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Li Y, Lv Y, Jiang Z, Ma C, Li R, Zhao M, Guo Y, Guo H, Zhang X, Li A, Liu Y. Association of co-exposure to organophosphate esters and per- and polyfluoroalkyl substances and mixture with cardiovascular-kidney-liver-metabolic biomarkers among Chinese adults. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 280:116524. [PMID: 38838464 DOI: 10.1016/j.ecoenv.2024.116524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 05/14/2024] [Accepted: 05/27/2024] [Indexed: 06/07/2024]
Abstract
BACKGROUND Organophosphate esters (OPEs) and Per- and polyfluoroalkyl substances (PFAS) are ubiquitous environmental contaminants with common exposure sources, leading to their widespread presence in human body. However, evidence on co-exposure to OPEs and PFAS and its impact on cardiovascular-kidney-liver-metabolic biomarkers remains limited. METHODS In this cross-sectional study, 467 adults were enrolled from January to May 2022 during physical visits in Shijiazhuang, Hebei province. Eleven types of OPEs and twelves types of PFAS were detected, among which eight OPEs and six PFAS contaminants were detected in more than 60% of plasma samples. Seventeen biomarkers were assessed to comprehensively evaluate the cardiovascular-kidney-liver-metabolic function. Multiple linear regression, multipollutant models with sparse partial least squares, and Bayesian kernel machine regression (BKMR) models were applied to examine the associations of individual OPEs and PFAS and their mixtures with organ function and metabolism, respectively. RESULTS Of the over 400 exposure-outcome associations tested when modelling, we observed robust results across three models that perfluorohexanoic acid (PFHxS) was significantly positively associated with alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TBIL), and indirect bilirubin (IBIL). Perfluorononanoic acid was significantly associated with decreased AST/ALT and increased very-low-density lipoprotein cholesterol levels. Besides, perfluorodecanoic acid was correlated with increased high lipoprotein cholesterol and perfluoroundecanoic acid was consistently associated with lower glucose level. BKMR analysis showed that OPEs and PFAS mixtures were positively associated with IBIL and TBIL, among which PFHxS was the main toxic chemicals. CONCLUSIONS Our findings suggest that exposure to OPEs and PFAS, especially PFHxS and PFNA, may disrupt organ function and metabolism in the general population, providing insight into the potential pathophysiological mechanisms of OPEs and PFAS co-exposure and chronic diseases.
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Affiliation(s)
- Yanbing Li
- Department of Epidemiology and Biostatistics, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing 100005, PR China; Center of Environmental and Health Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100005, PR China
| | - Yi Lv
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang 050017, PR China
| | - Zexuan Jiang
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang 050017, PR China
| | - Chaoying Ma
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang 050017, PR China
| | - Ran Li
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang 050017, PR China
| | - Mengwei Zhao
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang 050017, PR China
| | - Yi Guo
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang 050017, PR China
| | - Huicai Guo
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang 050017, PR China; Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, Hebei Province 050017, PR China; The Key Laboratory of Neural and Vascular Biology, Ministry of Education, Shijiazhuang 050017, PR China
| | - Xiaoguang Zhang
- Core Facilities and Centers of Hebei Medical University, Shijiazhuang 050017, PR China
| | - Ang Li
- Department of Epidemiology and Biostatistics, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing 100005, PR China; Center of Environmental and Health Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100005, PR China; Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, Hebei Province 050017, PR China.
| | - Yi Liu
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang 050017, PR China; Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, Hebei Province 050017, PR China.
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Chen W, Han L, Yang R, Wang H, Yao S, Deng H, Liu S, Zhou Y, Shen XL. Central role of Sigma-1 receptor in ochratoxin A-induced ferroptosis. Arch Toxicol 2024:10.1007/s00204-024-03805-3. [PMID: 38896176 DOI: 10.1007/s00204-024-03805-3] [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: 04/13/2024] [Accepted: 06/12/2024] [Indexed: 06/21/2024]
Abstract
Ochratoxin A (OTA), a secondary fungal metabolite known for its nephrotoxic effects, is prevalent in various feeds and food items. Our recent study suggests that OTA-induced nephrotoxicity is linked to the Sigma-1 receptor (Sig-1R)-mediated mitochondrial pathway apoptosis in human proximal tubule epithelial-originated kidney-2 (HK-2) cells. However, the contribution of Sig-1R to OTA-induced nephrotoxicity involving other forms of regulated cell death, such as ferroptosis, remains unexplored. In this investigation, cell viability, malondialdehyde (MDA) levels, glutathione (GSH) levels, and protein expressions in HK-2 cells treated with OTA and/or Ferrostatin-1/blarcamesine hydrochloride/BD1063 dihydrochloride were assessed. The results indicate that a 24 h-treatment with 1 μM OTA significantly induces ferroptosis by inhibiting Sig-1R, subsequently promoting nuclear receptor coactivator 4 (NCOA4), long-chain fatty acid-CoA ligase 4 (ACSL4), arachidonate 5-lipoxygenase (ALOX5), autophagy protein 5 (ATG5), and ATG7, inhibiting ferritin heavy chain (FTH1), solute carrier family 7 member 11 (SLC7A11/xCT), glutathione peroxidase 4 (GPX4), peroxiredoxin 6 (PRDX6), and ferroptosis suppressor protein 1 (FSP1), reducing GSH levels, and increasing MDA levels (P < 0.05). In conclusion, OTA induces ferroptosis by inhibiting Sig-1R, subsequently promoting ferritinophagy, inhibiting GPX4/FSP1 antioxidant systems, reducing GSH levels, and ultimately increasing lipid peroxidation levels in vitro.
