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Neophytou CM, Katsonouri A, Christodoulou MI, Papageorgis P. In Vivo Investigation of the Effect of Dietary Acrylamide and Evaluation of Its Clinical Relevance in Colon Cancer. TOXICS 2023; 11:856. [PMID: 37888706 PMCID: PMC10610724 DOI: 10.3390/toxics11100856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 10/28/2023]
Abstract
Dietary exposure to acrylamide (AA) has been linked with carcinogenicity in the gastrointestinal (GI) tract. However, epidemiologic data on AA intake in relation to cancer risk are limited and contradictory, while the potential cancer-inducing molecular pathways following AA exposure remain elusive. In this study, we collected mechanistic information regarding the induction of carcinogenesis by dietary AA in the colon, using an established animal model. Male Balb/c mice received AA orally (0.1 mg/kg/day) daily for 4 weeks. RNA was extracted from colon tissue samples, followed by RNA sequencing. Comparative transcriptomic analysis between AA and mock-treated groups revealed a set of differentially expressed genes (DEGs) that were further processed using different databases through the STRING-DB portal, to reveal deregulated protein-protein interaction networks. We found that genes implicated in RNA metabolism, processing and formation of the ribosomal subunits and protein translation and metabolism are upregulated in AA-exposed colon tissue; these genes were also overexpressed in human colon adenocarcinoma samples and were negatively correlated with patient overall survival (OS), based on publicly available datasets. Further investigation of the potential role of these genes during the early stages of colon carcinogenesis may shed light into the underlying mechanisms induced by dietary AA exposure.
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Affiliation(s)
- Christiana M Neophytou
- Tumor Microenvironment, Metastasis and Experimental Therapeutics Group, Basic and Translational Cancer Research Center, Department of Life Sciences, European University Cyprus, 2404 Nicosia, Cyprus
- State General Laboratory, Ministry of Health, 2081 Nicosia, Cyprus
| | | | - Maria-Ioanna Christodoulou
- State General Laboratory, Ministry of Health, 2081 Nicosia, Cyprus
- Tumor Immunology and Biomarkers Group, Basic and Translational Cancer Research Center, Department of Life Sciences, European University Cyprus, 2404 Nicosia, Cyprus
| | - Panagiotis Papageorgis
- Tumor Microenvironment, Metastasis and Experimental Therapeutics Group, Basic and Translational Cancer Research Center, Department of Life Sciences, European University Cyprus, 2404 Nicosia, Cyprus
- State General Laboratory, Ministry of Health, 2081 Nicosia, Cyprus
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Mohamed HRH, Behira LST, Diab A. Estimation of genomic and mitochondrial DNA integrity in the renal tissue of mice administered with acrylamide and titanium dioxide nanoparticles. Sci Rep 2023; 13:13523. [PMID: 37598254 PMCID: PMC10439890 DOI: 10.1038/s41598-023-40676-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 08/16/2023] [Indexed: 08/21/2023] Open
Abstract
The Kidneys remove toxins from the blood and move waste products into the urine. However, the accumulation of toxins and fluids in the body leads to kidney failure. For example, the overuse of acrylamide and titanium dioxide nanoparticles (TiO2NPs) in many food and consumer products increases human exposure and risks; however, there are almost no studies available on the effect of TiO2NPs coadministration with acrylamide on the integrity of genomic and mitochondrial DNA. Accordingly, this study was conducted to estimate the integrity of genomic and mitochondrial DNA in the renal tissue of mice given acrylamide and TiO2NPs. To achieve this goal, mice were administrated orally TiO2NPs or/and acrylamide at the exposure dose levels (5 mg/kg b.w) and (3 mg/kg b.w), respectively, five times per week for two consecutive weeks. Concurrent oral administration of TiO2NPs with acrylamide caused remarkable elevations in the tail length, %DNA in tail and tail moment with higher fragmentation incidence of genomic DNA compared to those detected in the renal tissue of mice given TiO2NPs alone. Simultaneous coadministration of TiO2NPs with acrylamide also caused markedly high elevations in the reactive oxygen species (ROS) production and p53 expression level along with a loss of mitochondrial membrane potential and high decreases in the number of mitochondrial DNA copies and expression level of β catenin gene. Therefore, from these findings, we concluded that concurrent coadministration of acrylamide with TiO2NPs augmented TiO2NPs induced genomic DNA damage and mitochondrial dysfunction through increasing intracellular ROS generation, decreasing mitochondrial DNA Copy, loss of mitochondrial membrane potential and altered p53 and β catenin genes expression. Therefore, further studies are recommended to understand the biological and toxic effects resulting from TiO2NPs with acrylamide coadministration.
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Affiliation(s)
- Hanan R H Mohamed
- Zoology Department Faculty of Science, Cairo University, Giza, Egypt.
| | - Loren S T Behira
- Faculty of Biotechnology, October University for Modern Sciences and Arts, 6th of October City, Egypt
| | - Ayman Diab
- Faculty of Biotechnology, October University for Modern Sciences and Arts, 6th of October City, Egypt
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3
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Gündüz D, Çetin H, Dönmez AÇ. Investigation of the effects of swimming exercises in rats given acrylamide. Morphologie 2023; 107:228-237. [PMID: 36481219 DOI: 10.1016/j.morpho.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 11/14/2022] [Accepted: 11/19/2022] [Indexed: 05/14/2023]
Abstract
BACKGROUND Acrylamide is a toxic substance used in industrial and laboratory processes. Acrylamide exposure has a toxic effect on many systems. Protective mechanisms should be developed against the effects caused by acrylamide. OBJECTIVE In our study, we investigated whether exercise has a protective effect against the changes that acrylamide will cause in pancreas. METHODS 32 adult Sprague-Dawley male rats were used. Control group was given only saline. Exercise group was applied swimming exercise for 1hour daily for 4 weeks. Acrylamide group was given 50mg/kg acrylamide by gavage for 4 weeks. Acrylamide+exercise group was applied 50mg/kg acrylamide for 4 weeks and swimming exercise for 1hour daily. After the experiment, fasting blood glucose and oral glucose tolerance test measurements were performed. Then, blood and pancreas samples were taken. RESULTS Acrylamide exposure caused an increase in fasting blood glucose and oral glucose tolerance, a decrease in insulin levels and oxidative stress in acrylamide group. In exercise group, these values were similar to control group and no significant change was observed in acrylamide+exercise group. While there was an increase in the number of alpha cells in acrylamide group compared to the other groups, here was a decrease in the number of beta cells compared to control group. CONCLUSION We can say that acrylamide causes changes in the islets of Langerhans by affecting alpha and beta cell numbers. The protective effect of exercise on beta and alpha cell mass was not statistically significant in the acrylamide+exercise group. When the results were examined, the decrease in oxidative stress and the higher number of beta and alpha cells in the acrylamide+exercise group compared to the acrylamide group suggested that 4 weeks of swimming exercise may have an effect on acrylamide exposure.
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Affiliation(s)
- D Gündüz
- Malatya Turgut Ozal University, Faculty of Medicine, Department of Histology and Embryology, 44210 Malatya, Turkey.
| | - H Çetin
- Pamukkale University, Faculty of Medicine, Department of Histology and Embryology, Denizli, Turkey.
| | - A Ç Dönmez
- Pamukkale University, Faculty of Medicine, Department of Medical Biochemistry, Denizli, Turkey.
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Wu SL, Ju JQ, Ji YM, Zhang HL, Zou YJ, Sun SC. Exposure to acrylamide induces zygotic genome activation defects of mouse embryos. Food Chem Toxicol 2023; 175:113753. [PMID: 36997053 DOI: 10.1016/j.fct.2023.113753] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/21/2023] [Accepted: 03/27/2023] [Indexed: 03/30/2023]
Abstract
Acrylamide (ACR) is an important chemical raw material for wastewater treatment, paper industry and textile industry, which is widely exposed from occupational, environmental and dietary situation. ACR has neurotoxicity, genotoxicity, potential carcinogenicity and reproductive toxicity. Recent study indicates that ACR affected oocyte maturation quality. In the present study, we reported the effects of ACR exposure on zygotic genome activation (ZGA) in embryos and its related mechanism. Our results showed that ACR treatment caused 2-cell arrest in mouse embryos, indicating the failure of ZGA, which was confirmed by decreased global transcription levels and aberrant expression of ZGA-related and maternal factors. We found that histone modifications such as H3K9me3, H3K27me3 and H3K27ac levels were altered, and this might be due to the occurrence of DNA damage, showing with positive γ-H2A.X signal. Moreover, mitochondrial dysfunction and high levels of ROS were detected in ACR treated embryos, indicating that ACR induced oxidative stress, and this might further cause abnormal distribution of endoplasmic reticulum, Golgi apparatus and lysosomes. In conclusion, our results indicated that ACR exposure disrupted ZGA by inducing mitochondria-based oxidative stress, which further caused DNA damage, aberrant histone modifications and organelles in mouse embryos.
