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Zheng J, Li Y, Zhang T, Fu Y, Long P, Gao X, Wang Z, Guan Z, Qi X, Hong W, Xiao Y. Endoplasmic reticulum stress and autophagy in cerebral ischemia/reperfusion injury: PERK as a potential target for intervention. Neural Regen Res 2025; 20:1455-1466. [PMID: 39075912 DOI: 10.4103/nrr.nrr-d-23-00794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 11/21/2023] [Indexed: 07/31/2024] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202505000-00028/figure1/v/2024-07-28T173839Z/r/image-tiff Several studies have shown that activation of unfolded protein response and endoplasmic reticulum (ER) stress plays a crucial role in severe cerebral ischemia/reperfusion injury. Autophagy occurs within hours after cerebral ischemia, but the relationship between ER stress and autophagy remains unclear. In this study, we established experimental models using oxygen-glucose deprivation/reoxygenation in PC12 cells and primary neurons to simulate cerebral ischemia/reperfusion injury. We found that prolongation of oxygen-glucose deprivation activated the ER stress pathway protein kinase-like endoplasmic reticulum kinase (PERK)/eukaryotic translation initiation factor 2 subunit alpha (eIF2α)-activating transcription factor 4 (ATF4)-C/EBP homologous protein (CHOP), increased neuronal apoptosis, and induced autophagy. Furthermore, inhibition of ER stress using inhibitors or by siRNA knockdown of the PERK gene significantly attenuated excessive autophagy and neuronal apoptosis, indicating an interaction between autophagy and ER stress and suggesting PERK as an essential target for regulating autophagy. Blocking autophagy with chloroquine exacerbated ER stress-induced apoptosis, indicating that normal levels of autophagy play a protective role in neuronal injury following cerebral ischemia/reperfusion injury. Findings from this study indicate that cerebral ischemia/reperfusion injury can trigger neuronal ER stress and promote autophagy, and suggest that PERK is a possible target for inhibiting excessive autophagy in cerebral ischemia/reperfusion injury.
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Affiliation(s)
- Ju Zheng
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou Province, China
- Guizhou Center for Disease Control and Prevention, Guiyang, Guizhou Province, China
| | - Yixin Li
- Department of Histology and Embryology, Guizhou Medical University, Guiyang, Guizhou Province, China
| | - Ting Zhang
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou Province, China
| | - Yanlin Fu
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou Province, China
| | - Peiyan Long
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou Province, China
| | - Xiao Gao
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou Province, China
| | - Zhengwei Wang
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou Province, China
| | - Zhizhong Guan
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou Province, China
| | - Xiaolan Qi
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou Province, China
- Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guiyang, Guizhou Province, China
| | - Wei Hong
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou Province, China
- Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guiyang, Guizhou Province, China
| | - Yan Xiao
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou Province, China
- Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guiyang, Guizhou Province, China
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2
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Liu C, Zhang A. p53-Mediated Mitochondrial Translocation of EI24 Triggered by ER Stress Plays an Important Role in Arsenic-Induced Liver Damage via Activating Mitochondrial Apoptotic Pathway. Biol Trace Elem Res 2024; 202:3967-3979. [PMID: 38017236 DOI: 10.1007/s12011-023-03967-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 11/16/2023] [Indexed: 11/30/2023]
Abstract
Chronic arsenic poisoning is a public health problem worldwide. In addition to skin lesions, the detrimental effect of arsenic poisoning on liver damage is one of the major issues. Our previous studies demonstrated that endoplasmic reticulum (ER) stress and p53 were associated with arsenic-induced liver damage. Literature has shown that EI24 is involved in hepatocyte hypertrophy; however, the underlying role and mechanism in arsenic-induced liver damage have not been fully elucidated. In this study, we explored the role of ER stress, p53, and EI24 as well as the regulatory relationship in arsenic poisoning populations and L-02 cells treated with distinct concentration NaAsO2 (2.5, 5, 10, and 20 μM). Results showed that as with arsenic dose increment, expression levels of ER stress key proteins GRP78, ATF4, and CHOP were significantly enhanced. Additionally, p53 expression in nucleus, p53 phosphorylation at Ser15 and Ser1392, and p53 acetylation at lys382 were significantly increased in NaAsO2-treated L-02 cells. ER stress inhibitor 4-phenylbutyric acid (4-PBA) decreased the expression of p53 phosphorylation at Ser 392, p53 acetylation at lys382, and p53 expression in nucleus. Additionally, in 5 μM NaAsO2 condition, p53 inhibitor pifithrin-α (PFT-α) aggravated 5 μM NaAsO2-induced GRP78, ATF4, and CHOP expressions, cell apoptosis, and protein-SH consumption. But in 20 μM NaAsO2 condition, PFT-α attenuated NaAsO2-induced cell apoptosis. Further results showed that 20 μM NaAsO2 facilitated translocation of EI24 from ER to mitochondrion and interaction with VDAC2, leading to activate mitochondrial apoptotic pathway, but not observed in the 5-μM NaAsO2 group. Moreover, PFT-α and 4-PBA inhibited 20 μM NaAsO2-induced EI24 expression in mitochondrion. Collectively, our results indicated that arsenic induced p53 activation via ER stress, under relatively low NaAsO2 concentration, NaAsO2-triggered p53 activation protected cells from apoptosis by alleviating ER stress. Another finding was that under relatively high NaAsO2 concentration, NaAsO2-activated p53 facilitated EI24 mitochondrial translocation and caused mitochondrial permeability increase, which represented a switch of p53 from a benefit role to pro-apoptosis function in NaAsO2-treated cells. The study contributed to in-depth understanding the mechanism of arsenic-induced liver damage and providing potential clues for following study.
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Affiliation(s)
- Chunyan Liu
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Toxicology, Guizhou Medical University, Guiyang, 550025, Guizhou Province, China
| | - Aihua Zhang
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Toxicology, Guizhou Medical University, Guiyang, 550025, Guizhou Province, China.
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3
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Ni L, Yang L, Lin Y. Recent progress of endoplasmic reticulum stress in the mechanism of atherosclerosis. Front Cardiovasc Med 2024; 11:1413441. [PMID: 39070554 PMCID: PMC11282489 DOI: 10.3389/fcvm.2024.1413441] [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: 05/01/2024] [Accepted: 06/26/2024] [Indexed: 07/30/2024] Open
Abstract
The research progress of endoplasmic reticulum (ER) stress in atherosclerosis (AS) is of great concern. The ER, a critical cellular organelle, plays a role in important biological processes including protein synthesis, folding, and modification. Various pathological factors may cause ER stress, and sustained or excessive ER stress triggers the unfolded protein response, ultimately resulting in apoptosis and disease. Recently, researchers have discovered the importance of ER stress in the onset and advancement of AS. ER stress contributes to the occurrence of AS through different pathways such as apoptosis, inflammatory response, oxidative stress, and autophagy. Therefore, this review focuses on the mechanisms of ER stress in the development of AS and related therapeutic targets, which will contribute to a deeper understanding of the disease's pathogenesis and provide novel strategies for preventing and treating AS.