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Affiliation(s)
- Wenying Chen
- School of Public Health, Zunyi Medical University, No.1 Campus Road, Xinpu District, Zunyi, 563000, Guizhou, People's Republic of China
- Key Laboratory of Maternal & Child Health and Exposure Science of Guizhou Higher Education Institutes, Zunyi, 563000, Guizhou, People's Republic of China
| | - Lingyun Han
- School of Public Health, Zunyi Medical University, No.1 Campus Road, Xinpu District, Zunyi, 563000, Guizhou, People's Republic of China
| | - Ruiran Yang
- School of Public Health, Zunyi Medical University, No.1 Campus Road, Xinpu District, Zunyi, 563000, Guizhou, People's Republic of China
| | - Hongwei Wang
- School of Public Health, Zunyi Medical University, No.1 Campus Road, Xinpu District, Zunyi, 563000, Guizhou, People's Republic of China
| | - Song Yao
- School of Public Health, Zunyi Medical University, No.1 Campus Road, Xinpu District, Zunyi, 563000, Guizhou, People's Republic of China
| | - Huiqiong Deng
- School of Public Health, Zunyi Medical University, No.1 Campus Road, Xinpu District, Zunyi, 563000, Guizhou, People's Republic of China
- Fuling District Center for Disease Control and Prevention, Fuling, 408000, Chongqing, People's Republic of China
| | - Shuangchao Liu
- School of Public Health, Zunyi Medical University, No.1 Campus Road, Xinpu District, Zunyi, 563000, Guizhou, People's Republic of China
| | - Yao Zhou
- School of Public Health, Zunyi Medical University, No.1 Campus Road, Xinpu District, Zunyi, 563000, Guizhou, People's Republic of China
| | - Xiao Li Shen
- School of Public Health, Zunyi Medical University, No.1 Campus Road, Xinpu District, Zunyi, 563000, Guizhou, People's Republic of China.
- Key Laboratory of Maternal & Child Health and Exposure Science of Guizhou Higher Education Institutes, Zunyi, 563000, Guizhou, People's Republic of China.
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3
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Du J, Zhang X, Li B, Huo S, Zhang J, Fu Y, Song M, Shao B, Li Y. The hepatotoxicity of hexafluoropropylene oxide trimer acid caused by apoptosis via endoplasmic reticulum-mitochondrial crosstalk. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 922:171234. [PMID: 38428612 DOI: 10.1016/j.scitotenv.2024.171234] [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: 12/05/2023] [Revised: 02/20/2024] [Accepted: 02/22/2024] [Indexed: 03/03/2024]
Abstract
As a ubiquitous pollutant in the environment, hexafluoropropylene oxide trimer acid (HFPO-TA) has been proven to have strong hepatotoxicity. However, the underlying mechanism is still unclear. Consequently, in vivo and in vitro models of HFPO-TA exposure were established to investigate the detrimental effects of HFPO-TA on the liver. In vivo, we discovered that HFPO-TA enhanced endoplasmic reticulum (ER)-mitochondrial association, caused mitochondrial oxidative damage, activated ER stress, and induced apoptosis in mouse livers. In vitro experiments confirmed that IP3R overexpression on ER structure increased mitochondrial calcium levels, which led to mitochondrial damage and mitochondria-dependent apoptosis in HepG2 cells exposed to HFPO-TA. Subsequently, damaged mitochondria released a large amount of mitochondrial ROS, which activated ER stress and ER stress-dependent apoptosis. In conclusion, this study demonstrates that HFPO-TA can induce apoptosis by regulating the crosstalk between ER and mitochondria, ultimately leading to liver damage. These findings reveal the significant hepatotoxicity of HFPO-TA and its potential mechanisms.
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Affiliation(s)
- Jiayu Du
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Xuliang Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Bo Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Siming Huo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Jian Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yang Fu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Department of Veterinary Medicine, Heze Vocational College, Heze 274031, China
| | - Miao Song
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Bing Shao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yanfei Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China.
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Wang Y, Wu J, Wan M, Yang D, Liu F, Li K, Hu M, Tang Y, Lu H, Zhang S, Xiong Y. m-Cresol,a pesticide intermediate, induces hepatotoxicity and behavioral abnormalities in zebrafish larvae through oxidative stress, apoptosis. Toxicol In Vitro 2024; 94:105723. [PMID: 37871866 DOI: 10.1016/j.tiv.2023.105723] [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: 07/28/2023] [Revised: 10/14/2023] [Accepted: 10/18/2023] [Indexed: 10/25/2023]
Abstract
m-Cresol is mainly used as a pesticide intermediate. It is industrially used in the production of insecticides including boronone and fenthion. It is also an intermediate for color film, resins, plasticizers and fragrances. However, m-cresol has the potential to cause environmental contamination if released accidentally. The molecular mechanism of m-cresol mediated hepatotoxicity remains unclear. In this study, zebrafish larvae were used to comprehensively study the hepatotoxicity of m-cresol and explore its molecular mechanism. After 72 hpf of fertilization, zebrafish larvae were exposed to 0.2 mM,0.4 mM, and 0.6 mM of m-cresol. Varying degrees of liver injury and behavioral abnormalities were observed. The hepatotoxicity of zebrafish larvae may be induced by oxidative stress pathway and apoptosis of cell.
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Affiliation(s)
- Ying Wang
- College of Pharmacy, Nanchang University, Nangchang 330027, Jiangxi, China; Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases,jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Jinggangshan University, Ji'an 343009, China
| | - Jie Wu
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases,jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Jinggangshan University, Ji'an 343009, China
| | - Mengqi Wan
- Department of General Surgery, The Affiliated Children's Hospital of Nanchang Medical College, Nanchang 330006, China
| | - Dou Yang
- College of Pharmacy, Nanchang University, Nangchang 330027, Jiangxi, China; Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases,jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Jinggangshan University, Ji'an 343009, China
| | - Fasheng Liu
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases,jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Jinggangshan University, Ji'an 343009, China
| | - Kehao Li
- Department of General Surgery, The Affiliated Children's Hospital of Nanchang Medical College, Nanchang 330006, China
| | - Manxin Hu
- Department of General Surgery, The Affiliated Children's Hospital of Nanchang Medical College, Nanchang 330006, China
| | - Yuanyuan Tang
- College of Pharmacy, Nanchang University, Nangchang 330027, Jiangxi, China
| | - Huiqiang Lu
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases,jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Jinggangshan University, Ji'an 343009, China; Affiliated Hospital of Jinggangshan University, Jian 343000, Jiangxi Province, China.
| | - Shouhua Zhang
- Department of General Surgery, The Affiliated Children's Hospital of Nanchang Medical College, Nanchang 330006, China.
| | - Yuanzhen Xiong
- College of Pharmacy, Nanchang University, Nangchang 330027, Jiangxi, China.
