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Wu H, Tang H, Zou X, Huang Q, Wang S, Sun M, Ye Z, Wang H, Wu Y, Sun L, Chen Y, Tang H. Role of the PARP1/NF-κB Pathway in DNA Damage and Apoptosis of TK6 Cells Induced by Hydroquinone. Chem Res Toxicol 2024; 37:1187-1198. [PMID: 38837948 DOI: 10.1021/acs.chemrestox.4c00135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
Hydroquinone(HQ) is a widely used industrial raw material and is a topical lightening product found in over-the-counter products. However, inappropriate exposure to HQ can pose certain health hazards. This study aims to explore the mechanisms of DNA damage and cell apoptosis caused by HQ, with a focus on whether HQ activates the nuclear factor-κB (NF-κB) pathway to participate in this process and to investigate the correlation between the NF-κB pathway activation and poly(ADP-ribose) polymerase 1(PARP1). Through various experimental techniques, such as DNA damage detection, cell apoptosis assessment, cell survival rate analysis, immunofluorescence, and nuclear-cytoplasmic separation, the cytotoxic effects of HQ were verified, and the activation of the NF-κB pathway was observed. Simultaneously, the relationship between the NF-κB pathway and PARP1 was verified by shRNA interference experiments. The results showed that HQ could significantly activate the NF-κB pathway, leading to a decreased cell survival rate, increased DNA damage, and cell apoptosis. Inhibiting the NF-κB pathway could significantly reduce HQ-induced DNA damage and cell apoptosis and restore cell proliferation and survival rate. shRNA interference experiments further indicated that the activation of the NF-κB pathway was regulated by PARP1. This study confirmed the important role of the NF-κB pathway in HQ-induced DNA damage and cell apoptosis and revealed that the activation of the NF-κB pathway was mediated by PARP1. This research provides important clues for a deeper understanding of the toxic mechanism of HQ.
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Affiliation(s)
- Haipeng Wu
- Guangdong Medical University, Dongguan 523808, China
| | - Huan Tang
- Guangdong Medical University, Dongguan 523808, China
| | - Xiangli Zou
- Guangdong Medical University, Dongguan 523808, China
| | - Qihao Huang
- Guangdong Medical University, Dongguan 523808, China
| | - Shimei Wang
- Guangdong Medical University, Dongguan 523808, China
| | - Mingzhu Sun
- Guangdong Medical University, Dongguan 523808, China
| | - Zhongming Ye
- Guangdong Medical University, Dongguan 523808, China
| | - Huanhuan Wang
- Guangdong Medical University, Dongguan 523808, China
| | - Yao Wu
- Guangdong Medical University, Dongguan 523808, China
| | - Lei Sun
- Guangdong Medical University, Dongguan 523808, China
| | - Yuting Chen
- Dongguan Key Laboratory of Environmental Medicine, The First Dongguan Affiliated Hospital, School of Public Health, Guangdong Medical University, Dongguan 523808, China
| | - Huanwen Tang
- Dongguan Key Laboratory of Environmental Medicine, The First Dongguan Affiliated Hospital, School of Public Health, Guangdong Medical University, Dongguan 523808, China
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Liu Y, Zeng M, Li Z, Lin C, Bao J, Ding W, Wang S, Fan Q, Sun Q, Luo H, Huang J, Chen S, Tang H. Linc01588 deletion inhibits the malignant biological characteristics of hydroquinone-induced leukemic cells via miR-9-5p/SIRT1. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 276:116295. [PMID: 38581908 DOI: 10.1016/j.ecoenv.2024.116295] [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: 12/25/2023] [Revised: 03/16/2024] [Accepted: 04/01/2024] [Indexed: 04/08/2024]
Abstract
Leukemia caused by environmental chemical pollutants has attracted great attention, the malignant leukemic transformation model of TK6 cells induced by hydroquinone (HQ) has been previously found in our team. However, the type of leukemia corresponding to this malignant transformed cell line model needs further study and interpretation. Furthermore, the molecular mechanism of malignant proliferation of leukemic cells induced by HQ remains unclear. This study is the first to reveal the expression of aberrant genes in leukemic cells of HQ-induced malignant transformation, which may correspond to chronic lymphocytic leukemia (CLL). The expression of Linc01588, a long non-coding RNA (lncRNA), was significantly up-regulated in CLL patients and leukemic cell line model which previously described. After gain-of-function assays and loss-of-function assays, feeble cell viability, severe apoptotic phenotype and the increased secretion of TNF-α were easily observed in malignant leukemic TK6 cells with Linc01588 deletion after HQ intervention. The tumors derived from malignant TK6 cells with Linc01588 deletion inoculated subcutaneously in nude mice were smaller than controls. In CLL and its cell line model, the expression of Linc01588 and miR-9-5p, miR-9-5p and SIRT1 were negative correlation respectively in CLL and cell line model, while the expression of Linc01588 and SIRT1 were positive correlation. The dual-luciferase reporter assay showed that Linc01588 & miR-9-5p, miR-9-5p & SIRT1 could bind directly, respectively. Furthermore, knockdown of miR-9-5p successfully rescued the severe apoptotic phenotype and the increased secretion of TNF-α caused by the Linc01588 deletion, the deletion of Linc01588 in human CLL cell line MEC-2 could also inhibit malignant biological characteristics, and the phenotype caused by the deletion of Linc01588 could also be rescued after overexpression of SIRT1. Moreover, the regulation of SIRT1 expression in HQ19 cells by Linc01588 and miR-9-5 P may be related to the Akt/NF-κB pathway. In brief, Linc01588 deletion inhibits the malignant biological characteristics of HQ-induced leukemic cells via miR-9-5p/SIRT1, and it is a novel and hopeful clue for the clinical targeted therapy of CLL.
