kuhlman
- Wake Forest Institute for Regenerative Medicine, Winston Salem, NC, United States
| | | | - Angela C. Evans
- Department of Radiation Oncology, University of California Davis School of Medicine, Sacramento, CA, United States
- Biosciences and Biotechnology Division, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Kelly A. Martin
- Biosciences and Biotechnology Division, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Peter Guida
- NASA Space Radiation Laboratory, Brookhaven National Laboratory, Upton, NY, United States
| | - Adam Rusek
- NASA Space Radiation Laboratory, Brookhaven National Laboratory, Upton, NY, United States
| | - Anthony Atala
- Wake Forest Institute for Regenerative Medicine, Winston Salem, NC, United States
| | - Matthew A. Coleman
- Department of Radiation Oncology, University of California Davis School of Medicine, Sacramento, CA, United States
- Biosciences and Biotechnology Division, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Paul F. Wilson
- Department of Radiation Oncology, University of California Davis School of Medicine, Sacramento, CA, United States
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, United States
| | - Graça Almeida-Porada
- Wake Forest Institute for Regenerative Medicine, Winston Salem, NC, United States
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Dutta A, Dahiya A. Quercetin 3-O rutinoside prevents gastrointestinal injury through regulation of apoptosis in 7.5 Gy total body irradiated mice. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 112:154692. [PMID: 36863087 DOI: 10.1016/j.phymed.2023.154692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 01/02/2023] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Despite the heightened threat to unforeseen nuclear/radiological exposures worldwide, no countermeasures are currently approved to prevent gastrointestinal (GI) toxicity induced by radiation in humans. PURPOSE In this study, we aim to establish the gastroprotective role of flavonoid, Quercetin-3-O-rutinoside (Q-3-R) against 7.5 Gy total body gamma radiation dose that contributes to the hematopoietic syndrome. METHODS Q-3-R (10 mg/kg body weight) was administered intramuscularly to C57BL/6 male mice before exposure to 7.5 Gy and monitored for morbidity and mortality. The GI protection against radiation was ascertained by histopathological and xylose absorption studies. Intestinal apoptosis, crypt proliferation and apoptotic signaling were also investigated in different treatment groups. RESULTS We found that Q-3-R prevented the radiation-induced loss of mitochondrial membrane potential, maintained ATP levels, regulated the apoptotic pathway, and activated crypt cell proliferation in the intestine. Radiation-induced villi and crypt damage as well as mal-absorption were significantly minimized in the Q-3-R treated group. We observed 100% survival post Q-3-R administration against 33.3% lethality in 7.5 Gy (LD33.3/30) exposed C57BL/6 mice. The Q-3-R pre-treated mice that survived the 7.5 Gy dose revealed no pathological changes related to the development of fibrosis in the intestine and thickened mucosal wall till 4 months post irradiation. Complete hematopoietic recovery was observed in these surviving mice when compared to age matched control. CONCLUSION The findings revealed that Q-3-R regulated the apoptotic process to achieve GI protection against LD33.3/30 dose (7.5 Gy) that primarily caused death due to hematopoietic failure. The recovery observed in mice survivors suggested that this molecule may also have the potential to minimize side effects on normal tissues during radiotherapy.
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Affiliation(s)
- Ajaswrata Dutta
- Division of CBRN, Institute of Nuclear Medicine and Allied Sciences (INMAS), Defence Research and Development Organization (DRDO), Brig. S.K Mazumdar Marg, Timarpur, Delhi 110054, India.
| | - Akshu Dahiya
- Division of CBRN, Institute of Nuclear Medicine and Allied Sciences (INMAS), Defence Research and Development Organization (DRDO), Brig. S.K Mazumdar Marg, Timarpur, Delhi 110054, India
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Ashrafi S, Alam S, Sultana A, Raj A, Emon NU, Richi FT, Sharmin T, Moon M, Park MN, Kim B. Papaverine: A Miraculous Alkaloid from Opium and Its Multimedicinal Application. Molecules 2023; 28:3149. [PMID: 37049912 PMCID: PMC10095881 DOI: 10.3390/molecules28073149] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 03/28/2023] [Accepted: 03/29/2023] [Indexed: 04/05/2023] Open
Abstract
The pharmacological actions of benzylisoquinoline alkaloids are quite substantial, and have recently attracted much attention. One of the principle benzylisoquinoline alkaloids has been found in the unripe seed capsules of Papaver somniferum L. Although it lacks analgesic effects and is unrelated to the compounds in the morphine class, it is a peripheral vasodilator and has a direct effect on vessels. It is reported to inhibit the cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP) phosphodiesterase in smooth muscles, and it has been observed to increase intracellular levels of cAMP and cGMP. It induces coronary, cerebral, and pulmonary artery dilatation and helps to lower cerebral vascular resistance and enhance cerebral blood flow. Current pharmacological research has revealed that papaverine demonstrates a variety of biological activities, including activity against erectile dysfunction, postoperative vasospasms, and pulmonary vasoconstriction, as well as antiviral, cardioprotective, anti-inflammatory, anticancer, neuroprotective, and gestational actions. It was recently demonstrated that papaverine has the potential to control SARS-CoV-2 by preventing its cytopathic effect. These experiments were carried out both in vitro and in vivo and require an extensive understanding of the mechanisms of action. With its multiple mechanisms, papaverine can be considered as a natural compound that is used to develop therapeutic drugs. To validate its applications, additional research is required into its precise therapeutic mechanisms as well as its acute and chronic toxicities. Therefore, the goal of this review is to discuss the major studies and reported clinical studies looking into the pharmacological effects of papaverine and the mechanisms of action underneath these effects. Additionally, it is recommended to conduct further research via significant pharmacodynamic and pharmacokinetic studies.
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Affiliation(s)
- Sania Ashrafi
- Department of Pharmaceutical Chemistry, University of Dhaka, Dhaka 1000, Bangladesh
| | - Safaet Alam
- Department of Pharmaceutical Chemistry, University of Dhaka, Dhaka 1000, Bangladesh
- Drugs and Toxins Research Division, BCSIR Laboratories Rajshahi, Bangladesh Council of Scientific and Industrial Research, Rajshahi 6206, Bangladesh
| | - Arifa Sultana
- Department of Pharmaceutical Chemistry, University of Dhaka, Dhaka 1000, Bangladesh
| | - Asef Raj
- Department of Pharmaceutical Chemistry, University of Dhaka, Dhaka 1000, Bangladesh
| | - Nazim Uddin Emon
- Department of Pharmacy, Faculty of Science and Engineering, International Islamic University Chittagong, Chittagong 4318, Bangladesh
- Department of Chemistry and Biochemistry, Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, USA
| | - Fahmida Tasnim Richi
- Department of Pharmaceutical Chemistry, University of Dhaka, Dhaka 1000, Bangladesh
| | - Tasnuva Sharmin
- Department of Pharmaceutical Chemistry, University of Dhaka, Dhaka 1000, Bangladesh
| | - Myunghan Moon
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Moon Nyeo Park
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Bonglee Kim
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
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Evans AC, Martin KA, Saxena M, Bicher S, Wheeler E, Cordova EJ, Porada CD, Almeida-Porada G, Kato TA, Wilson PF, Coleman MA. Curcumin Nanodiscs Improve Solubility and Serve as Radiological Protectants against Ionizing Radiation Exposures in a Cell-Cycle Dependent Manner. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12203619. [PMID: 36296810 PMCID: PMC9609432 DOI: 10.3390/nano12203619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 10/01/2022] [Accepted: 10/08/2022] [Indexed: 05/27/2023]
Abstract
Curcumin, a natural polyphenol derived from the spice turmeric (Curcuma longa), contains antioxidant, anti-inflammatory, and anti-cancer properties. However, curcumin bioavailability is inherently low due to poor water solubility and rapid metabolism. Here, we further refined for use curcumin incorporated into "biomimetic" nanolipoprotein particles (cNLPs) consisting of a phospholipid bilayer surrounded by apolipoprotein A1 and amphipathic polymer scaffolding moieties. Our cNLP formulation improves the water solubility of curcumin over 30-fold and produces nanoparticles with ~350 µg/mL total loading capacity for downstream in vitro and in vivo applications. We found that cNLPs were well tolerated in AG05965/MRC-5 human primary lung fibroblasts compared to cultures treated with curcumin solubilized in DMSO (curDMSO). Pre-treatment with cNLPs of quiescent G0/G1-phase MRC-5 cultures improved cell survival following 137Cs gamma ray irradiations, although this finding was reversed in asynchronously cycling log-phase cell cultures. These findings may be useful for establishing cNLPs as a method to improve curcumin bioavailability for administration as a radioprotective and/or radiomitigative agent against ionizing radiation (IR) exposures in non-cycling cells or as a radiosensitizing agent for actively dividing cell populations, such as tumors.