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Affiliation(s)
- Si-Le Wu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jia-Qian Ju
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yi-Ming Ji
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Hao-Lin Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yuan-Jing Zou
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shao-Chen Sun
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.
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Gabašová M, Zeleňáková L, Ciesarová Z, Benešová L, Kukurová K, Jelemenská V. The variability of acrylamide content in potato French fries depending on the oil used and deep-frying conditions. POTRAVINARSTVO 2023. [DOI: 10.5219/1857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023] Open
Abstract
The research aimed to investigate the variability of the acrylamide content in French potato fries depending on the type of oil and the length and conditions of deep-frying. Deep-frozen pre-fried potato French fries primarily intended for catering establishments were deep-fried parallel in two oils (multi-component oil and rapeseed oil) at the same conditions (175 °C/4 min and 200 °C/3 min) until the limit for total polar compounds (TPCs) content (24%) was reached. The samples were analysed immediately after removal from the package, after the first frying and when the TPCs was exceeded. High-performance liquid chromatography/electrospray ionization tandem mass spectrometry (HPLC/ESI-MS/MS) was used to determine acrylamide. Mathematical and statistical evaluation of the results was according to the indicators of descriptive characteristics, i.e., arithmetic mean, standard deviation (SD), and coefficient of variation (%). Analysis of variance (ANOVA) was used to compare groups, i.e., the assumption of agreement of variance was verified by the F test (F). All pairwise differences in means were tested using Tukey's HSD test (Honest Significantly Different) and Scheffe´s test. The critical value of α, compared to the standardized difference between the means, was established using our chosen risk of 5%. The highest acrylamide values were measured in samples deep-fried in rapeseed oil at 200 °C/3 min in sample 2b (451.13 µg/kg when deep-fried immediately) and in sample 2d (383.24 µg/kg after exceeding TPCs). The lowest values of acrylamide were found in samples deep-fried in multi-component oil at a temperature of 200 °C/3 min in sample 1d (183.35 µg/kg after exceeding TPCs) and at a temperature of 175 °C/4 min in sample 1c (240.75 µg/kg after exceeding TPCs). The decreased tendency of acrylamide in both types of oils and variants of temperature after exceeding TPCs compared to the state immediately after frying is confirmed for all samples. Potato-based products are a significant source of acrylamide production and subsequent consumption. Monitoring its presence in food is, therefore, an important legislative requirement.
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Wu L, Li H, Ye F, Wei Y, Li W, Xu Y, Xia H, Zhang J, Guo L, Zhang G, Chen F, Liu Q. As3MT-mediated SAM consumption, which inhibits the methylation of histones and LINE1, is involved in arsenic-induced male reproductive damage. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 313:120090. [PMID: 36064055 DOI: 10.1016/j.envpol.2022.120090] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/13/2022] [Accepted: 08/29/2022] [Indexed: 06/15/2023]
Abstract
Studies have demonstrated that arsenic (As) induces male reproductive injury, however, the mechanism remains unknown. The high levels of arsenic (3) methyltransferase (As3MT) promote As-induced male reproductive toxicity. For As-exposed mice, the germ cells in seminiferous tubules and sperm quality were reduced. Exposure to As caused lower S-adenosylmethionine (SAM) and 5-methylcytosine (5 mC) levels, histone and DNA hypomethylation, upregulation of long interspersed element class 1 (LINE1, or L1), defective repair of double-strand breaks (DSBs), and the arrest of meiosis, resulting in apoptosis of germ cells and lower litter size. For GC-2spd (GC-2) cells, As induced apoptosis, which was prevented by adding SAM or by reducing the expression of As3MT. The levels of LINE1, affected by SAM content, were involved in As-induced apoptosis. Furthermore, folic acid (FA) and vitamin B12 (VB12) supplements restored SAM, 5 mC, and LINE1 levels and blocked impairment of spermatogenesis and testes and lower litter size. Exposed to As, mice with As3MT knockdown showed less impairment of spermatogenesis and testes and greater litter size compared to As-exposed wild-type (WT) mice. Thus, the high As3MT levels induced by As consume SAM and block histone and LINE1 DNA methylation, elevating LINE1 expression and evoking impairment of spermatogenesis, which causes male reproductive damage. Overall, we have found a mechanism for As-induced male reproductive damage, which provides biological insights into the alleviation of reproductive injury induced by environmental factors.
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Affiliation(s)
- Lu Wu
- Center for Global Health, China International Cooperation Center for Environment and Human Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China; Suzhou Center for Disease Control and Prevention, Suzhou Institute for Advanced Study of Public Health, Gusu School, Nanjing Medical University, Suzhou, 215004, Jiangsu, People's Republic of China
| | - Han Li
- Center for Global Health, China International Cooperation Center for Environment and Human Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Fuping Ye
- Center for Global Health, China International Cooperation Center for Environment and Human Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Yongyue Wei
- Center for Global Health, China International Cooperation Center for Environment and Human Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China; State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Wenqi Li
- Center for Global Health, China International Cooperation Center for Environment and Human Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Yuan Xu
- Center for Global Health, China International Cooperation Center for Environment and Human Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China; Jiangsu Safety Assessment and Research Center for Drug, Pesticide, and Veterinary Drug, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Haibo Xia
- Center for Global Health, China International Cooperation Center for Environment and Human Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Jingshu Zhang
- Center for Global Health, China International Cooperation Center for Environment and Human Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China; Jiangsu Safety Assessment and Research Center for Drug, Pesticide, and Veterinary Drug, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Lianxian Guo
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, Guangdong, People's Republic of China
| | - Guiwei Zhang
- Shenzhen Academy of Metrology and Quality Inspection, Shenzhen, 518000, Guangdong, People's Republic of China
| | - Feng Chen
- Center for Global Health, China International Cooperation Center for Environment and Human Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China; State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Qizhan Liu
- Center for Global Health, China International Cooperation Center for Environment and Human Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China; Suzhou Center for Disease Control and Prevention, Suzhou Institute for Advanced Study of Public Health, Gusu School, Nanjing Medical University, Suzhou, 215004, Jiangsu, People's Republic of China.
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Alturki HA, Elsawy HA, Famurewa AC. Silymarin abrogates acrylamide-induced oxidative stress-mediated testicular toxicity via modulation of antioxidant mechanism, DNA damage, endocrine deficit and sperm quality in rats. Andrologia 2022; 54:e14491. [PMID: 35753048 DOI: 10.1111/and.14491] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/30/2022] [Accepted: 05/22/2022] [Indexed: 11/27/2022] Open
Abstract
Acrylamide (ACR) is a toxic chemical formed in foods processed at high temperature; it is a food-borne toxicant with increasing public health attention due to its carcinogenic, neurotoxic and reproductive toxicities. However, till date, it is unknown whether silymarin (SIL) could attenuate ACR testicular toxicity. Therefore, the present study investigated the effect of SIL on ACR testiculotoxicity in rats. Rats were randomly divided and administered respective agents in Control group, ACR group, SIL group and ACR + SIL group for consecutive 14 days. Rat exposure to ACR resulted in significant reduction in the level of serum testosterone, whereas FSH and LH levels prominently increased compared to control. Acrylamide induced marked decreases in sperm count and sperm motility followed by a considerable increase in sperm abnormality percentage in the ACR-exposed rats in comparison to control. The testicular activities of glutathione peroxidase (GPx), catalase (CAT), and superoxide dismutase (SOD) were significantly diminished, whereas malondialdehyde (MDA) level considerably increased. Additionally, ACR induced marked DNA fragmentation and histopathological lesions compared to control. Interestingly, the co-treatment of SIL with ACR attenuated the altered reproductive indices and restored antioxidant balance and DNA integrity. Overall, SIL prevents ACR-induced testicular reproductive deficits via modulation of antioxidant mechanism in rats.