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Affiliation(s)
- Yanquan Liu
- Department of Hematology, The First Dongguan Affiliated Hospital of Guangdong Medical University, Dongguan 523808, China; School of Public Health, Guangdong Medical University, Dongguan 523808, China; Dongguan Key Laboratory of Environmental Medicine, Dongguan 523808, China
| | - Minjuan Zeng
- School of Basic Medicine, Guangdong Medical University, Dongguan Key Laboratory for Development and Application of Experimental Animal Resources in Biomedical Industry, Dongguan 523808, China
| | - Zhengzhen Li
- School of Public Health, Guangdong Medical University, Dongguan 523808, China; Dongguan Key Laboratory of Environmental Medicine, Dongguan 523808, China
| | - Caixiong Lin
- School of Public Health, Guangdong Medical University, Dongguan 523808, China; Dongguan Key Laboratory of Environmental Medicine, Dongguan 523808, China
| | - Jie Bao
- Department of Clinical Laboratory, The Affiliated Hospital of Guangdong Medical University, Zhanjiang 524002, China
| | - Weihua Ding
- Central People's Hospital of Zhanjiang, Zhanjiang 524033, China
| | - Shimei Wang
- School of Public Health, Guangdong Medical University, Dongguan 523808, China; Dongguan Key Laboratory of Environmental Medicine, Dongguan 523808, China
| | - Qin Fan
- School of Public Health, Guangdong Medical University, Dongguan 523808, China; Dongguan Key Laboratory of Environmental Medicine, Dongguan 523808, China
| | - Qian Sun
- School of Public Health, Guangdong Medical University, Dongguan 523808, China; Dongguan Key Laboratory of Environmental Medicine, Dongguan 523808, China
| | - Hao Luo
- School of Public Health, Guangdong Medical University, Dongguan 523808, China; Dongguan Key Laboratory of Environmental Medicine, Dongguan 523808, China
| | - Jinqi Huang
- Department of Hematology, Guangzhou First People's Hospital, South China University of Technology, Guangzhou 510180, China
| | | | - Huanwen Tang
- Department of Hematology, The First Dongguan Affiliated Hospital of Guangdong Medical University, Dongguan 523808, China; School of Public Health, Guangdong Medical University, Dongguan 523808, China; Dongguan Key Laboratory of Environmental Medicine, Dongguan 523808, China.
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3
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Chen Y, Chen L, Zhu S, Yang H, Ye Z, Wang H, Wu H, Wu Y, Sun Q, Liu X, Liang H, Tang H. Exosomal derived miR-1246 from hydroquinone-transformed cells drives S phase accumulation arrest by targeting cyclin G2 in TK6 cells. Chem Biol Interact 2024; 387:110809. [PMID: 38006958 DOI: 10.1016/j.cbi.2023.110809] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 11/07/2023] [Accepted: 11/15/2023] [Indexed: 11/27/2023]
Abstract
BACKGROUND Hydroquinone (HQ), a major metabolite of benzene and known hematotoxic carcinogen. MicroRNA 1246 (miR-1246), an oncogene, regulates target genes in carcinogenesis including leukemia. This study investigates the impact of exosomal derived miR-1246 from HQ-transformed (HQ19) cells on cell-to-cell communication in recipient TK6 cells. METHODS RNA sequencing was used to identify differentially expressed exosomal miRNAs in HQ19 cells and its phosphate buffered solution control cells (PBS19), which were then confirmed using qRT-PCR. The impact of exosomal miR-1246 derived from HQ-transformed cells on cell cycle distribution was investigated in recipient TK6 cells. RESULTS RNA sequencing analysis revealed that 34 exosomal miRNAs were upregulated and 158 miRNAs were downregulated in HQ19 cells compared with PBS19 cells. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses predicted that their targets are enriched in cancer development-related pathways, such as MAPK signaling, microRNAs in cancer, apoptosis, PI3K-Akt signaling, cell cycle, Ras signaling, and Chronic myeloid leukemia. Eleven miRNAs were confirmed to have differential expression through qRT-PCR, with 6 upregulated (miR-140-3p, miR-551b-3p, miR-7-5p, miR-1290, miR-92a-3p, and miR-1246) and 5 downregulated (miR-183-5p, miR-26a-5p, miR-30c-5p, miR-205-5p, and miR-99b-3p). Among these, miR-1246 exhibited the highest expression level. HQ exposure resulted in a concentration-dependent increase in miR-1246 levels and decrease Cyclin G2 (CCNG2) levels in TK6 cells. Similarly, exosomes from HQ19 exhibited similar effects as HQ exposure. Dual luciferase reporter gene assays indicated that miR-1246 could band to CCNG2. After HQ exposure, exosomal miR-1246 induced cell cycle arrest at the S phase, elevating the expression of genes like pRb, E2F1, and Cyclin D1 associated with S phase checkpoint. However, silencing miR-1246 caused G2/M-phase arrest. CONCLUSION HQ-transformed cells' exosomal miR-1246 targets CCNG2, regulating TK6 cell cycle arrest, highlighting its potential as a biomarker for HQ-induced malignant transformation.
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Affiliation(s)
- Yuting Chen
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523808, China; Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Lin Chen
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523808, China; Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Shiheng Zhu
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523808, China; Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Hui Yang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Zhongming Ye
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Huanhuan Wang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Haipeng Wu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Yao Wu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Qian Sun
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Xiaoshan Liu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Hairong Liang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Huanwen Tang
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523808, China; Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China.
