1
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Wang H, Gan X, Tang Y. Mechanisms of Heavy Metal Cadmium (Cd)-Induced Malignancy. Biol Trace Elem Res 2024:10.1007/s12011-024-04189-2. [PMID: 38683269 DOI: 10.1007/s12011-024-04189-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 04/16/2024] [Indexed: 05/01/2024]
Abstract
The environmental pollution of cadmium is worsening, and its significant carcinogenic effects on humans have been confirmed. Cadmium can induce cancer through various signaling pathways, including the ERK/JNK/p38MAPK, PI3K/AKT/mTOR, NF-κB, and Wnt. It can also cause cancer by directly damaging DNA and inhibiting DNA repair systems, or through epigenetic mechanisms such as abnormal DNA methylation, LncRNA, and microRNA. However, the detailed mechanisms of Cd-induced cancer are still not fully understood and require further investigation.
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Affiliation(s)
- Hairong Wang
- School of Public Health, Southwest Medical University, No. 1, Section 1, Xianglin Road, Longmatan District, Luzhou, 646000, China
| | - Xuehui Gan
- School of Public Health, Southwest Medical University, No. 1, Section 1, Xianglin Road, Longmatan District, Luzhou, 646000, China
| | - Yan Tang
- School of Public Health, Southwest Medical University, No. 1, Section 1, Xianglin Road, Longmatan District, Luzhou, 646000, China.
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2
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Ali Hussein M, Kamalakkannan A, Valinezhad K, Kannan J, Paleati N, Saad R, Kajdacsy-Balla A, Munirathinam G. The dynamic face of cadmium-induced Carcinogenesis: Mechanisms, emerging trends, and future directions. Curr Res Toxicol 2024; 6:100166. [PMID: 38706786 PMCID: PMC11068539 DOI: 10.1016/j.crtox.2024.100166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/18/2024] [Accepted: 04/03/2024] [Indexed: 05/07/2024] Open
Abstract
Cadmium (Cd) is a malleable element with odorless, tasteless characteristics that occurs naturally in the earth's crust, underground water, and soil. The most common reasons for the anthropological release of Cd to the environment include industrial metal mining, smelting, battery manufacturing, fertilizer production, and cigarette smoking. Cadmium-containing products may enter the environment as soluble salts, vapor, or particle forms that accumulate in food, soil, water, and air. Several epidemiological studies have highlighted the association between Cd exposure and adverse health outcomes, especially renal toxicity, and the impact of Cd exposure on the development and progression of carcinogenesis. Also highlighted is the evidence for early-life and even maternal exposure to Cd leading to devastating health outcomes, especially the risk of cancer development in adulthood. Several mechanisms have been proposed to explain how Cd mediates carcinogenic transformation, including epigenetic alteration, DNA methylation, histone posttranslational modification, dysregulated non-coding RNA, DNA damage in the form of DNA mutation, strand breaks, and chromosomal abnormalities with double-strand break representing the most common DNA form of damage. Cd induces an indirect genotoxic effect by reducing p53's DNA binding activity, eventually impairing DNA repair, inducing downregulation in the expression of DNA repair genes, which might result in carcinogenic transformation, enhancing lipid peroxidation or evasion of antioxidant interference such as catalase, superoxide dismutase, and glutathione. Moreover, Cd mediates apoptosis evasion, autophagy activation, and survival mechanisms. In this review, we decipher the role of Cd mediating carcinogenic transformation in different models and highlight the interaction between various mechanisms. We also discuss diagnostic markers, therapeutic interventions, and future perspectives.