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5
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Li WY, Liu JY, Wang ZX, Wang KY, Huang CX, He W, Song JL. Sinapic Acid Attenuates Chronic DSS-Induced Intestinal Fibrosis in C57BL/6J Mice by Modulating NLRP3 Inflammasome Activation and the Autophagy Pathway. ACS OMEGA 2024; 9:1230-1241. [PMID: 38222654 PMCID: PMC10785090 DOI: 10.1021/acsomega.3c07474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/23/2023] [Accepted: 12/06/2023] [Indexed: 01/16/2024]
Abstract
Ulcerative colitis (UC) is a chronic gastrointestinal disease that results from repeated inflammation and serious complications. Sinapic acid (SA) is a hydroxycinnamic acid present in a variety of plants that has antioxidant, anti-inflammatory, anticancer, and other protective effects. This study investigated the antifibrotic effect of SA on chronic colitis induced by dextran sulfate sodium salt (DSS) in mice. We observed that SA could significantly reduce clinical symptoms (such as improved body weight loss, increased colon length, and decreased disease activity index score) and pathological changes in mice with chronic colitis. SA supplementation has been demonstrated to repair intestinal mucosal barrier function and maintain epithelial homeostasis by inhibiting activation of the NLRP3 inflammasome and decreasing the expression of IL-6, TNF-α, IL-17A, IL-18, and IL-1β. Furthermore, SA could induce the expression of antioxidant enzymes (Cat, Sod1, Sod2, Mgst1) by activating the Nrf2/keap1 pathway, thus improving antioxidant capacity. Additionally, SA could increase the protein expression of downstream LC3-II/LC3-I and Beclin1 and induce autophagy by regulating the AMPK-Akt/mTOR signaling pathway, thereby reducing the production of intestinal fibrosis-associated proteins Collagen-I and α-SMA. These findings suggest that SA can enhance intestinal antioxidant enzymes, reduce oxidative stress, expedite intestinal epithelial repair, and promote autophagy, thereby ameliorating DSS-induced colitis and intestinal fibrosis.
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Affiliation(s)
- Wan-Ying Li
- Department
of Nutrition and Food Hygiene, School of Public Health, Guilin Medical University, Guilin 541100, Guangxi, China
- Department
of Clinical Nutrition, Liuzhou People’s
Hospital, Liuzhou 545006, Guangxi, China
| | - Jun-Yang Liu
- Department
of Nutrition and Food Hygiene, School of Public Health, Guilin Medical University, Guilin 541100, Guangxi, China
| | - Zi-Xian Wang
- Department
of Nutrition and Food Hygiene, School of Public Health, Guilin Medical University, Guilin 541100, Guangxi, China
| | - Ke-Ying Wang
- Department
of Nutrition and Food Hygiene, School of Public Health, Guilin Medical University, Guilin 541100, Guangxi, China
| | - Chun-Xiang Huang
- Department
of Nutrition and Food Hygiene, School of Public Health, Guilin Medical University, Guilin 541100, Guangxi, China
| | - Wen He
- Guangxi
Key Laboratory of Environmental Exposureomics and Entire Lifecycle
Health, Guilin Medical University, Guilin 541100, Guangxi, China
| | - Jia-Le Song
- Department
of Nutrition and Food Hygiene, School of Public Health, Guilin Medical University, Guilin 541100, Guangxi, China
- Guangxi
Key Laboratory of Environmental Exposureomics and Entire Lifecycle
Health, Guilin Medical University, Guilin 541100, Guangxi, China
- Department
of Clinical Nutrition and Obstetrics, The
Second Affiliated Hospital of Guilin Medical University, Guilin 541199, Guangxi, China
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6
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Rickard BP, Overchuk M, Tulino J, Tan X, Ligler FS, Bae-Jump VL, Fenton SE, Rizvi I. Exposure to select PFAS and PFAS mixtures alters response to platinum-based chemotherapy in endometrial cancer cell lines. Environ Health 2023; 22:87. [PMID: 38098045 PMCID: PMC10720226 DOI: 10.1186/s12940-023-01034-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 11/16/2023] [Indexed: 12/18/2023]
Abstract
BACKGROUND Exposure to per- and poly-fluoroalkyl substances (PFAS) has been associated with significant alterations in female reproductive health. These include changes in menstrual cyclicity, timing of menarche and menopause, and fertility outcomes, as well as increased risk of endometriosis, all of which may contribute to an increased risk of endometrial cancer. The effect of PFAS on endometrial cancer cells, specifically altered treatment response and biology, however, remains poorly studied. Like other gynecologic malignancies, a key contributor to lethality in endometrial cancer is resistance to chemotherapeutics, specifically to platinum-based agents that are used as the standard of care for patients with advanced-stage and/or recurrent disease. OBJECTIVES To explore the effect of environmental exposures, specifically PFAS, on platinum-based chemotherapy response and mitochondrial function in endometrial cancer. METHODS HEC-1 and Ishikawa endometrial cancer cells were exposed to sub-cytotoxic nanomolar and micromolar concentrations of PFAS/PFAS mixtures and were treated with platinum-based chemotherapy. Survival fraction was measured 48-h post-chemotherapy treatment. Mitochondrial membrane potential was evaluated in both cell lines following exposure to PFAS ± chemotherapy treatment. RESULTS HEC-1 and Ishikawa cells displayed differing outcomes after PFAS exposure and chemotherapy treatment. Cells exposed to PFAS appeared to be less sensitive to carboplatin, with instances of increased survival fraction, indicative of platinum resistance, observed in HEC-1 cells. In Ishikawa cells treated with cisplatin, PFAS mixture exposure significantly decreased survival fraction. In both cell lines, increases in mitochondrial membrane potential were observed post-PFAS exposure ± chemotherapy treatment. DISCUSSION Exposure of endometrial cancer cell lines to PFAS/PFAS mixtures had varying effects on response to platinum-based chemotherapies. Increased survival fraction post-PFAS + carboplatin treatment suggests platinum resistance, while decreased survival fraction post-PFAS mixture + cisplatin exposure suggests enhanced therapeutic efficacy. Regardless of chemotherapy sensitivity status, mitochondrial membrane potential findings suggest that PFAS exposure may affect endometrial cancer cell mitochondrial functioning and should be explored further.