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4
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Zhai L, Gao Y, Cui Z, Chen L, Yu L, Guo P, Zhu D, Tang H, Liu X, Luo H. MiR-7-5p targeted Rb regulating cell cycle is involved in hydroquinone-induced malignant progression in human lymphoblastoid TK6 cells. Food Chem Toxicol 2023; 182:114186. [PMID: 37951342 DOI: 10.1016/j.fct.2023.114186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/25/2023] [Accepted: 11/06/2023] [Indexed: 11/13/2023]
Abstract
MiR-7-5p has been demonstrated to inhibit tumorigenesis by limiting tumor cell proliferation, migration and invasion. However, its role in countering hydroquinone (HQ)-induced malignant phenotype of TK6 cells has remained unclear. The present study aimed to investigate whether miR-7-5p overexpression could restrain the malignant phenotype in TK6 cells exposed to HQ. The results displayed that HQ suppressed the expression of miR-7-5p and promoted cell cycle progression. Further investigations confirmed that miR-7-5p could decelerate the cell cycle progression by targeting Rb after acute HQ exposure. Through the regulation of the Rb/E2F1 signaling pathway, the overexpression of miR-7-5p mitigated HQ-induced malignant phenotype in TK6 cells by impeding cell cycle progression. In conclusion, miR-7-5p overexpression appears to be involved in HQ-induced malignant transformation by suppressing Rb/E2F1 signaling pathway, resulting in a deceleration of the cell cycle progression.
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Affiliation(s)
- Lu Zhai
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Yuting Gao
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Zheming Cui
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Lin Chen
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Lingxue Yu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Pu Guo
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Delong Zhu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Huanwen Tang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China; The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
| | - Xin Liu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China.
| | - Hao Luo
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China.
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5
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Yu L, Qiu W, Gao Y, Sun M, Chen L, Cui Z, Zhu D, Guo P, Tang H, Luo H. JNK1 activated pRb/E2F1 and inhibited p53/p21 signaling pathway is involved in hydroquinone-induced pathway malignant transformation of TK6 cells by accelerating the cell cycle progression. ENVIRONMENTAL TOXICOLOGY 2023; 38:2344-2351. [PMID: 37347496 DOI: 10.1002/tox.23870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/05/2023] [Indexed: 06/23/2023]
Abstract
Hydroquinone (HQ) is an important metabolites of benzene in the body, and it has been found to result in cellular DNA damage, mutation, cell cycle imbalance, and malignant transformation. The JNK1 signaling pathway plays an important role in DNA damage repair. In this study, we focused on whether the JNK1 signaling pathway is involved in the HQ-induced cell cycle abnormalities and the underlying mechanism. The results showed that HQ induced abnormal progression of the cell cycle and initiated the JNK1 signaling pathway. We further confirmed that JNK1 suppression decelerated the cell cycle progression through inhibiting pRb/E2F1 signaling pathway and triggering p53/p21 pathway. Therefore, we concluded that JNK1 might be involved in HQ-induced malignant transformation associated with activating pRb/E2F1 and inhibiting p53/p21 signaling pathway which resulting in accelerating the cell cycle progression.
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Affiliation(s)
- Lingxue Yu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Weifeng Qiu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Yuting Gao
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Mingwei Sun
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
- Faculty of Medicine, Macau University of Science and Technology, Macao, China
| | - Lin Chen
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Zheming Cui
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Delong Zhu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Pu Guo
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Huanwen Tang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
| | - Hao Luo
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
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6
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Xuan M, Wu Y, Wang H, Ye Z, Wu H, Chen Y, Yang H, Tang H. Effect of mir-92a-3p on hydroquinone induced changes in human lymphoblastoid cell cycle and apoptosis. ENVIRONMENTAL TOXICOLOGY 2023; 38:1420-1430. [PMID: 36988267 DOI: 10.1002/tox.23775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/04/2023] [Accepted: 02/25/2023] [Indexed: 05/18/2023]
Abstract
Hydroquinone (HQ), one of the metabolites of benzene in humans, has significant hepatotoxic properties. Chronic exposure to HQ can lead to leukemia. In a previous study by this group, we constructed a model of malignant transformation of human lymphoblastoid cells (TK6) induced by chronic exposure to HQ with significant subcutaneous tumorigenic capacity in nude mice. miR-92a-3p is a tumor factor whose role in HQ-induced malignant transformation is not yet clear. In the present study, raw signal analysis and dual-luciferase reporter gene results suggested that miR-92a-3p could target and regulate TOB1, and the expression level of miR-92a-3p was significantly upregulated in the long-term HQ-induced TK6 malignant transformation model, while the anti-proliferative factor TOB1 was significantly downregulated. To investigate the mechanism behind this, we inhibited miR-92a-3p in a malignant transformation model and found a decrease in cell viability, a decrease in MMP-9 protein levels, a G2/M phase block in the cell cycle, and an upregulation of the expression of G2/M phase-related proteins cyclinB1 and CDK1. Inhibition of miR-92a-3p in combination with si-TOB1 restored cell viability, inhibited cyclin B1 and CDK1 protein levels, and attenuated the G2/M phase block. Taken together, miR-92a-3p reduced the cell proliferation rate of HQ19 and caused cell cycle arrest by targeting TOB1, which in turn contributed to the altered malignant phenotype of the cells. This study suggests that miR-92a-3p is likely to be a biomarker for long-term HQ-induced malignant transformation of TK6 and could be a potential therapeutic target for leukemia caused by long-term exposure to HQ.