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Affiliation(s)
- Mohamed Ali Hussein
- Department of Pharmaceutical Services, Children’s Cancer Hospital Egypt, 57357 Cairo, Egypt
- Institute of Global Health and Human Ecology (IGHHE), School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
| | - Abishek Kamalakkannan
- Department of Biomedical Sciences, College of Medicine, University of Illinois, Rockford, IL 61107, USA
| | - Kamyab Valinezhad
- Department of Biomedical Sciences, College of Medicine, University of Illinois, Rockford, IL 61107, USA
| | - Jhishnuraj Kannan
- Department of Biomedical Sciences, College of Medicine, University of Illinois, Rockford, IL 61107, USA
| | - Nikhila Paleati
- Department of Psychology and Neuroscience, College of Undergraduate Studies, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Rama Saad
- Department of Hematology/Oncology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - André Kajdacsy-Balla
- Department of Pathology, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Gnanasekar Munirathinam
- Department of Biomedical Sciences, College of Medicine, University of Illinois, Rockford, IL 61107, USA
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3
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Huang J, Fang J, Xu X, Qian X, Zhang X. SETD1A promotes the proliferation and glycolysis of nasopharyngeal carcinoma cells by activating the PI3K/Akt pathway. Open Med (Wars) 2022; 17:1849-1859. [DOI: 10.1515/med-2022-0586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 11/23/2022] Open
Abstract
Abstract
Nasopharyngeal carcinoma is one of the common malignant tumors that the pathogenesis has not yet been completely defined. SETD1A (histone lysine methyltransferase SET domain-containing 1A) is related to the occurrence of various cancers. However, the role of SETD1A in nasopharyngeal carcinoma remains unclear. The SETD1A overexpression vector, si-NC, si-SETD1A#1, and si-SETD1A#2 were transfected into nasopharyngeal carcinoma cells to overexpress or knockdown SETD1A expression. The assay of biofunction was used to explore the role of SETD1A in nasopharyngeal carcinoma cells. The assay of glucose uptake, lactate release, ATP level, western blot, cell proliferation, and cellular apoptosis analysis were performed to investigate the potential mechanism of SETD1A regulation in nasopharyngeal carcinoma. This study was the first to show that SETD1A was upregulated in nasopharyngeal carcinoma cells and the overexpression of SETD1A significantly promoted the cell proliferation and glycolysis and suppressed the cellular apoptosis. Moreover, SETD1A enhances aerobic glycolysis and cell biological function of nasopharyngeal carcinoma cells via PI3K/AKT signaling pathway. SETD1A induced PI3K/AKT activation and subsequently prevented cellular apoptosis. In conclusion, this study identified overexpressed SETD1A as a positive regulator of proliferation that induced nasopharyngeal carcinoma cells’ aerobic glycolysis via PI3K/AKT signaling activation in vitro. This study laid a strong foundation for unveiling the precise anticancer mechanism of SETD1A. The SETD1A may become a novel biomarker for further inhibitor design to obstruct the PI3K/AKT-dependent nasopharyngeal carcinoma progression.
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Affiliation(s)
- Jianyi Huang
- Department of Classics of Traditional Chinese Medicine, Taizhou Hospital of Traditional Chinese Medicine , Taizhou , Jiangsu, 225300 , China
| | - Jinshu Fang
- Department of Oncology, Taizhou Hospital of Traditional Chinese Medicine , Taizhou , Jiangsu, 225300 , China
| | - Xiao Xu
- Department of Oncology, Taizhou Hospital of Traditional Chinese Medicine , Taizhou , Jiangsu, 225300 , China
| | - Xueshen Qian
- Department of Clinical Laboratory, Taizhou Hospital of Traditional Chinese Medicine , Taizhou , Jianshu, 22530 , China
| | - Xia Zhang
- Department of Otorhinolaryngology, Changzhou Second People’s Hospital , No. 1 29, Xinglong Lane, Tianning District , Changzhou , Jiangsu, 213003 , China
