1
|
Takimoto N, Ishii Y, Mitsumoto T, Takasu S, Namiki M, Shibutani M, Ogawa K. Formation of hepatocyte cytoplasmic inclusions and their contribution to methylcarbamate-induced hepatocarcinogenesis in F344 rats. Toxicol Sci 2024; 198:40-49. [PMID: 38230821 DOI: 10.1093/toxsci/kfad131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024] Open
Abstract
Methylcarbamate (MC), a reaction product between dimethyl dicarbonate and ammonia or ammonium ion, is a potent hepatocarcinogen in F344 rats. Various genotoxicity tests have shown negative results for MC. Although previous studies have described the effects of MC on the liver, including the formation of characteristic basophilic cytoplasmic inclusions (CIs) in hepatocytes, the toxicological significance of CIs and their involvement in hepatocarcinogenesis remain unclear. In the current study, to elucidate the mechanisms of MC hepatocarcinogenesis, we examined hepatotoxicity and genotoxicity after 4 weeks of administration of MC using gpt delta rats with an F344 genetic background as a reporter gene transgenic animal model. Histopathologically, single-cell necrosis, karyomegaly, and the formation of CIs positive for Feulgen staining were observed in hepatocytes at the carcinogenic dose, demonstrating the hepatotoxicity of MC. CIs were also detected as large micronuclei in liver micronucleus tests but not in the bone marrow, suggesting that MC could cause chromosomal instability specifically in the livers of rats. Reporter gene mutation assays demonstrated that MC did not induce mutagenicity even in the liver. Immunofluorescence analyses revealed that CIs exhibited loss of nuclear envelope integrity, increased heterochromatinization, and accumulation of DNA damage. An increase in liver STING protein levels suggested an effect on the cyclic GMP-AMP synthase/stimulator of interferon genes innate immune pathway. Overall, these data demonstrated the possible occurrence of chromothripsis-like chromosomal rearrangements via CIs. Thus, the formation of CIs could be a crucial event in the early stage of MC-induced hepatocarcinogenesis in F344 rats.
Collapse
Affiliation(s)
- Norifumi Takimoto
- Division of Pathology, National Institute of Health Sciences, Kawasaki-shi, Kanagawa 210-9501, Japan
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo 183-8509, Japan
| | - Yuji Ishii
- Division of Pathology, National Institute of Health Sciences, Kawasaki-shi, Kanagawa 210-9501, Japan
| | - Tatsuya Mitsumoto
- Division of Pathology, National Institute of Health Sciences, Kawasaki-shi, Kanagawa 210-9501, Japan
- Faculty of Animal Health Technology, Yamazaki University of Animal Health Technology, Hachioji, Tokyo 192-0364, Japan
| | - Shinji Takasu
- Division of Pathology, National Institute of Health Sciences, Kawasaki-shi, Kanagawa 210-9501, Japan
| | - Moeka Namiki
- Division of Pathology, National Institute of Health Sciences, Kawasaki-shi, Kanagawa 210-9501, Japan
| | - Makoto Shibutani
- Laboratory of Veterinary Pathology, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo 183-8509, Japan
| | - Kumiko Ogawa
- Division of Pathology, National Institute of Health Sciences, Kawasaki-shi, Kanagawa 210-9501, Japan
| |
Collapse
|
2
|
Pereira AR, Campos AS, Matos MJ, Maistro EL. Study of the DNA damage and cell death in human peripheral blood mononuclear and HepG2/C3A cells exposed to the synthetic 3-(3-hydroxyphenyl)-7-hydroxycoumarin. J Toxicol Environ Health A 2024; 87:33-46. [PMID: 37886814 DOI: 10.1080/15287394.2023.2274331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Hydroxycoumarins are an important source of biologically active compounds. Previous studies have shown that the number and position of the hydroxyl substituents in the scaffold play an important role for the observed biological activity. In the present study, 3-(3-hydroxyphenyl)-7-hydroxycoumarin was synthesized, and potential cytogenotoxic effects determined in human HepG2/C3A cells displaying phase 1 and phase 2 enzymes (metabolizing cell ability) and compared to human peripheral blood mononuclear cells (PBMC) without xenobiotics metabolizing capacity. Cell viability was determined with concentrations between 0.01 and 10 µg/ml of 3-(3-hydroxyphenyl)-7-hydroxycoumarin using MTT (3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide) and trypan blue tests. Genotoxicity was determined utilizing the comet assay, and the clastogenic/aneugenic potential employing the micronucleus (MN) test. The results of the in vitro cytotoxicity assays showed a significant decrease in cell viability of PBMC following exposure to 10 µg/ml concentration of the studied compound after 48 and 72 hr. Comet assay observations noted significant DNA damage in PBMC after 4 hr treatment. No marked cytogenotoxic effects were found in HepG2/C3A cells. No chromosomal mutations were observed in both cell lines. It is important to note that 3-(3-hydroxyphenyl)-7-hydroxycoumarin may exert beneficial pharmacological actions at the low micromolar range and with half-life less than 24 hr. Therefore, the results obtained encourage the continuation of studies on this new molecule for medicinal purposes, but its potential toxicity at higher concentrations and longer exposure times needs to be investigated in further studies.
Collapse
Affiliation(s)
- André Rogerio Pereira
- Faculty of Philosophy and Sciences, Speech and Hearing Therapy Department, São Paulo State University - UNESP, Marília, SP, Brazil
| | - Ashley Silva Campos
- Faculty of Philosophy and Sciences, Speech and Hearing Therapy Department, São Paulo State University - UNESP, Marília, SP, Brazil
| | - Maria João Matos
- Departamento de Química Orgánica, Facultade de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela, España
| | - Edson Luis Maistro
- Faculty of Philosophy and Sciences, Speech and Hearing Therapy Department, São Paulo State University - UNESP, Marília, SP, Brazil
| |
Collapse
|
3
|
Silva CA, Véras JH, Ventura JA, de Melo Bisneto AV, de Oliveira MG, Cardoso Bailão EFL, E Silva CR, Cardoso CG, da Costa Santos S, Chen-Chen L. Chemopreventive effect and induction of DNA repair by oenothein B ellagitannin isolated from leaves of Eugenia uniflora in Swiss Webster treated mice. J Toxicol Environ Health A 2023; 86:929-941. [PMID: 37728073 DOI: 10.1080/15287394.2023.2259425] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
Oenothein B (OeB) is a dimeric ellagitannin with potent antioxidative, antitumor, immunomodulatory, and anti-inflammatory properties. Despite the promising activities of OeB, studies examining the genotoxic or protective effects of this ellagitannin on DNA are scarce. Therefore, to further comprehensively elucidate the chemopreventive profile of OeB, the aim of this study was to evaluate the mutagenic and antimutagenic actions of OeB using Salmonella typhimurium strains with the Ames test. The micronucleus (MN) test and comet assay were used to assess the anticytotoxic and antigenotoxic effects of OeB on mouse bone marrow cells following differing treatments (pre-, co-, and post-treatment) in response to cyclophosphamide (CPA)-induced DNA damage. In addition, histopathological analyses were performed to assess liver and kidney tissues of Swiss Webster treated mice. Our results did not detect mutagenic or antimutagenic activity attributed to OeB at any concentration in the Ames test. Regarding the MN test, data showed that this ellagitannin exerted antigenotoxic and anticytotoxic effects against CPA-induced DNA damage under all treatment conditions. However, no anticytotoxic action was observed in MN test after pre-treatment with the highest doses of OeB. In addition, OeB demonstrated antigenotoxic effects in the comet assay for all treatments. Histopathological analyses indicated that OeB attenuated the toxic effects of CPA in mouse liver and kidneys. These findings suggest that OeB exerted a chemoprotective effect following pre- and co-treatments and a DNA repair action in post-treatment experiments. Our findings indicate that OeB protects DNA against CPA-induced damaging agents and induces post-damage DNA repair.
Collapse
Affiliation(s)
| | | | - Joyce Aves Ventura
- Institute of Biological Sciences, Federal University of Goiás, Goiânia-GO, Brazil
| | | | | | | | | | - Clever Gomes Cardoso
- Institute of Biological Sciences, Federal University of Goiás, Goiânia-GO, Brazil
| | | | - Lee Chen-Chen
- Institute of Biological Sciences, Federal University of Goiás, Goiânia-GO, Brazil
| |
Collapse
|
4
|
Eldemir Okay Y, Kenger İH, Yildiz H, Hüsunet MT, Dönbak L, Kayraldiz A. In vitro cytogenotoxic evaluation of aripiprazole on human peripheral lymphocytes and computational molecular docking analysis. Drug Chem Toxicol 2023; 46:1147-1153. [PMID: 36278274 DOI: 10.1080/01480545.2022.2135008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/23/2022] [Accepted: 06/08/2022] [Indexed: 11/03/2022]
Abstract
Two different drug groups, typical (classic) and atypical (new), are used in the treatment of schizophrenia. Aripiprazole, an atypical antipsychotic chemical, is the active ingredient of the drug Abilify. This study was conducted to determine the possible genotoxic effect of aripiprazole. For this purpose, four different doses of aripiprazole (5; 10; 20, and 40 µg/mL) were examined with Chromosome Abnormality (CA), Sister Chromatid Exchange (SCE), Micronucleus (MN) tests. Based on these tests, Proliferation Index (PI), Percent Abnormal Cells (AC), Mitotic Index (MI), Micronuclear Binuclear Cell (MNBN), and Nuclear Division Index (NDI) levels were determined in human peripheral lymphocytes treated for 24 and 48 hours. Also, to determine possible binding sites of Aripiprazole on B-DNA molecular docking analysis was performed using AutoDock 4.0 (B-DNA dodecamer, PDB code: 1BNA). Aripiprazole binds to B-DNA with a very significant free binding energy (-11.88 Kcal/mol). According to our study, aripiprazole did not significantly change SCE, CA, AC percentage, MN frequencies when compared with control. According to these results, aripiprazole does not have a genotoxic effect. At the same time, no significant change was observed in the PI, MI, and NDI frequencies when compared with the control. In line with these results, it was observed that the use of aripiprazole in the treatment of schizophrenia did not pose any acute genotoxic and cytotoxic risk.
Collapse
Affiliation(s)
- Yasemin Eldemir Okay
- Faculty of Science, Department of Biology, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey
| | - İbrahim Halil Kenger
- Faculty of Medicine, Department of Medical Genetics, Gaziantep Islam, Science, and Technology University, Gaziantep, Turkey
| | - Hamit Yildiz
- Faculty of Medicine, Department of Internal Medicine, Gaziantep University, Gaziantep, Turkey
| | - Mehmet Tahir Hüsunet
- Faculty of Medicine, Department of Medical Genetics, Gaziantep Islam, Science, and Technology University, Gaziantep, Turkey
- Faculty of Science and Literature, Department of Biology, Cukurova University, Adana, Turkey
| | - Lale Dönbak
- Faculty of Science, Department of Biology, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey
| | - Ahmet Kayraldiz
- Faculty of Science, Department of Biology, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey
| |
Collapse
|
5
|
Bakan B, Oltulu F, Yıldırım Y, Yavaşoğlu A, Akgöl S, Karabay Yavaşoğlu NÜ. L-glutamic acid-g-poly hydroxyethyl methacrylate nanoparticles: acute and sub-acute toxicity and biodistribution potential in mice. Arh Hig Rada Toksikol 2023; 74:207-217. [PMID: 37791671 PMCID: PMC10549881 DOI: 10.2478/aiht-2023-74-3768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/01/2023] [Accepted: 09/01/2023] [Indexed: 10/05/2023] Open
Abstract
The aim of this safety study in mice was to determine in vivo toxicity and biodistribution potential of a single and multiple doses of L-glutamic acid-g-p(HEMA) polymeric nanoparticles as a drug delivery system. The single dose did not cause any lethal effect, and its acute oral LD50 was >2.000 mg/kg body weight (bw). Multiple doses (25, 50, or 100 mg/kg bw) given over 28 days resulted in no significant differences in body and relative organ weights compared to control. These results are supported by biochemical and histological findings. Moreover, nanoparticle exposure did not result in statistically significant differences in micronucleus counts in bone marrow cells compared to control. Nanoparticle distribution was time-dependent, and they reached the organs and even bone marrow by hour 6, as established by ex vivo imaging with the IVIS® spectrum imaging system. In conclusion, L-glutamic acid-g-p(HEMA) polymeric nanoparticles appear biocompatible and have a potential use as a drug delivery system.
Collapse
Affiliation(s)
- Buket Bakan
- Atatürk University Faculty of Science, Department of Molecular Biology and Genetics, Erzurum, Turkey
- Ege University Faculty of Science, Department of Biology, Izmir, Turkey
| | - Fatih Oltulu
- Ege University Faculty of Medicine, Department of Histology and Embryology, Izmir, Turkey
| | - Yeliz Yıldırım
- Ege University Faculty of Science, Department of Chemistry, Izmir, Turkey
| | - Altuğ Yavaşoğlu
- Ege University Faculty of Medicine, Department of Histology and Embryology, Izmir, Turkey
| | - Sinan Akgöl
- Ege University Faculty of Science, Department of Biochemistry, Izmir, Turkey
| | | |
Collapse
|
6
|
Del Carmen García-Rodríguez M, Santiago-Moreno Y, Molina-Alvarez B, Altamirano-Lozano M. Evaluation of Clastogenic/Aneugenic Damage Using the FISH Micronucleus Assay in Mice Exposed to Chromium (VI). In Vivo 2023; 37:1666-1671. [PMID: 37369499 DOI: 10.21873/invivo.13252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/10/2023] [Accepted: 05/19/2023] [Indexed: 06/29/2023]
Abstract
BACKGROUND/AIM Exposure to chromium (VI) [Cr(VI)] has been postulated to be associated with the induction of cancer. In vivo studies utilizing biomarkers of genotoxic damage could aid in elucidating the mechanisms underlying the genotoxic effects of Cr(VI) and their relationship with carcinogenesis. In this study, the origin (clastogenic and/or aneugenic damage) and kinetics of micronuclei (MN) induced by Cr(VI) were investigated. MATERIALS AND METHODS Hsd:ICR female mice were divided into groups of five individuals each. MN kinetics were measured in groups treated with 20 or 25 mg/kg CrO3 intraperitoneally using acridine orange-coated slides in peripheral blood obtained from the caudal vein 0, 12, 24, 36, 48, 60, and 72 h after treatment. Whereas identification of MN with centromeric DNA (MNK+) was measured at the dose of 20 mg/kg of CrO3, using fluorescence in situ hybridization (FISH) with a centromere-specific probe in peripheral blood obtained at 0, 12, and 48 h after treatment. Control groups were administered vehicle only. RESULTS Total MN were quantified and the clastogenic/aneugenic effects of Cr(VI) were evaluated based on the proportion of MNK+ versus micronuclei without centromeric DNA (MNK-). There was a significant increase in MN frequencies beginning at 12 h in the Cr(VI)-treated groups demonstrating its genotoxicity. When calculating the MNK+ as a percentage of the total MN, the increase was significant beginning 12 h after treatment. CONCLUSION The fact that the MNK+ and MNK- were observed at both evaluation times corroborates Cr(VI) as a genotoxic agent and demonstrates that both clastogenic and aneugenic damages are involved in the formation of MN.