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Affiliation(s)
- Brittany P Rickard
- Curriculum in Toxicology & Environmental Medicine, University of North Carolina School of Medicine, University of North Carolina at Chapel Hill, 116 Manning Drive, Chapel Hill, NC, 27599, USA
- Mechanistic Toxicology Branch, Division of Translational Toxicology, National Institute of Environmental Health Sciences, 111 T.W. Alexander Drive, Research Triangle Park, Durham, NC, 27709, USA
| | - Marta Overchuk
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, 116 Manning Drive, Chapel Hill, NC 27599, USA; Engineering Building III, North Carolina State University, Raleigh, NC, 27606, USA
| | - Justin Tulino
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, 116 Manning Drive, Chapel Hill, NC 27599, USA; Engineering Building III, North Carolina State University, Raleigh, NC, 27606, USA
| | - Xianming Tan
- Department of Biostatistics, University of North Carolina School of Public Health, 135 Dauer Drive, Chapel Hill, NC, 27599, USA
| | - Frances S Ligler
- Department of Biomedical Engineering, Texas A&M University, 101 Bizzell Street, College Station, TX, 77843, USA
| | - Victoria L Bae-Jump
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, 450 West Drive, Chapel Hill, NC, 27599, USA
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Suzanne E Fenton
- Curriculum in Toxicology & Environmental Medicine, University of North Carolina School of Medicine, University of North Carolina at Chapel Hill, 116 Manning Drive, Chapel Hill, NC, 27599, USA
- Mechanistic Toxicology Branch, Division of Translational Toxicology, National Institute of Environmental Health Sciences, 111 T.W. Alexander Drive, Research Triangle Park, Durham, NC, 27709, USA
| | - Imran Rizvi
- Curriculum in Toxicology & Environmental Medicine, University of North Carolina School of Medicine, University of North Carolina at Chapel Hill, 116 Manning Drive, Chapel Hill, NC, 27599, USA.
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, 116 Manning Drive, Chapel Hill, NC 27599, USA; Engineering Building III, North Carolina State University, Raleigh, NC, 27606, USA.
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, 450 West Drive, Chapel Hill, NC, 27599, USA.
- Center for Environmental Health and Susceptibility, University of North Carolina at Chapel Hill, 135 Dauer Drive, Chapel Hill, NC, 27599, USA.
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7
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Jin J, Huangfu B, Xing F, Xu W, He X. Combined exposure to deoxynivalenol facilitates lipid metabolism disorder in high-fat-diet-induced obesity mice. ENVIRONMENT INTERNATIONAL 2023; 182:108345. [PMID: 38008010 DOI: 10.1016/j.envint.2023.108345] [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: 10/15/2023] [Revised: 11/15/2023] [Accepted: 11/20/2023] [Indexed: 11/28/2023]
Abstract
Deoxynivalenol (DON) is a trichothecene toxin that mainly produced by strains of Fusarium spp. DON contamination is widely distributed and is a global food safety threat. Existing studies have expounded its harmful effects on growth inhibition, endocrine disruption, immune function impairment, and reproductive toxicity. In energy metabolism, DON suppresses appetite, reduces body weight, triggers lipid oxidation, and negatively affects cholesterol and fatty acid homeostasis. In this study, high-fat diet (HFD) induced obese C57BL/6J mice were orally treated with 0.1 mg/kg bw/d and 1.0 mg/kg bw/d DON for 4 weeks. The lipid metabolism of mice and the molecular mechanisms were explored. The data showed that although DON reduced body weight and fat mass in HFD mice, it significantly increased their serum triglyceride concentrations, disturbance of serum lipid metabolites, impaired glucose, and resulted in insulin intolerance in mice. In addition, the transcriptional and expression changes of lipid metabolism genes in the liver and epididymis (EP) adipose indicate that the DON-mediated increase in serum triglycerides is caused by lipoprotein lipase (LPL) inhibition in EP adipose. Furthermore, DON down-regulates the expression of LPL through the PPARγ signaling pathway in EP adipose. These results are further confirmed by the serum lipidomics analysis. In conclusion, DON acts on the PPARγ pathway of white adipose to inhibit the expression of LPL, mediate the increase of serum triglyceride in obese mice, disturb the homeostasis of lipid metabolism, and increase the risk of cardiovascular disease. This study reveals the interference mechanism of DON on lipid metabolism in obese mice and provides a theoretical basis for its toxic effect in obese individuals.
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Affiliation(s)
- Jing Jin
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs of P.R. China, Beijing 100193, PR China
| | - Bingxin Huangfu
- Key Laboratory of Precision Nutrition and Food Quality, Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, Department of Nutrition and Health, China Agricultural University, Beijing 100083, PR China
| | - Fuguo Xing
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs of P.R. China, Beijing 100193, PR China.
| | - Wentao Xu
- Key Laboratory of Precision Nutrition and Food Quality, Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, Department of Nutrition and Health, China Agricultural University, Beijing 100083, PR China
| | - Xiaoyun He
- Key Laboratory of Precision Nutrition and Food Quality, Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, Department of Nutrition and Health, China Agricultural University, Beijing 100083, PR China.
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8
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Sayed MM, Nabil ZI, El-Shenawy NS, Al-Eisa RA, Nafie MS. In Vitro and In Vivo Effects of Synthesis Novel Phenoxyacetamide Derivatives as Potent Apoptotic Inducer against HepG2 Cells through PARP-1 Inhibition. Pharmaceuticals (Basel) 2023; 16:1524. [PMID: 38004390 PMCID: PMC10674780 DOI: 10.3390/ph16111524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 10/21/2023] [Accepted: 10/23/2023] [Indexed: 11/26/2023] Open
Abstract
To discover potential cytotoxic agents, new semi-synthetic phenoxy acetamide derivatives, compound I and compound II, were synthesized, characterized, and screened for their cytotoxic activity against breast cancer (MCF-7) and liver cancer (HepG2) cell lines. The two compounds were more promising against HepG2 than the MCF-7 cell line according to IC50 values. When tested against the HepG2 cell line, compound I, and compound II both had significantly increased cytotoxic activity when compared to the reference medication 5-Fluorouracil (5-FU), with IC50 values of 1.43 M, 5.32 M, and 6.52 M for compound 1, 5-FU and compound II, respectively. Also, compound I displayed a degree of selectivity towards cancer cells compared to normal cells. Compound I significantly enhanced HepG2 total apoptotic cell death by about a 24.51-fold increase. According to cell cycle analysis, compound I induced the arrest of the cell cycle phases G1/S and blocked the progression of the HepG2 cells. Applying the RT-PCR technique achieved a highly significant upregulation in pro-apoptotic genes. The anti-apoptotic gene was significantly downregulated. There was an intrinsic and extrinsic pathway, but the intrinsic pathway was the dominant one. Tumor growth suppression as measured by tumor weight and volume and other hematological, biochemical, and histopathological analyses confirmed the efficacy of compound I as an anticancer agent in vivo examination. Finally, the molecular docking study revealed that compound I was properly docked inside the binding site of PARP-1 protein with stable binding energies and interactive binding modes. Therefore, compound I shows promise as a selective anti-cancer derivative for the treatment of liver cancer after more investigations and clinical studies. This selectivity is a favorable characteristic in the developing cytotoxic agents for cancer treatment, as it indicates a potential for reduced harm to health tissues.