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Affiliation(s)
- Hissah Ahmed Alturki
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Hany Amin Elsawy
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, Saudi Arabia.,Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt
| | - Ademola Clement Famurewa
- Department of Medical Biochemistry, Faculty of Basic Medical Sciences, College of Medical Sciences, Alex Ekwueme Federal University, Ikwo, Ebonyi State, Nigeria
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8
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Zhang H, Shan L, Aniagu S, Jiang Y, Chen T. Paternal acrylamide exposure induces transgenerational effects on sperm parameters and learning capability in mice. Food Chem Toxicol 2022; 161:112817. [PMID: 35032568 DOI: 10.1016/j.fct.2022.112817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/29/2021] [Accepted: 01/10/2022] [Indexed: 11/26/2022]
Abstract
Acrylamide (AA) has been shown to have neurological and reproductive toxicities, but little is known about transgenerational effects of AA. In this study, male C57BL/6 mice were exposed to AA (0.01, 1, 10 μg/mL) and its metabolite glycidamide (GA, 10 μg/mL) in drinking water, which were then mated with unexposed female mice to produce F1 and F2 generations. We found that both AA and GA at high concentrations decreased sperm motility in F0 mice and increased sperm malformation rates in mice from all the three generations. In addition, AA and GA increased sperm reactive oxygen species as well as decreased serum testosterone levels, and increased the escape latency time in exposed mice and their offspring. We further found that AA-induced mRNA expression changes in the hippocampus of F0 mice persist to the F2 generation. In the sperm of F0 mice, AA induced significant DNA methylation changes in genes involved in neural and reproduction; the mRNA expression levels of Dnmt3b, a DNA methyltransferase, were dramatically decreased in the testes of F0 and F1 mice. In conclusion, our study indicates that paternal AA exposure leads to DNA methylation-mediated transgenerational adverse effects on sperm parameters and leaning capability in mice.
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Affiliation(s)
- Hang Zhang
- Medical College of Soochow University, Suzhou, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China
| | - Lidong Shan
- Medical College of Soochow University, Suzhou, China
| | - Stanley Aniagu
- Toxicology, Risk Assessment, and Research Division, Texas Commission on Environmental Quality, 12015, Park 35 Cir, Austin, TX, USA
| | - Yan Jiang
- Medical College of Soochow University, Suzhou, China.
| | - Tao Chen
- Medical College of Soochow University, Suzhou, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China.
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9
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Gao JG, Jiang Y, Zheng JT, Nie LW. Pubertal exposure to acrylamide disrupts spermatogenesis by interfering with meiotic progression in male mice. Toxicol Lett 2022; 358:80-87. [DOI: 10.1016/j.toxlet.2022.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 10/19/2022]
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10
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R. R. LIMA T, P. SOUZA N, FERRAGUT CARDOSO AP, M. GOMIDE LM, G. NASCIMENTO E PONTES M, A. MIOT H, L. ARNOLD L, M. COHEN S, V. DE CAMARGO JL. Testicular alterations in cryptorchid/orchiopexic rats chronically exposed to acrylamide or di-butyl-phthalate. J Toxicol Pathol 2022; 35:159-170. [PMID: 35516837 PMCID: PMC9018398 DOI: 10.1293/tox.2021-0045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 11/25/2021] [Indexed: 11/19/2022] Open
Affiliation(s)
- Thania R. R. LIMA
- São Paulo State University (UNESP), Botucatu Medical School, Department of Pathology, Center for Evaluation of Environmental Impact on Human Health (TOXICAM), Botucatu, 18618-687, São Paulo, Brazil
| | - Nathália P. SOUZA
- São Paulo State University (UNESP), Botucatu Medical School, Department of Pathology, Center for Evaluation of Environmental Impact on Human Health (TOXICAM), Botucatu, 18618-687, São Paulo, Brazil
| | - Ana P. FERRAGUT CARDOSO
- São Paulo State University (UNESP), Botucatu Medical School, Department of Pathology, Center for Evaluation of Environmental Impact on Human Health (TOXICAM), Botucatu, 18618-687, São Paulo, Brazil
| | - Lígia Maria M. GOMIDE
- São Paulo State University (UNESP), Botucatu Medical School, Department of Pathology, Center for Evaluation of Environmental Impact on Human Health (TOXICAM), Botucatu, 18618-687, São Paulo, Brazil
| | - Merielen G. NASCIMENTO E PONTES
- São Paulo State University (UNESP), Botucatu Medical School, Department of Pathology, Center for Evaluation of Environmental Impact on Human Health (TOXICAM), Botucatu, 18618-687, São Paulo, Brazil
| | - Hélio A. MIOT
- São Paulo State University (UNESP), Botucatu Medical School, Department of Dermatology and Radiotherapy, Botucatu, 18618-687, São Paulo, Brazil
| | - Lora L. ARNOLD
- University of Nebraska Medical Center, Department of Pathology and Microbiology, Omaha, 68105, NE, USA
| | - Samuel M. COHEN
- University of Nebraska Medical Center, Department of Pathology and Microbiology, Omaha, 68105, NE, USA
| | - João Lauro V. DE CAMARGO
- São Paulo State University (UNESP), Botucatu Medical School, Department of Pathology, Center for Evaluation of Environmental Impact on Human Health (TOXICAM), Botucatu, 18618-687, São Paulo, Brazil
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11
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Trigg NA, Skerrett-Byrne DA, Xavier MJ, Zhou W, Anderson AL, Stanger SJ, Katen AL, De Iuliis GN, Dun MD, Roman SD, Eamens AL, Nixon B. Acrylamide modulates the mouse epididymal proteome to drive alterations in the sperm small non-coding RNA profile and dysregulate embryo development. Cell Rep 2021; 37:109787. [PMID: 34610313 DOI: 10.1016/j.celrep.2021.109787] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 08/10/2021] [Accepted: 09/09/2021] [Indexed: 12/12/2022] Open
Abstract
Paternal exposure to environmental stressors elicits distinct changes to the sperm sncRNA profile, modifications that have significant post-fertilization consequences. Despite this knowledge, there remains limited mechanistic understanding of how paternal exposures modify the sperm sncRNA landscape. Here, we report the acute sensitivity of the sperm sncRNA profile to the reproductive toxicant acrylamide. Furthermore, we trace the differential accumulation of acrylamide-responsive sncRNAs to coincide with sperm transit of the proximal (caput) segment of the epididymis, wherein acrylamide exposure alters the abundance of several transcription factors implicated in the expression of acrylamide-sensitive sncRNAs. We also identify extracellular vesicles secreted from the caput epithelium in relaying altered sncRNA profiles to maturing spermatozoa and dysregulated gene expression during early embryonic development following fertilization by acrylamide-exposed spermatozoa. These data provide mechanistic links to account for how environmental insults can alter the sperm epigenome and compromise the transcriptomic profile of early embryos.
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Affiliation(s)
- Natalie A Trigg
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia; Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - David A Skerrett-Byrne
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia; Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Miguel J Xavier
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia; Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Wei Zhou
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia; Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia; Department of Obstetrics and Gynaecology, The University of Melbourne, Parkville, VIC 3052, Australia; Gynaecology Research Centre, The Royal Women's Hospital, Parkville, VIC 3052, Australia
| | - Amanda L Anderson
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia; Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Simone J Stanger
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia; Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Aimee L Katen
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia; Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia; Priority Research Centre for Drug Development, School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Geoffry N De Iuliis
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia; Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Matthew D Dun
- Cancer Signalling Research Group, School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW 2308, Australia; Priority Research Centre for Cancer Research Innovation and Translation, Hunter Medical Research Institute, Lambton, NSW 2305, Australia
| | - Shaun D Roman
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia; Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia; Priority Research Centre for Drug Development, School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Andrew L Eamens
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia; Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Brett Nixon
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia; Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia.
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12
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Gajski G, Ravlić S, Godschalk R, Collins A, Dusinska M, Brunborg G. Application of the comet assay for the evaluation of DNA damage in mature sperm. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2021; 788:108398. [PMID: 34893163 DOI: 10.1016/j.mrrev.2021.108398] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 10/26/2021] [Accepted: 11/05/2021] [Indexed: 06/14/2023]
Abstract
DNA 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 comet assay, or single-cell gel electrophoresis, which is a simple, sensitive, reliable, quick and low-cost technique that is used for measuring DNA strand breaks and repair at the level of individual cells. Although the comet assay is usually performed with somatic cells from different organs, the assay has the ability to detect genotoxicity in germ cells at different stages of 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 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.