Collapse
Affiliation(s)
- María Del Carmen García-Rodríguez
- Laboratorio de Antimutagénesis, Anticarcinogénesis y Antiteratogénesis Ambiental, Facultad de Estudios Superiores-Zaragoza, Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico;
| | - Yolanda Santiago-Moreno
- Laboratorio de Antimutagénesis, Anticarcinogénesis y Antiteratogénesis Ambiental, Facultad de Estudios Superiores-Zaragoza, Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico
| | - Bertha Molina-Alvarez
- Laboratorio de Citogenética, Departamento de Genética Humana, Instituto Nacional de Pediatría, Mexico City, Mexico
| | - Mario Altamirano-Lozano
- Laboratorio de Antimutagénesis, Anticarcinogénesis y Antiteratogénesis Ambiental, Facultad de Estudios Superiores-Zaragoza, Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico
| |
Collapse
|
7
|
de Quadros APO, Baraldi IB, Petreanu M, Niero R, Mantovani MS, De Mascarenhas Gaivão IO, Maistro EL. Cytogenotoxic evaluations of leaves and stems extracts of Rubus rosifolius in primary metabolically noncompetent cells. J Toxicol Environ Health A 2023; 86:361-371. [PMID: 37096566 DOI: 10.1080/15287394.2023.2203190] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Plants with medicinal potential may also produce adverse effects in humans. This seems to be the case for the species Rubus rosifolius, where preliminary studies demonstrated genotoxic effects attributed to extracts obtained from leaves and stems of this plant using on HepG2/C3A human hepatoma cells as a model. Considering the beneficial properties of this plant as an antidiarrheal, analgesic, antimicrobial, and antihypertensive and its effects in the treatment of gastrointestinal diseases, the present study was developed with the aim of determining the cytotoxic and genotoxic potential of extracts of leaves and stems of R. rosifolius in primary without metabolic competence in human peripheral blood mononuclear cells (PBMC). Cell viability analyses at concentrations of between 0.01 and 100 µg/ml of both extracts did not markedly affect cell viability. In contrast, assessment of the genotoxic potential using the comet assay demonstrated significant damage to DNA within PBMC from a concentration of 10 µg/ml in the stem extract, and a clastogenic/aneugenic response without cytokinesis-block proliferation index (CBPI) alterations at concentrations of 10, 20, or 100 µg/ml for both extracts. Under our experimental conditions, the data obtained demonstrated genotoxic and mutagenic effects attributed to extracts from leaves and stems of R. rosifolius in cells in the absence of hepatic metabolism.
Collapse
Affiliation(s)
- Ana Paula Oliveira de Quadros
- Post-Graduate Program on General and Applied Biology, São Paulo State University - UNESP - Biosciences Institute, Botucatu, SP, Brazil
| | - Isabel Bragança Baraldi
- Speech and Hearing Therapy Department, São Paulo State University - UNESP - Faculty of Philosophy and Sciences, Marília, SP, Brazil
| | - Marcel Petreanu
- Department of Biological Sciences, Vale do Itajaí University (UNIVALI), Itajaí, SC, Brazil
| | - Rivaldo Niero
- Department of Biological Sciences, Vale do Itajaí University (UNIVALI), Itajaí, SC, Brazil
| | | | | | - Edson Luis Maistro
- Post-Graduate Program on General and Applied Biology, São Paulo State University - UNESP - Biosciences Institute, Botucatu, SP, Brazil
- Speech and Hearing Therapy Department, São Paulo State University - UNESP - Faculty of Philosophy and Sciences, Marília, SP, Brazil
| |
Collapse
|
8
|
Kim JS, Jeong MH, Seo HS, Park MK, Park HJ, Nah SS. In vitro and in vivo evaluation of the genotoxicity of titanium dioxide, GST. Environ Anal Health Toxicol 2023; 38:e2023008-0. [PMID: 37933102 PMCID: PMC10628408 DOI: 10.5620/eaht.2023008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 04/18/2023] [Indexed: 11/08/2023] Open
Abstract
Titanium dioxide (TiO2) was used in various applications in a wide range of products including food, cosmetics and photocatalyst. General toxicity studies of titanium dioxide, GST (Green Sludge Titanium) have been investigated in several reports, whereas studies concerning mutagenicity and genotoxicity have not been elucidated. Herein, we investigated the potential mutagenicity and genotoxicity of GST by genetic toxicology testing. The bacterial reverse mutation test was conducted by the pre-incubation method in the presence and absence of metabolic activation system (S9 mixture). The chromosome aberration test was performed using cultured Chinese hamster lung cell line in the absence and presence of S9 mixture. The micronucleus test was performed by using specific pathogen-free male ICR mice. Genotoxicity tests were conducted following the test guidelines of the Organisation for Economic Cooperation and Development with application of Good Laboratory Practice. No statistically significant increases were found in the bacterial reverse mutation test, in vitro chromosome aberration test, and in vivo micronucleus test when tested for induction of genotoxicity in GST. These results suggest that GST did not induce mutagenicity and genotoxicity in both in vitro and in vivo system.
Collapse
Affiliation(s)
- Ji-Soo Kim
- Healthcare advanced Chemical Research Institute, Korea Testing and Research Institute (KTR), Hwasun-gun, Jeollanam-do, Republic of Korea
| | - Myung-Hwan Jeong
- Healthcare advanced Chemical Research Institute, Korea Testing and Research Institute (KTR), Hwasun-gun, Jeollanam-do, Republic of Korea
| | - Heung-Sik Seo
- Healthcare advanced Chemical Research Institute, Korea Testing and Research Institute (KTR), Hwasun-gun, Jeollanam-do, Republic of Korea
| | - Myeong-Kyu Park
- Healthcare advanced Chemical Research Institute, Korea Testing and Research Institute (KTR), Hwasun-gun, Jeollanam-do, Republic of Korea
| | - Hee Ju Park
- Research Laboratory, Bentech Frontier Co. Ltd., Nam-myeon, Jangseong, Jeollanam-do, Republic of Korea
| | - Seong-Soon Nah
- Division of Environment & Health, Korea Testing & Research Institute, Gwacheon-si, Gyeonggi-do, Republic of Korea
| |
Collapse
|
9
|
Özlü A, Taner G. Cytotoxic and genotoxic effects of leaking chemicals from serum infusion sets: an in-vitro study. Toxicol Res (Camb) 2023; 12:224-231. [PMID: 37125335 PMCID: PMC10141771 DOI: 10.1093/toxres/tfad010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 01/25/2023] [Accepted: 02/10/2023] [Indexed: 03/04/2023] Open
Abstract
Safety concerns about medical devices playing important role in health sciences and bioengineering research are rising day by day. Although there are specific standards regarding disposable medical materials, the information is updating with the toxicological studies. In this study, cytotoxic/genotoxic effects of chemicals leaking from serum infusion sets that have an important place in the clinic were investigated. Media containing leakage chemicals were prepared from equal samples taken from the plastic line sections of 13 different brands of serum infusion sets containing phthalates and the effects on the cultured cells were compared with the untreated control groups. To obtain leaking chemicals, extracting period was selected as 72 h, a routine set-change time in the clinic as indicated in various publications. Neutral red uptake and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide tests were performed in L929 cells to determine cytotoxicity, and cytokinesis blocked micronucleus technique was performed in lymphocytes to determine genotoxicity. Cytotoxic and genotoxic damage levels were compared by evaluating cell-viability rates relative to control, micronucleus frequency, and nuclear division index values. The results showed that all sets caused a decrease in cell viability revealing the effects both on lysosomal and mitochondrial activity and increase in micronucleus frequencies in general. The number of similar studies is extremely limited, and in this study in addition to the short-term effects of using the serum infusion sets, the information about the sample tests to determine the biosecurity of disposable medical materials is given.
Collapse
Affiliation(s)
- Ayşegül Özlü
- Graduate Education Institute, Department of Biotechnology, Bursa Technical University, Bursa 16310, Turkey
| | - Gökçe Taner
- Faculty of Engineering and Natural Sciences, Department of Bioengineering, Bursa Technical University, Bursa 16310, Turkey
| |
Collapse
|
10
|
Kenger İH, Yıldız H, Hüsunet MT, DÖNbak L, Kayraldız A. Elucidation of the cytogenotoxic potential of vigabatrin and its in silico computer-assisted DNA interaction. Drug Chem Toxicol 2023:1-8. [PMID: 36752088 DOI: 10.1080/01480545.2023.2174988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/17/2023] [Accepted: 01/24/2023] [Indexed: 02/09/2023]
Abstract
Vigabatrin (VGB) is a gammaaminobutyric acid-ergic (GABA-ergic) antiepileptic drug (AED) and is one of 2 approved drugs available to treat infantile spasms (IS). The aim of this study is to elucidate conflicting data on the toxic effects of VGB and to obtain detailed information about its possible cytogenotoxic effects in human lymphocytes. For this purpose, in vitro Chromosomal Aberration (CA), Sister Chromatid Exchange (SCE), Micronucleus (MN) tests, and Comet Assay were performed to determine possible genotoxic and cytotoxic effects of VGB. In addition, the binding energy level of VGB to DNA was determined in silico by molecular docking. The highest concentration (80 μg/ml) of VGB increased the SCE, CA, MN and micronucleated binuclear cell (BNMN) frequency significantly compared to the control after 24 and 48 hours of treatment. In the tail density and tail length parameters, the dose-dependent increase was found to be statistically significant compared to the control. At the 40 and 80 μg/ml concentrations of VGB for 48 hours caused a statistically significant increase in both CA/Cell and AC percentages, while MI and NDI decreased only significantly at the highest concentration (80 µg/ml) causing. In the Comet Assay head density, tail density and tail length parameters, the dose-dependent increase was found to be statistically significant compared to the control. Also, the in silico molecular docking analysis showed that VGB interacts with B-DNA close to the threshold binding energy. The lowest negative free binding energy (ΔG binding) was found as -5.13 kcal/mol. In conclusion, all results are evaluated together, it has been determined that VGB has cytogenotoxic effects in vitro and binds to DNA in silico with significant free binding energy.
Collapse
Affiliation(s)
- İbrahim Halil Kenger
- Faculty of Medicine, Department of Medical Genetics, Gaziantep Islam, Science, and Technology University, Gaziantep, Turkey
| | - Hamit Yıldız
- Faculty of Medicine, Department of Internal Medicine, Gaziantep University, Gaziantep, Turkey
| | - Mehmet Tahir Hüsunet
- Faculty of Medicine, Department of Medical Genetics, Gaziantep Islam, Science, and Technology University, Gaziantep, Turkey
| | - Lale DÖNbak
- Faculty of Science, Department of Biology, Kahramanmaras Sutcu Imam University, Onikişubat, Türkiye
| | - Ahmet Kayraldız
- Faculty of Science, Department of Biology, Kahramanmaras Sutcu Imam University, Onikişubat, Türkiye
| |
Collapse
|
11
|
Rahman Y, Afrin S, Perwez A, Ansari MO, Sarwar T, Ahmed S, Rizvi MA, Shadab GGHA, Tabish M. Nizatidine interacts with ct-DNA causing genotoxicity and cytotoxicity: an assessment by in vitro, in vivo, and in silico studies. J Biomol Struct Dyn 2023; 41:538-549. [PMID: 34856883 DOI: 10.1080/07391102.2021.2008496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
H2 receptor antagonists are the medication given for treating stomach ulcers, but lately, reports have shown their role in healing several malignant ulcers. The present work entails the interaction of H2 blocker nizatidine with calf thymus (ct)-DNA for determining the binding mode and energetics of the interaction. Multi-spectroscopic, calorimetric, viscometric and bioinformatic analysis revealed that nizatidine interacted with ct-DNA via groove-binding mode and is characterised by exothermic reaction. Moreover, assessment of genotoxic potential of nizatidine in vitro was carried out in peripheral human lymphocytes by alkaline comet assay. DNA damage occurred at high concentrations of nizatidine. Genotoxicity of nizatidine was also evaluated in vivo by assessing cytogenetic biomarkers viz. micronuclei formation and chromosomal aberration test. Nizatidine was able to induce micronuclei formation and chromosomal damage at high dose. Additionally, cytotoxic activity of nizatidine was determined in cancer cell lines, namely HeLa and HCT-116 and compared with the normal human cell line HEK-293 employing MTT assay. It was observed that nizatidine was more toxic towards HeLa and HCT-116 than HEK-293. Cell morphology analysis by compound inverted microscopy further strengthens the finding obtained through MTT assay.
Collapse
Affiliation(s)
- Yusra Rahman
- Department of Biochemistry, Faculty of Life Sciences, A.M. University, Aligarh, India
| | - Shumaila Afrin
- Department of Biochemistry, Faculty of Life Sciences, A.M. University, Aligarh, India
| | - Ahmad Perwez
- Department of Biosciences, Jamia Millia Islamia, New Delhi
| | - Mohd Owais Ansari
- Department of Zoology, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Tarique Sarwar
- Department of Biosciences, Jamia Millia Islamia, New Delhi
| | - Shahbaz Ahmed
- Department of Biochemistry, Faculty of Life Sciences, A.M. University, Aligarh, India
| | | | - G G Hammad A Shadab
- Department of Zoology, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Mohammad Tabish
- Department of Biochemistry, Faculty of Life Sciences, A.M. University, Aligarh, India
| |
Collapse
|
12
|
Castanha APM, Almeida-Terassi LM, Guardado-Yordi E, Matos MJ, Maistro EL. Cytogenotoxicity assessment of 3-(3,4-dihydroxyphenyl)-7,8-dihydroxycoumarin on HepG2/C3A cells and leukocytes. J Appl Toxicol 2023; 43:323-334. [PMID: 36000810 DOI: 10.1002/jat.4384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/17/2022] [Accepted: 08/21/2022] [Indexed: 01/17/2023]
Abstract
3-(3,4-Dihydroxyphenyl)-7,8-dihydroxycoumarin is a newly synthesized coumarin derivative with a potent antioxidant effect. The aim of the present study is to investigate the safety of this compound, determining the in vitro cytotoxic and genotoxic in human peripheral blood mononuclear cells (PBMC) and in HepG2/C3A cells. Cell viability has been investigated by the trypan blue staining test and MTT assay and the genotoxicity by the comet assay and micronucleus test, using concentrations between 0.01 and 10 μg/ml. The compound proved to be noncytotoxic in both cell lines, at all tested concentrations, protecting the cells from the DNA damage. In addition, this molecule does not show clastogenic/aneugenic effects when performing the micronucleus test with cytokinesis blockade. Based on the obtained data, and the conditions of the experiments, we can conclude that the 3-(3,4-dihydroxyphenyl)-7,8-dihydroxycoumarin is a safe molecule up to a concentration of 10 μg/ml, which encourages further studies aiming to explore its potential as a drug candidate.
Collapse
Affiliation(s)
| | | | | | - Maria João Matos
- Department of Organic Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, Santiago de Compostela, Spain.,CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Porto, Portugal
| | - Edson Luis Maistro
- Marilia Medical School, FAMEMA, Marilia, Brazil.,Faculty of Philosophy and Sciences, Speech and Hearing Therapy Department, São Paulo State University-UNESP, Marília, Brazil
| |
Collapse
|
13
|
Świercz R, Stępnik M, Gromadzińska J, Domeradzka-Gajda K, Roszak J, Wąsowicz W. Metabolism and in vitro assessment of the mutagenic activity of urinary extracts from rats after inhalation exposure to 1-methylnaphthalene. Int J Occup Med Environ Health 2022; 35:731-746. [PMID: 36169319 PMCID: PMC10464742 DOI: 10.13075/ijomeh.1896.01955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 06/23/2022] [Indexed: 10/14/2022] Open
Abstract
OBJECTIVES 1-Methylnaphthalene (1-MN) is composed of 2 benzene rings and belongs to polycyclic aromatic hydrocarbons. The metabolism of 1-MN in laboratory animals and bacteria leads to the formation of 1-naphthoic acid (1-NA). MATERIAL AND METHODS In this study the distribution of 1-NA in lung, liver, spleen, kidney and urinary excretion of 1-NA in rats after single and repeated inhalation exposure to 1-MN vapors were investigated. The activity of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and cytochrome were measured of the rats. Genotoxic effects were evaluated with the in vitro micronucleus test on V79 hamster fibroblasts. RESULTS The concentrations of 1-NA in the tissues of rats after single and repeated exposure to 1-MN were dependent on the exposure dose. High levels of 1-NA were found in kidneys of animals after the single and repeated exposure to 1-MN. With an increase of 1-MN dose, an increase in the activity of cytochrome P450 (CYP1A1 and CYP1A2) was observed in the liver of rats. Compared to control animals, significantly higher ALT activity was noted in serum of rats exposed to 1-MN. The micronuclei frequency in V79 cells exposed to 1-MN (in the range of analyzable concentrations; i.e., 5-25 μg/ml) did not differ significantly from the vehicle control, whereas urine extracts from rats exposed to 1-MN induced a significant increase in the frequency of micronuclei compared to urine extracts from the group of control animals. CONCLUSIONS Metabolism of 1-MN in rats after the inhalation exposure leading to 1-NA was mainly observed during the first day after the end of exposure. It is likely that 1-MN metabolites present in rat urine can induce the increased micronuclei frequency as was shown in V79 cells. Int J Occup Med Environ Health. 2022;35(6):731-46.
