Abstract:
:The effects of ultrasound on the cytoskeleton, comprising microtubules, had been studied decades ago. Nonetheless, very little attention has been paid to the effects of ultrasound on the mitotic spindle, which is also formed by microtubules. In this study, we treated human fibroblasts and human cancer cells (HeLa and MCF-7) with 1-MHz ultrasound at low intensities (70, 140, and 300 mW/cm2 ). In all cell lines, 5 min after the end of sonication, we found an intensity-dependent increase of mitotic abnormalities (including multipolar spindles). Two hours after sonication, these abnormalities were present, but at much lower frequencies. Twenty-four hours after sonication, mitotic abnormalities were at the same level of untreated samples, suggesting a transient effect due to ultrasound. Beside abnormalities of the mitotic spindle, we also observed an increase of metaphases with nonaligned chromosomes. The mitotic index of fibroblasts and HeLa cells, two hours after sonication, showed an intensity-dependent decrease; this was not observed in MCF-7 cells. In agreement with this last result, ultrasound-induced growth inhibition (which was also intensity-dependent) was more marked in fibroblasts and HeLa cells compared to MCF-7 cells. This work indicates that therapeutic ultrasound, even at intensities below the cavitation threshold, can affect genome integrity, showing the need to increase the knowledge of the potential risks of ultrasound to human health. Environ. Mol. Mutagen. 2019. © 2019 Wiley Periodicals, Inc.
journal_name
Environ Mol Mutagenjournal_title
Environmental and molecular mutagenesisauthors
Udroiu I,Coluzzi E,Bedini A,Giliberti C,Palomba R,Sgura Adoi
10.1002/em.22287subject
Has Abstractpub_date
2019-08-01 00:00:00pages
568-575issue
7eissn
0893-6692issn
1098-2280journal_volume
60pub_type
杂志文章abstract::In this study we evaluated the antigenotoxic and cytoprotective capabilities of WR-2721 [S-2-(3-aminopropylamino)-ethylphosphorothioic acid (amifostine)] in different normal tissues of BALB/c mice treated with idarubicin [4-demethoxydaunorubicin (IDA)]. The aminothiol WR-2721 is a pro-drug that requires dephosphorylat...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.1081
更新日期:2002-01-01 00:00:00
abstract::The efficiency of the micronucleus test to assess radiation-induced chromosomal damage in human spermatozoa has been investigated. Micronuclei were scored in human sperm-hamster egg hybrids at the two-cell stage, after exposure of human spermatozoa to in vitro gamma-rays at doses of 0.00, 0.10, 0.25, 0.50, 1.00, 2.00,...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.2850260407
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:Recently, high concentrations of arsenic have been documented in ground waters of Southern Assam, India. Indiscriminate smokeless tobacco consumption is a common practice in this region. Correlation between nutritional status and arsenic and smokeless tobacco-induced health effects has not been taken up in h...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.22188
更新日期:2018-06-01 00:00:00
abstract::This paper summarizes recent developments in the continuing evolution of Human Relevance Frameworks to systematically consider the weight of evidence of hypothesized modes of action in animals and their potential human relevance for both cancer and non-cancer effects. These frameworks have been developed in initiative...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章,评审
doi:10.1002/em.20369
更新日期:2008-03-01 00:00:00
abstract::Occupational exposure to coal dust causes coal workers' pneumoconiosis (CWP), which is a chronic inflammatory and fibrotic lung disease. Recently, chronic inflammation has been accepted as a crucial factor in the pathogenesis of neoplasia. The chronic inflammation provides dynamic setting for oxidative stress and form...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.20377
更新日期:2008-04-01 00:00:00
abstract::Malignant gliomas are heterogeneous populations of dynamically interacting cells. Genomic and transcriptional changes define this cellular hierarchy and allow certain tumor cells to co-opt metabolic machinery and adopt gene expression profiles that promote cellular reprogramming. Resultant expansion of privileged subp...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.21988
更新日期:2016-06-01 00:00:00
abstract::There is scientific and regulatory interest in using mutation assays in transgenic mice in safety assessments for new chemicals and drugs. Currently these assays are in the process of being validated, and protocols for routine testing are being defined. Some of the issues and results to date with regard to assay valid...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章,评审
doi:10.1002/em.2850250309
更新日期:1995-01-01 00:00:00