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Affiliation(s)
- Angela C. Evans
- Department of Radiation Oncology, University of California Davis, Sacramento, CA 95817, USA
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - Kelly A. Martin
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - Manoj Saxena
- Department of Radiation Oncology, University of California Davis, Sacramento, CA 95817, USA
- Institute of Structural and Molecular Biology, Birkbeck College, University of London, London WC1E 7HX, UK
| | - Sandra Bicher
- Institute of Radiation Medicine, Helmholtz Zentrum München, 85764 Munich, Germany
- Department of Radiation Oncology, Klinikum Rechts der Isar, Technical University Munich (TUM), 81675 Munich, Germany
| | - Elizabeth Wheeler
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - Emilio J. Cordova
- National Institute of Genomic Medicine, Oncogenomic Consortium, Mexico City 14610, Mexico
| | - Christopher D. Porada
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA
| | - Graça Almeida-Porada
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA
| | - Takamitsu A. Kato
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - Paul F. Wilson
- Department of Radiation Oncology, University of California Davis, Sacramento, CA 95817, USA
- Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Matthew A. Coleman
- Department of Radiation Oncology, University of California Davis, Sacramento, CA 95817, USA
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
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The Benefit of Supplemental Vitamin E to Reduce Radiation-Induced Oral Side Effects in Head and Neck Cancer. TOP CLIN NUTR 2022. [DOI: 10.1097/tin.0000000000000283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Park HR, Lee JH, Ji HJ, Lim S, Ahn KB, Seo HS. Radioprotection of deinococcal exopolysaccharide BRD125 by regenerating hematopoietic stem cells. Front Oncol 2022; 12:898185. [PMID: 36226052 PMCID: PMC9549790 DOI: 10.3389/fonc.2022.898185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
There is a substantial need for the development of biomaterials for protecting hematopoietic stem cells and enhancing hematopoiesis after radiation damage. Bacterial exopolysaccharide (EPS) has been shown to be very attractive to researchers as a radioprotectant owing to its high antioxidant, anti-cancer, and limited adverse effects. In the present study, we isolated EPS from a novel strain, Deinococcus radiodurans BRD125, which produces EPS in high abundance, and investigated its applicability as a radioprotective biomaterial. We found that EPS isolated from EPS-rich D. radiodurans BRD125 (DeinoPol-BRD125) had an excellent free-radical scavenging effect and reduced irradiation-induced apoptosis. In addition, bone-marrow and spleen-cell apoptosis in irradiated mice were significantly reduced by DeinoPol-BRD125 administration. DeinoPol-BRD125 enhanced the expression of hematopoiesis-related cytokines such as GM-CSF, G-GSF, M-CSF, and SCF, thereby enhancing hematopoietic stem cells protection and regeneration. Taken together, our findings are the first to report the immunological mechanism of a novel radioprotectant, DeinoPol-BRD125, which might constitute an ideal radioprotective and radiation mitigating agent as a supplement drug during radiotherapy.
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Affiliation(s)
- Hae Ran Park
- Research Division for Radiation Science, Korea Atomic Energy Research Institute, Jeongeup, South Korea
- *Correspondence: Ho Seong Seo, ; Hae Ran Park,
| | - Ji Hee Lee
- Research Division for Radiation Science, Korea Atomic Energy Research Institute, Jeongeup, South Korea
- Division of Pathogen Resource Management, Center for Public Vaccine Development Support, National Institute of Infectious Diseases, National Institute of Health (NIH), Korea Disease Control and Prevention Agency, Cheongju, South Korea
| | - Hyun Jung Ji
- Research Division for Radiation Science, Korea Atomic Energy Research Institute, Jeongeup, South Korea
- Department of Oral Microbiology and Immunology, DRI, and BK21 Plus Program, School of Dentistry, Seoul National University, Seoul, South Korea
| | - Sangyong Lim
- Research Division for Radiation Science, Korea Atomic Energy Research Institute, Jeongeup, South Korea
- Department of Radiation Science, University of Science and Technology, Daejeon, South Korea
| | - Ki Bum Ahn
- Research Division for Radiation Science, Korea Atomic Energy Research Institute, Jeongeup, South Korea
| | - Ho Seong Seo
- Research Division for Radiation Science, Korea Atomic Energy Research Institute, Jeongeup, South Korea
- Department of Radiation Science, University of Science and Technology, Daejeon, South Korea
- *Correspondence: Ho Seong Seo, ; Hae Ran Park,
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Underlying Anticancer Mechanisms and Synergistic Combinations of Phytochemicals with Cancer Chemotherapeutics: Potential Benefits and Risks. J FOOD QUALITY 2022. [DOI: 10.1155/2022/1189034] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Cancer therapies are associated with various challenges including the emergence of multidrug resistant tumors, toxicological issues, severe side effects, and economic burden. To counteract these effects, natural products as substitutes and adjuvant therapies have received considerable attention owing to their safety, efficacy, and economic aspects. Various preclinical and clinical studies revealed that natural products and their combinations with chemotherapeutics mediate their anticancer effects via modulation of various signaling pathways implicated in promoting apoptosis, inhibiting excessive cellular proliferation, and mobilizing the immune system. Several lead phytochemicals including curcumin, resveratrol, quercetin, and cannabinoids synergistically act with cancer chemotherapeutics reducing cell proliferation and inducing apoptosis and cell cycle arrest. However, clinical studies on the subject matter are limited and need further extensive studies. It has been observed that patients undergoing chemotherapy use alternative therapies to ameliorate the symptoms associated with the use of chemotherapeutic agents. Nevertheless, some of the patients inform their physicians regarding herbal medicine during chemotherapy while others do not, and even most of the patients do not know the composition of herbal medicine they consume during chemotherapy. Herbal interactions with chemotherapeutics are associated with both beneficial and harmful aspects, but the beneficial aspect overweighs the harmful ones in terms of controlling the symptoms associated with the chemotherapy. Nonetheless, a large number of herbal medicines have been demonstrated to have synergistic effect with chemotherapy and alleviate the side effects of chemotherapeutic agents. The concomitant use of the majority of herbal medicines with chemotherapy has been demonstrated to be beneficial in multiple malignant tumors like cancer of blood, lungs, kidneys, liver, skin, and gastrointestinal tract. However, herbal medicines which possess positive interaction and improve the quality of life of patients should be sorted out and integrated with the chemotherapy. There should be a quality control system for the appraisal of herbal medicine, and there should also be an appropriate system of patient-doctor communication to counsel the patients regarding the beneficial and deleterious effects of the herbal medicine in combination with chemotherapy.
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Nuclear and Radiological Emergencies: Biological Effects, Countermeasures and Biodosimetry. Antioxidants (Basel) 2022; 11:antiox11061098. [PMID: 35739995 PMCID: PMC9219873 DOI: 10.3390/antiox11061098] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 05/26/2022] [Accepted: 05/27/2022] [Indexed: 11/17/2022] Open
Abstract
Atomic and radiological crises can be caused by accidents, military activities, terrorist assaults involving atomic installations, the explosion of nuclear devices, or the utilization of concealed radiation exposure devices. Direct damage is caused when radiation interacts directly with cellular components. Indirect effects are mainly caused by the generation of reactive oxygen species due to radiolysis of water molecules. Acute and persistent oxidative stress associates to radiation-induced biological damages. Biological impacts of atomic radiation exposure can be deterministic (in a period range a posteriori of the event and because of destructive tissue/organ harm) or stochastic (irregular, for example cell mutation related pathologies and heritable infections). Potential countermeasures according to a specific scenario require considering basic issues, e.g., the type of radiation, people directly affected and first responders, range of doses received and whether the exposure or contamination has affected the total body or is partial. This review focuses on available medical countermeasures (radioprotectors, radiomitigators, radionuclide scavengers), biodosimetry (biological and biophysical techniques that can be quantitatively correlated with the magnitude of the radiation dose received), and strategies to implement the response to an accidental radiation exposure. In the case of large-scale atomic or radiological events, the most ideal choice for triage, dose assessment and victim classification, is the utilization of global biodosimetry networks, in combination with the automation of strategies based on modular platforms.
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Review of the effect of reduced levels of background radiation on living organisms. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Al-Jumayli M, Brown SL, Chetty IJ, Extermann M, Movsas B. The Biological Process of Aging and the Impact of Ionizing Radiation. Semin Radiat Oncol 2022; 32:172-178. [DOI: 10.1016/j.semradonc.2021.11.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Aygün B, Akıncıoğlu A, Sayyed M, Karabulut A. Investigation of some drug active substances able to protect against radiation damage with experimental and Monte Carlo calculations. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2021.109850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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22
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Kumar A, Choudhary S, Kumar S, Adhikari JS, Kapoor S, Chaudhury NK. Role of melatonin mediated G-CSF induction in hematopoietic system of gamma-irradiated mice. Life Sci 2022; 289:120190. [PMID: 34883100 DOI: 10.1016/j.lfs.2021.120190] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 11/24/2021] [Accepted: 11/25/2021] [Indexed: 11/16/2022]
Abstract
AIMS Hematopoietic acute radiation syndrome (H-ARS) can cause lethality, and therefore, the necessity of a safe radioprotector. The present study was focused on investigating the role of melatonin in granulocytes colony-stimulating factor (G-CSF) and related mechanisms underlying the reduction of DNA damage in hematopoietic system of irradiated mice. MAIN METHODS C57BL/6 male mice were exposed to 2, 5, and 7.5Gy of whole-body irradiation (WBI), 30 min after intra-peritoneal administration of melatonin with different doses. Mice were sacrificed at different time intervals after WBI, and bone marrow, splenocytes, and peripheral blood lymphocytes were isolated for studying various parameters including micronuclei (MN), cell cycle, comet, γ-H2AX, gene expression, amino acid profiling, and hematology. KEY FINDINGS Melatonin100mg/kg ameliorated radiation (7.5Gy and 5Gy) induced MN frequency and cell death in bone marrow without mortality. At 24 h of post-WBI (2Gy), the frequency of micronucleated polychromatic erythrocytes (mnPCE) with different melatonin doses revealed 20 mg/kg as optimal i.p. dose for protecting the hematopoietic system against radiation injury. In comet assay, a significant reduction in radiation-induced % DNA tail (p ≤ 0.05) was observed at this dose. Melatonin reduced γ-H2AX foci/cell and eventually reached to the control level. Melatonin also decreased blood arginine levels in mice after 24 h of WBI. The gene expression of G-CSF, Bcl-2-associated X protein (BAX), and Bcl2 indicated the role of melatonin in G-CSF regulation and downstream pro-survival pathways along with anti-apoptotic activity. SIGNIFICANCE The results revealed that melatonin recovers the hematopoietic system of irradiated mice by inducing G-CSF mediated radioprotection.
