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Zhao C, Jin H, Lei Y, Li Q, Zhang Y, Lu Q. The dual effects of Benzo(a)pyrene/Benzo(a)pyrene-7,8-dihydrodiol-9,10-epoxide on DNA Methylation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 950:175042. [PMID: 39084379 DOI: 10.1016/j.scitotenv.2024.175042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 07/04/2024] [Accepted: 07/23/2024] [Indexed: 08/02/2024]
Abstract
Benzo(a)pyrene (BaP) is one of the most thoroughly studied polycyclic aromatic hydrocarbons(PAHs) and a widespread organic pollutant in various areas of human life. Its teratogenic, immunotoxic and carcinogenic effects on organisms are well documented and widely recognized by researchers. In the body, BaP is enzymatically converted to form a more active benzo(a)pyrene-7,8-dihydrodiol-9,10-epoxide (BPDE). BaP/BPDE has the potential to trigger gene mutations, influence epigenetic modifications and cause damage to cellular structures, ultimately contributing to disease onset and progression. However, there are different points of view when studying epigenetics using BaP/BPDE. On the one hand, it is claimed in cancer research that BaP/BPDE contributes to gene hypermethylation and, in particular, induces the hypermethylation of tumor's suppressor gene promoters, leading to gene silencing and subsequent cancer development. Conversely, studies in human and animal populations suggest that exposure to BaP results in genome-wide DNA hypomethylation, potentially leading to adverse outcomes in inflammatory diseases. This apparent contradiction has not been summarized in research for almost four decades. This article presents a comprehensive review of the current literature on the influence of BaP/BPDE on DNA methylation regulation. It demonstrates that BaP/BPDE exerts a dual-phase regulatory effect on methylation, which is influenced by factors such as the concentration and duration of BaP/BPDE exposure, experimental models and detection methods used in various studies. Acute/high concentration exposure to BaP/BPDE often results in global demethylation of DNA, which is associated with inhibition of DNA methyltransferase 1 (DNMT1) after exposure. At certain specific gene loci (e.g., RAR-β), BPDE can form DNA adducts, recruiting DNMT3 and leading to hypermethylation at specific sites. By integrating these different mechanisms, our goal is to unravel the patterns and regulations of BaP/BPDE-induced DNA methylation changes and provide insights into future precision therapies targeting epigenetics.
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Affiliation(s)
- Cheng Zhao
- Department of Dermatology, The Second Xiangya Hospital of Central South University, Central South University Hunan Key Laboratory of Medical Epigenomics Changsha, China; Research Unit of Key Technologies of Immune-related Skin Diseases Diagnosis and Treatment, Chinese Academy of Medical Sciences Institute of Dermatology, Nanjing, China; Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China; Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, China; Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China; Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Hui Jin
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China; Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, China; Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China.
| | - Yu Lei
- Department of Dermatology, The Second Xiangya Hospital of Central South University, Central South University Hunan Key Laboratory of Medical Epigenomics Changsha, China; Research Unit of Key Technologies of Immune-related Skin Diseases Diagnosis and Treatment, Chinese Academy of Medical Sciences Institute of Dermatology, Nanjing, China; Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China; Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, China; Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China; Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Qilin Li
- Department of Dermatology, The Second Xiangya Hospital of Central South University, Central South University Hunan Key Laboratory of Medical Epigenomics Changsha, China; Research Unit of Key Technologies of Immune-related Skin Diseases Diagnosis and Treatment, Chinese Academy of Medical Sciences Institute of Dermatology, Nanjing, China; Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China; Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, China; Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China; Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Ying Zhang
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China; Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, China; Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China; Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Qianjin Lu
- Department of Dermatology, The Second Xiangya Hospital of Central South University, Central South University Hunan Key Laboratory of Medical Epigenomics Changsha, China; Research Unit of Key Technologies of Immune-related Skin Diseases Diagnosis and Treatment, Chinese Academy of Medical Sciences Institute of Dermatology, Nanjing, China; Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China; Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, China; Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China.
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Wang PX, Wu SL, Ju JQ, Jiao L, Zou YJ, Zhang KH, Sun SC, Hu LL, Zheng XB. Benzo[a]pyrene exposure disrupts the organelle distribution and function of mouse oocytes. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 281:116630. [PMID: 38917590 DOI: 10.1016/j.ecoenv.2024.116630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/22/2024] [Accepted: 06/19/2024] [Indexed: 06/27/2024]
Abstract
Benzo[a]pyrene (BaP) is a polycyclic aromatic hydrocarbon compound that is generated during combustion processes, and is present in various substances such as foods, tobacco smoke, and burning emissions. BaP is extensively acknowledged as a highly carcinogenic substance to induce multiple forms of cancer, such as lung cancer, skin cancer, and stomach cancer. Recently it is shown to adversely affect the reproductive system. Nevertheless, the potential toxicity of BaP on oocyte quality remains unclear. In this study, we established a BaP exposure model via mouse oral gavage and found that BaP exposure resulted in a notable decrease in the ovarian weight, number of GV oocytes in ovarian, and oocyte maturation competence. BaP exposure caused ribosomal dysfunction, characterized by a decrease in the expression of RPS3 and HPG in oocytes. BaP exposure also caused abnormal distribution of the endoplasmic reticulum (ER) and induced ER stress, as indicated by increased expression of GRP78. Besides, the Golgi apparatus exhibited an abnormal localization pattern, which was confirmed by the GM130 localization. Disruption of vesicle transport processes was observed by the abnormal expression and localization of Rab10. Additionally, an enhanced lysosome and LC3 fluorescence intensity indicated the occurrence of protein degradation in oocytes. In summary, our results suggested that BaP exposure disrupted the distribution and functioning of organelles, consequently affecting the developmental competence of mouse oocytes.
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Affiliation(s)
- Peng-Xia Wang
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Guangxi University, Nanning 530004, China
| | - 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
| | - Le Jiao
- 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
| | - Kun-Huan Zhang
- 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
| | - Lin-Lin Hu
- Key Laboratory of Research on Clinical Molecular Diagnosis for High Incidence Diseases in Western Guangxi, Reproductive Medicine of Guangxi Medical and Health Key Discipline Construction Project, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China.
| | - Xi-Bang Zheng
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China; Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Guangxi University, Nanning 530004, China.
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Basyal D, Lee S, Kim HJ. Antioxidants and Mechanistic Insights for Managing Dry Age-Related Macular Degeneration. Antioxidants (Basel) 2024; 13:568. [PMID: 38790673 PMCID: PMC11117704 DOI: 10.3390/antiox13050568] [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: 03/18/2024] [Revised: 04/26/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024] Open
Abstract
Age-related macular degeneration (AMD) severely affects central vision due to progressive macular degeneration and its staggering prevalence is rising globally, especially in the elderly population above 55 years. Increased oxidative stress with aging is considered an important contributor to AMD pathogenesis despite multifaceted risk factors including genetic predisposition and environmental agents. Wet AMD can be managed with routine intra-vitreal injection of angiogenesis inhibitors, but no satisfactory medicine has been approved for the successful management of the dry form. The toxic carbonyls due to photo-oxidative degradation of accumulated bisretinoids within lysosomes initiate a series of events including protein adduct formation, impaired autophagy flux, complement activation, and chronic inflammation, which is implicated in dry AMD. Therapy based on antioxidants has been extensively studied for its promising effect in reducing the impact of oxidative stress. This paper reviews the dry AMD pathogenesis, delineates the effectiveness of dietary and nutrition supplements in clinical studies, and explores pre-clinical studies of antioxidant molecules, extracts, and formulations with their mechanistic insights.