abstract::Occupational exposure to wood dust is associated with the occurrence of nasal cancer. In this study, we investigated micronuclei and nuclear changes (NCs: binucleates, karyorrhexis, karyolysis, and the "broken egg" effect) in exfoliated buccal cells of 20 workers exposed to wood dust and 20 age- and sex-matched contro...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.20257
更新日期:2006-12-01 00:00:00
abstract::The mutational spectrum for 28 X-ray induced mutations and 2 spontaneous mutations, previously determined by genetic and cytogenetic methods, consisted of 20 multilocus deficiencies (19 induced and 1 spontaneous) and 10 intragenic mutations (9 induced and 1 spontaneous). One of the X-ray induced intragenic mutations w...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.2850180303
更新日期:1991-01-01 00:00:00
abstract::A recent study conducted by our group showed that the NAT2 fast acetylator genotype is associated with an increasing risk for the development of colorectal cancer (CRC), especially for females. We therefore examined whether a higher risk of CRC in females with the NAT2 fast acetylator genotype was associated with the ...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.20444
更新日期:2009-03-01 00:00:00
abstract::Radiation and many chemicals have been found to induce homologous genetic recombination. Experimental systems that allow the detection and characterization of recombinagens exist in organisms as diverse as bacteria, fungi, plants, insects, and mammals. Recombination plays an important role in many biological processes...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章,评审
doi:10.1002/em.2850230614
更新日期:1994-01-01 00:00:00
abstract::The monoterpene indole alkaloid brachycerine from Psychotria brachyceras has been shown to be induced by UV and to have in vitro antioxidant activity, indicating a possible protective role against the secondary effects of this radiation. In this work, we have studied the antioxidant properties of brachycerine and a cr...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.20349
更新日期:2007-12-01 00:00:00
abstract::Although not mutagenic by Ames test, 2,5-dimethylfuran (DMF), a leading biofuel candidate, was found to induce chromosomal damage in cultured murine cells, suggesting that it may be genotoxic. We sought to prioritize the environmental and biological impacts of using DMF as a combustible biofuel. First, we assessed DMF...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.21702
更新日期:2012-07-01 00:00:00
abstract::DNA damage induced by physical activity and/or exercise has been reported under different conditions but not for individuals maintaining physical fitness by regular strenuous exercise. Therefore, we compared levels of DNA damage in blood leukocytes of 40 healthy individuals (35 males, 5 females) who regularly exercise...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.20457
更新日期:2009-05-01 00:00:00
abstract::DNA damage and its subsequent repair occur heterogeneously throughout the genome, which reflects the nature of the damaging agents, gross chromosomal structure, the specific nucleotide sequence, and transcriptional status. We selected to investigate the repair of DNA damage in an artificial, transgenic situation. Here...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:
更新日期:1999-01-01 00:00:00
abstract::Atmospheric pollution represents a relevant environmental hazard which has been associated with considerable excess mortality, morbidity, and increased rates of respiratory diseases in humans. To date, more than 3,000 environmental chemical compounds have been identified in the ambient atmosphere, including a variety ...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:
更新日期:1997-01-01 00:00:00
abstract::The hydroxyl radical scavengers thiourea, ethanol, and dimethyl sulfoxide significantly reduced the killing of Escherichia coli elicited by low concentrations of H2O2 (resulting in mode 1 killing) when treatments with the oxidant and the scavengers were performed in a complete growth medium (K medium) but not in M9 sa...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.2850180105
更新日期:1991-01-01 00:00:00
abstract::Mutagenicity is an important toxicological endpoint that requires thorough evaluation during the industrial chemical registration process. Regulatory requirements for mutagenicity assessment in registration of industrial chemicals vary in geographic regions (and in some cases by intended application). Here we compile ...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章,评审
doi:10.1002/em.22096
更新日期:2017-06-01 00:00:00
abstract::The modulating effects of tannic acid (TA) on somatic mutation and mitotic recombination induced by methylmethanesulfonate (MMS), nitrogen mustard (HN2), and mitomycin C (MMC) were evaluated in the standard (ST) cross of the wing spot test in Drosophila melanogaster using co- and posttreatment protocols. It was shown ...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/1098-2280(2000)36:3<195::aid-em2>3.0.co;2-
