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Jiao B, Jiang H, Liu S, Wang Y, Chen Y, Duan H, Niu Y, Shen M, Wang H, Dai Y. Unveiling the mechanisms of trichloroethylene hypersensitivity syndrome: Exploring the role of connexin 43 gap junctions in severe skin damage. Food Chem Toxicol 2024; 187:114594. [PMID: 38485042 DOI: 10.1016/j.fct.2024.114594] [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: 02/06/2024] [Revised: 03/04/2024] [Accepted: 03/11/2024] [Indexed: 03/23/2024]
Abstract
Trichloroethylene (TCE), extensively used as an organic solvent in various industrial applications, has been identified as a causative factor in inducing hypersensitivity syndrome (THS). Currently, there is no specific treatment for THS, and most patients experience serious adverse outcomes due to extensive skin damage leading to severe infection. However, the pathogenesis of THS-associated skin damage remains unclear. This study aims to elucidate the mechanism underlying skin damage from the perspective of intercellular communication and gap junctions in THS. Our results verified that hyperactivation of connexin43 gap junctions, caused by the aberrantly elevated expression of connexin43, triggers a bystander effect that promotes apoptosis and inflammation in THS via the TNF-TNFRSF1B and mitochondria-associated pathways. Additionally, we identified the gap junction inhibitor Carbenoxolone disodium (CBX) as a promising agent for the treatment of skin damage in THS. CBX protects against inflammatory cell infiltration in the skin and decreases immune cell imbalance in the peripheral blood of THS mice. Furthermore, CBX reduces connexin43 expression, apoptosis and inflammation in THS mice. The study reveals new insights into the mechanisms underlying TCE-induced skin damage, offering a potential treatment strategy for the development of effective therapies targeting severe dermatitis induced by chemical exposure.
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Affiliation(s)
- Bo Jiao
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, 100050, China
| | - Haiqin Jiang
- Institute of Dermatology, Chinese Academy of Medical Sciences, National Center for STD and Leprosy Control, China CDC, Nanjing, China
| | - Shuai Liu
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, 100050, China
| | - Yican Wang
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, 100050, China
| | - Yuanyuan Chen
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China
| | - Huawei Duan
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, 100050, China
| | - Yong Niu
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, 100050, China
| | - Meili Shen
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, 100050, China
| | - Hongsheng Wang
- Institute of Dermatology, Chinese Academy of Medical Sciences, National Center for STD and Leprosy Control, China CDC, Nanjing, China
| | - Yufei Dai
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, 100050, China; China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China.
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Zhang X, Xie H, Liu Z, Zhang J, Deng L, Wu Q, Duan Y, Wang F, Wu C, Zhu Q. HMGB 1 acetylation mediates trichloroethylene-induced immune kidney injury by facilitating endothelial cell-podocyte communication. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 259:115042. [PMID: 37216866 PMCID: PMC10250816 DOI: 10.1016/j.ecoenv.2023.115042] [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: 02/04/2023] [Revised: 05/13/2023] [Accepted: 05/17/2023] [Indexed: 05/24/2023]
Abstract
More and more clinical evidence shows that occupational medicamentose-like dermatitis due to trichloroethylene (OMDT) patients often present immune kidney damage. However, the exact mechanisms of cell-to-cell transmission in TCE-induced immune kidney damage remain poorly understood. The present study aimed to explore the role of high mobility group box-1 (HMGB 1) in glomerular endothelial cell-podocyte transmission. 17 OMDT patients and 34 controls were enrolled in this study. We observed that OMDT patients had renal function injury, endothelial cell activation and podocyte injury, and these indicators were associated with serum HMGB 1. To gain mechanistic insight, a TCE-sensitized BALB/c mouse model was established under the interventions of sirtuin 1 (SIRT 1) activator SRT 1720 (0.1 ml, 5 mg/kg) and receptor for advanced glycation end products (RAGE) inhibitor FPS-ZM 1 (0.1 ml, 1.5 mg/kg). We identified HMGB 1 acetylation and its endothelial cytoplasmic translocation following TCE sensitization, but SRT 1720 abolished the process. RAGE was located on podocytes and co-precipitated with extracellular acetylated HMGB 1, promoting podocyte injury, while SRT 1720 and FPS-ZM 1 both alleviated podocyte injury. The results demonstrate that interventions to upstream and downstream pathways of HMGB 1 may weaken glomerular endothelial cell-podocyte transmission, thereby alleviating TCE-induced immune renal injury.
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Affiliation(s)
- Xuesong Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China
| | - Haibo Xie
- Department of Nephropathy, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Zhibing Liu
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China; Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Jiaxiang Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China
| | - Lihua Deng
- Shenzhen Prevention and Treatment Center for Occupational Disease, Shenzhen, China
| | - Qifeng Wu
- Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou, Guangdong, China
| | - Yuansheng Duan
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China
| | - Feng Wang
- Department of Dermatology, Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Changhao Wu
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom.
| | - Qixing Zhu
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China; Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.