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Affiliation(s)
- Goran Gajski
- Institute for Medical Research and Occupational Health, Mutagenesis Unit, Zagreb, Croatia.
| | - Sanda Ravlić
- University of Zagreb, Centre for Research and Knowledge Transfer in Biotechnology, Zagreb, Croatia
| | - Roger Godschalk
- Maastricht University, School for Nutrition and Translational Research in Metabolism (NUTRIM), Department of Pharmacology & Toxicology, Maastricht, the Netherlands
| | - Andrew Collins
- University of Oslo, Institute of Basic Medical Sciences, Department of Nutrition, Oslo, Norway
| | - Maria Dusinska
- Norwegian Institute for Air Research (NILU), Department of Environmental Chemistry, Health Effects Laboratory, Kjeller, Norway
| | - Gunnar Brunborg
- Norwegian Institute of Public Health (NIPH), Section of Molecular Toxicology, Department of Environmental Health, Oslo, Norway
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13
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Skerrett-Byrne DA, Trigg NA, Bromfield EG, Dun MD, Bernstein IR, Anderson AL, Stanger SJ, MacDougall LA, Lord T, Aitken RJ, Roman SD, Robertson SA, Nixon B, Schjenken JE. Proteomic Dissection of the Impact of Environmental Exposures on Mouse Seminal Vesicle Function. Mol Cell Proteomics 2021; 20:100107. [PMID: 34089863 PMCID: PMC8250459 DOI: 10.1016/j.mcpro.2021.100107] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/19/2021] [Accepted: 05/28/2021] [Indexed: 12/15/2022] Open
Abstract
Seminal vesicles are an integral part of the male reproductive accessory gland system. They produce a complex array of secretions containing bioactive constituents that support gamete function and promote reproductive success, with emerging evidence suggesting these secretions are influenced by our environment. Despite their significance, the biology of seminal vesicles remains poorly defined. Here, we complete the first proteomic assessment of mouse seminal vesicles and assess the impact of the reproductive toxicant acrylamide. Mice were administered acrylamide (25 mg/kg bw/day) or control daily for five consecutive days prior to collecting seminal vesicle tissue. A total of 5013 proteins were identified in the seminal vesicle proteome with bioinformatic analyses identifying cell proliferation, protein synthesis, cellular death, and survival pathways as prominent biological processes. Secreted proteins were among the most abundant, and several proteins are linked with seminal vesicle phenotypes. Analysis of the effect of acrylamide on the seminal vesicle proteome revealed 311 differentially regulated (FC ± 1.5, p ≤ 0.05, 205 up-regulated, 106 downregulated) proteins, orthogonally validated via immunoblotting and immunohistochemistry. Pathways that initiate protein synthesis to promote cellular survival were prominent among the dysregulated pathways, and rapamycin-insensitive companion of mTOR (RICTOR, p = 6.69E-07) was a top-ranked upstream driver. Oxidative stress was implicated as contributing to protein changes, with acrylamide causing an increase in 8-OHdG in seminal vesicle epithelial cells (fivefold increase, p = 0.016) and the surrounding smooth muscle layer (twofold increase, p = 0.043). Additionally, acrylamide treatment caused a reduction in seminal vesicle secretion weight (36% reduction, p = 0.009) and total protein content (25% reduction, p = 0.017). Together these findings support the interpretation that toxicant exposure influences male accessory gland physiology and highlights the need to consider the response of all male reproductive tract tissues when interpreting the impact of environmental stressors on male reproductive function.
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Affiliation(s)
- David A Skerrett-Byrne
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Natalie A Trigg
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Elizabeth G Bromfield
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia; Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Matthew D Dun
- Cancer Signalling Research Group, Faculty of Health and Medicine, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia; Priority Research Centre for Cancer Research Innovation and Translation, Hunter Medical Research Institute, Lambton, NSW, Australia
| | - Ilana R Bernstein
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Amanda L Anderson
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Simone J Stanger
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Lily A MacDougall
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Tessa Lord
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - R John Aitken
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Shaun D Roman
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Sarah A Robertson
- The Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Brett Nixon
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - John E Schjenken
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, The University of Newcastle, Callaghan, NSW, Australia; Pregnancy and Reproduction Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia.
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14
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Calvert L, Green MP, De Iuliis GN, Dun MD, Turner BD, Clarke BO, Eamens AL, Roman SD, Nixon B. Assessment of the Emerging Threat Posed by Perfluoroalkyl and Polyfluoroalkyl Substances to Male Reproduction in Humans. Front Endocrinol (Lausanne) 2021; 12:799043. [PMID: 35356147 PMCID: PMC8959433 DOI: 10.3389/fendo.2021.799043] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/30/2021] [Indexed: 01/09/2023] Open
Abstract
Per-fluoroalkyl and polyfluoroalkyl substances (PFAS) are a diverse group of synthetic fluorinated chemicals used widely in industry and consumer products. Due to their extensive use and chemical stability, PFAS are ubiquitous environmental contaminants and as such, form an emerging risk factor for male reproductive health. The long half-lives of PFAS is of particular concern as the propensity to accumulate in biological systems prolong the time taken for excretion, taking years in many cases. Accordingly, there is mounting evidence supporting a negative association between PFAS exposure and an array of human health conditions. However, inconsistencies among epidemiological and experimental findings have hindered the ability to definitively link negative reproductive outcomes to specific PFAS exposure. This situation highlights the requirement for further investigation and the identification of reliable biological models that can inform health risks, allowing sensitive assessment of the spectrum of effects of PFAS exposure on humans. Here, we review the literature on the biological effects of PFAS exposure, with a specific focus on male reproduction, owing to its utility as a sentinel marker of general health. Indeed, male infertility has increasingly been shown to serve as an early indicator of a range of co-morbidities such as coronary, inflammatory, and metabolic diseases. It follows that adverse associations have been established between PFAS exposure and the incidence of testicular dysfunction, including pathologies such as testicular cancer and a reduction in semen quality. We also give consideration to the mechanisms that render the male reproductive tract vulnerable to PFAS mediated damage, and discuss novel remediation strategies to mitigate the negative impact of PFAS contamination and/or to ameliorate the PFAS load of exposed individuals.
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Affiliation(s)
- Leah Calvert
- Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, Newcastle, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, Newcastle NSW, Australia
| | - Mark P. Green
- School of BioSciences, Faculty of Science, University of Melbourne, VIC, Australia
| | - Geoffry N. De Iuliis
- Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, Newcastle, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, Newcastle NSW, Australia
| | - Matthew D. Dun
- Hunter Medical Research Institute, New Lambton Heights, Newcastle NSW, Australia
- Cancer Signalling Research Group, School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW, Australia
| | - Brett D. Turner
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Ultimo, Sydney, NSW, Australia
- Priority Research Centre for Geotechnical Science and Engineering, University of Newcastle, Callaghan, NSW, Australia
| | - Bradley O. Clarke
- Australian Laboratory for Emerging Contaminants, School of Chemistry, University of Melbourne, Melbourne, VIC, Australia
| | - Andrew L. Eamens
- Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, Newcastle, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, Newcastle NSW, Australia
| | - Shaun D. Roman
- Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, Newcastle, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, Newcastle NSW, Australia
- Priority Research Centre for Drug Development, University of Newcastle, Callaghan, NSW, Australia
| | - Brett Nixon
- Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, Newcastle, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, Newcastle NSW, Australia
- *Correspondence: Brett Nixon,
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15
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Aldawood N, Alrezaki A, Alanazi S, Amor N, Alwasel S, Sirotkin A, Harrath AH. Acrylamide impairs ovarian function by promoting apoptosis and affecting reproductive hormone release, steroidogenesis and autophagy-related genes: An in vivo study. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 197:110595. [PMID: 32304918 DOI: 10.1016/j.ecoenv.2020.110595] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 04/02/2020] [Accepted: 04/03/2020] [Indexed: 06/11/2023]
Abstract
Acrylamide (ACR) toxicity is quite common due to its widespread use in industry and due to the Maillard browning reaction that occurs in foods containing high concentrations of hydrocarbons subjected to high temperatures. This study aimed to elucidate the female reproductive toxicity of ACR in vivo. Fifty-day-old Wistar-Albino female rats were treated with different dosages of ACR (2.5, 10, and 50 mg/kg/day). After treatment, the animals were sacrificed, and serum and ovary samples were collected for histological examination, hormone analysis, TUNEL analysis, and RT-PCR studies. We found that ACR acts by significantly reducing ovarian weight and serum progesterone and estradiol concentrations. In addition, ACR treatment led to pyknotic, heterochromatic characteristics and nuclear fragmentation, as evidenced by hematoxylin staining. The TUNEL assay revealed that granulosa cells were affected after the oral administration of ACR, leading to the apoptosis of follicles at different stages of growth. Compared with the control condition, high doses of ACR (50 mg/kg/day) significantly induced the overexpression of INSL3, CYP17a, IGF1, ESR1, ESR2, ATG5, ATG12 and LC3 in the ovary. Moreover, LC3 mRNA levels significantly increased with increasing doses of ACR (2.5, 10 and 50 mg/kg/day), suggesting that ACR treatment induced autophagy. In conclusion, ACR induced ovarian dysfunction by affecting steroid hormone release, increasing apoptosis and mRNA levels of autophagy-related genes. The eventual correlation between apoptotic granulosa cell death and autophagy needs to be further explored.