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Affiliation(s)
- Mei Xuan
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523808, China
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Yao Wu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Huanhuan Wang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Zhongming Ye
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Haipeng Wu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Yuting Chen
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Hui Yang
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523808, China
| | - Huanwen Tang
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523808, China
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
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7
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Yang H, Chen Y, Zeng M, Wu H, Zou X, Fang T, Zhai L, Liang H, Luo H, Tian G, Liu Q, Tang H. Long non-coding RNA LINC01480 is activated by Foxo3a and promotes hydroquinone-induced TK6 cell apoptosis by inhibiting the PI3K/AKT pathway. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 255:114786. [PMID: 36934544 DOI: 10.1016/j.ecoenv.2023.114786] [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: 10/19/2022] [Revised: 03/04/2023] [Accepted: 03/13/2023] [Indexed: 06/18/2023]
Abstract
Long non-coding RNAs (lncRNAs) have been shown to play a critical role in the damage caused to the body by environmental exogenous chemicals; however, few studies have explored their effects during exposure to benzene and its metabolite, hydroquinone (HQ). An emerging lncRNA, LINC01480, was found to be associated with the immune microenvironment of some cancers, but its specific function remains unknown. Therefore, this study aimed to investigate the role of LINC01480 in HQ-induced apoptosis. The biological function of LINC01480 was investigated through gain-of-function and loss-of-function experiments. Mechanically, nuclear-cytoplasmic fractionation experiment, chromatin immunoprecipitation (ChIP), dual-luciferase reporter assay, and rescue experiments were performed. In this study, when TK6 cells were treated with HQ (0, 5, 10, and 20 μM) for 12, 24, 48, and 72 h, the expression of LINC01480 was increased in a dose-dependent manner. Meanwhile, the phosphorylation levels of PI3K and AKT decreased, and apoptosis increased. As compared to the control group, HQ-induced apoptosis was significantly reduced, and the relative survival rate of TK6 cells increased after silencing LINC01480, while overexpression of LINC01480 further sensitized TK6 cells to HQ-induced apoptotic cell death. LINC01480 negatively regulated the PI3K/AKT pathway in TK6 cells, and the apoptosis-inhibiting effect of LINC01480 silencing was reversed after inhibition of the PI3K/AKT pathway. In addition, ChIP and the dual-luciferase reporter assays showed that the transcription factor Foxo3a promoted LINC01480 transcription by directly binding to the promoter regions - 149 to - 138 of LINC01480. Moreover, short-term HQ exposure promoted the expression of Foxo3a. From these findings, we can conclude that LINC01480 is activated by Foxo3a, and promotes HQ-induced apoptosis by inhibiting the PI3K/AKT pathway, suggesting that LINC01480 might become a possible target for therapeutic intervention of HQ-induced toxicity.
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Affiliation(s)
- Hui Yang
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan 523808, Guangdong, China; Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, Guangdong, China
| | - Yuting Chen
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan 523808, Guangdong, China; Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, Guangdong, China
| | - Minjuan Zeng
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, Guangdong, China
| | - Haipeng Wu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, Guangdong, China
| | - Xiangli Zou
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, Guangdong, China
| | - Tiantian Fang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, Guangdong, China
| | - Lu Zhai
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, Guangdong, China
| | - Hairong Liang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, Guangdong, China
| | - Hao Luo
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, Guangdong, China
| | - Gaiqin Tian
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, Guangdong, China
| | - Qizhan Liu
- Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Huanwen Tang
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan 523808, Guangdong, China; Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, Guangdong, China.
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8
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Chen Y, Yang H, Chen S, Lu Z, Li B, Jiang T, Xuan M, Ye R, Liang H, Liu X, Liu Q, Tang H. SIRT1 regulated hexokinase-2 promoting glycolysis is involved in hydroquinone-enhanced malignant progression in human lymphoblastoid TK6 cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 241:113757. [PMID: 35714482 DOI: 10.1016/j.ecoenv.2022.113757] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 06/03/2022] [Accepted: 06/06/2022] [Indexed: 06/15/2023]
Abstract
Reprogramming of cellular metabolism is a vital event during tumorigenesis. The role of glycolysis in malignant progression promoted by hydroquinone (HQ), one of the metabolic products of benzene, remains to be understood. Recently, we reported the overexpression of sirtuin 1 (SIRT1) in HQ-enhanced malignant progression of TK6 cells and hypothesized that SIRT1 might contribute to glycolysis and favor tumorigenesis. Our data showed that acute exposure of TK6 cells to HQ for 48 h inhibited glycolysis, as indicated by reduction in glucose consumption, lactate production, hexokinase activity, and the expression of SIRT1 and glycolytic enzymes, including HIF-1α, hexokinase-2 (HK-2), ENO-1, glucose transporter 1 (Glut-1), and lactic dehydrogenase A (LDHA). Knockdown of SIRT1 or inhibition of glycolysis using the glycolytic inhibitor 2-deoxy-D-glucose (2-DG) downregulated the levels of SIRT1 and glycolytic enzymes and significantly enhanced HQ-induced cell apoptosis, although knockdown of SIRT1 or 2-DG alone had little effect on apoptosis. Furthermore, immunofluorescence and Co-IP assays demonstrated that SIRT1 regulated the expression of HK-2, and HQ treatment caused a decrease in SIRT1 and HK-2 binding to mitochondria. Importantly, we found that glycolysis was promoted with increasing HQ treatment weeks. Long-term HQ exposure increased the expression of SIRT1 and several glycolytic enzymes and promoted malignant cell progression. Moreover, compared with the PBS group, glucose consumption and lactate production increased after 10 weeks of HQ exposure, and the protein levels of SIRT1 and HK-2 were increased after 15 weeks of HQ exposure, while those of Glut-1, ENO-1, and LDHA were elevated. In addition, SIRT1 knockdown HQ 19 cells exhibited decreased lactate production, glucose consumption, glycolytic enzymes expression, cell growth, and tumor formation in nude mice. Our findings identify the high expression of SIRT1 as a strong oncogenic driver that positively regulates HK-2 and promotes glycolysis in HQ-accelerated malignant progression of TK6 cells.