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Affiliation(s)
| | | | - Hye Jin Kim
- College of Pharmacy, Keimyung University, Dauge 42601, Republic of Korea
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Zheng X, Tang J, Song A, Zhou Y, Miao J, Li Z, Pan L. Study on reproductive endocrine disturbance and DNA damage mechanism of female Ruditapes philippinarum under Benzo[a]pyrene stress. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 340:122844. [PMID: 37918772 DOI: 10.1016/j.envpol.2023.122844] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/22/2023] [Accepted: 10/30/2023] [Indexed: 11/04/2023]
Abstract
The reproductive toxicity of polycyclic aromatic hydrocarbons (PAHs) in aquatic organisms has attracted increasing attention from scholars. Currently, research in this field primarily focuses on vertebrates such as zebrafish and other model species. However, there is still a significant knowledge gap in the toxicity of PAHs to invertebrates and its potential mechanisms. Benzo[a]pyrene (B[a]P) is one of the most representative PAHs. In this study, female Ruditapes philippinarum (R. philippinarum) was treated with B[a]P concentrations of 0, 0.8, 4, and 20 μg/L to investigate reproductive indicators in the proliferative, growth, mature, and spawn stages. Transcriptomics was used to investigate the expression of genes associated with the reproductive endocrine system, DNA repair, autophagy, apoptosis, and ovarian development at different reproductive stages. Our results suggested that B[a]P disrupted the endocrine system by interfering with the production of steroid hormones and the transmission of estrogen signals in female R. philippinarum. The structure of the ovarian DNA duplex is severely damaged under the stress of B[a]P, and a series of cellular responses caused by DNA damage are also interfered. Additionally, we observed a reduction in the gonadosomatic index (GSI) and mature oocytes numbers after B[a]P exposed. Tissue section indicated that severe damage to the ovarian structure at mature and spawn stages. In conclusion, this study combined transcriptomic and toxicological to explore the negative effects on ovarian development induced by B[a]P, focusing on reproductive endocrine disturbance and DNA damage.
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Affiliation(s)
- Xin Zheng
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Jian Tang
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Aimin Song
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Yueyao Zhou
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Jingjing Miao
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Zeyuan Li
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Luqing Pan
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China.
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5
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Li J, Bai J, Si X, Jia H, Wu Z. Benzo[a]pyrene induces epithelial tight junction disruption and apoptosis via inhibiting the initiation of autophagy in intestinal porcine epithelial cells. Chem Biol Interact 2023; 374:110386. [PMID: 36754226 DOI: 10.1016/j.cbi.2023.110386] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/29/2023] [Accepted: 02/05/2023] [Indexed: 02/10/2023]
Abstract
Ingestion of food contaminated with benzo[a]pyrene (B[a]P) poses health risks to animals and humans. However, the toxicity of B[a]P exposure on the intestinal barrier function and underlying mechanisms remain obscure. In the present study, intestinal porcine epithelial cells (IPEC-1) were challenged with different doses of B[a]P and its deleterious effects were determined. We found that B[a]P exposure led to impaired intestinal tight junction function as evidenced by reduced transepithelial electric resistance, increased permeability, and downregulated intestinal tight junction protein levels. Further study demonstrated that B[a]P treatment induced cell cycle arrest, and resulted in oxidative damage-related apoptosis in IPEC-1 cells. Intriguingly, we observed an inhibition of autophagy and an activation of unfolded protein response (UPR) in B[a]P-challenged cells, when compared with controls. To investigate the role of autophagy on B[a]P-induced epithelial tight junction disruption and apoptosis, cells were cotreated with B[a]P and rapamycin, and rapamycin dramatically improved intestinal tight junction and reduced apoptosis, indicating a protective effect of autophagy for the cells in response to B[a]P treatment. We also explored the role of UPR in B[a]P-induced cellular damage by using 4-phenylbutyric acid, an antagonist of UPR. Interestingly, B[a]P-induced apoptosis and dysfunction of the intestinal tight junction were exacerbated by 4-phenylbutyric acid, and the 4-phenylbutyric acid didn't ameliorate the inhibitory effects of B[a]P on microtubule-associated protein 1 light chain 3 (LC3-II) and lysosomal-associated membrane protein 2 (LAMP2) in IPEC-1 cells. These novel findings provided herein indicated that B[a]P induces intestinal epithelial tight junction disruption and apoptotic cell death via inhibiting autophagy in IPEC-1 cells.
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Affiliation(s)
- Jun Li
- State Key Laboratory of Animal Nutrition, Department of Companion Animal Science, Nutrition and Feed Science, China Agricultural University, Beijing, 100193, PR China
| | - Jun Bai
- State Key Laboratory of Animal Nutrition, Department of Companion Animal Science, Nutrition and Feed Science, China Agricultural University, Beijing, 100193, PR China
| | - Xuemeng Si
- State Key Laboratory of Animal Nutrition, Department of Companion Animal Science, Nutrition and Feed Science, China Agricultural University, Beijing, 100193, PR China
| | - Hai Jia
- State Key Laboratory of Animal Nutrition, Department of Companion Animal Science, Nutrition and Feed Science, China Agricultural University, Beijing, 100193, PR China
| | - Zhenlong Wu
- State Key Laboratory of Animal Nutrition, Department of Companion Animal Science, Nutrition and Feed Science, China Agricultural University, Beijing, 100193, PR China; Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, 100193, China.
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Xu H, Yi T, Liu M, Gao R, Liu X, He J, Ding Y, Geng Y, Mu X, Wang Y, Chen X. Exposure to Benzo(a)pyrene promotes proliferation and inhibits differentiation of stromal cells in mice during decidualization. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 251:114531. [PMID: 36641866 DOI: 10.1016/j.ecoenv.2023.114531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 12/22/2022] [Accepted: 01/07/2023] [Indexed: 06/17/2023]
Abstract
The environmental pollutant Benzo(a)pyrene (BaP) has an adverse effect on the reproductive performance of mammals. We previously showed that BaP treatment during early pregnancy damages endometrial morphology and impairs embryo implantation. Endometrial decidualization at the implantation site (IS) after embryo implantation is crucial for pregnancy maintenance and placental development. The balance between proliferation and differentiation in endometrial stromal cells (ESCs) is a crucial event of decidualization, which is regulated by the cell cycle. Here, we report that abnormal decidualization caused by BaP is associated with cell cycle disturbance of stromal cells. The mice in the treatment group were gavaged with 0.2 mg/kg/day BaP from day 1-8 of pregnancy, while those in control were gavaged with corn oil in parallel. BaP damaged the decidualization of ESCs and reduced the number of polyploid cells. Meanwhile, BaP up-regulated the expression of Ki67 and PCNA, affecting the differentiation of stromal cells. The cell cycle progression analysis during decidualization in vivo and in vitro showed that BaP induced polyploid cells deficiency with enhanced expressions of CyclinA(E)/CDK2, CyclinD/CDK4 and CyclinB/CDK1, which promote the transformation of cells from G1 to S phase and simultaneously activate the G2/M phase. The above results indicated that BaP exposure accelerates cell cycle progression, promotes ESC proliferation, inhibits differentiation, and impedes proper decidualization and polyploidy development. Thus, the imbalance of ESC proliferation and differentiation would be an important mechanism for BaP-induced defective decidualization.
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Affiliation(s)
- Hanting Xu
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China; College of Basic Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Ting Yi
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, PR China; Chongqing Tongnan Center for Disease Control and Prevention, Chongqing 402660, PR China
| | - Min Liu
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, PR China; School of Public Health and Management, Chongqing Three Gorges Medical College, Chongqing 404120, PR China
| | - Rufei Gao
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, PR China; Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China
| | - Xueqing Liu
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, PR China; Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China
| | - Junlin He
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, PR China; Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China
| | - Yubin Ding
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, PR China; Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China
| | - Yanqing Geng
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China; College of Basic Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Xinyi Mu
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China; College of Basic Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Yingxiong Wang
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China; College of Basic Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Xuemei Chen
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, PR China; Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China; Department of Obstetrics and Gynecology, Women and Childrens' Hospital of Chongqing Medical University, Chongqing 401147, PR China.