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Affiliation(s)
| | | | - Yuanyuan Lin
- Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
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Wang R, Gong W, Jiang Y, Yin Q, Wang Z, Wu J, Zhang M, Li M, Liu Y, Wang J, Chen Y, Ji Y. Fluoride exposure during puberty induces testicular impairment via ER stress-triggered apoptosis in mice. Food Chem Toxicol 2024; 189:114773. [PMID: 38823497 DOI: 10.1016/j.fct.2024.114773] [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: 03/23/2024] [Revised: 05/15/2024] [Accepted: 05/28/2024] [Indexed: 06/03/2024]
Abstract
Fluoride, a ubiquitous environmental compound, carries significant health risks at excessive levels. This study investigated the reproductive toxicity of fluoride exposure during puberty in mice, focusing on its impact on testicular development, spermatogenesis, and underlying mechanisms. The results showed that fluoride exposure during puberty impaired testicular structure, induced germ cell apoptosis, and reduced sperm counts in mice. Additionally, the SOD activity and GSH content were significantly decreased, while MDA content was significantly elevated in the NaF group. Immunohistochemistry showed an increase in the number of cells positive for GRP78, a key ER stress marker. Moreover, qRT-PCR and Western blot analyses confirmed the upregulation of both Grp78 mRNA and protein expression, as well as increased mRNA expression of other ER stress-associated genes (Grp94, chop, Atf6, Atf4, and Xbp1) and enhanced protein expression of phosphorylated PERK, IRE1α, eIF2α, JNK, XBP-1, ATF-6α, ATF-4, and CHOP. In conclusion, our findings demonstrate that fluoride exposure during puberty impairs testicular structure, induces germ cell apoptosis, and reduces sperm counts in mice. ER stress may participate in testicular cell apoptosis, and contribute to the testicular damage and decreased sperm counts induced by fluoride.
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Affiliation(s)
- Rong Wang
- Department of Health Inspection and Quarantine, School of Public Health, Anhui Medical University, Hefei, Anhui, China; School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China
| | - Wenjing Gong
- Department of Health Inspection and Quarantine, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Yumeng Jiang
- Department of Health Inspection and Quarantine, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Qizi Yin
- Department of Health Inspection and Quarantine, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Ziyue Wang
- Department of Health Inspection and Quarantine, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Jie Wu
- Department of Health Inspection and Quarantine, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Mingming Zhang
- Department of Health Inspection and Quarantine, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Mengyuan Li
- Department of Health Inspection and Quarantine, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Yehao Liu
- Department of Health Inspection and Quarantine, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Juan Wang
- Department of Health Inspection and Quarantine, School of Public Health, Anhui Medical University, Hefei, Anhui, China.
| | - Yuanhua Chen
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China.
| | - Yanli Ji
- Department of Health Inspection and Quarantine, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei Anhui, China.
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5
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Thi Thanh Nguyen N, Yoon Lee S. Celecoxib and sulindac sulfide elicit anticancer effects on PIK3CA-mutated head and neck cancer cells through endoplasmic reticulum stress, reactive oxygen species, and mitochondrial dysfunction. Biochem Pharmacol 2024; 224:116221. [PMID: 38641308 DOI: 10.1016/j.bcp.2024.116221] [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: 12/01/2023] [Revised: 04/01/2024] [Accepted: 04/16/2024] [Indexed: 04/21/2024]
Abstract
Gain-of-function mutation in the phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K) catalytic subunit alpha gene (PIK3CA) is a significant factor in head and neck cancer (HNC). Patients with HNC harboring PIK3CA mutations receive therapeutic benefits from the use of non-steroidal anti-inflammatory drugs (NSAIDs). However, the molecular mechanisms underlying these effects remain unknown. Here, we examined the Detroit562 and FaDu cell lines as HNC models with and without a hyperactive PIK3CA mutation (H1047R), respectively, regarding their possible distinct responses to the NSAIDs celecoxib and sulindac sulfide (SUS). Detroit562 cells exhibited relatively high PI3K/Akt pathway-dependent cyclooxygenase-2 (COX-2) expression, associated with cell proliferation. Celecoxib treatment restricted cell proliferation and upregulated endoplasmic reticulum (ER) stress-related markers, including GRP78, C/EBP-homologous protein, activating transcription factor 4, death receptor 5, and reactive oxygen species (ROS). These effects were much stronger in Detroit562 cells than in FaDu cells and were largely COX-2-independent. SUS treatment yielded similar results. Salubrinal (an ER stress inhibitor) and N-acetyl-L-cysteine (a ROS scavenger) prevented NSAID-induced ROS generation and ER stress, respectively, indicating crosstalk between ER and oxidative stress. In addition, celecoxib and/or SUS elevated cleaved caspase-3 levels, Bcl-2-associated X protein/Bcl-2-interacting mediator of cell death expression, and mitochondrial damage, which was more pronounced in Detroit562 than in FaDu cells. Salubrinal and N-acetyl-L-cysteine attenuated celecoxib-induced mitochondrial dysfunction. Collectively, our results suggest that celecoxib and SUS efficiently suppress activating PIK3CA mutation-harboring HNC progression by inducing ER and oxidative stress and mitochondrial dysfunction, leading to apoptotic cell death, further supporting NSAID treatment as a useful strategy for oncogenic PIK3CA-mutated HNC therapy.
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Affiliation(s)
- Nga Thi Thanh Nguyen
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Gyeonggi, Republic of Korea
| | - Sang Yoon Lee
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Gyeonggi, Republic of Korea; Institute of Medical Science, Ajou University School of Medicine, Suwon, Gyeonggi, Republic of Korea.
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Ma L, Li Z, Yue D, Qu J, Zhang P, Zhang S, Huang K, Zou Y, Wang C, Chen X. Mild endoplasmic reticulum stress alleviates FB1-triggered intestinal pyroptosis via the Sec62-PERK pathway. Cell Biol Toxicol 2024; 40:33. [PMID: 38769285 PMCID: PMC11106095 DOI: 10.1007/s10565-024-09868-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 04/23/2024] [Indexed: 05/22/2024]
Abstract
Fumonisin B1 (FB1), a water-soluble mycotoxin released by Fusarium moniliforme Sheld, is widely present in corn and its derivative products, and seriously endangers human life and health. Recent studies have reported that FB1 can lead to pyroptosis, however, the mechanisms by which FB1-induced pyroptosis remain indistinct. In the present study, we aim to investigate the mechanisms of pyroptosis in intestinal porcine epithelial cells (IPEC-J2) and the relationship between FB1-induced endoplasmic reticulum stress (ERS) and pyroptosis. Our experimental results showed that the pyroptosis protein indicators in IPEC-J2 were significantly increased after exposure to FB1. The ERS markers, including glucose-regulated Protein 78 (GRP78), PKR-like ER kinase protein (PERK), and preprotein translocation factor (Sec62) were also significantly increased. Using small interfering RNA silencing of PERK or Sec62, the results demonstrated that upregulation of Sec62 activates the PERK pathway, and activation of the PERK signaling pathway is upstream of FB1-induced pyroptosis. After using the ERS inhibitor 4-PBA reduced the FB1-triggered intestinal injury by the Sec62-PERK pathway. In conclusion, we found that FB1 induced pyroptosis by upregulating Sec62 to activate the PERK pathway, and mild ERS alleviates FB1-triggered damage. It all boils down to one fact, the study provides a new perspective for further, and improving the toxicological mechanism of FB1.
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Affiliation(s)
- Li Ma
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
- Institute of Nutritional and Metabolic Disorders in Domestic Animals and Fowls, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Zhengqing Li
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
- Institute of Nutritional and Metabolic Disorders in Domestic Animals and Fowls, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Dongmei Yue
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
- Institute of Nutritional and Metabolic Disorders in Domestic Animals and Fowls, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Jie Qu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
- Institute of Nutritional and Metabolic Disorders in Domestic Animals and Fowls, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Ping Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
- Institute of Nutritional and Metabolic Disorders in Domestic Animals and Fowls, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Shuxia Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
- Institute of Nutritional and Metabolic Disorders in Domestic Animals and Fowls, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Kehe Huang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
- Institute of Nutritional and Metabolic Disorders in Domestic Animals and Fowls, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Yinuo Zou
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
- Institute of Nutritional and Metabolic Disorders in Domestic Animals and Fowls, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Chunfeng Wang
- College of Animal Medicine, Jilin Agricultural University, Changchun, 130118, Jilin Province, China
| | - Xingxiang Chen
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.
- Institute of Nutritional and Metabolic Disorders in Domestic Animals and Fowls, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.