Collapse
Affiliation(s)
- Radosław Świercz
- Nofer Institute of Occupational Medicine, Łódź, Poland (Department of Translational Research)
| | - Maciej Stępnik
- Nofer Institute of Occupational Medicine, Łódź, Poland (Department of Translational Research)
- QSAR Lab, Ltd, Gdańsk, Poland
| | - Jolanta Gromadzińska
- Nofer Institute of Occupational Medicine, Łódź, Poland (Department of Biological and Environmental Monitoring)
| | | | - Joanna Roszak
- Nofer Institute of Occupational Medicine, Łódź, Poland (Department of Translational Research)
| | - Wojciech Wąsowicz
- Nofer Institute of Occupational Medicine, Łódź, Poland (Department of Biological and Environmental Monitoring)
| |
Collapse
|
14
|
Allemang A, Mahony C, Pfuhler S. The in vitro genotoxicity potency of mixtures of pyrrolizidine alkaloids can be explained by dose addition of the individual mixture components. Environ Mol Mutagen 2022; 63:400-407. [PMID: 36258291 DOI: 10.1002/em.22512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
Plant-based 1,2-unsaturated Pyrrolizidine Alkaloids (PAs) are responsible for liver genotoxicity/carcinogenicity following metabolic activation, making them a relevant concern for safety assessment. Due to 21st century toxicology approaches, risk of PAs can be better discerned though an understanding of differing toxic potencies, but it is often mixtures of PAs that are found as contaminants in foods, for example, herbal teas and honey, food supplements and herbal medicines. Our study investigated whether genotoxicity potency of PAs dosed individually or in mixtures differed when measured using micronuclei formation in vitro in HepaRG human liver cells, which we and others have shown to be suitable for observing genotoxic potency differences across different PA structural classes. When equipotent concentrations of up to six different PAs representing a wide range of potencies in vitro were tested as mixtures, the observed genotoxic potency aligned favorably with results for single PAs. Similarly, when the BMD confidence intervals of these equipotent mixtures were compared with the confidence intervals of the individual PAs, only minimal variation was observed. These data support a conclusion that for this class of plant impurities, all acting via the same DNA-reactive mode of action, genotoxic potency can be regarded as additive when assessing the risk of mixtures of PAs.
Collapse
Affiliation(s)
- Ashley Allemang
- Global Product Stewardship, Human Safety, The Procter & Gamble Company, Mason, USA
| | - Catherine Mahony
- Global Product Stewardship, Human Safety, Procter & Gamble Technical Center Ltd., Reading, UK
| | - Stefan Pfuhler
- Global Product Stewardship, Human Safety, The Procter & Gamble Company, Mason, USA
| |
Collapse
|
15
|
Véras JH, Do Vale CR, Luiz Cardoso Bailão EF, Dos Anjos MM, Cardoso CG, de Oliveira MG, de Paula JR, de Oliveira GR, Silva CRE, Chen-Chen L. Protective effects and DNA repair induction of a coumarin-chalcone hybrid against genotoxicity induced by mutagens. J Toxicol Environ Health A 2022; 85:937-951. [PMID: 36068785 DOI: 10.1080/15287394.2022.2120585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Coumarins and chalcones are compounds widely found in plants or obtained by synthetic methods which possess several biological properties including antioxidant, anti-inflammatory, and antitumor effects. A series of coumarin-chalcone hybrids were synthesized to improve their biological actions and reduce potential adverse effects. Considering the applications of these molecules, a coumarin-chalcone hybrid [7-methoxy-3-(E)-3-(3,4,5-trimethoxyphenyl) acryloyl-2 H-chromen-2-one] (4-MET) was synthesized and the genotoxic, cytotoxic, and protective effects assessed against damage induced by different mutagens. First, in silico tools were used to predict biological activity of 4-MET which indicated a chemopreventive potential. Subsequently, the genotoxic/antigenotoxic activities of 4-MET were determined both in vitro (Ames test) and in vivo (micronucleus (MN) test and comet assay). In addition, molecular docking simulations were performed between 4-MET and glutathione reductase, an important cellular detoxifying enzyme. Our results indicated that 4-MET was not mutagenic in the Ames test; however, when co-treated with sodium azide or 4-nitroquinoline 1-oxide (4-NQO), 4-MET significantly reduced the harmful actions of these mutagens. Except for a cytotoxic effect after 120 hr treatment, 4-MET alone did not produce cytotoxicity or genotoxicity in the MN test and comet assay. Nonetheless, all treatments of 4-MET with cyclophosphamide (CPA) showed a chemoprotective effect against DNA damage induced by CPA. Further, molecular docking analysis indicated a strong interaction between 4-MET and the catalytic site of glutathione reductase. These effects may be related to (1) damage prevention, (2) interaction with detoxifying enzymes, and (3) DNA-repair induction. Therefore, data demonstrated that 4-MET presents a favorable profile to be used in chemopreventive therapies.
Collapse
Affiliation(s)
- Jefferson Hollanda Véras
- Laboratory of Radiobiology and Mutagenesis, Department of Genetics, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | - Camila Regina Do Vale
- Laboratory of Radiobiology and Mutagenesis, Department of Genetics, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | | | | | - Clever Gomes Cardoso
- Laboratory of Radiobiology and Mutagenesis, Department of Genetics, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | | | | | | | - Carolina Ribeiro E Silva
- Laboratory of Radiobiology and Mutagenesis, Department of Genetics, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | - Lee Chen-Chen
- Laboratory of Radiobiology and Mutagenesis, Department of Genetics, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| |
Collapse
|
16
|
Sanz-Serrano J, Garayoa R, Vitas AI, López de Cerain A, Azqueta A. In vitro genotoxicity assessment of French fries from mass catering companies: a preliminary study. Mutagenesis 2022; 38:51-57. [PMID: 36242551 PMCID: PMC9897018 DOI: 10.1093/mutage/geac021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 10/02/2022] [Indexed: 02/07/2023] Open
Abstract
It is generally assumed that French fries are likely to have weak in vitro mutagenic activity, but most studies thereof have only assessed gene mutations. In this article, the genotoxicity of 10 extracts of French fries was assessed using the in vitro micronucleus test (following the principles of the OECD 487 guidelines). Each sample was obtained from a different mass catering company in Navarra (Spain). This assay, together with the Ames test, is recommended in the basic in vitro phase included in the European Food Safety Authority Opinion on Genotoxicity Testing Strategies Applicable to Food and Feed Safety Assessment. Eight of 10 samples from mass catering companies induced chromosomal aberrations in the in vitro micronucleus test. Moreover, French fries deep-fried in the laboratory for different periods of time (0, 3, 5, 10, 20, 30 min) were assessed using the in vitro micronucleus test. Genotoxicity was observed in all time periods from 3 min on. The biological relevance of these results must be further explored.
Collapse
Affiliation(s)
- Julen Sanz-Serrano
- Corresponding author. Department of Pharmacology and Toxicology, School of Pharmacy and Nutrition, Universidad de Navarra, Irunlarrea 1, 31008 Pamplona, Spain. E-mail:
| | - Roncesvalles Garayoa
- Department of Nutrition, Food Science and Physiology, Universidad de Navarra, School of Pharmacy and Nutrition, Irunlarrea 1, 31008 Pamplona, Spain
| | - Ana Isabel Vitas
- IdiSNA, Navarra Institute for Health Research, Irunlarrea 3, 31008, Pamplona, Spain,Department of Microbiology and Parasitology, School of Medicine, Universidad de Navarra, Irunlarrea 1, 31008, Pamplona, Spain
| | - Adela López de Cerain
- Department of Pharmacology and Toxicology, School of Pharmacy and Nutrition, Universidad de Navarra, Irunlarrea 1, 31008 Pamplona, Spain,IdiSNA, Navarra Institute for Health Research, Irunlarrea 3, 31008, Pamplona, Spain
| | - Amaya Azqueta
- Department of Pharmacology and Toxicology, School of Pharmacy and Nutrition, Universidad de Navarra, Irunlarrea 1, 31008 Pamplona, Spain,IdiSNA, Navarra Institute for Health Research, Irunlarrea 3, 31008, Pamplona, Spain
| |
Collapse
|
17
|
Stanković M, Ickovski JD, Ljupković RB, Stojanović GS. The effects of Artemisia methanol extracts and ferulic acid, rutin, rosmarinic acid, and quercetin on micronucleus distribution on human lymphocytes. Nat Prod Res 2022; 36:4536-4539. [PMID: 34658273 DOI: 10.1080/14786419.2021.1990918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 09/11/2021] [Accepted: 10/02/2021] [Indexed: 10/20/2022]
Abstract
Methanol extracts of A. absinthium, A. annua, A vulgaris, A. scoparia, and A. alba from Serbia at concentrations of 1.00; 2.00 and 4.00 μg/ml, and as pure compounds identified in examined extracts (ferulic acid, rutin, rosmarinic acid, and quercetin) were examined for their effects on micronucleus distribution in human lymphocytes in vitro. All extracts greatly reduced the number of micronuclei in the concentration of 2.00 μg/ml comparing to the control, whereby A. alba extract exhibited the most prominent effect on decreasing frequency of micronucleus (45.2%), followed by extracts of A. vulgaris, A. absinthium, A. scoparia and A. annua. The same declining trend was observed for the extracts at concentrations of 4.00 µg/ml, and 1.00 µg/ml, respectively. Among pure compounds (concentration 2.00 μg/ml), rutin showed the most pronounced effect on decreasing frequency of micronucleus (41.7%), higher than ferulic acid, quercetin, and rosmarinic acid comparing to the control.
Collapse
Affiliation(s)
| | - Jovana D Ickovski
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Niš, Serbia
| | - Radomir B Ljupković
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Niš, Serbia
| | - Gordana S Stojanović
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Niš, Serbia
| |
Collapse
|
18
|
Bouguellid G, Debbache-Benaida N, Atmani-Kilani D, Russo C, Lavorgna M, Piscitelli C, Ayouni K, Berboucha-Rahmani M, Isidori M, Atmani D. Pistacia lentiscus L. fruits showed promising antimutagenic and antigenotoxic activity using both in-vitro and in-vivo test systems. J Toxicol Environ Health A 2022; 85:603-621. [PMID: 35387576 DOI: 10.1080/15287394.2022.2057885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Pistacia lentiscus L. is one of the most popular medicinal plants attributed to its beneficial properties on human health. However, few toxicogenetic studies have been carried out. Therefore, the aim of this study was to examine the potential genotoxic/antigenotoxic and mutagenic/antimutagenic properties of oil, ethyl acetate and ethanolic extracts of P. lentiscus L. fruits using in vitro the Ames and Umu assays, as well as in vivo micronucleus (MN) test. Extracts did not exert any significant mutagenic/genotoxic effects but provided protection against standard mutagenic and genotoxic agents including 2 nitrofluorene (2-NF) at 2.5 and 5 µg/ml; sodium azide at 5 and 10 µg/ml; 3-methylcholanthrene (3-MC) at 25 and 50 μg/ml; cyclophosphamide (CP) at 50 and 100 μg/ml; 4-nitroquinoline 1-oxide (4-NQO) at 0.05 µg/ml and 2-amino-anthracene (AA) at 0.2 µg/ml. Further, cytotoxicity and selectivity were examined on human hepatocarcinoma (HepG2), and MCF-7 breast cancer cell lines as well as a human normal-like fibroblast cell line (TelCOFS02MA) using MTT assay. Among all extracts, PF1 (ethanolic) showed the most significant selectivity index (SI) (HepG2:11.98; MCF7:4.83), which led to further investigations using an animal model. Oral administration of PF1 (125-1000 mg/kg b.w.) significantly decreased the number of micronucleated cells in CP -initiated (50 mg/kg b.w.) mice, while the number of micronucleated reticulocytes (MNRET), micronucleated polychromatic erythrocytes (MNPCE) or mitotic index (MI) were not markedly affected. Further, PF1 significantly enhanced catalase (CAT) and superoxide dismutase (SOD) activities in the livers and kidneys of these animals. The obtained results indicated the beneficial properties of P. lentiscus L. fruits for use in therapy against harmful effects of genotoxic and mutagenic agents. However, while promising it should be noted that the obtained results are preliminary and need to be confirmed prior to therapeutic use.
Collapse
Affiliation(s)
- Ghania Bouguellid
- Laboratoire de Biochimie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia, 06000, Algeria
| | - Nadjet Debbache-Benaida
- Laboratoire de Biochimie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia, 06000, Algeria
| | - Dina Atmani-Kilani
- Laboratoire de Biochimie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia, 06000, Algeria
| | - Chiara Russo
- Farmaceutiche, Università della Campania "Luigi Vanvitelli"Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e , Via Vivaldi 43, I-81100 Caserta, Italy
| | - Margherita Lavorgna
- Farmaceutiche, Università della Campania "Luigi Vanvitelli"Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e , Via Vivaldi 43, I-81100 Caserta, Italy
| | - Concetta Piscitelli
- Farmaceutiche, Università della Campania "Luigi Vanvitelli"Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e , Via Vivaldi 43, I-81100 Caserta, Italy
| | - Karima Ayouni
- Laboratoire de Biochimie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia, 06000, Algeria
| | - Meriem Berboucha-Rahmani
- Laboratoire de Biochimie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia, 06000, Algeria
| | - Marina Isidori
- Farmaceutiche, Università della Campania "Luigi Vanvitelli"Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e , Via Vivaldi 43, I-81100 Caserta, Italy
| | - Djebbar Atmani
- Laboratoire de Biochimie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia, 06000, Algeria
| |
Collapse
|
19
|
Musto G, Laurenzi V, Annunziata G, Novellino E, Stornaiuolo M. Genotoxic Assessment of Nutraceuticals Obtained from Agricultural Biowaste: Where Do We " AMES"? Antioxidants (Basel) 2022; 11:1197. [PMID: 35740094 DOI: 10.3390/antiox11061197] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/13/2022] [Accepted: 06/15/2022] [Indexed: 01/27/2023] Open
Abstract
Several pharmaceutical companies are nowadays considering the use of agri-food waste as alternative raw material for the extraction of bioactive compounds to include in nutraceuticals and food supplements. This recycling activity is encountering the support of authorities, which are alarmed by air, soil and water pollution generated by agricultural waste disposal. Waste reuse has several economic advantages: (i) its low cost; (ii) its abundance; (iii) the high content of bioactive molecule (antioxidants, minerals, fibers, fatty acids); as well as (iv) the financial support received by governments eager to promote eco-compatible and pollution-reducing practices. While nutraceuticals produced from biowaste are becoming popular, products that have been risk-assessed in terms of safety are quite rare. This despite waste biomass, in virtue of its chemical complexity, could, in many cases, mine the overall safety of the final nutraceutical product. In this review, we summarize the scientific results published on genotoxicity risk-assessment of bioactive compounds extracted from agricultural waste. The review depicts a scenario where the risk-assessment of biowaste derived products is still scarcely diffuse, but when available, it confirms the safety of these products, and lets us envisage their future inclusion in the list of botanicals allowed for formulation intended for human consumption.