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Affiliation(s)
- Mai M. Sayed
- Zoology Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt; (M.M.S.); (Z.I.N.)
| | - Zohour I. Nabil
- Zoology Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt; (M.M.S.); (Z.I.N.)
| | - Nahla S. El-Shenawy
- Zoology Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt; (M.M.S.); (Z.I.N.)
| | - Rasha A. Al-Eisa
- Department of Biology, College of Sciences, Taif University, Taif 21944, Saudi Arabia;
| | - Mohamed S. Nafie
- Chemistry Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt;
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Kumari A, Singh K. Preventive role of cinnamaldehyde against tenuazonic acid- and Freund's adjuvant-induced histopathological and biochemical alterations in the mouse model. Front Microbiol 2023; 14:1159881. [PMID: 37426034 PMCID: PMC10325827 DOI: 10.3389/fmicb.2023.1159881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 05/31/2023] [Indexed: 07/11/2023] Open
Abstract
Introduction This study was designed to assess the protective role of cinnamaldehyde (Cin) against the synergistic effect of tenuazonic acid (TeA) and Freund's adjuvant on different organs of Swiss albino mice. Methods TeA was administered singly and in combination with Freund's adjuvant intra-peritoneally. The mice were divided into control (vehicle treated), mycotoxicosis-induced (MI) groups, and treatment groups. The route of administration of TeA was intra-peritoneal. The treatment group (FAICT) received Cin orally as a protective agent against TeA-induced mycotoxicosis. The effects on performance, differential leukocyte counts (DLC), and pathological measurements in eight organs (liver, lungs, kidney, spleen, stomach, heart, brain, and testis) were taken into consideration. Results The body weight and feed consumption decreased significantly in the MI groups, which were reversed in the FAICT group. The necropsy observations revealed an increase in the relative organ-to-body weight percentage in the MI groups, which was restored to normal in the FAICT group. Freund's adjuvant enhanced the effects of TeA on DLC. The antioxidant enzymes SOD and CAT decreased, while MDA increased in the MI groups. Caspase-3 activity was reduced in all organs and remained stable in the treatment group. TeA elevated the ALT concentration in the liver and kidneys and the AST in the liver, kidney, heart, and brain tissues. The oxidative stress induced by TeA in the MI groups was ameliorated in the treatment group. Histopathological observations consisted of NASH, pulmonary oedema and fibrosis, renal crystals and inflammation, splenic hyperplasia, gastric ulceration and cyst, cerebral axonopathy, testicular hyperplasia, and vacuolation in the MI groups. However, no such pathology was recorded in the treatment group. Discussions Thus, it can be concluded that the toxicity of TeA was found to be enhanced when combined with Freund's adjuvant. However, Cin exhibited promising protective effects against TeA + Freund's adjuvant toxicity and reverted the pathological alterations caused by them. Additionally, this study emphasizes Freund's adjuvant's ability to increase mycotoxicity rather than just acting as an immunopotentiator.
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Fujiwara N, Yamashita S, Okamoto M, Cooley MA, Ozaki K, Everett ET, Suzuki M. Perfluorooctanoic acid-induced cell death via the dual roles of ROS-MAPK/ERK signaling in ameloblast-lineage cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 260:115089. [PMID: 37271104 DOI: 10.1016/j.ecoenv.2023.115089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 05/27/2023] [Accepted: 05/29/2023] [Indexed: 06/06/2023]
Abstract
Perfluorooctanoic acid (PFOA) is an artificial fluorinated organic compound that has generated increased public attention due to its potential health hazards. Unsafe levels of PFOA exposure can affect reproduction, growth and development. During tooth enamel development (amelogenesis), environmental factors including fluoride can cause enamel hypoplasia. However, the effects of PFOA on ameloblasts and tooth enamel formation remain largely unknown. In the present study we demonstrate several PFOA-mediated cell death pathways (necrosis/necroptosis, and apoptosis) and assess the roles of ROS-MAPK/ERK signaling in PFOA-mediated cell death in mouse ameloblast-lineage cells (ALC). ALC cells were treated with PFOA. Cell proliferation and viability were analyzed by MTT assays and colony formation assays, respectively. PFOA suppressed cell proliferation and viability in a dose dependent manner. PFOA induced both necrosis (PI-positive cells) and apoptosis (cleaved-caspase-3, γH2AX and TUNEL-positive cells). PFOA significantly increased ROS production and up-regulated phosphor-(p)-ERK. Addition of ROS inhibitor N-acetyl cysteine (NAC) suppressed p-ERK and decreased necrosis, and increased cell viability compared to PFOA alone, whereas NAC did not change apoptosis. This suggests that PFOA-mediated necrosis was induced by ROS-MAPK/ERK signaling, but apoptosis was not associated with ROS. Addition of MAPK/ERK inhibitor PD98059 suppressed necrosis and increased cell viability compared to PFOA alone. Intriguingly, PD98059 augmented PFOA-mediated apoptosis. This suggests that p-ERK promoted necrosis but suppressed apoptosis. Addition of the necroptosis inhibitor Necrostatin-1 restored cell viability compared to PFOA alone, while pan-caspase inhibitor Z-VAD did not mitigate PFOA-mediated cell death. These results suggest that 1) PFOA-mediated cell death was mainly caused by necrosis/necroptosis by ROS-MAPK/ERK signaling rather than apoptosis, 2) MAPK/ERK signaling plays the dual roles (promoting necrosis and suppressing apoptosis) under PFOA treatment. This is the initial report to indicate that PFOA could be considered as a possible causative factor for cryptogenic enamel malformation. Further studies are required to elucidate the mechanisms of PFOA-mediated adverse effects on amelogenesis.