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Ni L, Zhu X, Zhao Q, Shen Y, Tao L, Zhang J, Lin H, Zhuge W, Cho YC, Cui R, Zhu W. Dihydroartemisinin, a potential PTGS1 inhibitor, potentiated cisplatin-induced cell death in non-small cell lung cancer through activating ROS-mediated multiple signaling pathways. Neoplasia 2024; 51:100991. [PMID: 38507887 PMCID: PMC10965827 DOI: 10.1016/j.neo.2024.100991] [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: 01/05/2024] [Revised: 03/12/2024] [Accepted: 03/14/2024] [Indexed: 03/22/2024]
Abstract
Dihydroartemisinin (DHA) exerts an anti-tumor effect in multiple cancers, however, the molecular mechanism of DHA and whether DHA facilitates the anti-tumor efficacy of cisplatin in non-small cell lung cancer (NSCLC) are unclear. Here, we found that DHA potentiated the anti-tumor effects of cisplatin in NSCLC cells by stimulating reactive oxygen species (ROS)-mediated endoplasmic reticulum (ER) stress, C-Jun-amino-terminal kinase (JNK) and p38 MAPK signaling pathways both in vitro and in vivo. Of note, we demonstrated for the first time that DHA inhibits prostaglandin G/H synthase 1 (PTGS1) expression, resulting in enhanced ROS production. Importantly, silencing PTGS1 sensitized DHA-induced cell death by increasing ROS production and activating ER-stress, JNK and p38 MAPK signaling pathways. In summary, our findings provided new experimental basis and therapeutic prospect for the combined therapy with DHA and cisplatin in some NSCLC patients.
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Affiliation(s)
- Lianli Ni
- Cellular and Molecular Biology Laboratory, Affiliated Zhoushan Hospital of Wenzhou Medical University, Zhoushan, Zhejiang 316020, China;; Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China;; Research Institute of Pharmaceutical Sciences, College of Pharmacy, Chonnam National University, Gwangju 61186, South Korea
| | - Xinping Zhu
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Qi Zhao
- Cellular and Molecular Biology Laboratory, Affiliated Zhoushan Hospital of Wenzhou Medical University, Zhoushan, Zhejiang 316020, China;; Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Yiwei Shen
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Lu Tao
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Ji Zhang
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Han Lin
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Weishan Zhuge
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Young-Chang Cho
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Chonnam National University, Gwangju 61186, South Korea.
| | - Ri Cui
- Cellular and Molecular Biology Laboratory, Affiliated Zhoushan Hospital of Wenzhou Medical University, Zhoushan, Zhejiang 316020, China;; Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China;.
| | - Wangyu Zhu
- Cellular and Molecular Biology Laboratory, Affiliated Zhoushan Hospital of Wenzhou Medical University, Zhoushan, Zhejiang 316020, China;; Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China;.
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8
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Wadgaonkar P, Wang Z, Chen F. Endoplasmic reticulum stress responses and epigenetic alterations in arsenic carcinogenesis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 347:123565. [PMID: 38373625 DOI: 10.1016/j.envpol.2024.123565] [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: 07/13/2023] [Revised: 11/21/2023] [Accepted: 02/11/2024] [Indexed: 02/21/2024]
Abstract
Arsenic is a well-known human carcinogen whose environmental exposure via drinking water, food, and air impacts millions of people across the globe. Various mechanisms of arsenic carcinogenesis have been identified, ranging from damage caused by excessive production of free radicals and epigenetic alterations to the generation of cancer stem cells. A growing body of evidence supports the critical involvement of the endoplasmic stress-activated unfolded protein response (UPR) in promoting as well as suppressing cancer development/progression. Various in vitro and in vivo models have also demonstrated that arsenic induces the UPR via activation of the PERK, IRE1α, and ATF6 proteins. In this review, we discuss the mechanisms of arsenic-induced endoplasmic reticulum stress and the role of each UPR pathway in the various cancer types with a focus on the epigenetic regulation and function of the ATF6 protein. The importance of UPR in arsenic carcinogenesis and cancer stem cells is a relatively new area of research that requires additional investigations via various omics-based and computational tools. These approaches will provide interesting insights into the mechanisms of arsenic-induced cancers for prospective target identification and development of novel anti-cancer therapies.
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Affiliation(s)
- Priya Wadgaonkar
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, 259 Mack Avenue, Detroit, MI, 48201, USA
| | - Ziwei Wang
- Stony Brook Cancer Center, Department of Pathology, Renaissance School of Medicine, Stony Brook University, Lauterbur Drive, Stony Brook, NY, 11794, USA
| | - Fei Chen
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, 259 Mack Avenue, Detroit, MI, 48201, USA; Stony Brook Cancer Center, Department of Pathology, Renaissance School of Medicine, Stony Brook University, Lauterbur Drive, Stony Brook, NY, 11794, USA.
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Ma M, Zhang J, Li S, Zhang M, Chen W, Li L, Li S. LINC00942 Alleviates NaAsO 2-induced Apoptosis by Promoting GSH Synthesis Through Targeting miR-214-5p. Biol Trace Elem Res 2024:10.1007/s12011-024-04167-8. [PMID: 38578483 DOI: 10.1007/s12011-024-04167-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 03/28/2024] [Indexed: 04/06/2024]
Abstract
The mechanism of arsenic-induced liver toxicity is not fully understood. This study aimed to investigate the role of LINC00942 in arsenic-induced hepatotoxicity by regulating miR-214-5p. As the exposure dose of NaAsO2 gradually increases, cell viability, intracellular GSH content, ΔΨm, and the protein levels of GCLC and GCLM were reduced significantly. Apoptosis rate, ROS, and expression of apoptosis-related and NF-κB pathway proteins increased. The expression of LINC00942 was increased, while the expression of miR-214-5p was decreased. After suppressing LINC00942 levels, NaAsO2 exposure further decreased cell viability, intracellular GSH content, ΔΨm, GCLC protein, and miR-214-5p expression. The apoptosis rate, ROS, and apoptosis-related and NF-κB pathway proteins further increased. miR-214-5p is targeted and negatively regulated by LINC00942. After miR-214-5p was overexpressed, NaAsO2 further decreased cell viability, intracellular GSH content, ΔΨm, and GCLC protein expression compared to NaAsO2 exposure. The apoptosis rate, ROS, apoptosis-related and NF-κB pathway proteins p65, and IKKβ were higher than those exposed to NaAsO2. LINC00942 inhibitor along with miR-214-5p inhibitor combined with NaAsO2 treatment resulted in increased cell viability, GSH, Bcl-2, and GCLC protein expression and decreased apoptosis rate, apoptosis related, p65, IKKβ protein, and ΔΨm, as compared to the combined NaAsO2 and si LINC00942 group. NaAsO2 exposure induces oxidative damage and apoptosis in LX-2 cells by activating NF-κB and inhibiting GSH synthesis. During this process, the expression level of LINC00942 increases, targeting to reduce the level of miR-214-5p, then weakening the effect of NaAsO2 on NF-κB, thereby alleviating cellular oxidative damage and playing a protective role.
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Affiliation(s)
- Mingxiao Ma
- Department of Preventive Medicine, School of Medicine, Shihezi University, Shihezi, Xinjiang, China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, China
| | - Jingyi Zhang
- Department of Preventive Medicine, School of Medicine, Shihezi University, Shihezi, Xinjiang, China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, China
| | - Sheng Li
- Department of Preventive Medicine, School of Medicine, Shihezi University, Shihezi, Xinjiang, China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, China
| | - Mengyao Zhang
- Department of Preventive Medicine, School of Medicine, Shihezi University, Shihezi, Xinjiang, China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, China
| | - Weixin Chen
- Department of Preventive Medicine, School of Medicine, Shihezi University, Shihezi, Xinjiang, China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, China
| | - Linzhi Li
- Department of Preventive Medicine, School of Medicine, Shihezi University, Shihezi, Xinjiang, China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, China
| | - Shugang Li
- Department of Maternal and Children Health, School of Public Health, Capital Medical University, Beijing, 100069, China.