Collapse
|
20
|
Franckenstein D, Bothe MK, Hurtado SB, Westphal M. Hydromorphone impurity 2,2-bishydromorphone does not exert mutagenic and clastogenic properties via in silico QSAR prediction and in vitro Ames and micronucleus test. Drug Chem Toxicol 2022:1-6. [PMID: 35603474 DOI: 10.1080/01480545.2022.2076866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The opioid agonist hydromorphone is indicated for the management of severe acute and chronic pain given that alternate treatments are insufficient. While the genotoxicity profile of hydromorphone is well investigated, little is known about the genotoxic potential of its impurities. In this study, 2,2-bishydromorphone was tested in silico and in vitro for both its mutagenic potential in an Ames test performed with Salmonella typhimurium and Escherichia coli tester strains up to a maximum concentration of 5 mg per plate in the absence and presence of metabolic activation. Furthermore, it was tested for its ability to induce micronuclei in TK6 cells in a micronucleus test up to a maximum concentration of 500 µg/mL with or without an exogenous metabolic activation system. 2,2-Bishydromorphone did not reveal any potential for inducing mutagenicity or clastogenicity under the conditions of the respective tests and is therefore considered non-mutagenic and non-clastogenic/aneugenic in vitro. These results are in line with negative in silico quantitative structure-activity relationship (QSAR) prediction for 2,2-bishydromorphone mutagenicity and clastogenicity and provide evidence of good correlation of in silico and in vitro data. Conclusively, these studies add important new clinically relevant information on the safety of hydromorphone as the impurity of 2,2-bishydromorphone is proven to be non-mutagenic and non-clastogenic.
Collapse
Affiliation(s)
- Dennis Franckenstein
- Fresenius Kabi Deutschland GmbH, Medical, Clinical & Regulatory Affairs, Bad Homburg, Germany
| | - Melanie K Bothe
- Fresenius Kabi Deutschland GmbH, Medical, Clinical & Regulatory Affairs, Bad Homburg, Germany
| | - Sara B Hurtado
- Charles River, Genetic and In Vitro Toxicology, Skokie, IL, USA
| | - Martin Westphal
- Fresenius Kabi Deutschland GmbH, Medical, Clinical & Regulatory Affairs, Bad Homburg, Germany
| |
Collapse
|
21
|
Kontaş S. In vivo assessment of genotoxic effects in Cyprinus carpio L., 1758 (Teleostei: Cyprinidae) exposed to selected metal(oid)s. Toxicol Ind Health 2022; 38:277-286. [PMID: 35473491 DOI: 10.1177/07482337221092319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Heavy metals and metalloids originating from industrial, agricultural, and urban wastes and increasing in aquatic ecosystems cause genotoxic damage to fish species. This study aimed to determine the potential genotoxic effects of mixtures of aluminum, arsenic, and manganese in Cyprinus carpio. The effects of the mixtures on erythrocyte cells of C. carpio were examined using the comet assay, micronucleus test, and erythrocytic nuclear abnormalities in two groups after exposure to three doses of the mixtures (Group A; Dose 1: 0.3 + 0.1 + 0.02 mg/L, Dose 2: 0.6 + 0.2 + 0.04 mg/L, Dose 3: 0.9 + 0.3 + 0.06 mg/L and Group B; Dose 1: 1 + 3 +0.1 mg/L, Dose 2: 2 + 6 + 0.2 mg/L, Dose 3: 3 + 9 + 0.3 mg/L). Experimental groups were formed according to the permissible limits specified in the Turkish Surface Water Quality Regulation (TSWQR). The results of comet assay parameters such as tail DNA %, tail moment, and olive tail moment confirmed the genotoxic effect of metal(oid)s mixtures on erythrocyte cells compared with control groups and showed that DNA damage increased with increasing the concentrations. The micronucleus and other nuclear abnormalities such as blebbed nuclei, notched nuclei, eightshaped nuclei, lobed nuclei, and binucleated cells were detected in the erythrocyte cells exposed to the mixtures. Consequently, it was found that the frequency of micronucleus and erythrocytic nuclear abnormalities significantly increased in the erythrocyte cells exposed to metal(oid) concentrations compared to control groups. These results show the existence of potential genotoxicity in C. carpio even at the minimum values specified in the TSWQR after exposure to the mixtures.
Collapse
Affiliation(s)
- Seda Kontaş
- Fatsa Faculty of Marine Sciences, Fisheries Technology Engineering, 187474Ordu University, Ordu, Turkey
| |
Collapse
|
22
|
Brito LD, Araujo CDS, Cavalcante DGSM, Gomes AS, Zocoler MA, Yoshihara E, Job AE, Kerche LE. In vivo assessment of antioxidant, antigenotoxic, and antimutagenic effects of bark ethanolic extract from Spondias purpurea L. J Toxicol Environ Health A 2022; 85:336-352. [PMID: 34903147 DOI: 10.1080/15287394.2021.2013373] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Medicinal plants have always been used for therapeutic purposes; however, some plants may contain toxic and mutagenic substances. The aim of this study was to assess the cytotoxic, genotoxic, mutagenic, antioxidant, antigenotoxic, and antimutagenic effects of the bark ethanolic extract of Spondias purpurea L. using male and female Swiss albino mice. To determine the protective effects of the extract, benzo[a]pyrene (B[a]P) and cyclophosphamide (CP) were selected as cell damage inducers. The extract was examined at doses of 500, 1000, or 1500 mg/kg body weight (BW)via gavage alone or concomitant with B[a]P or CP. Oxidative stress was measured by quantification of blood catalase activity (CAT), reduced glutathione (GSH) levels in total blood, liver, and kidney, and concentrations of malondiadehyde (MDA) in liver and kidney. Genotoxicity and antigenotoxicity were evaluated by the comet assay using peripheral blood. Cytotoxicity, mutagenicity, and antimutagenicity were determined utilizing the micronucleus test in bone marrow and peripheral blood. The S. purpurea L extract increased CAT activity and GSH levels accompanied by a decrease in MDA levels after treatment with B[a]P and CP. No genotoxic, cytotoxic, or mutagenic effects were found in mice exposed only to the extract. These results indicate that the extract of S. purpurea exhibited protective effects against oxidative and DNA damage induced by B[a]P and CP.
Collapse
Affiliation(s)
- Lorrane Davi Brito
- Faculdade de Artes, Ciências, Letras E Educação, Universidade Do Oeste Paulista, Presidente Prudente, Brazil
| | - Caroline de Souza Araujo
- Faculdade de Artes, Ciências, Letras E Educação, Universidade Do Oeste Paulista, Presidente Prudente, Brazil
| | | | - Andressa Silva Gomes
- Departamento de Física, Química E Biologia, Universidade Estadual Paulista "Júlio de Mesquita Filho", Presidente Prudente, Brazil
| | | | - Eidi Yoshihara
- Department of Animal Health, Agência Paulista de Tecnologia Dos Agronegócios (Apta), Presidente Prudente, Brazil
| | - Aldo Eloizo Job
- Departamento de Física, Química E Biologia, Universidade Estadual Paulista "Júlio de Mesquita Filho", Presidente Prudente, Brazil
| | - Leandra Ernst Kerche
- Faculdade de Medicina, Universidade Do Oeste Paulista, Presidente Prudente, Brazil
| |
Collapse
|
23
|
Rocha JD, Gallon ME, de Melo Bisneto AV, Santana Amaral VC, de Almeida LM, Borges LL, Chen-Chen L, Gobbo-Neto L, Bailão EFLC. Phytochemical Composition and Protective Effect of Vernonanthura polyanthes Leaf against In Vivo Doxorubicin-Mediated Toxicity. Molecules 2022; 27:molecules27082553. [PMID: 35458751 PMCID: PMC9032716 DOI: 10.3390/molecules27082553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/22/2022] [Accepted: 03/24/2022] [Indexed: 11/24/2022] Open
Abstract
Vernonanthura polyanthes (Spreng.) A.J. Vega & Dematt. (syn.: Vernonia polyanthes Less) is popularly known as “assa-peixe” and its leaves are used in folk medicine mainly to treat respiratory diseases. In this study, we evaluated the cytogenotoxic and anticytogenotoxic potential of the V. polyanthes leaf aqueous extract (VpLAE) and its n-butanol fraction (n-BF) in the presence or absence of doxorubicin (DXR) (pre-, co-, and post-treatments) on a murine model for 24 h or 120 h. The micronucleus test (MN) and the comet assay were used to assess the cytogenotoxic and anticytogenotoxic potential of VpLAE and n-BF (250, 500, and 1000 mg/kg) administered via gavage to Swiss Webster mice. The chemical profiles of VpLAE and n-BF were assessed by liquid chromatography coupled to mass spectrometry, and their metabolites were putatively identified. Lastly, the possible biological activities related to the (anti) cytogenotoxicity of the compounds were predicted using the PASS online webserver. The in vivo results showed that different doses of VpLAE and n-BF did not present cytotoxic activity; however, the MN test revealed a slight mutagenic activity for the 24 h treatments. Moderate genotoxic effects were demonstrated for all treatments in the comet assay. Regarding anticytotoxicity and antimutagenicity, VpLAE and n-BF presented a high cytoprotective potential against DXR toxic effects. In the co-treatment, VpLAE reduced the DXR genotoxicity by ~27%, and n-BF did not demonstrate antigenotoxic potential. In contrast, an antigenotoxic effect was observed for both VpLAE and n-BF in the pre- and post-treatments, reducing DXR genotoxicity by ~41% and ~47%, respectively. Chemical analysis of VpLAE and n-BF showed the presence of eight phenolic compounds, including seven chlorogenic acids and a flavonoid. The PASS online tool predicted antimutagenic, anticancer, antineoplastic, chemoprotective, antioxidant, and radical scavenging activities for all constituents identified in VpLAE and n-BF. V. polyanthes leaves presented a protective effect against DXR cytogenotoxicity. In general, VpLAE and n-BF showed a greater antigenotoxic potential in the pre- and post-treatments. The metabolites putatively identified in VpLAE and n-BF exhibited antioxidant and chemoprotective potential according to computational prediction analysis. Altogether, our results highlight the potential application of V. polyanthes to protect against toxic manifestations induced by DXR.
Collapse
Affiliation(s)
- Jamira Dias Rocha
- Laboratório de Biotecnologia, Campus Central, Universidade Estadual de Goiás, Anápolis 75132-903, GO, Brazil; (J.D.R.); (V.C.S.A.); (L.M.d.A.); (L.L.B.)
| | - Marilia Elias Gallon
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos de Ribeirão Preto, Universidade de São Paulo, Av. do Café s/n, Ribeirão Preto 14040-903, SP, Brazil; (M.E.G.); (L.G.-N.)
| | - Abel Vieira de Melo Bisneto
- Laboratório de Radiobiologia e Mutagênese, Departamento de Genética, Instituto de Ciências Biológicas I, Universidade Federal de Goiás, Goiânia 74045-155, GO, Brazil; (A.V.d.M.B.); (L.C.-C.)
| | - Vanessa Cristiane Santana Amaral
- Laboratório de Biotecnologia, Campus Central, Universidade Estadual de Goiás, Anápolis 75132-903, GO, Brazil; (J.D.R.); (V.C.S.A.); (L.M.d.A.); (L.L.B.)
| | - Luciane Madureira de Almeida
- Laboratório de Biotecnologia, Campus Central, Universidade Estadual de Goiás, Anápolis 75132-903, GO, Brazil; (J.D.R.); (V.C.S.A.); (L.M.d.A.); (L.L.B.)
| | - Leonardo Luiz Borges
- Laboratório de Biotecnologia, Campus Central, Universidade Estadual de Goiás, Anápolis 75132-903, GO, Brazil; (J.D.R.); (V.C.S.A.); (L.M.d.A.); (L.L.B.)
- Escola de Ciências Médicas e da Vida, Pontifícia Universidade Católica de Goiás, Goiânia 74605-010, GO, Brazil
| | - Lee Chen-Chen
- Laboratório de Radiobiologia e Mutagênese, Departamento de Genética, Instituto de Ciências Biológicas I, Universidade Federal de Goiás, Goiânia 74045-155, GO, Brazil; (A.V.d.M.B.); (L.C.-C.)
| | - Leonardo Gobbo-Neto
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos de Ribeirão Preto, Universidade de São Paulo, Av. do Café s/n, Ribeirão Preto 14040-903, SP, Brazil; (M.E.G.); (L.G.-N.)
| | - Elisa Flávia Luiz Cardoso Bailão
- Laboratório de Biotecnologia, Campus Central, Universidade Estadual de Goiás, Anápolis 75132-903, GO, Brazil; (J.D.R.); (V.C.S.A.); (L.M.d.A.); (L.L.B.)
- Correspondence: ; Tel.: +55-(62)-3328-1151
| |
Collapse
|
24
|
Cao Y, Xi J, You X, Liu W, Luan Y. Dose-response genotoxicity of triclosan in mice: an estimate of acceptable daily intake based on organ toxicity. Toxicol Res (Camb) 2021; 10:1153-1161. [PMID: 34956618 PMCID: PMC8692727 DOI: 10.1093/toxres/tfab098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/23/2021] [Accepted: 10/10/2021] [Indexed: 11/13/2022] Open
Abstract
Triclosan (TCS) is widely used and it bioaccumulates in humans. We found that TCS induced DNA damage in TK6 cell in our previous work. Herein, we performed a pilot assay of the TK6 cell/TK gene (TK+/-) mutation assay without metabolic activation for 24 h and found that TCS significantly induced mutation frequency. We further investigated the dose-response toxicity and genotoxicity of TCS. We combined the newly developed Pig-a gene mutation assay with bone marrow micronucleus (MN) test in a 19-day short-term study. ICR mice were administered orally with TCS at six dose levels from 0 to1000 mg/kg/day. We quantitatively assessed the dose-response relationships for the Pig-a assay, MN test, and organ coefficient data for possible points of departure (PoDs) by estimating the benchmark dose using PROAST software. We did not observe elevated Pig-a mutant frequency or MN frequency in TCS-treated mice. But a dose-dependent and statistically significant increase in liver organ coefficient data was observed. The PoD and acceptable daily intake based on organ toxicity were further developed and no greater than 1.82 and 0.00182 mg/kg/day, respectively, indicating that the toxicity of TCS may has been underestimated in previous studies and greater attention should be paid to low-level TCS exposure.
Collapse
Affiliation(s)
- Yiyi Cao
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Jing Xi
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Xinyue You
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Weiying Liu
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Yang Luan
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People’s Republic of China
| |
Collapse
|
25
|
Malkova A, Svadlakova T, Singh A, Kolackova M, Vankova R, Borsky P, Holmannova D, Karas A, Borska L, Fiala Z. In Vitro Assessment of the Genotoxic Potential of Pristine Graphene Platelets. Nanomaterials (Basel) 2021; 11:2210. [PMID: 34578525 DOI: 10.3390/nano11092210] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/20/2021] [Accepted: 08/25/2021] [Indexed: 02/06/2023]
Abstract
(1) Background: Graphene is a two-dimensional atomic structure with a wide range of uses, including for biomedical applications. However, knowledge of its hazards is still limited. This work brings new cytotoxic, cytostatic, genotoxic and immunotoxic data concerning the in vitro exposure of human cell line to two types of graphene platelets (GP). It also contributes to the formation of general conclusions about the health risks of GP exposure. (2) Methods: In vitro exposure of a THP-1 cell line to three concentrations of two GP over 40 h. The cytotoxic potential was assessed by the measurement of LDH and glutathione (ROS) and by a trypan blue exclusion assay (TBEA); the cytostatic and genotoxic potential were assessed by the cytokinesis-block micronucleus (CBMN) test; and the immunotoxic potential was assessed by the measurement of IL-6, IL-10 and TNF-α. (3) Results: We found a significant dose-dependent increase in DNA damage (CBMN). The lowest observed genotoxic effect levels (LOGEL) were 5 µg/mL (GP1) and 30 µg/mL (GP2). We found no significant leaking of LDH from cells, increase in dead cells (TBEA), induction of ROS, increased levels of cytostasis, or changes in IL-6, IL-10 and TNF-α levels. (4) Conclusions: The genotoxicity increased during the short-term in vitro exposure of THP-1 to two GP. No increase in cytotoxicity, immunotoxicity, or cytostasis was observed.