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Affiliation(s)
- Arun Kumar
- Division of Radiation Biodosimetry, Institute of Nuclear Medicine and Allied Sciences (INMAS)-Defence Research and Development Organisation (DRDO), Brig. SK Mazumdar Marg, Timarpur, Delhi 110054, India
| | - Sandeep Choudhary
- Division of Radiation Biodosimetry, Institute of Nuclear Medicine and Allied Sciences (INMAS)-Defence Research and Development Organisation (DRDO), Brig. SK Mazumdar Marg, Timarpur, Delhi 110054, India; Department of Pharmacology, School of Pharmaceutical Education and Research, Hamdard University, Hamdard nagar, New Delhi 110062, India
| | - Somesh Kumar
- Pediatrics Genetics & Research Laboratory, Department of Pediatrics, Maulana Azad Medical College & Associated Lok Nayak Hospital, Delhi 110002, India
| | - Jawahar S Adhikari
- Division of Radiation Biodosimetry, Institute of Nuclear Medicine and Allied Sciences (INMAS)-Defence Research and Development Organisation (DRDO), Brig. SK Mazumdar Marg, Timarpur, Delhi 110054, India
| | - Seema Kapoor
- Pediatrics Genetics & Research Laboratory, Department of Pediatrics, Maulana Azad Medical College & Associated Lok Nayak Hospital, Delhi 110002, India
| | - Nabo K Chaudhury
- Division of Radiation Biodosimetry, Institute of Nuclear Medicine and Allied Sciences (INMAS)-Defence Research and Development Organisation (DRDO), Brig. SK Mazumdar Marg, Timarpur, Delhi 110054, India.
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Green solvents to tune the biomolecules’ solubilization in aqueous media: An experimental and in silico approach by COSMO-RS. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117314] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Ku TC, Wang PH, Huang JL, Chen HY, Fang JT, Hsieh HL, Chen JL. The survival outcome of nasopharyngeal cancer patients with traditional Chinese medicine external use: A hospital-based study. JOURNAL OF ETHNOPHARMACOLOGY 2021; 279:114380. [PMID: 34197958 DOI: 10.1016/j.jep.2021.114380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 06/13/2021] [Accepted: 06/26/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE External-use traditional Chinese medicine (TCM) agents are widely used to relieve the adverse effects of radiation therapy in nasopharyngeal cancer patients. AIM OF THE STUDY Our study aimed to evaluate the influence of external-use TCM agents to relieve radiotherapy-related adverse effects on the efficacy of radiation therapy and the prognosis of nasopharyngeal cancer patients. MATERIALS AND METHODS By using the Chang Gung Research Database (CGRD), we analyzed 1823 newly diagnosed nasopharyngeal cancer patients with radiotherapy-related adverse effects between 2001/01 and 2015/12. We used Kaplan-Meier analysis and a Cox regression model to estimate the differences in effects on survival outcomes between two groups, TCM external users and non-TCM external users. RESULTS We found that TCM external users had significantly better 3-year and 5-year overall survival rates (log-rank test, p = 0.0377 and p = 0.034, respectively) than non-TCM external users. The 3-year and 5-year disease-free survival rates were not statistically significantly different between the groups. We also found a trend of improved 3-year and 5-year overall survival rates in TCM external users with advanced-stage disease, without statistical significance (log-rank test, p = 0.10 and p = 0.089, respectively). The subgroup analysis revealed lower risks of mortality in TCM external users among the nonhypertension, nonhyperlipidemia, nonischemic heart disease, noncirrhosis, and nonchronic kidney disease groups. CONCLUSIONS Our study showed that TCM agents external use could significantly improve 3-year and 5-year overall survival rates in nasopharyngeal cancer patients with radiotherapy-related adverse effects.
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Affiliation(s)
- Te-Chien Ku
- Division of Chinese Internal Medicine, Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
| | - Pin-Han Wang
- Division of Chinese Internal Medicine, Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
| | - Jhen-Ling Huang
- Center for Big Data Analytics and Statistics, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
| | - Hsing-Yu Chen
- Division of Chinese Internal Medicine, Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
| | - Ji-Tseng Fang
- Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, Taoyuan, Taiwan; School of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
| | - Hsi-Lung Hsieh
- Department of Nursing, Division of Basic Medical Sciences, Research Center for Chinese Herbal Medicine, And Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Taoyuan, Taiwan; Department of Neurology, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
| | - Jiun-Liang Chen
- Division of Chinese Internal Medicine, Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan; School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
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Farid A, Haytham M, Essam A, Safwat G. Efficacy of the aqueous extract of Siwa dates in protection against the whole body γ irradiation induced damages in mice. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2021. [DOI: 10.1080/16878507.2021.1963628] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Alyaa Farid
- Zoology Dep., Faculty of Science, Cairo University, Giza, Egypt
| | - Merna Haytham
- Faculty of Biotechnology, October University for Modern Sciences and Arts (MSA), Giza, Egypt
| | - Abdelrahman Essam
- Faculty of Biotechnology, October University for Modern Sciences and Arts (MSA), Giza, Egypt
| | - Gehan Safwat
- Faculty of Biotechnology, October University for Modern Sciences and Arts (MSA), Giza, Egypt
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Rutin Mediated Apoptotic Cell Death in Caski Cervical Cancer Cells via Notch- 1 and Hes- 1 Downregulation. Life (Basel) 2021; 11:life11080761. [PMID: 34440505 PMCID: PMC8400226 DOI: 10.3390/life11080761] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/15/2021] [Accepted: 07/16/2021] [Indexed: 12/13/2022] Open
Abstract
Natural dietary molecules such as flavonoids have been recognized for their immense potential in cancer therapeutics with several health benefits. Hes-1 and Notch-1 overexpression has been associated with the progression of cervical cancer. However, the apoptosis-inducing potential of one such potent flavanol against these two key components of the Notch signaling pathway in cervical cancer has not been elucidated to date. Therefore, in this study, we performed several in vitro assays to gain detailed insight about the apoptotic inducing effect of rutin as well as its modulatory effect on Notch-1 and Hes-1 in cervical cancer cells. The results indicated that rutin led to a dose-dependent antiproliferative effects on Caski cervical cancer cells. DAPI and Mitotracker red staining revealed that rutin induced significant apoptotic effects via caspase-3/9 activation, ROS generation, and alteration in Bax/Bcl2 mRNA expression. Cell cycle analysis resulted in the arrest of cell cycle progression in G0/G1 that was associated with a reduced expression of CDK4 and Cyclin D1. The gene expression analysis further revealed that rutin treatment decreases Notch-1 and Hes-1 mRNA expression. Altogether, these results showed that rutin showed potent anticancer effects in human cervical cancer Caski cells by triggering apoptosis, G0/G1 phase arrest, and downregulating the level of Notch-1 and Hes-1 of the Notch signaling pathway.
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Flieger J, Flieger W, Baj J, Maciejewski R. Antioxidants: Classification, Natural Sources, Activity/Capacity Measurements, and Usefulness for the Synthesis of Nanoparticles. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4135. [PMID: 34361329 PMCID: PMC8347950 DOI: 10.3390/ma14154135] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/15/2021] [Accepted: 07/23/2021] [Indexed: 02/06/2023]
Abstract
Natural extracts are the source of many antioxidant substances. They have proven useful not only as supplements preventing diseases caused by oxidative stress and food additives preventing oxidation but also as system components for the production of metallic nanoparticles by the so-called green synthesis. This is important given the drastically increased demand for nanomaterials in biomedical fields. The source of ecological technology for producing nanoparticles can be plants or microorganisms (yeast, algae, cyanobacteria, fungi, and bacteria). This review presents recently published research on the green synthesis of nanoparticles. The conditions of biosynthesis and possible mechanisms of nanoparticle formation with the participation of bacteria are presented. The potential of natural extracts for biogenic synthesis depends on the content of reducing substances. The assessment of the antioxidant activity of extracts as multicomponent mixtures is still a challenge for analytical chemistry. There is still no universal test for measuring total antioxidant capacity (TAC). There are many in vitro chemical tests that quantify the antioxidant scavenging activity of free radicals and their ability to chelate metals and that reduce free radical damage. This paper presents the classification of antioxidants and non-enzymatic methods of testing antioxidant capacity in vitro, with particular emphasis on methods based on nanoparticles. Examples of recent studies on the antioxidant activity of natural extracts obtained from different species such as plants, fungi, bacteria, algae, lichens, actinomycetes were collected, giving evaluation methods, reference antioxidants, and details on the preparation of extracts.
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Affiliation(s)
- Jolanta Flieger
- Department of Analytical Chemistry, Medical University of Lublin, Chodźki 4A, 20-093 Lublin, Poland
| | - Wojciech Flieger
- Chair and Department of Anatomy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland; (W.F.); (J.B.); (R.M.)
| | - Jacek Baj
- Chair and Department of Anatomy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland; (W.F.); (J.B.); (R.M.)
| | - Ryszard Maciejewski
- Chair and Department of Anatomy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland; (W.F.); (J.B.); (R.M.)