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10
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Xu W, Wang H, Sun Q, Hua T, Bai J, Zhang Q, Liu Q, Ni X. TXNIP-NLRP3-GSDMD axis-mediated inflammation and pyroptosis of islet β-cells is involved in cigarette smoke-induced hyperglycemia, which is alleviated by andrographolide. ENVIRONMENTAL TOXICOLOGY 2024; 39:1415-1428. [PMID: 37987454 DOI: 10.1002/tox.24046] [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: 09/18/2023] [Revised: 10/25/2023] [Accepted: 10/31/2023] [Indexed: 11/22/2023]
Abstract
Epidemiologic surveys have indicated that cigarette smoking is an important risk factor for diabetes, but its mechanisms remain unclear. Andrographolide, an herb traditionally utilized in medicine, provides anti-inflammatory benefits for various diseases. In the present work, 265 patients with Type 2 diabetes (T2D) were investigated, and male C57BL/6 mice were exposed to cigareete smoke (CS) and/or to intraperitoneally injected andrographolide for 3 months. To elucidate the mechanism of CS-induced hyperglycemia and the protective mechanism of andrographolide, MIN6 cells were exposed to cigarette smoke extract (CSE) and/or to andrographolide. Our data from 265 patients with T2D showed that urinary creatinine and serum inflammatory cytokines (interleukin 6 (IL-6), IL-8, IL-1β, and tumor necrosis factor α (TNF-α)) increased with smoking pack-years. In a mouse model, CS induced hyperglycemia, decreased insulin secretion, and elevated inflammation and pyroptosis in β-cells of mice. Treatment of mice with andrographolide preserved pancreatic function by reducing the expression of inflammatory cytokines; the expression of TXNIP, NLRP3, cleaved caspase 1, IL-1β; and the N-terminal of gasdermin D (GSDMD) protein. For MIN6 cells, CSE caused increasing secretion of the inflammatory cytokines IL-6 and IL-1β, and the expression of TXNIP and pyroptosis-related proteins; however, andrographolide alleviated these changes. Furthermore, silencing of TXNIP showed that the blocking effect of andrographolide may be mediated by TXNIP. In sum, our results indicate that CS induces hyperglycemia through TXNIP-NLRP3-GSDMD axis-mediated inflammation and pyroptosis of islet β-cells and that andrographolide is a potential therapeutic agent for CS-induced hyperglycemia.
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Affiliation(s)
- Wenchao Xu
- The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, Changzhou, People's Republic of China
- Changzhou Center for Disease Control and Prevention, Changzhou Advanced Institute of Public Health, Nanjing Medical University, Changzhou, People's Republic of China
| | - Hailan Wang
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, People's Republic of China
- Environmental health effects and risk assessment Key Laboratory of Luzhou, School of Public Health, Southwest Medical University, Luzhou, People's Republic of China
| | - Qian Sun
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, People's Republic of China
| | - Tianqi Hua
- Changzhou Center for Disease Control and Prevention, Changzhou Advanced Institute of Public Health, Nanjing Medical University, Changzhou, People's Republic of China
| | - Jun Bai
- Environmental health effects and risk assessment Key Laboratory of Luzhou, School of Public Health, Southwest Medical University, Luzhou, People's Republic of China
| | - Qingbi Zhang
- Environmental health effects and risk assessment Key Laboratory of Luzhou, School of Public Health, Southwest Medical University, Luzhou, People's Republic of China
| | - Qizhan Liu
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, People's Republic of China
| | - Xinye Ni
- The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, Changzhou, People's Republic of China
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11
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Gao L, Peng L, Wang J, Zhang JH, Xia Y. Mitochondrial stress: a key role of neuroinflammation in stroke. J Neuroinflammation 2024; 21:44. [PMID: 38321473 PMCID: PMC10845693 DOI: 10.1186/s12974-024-03033-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 01/27/2024] [Indexed: 02/08/2024] Open
Abstract
Stroke is a clinical syndrome characterized by an acute, focal neurological deficit, primarily caused by the occlusion or rupture of cerebral blood vessels. In stroke, neuroinflammation emerges as a pivotal event contributing to neuronal cell death. The occurrence and progression of neuroinflammation entail intricate processes, prominently featuring mitochondrial dysfunction and adaptive responses. Mitochondria, a double membrane-bound organelle are recognized as the "energy workshop" of the body. Brain is particularly vulnerable to mitochondrial disturbances due to its high energy demands from mitochondria-related energy production. The interplay between mitochondria and neuroinflammation plays a significant role in the pathogenesis of stroke. The biological and pathological consequences resulting from mitochondrial stress have substantial implications for cerebral function. Mitochondrial stress serves as an adaptive mechanism aimed at mitigating the stress induced by the import of misfolded proteins, which occurs in response to stroke. This adaptive response involves a reduction in misfolded protein accumulation and overall protein synthesis. The influence of mitochondrial stress on the pathological state of stroke is underscored by its capacity to interact with neuroinflammation. The impact of mitochondrial stress on neuroinflammation varies according to its severity. Moderate mitochondrial stress can bolster cellular adaptive defenses, enabling cells to better withstand detrimental stressors. In contrast, sustained and excessive mitochondrial stress detrimentally affects cellular and tissue integrity. The relationship between neuroinflammation and mitochondrial stress depends on the degree of mitochondrial stress present. Understanding its role in stroke pathogenesis is instrumental in excavating the novel treatment of stroke. This review aims to provide the evaluation of the cross-talk between mitochondrial stress and neuroinflammation within the context of stroke. We aim to reveal how mitochondrial stress affects neuroinflammation environment in stroke.
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Affiliation(s)
- Ling Gao
- Department of Neurosurgery, Xiangya School of Medicine, Affiliated Haikou Hospital, Central South University, Haikou, 570208, China
- Department of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Li Peng
- Department of Ophthalmology, Xiangya School of Medicine, Affiliated Haikou Hospital, Central South University, Haikou, 570208, China
| | - Jian Wang
- Department of Neurosurgery, Xiangya School of Medicine, Affiliated Haikou Hospital, Central South University, Haikou, 570208, China
| | - John H Zhang
- Department of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA.
- Department of Neurosurgery and Anesthesiology, Loma Linda University Medical Center, Loma Linda, CA, 92354, USA.
| | - Ying Xia
- Department of Neurosurgery, Xiangya School of Medicine, Affiliated Haikou Hospital, Central South University, Haikou, 570208, China.
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12
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Rowland MB, Moore PE, Correll RN. Regulation of cardiac fibroblast cell death by unfolded protein response signaling. Front Physiol 2024; 14:1304669. [PMID: 38283278 PMCID: PMC10811265 DOI: 10.3389/fphys.2023.1304669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 12/21/2023] [Indexed: 01/30/2024] Open
Abstract
The endoplasmic reticulum (ER) is a tightly regulated organelle that requires specific environmental properties to efficiently carry out its function as a major site of protein synthesis and folding. Embedded in the ER membrane, ER stress sensors inositol-requiring enzyme 1 (IRE1), protein kinase R (PKR)-like endoplasmic reticulum kinase (PERK), and activating transcription factor 6 (ATF6) serve as a sensitive quality control system collectively known as the unfolded protein response (UPR). In response to an accumulation of misfolded proteins, the UPR signals for protective mechanisms to cope with the cellular stress. Under prolonged unstable conditions and an inability to regain homeostasis, the UPR can shift from its original adaptive response to mechanisms leading to UPR-induced apoptosis. These UPR signaling pathways have been implicated as an important feature in the development of cardiac fibrosis, but identifying effective treatments has been difficult. Therefore, the apoptotic mechanisms of UPR signaling in cardiac fibroblasts (CFs) are important to our understanding of chronic fibrosis in the heart. Here, we summarize the maladaptive side of the UPR, activated downstream pathways associated with cell death, and agents that have been used to modify UPR-induced apoptosis in CFs.