Collapse
|
26
|
More SJ, Bampidis V, Bragard C, Halldorsson TI, Hernández-Jerez AF, Hougaard Bennekou S, Koutsoumanis K, Lambré C, Machera K, Naegeli H, Nielsen SS, Schlatter J, Schrenk D, Turck D, Younes M, Aquilina G, Bignami M, Bolognesi C, Crebelli R, Gürtler R, Marcon F, Nielsen E, Vleminckx C, Carfì M, Martino C, Maurici D, Parra Morte J, Rossi A, Benford D. Guidance on aneugenicity assessment. EFSA J 2021; 19:e06770. [PMID: 34386097 PMCID: PMC8340060 DOI: 10.2903/j.efsa.2021.6770] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The EFSA Scientific Committee was asked to provide guidance on the most appropriate in vivo tests to follow up on positive in vitro results for aneugenicity, and on the approach to risk assessment for substances that are aneugenic but not clastogenic nor causing gene mutations. The Scientific Committee confirmed that the preferred approach is to perform an in vivo mammalian erythrocyte micronucleus test with a relevant route of administration. If this is positive, it demonstrates that the substance is aneugenic in vivo. A negative result with evidence that the bone marrow is exposed to the test substance supports a conclusion that aneugenic activity is not expressed in vivo. If there is no evidence of exposure to the bone marrow, a negative result is viewed as inconclusive and further studies are required. The liver micronucleus assay, even though not yet fully validated, can provide supporting information for substances that are aneugenic following metabolic activation. The gastrointestinal micronucleus test, conversely, to be further developed, may help to assess aneugenic potential at the initial site of contact for substances that are aneugenic in vitro without metabolic activation. Based on the evidence in relation to mechanisms of aneugenicity, the Scientific Committee concluded that, in principle, health‐based guidance values can be established for substances that are aneugenic but not clastogenic nor causing gene mutations, provided that a comprehensive toxicological database is available. For situations in which the toxicological database is not sufficient to establish health‐based guidance values, some approaches to risk assessment are proposed. The Scientific Committee recommends further development of the gastrointestinal micronucleus test, and research to improve the understanding of aneugenicity to support risk assessment. This publication is linked to the following EFSA Supporting Publications article: http://onlinelibrary.wiley.com/doi/10.2903/sp.efsa.2021.EN-6814/full
Collapse
|
27
|
Silva BO, Orlando JB, Pires CL, Hiruma-Lima CA, de Mascarenhas Gaivão I, Perazzo FF, Maistro EL. Genotoxicity induced by nerol, an essential oil present in citric plants using human peripheral blood mononuclear cells (PBMC) and HepG2/C3A cells as a model. J Toxicol Environ Health A 2021; 84:518-528. [PMID: 33761836 DOI: 10.1080/15287394.2021.1902443] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Nerol (cis-3,7-dimethyl-2,6-octadien-1-ol) is a monoterpene widely used in cosmetic products, household detergents and cleaners, as well as a flavoring in several food products. Despite the high level of human exposure to nerol, an absence of studies regarding potential genetic toxicity in human cells exists. The aim of this investigation was to examine the cytotoxic and genotoxic potential of this monoterpene on human peripheral blood mononuclear cells as well as hepatic metabolizing HepG2/C3A human cell line. Cytotoxicity was assessed using trypan blue staining and MTT assay while genotoxicity was determined utilizing the comet and micronucleus test. Cytotoxicity tests showed cell viability greater than 70% for concentrations between 2.5 and 500 µg/ml. Both cell types exhibited significant DNA damage and chromosomal mutations after medium and high concentration incubation with nerol indicating that the safety of use of this monoterpene in various formulations to which humans are exposed needs to be monitored and requires more comprehensive investigations.
Collapse
Affiliation(s)
- Brian Ogushi Silva
- Speech and Hearing Therapy Department, São Paulo State University - UNESP - Faculty of Philosophy and Sciences, Marília, Brazil
| | - Juliana Botinhon Orlando
- Speech and Hearing Therapy Department, São Paulo State University - UNESP - Faculty of Philosophy and Sciences, Marília, Brazil
| | - Camila Lehnhardt Pires
- Programa De Pós-Graduação Em Biologia Geral E Aplicada - São Paulo State University (UNESP), Instituto De Biociências, Botucatu, Brazil
| | - Clélia Akiko Hiruma-Lima
- Programa De Pós-Graduação Em Biologia Geral E Aplicada - São Paulo State University (UNESP), Instituto De Biociências, Botucatu, Brazil
| | - Isabel de Mascarenhas Gaivão
- Department of Genetics and Biotechnology and Animal and Veterinary Research Centre (CECAV), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Fábio Ferreira Perazzo
- Institute of Environmental, Chemistry and Pharmaceutical Sciences, Federal University of São Paulo (UNIFESP), Diadema, Brazil
| | - Edson Luis Maistro
- Speech and Hearing Therapy Department, São Paulo State University - UNESP - Faculty of Philosophy and Sciences, Marília, Brazil
- Programa De Pós-Graduação Em Biologia Geral E Aplicada - São Paulo State University (UNESP), Instituto De Biociências, Botucatu, Brazil
| |
Collapse
|
28
|
Bianchi J, Cavicchioli R, Kubota LT, Carrilho E, de Sousa CP, Freitas Anibal FD. Antigenotoxic potential of the fermentation broth produced by Paenibacillus polymyxa RNC-D in vitro. Future Microbiol 2021; 16:471-485. [PMID: 33960819 DOI: 10.2217/fmb-2020-0176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: Evaluate the chemopreventive potential of the extract from P. polymyxa RNC-D. Methods: Concentrations of P. polymyxa RNC-D extract were tested in HepG2/C3A cells to assess their genotoxic (comet assay), mutagenic (micronucleus test) and antigenotoxic potential (comet assay) in vitro. Results: 400 and 40 μg/ml concentrations induced DNA lesions, whereas the 4 μg/ml induced a desmutagenic effect. Complementary tests indicated that the extract minimized the formation of reactive oxygen species induced by methyl methanesulfonate and normalized the loss of membrane potential. The quantification of cytokines indicated that TNF-α was immunostimulated by the extract. However, when administered in conjunction with the methyl methanesulfonate, the extract blocked the TNF-α release. Conclusion: The fermentation broth from P. polymyxa RNC-D showed an antigenotoxic effect, and thus the potential to be used as chemopreventive compound.
Collapse
Affiliation(s)
- Jaqueline Bianchi
- Centro de Ciências Biológicas e da Saúde, Universidade Federal de São Carlos (UFSCar), São Carlos, 13565-905, SP, Brazil
| | - Rafael Cavicchioli
- Centro de Ciências Biológicas e da Saúde, Universidade Federal de São Carlos (UFSCar), São Carlos, 13565-905, SP, Brazil
| | - Lauro T Kubota
- Instituto de Química, Universidade Estadual de Campinas (UNICAMP), Campinas, 13083-970, SP, Brazil.,Instituto de Química de São Carlos, Universidade de São Paulo (USP), São Carlos, 13566-590, SP, Brazil
| | - Emanuel Carrilho
- Instituto de Química de São Carlos, Universidade de São Paulo (USP), São Carlos, 13566-590, SP, Brazil.,Instituto Nacional de Ciência e Tecnologia de Bioanalítica - INCTBio, Campinas, 13083-970, SP, Brazil
| | - Cristina P de Sousa
- Centro de Ciências Biológicas e da Saúde, Universidade Federal de São Carlos (UFSCar), São Carlos, 13565-905, SP, Brazil
| | - Fernanda de Freitas Anibal
- Centro de Ciências Biológicas e da Saúde, Universidade Federal de São Carlos (UFSCar), São Carlos, 13565-905, SP, Brazil.,Instituto de Química de São Carlos, Universidade de São Paulo (USP), São Carlos, 13566-590, SP, Brazil
| |
Collapse
|
29
|
Kavasi RM, Coelho CC, Platania V, Quadros PA, Chatzinikolaidou M. In Vitro Biocompatibility Assessment of Nano-Hydroxyapatite. Nanomaterials (Basel) 2021; 11:1152. [PMID: 33925076 DOI: 10.3390/nano11051152] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/18/2021] [Accepted: 04/23/2021] [Indexed: 01/17/2023]
Abstract
Hydroxyapatite (HA) is an important component of the bone mineral phase. It has been used in several applications, such as bone regenerative medicine, tooth implants, drug delivery and oral care cosmetics. In the present study, three different batches of a commercial nanohydroxyapatite (nHA) material were physicochemically-characterized and biologically-evaluated by means of cytotoxicity and genotoxicity using appropriate cell lines based on well-established guidelines (ISO10993-5 and OECD 487). The nHAs were characterized for their size and morphology by dynamic light scattering (DLS) and transmission electron microscopy (TEM) and were found to have a rod-like shape with an average length of approximately 20 to 40 nm. The nanoparticles were cytocompatible according to ISO 10993-5, and the in vitro micronucleus assay showed no genotoxicity to cells. Internalization by MC3T3-E1 cells was observed by TEM images, with nHA identified only in the cytoplasm and extracellular space. This result also validates the genotoxicity since nHA was not observed in the nucleus. The internalization of nHA by the cells did not seem to affect normal cell behavior, since the results showed good biocompatibility of these nHA nanoparticles. Therefore, this work is a relevant contribution for the safety assessment of this nHA material.
Collapse
|
30
|
Jan BL, Ahmad A, Khan A, Rehman MU, Alkharfy KM. Protective effect of chrysin, a flavonoid, on the genotoxic activity of carboplatin in mice. Drug Chem Toxicol 2021; 45:2146-2152. [PMID: 33829940 DOI: 10.1080/01480545.2021.1908752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Carboplatin is amongst the most commonly used anticancer drugs for the management of several human malignancies. However, it has displayed genotoxic properties against normal cells. Evaluation of natural products for their protective effects against chemotherapeutic drug induced toxicity has been growing in recent years. A naturally occurring flavonoid, chrysin, has strong antioxidant abilities and protects against DNA impairment. This study used multiple assays to evaluate the levels of damage to DNA in normal cells and to examine any possible protective role of chrysin against such damage. Male BALB/c mice were administered chrysin orally in two doses of 20 and 40 mg/kg for 10 consecutive days and then a single injection of carboplatin [90 mg/kg body weight (b.w.)] was administered intraperitoneally to induce carboplatin toxicity. 24 h after the carboplatin injection, mice were sacrificed. DNA damage was evaluated using several genotoxicity tests (8-Hydroxydeoxy-guanosine marker, comet assay, micronucleus test, and chromosomal aberration assay) to identify diverse types of damage to the DNA. The results suggest that pretreatment with chrysin significantly decreased the level of DNA damage caused by carboplatin probably due to its potent antioxidant traits. Therefore, chrysin can be considered to be developed as a chemoprotective agent against chemotherapy associated side-effects.
Collapse
Affiliation(s)
- Basit L Jan
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ajaz Ahmad
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Altaf Khan
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Muneeb U Rehman
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Khalid M Alkharfy
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| |
Collapse
|
31
|
Wu Y, Qiang Y, Zhang G, Zhou M. Acute toxicity and micronucleus test of conotoxin lt14a in mice. Basic Clin Pharmacol Toxicol 2021; 129:52-60. [PMID: 33742558 DOI: 10.1111/bcpt.13582] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 03/09/2021] [Accepted: 03/15/2021] [Indexed: 01/09/2023]
Abstract
Conotoxins, which target ion channels or neurotransmitter receptors with high specificity, are valuable in drug development for pain, epilepsy and other neurological diseases. However, the toxicology of conotoxins is rarely reported. In this study, we primarily researched parts of the pharmacological and toxicological properties of an analgesic conotoxin lt14a. Three doses of lt14a (1, 5 and 10 mg/kg) could prolong the pentobarbital-induced sleep time of mice and showed no significant effect on the spontaneous locomotor activity of mice. Three doses of lt14a (50, 100 and 200 mg/kg) did not increase micronucleus rate in the micronucleus test. In addition, three doses of lt14a (200, 500 and 1000 mg/kg) showed no pathological change on the heart or brain of mice in the acute toxicity test. The high dose of lt14a (1000 times the effective analgesic dose) had a certain damaging effect on the liver and lung according to serological detection and histopathology. As part of the preclinical studies, our results provide acute toxicity and mutagenicity evaluation of the promising analgesic conotoxin lt14a.
Collapse
Affiliation(s)
- Yun Wu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China.,National Engineering Research Center of South China Sea Marine Biotechnology, Guangzhou, China
| | - Yuanyuan Qiang
- National Engineering Research Center of South China Sea Marine Biotechnology, Guangzhou, China.,Ningxia Key Laboratory for Cerebrocranical Disease, Ningxia Medical University, Yinchuan, China
| | - Guangxian Zhang
- National Engineering Research Center of South China Sea Marine Biotechnology, Guangzhou, China.,China School of Fundamental Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Maojun Zhou
- National Engineering Research Center of South China Sea Marine Biotechnology, Guangzhou, China.,Department of Oncology, NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, China
| |
Collapse
|
32
|
Ness SLR, Mascarenhas MÁ, Arbo MD, Tonietto BD, Cestonaro LV, Dos Santos NG, Garcia SC, Ferreira CF, Capp E. Occupational exposure assessment in professionals who manipulate and administer antineoplastic drugs in a university hospital in Southern Brazil. J Oncol Pharm Pract 2021; 27:1205-1213. [PMID: 33736555 DOI: 10.1177/10781552211003638] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
INTRODUCTION Our goal was to demonstrate the effects of occupational exposure to antineoplastic drugs on oxidative stress parameters and DNA damage in health professionals who manipulate and administer antineoplastic drugs in a University Hospital in Southern Brazil. METHODS The case-control study with a longitudinal design, involved 64 individuals, 29 of them pharmacists, pharmacy technicians and nurses who were occupationally exposed to antineoplastic drugs and 35 professionals who were not exposed. Gene mutations were determined by micronucleus from salivary fluid; DNA damage by comet assay and oxidative stress parameters in whole blood were also evaluated. RESULTS All workers exposed to antineoplastic drugs used personal protective equipment (PPE). It was demonstrated that the total nonprotein thiol and thiobarbituric acid reactive substances levels showed interaction between group and time, with higher levels one week after handling/administration of antineoplastic drugs in the exposed group (GEE, p ≤ 0.0001 and p = 0,013, respectively). Additionally, there was a group effect on the activities of the catalase and glutathione peroxidase antioxidant enzymes (GEE, p = 0.027 and p ≤ 0.0001, respectively), and workers occupationally exposed to antineoplastic drugs had higher enzyme activities compared to those not exposed. No genotoxic damage was demonstrated through the evaluated parameters. CONCLUSIONS Despite the correct use of PPE, professionals occupationally exposed to antineoplastic drugs were more susceptible to oxidative stress than those not exposed. The evaluation of the studied parameters is especially important for the definition of conducts and practices in the area, always in search of guaranteeing the establishment of a rational policy to protect workers' health.