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Checker R, Patwardhan RS, Jayakumar S, Maurya DK, Bandekar M, Sharma D, Sandur SK. Chemical and biological basis for development of novel radioprotective drugs for cancer therapy. Free Radic Res 2021; 55:595-625. [PMID: 34181503 DOI: 10.1080/10715762.2021.1876854] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Ionizing radiation (IR) causes chemical changes in biological systems through direct interaction with the macromolecules or by causing radiolysis of water. This property of IR is harnessed in the clinic for radiotherapy in almost 50% of cancers patients. Despite the advent of stereotactic radiotherapy instruments and other advancements in shielding techniques, the inadvertent deposition of radiation dose in the surrounding normal tissue can cause late effects of radiation injury in normal tissues. Radioprotectors, which are chemical or biological agents, can reduce or mitigate these toxic side-effects of radiotherapy in cancer patients and also during radiation accidents. The desired characteristics of an ideal radioprotector include low chemical toxicity, high risk to benefit ratio and specific protection of normal cells against the harmful effects of radiation without compromising the cytotoxic effects of IR on cancer cells. Since reactive oxygen species (ROS) are the major contributors of IR mediated toxicity, plethora of studies have highlighted the potential role of antioxidants to protect against IR induced damage. However, owing to the lack of any clinically approved radioprotector against whole body radiation, researchers have shifted the focus toward finding alternate targets that could be exploited for the development of novel agents. The present review provides a comprehensive insight in to the different strategies, encompassing prime molecular targets, which have been employed to develop radiation protectors/countermeasures. It is anticipated that understanding such factors will lead to the development of novel strategies for increasing the outcome of radiotherapy by minimizing normal tissue toxicity.
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Affiliation(s)
- Rahul Checker
- Radiation Biology & Health Sciences Division, Bio-science Group, Bhabha Atomic Research Centre, Mumbai, India.,Homi Bhabha National Institute, Anushaktinagar, Mumbai, India
| | - Raghavendra S Patwardhan
- Radiation Biology & Health Sciences Division, Bio-science Group, Bhabha Atomic Research Centre, Mumbai, India.,Homi Bhabha National Institute, Anushaktinagar, Mumbai, India
| | - Sundarraj Jayakumar
- Radiation Biology & Health Sciences Division, Bio-science Group, Bhabha Atomic Research Centre, Mumbai, India
| | - Dharmendra Kumar Maurya
- Radiation Biology & Health Sciences Division, Bio-science Group, Bhabha Atomic Research Centre, Mumbai, India.,Homi Bhabha National Institute, Anushaktinagar, Mumbai, India
| | - Mayuri Bandekar
- Radiation Biology & Health Sciences Division, Bio-science Group, Bhabha Atomic Research Centre, Mumbai, India
| | - Deepak Sharma
- Radiation Biology & Health Sciences Division, Bio-science Group, Bhabha Atomic Research Centre, Mumbai, India.,Homi Bhabha National Institute, Anushaktinagar, Mumbai, India
| | - Santosh K Sandur
- Radiation Biology & Health Sciences Division, Bio-science Group, Bhabha Atomic Research Centre, Mumbai, India.,Homi Bhabha National Institute, Anushaktinagar, Mumbai, India
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Nemec-Bakk AS, Niccoli S, Davidson C, Roy D, Stoa L, Sreetharan S, Simard A, Boreham DR, Wilson JY, Tai T, Lees SJ, Khaper N. Lasting Effects of Low to Non-Lethal Radiation Exposure during Late Gestation on Offspring's Cardiac Metabolism and Oxidative Stress. Antioxidants (Basel) 2021; 10:antiox10050816. [PMID: 34065524 PMCID: PMC8160807 DOI: 10.3390/antiox10050816] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/12/2021] [Accepted: 05/15/2021] [Indexed: 01/24/2023] Open
Abstract
Ionizing radiation (IR) is known to cause fetal programming, but the physiological effects of low-dose IR are not fully understood. This study examined the effect of low (50 mGy) to non-lethal (300 and 1000 mGy) radiation exposure during late gestation on cardiac metabolism and oxidative stress in adult offspring. Pregnant C57BL/6J mice were exposed to 50, 300, or 1000 mGy of gamma radiation or Sham irradiation on gestational day 15. Sixteen weeks after birth, 18F-Fluorodeoxyglucose (FDG) uptake was examined in the offspring using Positron Emission Tomography imaging. Western blot was used to determine changes in oxidative stress, antioxidants, and insulin signaling related proteins. Male and female offspring from irradiated dams had lower body weights when compared to the Sham. 1000 mGy female offspring demonstrated a significant increase in 18F-FDG uptake, glycogen content, and oxidative stress. 300 and 1000 mGy female mice exhibited increased superoxide dismutase activity, decreased glutathione peroxidase activity, and decreased reduced/oxidized glutathione ratio. We conclude that non-lethal radiation during late gestation can alter glucose uptake and increase oxidative stress in female offspring. These data provide evidence that low doses of IR during the third trimester are not harmful but higher, non-lethal doses can alter cardiac metabolism later in life and sex may have a role in fetal programming.
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Affiliation(s)
- Ashley S. Nemec-Bakk
- Department of Science and Environmental Studies, Lakehead University, Thunder Bay, ON P7B 5E1, Canada;
| | - Sarah Niccoli
- Department of Biology, Lakehead University, Thunder Bay, ON P7B 5E1, Canada; (S.N.); (C.D.); (S.J.L.)
| | - Caitlund Davidson
- Department of Biology, Lakehead University, Thunder Bay, ON P7B 5E1, Canada; (S.N.); (C.D.); (S.J.L.)
| | - Danika Roy
- Northern Ontario School of Medicine, Laurentian University, Sudbury, ON P3E 2C6, Canada; (D.R.); (A.S.); (D.R.B.); (T.C.T.)
| | - Lisa Stoa
- Department of Biology, McMaster University, Hamilton, ON L8S 4L8, Canada; (L.S.); (S.S.); (J.Y.W.)
| | - Shayenthiran Sreetharan
- Department of Biology, McMaster University, Hamilton, ON L8S 4L8, Canada; (L.S.); (S.S.); (J.Y.W.)
| | - Alain Simard
- Northern Ontario School of Medicine, Laurentian University, Sudbury, ON P3E 2C6, Canada; (D.R.); (A.S.); (D.R.B.); (T.C.T.)
| | - Douglas R. Boreham
- Northern Ontario School of Medicine, Laurentian University, Sudbury, ON P3E 2C6, Canada; (D.R.); (A.S.); (D.R.B.); (T.C.T.)
- Northern Ontario School of Medicine, Lakehead University, Thunder Bay, ON P7B 5E1, Canada
- Biomolecular Sciences, Laurentian University, Sudbury, ON P3E 2C6, Canada
| | - Joanna Y. Wilson
- Department of Biology, McMaster University, Hamilton, ON L8S 4L8, Canada; (L.S.); (S.S.); (J.Y.W.)
| | - T.C. Tai
- Northern Ontario School of Medicine, Laurentian University, Sudbury, ON P3E 2C6, Canada; (D.R.); (A.S.); (D.R.B.); (T.C.T.)
- Northern Ontario School of Medicine, Lakehead University, Thunder Bay, ON P7B 5E1, Canada
- Biomolecular Sciences, Laurentian University, Sudbury, ON P3E 2C6, Canada
| | - Simon J. Lees
- Department of Biology, Lakehead University, Thunder Bay, ON P7B 5E1, Canada; (S.N.); (C.D.); (S.J.L.)
- Northern Ontario School of Medicine, Laurentian University, Sudbury, ON P3E 2C6, Canada; (D.R.); (A.S.); (D.R.B.); (T.C.T.)
- Northern Ontario School of Medicine, Lakehead University, Thunder Bay, ON P7B 5E1, Canada
| | - Neelam Khaper
- Department of Biology, Lakehead University, Thunder Bay, ON P7B 5E1, Canada; (S.N.); (C.D.); (S.J.L.)
- Northern Ontario School of Medicine, Laurentian University, Sudbury, ON P3E 2C6, Canada; (D.R.); (A.S.); (D.R.B.); (T.C.T.)
- Northern Ontario School of Medicine, Lakehead University, Thunder Bay, ON P7B 5E1, Canada
- Biomolecular Sciences, Laurentian University, Sudbury, ON P3E 2C6, Canada
- Correspondence:
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Pool MBF, Hamelink TL, van Goor H, van den Heuvel MC, Leuvenink HGD, Moers C. Prolonged ex-vivo normothermic kidney perfusion: The impact of perfusate composition. PLoS One 2021; 16:e0251595. [PMID: 34003874 PMCID: PMC8130974 DOI: 10.1371/journal.pone.0251595] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 04/29/2021] [Indexed: 12/22/2022] Open
Abstract
Normothermic machine perfusion (NMP) of donor kidneys provides the opportunity for improved graft preservation and objective pre-transplant ex-vivo organ assessment. Currently, a multitude of perfusion solutions exist for renal NMP. This study aimed to evaluate four different perfusion solutions side-by-side and determine the influence of different perfusate compositions on measured renal perfusion parameters. Porcine kidneys and blood were obtained from a slaughterhouse. Kidneys underwent NMP at 37°C for 7 hours, with 4 different perfusion solutions (n = 5 per group). Group 1 consisted of red blood cells (RBCs) and a perfusion solution based on Williams’ Medium E. Group 2 consisted of RBCs, albumin and a balanced electrolyte composition. Group 3 contained RBCs and a medium based on a British clinical NMP solution. Group 4 contained RBCs and a medium used in 24-hour perfusion experiments. NMP flow patterns for solutions 1 and 2 were similar, solutions 3 and 4 showed lower but more stable flow rates. Thiobarbituric acid reactive substances were significantly higher in solution 1 and 4 compared to the other groups. Levels of injury marker N-acetyl-β-D glucosaminidase were significantly lower in solution 2 in comparison with solution 3 and 4. This study illustrates that the perfusate composition during NMP significantly impacts the measured perfusion and injury parameters and thus affects the interpretation of potential viability markers. Further research is required to investigate the individual influences of principal perfusate components to determine the most optimal conditions during NMP and eventually develop universal organ assessment criteria.