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4
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Yang Z, Ye X, Zhang Y, Huang Y, Chen J, Zeng Y, Chen J. ECRG4 acts as a tumor suppressor in nasopharyngeal carcinoma by suppressing the AKT/GSK3β/β-catenin signaling pathway. Cytotechnology 2022; 74:231-243. [PMID: 35464163 PMCID: PMC8976024 DOI: 10.1007/s10616-022-00520-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 01/17/2022] [Indexed: 02/05/2023] Open
Abstract
UNLABELLED Nasopharyngeal carcinoma (NPC) is a malignant tumor with a poor prognosis. Studies have shown that esophageal carcinoma related gene 4 (ECRG4) is hypermethylated and significantly downregulated in NPC tissues. However, the role of ECRG4 in NPC, and in particular the underlying molecular mechanism, is largely unclear. In this study, using immunohistochemical staining of ECRG4 in NPC and normal specimens, we confirmed that ECRG4 was downregulated in human NPC tissues. In addition, various biological and molecular studies were carried out and the results showed that ECRG4 exerted anticancer effect in NPC, including inhibiting cell growth, migration, and invasion of NPC cells in vitro. Moreover, restoring ECRG4 expression suppressed the in vivo tumorigenesis of CNE2 cells. ECRG4 inhibited AKT/GSK3β/β-catenin signaling, as well as the downstream targets of β-catenin. LiCl treatment, which reduced GSK3β phosphorylation and upregulated β-catenin expression, restored the invasive ability of ECRG4-overexpressing NPC cells. Furthermore, we showed that the DNA methylation inhibitor 5-aza-dC reduced ECRG4 methylation and the invasive ability of negative control cells, but not that of ECRG4-overexpressing cells, suggesting that the inhibitory effect of 5-aza-dC depends on low expression of ECRG4. Collectively, our results demonstrated that ECRG4 downregulation contributed to NPC growth and invasion by activating AKT/GSK3β/β-catenin signaling pathway. ECRG4 could be a promising therapeutic target for the treatment of NPC. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10616-022-00520-8.
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Affiliation(s)
- Zhengyuan Yang
- Department of Medical Oncology, Cancer Hospital of Shantou University Medical College, No. 7 Raoping Road, Shantou, 515031 People’s Republic of China
| | - Xiajun Ye
- Department of Medical Affairs, Cancer Hospital of Shantou University Medical College, No. 7 Raoping Road, Shantou, 515031 People’s Republic of China
| | - Yujie Zhang
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology, No. 241 Daxue Road, Shantou, 515031 People’s Republic of China
| | - Yiteng Huang
- Health Care Center, The First Affiliated Hospital of Shantou University Medical College, No.57 Changping Road, Shantou, 515041 People’s Republic of China
| | - Jian Chen
- Department of Radiotherapy, Cancer Hospital of Shantou University Medical College, No. Raoping Road, Shantou, 515031 People’s Republic of China
| | - Yunzhu Zeng
- Department of Pathology, Cancer Hospital of Shantou University Medical College, No. 7 Raoping Road, Shantou, 515031 Guangdong Province People’s Republic of China
| | - Jiongyu Chen
- Oncological Research Lab, Cancer Hospital of Shantou University Medical College, No. 7 Raoping Road, Shantou, 515031 Guangdong Province People’s Republic of China
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5
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Chen J, Zhou Z, Lin X, Liao J, Zhang Y, Xie B, Huang Y, Peng L. Environmental Cadmium Exposure Promotes the Development, Progression and Chemoradioresistance of Esophageal Squamous Cell Carcinoma. Front Cell Dev Biol 2022; 10:792933. [PMID: 35252173 PMCID: PMC8894704 DOI: 10.3389/fcell.2022.792933] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 01/24/2022] [Indexed: 02/05/2023] Open
Abstract