Collapse
Affiliation(s)
- Sandro Luis R Ness
- Graduação na Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Central de Misturas Intravenosas, Serviço de Farmácia, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Marcello Á Mascarenhas
- Programa de Pós-Graduação Strict Sensu em Biociências e Reabilitação, Curso de Farmácia do Centro Universitário Metodista-IPA, Porto Alegre, Brazil
| | - Marcelo D Arbo
- Graduação na Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratório de Toxicologia, Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Brazil
| | - Bruna D Tonietto
- Graduação na Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratório de Toxicologia, Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Brazil
| | - Larissa V Cestonaro
- Graduação na Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratório de Toxicologia, Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Brazil
| | - Nícolas G Dos Santos
- Graduação na Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratório de Toxicologia, Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Brazil
| | - Solange Cristina Garcia
- Graduação na Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratório de Toxicologia, Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Brazil
| | - Charles F Ferreira
- Programa de Pós-Graduação em Ciências da Saúde: Ginecologia e Obstetrícia (PPGGO), Hospital de Clínicas de Porto Alegre (HCPA), Faculdade de Medicina (FAMED), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.,Grupo de Pesquisa: Climatério, e Menopausa. Hospital de Clínicas de Porto Alegre (HCPA), Faculdade de Medicina (FAMED), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Edison Capp
- Programa de Pós-Graduação em Ciências da Saúde: Ginecologia e Obstetrícia (PPGGO), Hospital de Clínicas de Porto Alegre (HCPA), Faculdade de Medicina (FAMED), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.,Graduação na Faculdade de Medicina (FAMED), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| |
Collapse
|
33
|
Melo Bisneto AVD, Oliveira LCD, Silva Fernandes A, Silva LS, Véras JH, Cardoso CG, E Silva CR, de Moraes Filho AV, Carneiro CC, Chen-Chen L. Recombinogenic, genotoxic, and cytotoxic effects of azathioprine using in vivo assays. J Toxicol Environ Health A 2021; 84:261-271. [PMID: 33372579 DOI: 10.1080/15287394.2020.1864692] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Azathioprine (Aza) is a purine antimetabolite immunosuppressant that is widely employed for immunosuppressive therapy in post-transplant recipients or patients with autoimmune diseases. Chronic use of immunosuppressants might produce several side effects, including a high rate of neoplasms in these patients. Considering that genotoxic effects are associated with an increased risk of developing cancer, the aim of this study was to examine the recombinogenic, genotoxic, and cytotoxic effects of Aza using Somatic Mutation and Recombination Test (SMART) in Drosophila melanogaster, as well as comet and micronucleus assays in mouse bone marrow cells. Further, the adverse effects of Aza were determined in mouse hepatic and renal tissues using histopathological analysis. Data demonstrated that Aza induced significant increased genotoxicity in D. melanogaster and mouse bone marrow cells at all concentrations tested. Homologous recombination was the predominant genotoxic event noted for the first time to be initiated by Aza in SMART. In histopathological analysis, Aza did not show any marked toxic activity in mouse hepatic and renal tissues. Therefore, the high rate of neoplasms reported in patients with long-term use of Aza may be attributed, at least partially, to the genotoxic action of this drug.
Collapse
Affiliation(s)
- A V D Melo Bisneto
- Laboratory of Radiobiology and Mutagenesis, Department of Genetics, Institute of Biological Sciences, Campus Samambaia, Federal University of Goiás, Goiânia, Brazil
| | - L C D Oliveira
- Laboratory of Radiobiology and Mutagenesis, Department of Genetics, Institute of Biological Sciences, Campus Samambaia, Federal University of Goiás, Goiânia, Brazil
| | - A Silva Fernandes
- Laboratory of Radiobiology and Mutagenesis, Department of Genetics, Institute of Biological Sciences, Campus Samambaia, Federal University of Goiás, Goiânia, Brazil
| | - L S Silva
- Laboratory of Radiobiology and Mutagenesis, Department of Genetics, Institute of Biological Sciences, Campus Samambaia, Federal University of Goiás, Goiânia, Brazil
| | - J H Véras
- Laboratory of Radiobiology and Mutagenesis, Department of Genetics, Institute of Biological Sciences, Campus Samambaia, Federal University of Goiás, Goiânia, Brazil
| | - C G Cardoso
- Department of Morphology, Institute of Biological Sciences, Campus Samambaia, Federal University of Goiás, Goiânia, Brazil
| | - Carolina R E Silva
- Department of Morphology, Institute of Biological Sciences, Campus Samambaia, Federal University of Goiás, Goiânia, Brazil
| | - A V de Moraes Filho
- Institute of Health Sciences, Alfredo Nasser University, Aparecida de Goiânia, Brazil
| | - C C Carneiro
- Institute of Health Sciences, Universidade Paulista, Campus Flamboyant, Goiânia, Brazil
| | - L Chen-Chen
- Laboratory of Radiobiology and Mutagenesis, Department of Genetics, Institute of Biological Sciences, Campus Samambaia, Federal University of Goiás, Goiânia, Brazil
| |
Collapse
|
34
|
Alpire MES, Cardoso CM, Seabra Pereira CD, Ribeiro DA. Genomic instability in Buccal mucosal cells of children living in abnormal conditions from Santos-Sao Vicente Estuary. Int J Environ Health Res 2021; 31:179-185. [PMID: 31257915 DOI: 10.1080/09603123.2019.1636004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 06/20/2019] [Indexed: 06/09/2023]
Abstract
The aim of this study was to evaluate genomic instability and cytotoxicity in buccal mucosa cells of children living in abnormal conditions from Santos Sao Vicente estuary. The study area is located between coordinates 23°58'11.8"S and 46°24'26.3"W, in the southwestern zone of the Sao Paulo State, Brazil. A total of 40 children was distributed into two groups: exposed and non-exposed groups. The frequency of micronuclei increased to buccal mucosa cells of children living in Santos Sao Vicente estuary when compared to the non-exposed group (p < 0.05). No remarkable differences on buccal cells were found inpyknosis, karyorrhexis and karyolysi between groups. Taken together, our results suggest that children living in contaminated areas comprise a high group for genomic instability on buccal mucosa cells. Given that the current investigation is a preliminary study, further analysis with a larger sample of children is interesting as a future perspective.
Collapse
|
35
|
Ghosh A, Rabbani SI, Asdaq SMB, Mohzari Y, Alrashed A, Najib Alajami H, Othman Aljohani A, Ali Al Mushtawi A, Sultan Alenazy M, Fahad Alamer R, Khalid Alanazi A. Morus alba Prevented the Cyclophosphamide Induced Somatic and Germinal Cell Damage in Male Rats by Ameliorating the Antioxidant Enzyme Levels. Molecules 2021; 26:molecules26051266. [PMID: 33652778 PMCID: PMC7956634 DOI: 10.3390/molecules26051266] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 02/21/2021] [Accepted: 02/24/2021] [Indexed: 12/02/2022] Open
Abstract
Cytogenetic analysis is essential to determine the effect of mutagens and antimutagens on genetic material. This study was done to evaluate the protective effect of root bark extract of Morus alba (M. alba) against cyclophosphamide induced somatic and germinal cell damage in male rats. The ethanolic extract of M. alba (0.25, 0.5 and 1 g/kg, 2 weeks) was evaluated against cyclophosphamide (75 mg/kg, single dose) induced nuclear damage. The sampling was done after 48 h of the clastogen treatment. The somatic and germinal nuclear damage was studied by bone marrow micronucleus and sperm analysis, respectively. Serum superoxide and catalase levels were estimated to determine the antioxidant status in each group. The results were analyzed statistically to find the significant variation. The administration of M. alba for 2 weeks suppressed dose-dependently the changes induced by cyclophosphamide. M. alba (0.5 g/kg) decreased the frequency of micronucleated erythrocyte, sperm shape abnormality and enhanced the sperm count, sperm motility and polychromatic-normochromatic erythrocytes ratio significantly (p < 0.05) in comparison with the cyclophosphamide treated group. The highest tested dose of M. alba (1 g/kg) produced more prominent suppression (p < 0.01) in the cyclophosphamide-induced somatic and germinal cell defects. The results also showed significant (p < 0.05) improvement in the serum antioxidant enzymes levels with M. alba when compared with the challenge group. The lower dose of M. alba extract (0.25 g/kg) prevented the CP-induced changes but was found to be statistically insignificant. Therefore, antimutagenic potential of the high dose of the extract of M. alba is possibly due to its antioxidant nature. The ability of the M. alba extract to prevent the nuclear damage could play an important role in overcoming several mutational defects that are associated with anticancer chemotherapy.
Collapse
Affiliation(s)
- Abhijit Ghosh
- Department of Pharmacology, Al-Ameen College of Pharmacy, Bangalore 560027, India;
| | - Syed Imam Rabbani
- Department of Pharmacology, Al-Ameen College of Pharmacy, Bangalore 560027, India;
- Department of Pharmacology and Toxicology, College of Pharmacy, Qassim University, Buraydah 51452, Saudi Arabia
- Correspondence: (S.I.R.); (S.M.B.A.); Tel.: +966-4903555-3399 (S.M.B.A.); Fax: +966-4903501 (S.M.B.A.)
| | - Syed Mohammed Basheeruddin Asdaq
- Department of Pharmacy Practice, College of Pharmacy, AlMaarefa University, Dariyah, Riyadh 13713, Saudi Arabia
- Correspondence: (S.I.R.); (S.M.B.A.); Tel.: +966-4903555-3399 (S.M.B.A.); Fax: +966-4903501 (S.M.B.A.)
| | - Yahya Mohzari
- Clinical Pharmacy Department, King Saud Medical City, Riyadh 12746, Saudi Arabia;
| | - Ahmed Alrashed
- Pharmaceutical Services Administration, Inpatient Department, Main Hospital, KFMC, Riyadh 11564, Saudi Arabia;
| | - Hamdan Najib Alajami
- Pharmaceutical Services Administration, King Saud Medical City, Ministry of Health, Riyadh 12746, Saudi Arabia; (H.N.A.); (A.O.A.); (A.A.A.M.); (M.S.A.); (R.F.A.); (A.K.A.)
| | - Awad Othman Aljohani
- Pharmaceutical Services Administration, King Saud Medical City, Ministry of Health, Riyadh 12746, Saudi Arabia; (H.N.A.); (A.O.A.); (A.A.A.M.); (M.S.A.); (R.F.A.); (A.K.A.)
| | - Abdullah Ali Al Mushtawi
- Pharmaceutical Services Administration, King Saud Medical City, Ministry of Health, Riyadh 12746, Saudi Arabia; (H.N.A.); (A.O.A.); (A.A.A.M.); (M.S.A.); (R.F.A.); (A.K.A.)
| | - Majed Sultan Alenazy
- Pharmaceutical Services Administration, King Saud Medical City, Ministry of Health, Riyadh 12746, Saudi Arabia; (H.N.A.); (A.O.A.); (A.A.A.M.); (M.S.A.); (R.F.A.); (A.K.A.)
| | - Rakan Fahad Alamer
- Pharmaceutical Services Administration, King Saud Medical City, Ministry of Health, Riyadh 12746, Saudi Arabia; (H.N.A.); (A.O.A.); (A.A.A.M.); (M.S.A.); (R.F.A.); (A.K.A.)
| | - Abdulmajead Khalid Alanazi
- Pharmaceutical Services Administration, King Saud Medical City, Ministry of Health, Riyadh 12746, Saudi Arabia; (H.N.A.); (A.O.A.); (A.A.A.M.); (M.S.A.); (R.F.A.); (A.K.A.)
| |
Collapse
|
36
|
Sanz-Serrano J, Vettorazzi A, Muruzabal D, Azqueta A, López de Cerain A. In Vitro Genotoxicity Assessment of Functional Ingredients: Betaine, Choline, and Taurine. Foods 2021; 10:339. [PMID: 33562510 PMCID: PMC7915792 DOI: 10.3390/foods10020339] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 01/26/2021] [Accepted: 01/28/2021] [Indexed: 12/21/2022] Open
Abstract
This article focuses on a complete in vitro genotoxicity assessment of three nutrients widely used as functional ingredients in the European market: betaine, choline, and taurine. The European Food Safety Authority (EFSA) tiered approach for food additives in concordance with the safety assessment of chemicals in food developed by Food and Agriculture Organization/World Health Organization (FAO/WHO) was followed; the miniaturized Ames test in Salmonella typhimurium TA97a, TA98, TA100, TA102, and TA1535 strains (following the principles of Organization for Economic Co-operation and Development (OECD) 471), and the micronucleus test (OECD 487) in TK6 cells were performed. In addition, the in vitro standard and enzyme-modified (human 8-oxoguanine DNA glycosylase 1 (hOGG), endonuclease III (EndoIII), human alkyladenine DNA glycosylase (hAAG)) comet assay (S9-/S9+) was conducted in order to assess the potential premutagenic lesions in TK6 cells. None of the compounds produced any signs of genotoxicity in any of the conditions tested. This article increases the limited evidence available and complements the EFSA recommendations for the in vitro genotoxicity testing of nutrients.
Collapse
Affiliation(s)
- Julen Sanz-Serrano
- Department of Pharmacology and Toxicology, School of Pharmacy and Nutrition, Universidad de Navarra, Irunlarrea 1, 31008 Pamplona, Spain; (J.S.-S.); (A.V.); (D.M.); (A.L.d.C.)
| | - Ariane Vettorazzi
- Department of Pharmacology and Toxicology, School of Pharmacy and Nutrition, Universidad de Navarra, Irunlarrea 1, 31008 Pamplona, Spain; (J.S.-S.); (A.V.); (D.M.); (A.L.d.C.)
- Navarra Institute for Health Research, IdiSNA, Irunlarrea 3, 31008 Pamplona, Spain
| | - Damian Muruzabal
- Department of Pharmacology and Toxicology, School of Pharmacy and Nutrition, Universidad de Navarra, Irunlarrea 1, 31008 Pamplona, Spain; (J.S.-S.); (A.V.); (D.M.); (A.L.d.C.)
| | - Amaya Azqueta
- Department of Pharmacology and Toxicology, School of Pharmacy and Nutrition, Universidad de Navarra, Irunlarrea 1, 31008 Pamplona, Spain; (J.S.-S.); (A.V.); (D.M.); (A.L.d.C.)
- Navarra Institute for Health Research, IdiSNA, Irunlarrea 3, 31008 Pamplona, Spain
| | - Adela López de Cerain
- Department of Pharmacology and Toxicology, School of Pharmacy and Nutrition, Universidad de Navarra, Irunlarrea 1, 31008 Pamplona, Spain; (J.S.-S.); (A.V.); (D.M.); (A.L.d.C.)
- Navarra Institute for Health Research, IdiSNA, Irunlarrea 3, 31008 Pamplona, Spain
| |
Collapse
|
37
|
Nazari A, Mirian M, Aghaei M, Aliomrani M. 4-Hydroxyhalcone effects on cisplatin-induced genotoxicity model. Toxicol Res (Camb) 2021; 10:11-17. [PMID: 33613968 PMCID: PMC7885192 DOI: 10.1093/toxres/tfaa091] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 10/21/2020] [Accepted: 11/02/2020] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND The genotoxicity of cisplatin (CP) as a platinum-based antineoplastic agent due to its oxidative stress induction was well known. In this research, we examined 4-hydroxychalcone (4-HCH) as a natural food that presents flavonoid effects on reactive oxygen species (ROS) production and CP-induced in vivo genotoxicity. METHOD AND MATERIALS Cytotoxicity of CP and 4-HCH was measured on human embryonic kidney 293 cells with MTT assay. Then, intracellular ROS content at IC50 concentration of CP was measured with 2',7'-dichlorofluorescein diacetate (DCFDA) dye. Finally, 4-HCH was administered intraperitoneally at 10 and 40 mg/kg/BW doses as a pre and post-treatment schedule in a mice model of CP genotoxicity (7 mg/kg). Acridine-orange-stained bone marrow cells were quantified for micronucleus presence examination. RESULTS The calculated IC50 of CP and 4-HCH were reported around 19.4 and 133.6 μM, respectively, on HEK293 cells. Also, it was observed that 4-HCH at 0.2, 2 and 10 μM concentrations did not show obvious cytotoxicity. The fluorimetry confirmed that pre-treatment with 10 μM and co-treatment with 2 μM of 4-HCH could attenuate the CP-induced ROS production (P < 0.05 and P < 0.01, respectively). Also, the lowest micronucleated cells were seen in 10 mg/kg 4-HCH-treated group after CP exposure (39 ± 7.9, P < 0.0001). DISCUSSION Our results demonstrated the antigenotoxic action of 4-HCH in CP-treated mice bone marrow cells for the first time in both concentrations of 10 and 40 mg/kg especially in the form of co-treatment. Further studies required clinical application of this compound in a combination of CP to attenuate the normal cells' genotoxicity side effects.