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Affiliation(s)
- Merel B. F. Pool
- Department of Surgery–Organ Donation and Transplantation, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- * E-mail:
| | - Tim L. Hamelink
- Department of Surgery–Organ Donation and Transplantation, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Harry van Goor
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Marius C. van den Heuvel
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Henri G. D. Leuvenink
- Department of Surgery–Organ Donation and Transplantation, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Cyril Moers
- Department of Surgery–Organ Donation and Transplantation, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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Zwart SR, Mulavara AP, Williams TJ, George K, Smith SM. The role of nutrition in space exploration: Implications for sensorimotor, cognition, behavior and the cerebral changes due to the exposure to radiation, altered gravity, and isolation/confinement hazards of spaceflight. Neurosci Biobehav Rev 2021; 127:307-331. [PMID: 33915203 DOI: 10.1016/j.neubiorev.2021.04.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 02/16/2021] [Accepted: 04/23/2021] [Indexed: 12/19/2022]
Abstract
Multi-year crewed space exploration missions are now on the horizon; therefore, it is important that we understand and mitigate the physiological effects of spaceflight. The spaceflight hazards-radiation, isolation, confinement, and altered gravity-have the potential to contribute to neuroinflammation and produce long-term cognitive and behavioral effects-while the fifth hazard, distance from earth, limits capabilities to mitigate these risks. Accumulated evidence suggests that nutrition has an important role in optimizing cognition and reducing the risk of neurodegenerative diseases caused by neuroinflammation. Here we review the nutritional perspective of how these spaceflight hazards affect the astronaut's brain, behavior, performance, and sensorimotor function. We also assess potential nutrient/nutritional countermeasures that could prevent or mitigate spaceflight risks and ensure that crewmembers remain healthy and perform well during their missions. Just as history has taught us the importance of nutrition in terrestrial exploration, we must understand the role of nutrition in the development and mitigation of spaceflight risks before humans can successfully explore beyond low-Earth orbit.
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Affiliation(s)
- Sara R Zwart
- Univerity of Texas Medical Branch, 301 University Blvd, Galveston, TX, 77555, USA.
| | | | - Thomas J Williams
- NASA Johnson Space Center, Mail Code SK3, 2101 NASA Parkway, Houston, TX, 77058, USA
| | - Kerry George
- KBR, 2400 E NASA Parkway, Houston, TX, 77058, USA
| | - Scott M Smith
- NASA Johnson Space Center, Mail Code SK3, 2101 NASA Parkway, Houston, TX, 77058, USA
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Gorenberg M, Agbarya A, Groshar D, Volovik I, Avitan O, Sukhotnik I. Novel nanotech antioxidant cocktail prevents medical diagnostic procedures ionizing radiation effects. Sci Rep 2021; 11:5315. [PMID: 33674660 PMCID: PMC7935885 DOI: 10.1038/s41598-021-84596-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 02/11/2021] [Indexed: 11/15/2022] Open
Abstract
Ionizing radiation (IR) exposure results in oxidative damage causing cytotoxic and genotoxic effects. Double-strand breaks (DSBs) are considered the most significant DNA lesions induced by ionizing radiation. The present study evaluates the radio protective effect of a novel antioxidant cocktail through quantification of DSB in peripheral blood lymphocytes (PBL) in vivo. The study included 16 consecutive patients who were divided into 2 groups, 6 patients received the novel antioxidant cocktail and 10 control patients. Blood samples were drawn from the patients undergoing bone scan, before the injection of the 99mTc MDP tracer and 2 h after the injection. Quantification of the IR damage was done by Immunofluorescence analysis of the phosphorylated histone, γ-H2AX, used to monitor DSB induction and repair in PBL. The radiation effect of the control group was measured by 2 variables, the average DBSs foci per nucleus and the percent of the DSB bearing cells in PBL. The findings showed a significant increase in the DSBs after isotope injection with an average increment of 0.29 ± 0.13 of foci/nucleus and 17.07% ± 7.68 more DSB bearing cells (p < 0.05). The cocktail treated group showed a lower difference average of − 2.79% ± 6.13 DSB bearing cells. A paired t-test revealed a significant difference between the groups (p < 0.005) confirming the cocktail’s protective effect. The novel anti-oxidant treatment decreases the oxidative stress-induced DNA damage and can be considered as a preventative treatment before radiation exposure.
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Affiliation(s)
- Miguel Gorenberg
- Department of Nuclear Medicine, Bnai-Zion Medical Center, Golomb 47, P.O.B 4940, Haifa, Israel. .,Technion-Israel Institute of Technology, The Ruth and Bruce Rappaport Faculty of Medicine, Haifa, Israel.
| | - Abed Agbarya
- Oncology Unit, Bnai-Zion Medical Center, Haifa, Israel
| | - David Groshar
- Department of Nuclear Medicine, Belinson Hospital, Rabin Medical Center, Petah Tikva, Israel
| | - Ilya Volovik
- Medical Imaging Department, Bnai-Zion Medical Center, Haifa, Israel
| | - Ofir Avitan
- Urology Department, Bnai-Zion Medical Center, Haifa, Israel
| | - Igor Sukhotnik
- Department of Pediatric Surgery, Dana-Dwek Children's Hospital, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
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Isolation, Purification and Characterization of Proteins in “Señorita” Banana (Musa acuminata (AAA) ‘Señorita’) Pulp with Bioactive Peptides Exhibiting Antihypertensive and Antioxidant Activities. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11052190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Banana is one of the most important crops, providing multiple benefits. Although it has been widely studied for its health benefits, little information can be found about its proteins. This study determined the antihypertensive and antioxidant activities of the crude, purified, and hydrolyzed protein extracts from ‘Señorita’ banana pulp. Crude proteins were extracted using Tris-HCl buffer and purified through ammonium sulfate precipitation, dialysis, and gel filtration chromatography. The protein content of the crude, partially purified, and purified extracts were found to be 167.32, 120.45, and 28.51 μg·mL−1, respectively, with major protein having an approximate molecular weight of 15 kDa. These extracts were then subjected to enzymatic hydrolysis for release of bioactive peptides prior to ACE inhibitory and antioxidant activities determination. Among these samples, the undigested crude extract had the highest ACE inhibitory activity (85.20%). There was also an observable increase in ACE inhibition of the digested samples with increased digestion time. Meanwhile, the 3-h and 4-h crude digests had the highest DPPH radical scavenging activity with 30.82% and 34.74%, respectively. These were not significantly different from the activity of the standard, ascorbic acid. A general decrease in DPPH radical scavenging activity of the samples was observed with increased digestion time. These observations were coherent with the in silico analysis of the putative major protein, lectin, which showed that its enzymatic hydrolysis releases ACE inhibitor and antioxidant peptides.
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Iqbal S, Shah MA, Rasul A, Saadullah M, Tabassum S, Ali S, Zafar M, Muhammad H, Uddin MS, Batiha GES, Vargas-De-La-Cruz C. Radioprotective Potential of Nutraceuticals and their Underlying Mechanism of Action. Anticancer Agents Med Chem 2021; 22:40-52. [PMID: 33622231 DOI: 10.2174/1871520621666210223101246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 12/08/2020] [Accepted: 12/14/2020] [Indexed: 11/22/2022]
Abstract
Radiations are an efficient treatment modality in cancer therapy. Besides the treatment effects of radiations, the ionizing radiations interact with biological systems and generate reactive oxygen species that interfere with the normal cellular process. Previous investigations of synthetic radioprotectors have shown less effectiveness, mainly owing to some limiting effects. The nutraceuticals act as efficient radioprotectors to protect the tissues from the deleterious effects of radiation. The main radioprotection mechanism of nutraceuticals is the scavenging of free radicals while other strategies are involved modulation of signaling transduction of pathways like MAPK (JNK, ERK1/2, ERK5, and P38), NF-kB, cytokines, and their protein regulatory genes expression. The current review is focused on the radioprotective effects of nutraceuticals including vitamin E, -C, organosulphur compounds, phenylpropanoids, and polysaccharides. These natural entities protect against radiation-induced DNA damage. The review mainly entails the antioxidant perspective and mechanism of action of their radioprotective activities on a molecular level, DNA repair pathway, anti-inflammation, immunomodulatory effects, the effect on cellular signaling pathways, and regeneration of hematopoietic cells.