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Affiliation(s)
- Yuting Chen
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Hui Yang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Shaoyun Chen
- Department of Obstetrics, Shenzhen Baoan Women's and Children's Hospital, Jinan University, Shenzhen 518102, China
| | - Zhaohong Lu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Boxin Li
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Tikeng Jiang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Mei Xuan
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Ruifang Ye
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Hairong Liang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Xiaoshan Liu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Qizhan Liu
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Huanwen Tang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China.
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9
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Luo H, Zhai L, Qiu W, Liang H, Yu L, Li Y, Xiong M, Guo J, Tang H. p16 loss facilitate hydroquinone-induced malignant transformation of TK6 cells through promoting cell proliferation and accelerating the cell cycle progression. ENVIRONMENTAL TOXICOLOGY 2021; 36:1591-1599. [PMID: 33932074 DOI: 10.1002/tox.23155] [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: 03/10/2021] [Accepted: 04/17/2021] [Indexed: 06/12/2023]
Abstract
The p16INK4A is a multifunction gene that includes regulation of the cell cycle, apoptosis, senescence and tumor development. However, the effects of p16 in hydroquinone-induced malignant transformation of TK6 cells remain unclear. The present study aimed to explore whether p16 loss facilitate malignant transformation in TK6 cells. The results demonstrated that p16/Rb signal pathway was suppressed in hydroquinone-induced malignant transformation of TK6 cells. We further confirmed that p16 loss stimulated cell proliferation, and accelerated cell cycle progression in vitro and in vivo. The immunoblotting analysis indicated that p16 regulated cell cycle progression via Rb and p53. Therefore, we conclude that p16 is involved in HQ-induced malignant transformation associated with suppressing Rb and p53 which resulting in accelerating the cell cycle progression.
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Affiliation(s)
- Hao Luo
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Lu Zhai
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Weifeng Qiu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Hairong Liang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Lei Yu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Yuan Li
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Mengyun Xiong
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Jiaying Guo
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Huanwen Tang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
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10
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Zhai L, Liang H, Du J, Sun M, Qiu W, Tang H, Luo H. PARP-1 via regulation of p53 and p16, is involved in the hydroquinone-induced malignant transformation of TK6 cells by decelerating the cell cycle. Toxicol In Vitro 2021; 74:105153. [PMID: 33771647 DOI: 10.1016/j.tiv.2021.105153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/23/2021] [Accepted: 03/22/2021] [Indexed: 12/24/2022]
Abstract
Poly(ADP-ribose)polymerase-1 (PARP-1) plays a crucial role in DNA damage repair and could be viewed as both a tumor promoter and tumor-suppressor gene. However, the effects of PARP-1 in hydroquinone-induced malignant transformation of TK6 cells remain to be further elucidated. The present research evaluated the potential mechanism of PARP-1 in hydroquinone-induced malignant transformation of TK6 cells. The results indicated that high PARP-1 inhibited TK6 cells malignant transformation after chronic exposure to HQ. We further confirmed that PARP-1 overexpression blocked cell proliferation, and decelerated cell cycle progression in vitro and in vivo. The immunoblotting analysis indicated that PARP-1 regulated cell cycle progression via p16/Rb and p53. Therefore, we conclude that PARP-1 is involved in HQ-induced malignant transformation associated with increasing p16/Rb and p53 which resulting in decelerating the cell cycle progression.
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Affiliation(s)
- Lu Zhai
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Hairong Liang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Jinlin Du
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Mingwei Sun
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Weifeng Qiu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Huanwen Tang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China.
| | - Hao Luo
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China.
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11
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Zeng M, Chen S, Zhang K, Liang H, Bao J, Chen Y, Zhu S, Jiang W, Yang H, Wei Y, Guo L, Tang H. Epigenetic changes involved in hydroquinone-induced mutations. TOXIN REV 2020. [DOI: 10.1080/15569543.2020.1744660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Minjuan Zeng
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
- Laboratory Animal Center, Guangdong Medical University, Zhanjiang, China
| | | | - Ke Zhang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Hairong Liang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Jie Bao
- Department of Clinical Laboratory, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Yuting Chen
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Shiheng Zhu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Wei Jiang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Hui Yang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Yixian Wei
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Lihao Guo
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Huanwen Tang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
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12
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SIRT1 promotes proliferation, migration, and invasion of breast cancer cell line MCF-7 by upregulating DNA polymerase delta1 (POLD1). Biochem Biophys Res Commun 2018; 502:351-357. [DOI: 10.1016/j.bbrc.2018.05.164] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 05/24/2018] [Indexed: 11/19/2022]
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13
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Luo H, Liang H, Chen Y, Chen S, Xu Y, Xu L, Liu J, Zhou K, Peng J, Guo G, Lai B, Song L, Yang H, Liu L, Peng J, Liu Z, Tang L, Chen W, Tang H. miR-7-5p overexpression suppresses cell proliferation and promotes apoptosis through inhibiting the ability of DNA damage repair of PARP-1 and BRCA1 in TK6 cells exposed to hydroquinone. Chem Biol Interact 2018; 283:84-90. [PMID: 29421518 DOI: 10.1016/j.cbi.2018.01.019] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 12/19/2017] [Accepted: 01/22/2018] [Indexed: 02/05/2023]
Abstract
Hydroquinone (HQ), one of the major metabolic products of benzene, is a carcinogen, which induces apoptosis and inhibit proliferation in lymphoma cells. microRNA-7-5p (miR-7-5p), a tumor suppressor, participates in various biological processes including cell proliferation and apoptosis regulation by repressing expression of specific oncogenic target genes. To explore whether miR-7-5p is involved in HQ-induced cell proliferation and apoptosis, we assessed the effect of miR-7-5p overexpression on induction of apoptosis analyzed by FACSCalibur flow cytometer in transfection of TK6 cells with miR-7-5p mimic (TK6- miR-7-5p). We observed an increased apoptosis by 25.43% and decreased proliferation by 28.30% in TK6-miR-7-5p cells compared to those negative control cells (TK6-shNC) in response to HQ treatment. Furthermore, HQ might active the apoptotic pathway via partly downregulation the expression of BRCA1 and PARP-1, followed by p53 activation, in TK6-miR-7-5p cells. In contrast, attenuated p53 and BRCA1 expression was observed in shPARP-1 cells than in NC cells after HQ treatment. Therefore, we conclude that HQ may activate apoptotic signals via inhibiting the tumor suppressive effects of miR-7-5p, which may be mediated partly by upregulating the expression of PARP-1 and BRCA1 in control cells. The increase of miR-7-5p expression further intensified downregulation of PARP-1 and BRCA1 in TK6-miR-7-5p cells, resulting in an increase of apoptosis and proliferation inhibited.