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Affiliation(s)
- Nouf Aldawood
- King Saud University, Department of Zoology, College of Science
| | | | - Shamsa Alanazi
- King Saud University, Department of Zoology, College of Science
| | - Nabil Amor
- King Saud University, Department of Zoology, College of Science
| | - Saleh Alwasel
- King Saud University, Department of Zoology, College of Science
| | - Alexander Sirotkin
- Department of Zoology and Anthropology, Constantine the Philosopher University, 949 74, Nitra, Slovakia
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16
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Garcinol pacifies acrylamide induced cognitive impairments, neuroinflammation and neuronal apoptosis by modulating GSK signaling and activation of pCREB by regulating cathepsin B in the brain of zebrafish larvae. Food Chem Toxicol 2020; 138:111246. [PMID: 32156567 DOI: 10.1016/j.fct.2020.111246] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 02/28/2020] [Accepted: 03/03/2020] [Indexed: 02/08/2023]
Abstract
The presence of acrylamide (ACR) in food results in evident cognitive decline, accumulation of misfolded proteins, neurotoxicity, neuroinflammation, and neuronal apoptosis leading to progressive neurodegeneration. Here, we used 4 dpf zebrafish larvae exposed to ACR (1mM/3days) as our model, and neuronal proteins were analyzed. Next, we tested the effect of garcinol (GAR), a natural histone-acetylation inhibitor, whose neuroprotection mechanism of action remains to be fully elucidated. Our result revealed that ACR exposure significantly impaired cognitive behavior, downregulated oxidative repair machinery, and enhanced microglia-induced neuronal apoptosis. Moreover, ACR mediated cathepsin-B (CAT-B) translocation acted as the intracellular secretase for the processing of amyloid precursor protein (APP) and served as an additional risk factor for tau hyper-phosphorylation. Here, GAR suppresses ACR mediated CATB translocation as similar with standard inhibitor CA-074. And, this pharmacological repression helped in inhibiting amyloidogenic APP processing and downstream tau hyper-phosphorylation. GAR neuroprotection was accompanied by CREB, ATF1, and BDNF activation promoting neuronal survival. At the same time, GAR subdued cdk5 and GSK3β, the link between APP processing and tau hyper-phosphorylation. Taken together, our findings indicate that GAR rescued from ACR mediated behavioral defects, oxidative injury, neuroinflammation, undesirable APP processing, tau hyper-phosphorylation which in turn found to be CATB dependent.
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17
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Xavier MJ, Roman SD, Aitken RJ, Nixon B. Transgenerational inheritance: how impacts to the epigenetic and genetic information of parents affect offspring health. Hum Reprod Update 2019; 25:518-540. [DOI: 10.1093/humupd/dmz017] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 03/19/2019] [Accepted: 04/04/2019] [Indexed: 12/18/2022] Open
Abstract
Abstract
BACKGROUND
A defining feature of sexual reproduction is the transmission of genomic information from both parents to the offspring. There is now compelling evidence that the inheritance of such genetic information is accompanied by additional epigenetic marks, or stable heritable information that is not accounted for by variations in DNA sequence. The reversible nature of epigenetic marks coupled with multiple rounds of epigenetic reprogramming that erase the majority of existing patterns have made the investigation of this phenomenon challenging. However, continual advances in molecular methods are allowing closer examination of the dynamic alterations to histone composition and DNA methylation patterns that accompany development and, in particular, how these modifications can occur in an individual’s germline and be transmitted to the following generation. While the underlying mechanisms that permit this form of transgenerational inheritance remain unclear, it is increasingly apparent that a combination of genetic and epigenetic modifications plays major roles in determining the phenotypes of individuals and their offspring.
OBJECTIVE AND RATIONALE
Information pertaining to transgenerational inheritance was systematically reviewed focusing primarily on mammalian cells to the exclusion of inheritance in plants, due to inherent differences in the means by which information is transmitted between generations. The effects of environmental factors and biological processes on both epigenetic and genetic information were reviewed to determine their contribution to modulating inheritable phenotypes.
SEARCH METHODS
Articles indexed in PubMed were searched using keywords related to transgenerational inheritance, epigenetic modifications, paternal and maternal inheritable traits and environmental and biological factors influencing transgenerational modifications. We sought to clarify the role of epigenetic reprogramming events during the life cycle of mammals and provide a comprehensive review of how the genomic and epigenomic make-up of progenitors may determine the phenotype of its descendants.
OUTCOMES
We found strong evidence supporting the role of DNA methylation patterns, histone modifications and even non-protein-coding RNA in altering the epigenetic composition of individuals and producing stable epigenetic effects that were transmitted from parents to offspring, in both humans and rodent species. Multiple genomic domains and several histone modification sites were found to resist demethylation and endure genome-wide reprogramming events. Epigenetic modifications integrated into the genome of individuals were shown to modulate gene expression and activity at enhancer and promoter domains, while genetic mutations were shown to alter sequence availability for methylation and histone binding. Fundamentally, alterations to the nuclear composition of the germline in response to environmental factors, ageing, diet and toxicant exposure have the potential to become hereditably transmitted.
WIDER IMPLICATIONS
The environment influences the health and well-being of progeny by working through the germline to introduce spontaneous genetic mutations as well as a variety of epigenetic changes, including alterations in DNA methylation status and the post-translational modification of histones. In evolutionary terms, these changes create the phenotypic diversity that fuels the fires of natural selection. However, rather than being adaptive, such variation may also generate a plethora of pathological disease states ranging from dominant genetic disorders to neurological conditions, including spontaneous schizophrenia and autism.
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Affiliation(s)
- Miguel João Xavier
- Reproductive Science Group, Faculty of Science, The University of Newcastle, Callaghan, NSW 2308, Australia
- Priority Research Centre for Reproductive Science, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Shaun D Roman
- Reproductive Science Group, Faculty of Science, The University of Newcastle, Callaghan, NSW 2308, Australia
- Priority Research Centre for Reproductive Science, The University of Newcastle, Callaghan, NSW 2308, Australia
- Priority Research Centre for Chemical Biology and Clinical Pharmacology, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - R John Aitken
- Reproductive Science Group, Faculty of Science, The University of Newcastle, Callaghan, NSW 2308, Australia
- Priority Research Centre for Reproductive Science, The University of Newcastle, Callaghan, NSW 2308, Australia
- Faculty of Health and Medicine, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Brett Nixon
- Reproductive Science Group, Faculty of Science, The University of Newcastle, Callaghan, NSW 2308, Australia
- Priority Research Centre for Reproductive Science, The University of Newcastle, Callaghan, NSW 2308, Australia
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Huang YF, Huang CCJ, Lu CA, Chen ML, Liou SH, Chiang SY, Wu KY. Feasibility of using urinary N7-(2-carbamoyl-2-hydroxyethyl) Guanine as a biomarker for acrylamide exposed workers. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2018; 28:589-598. [PMID: 29463903 DOI: 10.1038/s41370-018-0018-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 08/25/2017] [Accepted: 09/24/2017] [Indexed: 06/08/2023]
Abstract
Acrylamide (AA), a probable human carcinogen, is a widely-used industrial chemical but is also present in tobacco smoke and carbohydrate-rich foods processed at high temperatures. AA is metabolized to glycidamide (GA) to cause the formation of DNA adducts. N7-(2-carbamoyl-2-hydroxyethyl) guanine (N7-GAG), the most abundant DNA adduct induced by GA, was recently detected in urine of smokers and non-smokers. In this study, we assessed the variability of AA exposure and biomarkers of AA exposure in urine samples repeatedly collected from AA-exposed workers and explored the half-life of N7-GAG. A total of 8 AA-exposed workers and 36 non-exposed workers were recruited. Pre-shift and post-shift urine samples were collected from the exposed group in parallel with personal sampling for eight consecutive days and from the control group on day 1 of the study. Urinary N7-GAG and the mercapturic acids of AA and GA, namely N-acetyl-S-(2-carbamoylethyl)-L-cysteine (AAMA) and N-(R,S)-acetyl-S-(1-carbamoyl-2-hydroxyethyl)-L-cysteine (GAMA) were analyzed using on-line solid phase extraction-liquid chromatography-electrospray ionization/tandem mass spectrometry methods. We found that N7-GAG levels in urine were significantly higher in exposed workers than in controls and that N7-GAG level correlated positively with AAMA and GAMA levels. Results from this study showed that AAMA and GAMA possibly remain the more preferred biomarkers of AA exposure and that N7-GAG levels could be elevated by occupational exposures to AA and serve as a biomarker of AA-induced genotoxicity for epidemiological studies.