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Affiliation(s)
- Shabnoor Iqbal
- Department of Zoology, Faculty of Life Sciences, Government College University Faisalabad. Pakistan
| | - Muhammad A Shah
- Department of Pharmacognosy, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad. Pakistan
| | - Azhar Rasul
- Department of Zoology, Faculty of Life Sciences, Government College University Faisalabad. Pakistan
| | - Malik Saadullah
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad. Pakistan
| | - Sobia Tabassum
- Department of Biological Sciences, International Islamic University, Islamabad. Pakistan
| | - Shujat Ali
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013. China
| | - Muhammad Zafar
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad. Pakistan
| | - Haji Muhammad
- Department of Chemistry, Federal Urdu University of Arts, Science & Technology, Karachi. Pakistan
| | - Md Sahab Uddin
- Department of Pharmacy, Southeast University, Dhaka. Pakistan
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, AlBeheira. Egypt
| | - Celia Vargas-De-La-Cruz
- Faculty of Pharmacy and Biochemistry, Academic Department of Pharmacology, Bromatology and Toxicology, Centro Latinoamericano de Enseñanza e Investigación en Bacteriología Alimentaria (CLEIBA), Universidad Nacional Mayor de San Marcos, Lima15001. Peru
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Zhang X, Chen X, Wang L, He C, Shi Z, Fu Q, Xu W, Zhang S, Hu S. Review of the Efficacy and Mechanisms of Traditional Chinese Medicines as a Therapeutic Option for Ionizing Radiation Induced Damage. Front Pharmacol 2021; 12:617559. [PMID: 33658941 PMCID: PMC7917257 DOI: 10.3389/fphar.2021.617559] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 01/11/2021] [Indexed: 12/16/2022] Open
Abstract
Ionizing radiation damage refers to acute, delayed, or chronic tissue damage associated with ionizing radiation. Specific or effective therapeutic options for systemic injuries induced by ionizing radiation have not been developed. Studies have shown that Chinese herbal Medicine or Chinese Herbal Prescription exhibit preventive properties against radiation damage. These medicines inhibit tissue injuries and promote repair with very minimal side effects. This study reviews traditional Chinese herbal medicines and prescriptions with radiation protective effects as well as their mechanisms of action. The information obtained will guide the development of alternative radioprotectants.
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Affiliation(s)
- Xiaomeng Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Xiaoying Chen
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Lei Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Changhao He
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Zhongyu Shi
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Qian Fu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Wenhui Xu
- Beijing Academy of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Shujing Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Sumin Hu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
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Anticancer natural medicines: An overview of cell signaling and other targets of anticancer phytochemicals. Eur J Pharmacol 2020; 888:173488. [DOI: 10.1016/j.ejphar.2020.173488] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 07/23/2020] [Accepted: 08/13/2020] [Indexed: 02/07/2023]
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Kumar A, Kumarchandra R, Rai R, Kumblekar V. Radiation mitigating activities of Psidium guajava L. against whole-body X-ray-induced damages in albino Wistar rat model. 3 Biotech 2020; 10:507. [PMID: 33178550 PMCID: PMC7642191 DOI: 10.1007/s13205-020-02484-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 10/13/2020] [Indexed: 11/25/2022] Open
Abstract
In the present study, we investigated radiation mitigating activities of Psidium guajava L. (P. guajava) against whole-body X- ray induced damages in albino Wistar rat model. The animals were orally administered with 200 mg/kg bodyweight of hydroalcoholic leaf extract of P. guajava for five consecutive days and on the fifth day, after the last dose of extract administration, animals were exposed to 4 Gy of X-rays. Rats were sacrificed 24 h post X-ray irradiation. The radiomitigating activity of the herb extract was assessed by micronucleus assay, histopathology of the small intestine and hematological parameters. Hepatic cyclooxygenase-2 (COX-2), interleukin-6 (IL-6) and interleukin -10 (IL-10) levels were assayed to validate the anti-inflammatory property. Biochemical estimations were also performed in RBC lysates to corroborate antioxidant properties in the leaf extract. HPLC analysis of crude extract confirmed the presence of standard flavonoid quercetin. Our results indicated that radiation elevated COX-2, IL-6 and decreased IL-10 levels and also induced micronucleus formation in polychromatic erythrocytes, simultaneously impairing hematological parameters along with erythrocyte antioxidants. The animals pre-treated with P. guajava exhibited a significant decrease in the COX-2 (P ≤ 0.01), IL-6 levels (P ≤ 0.05) and also displayed significant increase in the hepatic IL-10 levels (P ≤ 0.01). Pre-treatment with plant extract improved antioxidant enzyme activities, hematological parameters and reduced the intestinal damage by recovering the architecture of the small intestine. Moreover, extract also rendered protection against radiation induced DNA damage, as evidenced by the significant (P ≤ 0.01) decrease in the percentage of radiation-induced micronucleus in polychromatic erythrocytes. Furthermore, the herb extract treatment increased radiation LD50/30 from 6.6 Gy to 9.0 Gy, offering a dose reduction factor (DRF) of 1.36. Our findings for the first time propose the beneficial use of P. guajava as a radioprotector against X-ray induced damage.
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Affiliation(s)
- Amith Kumar
- Department of Biochemistry, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka India
| | - Reshma Kumarchandra
- Department of Biochemistry, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka India
| | - Rajalakshmi Rai
- Department of Anatomy, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka India
| | - Vasavi Kumblekar
- Department of Biochemistry, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka India
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Jiménez E, Pimentel E, Cruces MP, Amaya-Chávez A. Radioprotective effect of chloropyllin, protoporphyrin-IX and bilirubin compared with amifostine® in Drosophila melanogaster. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 80:103464. [PMID: 32750419 DOI: 10.1016/j.etap.2020.103464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 06/11/2023]
Abstract
The identification of substances that prevent or minimize the detrimental effects of ionizing radiation is an essential undertaking. The aim of this paper was to evaluate and compare the radioprotective potential of chlorophyllin, protoporphyrin and bilirubin, with amifostine®, an US Food & Drug Administration approved radioprotector Using the somatic mutation and recombination assay in the Drosophila melanogaster wing, it was found that pretreatment (1-9 h) with any of the porphyrins or amifostine® alone, did not affect the larva-adult viability or the basal frequency of mutation. However, they were associated with significant reductions in frequency of somatic mutation and recombination compared with the gamma-irradiated (20 Gy) control as follows: bilirubin (69.3 %)> chlorophyllin (40.0 %)> protoporphyrin (39.0 %)> amifostine® (19.7 %). Bilirubin also caused a 16 % increase in larva-adult viability with 3 h of pretreatment respect to percentage induced in 20 Gy control group. Whilst amifostine® was associated with lower genetic damage after pre-treatment of 1 and 3 h, this did not attain significance. These findings suggest that the tested porphyrins may have some potential as radioprotectant agents.
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Affiliation(s)
- E Jiménez
- Instituto Nacional de Investigaciones Nucleares, Carretera México-Toluca s/n, La Marquesa, Ocoyoacac, Edo. de México, C.P. 52750, Mexico
| | - E Pimentel
- Instituto Nacional de Investigaciones Nucleares, Carretera México-Toluca s/n, La Marquesa, Ocoyoacac, Edo. de México, C.P. 52750, Mexico.
| | - M P Cruces
- Instituto Nacional de Investigaciones Nucleares, Carretera México-Toluca s/n, La Marquesa, Ocoyoacac, Edo. de México, C.P. 52750, Mexico
| | - A Amaya-Chávez
- Facultad de Química, Universidad Autónoma del Estado de México, Toluca, Mexico
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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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Wang L, Wang Z, Cao Y, Lu W, Kuang L, Hua D. Strategy for Highly Efficient Radioprotection by a Selenium-Containing Polymeric Drug with Low Toxicity and Long Circulation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:44534-44540. [PMID: 32902946 DOI: 10.1021/acsami.0c14000] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Because of the rapid development and extensive use of nuclear technology, ionizing radiation has become a large threat to human health. Until now, there has been no practicable radioprotector for routine clinical application because of severe side effects, high toxicity, and short elimination half-life. Herein, we develop a highly efficient radioprotection strategy using a selenium-containing polymeric drug with low toxicity and long circulation by removing reactive oxygen species (ROSs). The selenium-containing polymeric drug is prepared by copolymerization of vinyl phenylselenides (VSe) and N-(2-hydroxyethyl) acrylamide (HEA). The in vitro radioprotective efficacy of the polymeric drug is increased by 40% with lower cytotoxicity compared with the small-molecular VSe monomer. Importantly, the radioprotection activity of the polymeric drug shows more remarkable effects both in cell culture and mice model compared to the commercially available drug ebselen and also exhibits a much longer retention time in blood (half-life ∼ 10 h). This work may unfold a new area for highly efficient radioprotection by polymeric drugs instead of small-molecular agents.