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He H, Huang Y, Lu Y, Wang X, Ni H, Wu Y, Xia D, Ye D, Ding J, Mao Y, Teng Y. Effect of benzo[a]pyrene on proliferation and metastasis of oral squamous cell carcinoma cells: A transcriptome analysis based on RNA-seq. ENVIRONMENTAL TOXICOLOGY 2022; 37:2589-2604. [PMID: 35870112 DOI: 10.1002/tox.23621] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 07/02/2022] [Accepted: 07/13/2022] [Indexed: 06/15/2023]
Abstract
Benzo[a]pyrene (BaP), a representative polycyclic aromatic hydrocarbon compound, is a carcinogen that causes head and neck cancers. Despite intensive research, the molecular mechanism of BaP in the development of oral squamous cell carcinoma (OSCC) remains largely unknown. In the present study, the SCC-9 human OSCC cell line was cultured in vitro, separated into treatment groups, and treated with dimethyl sulfoxide or BaP at various concentrations. The malignant behavior ascribed to the BaP treatment was investigated by cell proliferation, clony formation assay, and Transwell assays. Furthermore, transcriptome sequencing was performed to detect the differentially expressed genes, followed by quantitative real-time PCR to measure the expression levels of nine of these genes. Moreover, the Gene Ontology (GO) term and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses showed the biological processes and signaling pathways in which the target genes were involved. Significant effects on SCC-9 cell proliferation, tumorigenicity, cell migration, and invasion were observed after exposure to 8 μM BaP. Additional results revealed that BaP inhibited apoptosis in a dose-dependent manner. The transcriptome sequencing results showed 137 upregulated genes and 135 downregulated genes induced by BaP, associated with tumor-related biological processes and signaling pathways, mainly including transcriptional dysregulation in cancer, the tumor necrosis factor signaling pathway, metabolism of xenobiotics by cytochrome P450, mitogen-activated protein kinase signaling pathway, and so forth. Our study demonstrates that BaP may regulate the expression of certain genes involved in tumor-associated signaling pathways, thereby promoting the proliferative, tumorigenic, and metastatic behaviors of OSCC cells while suppressing their apoptosis.
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Affiliation(s)
- Hanyi He
- Department of Otorhinolaryngology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yixing Huang
- Department of Otorhinolaryngology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yueyue Lu
- The Fourth Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xinlu Wang
- The Fourth Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Haifeng Ni
- Department of Otorhinolaryngology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yihua Wu
- Department of Toxicology of School of Public Health, and Department of Gynecologic Oncology of Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Dajing Xia
- Department of Toxicology of School of Public Health, and Department of Gynecologic Oncology of Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Dong Ye
- Department of Otorhinolaryngology-Head and Neck Surgery, Lihuili Hospital of Ningbo University, Ningbo, China
| | - Jinwang Ding
- Department of Head and Neck Surgery, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, China
| | - Yanjiao Mao
- Department of Oncology Radiotherapy, Hangzhou Cancer Hospital, Affiliated Medical College of Zhejiang University, Hangzhou, China
| | - Yaoshu Teng
- Department of Otorhinolaryngology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
- The Fourth Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
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Lavudi K, Harika VS, Kokkanti RR, Patchigolla S, Sinha A, Patnaik S, Penchalaneni J. 2-Dimensional in vitro culture assessment of ovarian cancer cell line using cost effective silver nanoparticles from Macrotyloma uniflorum seed extracts. Front Bioeng Biotechnol 2022; 10:978846. [PMID: 36051584 PMCID: PMC9425338 DOI: 10.3389/fbioe.2022.978846] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 07/20/2022] [Indexed: 12/02/2022] Open
Abstract
Our research focused on generating AgNPs using Macrotyloma uniflorum (MU) seed extracts and studied their efficacy in combating tumor growth using the 2-Dimensional method for ovarian cancer cell line-PA-1. Characterization studies including a UV-visible spectrophotometer confirmed the surface plasmon resonance peak of 436 nm. Particle size determination data validated the nanoparticle diameter of 91.8 nm. Synthesized AgNPs possess a negative charge of -28.0 mV, which was confirmed through the zeta potential study. Structural characterization studies including XRD determined the crystal phase of AgNPs at four distant peaks at 2θ (38.17, 44.36, 64.52, and 77.46) and were assigned to 111, 200, 220, and 311 planes of the FCC. FTIR studies have confirmed the presence of O-H, N-H, C=O, ethers, C-Br, and C-I groups in AgNPs respectively. DPPH study has confirmed the presence of free radicles and we observed that at 500 μg/ml concentration, 76.08% of free radicles were formed which shows their efficiency. MTT assay shows the efficacy of MU-AgNPs in reducing the cell viability. At lower concentrations of MU-AgNP, 66% viability was observed and 9% of viability was observed at higher dose. ROS production (21%) was observed using MU-AgNPs with respect to 0.45% in controls, which affirms the capacity to induce DNA damage via apoptosis. Standard drug camptothecin generated 26% of ROS production which confirms higher potential of AgNPs in inducing DNA damage in tumor cells without causing lethality to the healthy cells. Further, the Fluorescence-activated cell sorting (FACS) study using a standard Caspase-3 marker confirms the generation of apoptotic bodies using two different concentrations of MU-AgNPs. At 40 μg, 64% of apoptotic cell death was observed, whereas, using 20 μg, 23% of apoptosis was recorded via fluorescent intensity. Propidium iodide-based Cell cycle study has shown a significant decrease in G0/G1 phase compared to control (88.8%), which further confirmed the apoptotic induction. Matrix metalloproteinases (MMP) studies using JC-1 dye, showed a significant increase in green fluorescence owing to lowered membrane potential, thus ensuring the breakdown of mitochondrial potential compared to untreated and standard drugs. With the obtained results, we are concluding that MU-AgNPs has a tremendous capacity to suppress the ovarian cancer cell proliferation in vitro by inducing DNA damage and apoptosis.
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Affiliation(s)
- Kousalya Lavudi
- KIIT School of Biotechnology, KIIT University, Bhubaneswar, Odisha, India
| | - Venkata Satya Harika
- Department of Biotechnology, Sri Padmavati Mahila Visva Vidyalayam, Tirupati, Andhra Pradesh, India
| | - Rekha Rani Kokkanti
- Department of Biotechnology, Sri Padmavati Mahila Visva Vidyalayam, Tirupati, Andhra Pradesh, India
| | - Swaroopa Patchigolla
- Department of Biotechnology, Sri Padmavati Mahila Visva Vidyalayam, Tirupati, Andhra Pradesh, India
| | - Anupriya Sinha
- KIIT School of Biotechnology, KIIT University, Bhubaneswar, Odisha, India
| | - Srinivas Patnaik
- KIIT School of Biotechnology, KIIT University, Bhubaneswar, Odisha, India
| | - Josthna Penchalaneni
- Department of Biotechnology, Sri Padmavati Mahila Visva Vidyalayam, Tirupati, Andhra Pradesh, India
- *Correspondence: Josthna Penchalaneni,
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Wu SE, Hsu JC, Chang YL, Chuang HC, Chiu YL, Chen WL. Benzo[a]pyrene exposure in muscle triggers sarcopenia through aryl hydrocarbon receptor-mediated reactive oxygen species production. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 239:113599. [PMID: 35567930 DOI: 10.1016/j.ecoenv.2022.113599] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 04/29/2022] [Accepted: 04/30/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Benzo[a]pyrene (BaP), a toxic carcinogen, is associated with various adverse effects but is rarely discussed in muscle-related disorders. This study investigated in vitro and in vivo effects triggered by BaP exposure in muscles and hypothesized that exposure might induce conditions similar to sarcopenia due to the shared mechanism of oxidative stress. In vitro experiments used C2C12 mouse myoblasts to examine effects induced by BaP exposure in control (untreated) and BaP-treated (10 µM/ml) muscle cells. An established TNF-α-treated sarcopenia model was utilized to verify our results. In vivo experiments compared immunohistochemical staining of sarcopenia-related markers in rats exposed to clean air and polluted air. RESULTS In C2C12 cells, after 2-72 h of BaP exposure, elevated mRNA and protein expressions were observed in aryl hydrocarbon receptor (AhR) and cytochrome P450 1A1, subsequently in ROS (NOX2 and NOX4) production, inflammatory cytokines (IL-6, TNF-α, and NF-kB), and proteins mediating apoptotic cell death (caspase-3 and PARP). Two myokines also altered mRNA and protein expressions akin to changes in sarcopenia, namely decreased irisin levels and increased myostatin levels. In addition, N-acetylcysteine, a well-known antioxidant, led to decrease in oxidative markers induced by BaP. The validation by TNF-α-treated sarcopenia model revealed comparable biological responses in either TNF-α or BaP treated C2C12 cells. In vivo experiments with rats exposed to air pollution showed increased expression of BaP, AhR, 8-hydroxydeoxyguanosine, and myostatin and decreased irisin expression in immunohistochemical staining. CONCLUSIONS Our results suggest that BaP exerts deleterious effects on the muscle, leading to conditions indicative of sarcopenia. Antioxidant supplementation may be a treatment option for BaP-induced sarcopenia, but further validation studies are needed.