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Affiliation(s)
- Natsumi Fujiwara
- Department of Oral Health Promotion, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8504, Japan
| | - Shohei Yamashita
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Motoki Okamoto
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Marion A Cooley
- Department of Oral Biology and Diagnostic Sciences, The Dental College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Kazumi Ozaki
- Department of Oral Health Promotion, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8504, Japan
| | - Eric T Everett
- Division of Oral and Craniofacial Health Sciences, Adams School of Dentistry, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Maiko Suzuki
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA.
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11
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Deng H, Chen W, Zhang B, Zhang Y, Han L, Zhang Q, Yao S, Wang H, Shen XL. Excessive ER-phagy contributes to ochratoxin A-induced apoptosis. Food Chem Toxicol 2023; 176:113793. [PMID: 37080527 DOI: 10.1016/j.fct.2023.113793] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/17/2023] [Accepted: 04/17/2023] [Indexed: 04/22/2023]
Abstract
The nephrotoxic secondary fungal metabolite ochratoxin A (OTA) is ubiquitously existed in foodstuffs and feeds. Although our earlier research provided preliminary evidence that endoplasmic reticulum (ER) was crucial in OTA-induced nephrotoxicity, more research is necessary to understand the fine-tune mechanisms involving ER stress (ERS), ER-phagy, and apoptosis. In the present study, the cell viability and protein expressions of human proximal tubule epithelial (HK-2) cells in response to OTA and/or chloroquine/rapamycin/sodium phenylbutyrate/tunicamycin were determined via cell viability assay, apoptosis analysis, and Western blot analysis. The findings showed that a 24 h-treatment of 0.25-4 μM OTA could significantly reduced the cell viability (P < 0.05), which notably increased with the addition of chloroquine and sodium phenylbutyrate, while decreased with the addition of rapamycin and tunicamycin as compared to group OTA (P < 0.05). A 24 h-treatment of 1-4 μM OTA could markedly induce apoptosis via increasing the protein expressions of GRP78, p-eIF2α, Chop, LC3B-II, Bak, and Bax, and inhibiting the protein expressions of DDRGK1, UBA5, Lonp1, Tex264, FAM134B, p-mTOR, p62, and Bcl-2 in HK-2 cells (P < 0.05). In conclusion, OTA activated ERS, unfolded protein response, and subsequent excessive ER-phagy, thus inducing apoptosis, and the vicious cycle between excessive ER-phagy and ERS could further promote apoptosis in vitro.
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Affiliation(s)
- Huiqiong Deng
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China
| | - Wenying Chen
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China
| | - Boyang Zhang
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, PR China
| | - Yiwen Zhang
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China
| | - Lingyun Han
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China
| | - Qipeng Zhang
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China; Depatment of Hospital Infection Control, The Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, PR China
| | - Song Yao
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China
| | - Hongwei Wang
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China
| | - Xiao Li Shen
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China.
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Guo M, Liu X, Dong C, Wu F, Geng Q, Li F, Tan Z. New insights into the oxidative damage and antioxidant defense mechanism in Manila clams (Ruditapes philippinarum) exposed to 8:2 polyfluoroalkyl phosphate diester stress. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 259:106500. [PMID: 37141848 DOI: 10.1016/j.aquatox.2023.106500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 03/14/2023] [Accepted: 03/15/2023] [Indexed: 05/06/2023]
Abstract
8:2 perfluoroalkyl phosphate diester (8:2 diPAP) is the main precursor of perfluoroalkyl carboxylic acids, and it has been detected in a wide range of environments. In this study, conventional biochemical and histopathological analyses and transcriptome methods were used to investigate the accumulation and oxidative stress of 8:2 diPAP in Manila clams (Ruditapes philippinarum) as well as the clam's defense mechanisms for the first time. The hepatopancreas was the main target organ for 8:2 diPAP accumulation; the concentration reached 484.0 ± 15.5 ng/g after 7 days of exposure to 10 μg/L of 8:2 diPAP, which was 2-100 times higher than that found in other organs. 8:2 diPAP accumulation resulted in significant lipid peroxidation, and the change in malondialdehyde content was highly correlated with 8:2 diPAP accumulation (r > 0.8). The antioxidant enzymes catalase and peroxidase were significantly activated at 7 days of exposure. Although the levels subsequently returned to normal, this restoration was unable to prevent damage. Histopathological analysis showed that 8:2 diPAP exposure resulted in inflammatory damage to the hepatopancreas, which failed to resolve during the recovery period. Transcriptomic analyses showed that the expression of differentially expressed genes had different degrees of positive/negative correlation with antioxidant indicators, and they were significantly enriched in cell death regulatory pathways such as autophagy, apoptosis, and necrosis. The core factor expression results indicated that 8:2 diPAP exposure induced activation of the organismal autophagy factor followed by a shift towards apoptosis. In addition, pathways related to amino acid metabolism and energy metabolism were involved in determining the cell fate of Manila clams. Overall, these results indicated that 8:2 diPAP induced peroxidation of membrane lipids, disturbed physiological processes, and ultimately initiated programmed cell death in Manila clams. The findings of this study provide new insights into the mechanism of toxicity of 8:2 diPAP exposure in marine bivalves.
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Affiliation(s)
- Mengmeng Guo
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Xiaoyu Liu
- Peking University Institute of Advanced Agricultural Sciences, Weifang 261325, China
| | - Chenfan Dong
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Feng Wu
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Qianqian Geng
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Fengling Li
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Zhijun Tan
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China.