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Affiliation(s)
- Lu Wang
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou 215123, China
| | - Ziyu Wang
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou 215123, China
| | - Yu Cao
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou 215123, China
| | - Weihong Lu
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou 215123, China
| | - Liangju Kuang
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Daoben Hua
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou 215123, China
- Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou 215123, China
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DiCarlo AL, Perez Horta Z, Rios CI, Satyamitra MM, Taliaferro LP, Cassatt DR. Study logistics that can impact medical countermeasure efficacy testing in mouse models of radiation injury. Int J Radiat Biol 2020; 97:S151-S167. [PMID: 32909878 PMCID: PMC7987915 DOI: 10.1080/09553002.2020.1820599] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 09/05/2019] [Accepted: 10/01/2019] [Indexed: 12/02/2022]
Abstract
PURPOSE To address confounding issues that have been noted in planning and conducting studies to identify biomarkers of radiation injury, develop animal models to simulate these injuries, and test potential medical countermeasures to mitigate/treat damage caused by radiation exposure. METHODS The authors completed an intensive literature search to address several key areas that should be considered before embarking on studies to assess efficacy of medical countermeasure approaches in mouse models of radiation injury. These considerations include: (1) study variables; (2) animal selection criteria; (3) animal husbandry; (4) medical management; and (5) radiation attributes. RESULTS It is important to select mouse strains that are capable of responding to the selected radiation exposure (e.g. genetic predispositions might influence radiation sensitivity and proclivity to certain phenotypes of radiation injury), and that also react in a manner similar to humans. Gender, vendor, age, weight, and even seasonal variations are all important factors to consider. In addition, the housing and husbandry of the animals (i.e. feed, environment, handling, time of day of irradiation and animal restraint), as well as the medical management provided (e.g. use of acidified water, antibiotics, routes of administration of drugs, consideration of animal numbers, and euthanasia criteria) should all be addressed. Finally, the radiation exposure itself should be tightly controlled, by ensuring a full understanding and reporting of the radiation source, dose and dose rate, shielding and geometry of exposure, while also providing accurate dosimetry. It is important to understand how all the above factors contribute to the development of radiation dose response curves for a given animal facility with a well-defined murine model. CONCLUSIONS Many potential confounders that could impact the outcomes of studies to assess efficacy of a medical countermeasure for radiation-induced injuries are addressed, and recommendations are made to assist investigators in carrying out research that is robust, reproducible, and accurate.
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Affiliation(s)
- Andrea L DiCarlo
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, MD, USA
| | - Zulmarie Perez Horta
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, MD, USA
| | - Carmen I Rios
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, MD, USA
| | - Merriline M Satyamitra
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, MD, USA
| | - Lanyn P Taliaferro
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, MD, USA
| | - David R Cassatt
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, MD, USA
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Aygün B, Alaylar B, Turhan K, Şakar E, Karadayı M, Al-Sayyed MIA, Pelit E, Güllüce M, Karabulut A, Turgut Z, Alım B. Investigation of neutron and gamma radiation protective characteristics of synthesized quinoline derivatives. Int J Radiat Biol 2020; 96:1423-1434. [PMID: 32813583 DOI: 10.1080/09553002.2020.1811421] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
PURPOSE Quinoline is formed by various natural compounds, such as alkaloids from the cinchona plant, which exhibit various biological activities, and is an important building material for the development of new drugs. Quinoline can be used in anti-radiation drug development but radiation interaction properties must be determined. MATERIAL AND METHODS In this study, six types of synthesized quinoline derivatives were used. Fast neutron removal cross-section, mean free path, half value layer and transmission number were theoretically determined by using GEometry ANd Tracking 4 and FLUktuierende KAskade simulation codes for neutron shielding. Neutron dose absorption rates were determined using the 241Am-Be fast neutron source and the Canberra NP series portable BF3 gas proportional neutron detector. Gamma radiation shielding parameters were determined by using WinXCom and PSY-X/PSD software. Additionally, the genotoxic potentials of the derivatives were assessed by using the Ames/Salmonella bacterial reversion assay. RESULTS AND CONCLUSIONS Neutron shielding parameters such as removal cross-section, mean free path, half value layer and transmission number were theoretically determined for fast neutrons. To determine neutron absorption capacity of quinoline derivatives, neutron absorption, experiments were conducted. In addition, gamma radiation shielding parameters were calculated such as the mean free path (MFP), mass attenuation coefficient (µt), half value thickness layer (HVL) and effective atomic number (Zeff) in the energy range of 0.015-15 MeV. The results of the all quinoline derivatives have excellent fast neutron shielding power compared to ordinary concrete. In addition, all quinoline derivatives have been found to have the capacity to attenuate gamma radiation. Moreover, they absorb well in both types of radiation, do not cause secondary radiation, and they are genotoxically safe at the tested concentrations. This study has demonstrated that these products can be used as active ingredients for a drug to be developed against radiation.
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Affiliation(s)
- Bünyamin Aygün
- Department of Electronics and Automation, Vocational School, Agri Ibrahim Cecen University, Agri, Turkey
| | - Burak Alaylar
- Department of Molecular Biology and Genetics, Faculty of Science and Arts, Agri Ibrahim Cecen University, Agri, Turkey
| | - Kadir Turhan
- Department of Chemistry, Faculty of Art and Sciences, Yildiz Technical University, İstanbul, Turkey
| | - Erdem Şakar
- Department of Physics, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Mehmet Karadayı
- Department of Biology, Faculty of Science, Atatürk University, Erzurum, Turkey
| | | | - Emel Pelit
- Department of Chemistry, Faculty of Art and Sciences, Kirklareli University, Kirklareli, Turkey
| | - Medine Güllüce
- Department of Biology, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Abdulhalik Karabulut
- Department of Physics, Faculty of Science, Atatürk University, Erzurum, Turkey.,Agri Ibrahim Cecen University, Agri, Turkey
| | - Zuhal Turgut
- Department of Chemistry, Faculty of Art and Sciences, Yildiz Technical University, İstanbul, Turkey
| | - Bünyamin Alım
- Department of Electricity and Energy, Technical Scientific Vocational School, Bayburt University, Bayburt, Turkey
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Vieira AJ, Gaspar EM, Santos PM. Mechanisms of potential antioxidant activity of caffeine. Radiat Phys Chem Oxf Engl 1993 2020. [DOI: 10.1016/j.radphyschem.2020.108968] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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S Dessoky E, Ismail IA, El-Hallous EI, F Alsanie W. Protective Role of <i>Juniperus phoenicea</i> L. Leaves Extract against Gamma-irradiation-induced Oxidative Stress. Pak J Biol Sci 2020; 23:922-930. [PMID: 32700840 DOI: 10.3923/pjbs.2020.922.930] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND OBJECTIVE Radiation exposure can cause several harmful effects in biological systems due to free radical production. Several antioxidants have been tested as potential hepatoprotective agents against ionizing radiation as they lower oxidative stress in normal cells induced by Reactive Oxygen Species (ROS). The present study was conducted to evaluate the possible ameliorative effects of Juniperus phoenicea L. MATERIALS AND METHODS Aqueous leaves extract on different biochemical and histopathological parameters against whole body gamma-irradiation-induced oxidative stress, organ dysfunction and metabolic disturbances in experimental Swiss Albino rats. After a single dose of gamma-radiation (6 Gy), there was a significant reduction in albumin, total protein and globulin levels and a significant increase in the liver enzymes (ALT, AST, ALP and GGT) and lipid profile parameters (cholesterol, triglyceride, HDL-cholesterol and LDL-cholesterol) in gamma-irradiated rats unlike in normal controls. RESULTS The gamma-irradiated rats pre-treated with J. phoenicea leaf extracts, however, showed a significant increase in albumin, total protein and globulin levels and a significant reduction in liver enzymes and lipid profile parameters as opposed to the untreated ones. The gamma-irradiated rats showed toxic changes in the liver, whereas, the rats pre-treated with J. phoenicea leaves extract demonstrated a protective effect. Additionally, gamma- irradiation caused myocardial degenerative changes, interstitial edema between muscle fibers, necrosis and inflammatory cells infiltration and fibrotic and cellular damages to the heart, but J. phoenicea leaves extract were found to ameliorate the gamma-irradiation-induced changes in the heart. CONCLUSION The results suggested that treatment with J. phoenicea leaves extract is possibly safe and can ameliorate gamma-irradiation-induced oxidative damage and tissue injury in rats. The leaves of J. phoenicea could serve as a potential source of therapeutic antioxidants.
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The Radioprotective Effect of Procaine and Procaine-Derived Product Gerovital H3 in Lymphocytes from Young and Aged Individuals. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:3580934. [PMID: 32685092 PMCID: PMC7334788 DOI: 10.1155/2020/3580934] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 05/05/2020] [Accepted: 05/08/2020] [Indexed: 01/08/2023]
Abstract
Ionizing radiation induces genomic instability in living organisms, and several studies reported an ageing-dependent radiosensitivity. Chemical compounds, such as scavengers, radioprotectors, and modifiers, contribute to reducing the radiation-associated toxicity. These compounds are often antioxidants, and therefore, in order to be effective, they must be present before or during exposure to radiation. However, not all antioxidants provide radioprotection. In this study, we investigated the effects of procaine and of a procaine-based product Gerovital H3 (GH3) on the formation of endogenous and X-ray-induced DNA strand breaks in peripheral blood mononuclear cells (PBMCs) isolated from young and elderly individuals. Interestingly, GH3 showed the strongest radioprotective effects in PBMCs from young subjects, while procaine reduced the endogenous amount of DNA strand breaks more pronounced in aged individuals. Both procaine and GH3 inhibited lipid peroxidation, but procaine was more effective in inhibiting mitochondria free radicals' generation, while GH3 showed a higher antioxidant action on macrophage-induced low-density lipoprotein oxidation. Our findings provide new insights into the mechanisms underlying the distinct effects of procaine and GH3 on DNA damage.