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Affiliation(s)
- Shou-En Wu
- Department of Dermatology, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei City, Taiwan (R.O.C); Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei City, Taiwan (R.O.C); Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, Taipei, Taiwan (R.O.C)
| | - Ju-Chun Hsu
- Department of Biochemistry, National Defense Medical Center, Taiwan (R.O.C)
| | - Yung-Lung Chang
- Department of Biochemistry, National Defense Medical Center, Taiwan (R.O.C)
| | - Hsiao-Chi Chuang
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan (R.O.C); Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan (R.O.C); Cell Physiology and Molecular Image Research Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan (R.O.C)
| | - Yi-Lin Chiu
- Department of Biochemistry, National Defense Medical Center, Taiwan (R.O.C)
| | - Wei-Liang Chen
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei City, Taiwan (R.O.C); Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, Taipei, Taiwan (R.O.C); Department of Biochemistry, National Defense Medical Center, Taiwan (R.O.C).
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10
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Xu R, Pan L, Zhou Y, Gao Z, Miao J, Yang Y, Li D. Reproductive toxicity induced by benzo[a]pyrene exposure: first exploration highlighting the multi-stage molecular mechanism in female scallop Chlamys farreri. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:48675-48693. [PMID: 35195870 DOI: 10.1007/s11356-022-19235-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
Reproductive toxicity induced by benzo[a]pyrene (B[a]P) exposure has received great ecotoxicological concerns. However, huge gaps on the molecular mechanism still exist in bivalves. In this study, reproduction-related indicators were investigated in female scallops Chlamys farreri during life cycle of proliferative, growth, mature, and spawn stages, under gradient concentrations of B[a]P at 0, 0.04, 0.4, and 4 μg/L. Meanwhile, a multi-stage ovarian transcriptome analysis under 4 μg/L B[a]P exposure was also conducted to elucidate the potential molecular mechanisms. The results indicated that life-cycle exposure to 0.4 and 4 μg/L B[a]P significantly decreased GSI and sex steroid levels. Even 0.04 μg/L B[a]P could play the adverse role in DNA integrity at the mature and spawn stages. Ovarian histological sections showed that B[a]P inhibited the maturation and release of oocytes. Through the functional enrichment analysis of differentially expressed genes (DEGs) from transcriptome data, 18 genes involved in endocrine disruption effects, DNA damage and repair, and oogenesis were selected and further determined by qRT-PCR. The downregulation of genes involved in steroidogenic and estrogen signaling pathways indicated that B[a]P could cause endocrine disruption through both receptor-dependent and receptor-independent pathways. The variations of gene expressions involved in DNA single-strand break and repair implied the presence of toxic mechanisms similar with vertebrates. Additionally, the changes of gene expressions of cell cycle, apoptosis, and cell adhesion suggested that exposure to B[a]P possibly caused the reproductive toxicity effects by affecting oogenesis. Taken together, this study was a pioneer in combining genome-wide transcriptomic analysis with its corresponding reproductive indicators (GSI, sex steroid levels, DNA single-strand break, and histological sections) to explore the bivalves' toxic mechanisms under B[a]P exposure. Meanwhile, some genes involved in estrogen signaling pathway and DNA damage were firstly analyzed in bivalves, and the expression data might be useful in establishing new hypotheses and discovering new biomarkers for marine biomonitoring.
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Affiliation(s)
- Ruiyi Xu
- The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Yushan Road 5, Qingdao, 266003, People's Republic of China
| | - Luqing Pan
- The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Yushan Road 5, Qingdao, 266003, People's Republic of China.
| | - Yueyao Zhou
- The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Yushan Road 5, Qingdao, 266003, People's Republic of China
| | - Zhongyuan Gao
- The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Yushan Road 5, Qingdao, 266003, People's Republic of China
| | - Jingjing Miao
- The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Yushan Road 5, Qingdao, 266003, People's Republic of China
| | - Yingying Yang
- The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Yushan Road 5, Qingdao, 266003, People's Republic of China
| | - Dongyu Li
- The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Yushan Road 5, Qingdao, 266003, People's Republic of China
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11
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Ahamed M, Akhtar MJ, Khan MAM, Alhadlaq HA. Co-exposure of Bi 2O 3 nanoparticles and bezo[a]pyrene-enhanced in vitro cytotoxicity of mouse spermatogonia cells. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:17109-17118. [PMID: 33394445 DOI: 10.1007/s11356-020-12128-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 12/16/2020] [Indexed: 06/12/2023]
Abstract
Recent attention has been focused on reproductive toxicity of nanoscale materials in combination with pre-existing environmental pollutants. Due to its unique characteristics, bismuth (III) oxide (Bi2O3) nanoparticles (BONPs) are being used in diverse fields including cosmetics and biomedicine. Benzo[a]pyrene (BaP) is a known endocrine disruptor that most common sources of BaP exposure to humans are cigarette smoke and well-cooked barbecued meat. Hence, joint exposure of BONPs and BaP in humans is common. There is scarcity of information on toxicity of BONPs in combination with BaP in human reproductive system. In this work, combined effects of BONPs and BaP in mouse spermatogonia (GC-1 spg) cells were assessed. Results showed that combined exposure of BONPs and BaP synergistically induced cell viability reduction, lactate dehydrogenase leakage, induction of caspases (-3 and -9) and mitochondrial membrane potential loss in GC-1 spg cells. Co-exposure of BONPs and BaP also synergistically induced production of pro-oxidants (reactive oxygen species and hydrogen peroxide) and reduction of antioxidants (glutathione and several antioxidant enzymes). Experiments with N-acetyl-cysteine (NAC, a reactive oxygen species scavenger) indicated that oxidative stress was a plausible mechanism of synergistic toxicity of BONPs and BaP in GC-1 spg cells. Present data could be helpful for future in vivo research and risk assessment of human reproductive system co-exposed to BONPs and BaP.