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Affiliation(s)
- Hao Luo
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Hairong Liang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Yuting Chen
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Shaoyun Chen
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Yongchun Xu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Longmei Xu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Jiaxian Liu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Kairu Zhou
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Jucheng Peng
- Xixiang Prevention and Health Care of Baoan, Shenzhen, China
| | - Guoqiang Guo
- Xixiang Prevention and Health Care of Baoan, Shenzhen, China
| | - Bei Lai
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Li Song
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Hui Yang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Linhua Liu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Jianming Peng
- Huizhou Prevention and Treatment Centre for Occupational Disease, Huizhou, China
| | - Zhidong Liu
- Huizhou Prevention and Treatment Centre for Occupational Disease, Huizhou, China
| | - Lin Tang
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Wen Chen
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Huanwen Tang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China.
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14
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Chen Y, Chen S, Liang H, Yang H, Liu L, Zhou K, Xu L, Liu J, Yun L, Lai B, Song L, Luo H, Peng J, Liu Z, Xiao Y, Chen W, Tang H. Bcl-2 protects TK6 cells against hydroquinone-induced apoptosis through PARP-1 cytoplasm translocation and stabilizing mitochondrial membrane potential. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2018; 59:49-59. [PMID: 28843007 DOI: 10.1002/em.22126] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 07/25/2017] [Accepted: 07/26/2017] [Indexed: 06/07/2023]
Abstract
B cell leukemia/lymphoma-2 (Bcl-2) suppresses apoptosis by binding the BH3 domain of proapoptotic factors and thereby regulating mitochondrial membrane potential (MMP). This study aimed to investigate the role of Bcl-2 in controlling the mitochondrial pathway of apoptosis during hydroquinone (HQ)-induced TK6 cytotoxicity. In this study, HQ, one metabolite of benzene, decreased the MMP in a concentration-dependent manner and induced the generation of reactive oxygen species (ROS), the activation of the DNA damage marker γ-H2AX, and production of the DNA damage-responsive enzyme poly(ADP-ribose)polymerase-1 (PARP-1). Exposure of TK6 cells to HQ leads to an increase in Bcl-2 and co-localization with PARP-1 in the cytoplasm. Inhibition of Bcl-2 using the BH3 mimetic, ABT-737, suppressed the PARP-1 nuclear to cytoplasm translocation and sensitized TK6 cells to HQ-induced apoptosis through depolarization of the MMP. Western blot analysis indicated that ABT-737 combined with HQ increased the levels of cleaved PARP and γ-H2AX, but significantly decreased the level of P53. Thus, ABT-737 can influence PARP-1 translocation and induce apoptosis via mitochondria-mediated apoptotic pathway, independently of P53. In addition, we found that knockdown of PARP-1 attenuated the HQ-induced production of cleaved PARP and P53. These results identify Bcl-2 as a protective mediator of HQ-induced apoptosis and show that upregulation of Bcl-2 helps to localize PARP-1 to the cytoplasm and stabilize MMP. Environ. Mol. Mutagen. 59:49-59, 2018. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Yuting Chen
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Shaoyun Chen
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Hairong Liang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Hui Yang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Linhua Liu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Kairu Zhou
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Longmei Xu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Jiaxian Liu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Lin Yun
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Bei Lai
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Li Song
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Hao Luo
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Jianming Peng
- Huizhou Prevention and Treatment Centre for Occupational Disease, Huizhou, 516000, China
| | - Zhidong Liu
- Huizhou Prevention and Treatment Centre for Occupational Disease, Huizhou, 516000, China
| | - Yongmei Xiao
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Wen Chen
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Huanwen Tang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
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15
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Chen S, Liang H, Hu G, Yang H, Zhou K, Xu L, Liu J, Lai B, Song L, Luo H, Peng J, Liu Z, Xiao Y, Chen W, Tang H. Differently expressed long noncoding RNAs and mRNAs in TK6 cells exposed to low dose hydroquinone. Oncotarget 2017; 8:95554-95567. [PMID: 29221148 PMCID: PMC5707042 DOI: 10.18632/oncotarget.21481] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 09/20/2017] [Indexed: 02/06/2023] Open
Abstract
Previous studies have shown that long noncoding RNAs (lncRNAs) were related to human carcinogenesis and might be designated as diagnosis and prognosis biomarkers. Hydroquinone (HQ), as one of the metabolites of benzene, was closely relevant to occupational benzene poisoning and occupational leukemia. Using high-throughput sequencing technology, we investigated differences in lncRNA and mRNA expression profiles between experimental group (HQ 20 μmol/L) and control group (PBS). Compared to control group, a total of 65 lncRNAs and 186 mRNAs were previously identified to be aberrantly expressed more than two fold change in experimental group. To validate the sequencing results, we selected 10 lncRNAs and 10 mRNAs for quantitative real-time PCR (qRT-PCR). Through GO annotation and KEGG pathway analysis, we obtained 3 mainly signaling pathways, including P53 signaling pathway, which plays an important role in tumorigenesis and progression. After that, 25 lncRNAs and 32 mRNAs formed the lncRNA-mRNA co-expression network were implemented to play biological functions of the dysregulated lncRNAs transcripts by regulating gene expression. The lncRNAs target genes prediction provided a new idea for the study of lncRNAs. Finally, we have another important discovery, which is screened out 11 new lncRNAs without annotated. All these results uncovered that lncRNA and mRNA expression profiles in TK6 cells exposed to low dose HQ were different from control group, helping to further study the toxicity mechanisms of HQ and providing a new direction for the therapy of leukemia.