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Affiliation(s)
- Mary B. Rowland
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, United States
| | - Patrick E. Moore
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, United States
| | - Robert N. Correll
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, United States
- Center for Convergent Bioscience and Medicine, University of Alabama, Tuscaloosa, AL, United States
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13
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An J, Du C, Xue W, Huang J, Zhong Y, Ren G, Shang Y, Xu B. Endoplasmic reticulum stress participates in apoptosis of HeLa cells exposed to TPHP and OH-TPHP via the eIF2α-ATF4/ATF3-CHOP-DR5/P53 signaling pathway. Toxicol Res (Camb) 2023; 12:1159-1170. [PMID: 38145092 PMCID: PMC10734570 DOI: 10.1093/toxres/tfad110] [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: 08/21/2023] [Revised: 10/23/2023] [Accepted: 11/14/2023] [Indexed: 12/26/2023] Open
Abstract
Purpose Triphenyl phosphate (TPHP) is a widely used organophosphate flame retardant, which can be transformed in vivo into diphenyl phosphate (DPHP) and 4-hydroxyphenyl phosphate (diphenyl) ester (OH-TPHP) through biotransformation process. Accumulation of TPHP and its derivatives in biological tissues makes it necessary to investigate their toxicity and molecular mechanism. Methods The present study evaluated the cellular effects of TPHP, DPHP, and OH-TPHP on cell survival, cell membrane damage, oxidative damage, and cell apoptosis using HeLa cells as in vitro model. RNA sequencing and bioinformatics analysis were conducted to monitor the differently expressed genes, and then RT-qPCR and Western bolt were used to identify potential molecular mechanisms and key hub genes. Results Results showed that OH-TPHP had the most significant cytotoxic effect in HeLa cells, followed by TPHP; and no significant cytotoxic effects were observed for DPHP exposure within the experimental concentrations. Biological function enrichment analysis suggested that TPHP and OH-TPHP exposure may induce endoplasmic reticulum stress (ERS) and cell apoptosis. The nodes filtering revealed that ERS and apoptosis related genes were involved in biological effects induced by TPHP and OH-TPHP, which may be mediated through the eukaryotic translation initiation factor 2α/activating transcription factor 4 (ATF4)/ATF3- CCAAT/ enhancer-binding protein homologous protein (CHOP) cascade pathway and death receptor 5 (DR5) /P53 signaling axis. Conclusion Above all, these findings indicated that ERS-mediated apoptosis might be one of potential mechanisms for cytotoxicity of TPHP and OH-TPHP.
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Affiliation(s)
- Jing An
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Nanchen Road 333, Shanghai 200444, PR China
| | - Chenyang Du
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Nanchen Road 333, Shanghai 200444, PR China
| | - Wanlei Xue
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Nanchen Road 333, Shanghai 200444, PR China
| | - Jin Huang
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Nanchen Road 333, Shanghai 200444, PR China
| | - Yufang Zhong
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Nanchen Road 333, Shanghai 200444, PR China
| | - Guofa Ren
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Nanchen Road 333, Shanghai 200444, PR China
| | - Yu Shang
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Nanchen Road 333, Shanghai 200444, PR China
| | - Bingye Xu
- Zhejiang Ecological and Environmental Monitoring Center, Zhejiang Key Laboratory of Ecological and Environmental Monitoring, Forewarning and Quality Control, Xueyuan Road 117, Hangzhou 310012, PR China
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14
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Zhang R, Tu L, Yang Y, Sun J, Liang T, Li Y, Chen R, Chen B, Luan T. Altered generation pattern of reactive oxygen species triggering DNA and plasma membrane damages to human liver cells treated with arsenite. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 900:165821. [PMID: 37506919 DOI: 10.1016/j.scitotenv.2023.165821] [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: 05/30/2023] [Revised: 07/11/2023] [Accepted: 07/24/2023] [Indexed: 07/30/2023]
Abstract
Human exposure to arsenic via drinking water is one of globally concerned health issues. Oxidative stress is regarded as the denominator of arsenic-inducing toxicities. Therefore, to identify intracellular sources of reactive oxygen species (ROS) could be essential for addressing the detrimental effects of arsenite (iAsIII). In this study, the contributions of different pathways to ROS formation in iAsIII-treated human normal liver (L-02) cells were quantitatively assessed, and then concomitant oxidative impairs were evaluated using metabolomics and lipidomics approaches. Following iAsIII treatment, NADPH oxidase (NOX) activity and expression levels of p47phox and p67phox were upregulated, and NOX-derived ROS contributed to almost 60.0 % of the total ROS. Moreover, iAsIII also induced mitochondrial superoxide anion and impaired mitochondrial respiratory function of L-02 cells with a decreasing ATP production. The inhibition of NOX activity significantly rescued mitochondrial membrane potential in iAsIII-treated L-02 cells. Purine and glycerophospholipids metabolisms in L-02 cells were disrupted by iAsIII, which might be used to represent DNA and plasma membrane damages, respectively. Our study supported that NOX could be the primary pathway of ROS overproduction and revealed the potential mechanisms of iAsIII toxicity related to oxidative stress.
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Affiliation(s)
- Ruijia Zhang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Lanyin Tu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Yuanzhu Yang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Jin Sun
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China
| | - Tong Liang
- Intensive Care Unit, Guangzhou Eighth People's Hospital, Guangzhou 510440, China
| | - Yizheng Li
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China
| | - Ruohong Chen
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Baowei Chen
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China.
| | - Tiangang Luan
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China.
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15
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Li Y, Zhang Q, Yang J, He W, Jiang Y, Chen Y, Wang Y. Metformin combined with glucose starvation synergistically suppress triple-negative breast cancer by enhanced unfolded protein response. Biochem Biophys Res Commun 2023; 675:146-154. [PMID: 37473529 DOI: 10.1016/j.bbrc.2023.07.029] [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: 07/13/2023] [Accepted: 07/13/2023] [Indexed: 07/22/2023]
Abstract
Metformin (MET) is a well-documented drug used in the treatment of type II diabetes. Recent studies have revealed its potential anti-tumor effects in various types of cancer. However, the dosage of MET required to exhibit anti-tumor activity is considerably higher than the clinically recommended dosage. In this study, we investigated the synergistical anti-tumor effect of glucose deprivation and MET in MDA-MB-231 cells, which represents a triple-negative breast cancer subtype (TNBC). Our findings demonstrate that glucose deprivation significantly enhances the anti-tumor activity of MET by reducing cell proliferation and increasing cell apoptosis. RNA-seq was performed to identify the key molecules involved in this process. Our results indicate that unfolded protein response of endoplasmic reticulum (UPRER) was significantly activated upon glucose starvation combining with MET compared to glucose starvation alone. Notably, the combined treatment significantly activated UPRER signaling pathway through ATF4/ATF3/CHOP axis, due to enhanced UPRER stress. In conclusion, our study suggests that the synergistic effects of MET and glucose deprivation suppress cell proliferation in TNBC by activating pro-apoptotic molecules through UPRER stress. These findings have potential implications for the anti-tumor application of MET in TNBC.
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Affiliation(s)
- Ying Li
- Department of Pharmacy, Tongde Hospital of Zhejiang Province, Hangzhou, PR China; Key Laboratory of Cancer Prevention and Therapy Combining Traditional Chinese and Western Medicine of Zhejiang Province, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, PR China
| | - Qingqian Zhang
- Department of Oncology, Tongde Hospital of Zhejiang Province, Hangzhou, PR China
| | - Jintao Yang
- Key Laboratory of Digital Technology in Medical Diagnostics of Zhejiang Province, Dian Diagnostics Group Co., Ltd., Hangzhou, Zhejiang Province, Hangzhou, PR China
| | - Weiping He
- Department of Pharmacy, Tongde Hospital of Zhejiang Province, Hangzhou, PR China
| | - Yulan Jiang
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, PR China
| | - Yu Chen
- School of Pharmacy, Hangzhou Normal University, Hangzhou, PR China
| | - Yifan Wang
- Cancer Institute of Integrative Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, PR China; Key Laboratory of Cancer Prevention and Therapy Combining Traditional Chinese and Western Medicine of Zhejiang Province, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, PR China.