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Affiliation(s)
- Maqusood Ahamed
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, 11451, Saudi Arabia.
| | - Mohd Javed Akhtar
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Mohd Abdul Majeed Khan
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Hisham Abdulaziz Alhadlaq
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, 11451, Saudi Arabia
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
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12
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Gou W, Luo N, Wei H, Wu H, Yu X, Duan Y, Bi C, Ning H, Hou W, Li Y. Ursolic acid derivative UA232 evokes apoptosis of lung cancer cells induced by endoplasmic reticulum stress. PHARMACEUTICAL BIOLOGY 2020; 58:707-715. [PMID: 32726164 PMCID: PMC7470152 DOI: 10.1080/13880209.2020.1794013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 06/03/2020] [Accepted: 07/05/2020] [Indexed: 05/07/2023]
Abstract
CONTEXT Ursolic acid (UA), a natural product, shows a broad spectrum of anticancer effects. However, the poor bioavailability and efficacy of UA limit its clinical application. OBJECTIVE We developed novel analogues of UA with enhanced antitumor activities by the extensive chemical modification of UA. MATERIALS AND METHODS We developed multiple compounds by structural modification of UA, and found that UA232 had stronger activity than UA. The effects of UA232 (0-50 μM) on inhibiting the proliferation of A549 and H460 cells were determined by CCK-8 for 24, 48, or 72 h. The proapoptotic effect of UA232 was analyzed by microscopy and flow cytometry, and the potential signal pathway affected by UA232 was further validated by Western blotting and flow cytometry. RESULTS Compared with UA, UA232 showed a stronger ability to inhibit the proliferation of lung cancer cells (IC50 = 5.4-6.1 μM for A549 and 3.9-5.7 μM for H460 cells). UA232 could induce not only cell cycle arrest in the G0/G1 phase but also apoptosis in both A549 and H460 cells. The treatment of UA232 could lead to an increase of CHOP expression rather than an increase in Bax or caspase-8, indicating that the apoptosis induced by UA232 was correlated with the endoplasmic reticulum stress (ER stress) pathway. Treatment with the ER stress-specific inhibitor, 4-PBA, decreased the ability of UA232 to induce apoptosis in A549 and H460 cells. CONCLUSION UA232 induced apoptosis through the ER stress pathway, and showed stronger growth-inhibitory effects in A549 and H460 cells compared to UA, which may be a potential anticancer drug to suppress the proliferation of lung cancer.
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Affiliation(s)
- Wenfeng Gou
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences, Tianjin, China
| | - Na Luo
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences, Tianjin, China
| | - Huiqiang Wei
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences, Tianjin, China
| | - Hongying Wu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences, Tianjin, China
| | - Xiaojun Yu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences, Tianjin, China
| | - Yuqing Duan
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences, Tianjin, China
| | - Changfen Bi
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences, Tianjin, China
| | - Hongxin Ning
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences, Tianjin, China
| | - Wenbin Hou
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences, Tianjin, China
| | - Yiliang Li
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences, Tianjin, China
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13
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Gan M, Ding H, Chen G. 6-Formylindolo[3,2-b]carbazole reduces apoptosis induced by benzo[a]pyrene in a mitochondrial-dependent manner. Cell Biol Int 2020; 44:2427-2437. [PMID: 32808713 DOI: 10.1002/cbin.11450] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 07/24/2020] [Accepted: 08/16/2020] [Indexed: 01/02/2023]
Abstract
Benzo[a]pyrene (B[a]P), a potent carcinogen, has been proved that it can induce apoptosis via activation of the aryl hydrocarbon receptor (AhR) pathway. The metabolite of tryptophan 6-formylindolo[3,2-b]carbazole (FICZ), an endogenous activator of AhR, plays bifunctional roles in cell growth and apoptosis. However, whether and how FICZ can reduce the toxicity of B[a]P and the mechanism underlying this remain unclear. In this study, FICZ interfered with the toxicity of B[a]P in mouse hepatocarcinoma cell line Hepa1-6. The results of the MTT assay indicated that FICZ and B[a]P made opposite effects on cell proliferation. The scratch-wound healing assay showed that B[a]P (1 µM for 24 hr) exposure triggered cell migration and that was inhibited by FICZ (10 nM). In addition, FICZ ameliorated B[a]P-induced apoptosis by inhibiting reactive oxygen species generation and caspase-3 activation, as well as increasing reduced glutathione level in mitochondria. Furthermore, gene expression analyses indicated that FICZ competed with B[a]P, which reduced the transcriptional activation of the cyp1a1 and cyp1b1 genes, as well as Bcl2 and P53. Accordingly, the interaction between FICZ and B[a]P in the AhR pathway inhibited apoptosis in a mitochondrial-dependent manner, suggesting that endogenous compound may reduce the toxicity of exogenous pollutant in vivo and providing an available way to improve health condition related to the hepatic metabolic disorder.
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Affiliation(s)
- Min Gan
- Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China.,Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Hongbiao Ding
- Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China.,Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Gang Chen
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China
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14
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Tian Y, Liu J, Pan L. The mechanism of Mitogen-Activated Protein Kinases to mediate apoptosis and immunotoxicity induced by Benzo[a]pyrene on hemocytes of scallop Chlamys farreri in vitro. FISH & SHELLFISH IMMUNOLOGY 2020; 102:64-72. [PMID: 32268177 DOI: 10.1016/j.fsi.2020.04.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 03/30/2020] [Accepted: 04/03/2020] [Indexed: 06/11/2023]
Abstract
Benzo [a]pyrene (B [a]P) has received widespread attention for serious pollution in the sea, which may reduce immunity and lead to the outbreak of disease in bivalves. However, the mechanism of immunotoxicity induced by B [a]P in bivalves was still unclear. Previous studies have found that Mitogen-Activated Protein Kinases (MAPKs) including three classic pathways (ERK, p38 and JNK) play an important role in mediating this process. Thus, in order to explore the mechanism of immunotoxicity induced by B [a]P in scallop Chlamys farreri, hemocytes were treated with PD98059 (ERK inhibitor), SB203580 (p38 inhibitor) and SP600125 (JNK inhibitor) for 1 h and then incubation with B [a]P for 24 h at 1 μg/mL. Indexes including oxidative damage, apoptotic rate, and immune indicators were detected in the present study. The results showed that the increase of Reactive Oxygen Species (ROS) and DNA damage induced by B [a]P was inhibited with PD98059 and SB203580. Besides, lysosomal membrane stability (LMS) damage was promoted by PD98059, while it was opposite when treated with SB203580. Moreover, the ascended apoptosis rate induced by B [a]P was increased significantly after treatment with PD98059, but it was remarkably attenuated by SB203580 and SP600125. However, the opposite pattern was showed in phagocytosis compared with apoptosis rate in all of three inhibitors. In addition, antibacterial activity and bacteriolytic activity were enhanced by SB203580 while inhibited by PD98059. Therefore, these results showed that MAPKs directly or indirectly mediate the decrease of oxidative damage, apoptosis and immune defense ability of C. farreri hemocytes, which suggesting ERK/p38/JNK pathways have different functions in the apoptosis and immunity of C. farreri hemocytes after B [a]P exposure. In conclusion, this study intended to enrich the theoretical basis for immunotoxicology of bivalves exposed to pollutants.
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Affiliation(s)
- Yimeng Tian
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China
| | - Jing Liu
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China
| | - Luqing Pan
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China.
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15
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Torres-Ávila JF, Espitia-Pérez L, Bonatto D, Silva FRD, Oliveira IMD, Silva LFO, Corrêa DS, Dias JF, Silva JD, Henriques JAP. Systems chemo-biology analysis of DNA damage response and cell cycle effects induced by coal exposure. Genet Mol Biol 2020; 43:e20190134. [PMID: 32609278 PMCID: PMC7315349 DOI: 10.1590/1678-4685-gmb-2019-0134] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 04/06/2020] [Indexed: 12/31/2022] Open
Abstract
Cell cycle alterations are among the principle hallmarks of cancer. Consequently, the study of cell cycle regulators has emerged as an important topic in cancer research, particularly in relation to environmental exposure. Particulate matter and coal dust around coal mines have the potential to induce cell cycle alterations. Therefore, in the present study, we performed chemical analyses to identify the main compounds present in two mineral coal samples from Colombian mines and performed systems chemo-biology analysis to elucidate the interactions between these chemical compounds and proteins associated with the cell cycle. Our results highlight the role of oxidative stress generated by the exposure to the residues of coal extraction, such as major inorganic oxides (MIOs), inorganic elements (IEs) and polycyclic aromatic hydrocarbons (PAH) on DNA damage and alterations in the progression of the cell cycle (blockage and/or delay), as well as structural dysfunction in several proteins. In particular, IEs such as Cr, Ni, and S and PAHs such as benzo[a]pyrene may have influential roles in the regulation of the cell cycle through DNA damage and oxidative stress. In this process, cyclins, cyclin-dependent kinases, zinc finger proteins such as TP53, and protein kinases may play a central role.
