Peter Møller , Regitze Sølling Wils , Emilio Di Ianni , Claudia Andrea Torero Gutierrez , Martin Roursgaard , Nicklas Raun Jacobsen
{"title":"Genotoxicity of multi-walled carbon nanotube reference materials in mammalian cells and animals","authors":"Peter Møller , Regitze Sølling Wils , Emilio Di Ianni , Claudia Andrea Torero Gutierrez , Martin Roursgaard , Nicklas Raun Jacobsen","doi":"10.1016/j.mrrev.2021.108393","DOIUrl":"10.1016/j.mrrev.2021.108393","url":null,"abstract":"<div><p>Carbon nanotubes (CNTs) were the first nanomaterials to be evaluated by the International Agency for Research on Cancer (IARC). The categorization as possibly carcinogenic agent to humans was only applicable to multi-walled carbon nanotubes called MWCNT-7. Other types of CNTs were not classifiable because of missing data and it was not possible to pinpoint unique CNT characteristics that cause cancer. Importantly, the European Commission’s Joint Research Centre (JRC) has established a repository of industrially manufactured nanomaterials that encompasses at least four well-characterized MWCNTs called NM-400 to NM-403 (original JRC code). This review summarizes the genotoxic effects of these JRC materials and MWCNT-7. The review consists of 36 publications with results on cell culture experiments (22 publications), animal models (9 publications) or both (5 publications). As compared to the publications in the IARC monograph on CNTs, the current database represents a significant increase as there is only an overlap of 8 publications. However, the results come mainly from cell cultures and/or measurements of DNA strand breaks by the comet assay and the micronucleus assay (82 out of 97 outcomes). A meta-analysis of cell culture studies on DNA strand breaks showed a genotoxic response by MWCNT-7, less consistent effect by NM-400 and NM-402, and least consistent effect by NM-401 and NM-403. Results from other <em>in vitro</em> tests indicate strongest evidence of genotoxicity for MWCNT-7. There are too few observations from animal models and humans to make general conclusions about genotoxicity.</p></div>","PeriodicalId":49789,"journal":{"name":"Mutation Research-Reviews in Mutation Research","volume":"788 ","pages":"Article 108393"},"PeriodicalIF":5.3,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mrrev.2021.108393","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39715537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Goran Gajski , Sanda Ravlić , Roger Godschalk , Andrew Collins , Maria Dusinska , Gunnar Brunborg
{"title":"Application of the comet assay for the evaluation of DNA damage in mature sperm","authors":"Goran Gajski , Sanda Ravlić , Roger Godschalk , Andrew Collins , Maria Dusinska , Gunnar Brunborg","doi":"10.1016/j.mrrev.2021.108398","DOIUrl":"10.1016/j.mrrev.2021.108398","url":null,"abstract":"<div><p><span><span><span>DNA<span><span> integrity is considered an important parameter of semen quality and is of significant value as a predictor of male fertility. Currently, there are several methods that can assess sperm DNA integrity. One such assay is the </span>comet assay, or single-cell gel electrophoresis, which is a simple, sensitive, reliable, quick and low-cost technique that is used for measuring </span></span>DNA strand<span> breaks and repair at the level of individual cells. Although the comet assay is usually performed with somatic cells<span> from different organs, the assay has the ability to detect genotoxicity in germ cells at different stages of </span></span></span>spermatogenesis. Since the ability of sperm to remove DNA damage differs between the stages, interpretation of the results is dependent on the cells used. In this paper we give an overview on the use and applications of the comet assay on mature sperm and its ability to detect sperm DNA damage in both animals and humans. Overall, it can be concluded that the presence in sperm of significantly damaged DNA, assessed by the comet assay, is related to </span>male infertility and seems to reduce live births. Although there is some evidence that sperm DNA damage also has a long-term impact on offspring’s health, this aspect of DNA damage in sperm is understudied and deserves further attention. In summary, the comet assay can be applied as a useful tool to study effects of genotoxic exposures on sperm DNA integrity in animals and humans.