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16
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Zhang L, Li Z, Zhang M, Zou H, Bai Y, Liu Y, Lv J, Lv L, Liu P, Deng Z, Liu C. Advances in the molecular mechanism and targeted therapy of radioactive-iodine refractory differentiated thyroid cancer. Med Oncol 2023; 40:258. [PMID: 37524925 DOI: 10.1007/s12032-023-02098-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 06/21/2023] [Indexed: 08/02/2023]
Abstract
Most patients with differentiated thyroid cancer have a good prognosis after radioactive iodine-131 treatment, but there are still a small number of patients who are not sensitive to radioiodine treatment and may subsequently show disease progression. Therefore, radioactive-iodine refractory differentiated thyroid cancer treated with radioiodine usually shows reduced radioiodine uptake. Thus, when sodium iodine symporter expression, basolateral membrane localization and recycling degradation are abnormal, radioactive-iodine refractory differentiated thyroid cancer may occur. In recent years, with the deepening of research into the pathogenesis of this disease, an increasing number of molecules have become or are expected to become therapeutic targets. The application of corresponding inhibitors or combined treatment regimens for different molecular targets may be effective for patients with advanced radioactive-iodine refractory differentiated thyroid cancer. Currently, some targeted drugs that can improve the progression-free survival of patients with radioactive-iodine refractory differentiated thyroid cancer, such as sorafenib and lenvatinib, have been approved by the FDA for the treatment of radioactive-iodine refractory differentiated thyroid cancer. However, due to the adverse reactions and drug resistance caused by some targeted drugs, their application is limited. In response to targeted drug resistance and high rates of adverse reactions, research into new treatment combinations is being carried out; in addition to kinase inhibitor therapy, gene therapy and rutin-assisted iodine-131 therapy for radioactive-iodine refractory thyroid cancer have also made some progress. Thus, this article mainly focuses on sodium iodide symporter changes leading to the main molecular mechanisms in radioactive-iodine refractory differentiated thyroid cancer, some targeted drug resistance mechanisms and promising new treatments.
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Affiliation(s)
- Lu Zhang
- Department of Nuclear Medicine, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, 519 Kunzhou Road, Xishan District, Kunming, KM, 650118, China
| | - Zhi Li
- Department of Nuclear Medicine, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, 519 Kunzhou Road, Xishan District, Kunming, KM, 650118, China
| | - Meng Zhang
- Department of Nuclear Medicine, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, 519 Kunzhou Road, Xishan District, Kunming, KM, 650118, China
| | - Huangren Zou
- Department of Nuclear Medicine, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, 519 Kunzhou Road, Xishan District, Kunming, KM, 650118, China
| | - Yuke Bai
- Department of Nuclear Medicine, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, 519 Kunzhou Road, Xishan District, Kunming, KM, 650118, China
| | - Yanlin Liu
- Department of Nuclear Medicine, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, 519 Kunzhou Road, Xishan District, Kunming, KM, 650118, China
| | - Juan Lv
- Department of Nuclear Medicine, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, 519 Kunzhou Road, Xishan District, Kunming, KM, 650118, China
| | - Ling Lv
- Department of Nuclear Medicine, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, 519 Kunzhou Road, Xishan District, Kunming, KM, 650118, China
| | - Pengjie Liu
- Department of Nuclear Medicine, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, 519 Kunzhou Road, Xishan District, Kunming, KM, 650118, China
| | - Zhiyong Deng
- Department of Nuclear Medicine, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, 519 Kunzhou Road, Xishan District, Kunming, KM, 650118, China.
| | - Chao Liu
- Department of Nuclear Medicine, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, 519 Kunzhou Road, Xishan District, Kunming, KM, 650118, China
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17
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Sui H, Xiao S, Jiang S, Wu S, Lin H, Cheng L, Ye L, Zhao Q, Yu Y, Tao L, Kong FM, Huang X, Cui R. Regorafenib induces NOX5-mediated endoplasmic reticulum stress and potentiates the anti-tumor activity of cisplatin in non-small cell lung cancer cells. Neoplasia 2023; 39:100897. [PMID: 36940556 PMCID: PMC10036942 DOI: 10.1016/j.neo.2023.100897] [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: 12/22/2022] [Revised: 03/08/2023] [Accepted: 03/13/2023] [Indexed: 03/23/2023]
Abstract
Lung cancer is one of the most commonly diagnosed cancers worldwide. Although cisplatin-based chemotherapy regimens serve a pivotal role in non-small cell lung cancer (NSCLC) treatment, drug resistance and serious side effects limited its further clinical application. Regorafenib, a small-molecule multi-kinase inhibitor, was demonstrated to have promising anti-tumor activity in various solid tumors. In the present study, we found that regorafenib markedly enhanced cisplatin-induced cytotoxicity in lung cancer cells by activating reactive oxygen species (ROS)-mediated endoplasmic reticulum stress (ER Stress), c-Jun N-terminal kinase (JNK) and p38 mitogen-activated protein kinase (MAPK) signaling pathways. Regorafenib increased ROS generation by promoting NADPH oxidase 5 (NOX5) expression, and knocking down NOX5 attenuated ROS-mediated cytotoxicity of regorafenib in lung cancer cells. Additionally, mice xenograft model validated that synergistic anti-tumor effects of combined treatment with regorafenib and cisplatin. Our results suggested that combination therapy with regorafenib and cisplatin may serve as a potential therapeutic strategy for some NSCLC patients.
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Affiliation(s)
- Hehuan Sui
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; Wenzhou University-Wenzhou Medical University Collaborative Innovation Center of Biomedical, Wenzhou, 325035, China
| | - Sisi Xiao
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; Wenzhou University-Wenzhou Medical University Collaborative Innovation Center of Biomedical, Wenzhou, 325035, China; The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Suping Jiang
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; Wenzhou University-Wenzhou Medical University Collaborative Innovation Center of Biomedical, Wenzhou, 325035, China
| | - Siyuan Wu
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; Wenzhou University-Wenzhou Medical University Collaborative Innovation Center of Biomedical, Wenzhou, 325035, China
| | - Haizhen Lin
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Liyuan Cheng
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; Wenzhou University-Wenzhou Medical University Collaborative Innovation Center of Biomedical, Wenzhou, 325035, China
| | - Lihua Ye
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; Wenzhou University-Wenzhou Medical University Collaborative Innovation Center of Biomedical, Wenzhou, 325035, China
| | - Qi Zhao
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; Wenzhou University-Wenzhou Medical University Collaborative Innovation Center of Biomedical, Wenzhou, 325035, China
| | - Yun Yu
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Lu Tao
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Feng-Ming Kong
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China.
| | - Xiaoying Huang
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China.
| | - Ri Cui
- Cancer and Anticancer Drug Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; Wenzhou University-Wenzhou Medical University Collaborative Innovation Center of Biomedical, Wenzhou, 325035, China.
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Luo S, Zhang C, Gao Z, Jiang L, Li Q, Shi X, Kong Y, Cao J. ER stress-enhanced HMGA2 plays an important role in Cr (VI)-induced glycolysis and inhibited oxidative phosphorylation by targeting the transcription of ATF4. Chem Biol Interact 2023; 369:110293. [PMID: 36473502 DOI: 10.1016/j.cbi.2022.110293] [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: 05/21/2022] [Revised: 11/11/2022] [Accepted: 11/28/2022] [Indexed: 12/07/2022]
Abstract
Hexavalent chromium [Cr (VI)] is a proven human carcinogen which is widely used in steel manufacturing and painting. Here, the involvement of high mobility group A2 (HMGA2) in Cr (VI)-mediated glycolysis and oxidative phosphorylation (OXPHOS) was investigated. First, Cr (VI) treatment induced aerobic glycolysis by increasing the expression of GLUT1, HK II, PKM2 and LDHA enzymes, and reduced OXPHOS by decreasing mitochondrial mass, the expression of COX IV and ND1, and increasing Ca2+ content in mitochondria in A549 and HELF cells. And overexpression of HMGA2 induced aerobic glycolysis and decreased OXPHOS. Secondly, using endoplasmic reticulum (ER) stress inhibitor, 4-phenylbutyric acid (4-PBA) and knockdown of activating transcription factor 4 (ATF4) gene by siRNA, we demonstrated that ER stress and ATF4 elevation mediated Cr (VI)-induced glycolysis and inhibited OXPHOS. Furthermore, using tunicamycin (Tm), siHMGA2, transfection of HMGA2 and siATF4, we demonstrated that ER stress-enhanced interaction of HMGA2 and ATF4 resulted in Cr (VI)-induced glycolysis and inhibited OXPHOS. Additionally, ChIP assay revealed that HMGA2 protein could directly bind to the promoter sequence of ATF4 gene, which modulated Cr (VI)-induced ATF4 elevation. Finally, in lung tissues of BALB/c mice injected with HMGA2 plasmids, it is verified that HMGA2 involved in regulation of ATF4, glycolysis and OXPHOS in vivo. Combining, our data discovered that ER stress-enhanced the interaction of HMGA2 and ATF4 played an important role in Cr (VI)-mediated glycolysis and OXPHOS. These results imply a root cause for the carcinogenicity of Cr (VI), and could guide development of novel therapeutics for cancers.