Cadmium (Cd) exposure has been implicated in the etiology of esophageal squamous cell carcinoma (ESCC), albeit with inconsistent results from epidemiologic studies and without causal evidence. In this study, we explore the relationship of Cd exposure and the development, progression and therapeutic resistance of ESCC. A total of 150 ESCC patients and 177 matched controls from a coastal region with a high incidence of ESCC in China were included in the study. It was found that the median blood Cd level (BCL) was significantly higher in ESCC patients than that in the controls. Odds ratios for ESCC risk were 3.12 (95% CI 1.54-6.30) and 3.71 (95% CI 1.84-7.48) in the third and fourth quartiles of Cd distribution, respectively. Notably, BCL above 4.71 μg/L was strongly associated with shorter progression-free survival time compared to that below 1.60 μg/L (p < 0.001). The chronic Cd-treated ESCC cells (CCT-ESCC) CCT-EC109 and CCT-EC9706 exhibited increased cell proliferation and tumorigenesis, enhanced migration and invasion, and upregulated EMT biomarkers following 12 weeks of exposure to 5 μM cadmium chloride. Furthermore, Cd treatment attenuated the efficacy of 5-fluorouracil, cisplatin and irradiation treatment in CCT-ESCC cells both in vitro and in vivo. Moreover, we revealed that Cd stimulated the cancer cell stemness and Wnt/β-catenin signaling pathway in the CCT-ESCC cells. Additionally, 5-aza-2-deoxy-cytidine treatment resulted in suppression of the Wnt/β-catenin signaling pathway and rescue of the Cd-induced cell radioresistance. These results offer new insights into the role of environmental Cd exposure in the development, progression and chemoradioresistance of ESCC.
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Affiliation(s)
- Jiongyu Chen
- Central Laboratory, Cancer Hospital of Shantou University Medical College, Shantou, China
| | - Zhangzhu Zhou
- Central Laboratory, Cancer Hospital of Shantou University Medical College, Shantou, China
- Department of Laboratory, Jiangmen Central Hospital, Jiangmen, China
| | - Xueqiong Lin
- Department of Laboratory Medicine, Cancer Hospital of Shantou University Medical College, Shantou, China
| | - Jiahui Liao
- Central Laboratory, Cancer Hospital of Shantou University Medical College, Shantou, China
| | - Yujie Zhang
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology, Shantou, China
| | - Bingmeng Xie
- Central Laboratory, Cancer Hospital of Shantou University Medical College, Shantou, China
| | - Yiteng Huang
- Health Care Center, The First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Lin Peng
- Central Laboratory, Cancer Hospital of Shantou University Medical College, Shantou, China
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6
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Rezapour M, Rezapour HA, Chegeni M, Khanjani N. Exposure to cadmium and head and neck cancers: a meta-analysis of observational studies. REVIEWS ON ENVIRONMENTAL HEALTH 2021; 36:577-584. [PMID: 33544537 DOI: 10.1515/reveh-2020-0109] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 01/10/2021] [Indexed: 06/12/2023]
Abstract
Cadmium (Cd) is a widespread environmental pollutant. A number of observational studies have reported that Cd might be a cause of nasopharyngeal (NPC), pharyngeal (PC), or laryngeal cancers (LC). In this study evidence about the relation of Cd and NPC, PC, and LC has been summarized. A literature review was conducted until 20 June 2020 in PubMed, Ovid, Scopus, Web of Science and Google scholar databases to investigate the epidemiologic evidence for the relation between cadmium exposure and cancers of the nasopharynx, pharynx, and larynx. Ten articles were selected after careful screening of retrieved studies. All of these studies obtained a Newcastle-Ottawa Scale (NOS) quality score from 6 to 8. Due to high heterogeneity, in all analyses, random effect was used. The pooled results showed that cadmium levels in NPC (standard mean difference (SMD=0.55; 95% CI=0.20, 0.89; p=0.002) and PC (SMD=9.79; 95% CI=0.62, 18.96; p=0.036) patients/tissues were significantly higher than their controls. But cadmium levels were not significantly different between LC cases/tissues and their controls. (SMD=-0.05; 95% CI=-0.99, 0.89; p=0.921). Exposure to cadmium is likely to cause nasopharyngeal and pharyngeal cancer.