</p></div>","PeriodicalId":49789,"journal":{"name":"Mutation Research-Reviews in Mutation Research","volume":"788 ","pages":"Article 108398"},"PeriodicalIF":5.3,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39576795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Inflammatory cytokine storms severity may be fueled by interactions of micronuclei and RNA viruses such as COVID-19 virus SARS-CoV-2. A hypothesis","authors":"Micheline Kirsch-Volders , Michael Fenech","doi":"10.1016/j.mrrev.2021.108395","DOIUrl":"10.1016/j.mrrev.2021.108395","url":null,"abstract":"<div><p>In this review we bring together evidence that (i) RNA viruses are a cause of chromosomal instability and micronuclei (MN), (ii) those individuals with high levels of lymphocyte MN have a weakened immune response and are more susceptible to RNA virus infection and (iii) both RNA virus infection and MN formation can induce inflammatory cytokine production. Based on these observations we propose a hypothesis that those who harbor elevated frequencies of MN within their cells are more prone to RNA virus infection and are more likely, through combined effects of leakage of self-DNA from MN and RNA from viruses, to escalate pro-inflammatory cytokine production via the cyclic GMP–AMP synthase (cGAS), stimulator of interferon genes (STING) and the Senescence Associated Secretory Phenotype (SASP) mechanisms to an extent that is unresolvable and therefore confers high risk of causing tissue damage by an excessive and overtly toxic immune response. The corollaries from this hypothesis are (i) those with abnormally high MN frequency are more prone to infection by RNA viruses; (ii) the extent of cytokine production and pro-inflammatory response to infection by RNA viruses is enhanced and possibly exceeds threshold levels that may be unresolvable in those with elevated MN levels in affected organs; (iii) reduction of MN frequency by improving nutrition and life-style factors increases resistance to RNA virus infection and moderates inflammatory cytokine production to a level that is immunologically efficacious and survivable.</p></div>","PeriodicalId":49789,"journal":{"name":"Mutation Research-Reviews in Mutation Research","volume":"788 ","pages":"Article 108395"},"PeriodicalIF":5.3,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8479308/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10490855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xihan Guo , Jianfei Li , Jinglun Xue , Michael Fenech , Xu Wang
{"title":"Loss of Y chromosome: An emerging next-generation biomarker for disease prediction and early detection?","authors":"Xihan Guo , Jianfei Li , Jinglun Xue , Michael Fenech , Xu Wang","doi":"10.1016/j.mrrev.2021.108389","DOIUrl":"10.1016/j.mrrev.2021.108389","url":null,"abstract":"<div><p>As human life expectancy increases substantially and aging is the primary risk factor for most chronic diseases, there is an urgent need for advancing the development of post-genomic era biomarkers that can be used for disease prediction and early detection (DPED). Mosaic loss of Y chromosome (LOY) is the state of nullisomy Y in sub-groups of somatic cells acquired from different post-zygotic development stages and onwards throughout the lifespan. Multiple large-cohort based epidemiology studies have found that LOY in blood cells is a significant risk factor for future mortality and various diseases in males. Many features intrinsic to LOY analysis may be leveraged to enhance its use as a non-invasive, sensitive, reliable, high throughput-biomarker for DPED. Here, we review the emerging literatures in LOY studies and highlight ten strengths for using LOY as a novel biomarker for genomics-driven DPED diagnostics. Meanwhile, the current limitations in this area are also discussed. We conclude by identifying some important knowledge gaps regarding the consequences of malsegregation of the Y chromosome and propose further steps that are required before clinical implementation of LOY. Taken together, we think that LOY has substantial potential as a biomarker for DPED, despite some hurdles that still need to be addressed before its integration into healthcare becomes acceptable.</p></div>","PeriodicalId":49789,"journal":{"name":"Mutation Research-Reviews in Mutation Research","volume":"788 ","pages":"Article 108389"},"PeriodicalIF":5.3,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mrrev.2021.108389","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39715534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shalja Verma , Supansa Pantoom , Janine Petters , Anand Kumar Pandey , Andreas Hermann , Jan Lukas
{"title":"A molecular genetics view on Mucopolysaccharidosis Type II","authors":"Shalja Verma , Supansa Pantoom , Janine Petters , Anand Kumar Pandey , Andreas Hermann , Jan Lukas","doi":"10.1016/j.mrrev.2021.108392","DOIUrl":"10.1016/j.mrrev.2021.108392","url":null,"abstract":"<div><p>Mucopolysaccharidosis Type II (MPS II) is an X-linked recessive genetic disorder that primarily affects male patients. With an incidence of 1 in 100,000 male live births, the disease is one of the orphan diseases. MPS II symptoms are caused by mutations in the lysosomal iduronate-2-sulfatase (<em>IDS</em>) gene. The mutations cause a loss of enzymatic performance and result in the accumulation of glycosaminoglycans (GAGs), heparan sulfate and dermatan sulfate, which are no longer degradable. This