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Neghab M, Kargar-Shouroki F, Mozdarani H, Yousefinejad S, Alipour H, Fardid R. Association between genotoxic properties of inhalation anesthetics and oxidative stress biomarkers. Toxicol Ind Health 2021; 36:454-466. [PMID: 32787740 DOI: 10.1177/0748233720935696] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Exposure to inhalation anesthetics (IAs) has been associated with DNA damage as reflected in the increased frequency of micronuclei (MN) and chromosomal aberrations (CAs). The present study was undertaken to ascertain whether there was any correlation between increased MN and CA and the extent of oxidative stress as well as the antioxidant status of a group of operating room personnel exposed to a mixture of IAs, including nitrous oxide, isoflurane, and sevoflurane. In this cross-sectional study, 60 operating room personnel (exposed group) in whom the frequencies of MN and CA had already been shown to be significantly higher than those of a referent group, as well as 60 unexposed nurses, were studied. Venous blood samples were taken from all participants, and malondialdehyde (MDA) levels as an index of oxidative stress (OS) and the activity of superoxide dismutase (SOD) and levels of total antioxidant capacity (TAC) as indices of antioxidant status were measured. The level of TAC (1.76 ± 0.59 mM vs. 2.13 ± 0.64 mM, p = 0.001) and the activity of SOD (11.22 ± 5.11 U/ml vs. 13.36 ± 4.12 U/ml, p = 0.01) were significantly lower, while the mean value of MDA was significantly higher (2.46 ± 0.66 µM vs. 2.19 ± 0.68 µM, p = 0.03) in the exposed group than in the nonexposed group. After adjusting for potential confounders, there were statistically significant associations between exposure to IAs, gender, SOD, and TAC with MN frequency and between exposure to IAs and SOD with numbers of CA. The findings of the present study indicated that exposure to IAs was associated with OS, and this, in turn, may be causally linked with DNA damage.
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Affiliation(s)
- Masoud Neghab
- Research Center for Health Sciences, Institute of Health, 48435Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fatemeh Kargar-Shouroki
- Occupational Health Research Center, School of Public Health, 125423Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hossein Mozdarani
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Saeed Yousefinejad
- Department of Occupational Health Engineering, School of Health, 48435Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hamzeh Alipour
- Research Center for Health Sciences, Institute of Health, 48435Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Fardid
- Department of Radiology, School of Paramedical Sciences, 48435Shiraz University of Medical Sciences, Shiraz, Iran
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Massey IY, Al osman M, Yang F. An overview on cyanobacterial blooms and toxins production: their occurrence and influencing factors. TOXIN REV 2020. [DOI: 10.1080/15569543.2020.1843060] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Isaac Yaw Massey
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, China
| | - Muwaffak Al osman
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, China
| | - Fei Yang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, China
- Department of Occupational and Environmental Health, School of Public Health, University of South China, Hengyang, China
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Zhou P, Xiong T, Yao L, Yuan J. MicroRNA-665 promotes the proliferation of ovarian cancer cells by targeting SRCIN1. Exp Ther Med 2019; 19:1112-1120. [PMID: 32010277 PMCID: PMC6966142 DOI: 10.3892/etm.2019.8293] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 11/08/2019] [Indexed: 02/07/2023] Open
Abstract
Recent studies have discovered several microRNAs (miRNAs/miRs) as biomarkers for the prediction of ovarian cancer by detecting miRNA profiles in serum samples from healthy volunteers and patients with ovarian cancer. However, whether and how these miRNAs are involved in tumorigenesis is not known. In the present study, the expression of miR-665, a recently discovered biomarker for ovarian cancer, was upregulated in tumor tissues from patients with ovarian cancer compared with normal tissues. Inhibition of miR-665 inhibited cell proliferation ability and inactivated MAPK/ERK signaling of ovarian cancer cells. Using bioinformatics analysis, Src kinase signaling inhibitor 1 (SRCIN1) was predicted as a potential target gene of miR-665. Reverse transcription-quantitative PCR and western blotting showed that SRCIN1 expression was repressed by miR-665 in ovarian cancer cells. In addition, a dual luciferase activity assay showed that SRCIN1 was a target gene of miR-665. Silencing of SRCIN1 could reverse the cell growth arrest, which was induced by the miR-665 inhibitor. Moreover, miR-665 levels were negatively correlated with SRCIN1 mRNA levels in tumor tissues from patients with ovarian cancer. In conclusion, the present data suggested that miR-665 functioned as an oncogene in ovarian cancer by directly repressing the expression of SRCIN1.