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Affiliation(s)
- Jose F Torres-Ávila
- Universidade Federal do Rio Grande do Sul, Centro de Biotecnologia, Departamento de Biofísica, Porto Alegre, RS, Brazil.,Universidad Simón Bolívar, Facultad de Ciencias Básicas y Biomédicas, Barranquilla, Colombia
| | - Lyda Espitia-Pérez
- Universidad del Sinú, Grupo de Investigación Biomédica y Biología Molecular, Montería, Córdoba, Colombia
| | - Diego Bonatto
- Centro de Biotecnologia da Universidade Federal do Rio Grande do Sul, Departamento de Biologia Molecular e Biotecnologia, Porto Alegre, RS, Brazil
| | | | - Iuri Marques de Oliveira
- Universidade Federal do Rio Grande do Sul, Centro de Biotecnologia, Departamento de Biofísica, Porto Alegre, RS, Brazil
| | - Luís F O Silva
- Universidad de la Costa, Civil and Environmental Department, Barranquilla, Colombia
| | - Dione Silva Corrêa
- Universidade Luterana do Brasil, Programa de Pós-Graduação em Genética e Toxicologia Aplicada, Centro de Pesquisa de Produtos e Desenvolvimento, Canoas, RS, Brazil
| | - Johnny Ferraz Dias
- Universidade Federal do Rio Grande do Sul, Instituto de Física, Laboratório de Implantação de Íons, Porto Alegre, RS, Brazil
| | - Juliana da Silva
- Universidade Luterana do Brasil, Laboratório de Toxicologia Genética, Canoas, RS, Brazil.,Universidade La Salle, Canoas, RS, Brazil
| | - João Antonio Pêgas Henriques
- Universidade Federal do Rio Grande do Sul, Centro de Biotecnologia, Departamento de Biofísica, Porto Alegre, RS, Brazil.,Universidade de Caxias do Sul, Instituto de Biotecnologia, Laboratório de Genômica, Proteômica e Reparo de DNA, RS, Brazil
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16
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Azari MR, Mohammadian Y, Pourahmad J, Khodagholi F, Mehrabi Y. Additive toxicity of Co-exposure to pristine multi-walled carbon nanotubes and benzo α pyrene in lung cells. ENVIRONMENTAL RESEARCH 2020; 183:109219. [PMID: 32085994 DOI: 10.1016/j.envres.2020.109219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 02/01/2020] [Accepted: 02/02/2020] [Indexed: 06/10/2023]
Abstract
The Mixture exposure to pristine multi-walled carbon nanotubes (P-MWCNTs) and polycyclic aromatic hydrocarbons (PAHs) such as benzo α pyrene (BaP) in the environment is inevitable. Assessment toxicity of P-MWCNTs and BaP individually may not provide sufficient toxicological information. The objective of this work is to investigate the combined toxicity of P-MWCNTs and BaP in human epithelial lung cells (A549). The physico-chemical properties of P-MWCNTs were determined suing analytical instruments. The toxicity of P-MWCNTs and BaP on A549 lung cells individually or combined were assessed. For toxicity assessment, cell viability, ROS generation, oxidative DNA damage, and apoptosis experiments were conducted. The results of this study demonstrated that P-MWCNTs and BaP individually reduced cell viability in A549 lung cells, and oxidative stress was as the possible mechanism of cytotoxicity. The co-exposure to P-MWCNTs and BaP enhanced the cytotoxicity compared to exposure to P-MWCNTs and BaP individually, but not statistically significant. The two-factorial analysis demonstrated an additive toxicity interaction for co-exposure to P-MWCNTs and BaP. The complicated toxicity interaction among BaP with fibers and metal impurities of P-MWCNTS could be probable reasons for additive toxicity interaction. Results of this study could be helpful as the basis for future studies and risk assessment of co-exposure to MWCNTs and PAHs.
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Affiliation(s)
- Mansour Rezazadeh Azari
- School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yousef Mohammadian
- Department of Occupational Health Engineering, Faculty of Health, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Jalal Pourahmad
- Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fariba Khodagholi
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yadollah Mehrabi
- School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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17
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Jian S, Chen L, Minxue L, Hongmin C, Ronghua T, Xiaoxuan F, Binbin Z, Shiwen G. Tanshinone I induces apoptosis and protective autophagy in human glioblastoma cells via a reactive oxygen species‑dependent pathway. Int J Mol Med 2020; 45:983-992. [PMID: 32124953 PMCID: PMC7053869 DOI: 10.3892/ijmm.2020.4499] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 11/25/2019] [Indexed: 01/03/2023] Open
Abstract
Glioma is the most common primary malignancy of the central nervous system and is associated with high mortality rates. Despite the available treatment options including surgery, radiotherapy and chemotherapy, the median patient survival rate is low. Therefore, the development of novel anticancer agents for the treatment of glioma is urgently required. Tanshinone I (TS I) is a tanshinone compound that is isolated from Danshen. Accumulating evidence indicates that TS I exhibits antiproliferative activity in a variety of cancer types. However, the role of TS I and its mechanism of action in human glioma remain to be elucidated. In the present study, the anticancer potential of TS I against human glioma U87 MG cells was investigated. The results indicated that TS I exerted a potential cytotoxic effect on human glioma U87 MG cells. TS I was found to induce cell proliferation, inhibition, cell cycle arrest, apoptosis and autophagy in U87 MG cells. Mechanistic experiments indicated that TS I activated endoplasmic reticulum (ER) stress and inhibited AKT signaling and apoptosis in human glioma U87 MG cells. Furthermore, the present study demonstrated that TS I induced protective autophagy in U87 MG cells. Additionally, ER stress and AKT signal-mediated apoptosis and protective autophagy were found to be induced by TS I via intracellular reactive oxygen species accumulation. The results of the present study demonstrated that TS I may be a potential anticancer drug candidate that may be of value in the treatment of human glioma.
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Affiliation(s)
- Shangguan Jian
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Liang Chen
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Lian Minxue
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Che Hongmin
- Department of Neurosurgery, Xi'an Gaoxin Hospital, Xi'an, Shaanxi 710061, P.R. China
| | - Tang Ronghua
- Department of Neurosurgery, Chongqing University Cancer Hospital, Chongqing 400030, P.R. China
| | - Fan Xiaoxuan
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Zhang Binbin
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Guo Shiwen
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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18
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Almatroodi SA, Alrumaihi F, Alsahli MA, Alhommrani MF, Khan A, Rahmani AH. Curcumin, an Active Constituent of Turmeric Spice: Implication in the Prevention of Lung Injury Induced by Benzo(a) Pyrene (BaP) in Rats. Molecules 2020; 25:molecules25030724. [PMID: 32046055 PMCID: PMC7037262 DOI: 10.3390/molecules25030724] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 01/31/2020] [Accepted: 02/05/2020] [Indexed: 02/07/2023] Open
Abstract
Benzo(a)pyrene (BaP) is a well-known carcinogen and enhances oxidative stress and apoptosis and also alters several molecular pathways. Curcumin is an active ingredient of Curcuma longa, and it has potent anti-inflammatory, antioxidant activity that defends cells from oxidative stress and cell death. The objectives of the present study were to explore the protective effects of curcumin against long-term administration of BaP induced disturbances in lungs of rats. Male rats were randomly divided into four groups: saline control, BaP only, BaP + curcumin, and curcumin only. Lung histopathology, electron microscopy, inflammatory cytokine release, antioxidant levels, apoptosis, and cell cycle were examined. Instillation of BaP significantly increased infiltration of inflammatory cells in alveolar space and inflammatory cytokine in blood. BaP induced lung tissue alterations including mild bronchitis, scant chronic inflammatory cell infiltrate in the wall of the respiratory bronchiole, and mild intra-alveolar haemorrhage. However, these alterations were found to be significantly less as mild inflammatory cell infiltrate in curcumin plus BaP treated group. Furthermore, electron microscopy results also showed necrotic changes and broken cell membrane of Type-II epithelial cell of alveoli in BaP group, which was reduced after adding curcumin treatment. In addition, we found BaP plus curcumin treatment effectively reduced inflammatory cytokines Tumour Necrosis Factor alpha (TNF-α), Interleukin 6 (IL-6), and C-reactive protein (CRP) levels in blood serum. Moreover, the levels of tunnel staining and p53 expression were significantly increased by BaP, whereas these changes were noticeably modulated after curcumin treatment. BaP also interferes in normal cell cycle, which was significantly improved with curcumin treatment. Overall, our findings suggest that curcumin attenuates BaP -induced lung injury, probably through inhibiting inflammation, oxidative stress and apoptosis in lung epithelial cells, and improving cell proliferation and antioxidants level. Thus, curcumin may be an alternative therapy for improving the outcomes of Benzo(a)pyrene-induced lung injury.
