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Yang L, Jiang Z, Yang L, Zheng W, Chen Y, Qu F, Crabbe MJC, Zhang Y, Andersen ME, Zheng Y, Qu W. Disinfection Byproducts of Haloacetaldehydes Disrupt Hepatic Lipid Metabolism and Induce Lipotoxicity in High-Fat Culture Conditions. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:12356-12367. [PMID: 38953388 DOI: 10.1021/acs.est.3c11009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Unhealthy lifestyles, obesity, and environmental pollutants are strongly correlated with the development of nonalcoholic fatty liver disease (NAFLD). Haloacetaldehyde-associated disinfection byproducts (HAL-DBPs) at various multiples of concentrations found in finished drinking water together with high-fat (HF) were examined to gauge their mixed effects on hepatic lipid metabolism. Using new alternative methods (NAMs), studying effects in human cells in vitro for risk assessment, we investigated the combined effects of HF and HAL-DBPs on hepatic lipid metabolism and lipotoxicity in immortalized LO-2 human hepatocytes. Coexposure of HAL-DBPs at various multiples of environmental exposure levels with HF increased the levels of triglycerides, interfered with de novo lipogenesis, enhanced fatty acid oxidation, and inhibited the secretion of very low-density lipoproteins. Lipid accumulation caused by the coexposure of HAL-DBPs and HF also resulted in more severe lipotoxicity in these cells. Our results using an in vitro NAM-based method provide novel insights into metabolic reprogramming in hepatocytes due to coexposure of HF and HAL-DBPs and strongly suggest that the risk of NAFLD in sensitive populations due to HAL-DBPs and poor lifestyle deserves further investigation both with laboratory and epidemiological tools. We also discuss how results from our studies could be used in health risk assessments for HAL-DBPs.
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Affiliation(s)
- Lili Yang
- Key Laboratory of Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Zhiqiang Jiang
- Key Laboratory of Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Lan Yang
- Key Laboratory of Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Weiwei Zheng
- Key Laboratory of Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Yu Chen
- Key Laboratory of Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Fei Qu
- Key Laboratory of Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - M James C Crabbe
- Wolfson College, Oxford University, Oxford OX2 6UD, United Kingdom
- Institute of Biomedical and Environmental Science & Technology, University of Bedfordshire, Luton LU1 3JU, U.K
| | - Yubin Zhang
- Key Laboratory of Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Melvin E Andersen
- ScitoVation, LLC, 6 Davis Drive, Suite 146, Research Triangle Park, North Carolina 27713, United States
| | - Yuxin Zheng
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China
| | - Weidong Qu
- Key Laboratory of Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
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Jiang Z, Yang L, Liu Q, Qiu M, Chen Y, Qu F, Crabbe MJC, Wang H, Andersen ME, Zheng Y, Qu W. Haloacetamides disinfection by-products, a potential risk factor for nonalcoholic fatty liver disease. WATER RESEARCH 2024; 261:122008. [PMID: 38944971 DOI: 10.1016/j.watres.2024.122008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 05/21/2024] [Accepted: 06/26/2024] [Indexed: 07/02/2024]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a metabolic disorder characterized by abnormal lipid deposition, with oxidative stress being a risk factor in its onset and progression. Haloacetamides (HAcAms), as unregulated disinfection by-products in drinking water, may alter the incidence and severity of NAFLD through the production of oxidative stress. We explored whether HAcAms at 1, 10, and 100-fold concentrations in Shanghai drinking water perturbed lipid metabolism in normal human liver LO-2 cells. CRISPR/Cas9 was used to construct a LO-2 line with stable NRF2 knock-down (NRF2-KD) to investigate the mechanism underlying abnormal lipid accumulation and hepatocyte damage caused by mixed exposure to HAcAms. At 100-fold real-world concentration, HAcAms caused lipid deposition and increased triglyceride accumulation in LO-2 cells, consistent with altered de novo lipogenesis. Differences in responses to HAcAms in normal and NRF2-KD LO-2 cells indicated that HAcAms caused hepatocyte lipid deposition and triglyceride accumulation by activation of the NRF2/PPARγ pathway and aggravated liver cell toxicity by inducing ferroptosis. These results indicate that HAcAms are important risk factors for NAFLD. Further observations and verifications of the effect of HAcAms on NAFLD in the population are warranted in the future.
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Affiliation(s)
- Zhiqiang Jiang
- Center for Water and Health, Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University Shanghai, 200032, China
| | - Lili Yang
- Center for Water and Health, Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University Shanghai, 200032, China
| | - Qinxin Liu
- Center for Water and Health, Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University Shanghai, 200032, China
| | - Meiyue Qiu
- Center for Water and Health, Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University Shanghai, 200032, China
| | - Yu Chen
- Center for Water and Health, Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University Shanghai, 200032, China
| | - Fei Qu
- Center for Water and Health, Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University Shanghai, 200032, China
| | - M James C Crabbe
- Wolfson College, Oxford University, Oxford OX2 6UD, United Kingdom
| | - Hongbing Wang
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD 21201, United States
| | - Melvin E Andersen
- ScitoVation LLC. 6 Davis Drive, Suite 146, Research Triangle Park, NC 27713, United States
| | - Yuxin Zheng
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, No.308 Ningxia Road, Qingdao 266071, China
| | - Weidong Qu
- Center for Water and Health, Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University Shanghai, 200032, China.
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Feng T, Yang J, Tu S, Yang T, Wu T, Zhu W, Le Y, Liu L. Design, Synthesis, and Cellular Imaging Application of a Fluorescent Probe Based on Fluoride Ion-Induced Cyclization of Phenothiazine Derivatives. J Fluoresc 2023:10.1007/s10895-023-03526-3. [PMID: 38047988 DOI: 10.1007/s10895-023-03526-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 11/24/2023] [Indexed: 12/05/2023]
Abstract
Fluoride is both necessary and potentially harmful in excessive amounts, making its detection crucial. Fluorescent probes provide a sensitive and selective means for this purpose. In this study, we developed and synthesized a fluorescent probe for LDT using phenothiazine derivatives and aryl vinyl nitrile. Initially non-fluorescent, the probe undergoes a Si-O bond breakage in the presence of fluoride ions, resulting in the formation of a larger conjugated system and subsequent fluorescence emission. The probe exhibits superior selectivity and sensitivity towards fluoride ions, with a detection limit of 0.35 µM. Moreover, cellular imaging experiments demonstrated the probe's effectiveness in recognizing fluoride ions within HepG2 cells.
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Affiliation(s)
- Tingting Feng
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - Jiaxue Yang
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - San Tu
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - Ting Yang
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - Ting Wu
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - Wenqiang Zhu
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - Yi Le
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
- Guizhou Engineering Laboratory for Synthetic Drugs, Guiyang, 550025, China
| | - Li Liu
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China.
- Guizhou Engineering Laboratory for Synthetic Drugs, Guiyang, 550025, China.
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