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Affiliation(s)
- Ping Zhou
- Department of Gynecology and Obstetrics, Cancer Hospital Affiliated to Xinjiang Medical University, Ürümqi, Xinjiang 830011, P.R. China
| | - Tingchuan Xiong
- Department of Gynecology and Obstetrics, Cancer Hospital Affiliated to Xinjiang Medical University, Ürümqi, Xinjiang 830011, P.R. China
| | - Lili Yao
- Department of Gynecology and Obstetrics, Cancer Hospital Affiliated to Xinjiang Medical University, Ürümqi, Xinjiang 830011, P.R. China
| | - Jianlin Yuan
- Department of Gynecology and Obstetrics, Cancer Hospital Affiliated to Xinjiang Medical University, Ürümqi, Xinjiang 830011, P.R. China
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Lu X, Tian J, Wen H, Jiang M, Liu W, Wu F, Yu L, Zhong S. Microcystin-LR-regulated transcriptome dynamics in ZFL cells. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 212:222-232. [PMID: 31136897 DOI: 10.1016/j.aquatox.2019.04.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 04/26/2019] [Accepted: 04/28/2019] [Indexed: 06/09/2023]
Abstract
Microcystin-LR (MC-LR) is a highly toxic hepatotoxin that poses great hazards to aquatic organisms and even human health. The zebrafish liver cell line (ZFL) is a valuable model for investigating toxicity and metabolism of toxicants. However, the toxicity of MC-LR and its effects on gene transcription of ZFL cells remains to be characterized. In this study, we determined the toxicity of MC-LR for ZFL cells and investigated the effects of MC-LR on cellular transcriptome dynamics. The EC50 of MC-LR for ZFL cells was 80.123 μg/mL. The ZFL cells were exposed to 10 μg/mL MC-LR for 0, 1, 3, 6, 12 or 24 h, and RNA-sequencing was performed to analyze gene transcription. A total of 10,209 genes were found to be regulated by MC-LR. The numbers of up- and down-regulated genes at different time points ranged from 2179 to 3202 and from 1501 to 2597, respectively. Furthermore, 1543 genes underwent differential splicing (AS) upon MC-LR exposure, of which 620 were not identified as differentially expressed gene (DEG). The effects of MC-LR on cellular functions were highly time-dependent. MAPK (mitogen-activated protein kinase) and FoxO (forkhead box O) signaling pathways were the most prominent pathways activated by MC-LR. Steroid biosynthesis and terpenoid backbone biosynthesis were the most enriched for the down-regulated genes. A gene regulatory network was constructed from the expression profile datasets and the candidate master transcription factors were identified. Our results shed light on the molecular mechanisms of MC-LR cellular toxicity and the transcriptome landscapes of ZFL cells upon MC-LR toxicity.
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Affiliation(s)
- Xing Lu
- Key Laboratory of Freshwater Biodiversity Conservation and Utilization of Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, Hubei, China.
| | - Juan Tian
- Key Laboratory of Freshwater Biodiversity Conservation and Utilization of Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, Hubei, China.
| | - Hua Wen
- Key Laboratory of Freshwater Biodiversity Conservation and Utilization of Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, Hubei, China.
| | - Ming Jiang
- Key Laboratory of Freshwater Biodiversity Conservation and Utilization of Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, Hubei, China.
| | - Wei Liu
- Key Laboratory of Freshwater Biodiversity Conservation and Utilization of Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, Hubei, China.
| | - Fan Wu
- Key Laboratory of Freshwater Biodiversity Conservation and Utilization of Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, Hubei, China.
| | - Lijuan Yu
- Key Laboratory of Freshwater Biodiversity Conservation and Utilization of Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, Hubei, China.
| | - Shan Zhong
- Department of Genetics, Wuhan University, Wuhan 430071, Hubei, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, Hubei, China; Hubei Province Key Laboratory of Allergy and Immunology, Wuhan 430071, Hubei, China.
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