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13
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Wang H, Li W, Yang J, Wang Y, Du H, Han M, Xu L, Liu S, Yi J, Chen Y, Jiang Q, He G. Gestational exposure to perfluoroalkyl substances is associated with placental DNA methylation and birth size. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159747. [PMID: 36309289 DOI: 10.1016/j.scitotenv.2022.159747] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 10/20/2022] [Accepted: 10/22/2022] [Indexed: 06/16/2023]
Abstract
DNA methylation is one potential mechanism for the effects of gestational exposure to perfluoroalkyl substances (PFASs) on fetal growth. We investigated 180 pregnant women who participated in a cohort study conducted in Tangshan City, Northern China, and determined the concentrations of 11 PFASs and the methylation of two genes related to fetal growth [insulin-like growth factor 2 (IGF2) and nuclear receptor subfamily 3 group C member 1 (NR3C1)] and one surrogate marker for global methylation [long interspersed nuclear element-1 (LINE-1)] in placenta tissue. Multiple linear regression analysis was performed to examine the associations of log transformed PFASs with the DNA methylation and birth size. Weighted quantile sum regression was used to determine the mixture effect of PFASs. After adjusting for potential confounders, perfluorooctane sulfonate (PFOS) was negatively associated with the overall methylation of LINE-1. PFASs mixture was negatively associated with the methylation of all CpG loci of LINE-1 and overall methylation of NR3C1. Perfluorootanoic acid (PFOA), perfluorononanoic acid (PFNA), perfluorodecanoic acid (PFDA), and the PFASs mixture showed negative associations with head circumference. After stratified by newborns' sex, PFOA, PFNA and the PFASs mixture was negatively associated with overall methylation of LINE-1 only in the male subgroup and the methylation of all CpG loci of LINE-1 was negatively associated with ponderal index only in the female subgroup. The interaction of newborns' sex with PFOS and PFOA on overall methylation of IGF2 was statistically significant and so was the interaction of sex with PFOS on overall methylation of LINE-1. These findings suggested that intrauterine exposure to PFASs affected placental DNA methylation and reduced fetal growth, which might be modified by sex.
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Affiliation(s)
- Hexing Wang
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Wenyun Li
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Jiaqi Yang
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Yuanping Wang
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Hongyi Du
- Healthy Lifestyle Medical Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Minghui Han
- Healthy Lifestyle Medical Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Linji Xu
- Maternal and Child Health Care Hospital, Tangshan, Hebei province, China
| | - Shuping Liu
- Maternal and Child Health Care Hospital, Tangshan, Hebei province, China
| | - Jianping Yi
- Maternal and Child Health Care Hospital, Tangshan, Hebei province, China
| | - Yue Chen
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Qingwu Jiang
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Gengsheng He
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China.
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14
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Zhang Q, Chen W, Zhang B, Zhang Y, Xiao Y, An Y, Han L, Deng H, Yao S, Wang H, Shen XL. Lonp1 and Sig-1R contribute to the counteraction of ursolic acid against ochratoxin A-induced mitochondrial apoptosis. Food Chem Toxicol 2023; 172:113592. [PMID: 36587836 DOI: 10.1016/j.fct.2022.113592] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/11/2022] [Accepted: 12/26/2022] [Indexed: 12/30/2022]
Abstract
Ochratoxin A (OTA), a secondary fungal metabolite with nephrotoxicity, is widespread in numerous kinds of feeds and foodstuffs. Ursolic acid (UA), a water-insoluble pentacyclic triterpene acid, exists in a wide range of food materials and medicinal plants. Our earlier researches provided preliminary evidence that mitochondria- and mitochondria-associated endoplasmic reticulum membranes (MAMs)-located stress-responsive Lon protease 1 (Lonp1) had a protective function in OTA-induced nephrotoxicity, and the renoprotective function of UA against OTA partially due to Lonp1. However, whether other MAMs-located protiens, such as endoplasmic reticulum stress (ERS)-responsive Sigma 1-type opioid receptor (Sig-1R), contribute to the protection of UA against OTA-induced nephrotoxicity together with Lonp1 needs further investigation. In this study, the cell viability, reactive oxygen species, and protein expressions of human proximal tubule epithelial-originated kidney-2 (HK-2) cells varied with OTA and/or UA/CDDO-me/AVex-73/Sig-1R siRNA treatments were determined. Results indicated that a 24 h-treatment of 5 μM OTA could significantly induce mitochondrial-mediated apoptosis via repressing Lonp1 and Sig-1R, thereby enhancing the protein expressions of GRP78, p-PERK, p-eIF2α, CHOP, IRE1α, and Bax, and inhibiting the protein expression of Bcl-2 in HK-2 cells, which could be remarkably relieved by a 2 h-pre-treatment of 4 μM UA (P < 0.05). In conclusion, through mutual promotion between Lonp1 and Sig-1R, UA could effectively relieve OTA-induced apoptosis in vitro and break the vicious cycle between oxidative stress and ERS, which activated the mitochondrial apoptosis pathway.
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Affiliation(s)
- Qipeng Zhang
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China; Depatment of Hospital Infection Control, The Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, PR China
| | - Wenying Chen
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China
| | - Boyang Zhang
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, PR China
| | - Yiwen Zhang
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China
| | - Yuqing Xiao
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China
| | - Yichen An
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China
| | - Lingyun Han
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China
| | - Huiqiong Deng
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China
| | - Song Yao
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China
| | - Hongwei Wang
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China
| | - Xiao Li Shen
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China.
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15
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Hu Z, Shi S, Ou Y, Hu F, Long D. Mitochondria-associated endoplasmic reticulum membranes: A promising toxicity regulation target. Acta Histochem 2023; 125:152000. [PMID: 36696877 DOI: 10.1016/j.acthis.2023.152000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/15/2023] [Accepted: 01/16/2023] [Indexed: 01/24/2023]
Abstract
Mitochondria-associated endoplasmic reticulum membranes (MAMs) are dynamic suborganelle membranes that physically couple endoplasmic reticulum (ER) and mitochondria to provide a platform for exchange of intracellular molecules and crosstalk between the two organelles. Dysfunctions of mitochondria and ER and imbalance of intracellular homeostasis have been discovered in the research of toxics. Cellular activities such as oxidative stress, ER stress, Ca2+ transport, autophagy, mitochondrial fusion and fission, and apoptosis mediated by MAMs are closely related to the toxicological effects of various toxicants. These cellular activities mediated by MAMs crosstalk with each other. Regulating the structure and function of MAMs can alleviate the damage caused by toxicants to some extent. In this review, we discuss the relationships between MAMs and the mechanisms of toxicological effects, and highlight MAMs as a potential target for protection against toxicants.
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Affiliation(s)
- Zehui Hu
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China
| | - Shengyuan Shi
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China
| | - Yiquan Ou
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China
| | - Fangyan Hu
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China
| | - Dingxin Long
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China.