Collapse
Affiliation(s)
- Aref Nazari
- Toxicology M.SC Candidate, Isfahan University of Medical Sciences and Health Services, Isfahan 83714, Iran
| | - Mina Mirian
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Isfahan University of Medical Sciences and Health Services, Isfahan 83714, Iran
| | - Mahmoud Aghaei
- Department of Clinical Biochemistry, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan 83714, Iran
| | - Mehdi Aliomrani
- Department of Toxicology and Pharmacology and Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences and Health Services, Isfahan 83714, Iran
| |
Collapse
|
38
|
Balakin VE, Rozanova OM, Smirnova EN, Belyakova TA, Shemyakov AE, Zaichkina SI, Sorokina SS, Dyukina AR. The Effect of Low and Medium Doses of Proton Pencil Scanning Beam on the Blood-Forming Organs during Total Irradiation of Mice. DOKL BIOCHEM BIOPHYS 2020; 494:231-234. [PMID: 33119823 DOI: 10.1134/s1607672920050026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/08/2020] [Accepted: 05/11/2020] [Indexed: 11/22/2022]
Abstract
The aim of this work was to study the effect of proton pencil beam scanning in the Bragg peak in the dose range of 0.1-1.5 Gy on the induction of cytogenetic damage in the bone marrow, reactive oxygen species (ROS) production in whole blood, and the state of lymphoid organs after total body irradiation of mice. Irradiation was carried out in the Prometeus proton synchrotron (Protvino) in the Bragg peak with proton energy at the output of 90-116 MeV. It was found that, under irradiation of mice in the range of low and medium doses of proton pencil beam scanning in the Bragg peak, the relative biological effectiveness (RBE) according to the criterion of cytogenetic changes was 1.15. In addition, it was found that the pathophysiological effect on the lymphoid organs and the production of ROS by blood cells were different as compared with the effect of X-rays.
Collapse
Affiliation(s)
- V E Balakin
- Physical Technical Center, Lebedev Physical Institute, Russian Academy of Sciences, Protvino, Moscow oblast, Russia
| | - O M Rozanova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow oblast, Russia.
| | - E N Smirnova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow oblast, Russia
| | - T A Belyakova
- Physical Technical Center, Lebedev Physical Institute, Russian Academy of Sciences, Protvino, Moscow oblast, Russia.
| | - A E Shemyakov
- Physical Technical Center, Lebedev Physical Institute, Russian Academy of Sciences, Protvino, Moscow oblast, Russia.,Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow oblast, Russia
| | - S I Zaichkina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow oblast, Russia
| | - S S Sorokina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow oblast, Russia
| | - A R Dyukina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow oblast, Russia
| |
Collapse
|
39
|
Chen Y, Huo J, Liu Y, Zeng Z, Zhu X, Chen X, Wu R, Zhang L, Chen J. Development of a novel flow cytometry-based approach for reticulocytes micronucleus test in rat peripheral blood. J Appl Toxicol 2020; 41:595-606. [PMID: 33067908 DOI: 10.1002/jat.4068] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 08/25/2020] [Accepted: 08/25/2020] [Indexed: 12/14/2022]
Abstract
The micronucleus test (MNT) is the most widely applied short-term assay to detect clastogens or spindle disruptors. The use of flow cytometry (FCM) has been reported for micronucleated erythrocytes scoring in peripheral blood. The aim of this study was to develop a novel and practical protocol for MNT in rat peripheral blood by FCM, with the method validation. CD71-fluorescein isothiocyanate and DRAQ5 were adopted for the fluorescent staining of proteins and DNA, respectively, to detect micronuclei. To validate the method, groups of male Sprague-Dawley rats (five per group) received two oral gavage doses at 0 and 24 h of six chemicals (four positive mutagens: ethyl methanesulphonate [EMS], cyclophosphamide [CP], colchicine [COL], and ethyl nitrosourea [ENU]; two nongenotoxic chemicals: sodium saccharin and eugenol). Blood samples were collected from the tail vein before and on the five continuous days after treatments; all of which were analyzed for micronuclei presence by both the manual (Giemsa staining) and FCM methods. The FCM-based method consistently demonstrated highly sensitive responses for micronucleus detection at all concentrations and all time points for EMS, CP, COL, and ENU. Sodium saccharin and eugenol could be identified as negative in this protocol. Results obtained with the FCM-based method correlated well with the micronucleus frequencies (r = 0.659-0.952), and the proportion of immature erythrocytes (r = 0.915-0.981) tested by Giemsa staining. The method reported here, with easy operation, low background, and requirement for a regular FCM, could be an efficient system for micronucleus scoring.
Collapse
Affiliation(s)
- Yiyi Chen
- Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, China.,Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province, Sichuan University, Chengdu, China
| | - Jiao Huo
- Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, China.,Department of Nutrition and Food Safety, Chongqing Center for Disease Control and Prevention, Chongqing, China
| | - Yunjie Liu
- Graduate Department, West China School of Public Health, Sichuan University, Chengdu, China
| | - Zhu Zeng
- Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, China.,Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province, Sichuan University, Chengdu, China
| | - Xuejiao Zhu
- Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, China.,Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province, Sichuan University, Chengdu, China
| | - Xuxi Chen
- Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, China.,Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province, Sichuan University, Chengdu, China
| | - Rui Wu
- Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, China.,Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province, Sichuan University, Chengdu, China
| | - Lishi Zhang
- Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, China.,Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province, Sichuan University, Chengdu, China
| | - Jinyao Chen
- Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, China.,Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province, Sichuan University, Chengdu, China
| |
Collapse
|
40
|
Cao Y, Wang T, Xi J, Zhang G, Wang T, Liu W, You X, Zhang X, Xia Z, Luan Y. PIG-A gene mutation as a genotoxicity biomarker in human population studies: An investigation in lead-exposed workers. Environ Mol Mutagen 2020; 61:611-621. [PMID: 32285465 DOI: 10.1002/em.22373] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 03/23/2020] [Accepted: 04/03/2020] [Indexed: 05/21/2023]
Abstract
The rodent Pig-a gene mutation assay has demonstrated remarkable sensitivity in identifying in vivo mutagens, while much less is known about the value of the human PIG-A assay for risk assessment. To obtain more evidence of its potential as a predictive biomarker for carcinogen exposure, we investigated PIG-A mutant frequencies (MFs), along with performing the Comet assay and micronucleus (MN) test, in 267 workers occupationally exposed to lead. Multivariate Poisson regression showed that total red blood cell PIG-A MFs were significantly higher in lead-exposed workers (10.90 ± 10.7 × 10-6 ) than in a general population that we studied previously (5.25 ± 3.6 × 10-6 ) (p < .0001). In contrast, there was no increase in lymphocyte MN frequency or in DNA damage as measured by percentage comet tail intensity in whole blood cells. Current year worker blood lead levels (BLL), an exposure biomarker, were elevated (232.6 ± 104.6 μg/L, median: 225.4 μg/L); a cumulative blood lead index (CBLI) also was calculated based on a combination of current and historical worker BLL data. Chi-square testing indicated that PIG-A MFs were significantly related to CBLI (p = .0249), but independent of current year BLL (p = .4276). However, % comet tail intensity and MN frequencies were better associated with current year BLL than CBLI. This study indicates that the PIG-A assay could serve as biomarker to detect the genotoxic effects of lead exposure and demonstrates that a battery of genotoxicity biomarkers having mechanistic complementarity may be useful for comprehensively monitoring human carcinogenic risk.
Collapse
Affiliation(s)
- Yiyi Cao
- School of Public Health, Hongqiao International Institute of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tuanwei Wang
- Department of Occupational Health & Toxicology, School of Public Health, Shanghai Medical College of Fudan University, Shanghai, China
| | - Jing Xi
- School of Public Health, Hongqiao International Institute of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guanghui Zhang
- Department of Occupational & Environmental Health, School of Public Health, Xinxiang Medical University, Xinxiang, Henan Province, China
| | - Tongshuai Wang
- Department of Occupational Health & Toxicology, School of Public Health, Shanghai Medical College of Fudan University, Shanghai, China
| | - Weiying Liu
- School of Public Health, Hongqiao International Institute of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xinyue You
- School of Public Health, Hongqiao International Institute of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - XinYu Zhang
- School of Public Health, Hongqiao International Institute of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhaolin Xia
- Department of Occupational Health & Toxicology, School of Public Health, Shanghai Medical College of Fudan University, Shanghai, China
| | - Yang Luan
- School of Public Health, Hongqiao International Institute of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
41
|
Kazemi R, Hosseinimehr SJ. Radioprotective Effect of Pioglitazone Against Genotoxicity Induced by Ionizing Radiation in Healthy Human Lymphocytes. Cardiovasc Hematol Agents Med Chem 2020; 19:72-75. [PMID: 32448107 DOI: 10.2174/1871525718666200525005231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 04/23/2020] [Accepted: 05/04/2020] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Pioglitazone (PG) is used to control high blood sugar in patients with type 2 diabetes mellitus. PG acts as a peroxisome proliferator-activated receptor γ agonist. In addition to the insulin-sensitizing effect, PG possesses anti-inflammatory effect. In this study, the protective effect of PG was evaluated against DNA damage induced by ionizing radiation in healthy human lymphocytes. METHODS The microtubes containing human whole blood were treated with PG at various concentrations (1-50 μM) for three hours. Then, the blood samples were irradiated with X-ray. Lymphocytes were cultured for determining the frequency of micronuclei as a genotoxicity biomarker in binucleated lymphocytes. RESULTS The mean percentage of micronuclei was significantly increased in human lymphocytes when exposed to IR, while it was decreased in lymphocytes pre-treated with PG. The maximum reduction in the frequency of micronuclei in irradiated lymphocytes was observed at 5 μM of PG treatment (48% decrease). CONCLUSION The anti-inflammatory property suggested the mechanism action of PG for protecting human lymphocytes against genotoxicity induced by ionizing radiation.
Collapse
Affiliation(s)
- Roya Kazemi
- Department of Pharmacy, Ramsar Campus, Mazandaran University of Medical Sciences, Ramsar, Iran
| | - Seyed J Hosseinimehr
- Department of Radiopharmacy, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| |
Collapse
|
42
|
Franco-Ramos RS, López-Romero CA, Torres-Ortega H, Oseguera-Herrera D, Lamoreaux-Aguayo JP, Molina-Noyola D, Juárez-Vázquez CI, Torres-Bugarín O. Evaluation of Anti-Cytotoxic and Anti-Genotoxic Effects of Nigella sativa through a Micronucleus Test in BALB/c Mice. Nutrients 2020; 12:E1317. [PMID: 32384595 DOI: 10.3390/nu12051317] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/22/2020] [Accepted: 04/24/2020] [Indexed: 12/19/2022] Open
Abstract
Nigella sativa (N. sativa) is a medicinal plant used for its therapeutic pharmacological effects such as anti-inflammatory, antioxidant, anticancer, antidiabetic, and immunomodulation. This study explored the anti-cytotoxic and anti-genotoxic effect of N. sativa through a micronucleus test (MNT) of BALB/c mice peripheral blood. Using 6-to-8-week-old healthy male BALB/c mice, four groups were formed: (1) Control (sterile water), single-dose 2 mg/kg/intraperitoneal (i.p); (2) N. sativa oil, 500 mg/kg/24 h/7 days/i.p; (3) Cisplatin (CP), single-dose 2 mg/kg/subcutaneous (s.c); (4) N. sativa + CP with their respective dosage. When evaluating polychromatic erythrocytes (PCE), a biomarker of cytotoxicity, the group treated with N. sativa + CP experienced an increase in the frequency of PCE, which demonstrated the recovery of bone marrow and modulation of cell proliferation. The analysis of micronucleated polychromatic erythrocytes (MNPCE), an acute genotoxicity biomarker, showed similar frequency of MNPCE within the groups except in CP, but, in the N. sativa + CP group, the frequency of MNPCE decreased and then regulated. Finally, the frequency of micronucleated erythrocytes (MNE), a biomarker of genotoxicity, the supplementation of N. sativa oil did not induce genotoxic damage in this model. Thus, we conclude that N. sativa has both cytoprotective, genoprotective effects and modulates cell proliferation in BALB/c mice.
Collapse
|
43
|
Souza DVD, Claudio SR, Da Silva CLF, Marangoni KP, Peres RC, Ribeiro DA. Genomic Instability in Peripheral Blood and Buccal Mucosal Cells of Marijuana Smokers: The Impact of Tobacco Smoke. Asian Pac J Cancer Prev 2020; 21:1235-1239. [PMID: 32458627 PMCID: PMC7541859 DOI: 10.31557/apjcp.2020.21.5.1235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Indexed: 11/25/2022] Open
Abstract
Background: The aim of this study was to evaluate cytotoxic, mutagenic and genotoxic effects on buccal mucosa and peripheral blood cells from marijuana and tobacco smokers. Methods: For this purpose, a total of 45 volunteers were distributed into four groups: CTRL group (control): individuals who did not smoke marijuana or tobacco (n = 11); Group M: Marijuana smokers (n = 13); Group T: Tobacco smokers (n = 13); Group M + T: Smokers of both marijuana and tobacco (n = 08). Results: Smokers of both marijuana and tobacco led an increase of micronucleated cells on buccal mucosa when compared to control group. The occurrence of karyolysis showed significant changes in this group as well. The comet assay data revealed genetic damage in peripheral blood cells for all groups of smokers. Conclusion: In summary, our results showed that marijuana and /or tobacco are able to induce genetic damage and cytotoxicity in oral and peripheral blood cells.
Collapse
Affiliation(s)
- Daniel Vitor De Souza
- Department of Biosciences, Federal University of Sao Paulo, UNIFESP, Santos, SP, Brazil
| | - Samuel Rangel Claudio
- Department of Biosciences, Federal University of Sao Paulo, UNIFESP, Santos, SP, Brazil
| | | | | | | | - Daniel Araki Ribeiro
- Department of Biosciences, Federal University of Sao Paulo, UNIFESP, Santos, SP, Brazil
| |
Collapse
|
44
|
Timoumi R, Amara I, Ayed Y, Ben Salem I, Abid-Essefi S. Triflumuron induces genotoxicity in both mice bone marrow cells and human Colon cancer cell line. Toxicol Mech Methods 2020; 30:438-449. [PMID: 32312157 DOI: 10.1080/15376516.2020.1758981] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Triflumuron (TFM) is an insect growth regulator (IGR), an insecticide commonly used over the world. It is known for its several toxic manifestations, such as reprotoxicity, immunotoxicity and hematotoxicity, which could affect public health. However, studies that reveal its toxic effects on mammalians are limited. To reach this purpose, our study aimed to elucidate the eventual genotoxic effects of TFM in mice bone marrow cells and in HCT 116 cells after a short term exposition. TFM was administered intraperitoneally to Balb/C male mice at doses of 250, 350 and 500 mg/kg bw for 24 h. Genotoxicity was monitored in bone marrow cells using the comet test, the micronucleus test and the chromosome aberration assay. Our results showed that TFM induced DNA damages in a dose-dependent manner. This genotoxicity was confirmed also in vitro on human intestinal cells HCT 116 using the comet test. It was then asked whether this genotoxicity induced by TFM could be due to an oxidative stress. Thus, we found that TFM significantly decreased HCT 116 cell viability. In addition, it induced the generation of reactive oxygen species (ROS) followed by lipid peroxidation as revealed by the increase in the malondialdehyde (MDA) levels. Similarly, the activation of the antioxidant enzymes (catalase and superoxide dismutase) was also observed. Our results indicated that, in our experimental conditions, TFM had a genotoxic effect on bone morrow cells and in HCT 116 cells. Moreover, we demonstrated that this genotoxicity passes through an oxidative stress.