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Affiliation(s)
- Shaoyun Chen
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Hairong Liang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Gonghua Hu
- Department of Preventive Medicine, Gannan Medical University, Ganzhou, 341000, China
| | - Hui Yang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Kairu Zhou
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Longmei Xu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Jiaxian Liu
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Bei Lai
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Li Song
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Hao Luo
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
| | - Jianming Peng
- Huizhou Prevention and Treatment Centre for Occupational Disease, Huizhou, 516000, China
| | - Zhidong Liu
- Huizhou Prevention and Treatment Centre for Occupational Disease, Huizhou, 516000, China
| | - Yongmei Xiao
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Wen Chen
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Huanwen Tang
- Department of Environmental and Occupational Health, Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, China
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16
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Sun LN, Zhi Z, Chen LY, Zhou Q, Li XM, Gan WJ, Chen S, Yang M, Liu Y, Shen T, Xu Y, Li JM. SIRT1 suppresses colorectal cancer metastasis by transcriptional repression of miR-15b-5p. Cancer Lett 2017; 409:104-115. [PMID: 28923398 DOI: 10.1016/j.canlet.2017.09.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 08/29/2017] [Accepted: 09/10/2017] [Indexed: 12/19/2022]
Abstract
The class III deacetylase sirtuin 1 (SIRT1), a member of the sirtuin family proteins, plays a key role in many types of cancers including colorectal cancer (CRC). Here we report that SIRT1 suppressed CRC metastasis in vitro and in vivo as a negative regulator for miR-15b-5p transcription. Mechanistically, SIRT1 impaired regulatory effects of activator protein (AP-1) on miR-15b-5p trans-activation through deacetylation of AP-1. Importantly, acyl-CoA oxidase 1 (ACOX1), a key enzyme of the fatty acid oxidation (FAO) pathway, was found as a direct target for miR-15b-5p. SIRT1 expression was positively correlated with ACOX1 expression in CRC cells and in xenografts. Moreover, ACOX1 overexpression attenuated the augmentation of migration and invasion of CRC cells by miR-15b-5p overexpression. In conclusion, our study demonstrated a functional role of the SIRT1/miR-15b-5p/ACOX1 axis in CRC metastasis and suggested a potential target for metastatic CRC therapy.
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Affiliation(s)
- Li-Na Sun
- Department of Pathology and Pathophysiology, Medical College of Soochow University, Soochow University, Suzhou 215123, People's Republic of China
| | - Zheng Zhi
- Department of Pathology and Pathophysiology, Medical College of Soochow University, Soochow University, Suzhou 215123, People's Republic of China
| | - Liang-Yan Chen
- Department of Pathology and Pathophysiology, Medical College of Soochow University, Soochow University, Suzhou 215123, People's Republic of China
| | - Qun Zhou
- Department of Pathology and Pathophysiology, Medical College of Soochow University, Soochow University, Suzhou 215123, People's Republic of China
| | - Xiu-Ming Li
- Department of Pathology and Pathophysiology, Medical College of Soochow University, Soochow University, Suzhou 215123, People's Republic of China
| | - Wen-Juan Gan
- First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215123, People's Republic of China
| | - Shu Chen
- Department of Clinical Medicine, Medical College of Soochow University, Suzhou 215123, People's Republic of China
| | - Meng Yang
- Department of Clinical Medicine, Medical College of Soochow University, Suzhou 215123, People's Republic of China
| | - Yao Liu
- Department of Pathology and Pathophysiology, Medical College of Soochow University, Soochow University, Suzhou 215123, People's Republic of China
| | - Tong Shen
- Department of Pathology and Pathophysiology, Medical College of Soochow University, Soochow University, Suzhou 215123, People's Republic of China
| | - Yong Xu
- Department of Pathophysiology, Nanjing Medical University, Nanjing 210029, People's Republic of China.
| | - Jian-Ming Li
- Department of Pathology and Pathophysiology, Medical College of Soochow University, Soochow University, Suzhou 215123, People's Republic of China.