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16
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Xanthones from Gentianella acuta (Michx.) Hulten Ameliorate Colorectal Carcinoma via the PI3K/Akt/mTOR Signaling Pathway. Int J Mol Sci 2023; 24:ijms24032279. [PMID: 36768602 PMCID: PMC9917368 DOI: 10.3390/ijms24032279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/17/2023] [Accepted: 01/21/2023] [Indexed: 01/26/2023] Open
Abstract
Colorectal carcinoma (CRC) is a kind of malignant tumor closely related to ulcerative colitis. Xanthone derivatives are one of the most promising therapeutic drugs which have been used in phase I/II clinical trials for cancer therapy. Our previous study indicated that the aerial parts of Gentianella acuta Michx. Hulten (GA) was rich in xanthones and showed a good therapeutic effect on ulcerative colitis in mice, suggesting that GA xanthones might have some therapeutic or ameliorative effects on CRC. However, no relevant study has been reported. This study aims to find the effective substances of GA inhibiting CRC and clarify their mechanism. Solvent extraction, column chromatographic separation, and LC-MS analysis were used to characterize the 70% EtOH extract of GA and track xanthones abundant fraction XF. MTT assay was carried out to clarify the activity of GA fractions; the result showed XF to be the main active fraction. LC-MS analysis was executed to characterize XF, 38 xanthones were identified. Network pharmacology prediction, in vitro activity screening, and molecular docking assay were combined to predict the potential mechanism; the PI3K/Akt/mTOR signaling pathway was found to be most important. Western blot assay on the main active xanthones 1,3,5-trihydroxyxanthone (16), 1,3,5,8-tetrahydroxyxanthone (17), 1,5,8-trihydroxy-3-methoxyxanthone (18), and 1,7-dihydroxy-3,8-dimethoxyxanthone (19) was used to verify the above prediction; these xanthones were found to inhibit the PI3K/Akt/mTOR signaling pathway, and 17 played a significant role among them through Western blot assay using PI3K/AKT/mTOR agonist IGF-1. In conclusion, this study demonstrated that GA xanthones were effective compounds of GA inhibiting CRC by regulating PI3K/Akt/mTOR signaling pathway transduction, at least. Importantly, 1,3,5,8-tetrahydroxyxanthone (17), the most abundant active xanthone in GA, might be a candidate drug for CRC.
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17
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Lv Y, Cheng L, Peng F. Compositions and Functions of Mitochondria-Associated Endoplasmic Reticulum Membranes and Their Contribution to Cardioprotection by Exercise Preconditioning. Front Physiol 2022; 13:910452. [PMID: 35733995 PMCID: PMC9207531 DOI: 10.3389/fphys.2022.910452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/11/2022] [Indexed: 11/13/2022] Open
Abstract
Mitochondria-associated endoplasmic reticulum membranes (MAMs) are important components of intracellular signaling and contribute to the regulation of intracellular Ca2+/lipid homeostasis, mitochondrial dynamics, autophagy/mitophagy, apoptosis, and inflammation. Multiple studies have shown that proteins located on MAMs mediate cardioprotection. Exercise preconditioning (EP) has been shown to protect the myocardium from adverse stimuli, but these mechanisms are still being explored. Recently, a growing body of evidence points to MAMs, suggesting that exercise or EP may be involved in cardioprotection by modulating proteins on MAMs and subsequently affecting MAMs. In this review, we summarize the latest findings on MAMs, analyzing the structure and function of MAMs and the role of MAM-related proteins in cardioprotection. We focused on the possible mechanisms by which exercise or EP can modulate the involvement of MAMs in cardioprotection. We found that EP may affect MAMs by regulating changes in MFN2, MFN1, AMPK, FUNDC1, BECN1, VDAC1, GRP75, IP3R, CYPD, GSK3β, AKT, NLRP3, GRP78, and LC3, thus playing a cardioprotective role. We also provided direction for future studies that may be of interest so that more in-depth studies can be conducted to elucidate the relationship between EP and cardioprotection.
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18
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Rickard BP, Tan X, Fenton SE, Rizvi I. Select Per- and Polyfluoroalkyl Substances (PFAS) Induce Resistance to Carboplatin in Ovarian Cancer Cell Lines. Int J Mol Sci 2022; 23:5176. [PMID: 35563566 PMCID: PMC9104343 DOI: 10.3390/ijms23095176] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/15/2022] [Accepted: 05/03/2022] [Indexed: 02/01/2023] Open
Abstract
Per- and polyfluoroalkyl substances (PFAS) are ubiquitous environmental contaminants associated with adverse reproductive outcomes including reproductive cancers in women. PFAS can alter normal ovarian function, but the effects of PFAS on ovarian cancer progression and therapy response remain understudied. Ovarian cancer is the most lethal gynecologic malignancy, and a major barrier to effective treatment is resistance to platinum-based chemotherapy. Platinum resistance may arise from exposure to external stimuli such as environmental contaminants. This study evaluated PFAS and PFAS mixture exposures to two human ovarian cancer cell lines to evaluate the ability of PFAS exposure to affect survival fraction following treatment with carboplatin. This is the first study to demonstrate that, at sub-cytotoxic concentrations, select PFAS and PFAS mixtures increased survival fraction in ovarian cancer cells following carboplatin treatment, indicative of platinum resistance. A concomitant increase in mitochondrial membrane potential, measured by the JC-1 fluorescent probe, was observed in PFAS-exposed and PFAS + carboplatin-treated cells, suggesting a potential role for altered mitochondrial function that requires further investigation.
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Affiliation(s)
- Brittany P. Rickard
- Curriculum in Toxicology & Environmental Medicine, University of North Carolina School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (B.P.R.); (S.E.F.)
| | - Xianming Tan
- Department of Biostatistics, University of North Carolina School of Public Health, Chapel Hill, NC 27599, USA;
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA
| | - Suzanne E. Fenton
- Curriculum in Toxicology & Environmental Medicine, University of North Carolina School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (B.P.R.); (S.E.F.)
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Imran Rizvi
- Curriculum in Toxicology & Environmental Medicine, University of North Carolina School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (B.P.R.); (S.E.F.)
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA
- Center for Environmental Health and Susceptibility, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; North Carolina State University, Raleigh, NC 27606, USA
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