inadvertent accumulation causes damage in multiple organs and leads either to a severe neurological course or to an attenuated course of the disease, although the exact relationship between mutation, extent of GAG accumulation and disease progression is not yet fully understood. This review is intended to present current diagnostic procedures and therapeutic interventions. In times when the genetic profile of patients plays an increasingly important role in the assessment of therapeutic success and future drug design, we chose to further elucidate the impact of genetic diversity within the <em>IDS</em> gene on disease phenotype and potential implications in current diagnosis, prognosis and therapy. We report recent advances in the structural biological elucidation of I2S enzyme that that promises to improve our future understanding of the molecular damage of the hundreds of <em>IDS</em> gene variants and will aid damage prediction of novel mutations in the future.</p></div>","PeriodicalId":49789,"journal":{"name":"Mutation Research-Reviews in Mutation Research","volume":"788 ","pages":"Article 108392"},"PeriodicalIF":5.3,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mrrev.2021.108392","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39715539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ivett Berzsenyi , Vasiliki Pantazi , Barbara N. Borsos, Tibor Pankotai
{"title":"Systematic overview on the most widespread techniques for inducing and visualizing the DNA double-strand breaks","authors":"Ivett Berzsenyi , Vasiliki Pantazi , Barbara N. Borsos, Tibor Pankotai","doi":"10.1016/j.mrrev.2021.108397","DOIUrl":"10.1016/j.mrrev.2021.108397","url":null,"abstract":"<div><p>DNA double-strand breaks (DSBs) are one of the most frequent causes of initiating cancerous malformations, therefore, to reduce the risk, cells have developed sophisticated DNA repair mechanisms. These pathways ensure proper cellular function and genome integrity. However, any alteration or malfunction during DNA repair can influence cellular homeostasis, as improper recognition of the DNA damage or dysregulation of the repair process can lead to genome instability. Several powerful methods have been established to extend our current knowledge in the field of DNA repair. For this reason, in this review, we focus on the methods used to study DSB repair, and we summarize the advantages and disadvantages of the most commonly used techniques currently available for the site-specific induction of DSBs and the subsequent tracking of the repair processes in human cells. We highlight methods that are suitable for site-specific DSB induction (by restriction endonucleases, CRISPR-mediated DSB induction and laser microirradiation) as well as approaches [e.g., fluorescence-, confocal- and super-resolution microscopy, chromatin immunoprecipitation (ChIP), DSB-labeling and sequencing techniques] to visualize and follow the kinetics of DSB repair.</p></div>","PeriodicalId":49789,"journal":{"name":"Mutation Research-Reviews in Mutation Research","volume":"788 ","pages":"Article 108397"},"PeriodicalIF":5.3,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S138357422100034X/pdfft?md5=f81a0a145a51160eb30f76ff4bbea5dd&pid=1-s2.0-S138357422100034X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39576791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"WITHDRAWN: Plans for the Reflections feature in Mutation Research Reviews","authors":"G. Hoffmann","doi":"10.1016/J.MRREV.2021.108383","DOIUrl":"https://doi.org/10.1016/J.MRREV.2021.108383","url":null,"abstract":"","PeriodicalId":49789,"journal":{"name":"Mutation Research-Reviews in Mutation Research","volume":"6 1","pages":"108383"},"PeriodicalIF":5.3,"publicationDate":"2021-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80492032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A systematic review of long non-coding RNAs with a potential role in breast cancer","authors":"Reza Heidari , Mostafa Akbariqomi , Yazdan Asgari , Diako Ebrahimi , Hamid Alinejad-Rokny","doi":"10.1016/j.mrrev.2021.108375","DOIUrl":"10.1016/j.mrrev.2021.108375","url":null,"abstract":"<div><p><span>The human transcriptome<span> contains many non-coding RNAs (ncRNAs), which play important roles in gene regulation. Long noncoding RNAs (lncRNAs) are an important class of ncRNAs with lengths between 200 and 200,000 bases. Unlike mRNA, lncRNA lacks protein-coding features, specifically, open-reading frames, and start and </span></span>stop codons<span><span>. LncRNAs have been reported to play a role in the pathogenesis and progression of many cancers, including breast cancer (BC), acting as tumor suppressors or </span>oncogenes. In this review, we systematically mined the literature to identify 65 BC-related lncRNAs. We then perform an integrative bioinformatics analysis to identify 14 lncRNAs with a potential regulatory role in BC. The biological function of these 14 lncRNAs, their regulatory mechanisms, and roles in the initiation and progression of BC are discussed in this review. Additionally, we elaborate on the current and future applications of lncRNAs as diagnostic and/or therapeutic biomarkers in BC.</span></p></div>","PeriodicalId":49789,"journal":{"name":"Mutation Research-Reviews in Mutation Research","volume":"787 ","pages":"Article 108375"},"PeriodicalIF":5.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mrrev.2021.108375","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10620661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Permal Deo , Michael Fenech , Varinderpal S. Dhillon