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Rodríguez-Romero BI, Domínguez-Rojas M, Medel-Flores MO, Pérez-Vielma NM, Mendoza-Garrido M, Sánchez-Monroy V. Evaluation of Cytochrome P4502E1 mRNA Expression and Its Effects in Antioxidant Defenses, and Cell Toxicity in Printing Workers. Asian Pac J Cancer Prev 2022; 23:3253-3259. [PMID: 36308346 PMCID: PMC9924330 DOI: 10.31557/apjcp.2022.23.10.3253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Indexed: 02/18/2023] Open
Abstract
BACKGROUND Cytochrome P4502E1 (CYP2E1) metabolizes environmental toxins, however, compound metabolism can produce oxidative stress, causing in-cell toxicity and sometimes transformation. AIM To evaluate CYP2E1 gene expression and its effects in antioxidant defenses, and cell toxicity in printing workers. METHODS The hierarchical method of health and chemical risk was used to evaluate chemical exposure in workplace. Blood samples and buccal epithelial cells were obtained from printing workers, and workers without any history of occupational exposure to chemicals (control group). Gene expression of CYP2E1, and antioxidant enzymes Superoxide dismutase (SOD) and Catalase (CAT) from leukocytes were evaluated. Hematic analysis and cell-free DNA from plasma were analyzed. Frequencies of cells with micronuclei (MN) and nuclear abnormalities from buccal epithelial cells were explored. RESULTS Evaluation of chemical exposure in working place demonstrated that ethyl alcohol, isopropyl alcohol, and isophorone represent 91% of the accumulated potential risk. CYP2E1 expression showed a 2.5-fold overexpression in the printing workers compared to the control group. SOD expression showed a 0.5-fold lower level in the printing workers than the control group, and CAT expression showed no differences between groups. Lower red blood cell and platelet values were detected in the printing workers than in the control group, and cell-free DNA plasma concentration was 3-fold higher in the printing workers than in the control group. The printing workers showed a higher frequency of cells with MN and nuclear anomalies than the control group. CONCLUSION CYP2E1 overexpression triggers antioxidant defenses and toxic cell effects in printing workers.
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Affiliation(s)
| | - Maritere Domínguez-Rojas
- Faculty of Higher Studies Cuautitlán, National Autonomous University of Mexico, Izcalli, State of Mexico, Mexico.
| | | | - Nadia Mabel Pérez-Vielma
- Interdisciplinary Center for Health Sciences Santo Tomas Unit, National Polytechnic Institute, Mexico City, Mexico.
| | - Mario Mendoza-Garrido
- National School of Medicine and Homeopathy, National Polytechnic Institute, Mexico City, Mexico.
| | - Virginia Sánchez-Monroy
- Superior School of Medicine, National Polytechnic Institute, Mexico City, Mexico..,For Correspondence:
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Wang G, Zhang J, Dai Y, Xu Q, Zhu Q. Local renal complement activation mediates immune kidney injury by inducing endothelin-1 signalling and inflammation in trichloroethylene-sensitised mice. Toxicol Lett 2020; 333:130-139. [PMID: 32763311 DOI: 10.1016/j.toxlet.2020.07.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 07/30/2020] [Accepted: 07/31/2020] [Indexed: 12/21/2022]
Abstract
Trichloroethylene (TCE) is a widely used industrial solvent that causes trichloroethylene hypersensitivity syndrome (THS) with multi-system damage, including kidney injury. Clinical studies have shown that the complement system is important for TCE-induced kidney injury. Our previous study found excessive deposition of complement C3, mainly on the glomerulus, indicating that local renal complement is activated after TCE sensitisation. However, whether local renal complement activation mediates TCE-induced immune kidney injury and the underlying mechanisms remain unknown. Therefore, we established a TCE percutaneous sensitisation BALB/c mouse model to explore the mechanisms by pretreating with or without the complement activation antagonist, cathepsin L inhibitor (CatLi). As expected, more C3 and C3a were detected mainly on glomerulus of TCE positive sensitisation (TCE+) mice. Renal dysfunction and pathological damage were also clearly observed in TCE+ mice. Moreover, the mRNA and protein expression of ET-1 increased significantly with local renal complement activation after TCE sensitisation, leading to cytokines release and inflammation. In addition, activation of p38MAPK and NF-κBp65 pathways were detected in kidneys of TCE+ mice, and CatLi pretreatment decreased these changes through complement activation antagonisation. Our research uncovered a novel role of local renal complement activation during immune kidney injury after TCE sensitisation through induction of ET-1 signalling and inflammation.
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Affiliation(s)
- Guoxiu Wang
- Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China; Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Jiaxiang Zhang
- Department of Occupational Health and Environment Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Yuying Dai
- Department of Occupational Health and Environment Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Qiongying Xu
- Department of Occupational Health and Environment Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Qixing Zhu
- Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.
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