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Affiliation(s)
- Yu-Fang Huang
- Department of Safety, Health and Environmental Engineering, National United University, Miaoli, Taiwan
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Institute of Environmental and Occupational Health Sciences, National Yang Ming University, Taipei, Taiwan
| | - Chih-Chun Jean Huang
- Department of Food Science, National Pingtung University of Science and Technology, Neipu, Pingtung, Taiwan
| | - Chensheng Alex Lu
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Mei-Lien Chen
- Institute of Environmental and Occupational Health Sciences, National Yang Ming University, Taipei, Taiwan
| | - Saou-Hsing Liou
- Division of Environmental Health and Occupational Medicine, National Health Research Institutes, Miaoli, Taiwan
| | - Su-Yin Chiang
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Kuen-Yuh Wu
- Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University, Taipei City, Taiwan.
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Dortaj H, Anvari M, Yadegari M, Hosseini Sharifabad M, Abbasi Sarcheshmeh A. Stereological Survey of the Effect of Vitamin C on Neonatal Rat Kidney Tissue Treated With Acrylamide. ACTA ACUST UNITED AC 2017. [DOI: 10.30699/mmlj17.1.2.42] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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20
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Katen AL, Sipilä P, Mitchell LA, Stanger SJ, Nixon B, Roman SD. Epididymal CYP2E1 plays a critical role in acrylamide-induced DNA damage in spermatozoa and paternally mediated embryonic resorptions†. Biol Reprod 2017; 96:921-935. [DOI: 10.1093/biolre/iox021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 03/28/2017] [Indexed: 01/21/2023] Open
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21
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He Y, Tan D, Mi Y, Bai B, Jiang D, Zhou X, Ji S. Effect of epigallocatechin-3-gallate on acrylamide-induced oxidative stress and apoptosis in PC12 cells. Hum Exp Toxicol 2017; 36:1087-1099. [PMID: 27920337 DOI: 10.1177/0960327116681648] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Acrylamide (ACR) is a chemical intermediate utilized in industry. ACR is also formed during heating of foods containing carbohydrates and amino acids. Therefore, humans are widely exposed to ACR, and ACR neurotoxicity in humans is a significant public health issue attracting wide attention. In this study, we investigated the potential neuroprotective effects of epigallocatechin-3-gallate (EGCG), the most abundant polyphenolic compound in green tea, in PC12 cells treated with ACR. ACR-treated PC12 cells pretreated with various concentrations of EGCG (2.5, 5 and 10 μM) for 24 h had increased viability and acetylcholinesterase activity and reduced apoptosis and necrosis compared to cells exposed to ACR alone. EGCG reduced the expression of bax mRNA, decreased cytochrome c release, reduced intracellular calcium levels, inactivated caspase 3 and increased mitochondrial membrane potential, suggesting that EGCG prevents ACR-induced apoptosis through a mitochondrial-mediated pathway. In addition, EGCG inhibited the formation of reactive oxygen species and lipid peroxidation while enhancing superoxide dismutase activity and glutathione levels, thereby reducing oxidative stress. Our results indicate that pretreatment of PC12 cells with EGCG attenuates ACR-induced apoptosis by reducing oxidative stress. Therefore, drinking green tea may reduce nerve injury induced by ACR.
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Affiliation(s)
- Y He
- College of Food, Shenyang Agricultural University, Shenhe District, Shenyang, People's Republic of China
| | - D Tan
- College of Food, Shenyang Agricultural University, Shenhe District, Shenyang, People's Republic of China
| | - Y Mi
- College of Food, Shenyang Agricultural University, Shenhe District, Shenyang, People's Republic of China
| | - B Bai
- College of Food, Shenyang Agricultural University, Shenhe District, Shenyang, People's Republic of China
| | - D Jiang
- College of Food, Shenyang Agricultural University, Shenhe District, Shenyang, People's Republic of China
| | - X Zhou
- College of Food, Shenyang Agricultural University, Shenhe District, Shenyang, People's Republic of China
| | - S Ji
- College of Food, Shenyang Agricultural University, Shenhe District, Shenyang, People's Republic of China
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22
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Aras D, Cakar Z, Ozkavukcu S, Can A, Cinar O. In Vivo acrylamide exposure may cause severe toxicity to mouse oocytes through its metabolite glycidamide. PLoS One 2017; 12:e0172026. [PMID: 28182799 PMCID: PMC5300229 DOI: 10.1371/journal.pone.0172026] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 01/30/2017] [Indexed: 01/07/2023] Open
Abstract
High acrylamide (ACR) content in heat-processed carbohydrate-rich foods, as well as roasted products such as coffee, almonds etc., has been found to be as a risk factor for carcinogenicity and genotoxicity by The World Health Organization. Glycidamide (GLY), the epoxide metabolite of ACR, is processed by the cytochrome P-450 enzyme system and has also been found to be a genotoxic agent. The aim of this study was to determine whether ACR and/or GLY have any detrimental effect on the meiotic cell division of oocytes. For this purpose, germinal vesicle-stage mouse oocytes were treated with 0, 100, 500, or 1000 μM ACR or 0, 25, or 250 μM GLY in vitro. In vivo experiments were performed after an intraperitoneal injection of 25 mg/kg/day ACR of female BALB/c mice for 7 days. The majority of in vitro ACR-treated oocytes reached the metaphase-II stage following 18 hours of incubation, which was not significantly different from the control group. Maturation of the oocytes derived from in vivo ACR-treated mice was impaired significantly. Oocytes, reaching the M-II stage in the in vivo ACR-treated group, were characterized by a decrease in meiotic spindle mass and an increase in chromosomal disruption. In vitro GLY treatment resulted in the degeneration of all oocytes, indicating that ACR toxicity on female germ cells may occur through its metabolite, GLY. Thus, ACR exposure must be considered, together with its metabolite GLY, when female fertility is concerned.
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Affiliation(s)
- Duru Aras
- Laboratories for Stem Cells and Reproductive Biology, Department of Histology and Embryology, Ankara University School of Medicine, Sihhiye, Ankara, Turkey
| | - Zeynep Cakar
- Laboratories for Stem Cells and Reproductive Biology, Department of Histology and Embryology, Ankara University School of Medicine, Sihhiye, Ankara, Turkey
| | - Sinan Ozkavukcu
- Centre for Assisted Reproduction, Department of Obstetrics and Gynecology, Ankara University School of Medicine, Cebeci, Ankara, Turkey
| | - Alp Can
- Laboratories for Stem Cells and Reproductive Biology, Department of Histology and Embryology, Ankara University School of Medicine, Sihhiye, Ankara, Turkey
| | - Ozgur Cinar
- Laboratories for Stem Cells and Reproductive Biology, Department of Histology and Embryology, Ankara University School of Medicine, Sihhiye, Ankara, Turkey
- * E-mail:
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23
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He Y, Tan D, Mi Y, Zhou Q, Ji S. Epigallocatechin-3-gallate attenuates cerebral cortex damage and promotes brain regeneration in acrylamide-treated rats. Food Funct 2017; 8:2275-2282. [DOI: 10.1039/c6fo01823h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
ACR increased the rate of nestin-positive cells implying that ACR caused cell damage, and EGCG decreased the rates of nestin-positive cells against ACR suggesting that EGCG may promote cell regeneration.
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Affiliation(s)
- Yin He
- College of Food
- Shenyang Agricultural University
- Shenyang City 110866
- People's Republic of China
| | - Dehong Tan
- College of Food
- Shenyang Agricultural University
- Shenyang City 110866
- People's Republic of China
| | - Yan Mi
- College of Food
- Shenyang Agricultural University
- Shenyang City 110866
- People's Republic of China
| | - Qian Zhou
- College of Food
- Shenyang Agricultural University
- Shenyang City 110866
- People's Republic of China
| | - Shujuan Ji
- College of Food
- Shenyang Agricultural University
- Shenyang City 110866
- People's Republic of China
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24
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Semla M, Goc Z, Martiniaková M, Omelka R, Formicki G. Acrylamide: a common food toxin related to physiological functions and health. Physiol Res 2016; 66:205-217. [PMID: 27982682 DOI: 10.33549/physiolres.933381] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Acrylamide (AA) is a highly reactive organic compound capable of polymerization to form polyacrylamide, which is commonly used throughout a variety of industries. Given its toxic effect on humans and animals, the last 20 years have seen an increased interest in research devoted to the AA. One of the main sources of AA is food. AA appears in heated food following the reaction between amino acids and reduced sugars. Large concentrations of AA can be found in popular staples such as coffee, bread or potato products. An average daily consumption of AA is between 0.3-2.0 microg/kg b.w. Inhalation of acrylamide is related with occupational exposure. AA delivered with food is metabolized in the liver by cytochrome P450. AA biotransformation and elimination result in formation of toxic glycidamide (GA). Both, AA and GA can be involved in the coupling reaction with the reduced glutathione (GSH) forming glutathione conjugates which are excreted with urine. Biotransformation of AA leads to the disturbance in the redox balance. Numerous research proved that AA and GA have significant influence on physiological functions including signal propagation in peripheral nerves, enzymatic and hormonal regulation, functions of muscles, reproduction etc. In addition AA and GA show neurotoxic, genotoxic and cancerogenic properties. In 1994, International Agency for Research on Cancer (IARC) classified acrylamide as a potentially carcinogenic substance to human.