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Torun N, Muratli A, Serim BD, Ergulen A, Altun GD. Radioprotective Effects of Amifostine, L-Carnitine and Vitamin E in Preventing Early Salivary Gland Injury due to Radioactive Iodine Treatment. Curr Med Imaging 2020; 15:395-404. [PMID: 31989909 DOI: 10.2174/1573405614666180314150808] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 02/01/2018] [Accepted: 03/03/2018] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Standard treatment of differentiated thyroid cancer includes total thyroidectomy and high-dose Radioactive Iodine Therapy (RIT) for ablation of remnant thyroid tissue. When administered systemically, RIT can cause radiation-induced damage in non-targeted normal tissues. The aim of the present study was to compare the protective effects of amifostine (AMI), LCarnitine (LC), and Vitamin E (EVIT) against high dose radioactive iodine treatment induced Salivary Gland (SG) damage using SG scintigraphy and histopathological examination. METHODS Forty adult guinea pigs were studied. Twenty guinea pigs receive 555-660 MBq 131Iodine intraperitoneally (IP) to ablate the thyroid and impair the parenchymal function of the SGs. The animals were divided into eight groups as follows: (1) Group 1 (control): 1 mL IP PS (physiological saline); (2) Group 2: single dose of 200 mg/kg IP AMI one hour prior to 1 mL IP PS; (3) Group 3: 200 mg/kg IP LC and 1 mL IP PS for 10 days; (4) Group 4: 40 mg/kg intramuscular (IM) EVITand 1 mL IP PS for 10 days; (5) Group 5: IP RIT after premedication; (6) Group 6: Single dose of 200 mg/kg IP AMI one hour prior to RIT and IP RIT after premedication; (7) Group 7: IP RIT after premedication and 200 mg/kg IP LC for 10 days starting one day before RIT; and (8) Group 8: IP RIT after premedication and 40 mg/kg IM EVIT for 10 days starting one day before RIT. Scintigraphy was performed 1 month after treatment. SGs were examined by light microscopy and a histopathological scoring system was used to assess the degree of SG damage. RESULTS There were significant differences in the body weight and thyroid hormone levels between the groups after treatment. CONCLUSION The individual use of AMI, LC and EVIT for radioprotection yield different levels of protection against radioactive iodine treatment injury in SGs; however, none of the agents could provide absolute protection at the doses administered in this experimental model.
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Affiliation(s)
- Nese Torun
- Department of Nuclear Medicine, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - Asli Muratli
- Department of Pathology, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - Burcu Dirlik Serim
- Department of Nuclear Medicine, Cardiology Institute, İstanbul University, Istanbul, Turkey
| | - Alev Ergulen
- Department of Nuclear Medicine, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Gulay Durmus Altun
- Department of Nuclear Medicine, Faculty of Medicine, Trakya University, Edirne, Turkey
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Role of Diosmin in protection against the oxidative stress induced damage by gamma-radiation in Wistar albino rats. Regul Toxicol Pharmacol 2020; 113:104622. [DOI: 10.1016/j.yrtph.2020.104622] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/02/2020] [Accepted: 02/18/2020] [Indexed: 01/04/2023]
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Abstract
The effects of elevated levels of radiation contribute to the instability of pharmaceutical formulations in space compared to those on earth. Existing technologies are ineffective at maintaining the therapeutic efficacies of drugs in space. Thus, there is an urgent need to develop novel space-hardy formulations for preserving the stability and efficacy of drug formulations. This work aims to develop a novel approach for the protection of space pharmaceutical drug molecules from the radiation-induced damage to help extend or at least preserve their structural integrity and potency. To achieve this, free radical scavenging antioxidant, Trolox was conjugated on the surface of poly-lactic-co-glycolic acid (PLGA) nanoparticles for the protection of a candidate drug, melatonin that is used as a sleep aid medication in International Space Station (ISS). Melatonin-PLGA-PLL-Trolox nanoparticle as named as PolyRad was synthesized employing single oil in water (o/w) emulsion solvent evaporation method. PolyRad is spherical in shape and has an average diameter of ~600 nm with a low polydispersity index of 0.2. PolyRad and free melatonin (control) were irradiated by UV light after being exposed to a strong oxidant, hydrogen peroxide (H2O2). Bare melatonin lost ~80% of the active structure of the drug following irradiation with UV light or treatment with H2O2. In contrast, PolyRad protected >80% of the active structure of melatonin. The ability of PolyRad to protect melatonin structure was also carried out using 0, 1, 5 and 10 Gy gamma radiation. Gamma irradiation showed >98% active structures of melatonin encapsulated in PolyRads. Drug release and effectiveness of melatonin using PolyRad were evaluated on human umbilical vein endothelial cells (HUVEC) in vitro. Non-irradiated PolyRad demonstrated maximum drug release of ~70% after 72 h, while UV-irradiated and H2O2-treated PolyRad showed a maximum drug release of ~85%. Cytotoxicity of melatonin was carried out using both live/dead and MTT assays. Melatonin, non-radiated PolyRad and irradiated PolyRad inhibited the viability of HUVEC in a dose-dependent manner. Cell viability of melatonin, PolyRad alone without melatonin (PolyRad carrier control), non-radiated PolyRad, and irradiated PolyRad were ~98, 87, 75 and 70%, respectively at a concentration \documentclass[12pt]{minimal}
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\begin{document}$$10\mu g/{ml}$$\end{document}10μg/ml). Taken together, PolyRad nanoparticle provides an attractive formulation platform for preventing damage to pharmaceutical drugs in potential space mission applications.
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Koohian F, Shahbazi-Gahrouei D, Koohiyan M, Shanei A. The Radioprotective Effect of Ascorbic Acid and Kefir against Genotoxicity Induced by Exposure in Mice Blood Lymphocytes. Nutr Cancer 2020; 73:534-540. [PMID: 32351133 DOI: 10.1080/01635581.2020.1758169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The aim of this research was to determine how coadministration of ascorbic acid prior to the beginning of X-irradiation influences the lymphocyte DNA damage and also if the kefir supplementation to irradiated mice may alter the recovery procedure of lymphocyte genetic material injury. Following treatment of animals with these agents, the whole-body of mice were irradiated to 6 MV X-rays, then genotoxicity activity was investigated by comet assay. Our results show that the Total Comet Score (TCS) value was 1.39 and 1.5 fold less in the kefir and ascorbic acid groups respectively the following irradiation than in the irradiated mice only. Coadministration of ascorbic acid and kefir with 2 h, before relatively to 2 Gy radiation decreased DNA damage in lymphocyte blood cells. The antioxidant strength of ascorbic acid and kefir were investigated by the study of the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging properties and also ferric reducing antioxidant power (FRAP) assay. Our results revealed that ascorbic acid and kefir show strong antioxidant activity by these methods. According to these results, it seems that ascorbic acid and kefir, as a free radical scavenging capacitiy, protect animal lymphocyte blood cells from radiation-induced DNA injury and genotoxicity.
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Affiliation(s)
- Farideh Koohian
- Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Daryoush Shahbazi-Gahrouei
- Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahbobeh Koohiyan
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ahmad Shanei
- Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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RAZAVI MEHDI, PRIMAVERA ROSITA, KEVADIYA BHAVESHD, WANG JING, BUCHWALD PETER, THAKOR AVNESHS. A Collagen Based Cryogel Bioscaffold that Generates Oxygen for Islet Transplantation. ADVANCED FUNCTIONAL MATERIALS 2020; 30:1902463. [PMID: 33071709 PMCID: PMC7567341 DOI: 10.1002/adfm.201902463] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Indexed: 05/24/2023]
Abstract
The aim of this work was to develop, characterize and test a novel 3D bioscaffold matrix which can accommodate pancreatic islets and provide them with a continuous, controlled and steady source of oxygen to prevent hypoxia-induced damage following transplantation. Hence, we made a collagen based cryogel bioscaffold which incorporated calcium peroxide (CPO) into its matrix. The optimal concentration of CPO integrated into bioscaffolds was 0.25wt.% and this generated oxygen at 0.21±0.02mM/day (day 1), 0.19±0.01mM/day (day 6), 0.13±0.03mM/day (day 14), and 0.14±0.02mM/day (day 21). Accordingly, islets seeded into cryogel-CPO bioscaffolds had a significantly higher viability and function compared to islets seeded into cryogel alone bioscaffolds or islets cultured alone on traditional cell culture plates; these findings were supported by data from quantitative computational modelling. When syngeneic islets were transplanted into the epididymal fat pad (EFP) of diabetic mice, our cryogel-0.25wt.%CPO bioscaffold improved islet function with diabetic animals re-establishing glycemic control. Mice transplanted with cryogel-0.25wt.%CPO bioscaffolds showed faster responses to intraperitoneal glucose injections and had a higher level of insulin content in their EFP compared to those transplanted with islets alone (P<0.05). Biodegradability studies predicted that our cryogel-CPO bioscaffolds will have long-lasting biostability for approximately 5 years (biodegradation rate: 16.00±0.65%/year). Long term implantation studies (i.e. 6 months) showed that our cryogel-CPO bioscaffold is biocompatible and integrated into the surrounding fat tissue with minimal adverse tissue reaction; this was further supported by no change in blood parameters (i.e. electrolyte, metabolic, chemistry and liver panels). Our novel oxygen-generating bioscaffold (i.e. cryogel-0.25wt.%CPO) therefore provides a biostable and biocompatible 3D microenvironment for islets which can facilitate islet survival and function at extra-hepatic sites of transplantation.
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Affiliation(s)
- MEHDI RAZAVI
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, Department of Radiology, Palo Alto, California 94304, USA
- Biionix™ (Bionic Materials, Implants & Interfaces) Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, Florida 32827, USA
| | - ROSITA PRIMAVERA
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, Department of Radiology, Palo Alto, California 94304, USA
| | - BHAVESH D KEVADIYA
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, Department of Radiology, Palo Alto, California 94304, USA
| | - JING WANG
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, Department of Radiology, Palo Alto, California 94304, USA
| | - PETER BUCHWALD
- Diabetes Research Institute, Miller School of Medicine, University of Miami, Miami, Florida 33136, USA
| | - AVNESH S THAKOR
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, Department of Radiology, Palo Alto, California 94304, USA
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