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Affiliation(s)
- Maysam Rezapour
- Amol Faculty of Paramedical Sciences, Mazandaran University of Medical Sciences, Sari, Iran
| | - Habib Allah Rezapour
- Mahmood Abad Health and Care Network, Mazandaran University of Medical Sciences, Sari, Iran
| | - Maryam Chegeni
- Department of Biostatistics and Epidemiology, School of Public Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Narges Khanjani
- Environmental Health Engineering Research Center & Department of Biostatistics and Epidemiology, School of Public Health, Kerman University of Medical Sciences, Kerman, 76169-13555, Iran
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7
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Dai SD, Wang S, Qin YN, Zhu JC. Multiomics Landscape Uncovers the Molecular Mechanism of the Malignant Evolution of Lung Adenocarcinoma Cells to Chronic Low Dose Cadmium Exposure. Front Oncol 2021; 11:654687. [PMID: 34858801 PMCID: PMC8631903 DOI: 10.3389/fonc.2021.654687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 10/26/2021] [Indexed: 11/23/2022] Open
Abstract
Cadmium (Cd) from cigarette smoke and polluted air can lead to lung adenocarcinoma after long-term inhalation. However, most studies are based on short-term exposure to this toxic metal at high concentrations. Here, we investigate the effects of long-term exposure of A549 cells (lung adenocarcinoma) to cadmium at low concentrations using morphological and multiomics analyses. First, we treated A549 cells continuously with CdCl2 at 1μM for 8 months and found that CdCl2 promoted cellular migration and invasion. After that, we applied transmission electron and fluorescence microscopies and did not observe significant morphological changes in Golgi apparatus, endoplasmic reticulum, lysosomes, or mitochondria on Cd treated cells; microfilaments, in contrast, accumulated in lamellipodium and adhesion plaques, which suggested that Cd enhanced cellular activity. Second, by using whole-exome sequencing (WES) we detected 4222 unique SNPs in Cd-treated cells, which included 382 unique non-synonymous mutation sites. The corresponding mutated genes, after GO and KEGG enrichments, were involved mainly in cell adhesion, movement, and metabolic pathways. Third, by RNA-seq analysis, we showed that 1250 genes (784 up and 466 down), 1623 mRNAs (1023 up and 591 down), and 679 lncRNAs (375 up and 304 down) were expressed differently. Furthermore, GO enrichment of these RNA-seq results suggested that most differentially expressed genes were related to cell adhesion and organization of the extracellular matrix in biological process terms; KEGG enrichment revealed that the differentially expressed genes took part in 26 pathways, among which the metabolic pathway was the most significant. These findings could be important for unveiling mechanisms of Cd-related cancers and for developing cancer therapies in the future.
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Affiliation(s)
- Shun-Dong Dai
- Department of Pathology, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Shuang Wang
- Department of Pathology, Shenyang Red Cross Hospital, Shenyang, China
| | - Ya-Nan Qin
- Department of Pathology, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Jin-Chao Zhu
- Department of Pathology, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
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8
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Luparello C. Cadmium-Associated Molecular Signatures in Cancer Cell Models. Cancers (Basel) 2021; 13:2823. [PMID: 34198869 PMCID: PMC8201045 DOI: 10.3390/cancers13112823] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/16/2021] [Accepted: 06/02/2021] [Indexed: 01/05/2023] Open
Abstract
The exposure of cancer cells to cadmium and its compounds is often associated with the development of more malignant phenotypes, thereby contributing to the acceleration of tumor progression. It is known that cadmium is a transcriptional regulator that induces molecular reprogramming, and therefore the study of differentially expressed genes has enabled the identification and classification of molecular signatures inherent in human neoplastic cells upon cadmium exposure as useful biomarkers that are potentially transferable to clinical research. This review recapitulates selected studies that report the detection of cadmium-associated signatures in breast, gastric, colon, liver, lung, and nasopharyngeal tumor cell models, as specifically demonstrated by individual gene or whole genome expression profiling. Where available, the molecular, biochemical, and/or physiological aspects associated with the targeted gene activation or silencing in the discussed cell models are also outlined.