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Affiliation(s)
- Shengxiang Luo
- Department of Occupational and Environmental Health, Dalian Medical University, No. 9 W. Lvshun South Road, Dalian, 116044, China
| | - Cong Zhang
- Department of Food Nutrition and Safety, Dalian Medical University, Dalian, 116044, China
| | - Zeyun Gao
- Department of Occupational and Environmental Health, Dalian Medical University, No. 9 W. Lvshun South Road, Dalian, 116044, China
| | - Liping Jiang
- Department of Occupational and Environmental Health, Dalian Medical University, No. 9 W. Lvshun South Road, Dalian, 116044, China
| | - Qiujuan Li
- Department of Occupational and Environmental Health, Dalian Medical University, No. 9 W. Lvshun South Road, Dalian, 116044, China
| | - Xiaoxia Shi
- Department of Occupational and Environmental Health, Dalian Medical University, No. 9 W. Lvshun South Road, Dalian, 116044, China
| | - Ying Kong
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, 116044, China.
| | - Jun Cao
- Department of Occupational and Environmental Health, Dalian Medical University, No. 9 W. Lvshun South Road, Dalian, 116044, China.
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Zhao Z, Wang X, Lu M, Gao Y. Rosuvastatin Improves Endothelial Dysfunction in Diabetes by Normalizing Endoplasmic Reticulum Stress via Calpain-1 Inhibition. Curr Pharm Des 2023; 29:2579-2590. [PMID: 37881071 DOI: 10.2174/0113816128250494231016065438] [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: 02/23/2023] [Revised: 07/06/2023] [Accepted: 08/31/2023] [Indexed: 10/27/2023]
Abstract
BACKGROUND Rosuvastatin contributes to the improvement of vascular complications in diabetes, but the protective mechanisms remain unclear. The aim of the present study was to investigate the effect and mechanism of rosuvastatin on endothelial dysfunction induced by diabetes. METHODS Calpain-1 knockout (Capn1 EK684-/-) and C57BL/6 mice were intraperitoneally injected with STZ to induce type 1 diabetes. Human umbilical vein endothelial cells (HUVECs) were incubated with high glucose in this study. The function of isolated vascular rings, apoptosis, and endoplasmic reticulum stress (ERS) indicators were measured in this experiment. RESULTS The results showed that rosuvastatin (5 mg/kg/d) and calpain-1 knockout improved impaired vasodilation in an endothelial-dependent manner, and this effect was abolished by an ERS inducer. Rosuvastatin administration inhibited calpain-1 activation and ERS induced by high glucose, as well as apoptosis and oxidative stress both in vivo and in vitro. In addition, an ERS inducer (tunicamycin) offset the beneficial effect of rosuvastatin on endothelial dysfunction and ERS, which was accompanied by increased calpain-1 expression. The ERS inhibitor showed a similar improvement in endothelial dysfunction with rosuvastatin but could not increase the improvement in endothelial function of rosuvastatin. CONCLUSION These results suggested that rosuvastatin improves endothelial dysfunction by suppressing calpain- 1 and normalizing ERS, subsequently decreasing apoptosis and oxidative stress.
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Affiliation(s)
- Zhao Zhao
- Cardiovascular Department, Tianjin Medical University General Hospital, Tianjin, China
- The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Xinpeng Wang
- The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Meili Lu
- Liaoning Provincial Key Laboratory of Cardiovascular Drugs, Jinzhou Medical University, Jinzhou, China
| | - Yuxia Gao
- Cardiovascular Department, Tianjin Medical University General Hospital, Tianjin, China
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20
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Role of ER Stress in Xenobiotic-Induced Liver Diseases and Hepatotoxicity. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:4640161. [PMID: 36388166 PMCID: PMC9652065 DOI: 10.1155/2022/4640161] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/12/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
Abstract
The liver is a highly metabolic organ and plays a crucial role in the transportation, storage, and/or detoxication of xenobiotics. Liver damage induced by xenobiotics (e.g., heavy metal, endocrine disrupting chemicals, Chinese herbal medicine, or nanoparticles) has become a pivotal reason for liver diseases, leading to great clinical challenge and much attention for the past decades. Given that endoplasmic reticulum (ER) is the prominent organelle involved in hepatic metabolism, ER dysfunction, namely, ER stress, is clearly observed in various liver diseases. In response to ER stress, a conserved adaptive signaling pathway known as unfolded protein response (UPR) is activated to restore ER homeostasis. However, the prolonged ER stress with UPR eventually leads to the death of hepatocytes, which is a pathogenic event in many hepatic diseases. Therefore, analyzing the perturbation in the activation or inhibition of ER stress and the UPR signaling pathway is likely an effective marker for investigating the molecular mechanisms behind the toxic effects of xenobiotics on the liver. We review the role of ER stress in hepatic diseases and xenobiotic-induced hepatotoxicity, which not only provides a theoretical basis for further understanding the pathogenesis of liver diseases and the mechanisms of hepatotoxicity induced by xenobiotics but also presents a potential target for the prevention and treatment of xenobiotic-related liver diseases.
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21
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Mitochondrial-Endoplasmic Reticulum Communication-Mediated Oxidative Stress and Autophagy. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6459585. [PMID: 36164446 PMCID: PMC9509228 DOI: 10.1155/2022/6459585] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 06/18/2022] [Accepted: 08/22/2022] [Indexed: 12/03/2022]
Abstract
Oxidative stress is an imbalance between free radicals and the antioxidant system causing overgeneration of free radicals (oxygen-containing molecules) ultimately leading to oxidative damage in terms of lipid peroxidation, protein denaturation, and DNA mutation. Oxidative stress can activate autophagy to alleviate oxidative damage and maintain normal physiological activities of cells by degrading damaged organelles or local cytoplasm. When oxidative stress is not eliminated by autophagy, it activates the apoptosis cascade. This review provides a brief summary of mitochondrial-endoplasmic reticulum communication-mediated oxidative stress and autophagy. Mitochondria and endoplasmic reticulum being important organelles in cells are directly or indirectly connected to each other through mitochondria-associated endoplasmic reticulum membranes and jointly regulate oxidative stress and autophagy. The reactive oxygen species (ROS) produced by the mitochondrial respiratory chain are the main inducers of oxidative stress. Damaged mitochondria can be effectively cleared by the process of mitophagy mediated by PINK1/parkin pathway, Nix/BNIP3 pathways, and FUNDC1 pathway, avoiding excessive ROS production. However, the mechanism of mitochondrial-endoplasmic reticulum communication in the regulation of oxidative stress and autophagy is rarely known. For this reason, this review explores the mutual connection of mitochondria and endoplasmic reticulum in mediating oxidative stress and autophagy through ROS and Ca2+ and aims to provide part of the theoretical basis for alleviating oxidative stress through autophagy mediated by mitochondrial-endoplasmic reticulum communication.