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Affiliation(s)
- M Semla
- Institute of Biology, Pedagogical University of Cracow, Kraków, Poland.
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25
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Gutzkow KB, Duale N, Danielsen T, von Stedingk H, Shahzadi S, Instanes C, Olsen AK, Steffensen IL, Hofer T, Törnqvist M, Brunborg G, Lindeman B. Enhanced susceptibility of obese mice to glycidamide-induced sperm chromatin damage without increased oxidative stress. Andrology 2016; 4:1102-1114. [DOI: 10.1111/andr.12233] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 04/26/2016] [Accepted: 05/11/2016] [Indexed: 11/29/2022]
Affiliation(s)
- K. B. Gutzkow
- Division of Environmental Medicine; Department of Chemicals and Radiation; Norwegian Institute of Public Health; Oslo Norway
| | - N. Duale
- Division of Environmental Medicine; Department of Chemicals and Radiation; Norwegian Institute of Public Health; Oslo Norway
| | - T. Danielsen
- Division of Environmental Medicine; Department of Chemicals and Radiation; Norwegian Institute of Public Health; Oslo Norway
| | - H. von Stedingk
- Department of Environmental Science and Analytical Chemistry; Stockholm University; Stockholm Sweden
| | - S. Shahzadi
- Division of Environmental Medicine; Department of Chemicals and Radiation; Norwegian Institute of Public Health; Oslo Norway
| | - C. Instanes
- Division of Environmental Medicine; Department of Chemicals and Radiation; Norwegian Institute of Public Health; Oslo Norway
| | - A.-K. Olsen
- Division of Environmental Medicine; Department of Chemicals and Radiation; Norwegian Institute of Public Health; Oslo Norway
| | - I.-L. Steffensen
- Division of Environmental Medicine; Department of Food, Water and Cosmetics; Norwegian Institute of Public Health; Oslo Norway
| | - T. Hofer
- Division of Environmental Medicine; Department of Chemicals and Radiation; Norwegian Institute of Public Health; Oslo Norway
| | - M. Törnqvist
- Department of Environmental Science and Analytical Chemistry; Stockholm University; Stockholm Sweden
| | - G. Brunborg
- Division of Environmental Medicine; Department of Chemicals and Radiation; Norwegian Institute of Public Health; Oslo Norway
| | - B. Lindeman
- Division of Environmental Medicine; Department of Chemicals and Radiation; Norwegian Institute of Public Health; Oslo Norway
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26
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Chronic acrylamide exposure in male mice induces DNA damage to spermatozoa; Potential for amelioration by resveratrol. Reprod Toxicol 2016; 63:1-12. [DOI: 10.1016/j.reprotox.2016.05.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 05/03/2016] [Accepted: 05/07/2016] [Indexed: 01/21/2023]
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27
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The Epigenetic Consequences of Paternal Exposure to Environmental Contaminants and Reproductive Toxicants. Curr Environ Health Rep 2016; 3:202-13. [DOI: 10.1007/s40572-016-0101-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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28
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Friedman M. Acrylamide: inhibition of formation in processed food and mitigation of toxicity in cells, animals, and humans. Food Funct 2016; 6:1752-72. [PMID: 25989363 DOI: 10.1039/c5fo00320b] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Potentially toxic acrylamide is largely derived from the heat-inducing reactions between the amino group of the amino acid asparagine and carbonyl groups of glucose and fructose in plant-derived foods including cereals, coffees, almonds, olives, potatoes, and sweet potatoes. This review surveys and consolidates the following dietary aspects of acrylamide: distribution in food, exposure and consumption by diverse populations, reduction of the content in different food categories, and mitigation of adverse in vivo effects. Methods to reduce acrylamide levels include selecting commercial food with a low acrylamide content, selecting cereal and potato varieties with low levels of asparagine and reducing sugars, selecting processing conditions that minimize acrylamide formation, adding food-compatible compounds and plant extracts to food formulations before processing that inhibit acrylamide formation during processing of cereal products, coffees, teas, olives, almonds, and potato products, and reducing multiorgan toxicity (antifertility, carcinogenicity, neurotoxicity, teratogenicity). The herein described observations and recommendations are of scientific interest for food chemistry, pharmacology, and toxicology, but also have the potential to benefit nutrition, food safety, and human health.
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Affiliation(s)
- Mendel Friedman
- Western Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, 800 Buchanan St., Albany, CA 94710, USA.
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29
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Katen AL, Roman SD. The genetic consequences of paternal acrylamide exposure and potential for amelioration. Mutat Res 2015; 777:91-100. [PMID: 25989052 DOI: 10.1016/j.mrfmmm.2015.04.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Revised: 03/31/2015] [Accepted: 04/08/2015] [Indexed: 06/04/2023]
Abstract
Acrylamide is a toxin that humans are readily exposed to due to its formation in many carbohydrate rich foods cooked at high temperatures. Acrylamide is carcinogenic, neurotoxic and causes reproductive toxicity when high levels of exposure are reached in mice and rats. Acrylamide induced effects on fertility occur predominantly in males. Acrylamide exerts its reproductive toxicity via its metabolite glycidamide, a product which is only formed via the cytochrome P450 detoxifying enzyme CYP2E1. Glycidamide is highly reactive and forms adducts with DNA. Chronic low dose acrylamide exposure in mice relevant to human exposure levels results in significantly increased levels of DNA damage in terms of glycidamide adducts in spermatocytes, the specific germ cell stage where Cyp2e1 is expressed. Since cells in the later stages of spermatogenesis are unable to undergo DNA repair, and this level of acrylamide exposure causes no reduction in fertility, there is potential for this damage to persist until sperm maturation and fertilisation. Cyp2e1 is also present within epididymal cells, allowing for transiting spermatozoa to be exposed to glycidamide. This could have consequences for future generations in terms of predisposition to diseases such as cancer, with growing indications that paternal DNA damage can be propagated across multiple generations. Since glycidamide is the major contributor to DNA damage, a mechanism for preventing these effects is inhibiting the function of Cyp2e1. Resveratrol is an example of an inhibitor of Cyp2e1 which has shown success in reducing damage caused by acrylamide treatment in mice.
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Affiliation(s)
- Aimee L Katen
- Reproductive Science Group, School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales 2308, Australia
| | - Shaun D Roman
- Reproductive Science Group, School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales 2308, Australia; The Australian Research Council Centre of Excellence in Biotechnology and Development, Callaghan, New South Wales 2308, Australia; The Priority Research Centres for Reproductive Sciences and Chemical Biology, University of Newcastle, Callaghan, New South Wales 2308, Australia.