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Affiliation(s)
- Saleh A. Almatroodi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraidah 52571, Saudi Arabia; (S.A.A.); (F.A.); (M.A.A.); (M.F.A.)
| | - Faris Alrumaihi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraidah 52571, Saudi Arabia; (S.A.A.); (F.A.); (M.A.A.); (M.F.A.)
| | - Mohammed A. Alsahli
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraidah 52571, Saudi Arabia; (S.A.A.); (F.A.); (M.A.A.); (M.F.A.)
| | - Mazen Fahad Alhommrani
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraidah 52571, Saudi Arabia; (S.A.A.); (F.A.); (M.A.A.); (M.F.A.)
| | - Arif Khan
- Department of Basic Health Sciences, College of Applied Medical Science, Qassim University, Buraidah 52571, Saudi Arabia;
| | - Arshad Husain Rahmani
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraidah 52571, Saudi Arabia; (S.A.A.); (F.A.); (M.A.A.); (M.F.A.)
- Correspondence: ; Tel.: +3800050 (ext. 4835)
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19
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Li X, He S, Gao C, Deng H, Liu Y, Li C, Yuan L, Luo Y. Isoorientin attenuates benzo[a]pyrene-induced liver injury by inhibiting autophagy and pyroptosis in vitro and vivo. FOOD AGR IMMUNOL 2019. [DOI: 10.1080/09540105.2019.1638888] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Xueyi Li
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Shenyuan He
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Chunxia Gao
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Hong Deng
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Yongfeng Liu
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Cuiqin Li
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Li Yuan
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Ying Luo
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, People’s Republic of China
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20
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Azari MR, Mohammadian Y, Peirovi H, Omidi M, Khodagholi F, Pourahmad J, Mehrabi Y, Rafieepour A. Antagonistic effect of co-exposure to short-multiwalled carbon nanotubes and benzo[a]pyrene in human lung cells (A549). Toxicol Ind Health 2019; 35:445-456. [PMID: 31244407 DOI: 10.1177/0748233719854570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In theenvironment, co-exposure to short-multiwalled carbon nanotubes (S-MWCNTs) and polycyclic aromatic compounds (PAHs) has been reported. In the co-exposure condition, the adsorption of PAHs onto MWCNTs may reduce PAHs toxic effect. The objective of this study was to investigate the cytotoxicity of S-MWCNTs and benzo[a]pyrene (B[a]P) individually, and in combination in human lung cell lines (A549). The adsorption of B[a]P onto MWCNTs was measured spectrometrically. In vitro toxicity was assessed through cell viability, reactive oxygen species (ROS) generation, apoptosis, and 8-hydroxy-2'-deoxyguanosine (8-OHdG) generation experiments. The S-MWCNTs demonstrated cytotoxicity through the generation of ROS, apoptosis, and 8-OHdG in A549 cells. Co-exposure to S-MWCNTs and B[a]P demonstrated a significant reduction in ROS generation and apoptosis compared with the sum of their separate toxic effects at the same concentrations. Decreasing the bioavailability of B[a]P by MWCNT interaction is the probable reason for the antagonistic effects of the co-exposure condition. The findings of this study will contribute to a better understanding of the health effects of co-exposures to air pollutants and could be a starting point for modifying future health risk assessments.
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Affiliation(s)
- Mansour Rezazadeh Azari
- 1 School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yousef Mohammadian
- 2 Department of Occupational Health Engineering, Faculty of Health, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Habibollah Peirovi
- 3 Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Meisam Omidi
- 4 Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fariba Khodagholi
- 5 Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Jalal Pourahmad
- 6 Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yadollah Mehrabi
- 1 School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Athena Rafieepour
- 1 School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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21
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Rezazadeh Azari M, Mohammadian Y, Pourahmad J, Khodagholi F, Peirovi H, Mehrabi Y, Omidi M, Rafieepour A. Individual and combined toxicity of carboxylic acid functionalized multi-walled carbon nanotubes and benzo a pyrene in lung adenocarcinoma cells. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:12709-12719. [PMID: 30879234 DOI: 10.1007/s11356-019-04795-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 03/05/2019] [Indexed: 06/09/2023]
Abstract
Co-exposure to carboxylic acid functionalized multi-walled carbon nanotubes (F-MWCNTs) and polycyclic aromatic hydrocarbons (PAHs) such as benzo a pyrene (BaP) in ambient air have been reported. Adsorption of BaP to F-MWCNTs can influence combined toxicity. Studying individual toxicity of F-MWCNTs and BaP might give unrealistic data. Limited information is available on the combined toxicity of F-MWCNTs and BaP in human cells. The objective of the present work is to evaluate the toxicity of F-MWCNTs and BaP individually and combined in human lung adenocarcinoma (A549 cells). The in vitro toxicity is evaluated through cell viability, the production of reactive oxygen species (ROS), apoptosis, and the production of 8-OHdG assays. Adsorption of BaP to F-MWCNTs was confirmed using a spectrophotometer. The results indicated that the F-MWCNTs and BaP reduce cell viability individually and produce ROS, apoptosis, and 8-OHdG in exposed cells. Stress oxidative is found to be a mechanism of cytotoxicity for both F-MWCNTs and BaP. Combined exposure to F-MWCNTs and BaP decreases cytotoxicity compared to individual exposure, but the difference is not statistically significant in all toxicity assays; hence, the two-factorial analysis indicated an additive toxic interaction. Adsorption of BaP to F-MWCNTs could mitigate the bioavailability and toxicity of BaP in biological systems. Considering the mixture toxicity of MWCNTs and BaP is required for risk assessment of ambient air contaminants.
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Affiliation(s)
- Mansour Rezazadeh Azari
- School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yousef Mohammadian
- School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Department of Occupational Health Engineering, Faculty of Health, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Jalal Pourahmad
- Department of Toxicology, Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fariba Khodagholi
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Habibollah Peirovi
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yadollah Mehrabi
- School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Meisam Omidi
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Athena Rafieepour
- School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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22
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Kim SM, Hwang KA, Choi KC. Potential roles of reactive oxygen species derived from chemical substances involved in cancer development in the female reproductive system. BMB Rep 2019. [PMID: 29921411 PMCID: PMC6283023 DOI: 10.5483/bmbrep.2018.51.11.056] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Reactive oxygen species (ROS) are major sources of cellular oxidative stress. Specifically, cancer cells harbor genetic alterations that promote a continuous and elevated production of ROS. While such oxidative stress conditions could be harmful to normal cells, they facilitate cancer cell growth in multiple ways by causing DNA damage and genomic instability, and ultimately by reprogramming cancer cell metabolism. This review provides up to date findings regarding the roles of ROS generation induced by diverse biological molecules and chemicals in representative women’s cancer. Specifically, we describe the cellular signaling pathways that regulate direct or indirect interactions between ROS homeostasis and metabolism within female genital cancer cells.