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Affiliation(s)
- Claudio Luparello
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy
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9
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Yan R, Chen XL, Xu YM, Lau ATY. Epimutational effects of electronic cigarettes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:17044-17067. [PMID: 33655478 DOI: 10.1007/s11356-021-12985-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 02/11/2021] [Indexed: 02/06/2023]
Abstract
Electronic cigarettes (e-cigarettes), since they do not require tobacco combustion, have traditionally been considered less harmful than conventional cigarettes (c-cigarettes). In recent years, however, researchers have found many toxic compounds in the aerosols of e-cigarettes, and numerous studies have shown that e-cigarettes can adversely affect the human epigenome. In this review, we provide an update on recent findings regarding epigenetic outcomes of e-cigarette aerosols. Moreover, we discussed the effects of several typical e-cigarette ingredients (nicotine, tobacco-specific nitrosamines, volatile organic compounds, carbonyl compounds, and toxic metals) on DNA methylation, histone modifications, and noncoding RNA expression. These epigenetic effects could explain some of the diseases caused by e-cigarettes. It also reminds the public that like c-cigarettes, inhaling e-cigarette aerosols could also be accompanied with potential epigenotoxicity on the human body.
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Affiliation(s)
- Rui Yan
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China
- Clinical Research Center, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China
| | - Xu-Li Chen
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China
- Clinical Research Center, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China
| | - Yan-Ming Xu
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China.
- Clinical Research Center, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China.
| | - Andy T Y Lau
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China.
- Clinical Research Center, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China.
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10
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Saintilnord WN, Tenlep SYN, Preston JD, Duregon E, DeRouchey JE, Unrine JM, de Cabo R, Pearson KJ, Fondufe-Mittendorf YN. Chronic Exposure to Cadmium Induces Differential Methylation in Mice Spermatozoa. Toxicol Sci 2021; 180:262-276. [PMID: 33483743 PMCID: PMC8041459 DOI: 10.1093/toxsci/kfab002] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Cadmium exposure is ubiquitous and has been linked to diseases including cancers and reproductive defects. Since cadmium is nonmutagenic, it is thought to exert its gene dysregulatory effects through epigenetic reprogramming. Several studies have implicated germline exposure to cadmium in developmental reprogramming. However, most of these studies have focused on maternal exposure, while the impact on sperm fertility and disease susceptibility has received less attention. In this study, we used reduced representation bisulfite sequencing to comprehensively investigate the impact of chronic cadmium exposure on mouse spermatozoa DNA methylation. Adult male C57BL/J6 mice were provided water with or without cadmium chloride for 9 weeks. Sperm, testes, liver, and kidney tissues were collected at the end of the treatment period. Cadmium exposure was confirmed through gene expression analysis of metallothionein-1 and 2, 2 well-known cadmium-induced genes. Analysis of sperm DNA methylation changes revealed 1788 differentially methylated sites present at regulatory regions in sperm of mice exposed to cadmium compared with vehicle (control) mice. Furthermore, most of these differential methylation changes positively correlated with changes in gene expression at both the transcription initiation stage as well as the splicing levels. Interestingly, the genes targeted by cadmium exposure are involved in several critical developmental processes. Our results present a comprehensive analysis of the sperm methylome in response to chronic cadmium exposure. These data, therefore, highlight a foundational framework to study gene expression patterns that may affect fertility in the exposed individual as well as their offspring, through paternal inheritance.