Collapse
Affiliation(s)
- Rim Timoumi
- Faculty of Dental Medicine, Laboratory for Research on Biologically Compatible Compounds (LRSBC), University of Monastir, Monastir, Tunisia.,Higher Institute of Biotechnology of Monastir, University of Monastir, Monastir, Tunisia
| | - Ines Amara
- Faculty of Dental Medicine, Laboratory for Research on Biologically Compatible Compounds (LRSBC), University of Monastir, Monastir, Tunisia.,Higher Institute of Biotechnology of Monastir, University of Monastir, Monastir, Tunisia
| | - Yossra Ayed
- Faculty of Dental Medicine, Laboratory for Research on Biologically Compatible Compounds (LRSBC), University of Monastir, Monastir, Tunisia
| | - Intidhar Ben Salem
- Faculty of Dental Medicine, Laboratory for Research on Biologically Compatible Compounds (LRSBC), University of Monastir, Monastir, Tunisia
| | - Salwa Abid-Essefi
- Faculty of Dental Medicine, Laboratory for Research on Biologically Compatible Compounds (LRSBC), University of Monastir, Monastir, Tunisia
| |
Collapse
|
45
|
Varona-Uribe M, Ibáñez-Pinilla M, Briceno-Ayala L, Herrera D, Chuaire-Noack L, Martínez-Agüero M, Sánchez Corredor MC, Palma-Parra R, Narvaez D, Groot de Restrepo H. Biomarkers of susceptibility and effect in car painters exposed to organic solvents. Colomb Med (Cali) 2020; 51:e3646. [PMID: 32952228 PMCID: PMC7467118 DOI: 10.25100/cm.v51i1.3646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Introduction Car painters are routinely exposed to organic solvents classified as carcinogenic and mutagenic substances. Objective To characterize the population susceptibility and evaluate the genotoxic effects of exposure to organic solvents. Methods A cross-sectional study comparing a group of car painters exposed to organic solvents with a non-exposed group. CYP2E1 polymorphisms and the presence of micronuclei in lymphocytes were determined. Results One hundred twenty-two workers participated in the study: 62 who worked in car paint shops and were exposed to solvents, and 60 who were not exposed. There were statistically significant differences between the two groups regarding micronucleated cells and nucleoplasmic bridges frequencies (p= 0.042 and p= 0.046, respectively; exact likelihood ratio). Significant differences were found at the interaction between the CYP2E1 genotype c1c1 and occupational exposure to solvents, with higher frequencies of micronuclei (p= 0.013) and micronucleated cells (p= 0.015). However, when the frequencies of micronuclei, micronucleated cells and nucleoplasmic bridges in the exposure group were compared between the c1c1 and c2c2/c1c2 allele groups of the CYP2E1 polymorphism, statistically significant differences were found. Conclusions This study confirms that when workers with CYP2E1 polymorphisms, specifically the c1c1 genotype, are exposed to organic solvents, they are more likely to have somatic cell mutations, a condition associated with increased susceptibility to diseases such as cancer.
Collapse
Affiliation(s)
- Marcela Varona-Uribe
- Universidad del Rosario, Escuela de Medicina y Ciencias de la Salud, Bogotá, Colombia
| | | | | | - Diego Herrera
- Universidad del Rosario, Escuela de Medicina y Ciencias de la Salud, Bogotá, Colombia
| | - Lilian Chuaire-Noack
- Universidad del Valle, Facultad de Salud, Escuela de Ciencias Básicas, Cali, Colombia
| | - María Martínez-Agüero
- Universidad del Rosario, Facultad de Ciencias Naturales y Matemáticas, Bogotá, Colombia
| | | | | | - Diana Narvaez
- Universidad de los Andes, Laboratorio de Genética Humana, Bogotá, Colombia
| | | |
Collapse
|
46
|
Martins Longaretti L, Luciano JA, Strapazzon G, Pereira M, Damiani AP, Rohr P, Rigo FK, de Oliveira CA, Steiner BT, Vilela TC, Trevisan G, de Andrade VM. Anti-genotoxic and anti-mutagenic effects of melatonin supplementation in a mouse model of melanoma. Drug Chem Toxicol 2020; 45:515-522. [PMID: 32063063 DOI: 10.1080/01480545.2020.1726380] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Melanoma, an aggressive skin cancer originating from melanocytes, can metastasize to the lungs, liver, cortex, femur, and spinal cord, ultimately resulting in DNA mutagenic effects. Melatonin is an endogenous hormone and free radical scavenger that possesses the ability to protect the DNA and to exert anti-proliferative effects in melanoma cells. The aim of this study was to evaluate the effects of B16F10 melanoma cells and the effects of melatonin supplementation on genotoxic parameters in murine melanoma models. Thirty-two male C57Bl/6 mice were divided in the following four groups: PBS + vehicle (n = 6), melanoma + vehicle (n = 10), PBS + melatonin (n = 6), and melanoma + melatonin (n = 10). The melanoma groups received a B16F10 cell injection, and melatonin was administered during 60 days. After treatment, tumor sizes were evaluated. DNA damage within the peripheral blood, lungs, liver, cortex, and spinal cord was determined using comet assay, and the mutagenicity within the bone marrow was determined using the micronucleus test. B16F10 cells effectively induced DNA damage in all tissues, and melatonin supplementation decreased DNA damage in the blood, liver, cortex, and spinal cord. This hormone exerts anti-tumor activity via its anti-proliferative, antioxidative, and pro-apoptotic effects. As this result was not observed within the lungs, we hypothesized that melatonin can induce apoptosis in cancer cells, and this was not evaluated by comet assay. This study provides evidence that melatonin can reduce the genotoxicity and mutagenicity caused by B16F10 cells.
Collapse
Affiliation(s)
- Luiza Martins Longaretti
- Laboratório de Biomedicina Translacional, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense - UNESC, Criciúma, Brazil
| | - Jéssica Aparecida Luciano
- Laboratório de Biomedicina Translacional, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense - UNESC, Criciúma, Brazil
| | - Giulia Strapazzon
- Laboratório de Biomedicina Translacional, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense - UNESC, Criciúma, Brazil
| | - Maiara Pereira
- Laboratório de Biomedicina Translacional, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense - UNESC, Criciúma, Brazil
| | - Adriani Paganini Damiani
- Laboratório de Biomedicina Translacional, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense - UNESC, Criciúma, Brazil
| | - Paula Rohr
- Laboratório de Biomedicina Translacional, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense - UNESC, Criciúma, Brazil
| | - Flávia Karine Rigo
- Laboratório de Fisiopatologia Exprimental, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense - UNESC, Criciúma, Brazil
| | - Camila Alves de Oliveira
- Laboratório de Biomedicina Translacional, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense - UNESC, Criciúma, Brazil
| | - Bethina Trevisol Steiner
- Laboratório de Fisiopatologia Exprimental, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense - UNESC, Criciúma, Brazil
| | - Thais Ceresér Vilela
- Laboratório de Biomedicina Translacional, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense - UNESC, Criciúma, Brazil
| | - Gabriela Trevisan
- Laboratory of Neuropsychopharmacology and Neurotoxicity, Graduate Program in Pharmacology, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Vanessa Moraes de Andrade
- Laboratório de Biomedicina Translacional, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense - UNESC, Criciúma, Brazil
| |
Collapse
|
47
|
Chen R, Zhou C, Cao Y, Xi J, Ohira T, He L, Huang P, You X, Liu W, Zhang X, Ma S, Xie T, Chang Y, Luan Y. Assessment of Pig-a, Micronucleus, and Comet Assay Endpoints in Tg.RasH2 Mice Carcinogenicity Study of Aristolochic Acid I. Environ Mol Mutagen 2020; 61:266-275. [PMID: 31443125 DOI: 10.1002/em.22325] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 08/16/2019] [Accepted: 08/19/2019] [Indexed: 06/10/2023]
Abstract
A newly developed in vivo Pig-a gene mutation assay displays great potential for integration into genotoxicity tests. To obtain more evidence for application of the Pig-a assay, we integrated this assay, micronucleus test in peripheral blood (MN-pb test) and bone marrow (MN-bm test), as well as a Comet assay into a transgenic RasH2 mice carcinogenicity study. Fourteen male RasH2 mice and five wild-type (WT) mice were treated with a strong mutagen aristolochic acid I at a dose of 5 mg/kg/day for 4 consecutive weeks. Mice recovered in 5 weeks. Peripheral bloods were collected for Pig-a assay, MN-pb test, and Comet assay at several time points, while bone marrow and target organs were harvested for the MN-bm test and pathological diagnosis after mice were euthanized. Finally, 13 of the 14 RasH2 mice developed squamous cell carcinomas in the forestomach, while there were no carcinomas in the WT mice. Pig-a mutant frequencies (MFs) consecutively increased throughout the study to a maximum value of approximately 63-fold more than background. These frequencies were relative to the incidence, size, and malignant degree of tumors. Micronucleated reticulocytes increased from Day 1 to Day 49, before returning to background levels. No positive responses were observed in either the MN-bm test or the Comet assay. Results suggested that, when compared with the other two tests, the Pig-a assay persistently contributed to sustaining MFs, enhanced detection sensitivity due to the accumulation of Pig-a mutations, and demonstrated better predictability for tumorigenicity. Environ. Mol. Mutagen. 61:266-275, 2020. © 2019 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Ruixue Chen
- School of Public Health, Hongqiao International Institute of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Changhui Zhou
- Shanghai InnoStar Bio-Tech Co., Ltd., National Shanghai Center for New Drug Safety Evaluation and Research, Shanghai, People's Republic of China
| | - Yiyi Cao
- School of Public Health, Hongqiao International Institute of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- Joint Laboratory on Herbal Safety, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Jing Xi
- School of Public Health, Hongqiao International Institute of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- Joint Laboratory on Herbal Safety, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Toko Ohira
- Shanghai InnoStar Bio-Tech Co., Ltd., National Shanghai Center for New Drug Safety Evaluation and Research, Shanghai, People's Republic of China
| | - Liang He
- Shanghai InnoStar Bio-Tech Co., Ltd., National Shanghai Center for New Drug Safety Evaluation and Research, Shanghai, People's Republic of China
| | - Pengcheng Huang
- Shanghai InnoStar Bio-Tech Co., Ltd., National Shanghai Center for New Drug Safety Evaluation and Research, Shanghai, People's Republic of China
| | - Xinyue You
- School of Public Health, Hongqiao International Institute of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Weiying Liu
- School of Public Health, Hongqiao International Institute of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Xinyu Zhang
- School of Public Health, Hongqiao International Institute of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- Joint Laboratory on Herbal Safety, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Shuangcheng Ma
- Joint Laboratory on Herbal Safety, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- National Institutes for Food and Drug Control, Beijing, China
| | - Tianpei Xie
- Joint Laboratory on Herbal Safety, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Standard Technology Co., Ltd., Shanghai, People's Republic of China
| | - Yan Chang
- Shanghai InnoStar Bio-Tech Co., Ltd., National Shanghai Center for New Drug Safety Evaluation and Research, Shanghai, People's Republic of China
| | - Yang Luan
- School of Public Health, Hongqiao International Institute of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- Joint Laboratory on Herbal Safety, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| |
Collapse
|
48
|
Foster KR, Miyakoshi J, Verschaeve L. Comments on the "Evaluation of the Genotoxicity of Cell Phone Radiofrequency Radiation in Male and Female Rats and Mice Following Subchronic Exposure" by Smith-Roe et al. Environ Mol Mutagen 2020; 61:291-293. [PMID: 31883146 DOI: 10.1002/em.22353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 12/22/2019] [Indexed: 06/10/2023]
Affiliation(s)
- Kenneth R Foster
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Junji Miyakoshi
- Research Institute for Sustainable Humanosphere, Kyoto University, Kyoto, Japan
| | - Luc Verschaeve
- Service Risk and Health Impact Assessment, Sciensano, Brussels, Belgium
| |
Collapse
|
49
|
Rodriguez-Garraus A, Azqueta A, Vettorazzi A, López de Cerain A. Genotoxicity of Silver Nanoparticles. Nanomaterials (Basel) 2020; 10:E251. [PMID: 32023837 PMCID: PMC7075128 DOI: 10.3390/nano10020251] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/22/2020] [Accepted: 01/24/2020] [Indexed: 12/18/2022]
Abstract
Silver nanoparticles (AgNPs) are widely used in diverse sectors such as medicine, food, cosmetics, household items, textiles and electronics. Given the extent of human exposure to AgNPs, information about the toxicological effects of such products is required to ensure their safety. For this reason, we performed a bibliographic review of the genotoxicity studies carried out with AgNPs over the last six years. A total of 43 articles that used well-established standard assays (i.e., in vitro mouse lymphoma assays, in vitro micronucleus tests, in vitro comet assays, in vivo micronucleus tests, in vivo chromosome aberration tests and in vivo comet assays), were selected. The results showed that AgNPs produce genotoxic effects at all DNA damage levels evaluated, in both in vitro and in vivo assays. However, a higher proportion of positive results was obtained in the in vitro studies. Some authors observed that coating and size had an effect on both in vitro and in vivo results. None of the studies included a complete battery of assays, as recommended by ICH and EFSA guidelines, and few of the authors followed OECD guidelines when performing assays. A complete genotoxicological characterization of AgNPs is required for decision-making.
Collapse
Affiliation(s)
- Adriana Rodriguez-Garraus
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Nutrition, Universidad de Navarra, Irunlarrea 1, 31008 Pamplona, Spain; (A.R.-G.); (A.V.); (A.L.d.C.)
| | - Amaya Azqueta
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Nutrition, Universidad de Navarra, Irunlarrea 1, 31008 Pamplona, Spain; (A.R.-G.); (A.V.); (A.L.d.C.)
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain
| | - Ariane Vettorazzi
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Nutrition, Universidad de Navarra, Irunlarrea 1, 31008 Pamplona, Spain; (A.R.-G.); (A.V.); (A.L.d.C.)
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain
| | - Adela López de Cerain
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Nutrition, Universidad de Navarra, Irunlarrea 1, 31008 Pamplona, Spain; (A.R.-G.); (A.V.); (A.L.d.C.)
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain
| |
Collapse
|
50
|
Huo J, Liu Y, Zeng Z, Zhu X, Peng Z, Chen J, Zhang L. [Assessment of the genotoxicity of 2-methylfuran based on a multi-endpoint genotoxicity test system in vivo]. Wei Sheng Yan Jiu 2019; 48:976-1000. [PMID: 31875825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE This study was designed to determine the genotoxicity of 2-methylfuran based on a multi-endpoint genotoxicity test system. METHODS The SPF-grade male SD rats(n = 30) were randomized to six treatment groups, i. e. 4 treatment groups(25, 50, 100 and 150 mg/kg), a control group(vegetable oil) and a positive groups(N-ethyl-N-nitrosourea, 80 mg/kg). All treatments were administrated by gavage for continuous 3 days. Tail vein blood for comet assay was collected at 3 h after the final administration. Pig-a gene mutation assays were performed on days 0(one day before gavage), 14 and 28. Micronucleus tests in peripheral blood using flow cytometry were performed on days 0 and 4. RESULTS A statistically significant increase in tail intensity was observed at 150 mg/kg for peripheral blood in comet assay. There was no significant difference among the groups in mutant cell frequency of erythrocytes and reticulocytes at 2 timepoints in Pig-a gene mutation assay, and no significant difference among the groups in the frequency of micronucleus in micronucleus test. CONCLUSION The result of genotoxicity tests suggested that 2-methylfuran was probably not mutagenic in vivo after acute exposure.
Collapse
Affiliation(s)
- Jiao Huo
- West China School of Public Health, Sichuan University, Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province, Chengdu 610041, China
| | - Yunjie Liu
- West China School of Public Health, Sichuan University, Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province, Chengdu 610041, China
| | - Zhu Zeng
- West China School of Public Health, Sichuan University, Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province, Chengdu 610041, China
| | - Xuejiao Zhu
- West China School of Public Health, Sichuan University, Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province, Chengdu 610041, China
| | - Zihao Peng
- West China School of Public Health, Sichuan University, Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province, Chengdu 610041, China
| | - Jinyao Chen
- West China School of Public Health, Sichuan University, Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province, Chengdu 610041, China
| | - Lishi Zhang
- West China School of Public Health, Sichuan University, Food Safety Monitoring and Risk Assessment Key Laboratory of Sichuan Province, Chengdu 610041, China
| |
Collapse
|