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30
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31
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Huang CCJ, Wu CF, Shih WC, Luo YS, Chen MF, Li CM, Liou SH, Chung WS, Chiang SY, Wu KY. Potential Association of Urinary N7-(2-Carbamoyl-2-hydroxyethyl) Guanine with Dietary Acrylamide Intake of Smokers and Nonsmokers. Chem Res Toxicol 2014; 28:43-50. [DOI: 10.1021/tx500265p] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Chih-Chun Jean Huang
- Department
of Food Science, National Pingtung University of Science and Technology, Neipu, Pingtung 91201, Taiwan
- Division
of Environmental Health and Occupational Medicine, National Health Research Institutes, Zhunan Town, Miaoli County 35053, Taiwan
| | - Chia-Fang Wu
- Division
of Environmental Health and Occupational Medicine, National Health Research Institutes, Zhunan Town, Miaoli County 35053, Taiwan
- Graduate
Institute of Occupational Safety and Health and Department of Occupational
Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wei-Chung Shih
- Department of Public Health & Institute of Occupational Medicine and Industrial Hygiene, College of Public Health, National Taiwan University, Taipei 10055, Taiwan
| | - Yu-Syuan Luo
- Department of Public Health & Institute of Occupational Medicine and Industrial Hygiene, College of Public Health, National Taiwan University, Taipei 10055, Taiwan
| | - Ming-Feng Chen
- Division
of Environmental Health and Occupational Medicine, National Health Research Institutes, Zhunan Town, Miaoli County 35053, Taiwan
| | - Chien-Ming Li
- Division
of Environmental Health and Occupational Medicine, National Health Research Institutes, Zhunan Town, Miaoli County 35053, Taiwan
| | - Saou-Hsing Liou
- Division
of Environmental Health and Occupational Medicine, National Health Research Institutes, Zhunan Town, Miaoli County 35053, Taiwan
| | - Wen-Sheng Chung
- Department
of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Su-Yin Chiang
- School of
Chinese Medicine, China Medical University, Taichung 404, Taiwan
| | - Kuen-Yuh Wu
- Department of Public Health & Institute of Occupational Medicine and Industrial Hygiene, College of Public Health, National Taiwan University, Taipei 10055, Taiwan
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32
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Shim I, Seo GB, Oh E, Lee M, Kwon JT, Sul D, Lee BW, Yoon BI, Kim P, Choi K, Kim HM. Inhalation exposure to chloramine T induces DNA damage and inflammation in lung of Sprague-Dawley rats. J Toxicol Sci 2014; 38:937-46. [PMID: 24213014 DOI: 10.2131/jts.38.937] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Chloramine T has been widely used as a disinfectant in many areas such as kitchens, laboratories and hospitals. It has been also used as a biocide in air fresheners and deodorants which are consumer products; however, little is known about its toxic effects by inhalation route. This study was performed to identify the subacute inhalation toxicity of chloramine T under whole-body inhalation exposure conditions. Male and female groups of rats were exposed to chloramine T at concentrations of 0.2, 0.9 and 4.0 mg/m³ for 6 hr/day, 5 days/week during 4 weeks. After 28-day repeated inhalation of chloramine T, there were dose-dependently significant DNA damage in the rat tissues evaluated and inflammation was histopathologically noted around the terminal airways of the lung in both genders. As a result of the expression of three types of antioxidant enzymes (SOD-2, GPx-1, PRX-1) in rat's lung after exposure, there was no significant change of all antioxidant enzymes in the male and female rats. The results showed that no observed adverse effect level (NOAEL) was 0.2 mg/m³ in male rats and 0.9 mg/m³ in female rats under the present experimental condition.
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Affiliation(s)
- Ilseob Shim
- Risk Assessment Division, NIER, Environmental Research Complex, Korea
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33
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Williams JR, Rayburn JR, Cline GR, Sauterer R, Friedman M. Potential protective effect of L-cysteine against the toxicity of acrylamide and furan in exposed Xenopus laevis embryos: an interaction study. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:7927-7938. [PMID: 25055136 DOI: 10.1021/jf5013743] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The embryo toxicities of two food-processing-induced toxic compounds, acrylamide and furan, with and without added L-cysteine were examined individually and in mixtures using the frog embryo teratogenesis assay-Xenopus (FETAX). The following measures of developmental toxicity were used: (a) 96 h LC50, the median concentration causing 50% embryo lethality; (b) 96 h EC50, the median concentration causing 50% malformations of the surviving embryos; and (c) teratogenic index (96 h LC50/96 h EC50), an estimate of teratogenic risk. Calculations of toxic units (TU) were used to assess possible antagonism, synergism, or response addition of several mixtures. The evaluated compounds demonstrated counterintuitive effects. Furan had lower than expected toxicity in Xenopus embryos and, unlike acrylamide, does not seem to be teratogenic. However, the short duration of the tests may not show the full effects of furan if it is truly primarily genotoxic and carcinogenic. L-Cysteine showed unexpected properties in the delay of hatching of the embryos. The results from the interaction studies between combination of two or three components (acrylamide plus L-cysteine; furan plus L-cysteine; acrylamide plus furan; acrylamide plus furan and L-cysteine) show that furan and acrylamide seem to have less than response addition at 1:1 toxic unit ratio in lethality. Acrylamide and L-cysteine show severe antagonism even at low 19 acrylamide/1 L-cysteine TU ratios. Data from the mixture of acrylamide, furan, and L-cysteine show a slight antagonism, less than would have been expected from binary mixture exposures. Bioalkylation mechanisms and their prevention are discussed. There is a need to study the toxicological properties of mixtures of acrylamide and furan concurrently formed in heat-processed food.
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Affiliation(s)
- John Russell Williams
- Biology Department, Jacksonville State University , Jacksonville, Alabama 36265, United States
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Nixon BJ, Katen AL, Stanger SJ, Schjenken JE, Nixon B, Roman SD. Mouse spermatocytes express CYP2E1 and respond to acrylamide exposure. PLoS One 2014; 9:e94904. [PMID: 24788432 PMCID: PMC4008485 DOI: 10.1371/journal.pone.0094904] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Accepted: 03/20/2014] [Indexed: 01/08/2023] Open
Abstract
Metabolism of xenobiotics by cytochrome P450s (encoded by the CYP genes) often leads to bio-activation, producing reactive metabolites that interfere with cellular processes and cause DNA damage. In the testes, DNA damage induced by xenobiotics has been associated with impaired spermatogenesis and adverse effects on reproductive health. We previously reported that chronic exposure to the reproductive toxicant, acrylamide, produced high levels of DNA damage in spermatocytes of Swiss mice. CYP2E1 metabolises acrylamide to glycidamide, which, unlike acrylamide, readily forms adducts with DNA. Thus, to investigate the mechanisms of acrylamide toxicity in mouse male germ cells, we examined the expression of the CYP, CYP2E1, which metabolises acrylamide. Using Q-PCR and immunohistochemistry, we establish that CYP2E1 is expressed in germ cells, in particular in spermatocytes. Additionally, CYP2E1 gene expression was upregulated in these cells following in vitro acrylamide exposure (1 µM, 18 h). Spermatocytes were isolated and treated with 1 µM acrylamide or 0.5 µM glycidamide for 18 hours and the presence of DNA-adducts was investigated using the comet assay, modified to detect DNA-adducts. Both compounds produced significant levels of DNA damage in spermatocytes, with a greater response observed following glycidamide exposure. A modified comet assay indicated that direct adduction of DNA by glycidamide was a major source of DNA damage. Oxidative stress played a small role in eliciting this damage, as a relatively modest effect was found in a comet assay modified to detect oxidative adducts following glycidamide exposure, and glutathione levels remained unchanged following treatment with either compound. Our results indicate that the male germ line has the capacity to respond to xenobiotic exposure by inducing detoxifying enzymes, and the DNA damage elicited by acrylamide in male germ cells is likely due to the formation of glycidamide adducts.
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Affiliation(s)
- Belinda J. Nixon
- Reproductive Science Group, School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales, Australia
| | - Aimee L. Katen
- Reproductive Science Group, School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales, Australia
| | - Simone J. Stanger
- Reproductive Science Group, School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales, Australia
| | - John E. Schjenken
- Reproductive Science Group, School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales, Australia
| | - Brett Nixon
- Reproductive Science Group, School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales, Australia
- Australian Research Council Centre of Excellence in Biotechnology and Development, School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales, Australia
| | - Shaun D. Roman
- Reproductive Science Group, School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales, Australia
- Australian Research Council Centre of Excellence in Biotechnology and Development, School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales, Australia
- * E-mail:
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35
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Kommuguri UN, Satyaprasad Pallem PV, Bodiga S, Bodiga VL. Effect of dietary antioxidants on the cytostatic effect of acrylamide during copper-deficiency in Saccharomyces cerevisiae. Food Funct 2014; 5:705-15. [DOI: 10.1039/c3fo60483g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Yeast grown on a copper deficient medium was used to study acrylamide toxicity, obviating the need for genetic manipulation and accompanying compensatory effects.
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Affiliation(s)
| | | | - Sreedhar Bodiga
- Department of Biochemistry
- Kakatiya University
- Warangal, India
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36
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Nehls I, Hanebeck O, Becker R, Emmerling F. N-(β-Carb-oxy-eth-yl)-α-isoleucine. Acta Crystallogr Sect E Struct Rep Online 2013; 69:o172-3. [PMID: 23424458 PMCID: PMC3569235 DOI: 10.1107/s160053681205146x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 12/20/2012] [Indexed: 12/03/2022]
Abstract
The title compound, {2-[(2-carbamoylethyl)amino]-3-methylpentanoic acid}, C9H18N2O3, is of interest with respect to its biological activity. It was formed during an addition reaction between acrylamide and the amino acid isoleucine. The crystal structure is a three-dimensional network built up by intermolecular N—H⋯O and O—H⋯N hydrogen bonds.
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Affiliation(s)
- Irene Nehls
- Federal Institute for Materials Research and Testing (BAM), Richard-Willstaetter-Strasse 11, D-12489 Berlin, Germany
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