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Affiliation(s)
- Wesley N Saintilnord
- Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, Kentucky 40536-0509, USA
| | - Sara Y N Tenlep
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky 40536-0509, USA
| | - Joshua D Preston
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky 40536-0509, USA,Emory University School of Medicine, Atlanta, Georgia 30322, USA
| | - Eleonora Duregon
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, Maryland 20892, USA
| | - Jason E DeRouchey
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40536-0509, USA
| | - Jason M Unrine
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, Kentucky 40536-0509, USA
| | - Rafael de Cabo
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, Maryland 20892, USA
| | - Kevin J Pearson
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky 40536-0509, USA,To whom correspondence should be addressed at Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY 40536-0509, USA. E-mail: ; Department of Molecular and Cellular Biochemistry, University of Kentucky, 800 Rose Street, 273 BBSRB, Lexington, KY 40536-0509, USA. E-mail:
| | - Yvonne N Fondufe-Mittendorf
- Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, Kentucky 40536-0509, USA,To whom correspondence should be addressed at Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY 40536-0509, USA. E-mail: ; Department of Molecular and Cellular Biochemistry, University of Kentucky, 800 Rose Street, 273 BBSRB, Lexington, KY 40536-0509, USA. E-mail:
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11
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Üstündağ ÜV, Emekli-Alturfan E. Wnt pathway: A mechanism worth considering in endocrine disrupting chemical action. Toxicol Ind Health 2020; 36:41-53. [DOI: 10.1177/0748233719898989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Endocrine disrupting chemicals (EDCs) are defined as exogenous substances that can alter the development and functioning of the endocrine system. The Wnt signaling pathway is an evolutionarily conserved pathway consisting of proteins that transmit cell-to-cell receptors through cell surface receptors, regulating important aspects of cell migration, polarity, neural formation, and organogenesis, which determines the fate of the cell during embryonic development. Although the effects of EDCs have been studied in terms of many molecular mechanisms; because of its critical role in embryogenesis, the Wnt pathway is of special interest in EDC exposure. This review provides information about the effects of EDC exposure on the Wnt/β-catenin pathway focusing on studies on bisphenol A, di-(2-ethylhexyl) phthalate, diethylstilbestrol, cadmium, and 2,3,7,8-tetrachlorodibenzo-p-dioxin.
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Affiliation(s)
- Ünsal Veli Üstündağ
- Department of Biochemistry, Faculty of Medicine, Istanbul Medipol University, Istanbul, Turkey
| | - Ebru Emekli-Alturfan
- Department of Biochemistry, Faculty of Dentistry, Marmara University, Istanbul, Turkey
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12
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The roles of TG-interacting factor in cadmium exposure-promoted invasion and migration of lung cancer cells. Toxicol In Vitro 2019; 61:104630. [DOI: 10.1016/j.tiv.2019.104630] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 08/09/2019] [Accepted: 08/18/2019] [Indexed: 12/24/2022]
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Hasan MN, Sabrin F, Rokeya B, Khan MSH, Ahmed MU, Matondo A, Billah MM, Akter S. Glucose and lipid lowering effects of Enhydra fluctuans extract in cadmium treated normal and type-2 diabetic model rats. Altern Ther Health Med 2019; 19:278. [PMID: 31640743 PMCID: PMC6805336 DOI: 10.1186/s12906-019-2667-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 08/30/2019] [Indexed: 12/28/2022]
Abstract