更新日期:2000-01-01 00:00:00
abstract::Three carbamate insecticides (propoxur, methomyl, and aldicarb) were evaluated for their ability to induce micronuclei (MN) in vitro using cultured Chinese hamster ovary (CHO) cells, and in vivo in mouse bone marrow erythrocytes. In vitro, all three insecticides induced a significant increase in micronucleated binucle...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:
更新日期:1997-01-01 00:00:00
abstract::Iron oxide nanoparticles (ION) with superparamagnetic properties hold great promise for use in various biomedical applications; specific examples include use as contrast agents for magnetic resonance imaging, in targeted drug delivery, and for induced hyperthermia cancer treatments. Increasing potential applications r...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章,评审
doi:10.1002/em.21909
更新日期:2015-03-01 00:00:00
abstract::During the development of cancer a series of specific genetic alterations have to occur in a stepwise fashion to transform a normal somatic cell into a malignant tumor cell. These genetic changes can be roughly divided in two groups: mutations in proto-oncogenes that result in a constantly activated gene product and m...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:
更新日期:1999-01-01 00:00:00
abstract::The Big Blue mouse was used to investigate the role of cell proliferation in mutation fixation in the mouse back skin model of carcinogenesis. Phorbol 12-myristate 13 acetate (TPA) was applied to the dorsum of Big Blue mice to manipulate cell proliferation, and benzo[a]pyrene (BaP) or BaP-diolepoxide (BPDE) was applie...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/1098-2280(2000)35:4<319::aid-em6>3.0.co;2-
更新日期:2000-01-01 00:00:00
abstract::Exposure to emissions from laser printers during the printing process is commonplace worldwide, both in the home and workplace environment. In the present study, cytotoxic and genotoxic effects of the emission from five low to medium-throughput laser printers were investigated with respect to the release of ozone (O(3...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.20695
更新日期:2012-03-01 00:00:00
abstract::A cross-sectional study was designed to determine whether occupational exposure to a complex mixture of pesticides results in a significant increase of DNA damage in farmers chronically exposed to pesticides in open fields. Leukocytes from 47 agriculture workers exposed to pesticides and 50 controls were evaluated wit...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.20435
更新日期:2009-01-01 00:00:00
abstract::A quantitative structure-activity relationship (QSAR) has been formulated for 15 polycyclic aromatic nitro compounds acting on E. coli PQ37. Upon damage of DNA by these substances beta-galactosidase is induced and can be easily assayed colorimetrically, hence, this is a short-term test for mutagenicity. The QSAR (log ...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.2850200210
更新日期:1992-01-01 00:00:00
abstract::Arsenic is an environmental pollutant capable of causing oxidative stress, disturbance of metabolism, and cancer development. The present study was undertaken to investigate the effects of exposure to sodium arsenite on the glutathione pool, lipid peroxidation, protein carbonyl levels, global DNA methylation, and acti...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.20328
更新日期:2007-10-01 00:00:00
abstract::Lead is a widely existing environmental pollutant with potential carcinogenicity. To investigate the association of blood lead level (B-Pb) with potential chromosomal damage and cancer, we analyzed micronucleus (MN) frequency of peripheral blood lymphocytes (PBLs) and the methylation status of six human tumor suppress...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.22194
更新日期:2018-07-01 00:00:00
abstract::Cost-effective, high-throughput epigenomic technologies have begun to emerge, rapidly replacing the candidate gene approach to molecular epidemiology and offering a comprehensive strategy for the study of epigenetics in human subjects. Epigenome-wide association studies (EWAS) provide new opportunities for advancing o...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章,评审
doi:10.1002/em.21762
更新日期:2013-08-01 00:00:00
abstract::Aldehydes are widespread environmental and industrial compounds, able to stimulate a range of adverse health effects (e.g., general toxicity, allergenic reactions, mutagenicity, and carcinogenicity). We have previously presented quantitative structure-activity relationships (QSARs) for the genotoxicity of simple and a...
journal_title:Environmental and molecular mutagenesis
pub_type: 杂志文章
doi:10.1002/em.20158
更新日期:2005-12-01 00:00:00