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Affiliation(s)
- Soo-Min Kim
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea
| | - Kyung-A Hwang
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea
| | - Kyung-Chul Choi
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea
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23
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Chanyshev MD, Koval OA, Nushtaeva AA, Gulyaeva LF. Effect of benzo[a]pyrene on the expression of miR-126, miR-190a and their target genes EGFL7, TP53INP1 and PHLPP1 in primary endometrial cells. J Biochem Mol Toxicol 2019; 33:e22314. [PMID: 30811740 DOI: 10.1002/jbt.22314] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 11/24/2018] [Accepted: 01/09/2019] [Indexed: 11/09/2022]
Abstract
The main topic of this study was to investigate the effect of benzo[a]pyrene (BP) on microRNAs and their target genes expression levels in primary cell cultures from normal and malignant endometrial tissue. MicroRNA-126 (miR-126) and miR-190a were most sensitive to BP treatment. The treatment of both cultures with BP was accompanied by a decrease of miR-126 level and an increase of EGFL7 gene expression level. BP-induced upregulation of miR-190a was detected only in normal cells and it was accompanied with decrease of mRNA levels of TP53INP1 and PHLPP1 genes. Taking into account that BP promoted the proliferation of normal cells and amplified apoptosis of cancer cells, it is possible that miR-190a is involved in general cellular response to BP. The findings of this study indicate that miR-190a and its target genes may be involved in the regulation of cell fate under BP treatment.
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Affiliation(s)
- M D Chanyshev
- Federal Research Center of Fundamental and Translational Medicine, Novosibirsk, Russia.,Novosibirsk State University, Novosibirsk, Russia
| | - O A Koval
- Novosibirsk State University, Novosibirsk, Russia.,Institute of Chemical Biology and Fundamental Medicine, Novosibirsk, Russia
| | - A A Nushtaeva
- Institute of Chemical Biology and Fundamental Medicine, Novosibirsk, Russia
| | - L F Gulyaeva
- Federal Research Center of Fundamental and Translational Medicine, Novosibirsk, Russia.,Novosibirsk State University, Novosibirsk, Russia
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24
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Yi T, Liu M, Li X, Liu X, Ding Y, He J, Xu H, Gao R, Mu X, Geng Y, Wang Y, Chen X. Benzo(a)pyrene inhibits endometrial cell apoptosis in early pregnant mice via the WNT5A pathway. J Cell Physiol 2018; 234:11119-11129. [PMID: 30443902 DOI: 10.1002/jcp.27762] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 10/29/2018] [Indexed: 12/14/2022]
Abstract
Benzo(a)pyrene (BaP) is an endocrine-disrupting pollutant present in various aspects of daily life, and studies have demonstrated that BaP exerts reproductive toxicity. We previously showed that BaP damages endometrial morphology and decreases the number of implantation sites in early pregnant mice, but the mechanisms underlying these effects remain unclear. The endometrial function is crucial for implantation, which is associated with endometrial cell apoptosis. In this study, we focused on the effect of BaP on endometrial cell apoptosis and the role of WNT signaling during this process. Pregnant mice were gavaged with corn oil (control group) or 0.2 mg·kg-1 ·day -1 BaP (treatment group) from Days 1 to 6 of pregnancy. BaP impaired endometrial function by decreasing the expression of HOXA10 and BMP2, two markers of receptivity and decidualization. WNT5A and β-catenin were activated in the BaP group. BaP affected the expression of apoptosis-related proteins and inhibited the apoptosis of endometrial stromal cells. In vitro, human endometrial stromal cells (HESCs) were treated with different concentrations of BaP (dimethyl sulfoxide (DMSO); 5, 10 µM). WNT5A and β-catenin were also upregulated in the BaP treatment group. HESC apoptosis was restrained by BaP. Inhibiting WNT5A by SFRP5 partially restored the effect of BaP on apoptosis. In summary, these results suggested that BaP exposure during early pregnancy activates WNT5A/β-catenin signaling pathway, which inhibits the endometrial cell apoptosis and potentially destroys endometrial function.
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Affiliation(s)
- Ting Yi
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Min Liu
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Xueyan Li
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Xueqing Liu
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Yubin Ding
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Junlin He
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Hanting Xu
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Rufei Gao
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Xinyi Mu
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Yanqing Geng
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Yingxiong Wang
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Xuemei Chen
- Laboratory of Reproductive Biology, School of Public Health and Management, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
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25
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Smit E, Kleinjans JCS, van den Beucken T. Phosphorylation of eIF2α promotes cell survival in response to benzo[a]pyrene exposure. Toxicol In Vitro 2018; 54:330-337. [PMID: 30385349 DOI: 10.1016/j.tiv.2018.10.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 10/02/2018] [Accepted: 10/27/2018] [Indexed: 10/28/2022]
Abstract
Cellular adaptation is important to cope with various stresses induced by altered environmental conditions. By controlling mRNA translation rates cells may adapt to stress to promote survival. Phosphorylation of eIF2α at serine 51 is one of the pathways controlling mRNA translation. Here we investigated the role of phosphorylated eIF2α during exposure to the environmental carcinogen benzo(a)pyrene (BaP). For our study we used mouse embryonic fibroblasts with a wild type eIF2α (MEF WT) and mouse embryonic fibroblasts with an eIF2α S51A knock-in mutation that cannot be phosphorylated. Here, we show that eIF2α phosphorylation occurs in MEF WT cells but not in MEF S51A cells. Survival of MEF S51A cells is profoundly reduced compared to MEF WT controls after BaP exposure. No differences in DNA damage or ROS production were observed between MEF WT and S51A cells. Disruption of eIF2α phosphorylation caused increased levels of apoptosis in response to BaP. This work demonstrates that eIF2α phosphorylation is important for reducing apoptosis and promoting cell survival in order to adapt to BaP exposure.
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Affiliation(s)
- Evelyn Smit
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, the Netherlands
| | - Jos C S Kleinjans
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, the Netherlands
| | - Twan van den Beucken
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, the Netherlands.
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26
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Smit E, Caiment F, Piepers J, Kleinjans JCS, van den Beucken T. Translational regulation is a key determinant of the cellular response to benzo[a]pyrene. Toxicol Lett 2018; 295:144-152. [PMID: 29906497 DOI: 10.1016/j.toxlet.2018.06.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 05/30/2018] [Accepted: 06/11/2018] [Indexed: 11/19/2022]
Abstract
Translational control is a cellular response mechanism which initiates adaptation during various stress situations. Here, we investigated the role of translational control after benzo[a]pyrene (BaP) exposure in primary mouse hepatocytes. Translated mRNAs were separated and captured based on the number of associated ribosomes using sucrose gradients and subjected to RNA sequencing (RNAseq) to investigate translational changes. Furthermore, unseparated RNA (total RNA) was used for RNAseq to determine the transcriptional alterations. We showed that, after 24 h of exposure to 10 μM BaP, the number of genes altered by changes in mRNA translation was substantially higher compared with the number of genes altered by transcription. Although part of the BaP regulated genes were regulated by both transcription and translation, we identified genes that were uniquely regulated by mRNA translation. These mRNA transcripts encode proteins that are involved in biological processes that are not affected by transcriptional regulation. Al together this work identified a new layer of gene expression regulation that might contribute to BaP-induced carcinogenesis.
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Affiliation(s)
- Evelyn Smit
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, 6200MD, The Netherlands
| | - Florian Caiment
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, 6200MD, The Netherlands
| | - Jolanda Piepers
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, 6200MD, The Netherlands
| | - Jos C S Kleinjans
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, 6200MD, The Netherlands
| | - Twan van den Beucken
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, 6200MD, The Netherlands.
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27
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Effects of cigarette smoke extracts on apoptosis and oxidative stress in two models of ovarian cancer in vitro. Toxicol In Vitro 2018; 52:161-169. [DOI: 10.1016/j.tiv.2018.06.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 05/08/2018] [Accepted: 06/07/2018] [Indexed: 02/06/2023]
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