BACKGROUND Recent epidemiological and experimental studies suggest that cadmium and diabetes-related hyperglycemia may act synergistically to worsen metabolic regulation. The present study aims to evaluate the potential effects of Enhydra fluctuans extract in diabetes and dyslipidemia in cadmium (CdCl2) induced- normal and type 2 diabetic model rats. METHOD Forty-eight Long-Evans rats were divided equally into the following six groups: Normal Control (N-C), Normal treated with CdCl2 (N-Cd), Normal treated with plant extract (N-P), Normal treated with both plant extract and CdCl2 (N-PCd), Diabetic treated with plant extract (DM-P) and Diabetic treated with both plant extract and CdCl2 (DM-PCd). Blood glucose and other biochemical parameters were estimated by the enzymatic colorimetric method. Histological analysis of liver and heart was done by the hematoxylin-eosin (H & E) method. RESULTS Twenty-one days treatment of E. fluctuans extracts at a dose of 200 mg/kg significantly reduced blood glucose level in N-PCd and DM-PCd (p < 0.05), and DM-P (p < 0.01) group. The plant extract had no direct effects on total blood lipids but, it had beneficial effects on TG/HDL-C ratio in N-P and DM-PCd groups (p < 0.05). Cd induction significantly reduced body weight [(N-Cd, N-PCd, DM-PCd) (p < 0.01)], and induced liver [N-Cd (p < 0.05), N-PCd, p < 0.001] and renal impairment [N-Cd (p < 0.05)]. In bi-variate association, a significant positive correlation between serum glucose and SGPT (p < 0.05) as well as SGPT and TG/HDL ratio (p = 0.019) was found in DM-P and in the merged group. The histology of liver and heart showed severe damages including inflammation, nuclear pyknosis, loss of myocardial fibers, necrosis and fibrosis in the Cd treated groups compared to plant treated groups. CONCLUSION E. fluctuans seems to have potent antihyperglycemic effects in diabetes and Cd toxicity along with partial antidyslipidemic properties in euglycemic and diabetic rats. Our study suggests a novel oral antihyperglycemic agent in the present environmental context.
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Tanwar VS, Zhang X, Jagannathan L, Jose CC, Cuddapah S. Cadmium exposure upregulates SNAIL through miR-30 repression in human lung epithelial cells. Toxicol Appl Pharmacol 2019; 373:1-9. [PMID: 30998937 PMCID: PMC6547378 DOI: 10.1016/j.taap.2019.04.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 04/10/2019] [Accepted: 04/13/2019] [Indexed: 12/25/2022]
Abstract
Cadmium (Cd) is a known human lung carcinogen. In addition, Cd exposure is associated with several lung diseases including emphysema, chronic obstructive pulmonary disease (COPD), asthma and fibrosis. Although earlier studies have identified several processes dysregulated by Cd exposure, the underlying mechanisms remain unclear. Here, we examined the transcriptome of lung epithelial cells exposed to Cd to understand the molecular basis of Cd-induced diseases. Computational analysis of the transcriptome predicted a significant number of Cd-upregulated genes to be targets of miR-30 family miRNAs. Experimental validation showed downregulation of all the miR-30 family members in Cd exposed cells. We found SNAIL, an EMT master regulator, to be the most upregulated among the miR-30 targets. Furthermore, we found decrease in the levels of epithelial marker E- cadherin (CDH1) and increase in the levels of mesenchymal markers, ZEB1 and vimentin. This suggested induction of EMT in Cd exposed cells. Luciferase reporter assays showed that miR-30 repressed SNAIL by directly targeting its 3' UTR. Over expression of miR-30e and transfection of miR-30e mimics reduced Cd-induced SNAIL upregulation. Our results suggest that miR-30 negatively regulates SNAIL in lung epithelial cells and that Cd-induced downregulation of miR-30 relieves this repression, resulting in SNAIL upregulation and EMT induction. EMT plays a major role in many diseases associated with Cd exposure including fibrosis, COPD, and cancer and metastasis. Therefore, our identification of miR-30 downregulation in Cd exposed cells and the consequent activation of SNAIL provides important mechanistic insights into lung diseases associated with Cd exposure.
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Affiliation(s)
- Vinay Singh Tanwar
- Department of Environmental Medicine, New York University School of Medicine, New York, NY 10010, USA
| | - Xiaoru Zhang
- Department of Environmental Medicine, New York University School of Medicine, New York, NY 10010, USA
| | - Lakshmanan Jagannathan
- Department of Environmental Medicine, New York University School of Medicine, New York, NY 10010, USA
| | - Cynthia C Jose
- Department of Environmental Medicine, New York University School of Medicine, New York, NY 10010, USA
| | - Suresh Cuddapah
- Department of Environmental Medicine, New York University School of Medicine, New York, NY 10010, USA.
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