{"title":"Association between glycation biomarkers, hyperglycemia, and micronucleus frequency: A meta -analysis","authors":"Permal Deo , Michael Fenech , Varinderpal S. Dhillon","doi":"10.1016/j.mrrev.2021.108369","DOIUrl":"10.1016/j.mrrev.2021.108369","url":null,"abstract":"<div><p><span>Micronucleus assay<span> has been used as a biomarker of DNA damage, chromosomal instability, cancer risk and accelerated aging. In this review, a meta-analysis was performed to assess the association between micronuclei (MNi) and diseases with increased </span></span>advanced glycation end products<span><span><span> (AGEs) and HbA1c. The review identified eight studies with 632 subjects with disease and 547 controls. The Mean Ratio (MRi) for AGE levels (MRi = 2.92, 95 %CI: 2.06–4.13, P < 0.00001) and HbA1c levels (MRi = 1.32, 95 %CI: 1.12–1.56, P = 0.001) were significantly higher in the disease group compared to healthy controls. The meta-analysis indicated that the overall estimates of MRi for MNi was 1.83 (95 %CI: 1.38–2.42, p < 0.0001) in subjects with disease compared to controls. Significant increases in MRi for MNi were also observed in the following sub-groups: subjects with disease for elevated AGEs (MRi = 1.62, 95 %CI: 1.12–2.35, P = 0.01), elevated HbA1c (MRi = 2.13, 95 %CI: 1.33–3.39, P = 0.002), lymphocytes MNi (MRi = 1.74, 95 %CI: 1.29–2.33, P = 0.0003), exfoliated buccal cells MNi (MRi = 2.86, 95 %CI: 1.19–6.87, P = 0.02), </span>type 2 diabetes mellitus<span><span> (T2DM) (MRi = 1.99, 95 %CI: 1.17–3.39, P = 0.01), chronic renal disease (MRi = 1.68, 95 %CI: 1.18–2.38, P = 0.004) and other disease groups (MRi = 2.52, 95 %CI: 1.28–4.96, P = 0.008). The results of this review suggest that MNi could be used as a biomarker of DNA damage and chromosomal instability in </span>degenerative disease where increased AGEs and HbA1c are implicated. The lack of heterogeneity for MN frequency when considered either for all studies or subgroup strengthened the MRi of the meta-analysis. However, the lack of significant association between MRi for MNi and MRi for AGEs or HbA1c indicates that the case-control studies investigated may be confounded by other variables. Thus, larger studies with long term AGE exposure is warranted to further understand the role of MN formation in the initiation and progression of diseases caused by excessive </span></span>glycation.</span></p></div>","PeriodicalId":49789,"journal":{"name":"Mutation Research-Reviews in Mutation Research","volume":"787 ","pages":"Article 108369"},"PeriodicalIF":5.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mrrev.2021.108369","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39074427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ghenwa Nasreddine, Joelle El Hajj, Michella Ghassibe-Sabbagh
{"title":"Orofacial clefts embryology, classification, epidemiology, and genetics","authors":"Ghenwa Nasreddine, Joelle El Hajj, Michella Ghassibe-Sabbagh","doi":"10.1016/j.mrrev.2021.108373","DOIUrl":"10.1016/j.mrrev.2021.108373","url":null,"abstract":"<div><p><span>Orofacial clefts (OFCs) rank as the second most common congenital birth defect in the United States after Down syndrome and are the most common head and neck congenital malformations. They are classified as cleft lip with or without </span>cleft palate<span> (CL/P) and cleft palate only (CPO). OFCs have significant psychological and socio-economic impact on patients and their families and require a multidisciplinary approach for management and counseling. A complex interaction between genetic and environmental factors contributes to the incidence and clinical presentation of OFCs. In this comprehensive review, the embryology, classification, epidemiology and etiology of clefts are thoroughly discussed and a “state-of-the-art” snapshot of the recent advances in the genetics of OFCs is presented.</span></p></div>","PeriodicalId":49789,"journal":{"name":"Mutation Research-Reviews in Mutation Research","volume":"787 ","pages":"Article 108373"},"PeriodicalIF":5.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mrrev.2021.108373","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39058071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}