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17
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Cheng Q, Wu L, Tu R, Wu J, Kang W, Su T, Du R, Liu W. Mycoplasma fermentans deacetylase promotes mammalian cell stress tolerance. Microbiol Res 2017; 201:1-11. [PMID: 28602396 DOI: 10.1016/j.micres.2017.04.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Revised: 04/09/2017] [Accepted: 04/22/2017] [Indexed: 12/19/2022]
Abstract
Mycoplasma fermentans is a pathogenic bacterium that infects humans and has potential pathogenic roles in respiratory, genital and rheumatoid diseases. NAD+-dependent deacetylase is involved in a wide range of pathophysiological processes and our studies have demonstrated that expression of mycoplasmal deacetylase in mammalian cells inhibits proliferation but promotes anti-starvation stress tolerance. Furthermore, mycoplasmal deacetylase is involved in cellular anti-oxidation, which correlates with changes in the proapoptotic proteins BIK, p21 and BIM. Mycoplasmal deacetylase binds to and deacetylates the FOXO3 protein, similar with mammalian SIRT2, and affects expression of the FOXO3 target gene BIM, resulting in inhibition of cell proliferation. Mycoplasmal deacetylase also alters the performance of cells under drug stress. This study expands our understanding of the potential molecular and cellular mechanisms of interaction between mycoplasmas and mammalian cells.
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Affiliation(s)
- Qingzhou Cheng
- College of Health Sciences and Nursing, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Lijuan Wu
- College of Health Sciences and Nursing, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Rongfu Tu
- College of Life Sciences, Wuhan University, Wuhan, Hubei, China
| | - Jun Wu
- College of Health Sciences and Nursing, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Wenqian Kang
- College of Life Sciences, Wuhan University, Wuhan, Hubei, China
| | - Tong Su
- College of Life Sciences, Wuhan University, Wuhan, Hubei, China
| | - Runlei Du
- College of Life Sciences, Wuhan University, Wuhan, Hubei, China.
| | - Wenbin Liu
- College of Health Sciences and Nursing, Wuhan Polytechnic University, Wuhan, Hubei, China; College of Medicine, University of Florida, Gainesville, FL, USA.
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18
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Xu L, Liu J, Chen Y, Yun L, Chen S, Zhou K, Lai B, Song L, Yang H, Liang H, Tang H. Inhibition of autophagy enhances Hydroquinone-induced TK6 cell death. Toxicol In Vitro 2017; 41:123-132. [PMID: 28263894 DOI: 10.1016/j.tiv.2017.02.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 02/18/2017] [Accepted: 02/28/2017] [Indexed: 12/16/2022]
Abstract
Hydroquinone (HQ), one of the metabolic products of benzene, is a carcinogen. It can induce apoptosis in lymphoma cells. However, whether HQ can induce autophagy and what roles autophagy plays in TK6 cells exposured to HQ remains unclear. In this study, we found that HQ could induce autophagy through techniques of qRT-PCR, Western blot, immunofluorescent assay of LC3 and transmission electron microscope. Furthermore, inhibiting autophagy using 3-methyladenine (3-MA) or chloroquine (CQ) significantly enhanced HQ-induced cell apoptosis, suggesting that autophagy may be a survival mechanism. Our study also showed that HQ activated PARP-1. Moreover, knockdown of PARP-1 strongly exhibited decreased autophagy related genes expression. In contrast, the absence of SIRT1 increased that. Altogether, our data provided evidence that HQ induced autophagy in TK6 cells and autophagy protected TK6 from HQ attack-induced injury in vitro, and the autophagy was partially mediated via activation of the PARP-1-SIRT1 signaling pathway.
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Affiliation(s)
- Longmei Xu
- School of Public Health, Guangdong Medical University, PR-523808 Dongguan, Guangdong, China; Dongguan Key Laboratory of Environmental Medicine, PR-523808 Dongguan, Guangdong, China
| | - Jiaxian Liu
- School of Public Health, Guangdong Medical University, PR-523808 Dongguan, Guangdong, China; Dongguan Key Laboratory of Environmental Medicine, PR-523808 Dongguan, Guangdong, China
| | - Yuting Chen
- School of Public Health, Guangdong Medical University, PR-523808 Dongguan, Guangdong, China; Dongguan Key Laboratory of Environmental Medicine, PR-523808 Dongguan, Guangdong, China
| | - Lin Yun
- School of Public Health, Guangdong Medical University, PR-523808 Dongguan, Guangdong, China; Dongguan Key Laboratory of Environmental Medicine, PR-523808 Dongguan, Guangdong, China
| | - Shaoyun Chen
- School of Public Health, Guangdong Medical University, PR-523808 Dongguan, Guangdong, China; Dongguan Key Laboratory of Environmental Medicine, PR-523808 Dongguan, Guangdong, China
| | - Kairu Zhou
- School of Public Health, Guangdong Medical University, PR-523808 Dongguan, Guangdong, China; Dongguan Key Laboratory of Environmental Medicine, PR-523808 Dongguan, Guangdong, China
| | - Bei Lai
- School of Public Health, Guangdong Medical University, PR-523808 Dongguan, Guangdong, China; Dongguan Key Laboratory of Environmental Medicine, PR-523808 Dongguan, Guangdong, China
| | - Li Song
- School of Public Health, Guangdong Medical University, PR-523808 Dongguan, Guangdong, China; Dongguan Key Laboratory of Environmental Medicine, PR-523808 Dongguan, Guangdong, China
| | - Hui Yang
- School of Public Health, Guangdong Medical University, PR-523808 Dongguan, Guangdong, China; Dongguan Key Laboratory of Environmental Medicine, PR-523808 Dongguan, Guangdong, China
| | - Hairong Liang
- School of Public Health, Guangdong Medical University, PR-523808 Dongguan, Guangdong, China; Dongguan Key Laboratory of Environmental Medicine, PR-523808 Dongguan, Guangdong, China
| | - Huanwen Tang
- School of Public Health, Guangdong Medical University, PR-523808 Dongguan, Guangdong, China; Dongguan Key Laboratory of Environmental Medicine, PR-523808 Dongguan, Guangdong, China.
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