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22
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Zhang Y, Wu J, Fu Y, Yu R, Su H, Zheng Q, Wu H, Zhou S, Wang K, Zhao J, Shen S, Xu G, Wang L, Yan C, Zou X, Lv Y, Zhang S. Hesperadin suppresses pancreatic cancer through ATF4/GADD45A axis at nanomolar concentrations. Oncogene 2022; 41:3394-3408. [PMID: 35551503 DOI: 10.1038/s41388-022-02328-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 04/09/2022] [Accepted: 04/14/2022] [Indexed: 12/24/2022]
Abstract
Pancreatic cancer (PC) is a fatal disease with poor survival and limited therapeutic strategies. In this study, we identified Hesperadin as a potent anti-cancer compound against PC, from a high-throughput screening of a commercial chemical library associated with cell death. Hesperadin induced potent growth inhibition in PC cell lines and patient-derived tumor organoids in a dose- and time-dependent manner, with IC50 values in the nanomolar range. Cellular studies showed that Hesperadin caused mitochondria damage in PC cells, resulting in reactive oxygen species production, ER stress and apoptotic cell death. Transcriptomic analysis using RNA-sequencing data identified GADD45A as a potential target of Hesperadin. Mechanistic studies showed that Hesperadin could increase GADD45A expression in PC cells via ATF4, leading to apoptosis. Moreover, immunohistochemical staining of 92 PC patient samples demonstrated the correlation between ATF4 and GADD45A expression. PC xenograft studies demonstrated that Hesperadin could effectively inhibit the growth of PC cells in vivo. Together, these findings suggest that Hesperadin is a novel drug candidate for PC.
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Affiliation(s)
- Yixuan Zhang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China
- Nanjing University Institute of Pancreatology, Nanjing, China
| | - Jianzhuang Wu
- Nanjing University Institute of Pancreatology, Nanjing, China
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Yao Fu
- Department of Pathology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China
| | - Ranran Yu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Haochen Su
- Nanjing University Institute of Pancreatology, Nanjing, China
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Qisi Zheng
- Department of Clinical Laboratory, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China
| | - Hao Wu
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China
- Nanjing University Institute of Pancreatology, Nanjing, China
| | - Siqi Zhou
- Nanjing University Institute of Pancreatology, Nanjing, China
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Jiangsu University, Nanjing, China
| | - Kun Wang
- Nanjing University Institute of Pancreatology, Nanjing, China
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Xuzhou Medical University, Nanjing, China
| | - Jing Zhao
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China
- Nanjing University Institute of Pancreatology, Nanjing, China
| | - Shanshan Shen
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China
- Nanjing University Institute of Pancreatology, Nanjing, China
| | - Guifang Xu
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China
- Nanjing University Institute of Pancreatology, Nanjing, China
| | - Lei Wang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China
- Nanjing University Institute of Pancreatology, Nanjing, China
| | - Chao Yan
- Nanjing University Institute of Pancreatology, Nanjing, China
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Xiaoping Zou
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China.
- Nanjing University Institute of Pancreatology, Nanjing, China.
| | - Ying Lv
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China.
- Nanjing University Institute of Pancreatology, Nanjing, China.
| | - Shu Zhang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China.
- Nanjing University Institute of Pancreatology, Nanjing, China.
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Wu L, Yang F, Du S, Hu T, Wei S, Wang G, Zeng Q, Luo P. Inorganic arsenic promotes apoptosis of human immortal keratinocytes through the TGF-β1/ERK signaling pathway. ENVIRONMENTAL TOXICOLOGY 2022; 37:1321-1331. [PMID: 35142421 DOI: 10.1002/tox.23486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 01/29/2022] [Indexed: 06/14/2023]
Abstract
Chronic exposure to high-dose inorganic arsenic through groundwater, air, or food remains a major environmental public health issue worldwide. Apoptosis, a method of cell death, has recently become a hot topic of research in biology and medicine. Previous studies have demonstrated that extracellular signal-regulated kinase (ERK) is related to arsenic-induced apoptosis. However, the reports are contradictory, and the knowledge of the above-mentioned mechanisms and their mutual regulation remains limited. In this study, the associations between the TGF-β1/ERK signaling pathway and arsenic-induced cell apoptosis were confirmed using the HaCaT cell model. The relative expressions of the indicators of the TGF-β1/ERK signaling pathway, apoptosis-related genes (cytochrome C, caspase-3, caspase-9, cleaved caspase-3, cleaved caspase-9, and Bax), the mitochondrial membrane potential, and the total apoptosis rate were significantly increased (P < .05), while the expression of the antiapoptosis gene Bcl-2 was significantly decreased (P < .05) in cells of the group exposed to arsenic. Moreover, the results demonstrated that the ERK inhibitor (PD98059) and TGF-β1 inhibitor (LY364947) could inhibit the activation of the ERK signaling pathway, thereby reducing the mitochondrial membrane potential, the total apoptosis rate, and the expression of pro-apoptosis-related genes in the cells, while the expression of the antiapoptosis gene Bcl-2 was significantly increased (P < .05). By contrast, the recombinant human TGF-β1 could promote apoptosis of the HaCaT cells by increasing the activation of the ERK signaling pathway (P < .05). These results indicate that inorganic arsenic promotes the apoptosis of human immortal keratinocytes through the TGF-β1/ERK signaling pathway.
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Affiliation(s)
- Liping Wu
- The key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
| | - Fan Yang
- The key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
| | - Sufei Du
- The key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
| | - Ting Hu
- The key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
- Guizhou Provincial Engineering Research Center of Food Nutrition and Health, Guizhou Medical University, Guiyang, China
| | - Shaofeng Wei
- The key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
- Guizhou Provincial Engineering Research Center of Food Nutrition and Health, Guizhou Medical University, Guiyang, China
| | - Guoze Wang
- The key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
- Guizhou Provincial Engineering Research Center of Food Nutrition and Health, Guizhou Medical University, Guiyang, China
| | - Qibing Zeng
- The key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
- Guizhou Provincial Engineering Research Center of Food Nutrition and Health, Guizhou Medical University, Guiyang, China
| | - Peng Luo
- The key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
- Guizhou Provincial Engineering Research Center of Food Nutrition and Health, Guizhou Medical University, Guiyang, China
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24
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Mitochondrial ROS, ER Stress, and Nrf2 Crosstalk in the Regulation of Mitochondrial Apoptosis Induced by Arsenite. Antioxidants (Basel) 2022; 11:antiox11051034. [PMID: 35624898 PMCID: PMC9137803 DOI: 10.3390/antiox11051034] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/17/2022] [Accepted: 05/20/2022] [Indexed: 02/07/2023] Open
Abstract
Long-term ingestion of arsenicals, a heterogeneous group of toxic compounds, has been associated with a wide spectrum of human pathologies, which include various malignancies. Although their mechanism of toxicity remains largely unknown, it is generally believed that arsenicals mainly produce their effects via direct binding to protein thiols and ROS formation in different subcellular compartments. The generality of these mechanisms most probably accounts for the different effects mediated by different forms of the metalloid in a variety of cells and tissues. In order to learn more about the molecular mechanisms of cyto- and genotoxicity, there is a need to focus on specific arsenic compounds under tightly controlled conditions. This review focuses on the mechanisms regulating the mitochondrial formation of ROS after exposure to low concentrations of a specific arsenic compound, NaAsO2, and their crosstalk with the nuclear factor (erythroid-2 related) factor 2 antioxidant signaling and the endoplasmic reticulum stress response.
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25
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Crosstalk between ERO1α and ryanodine receptor in arsenite-dependent mitochondrial ROS formation. Biochem Pharmacol 2022; 198:114973. [PMID: 35189109 DOI: 10.1016/j.bcp.2022.114973] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 02/14/2022] [Accepted: 02/15/2022] [Indexed: 12/21/2022]
Abstract
Arsenite, a well-established human carcinogen and toxic compound, promotes the formation of mitochondrial superoxide (mitoO2-) via a Ca2+-dependent mechanism, in which an initial stimulation of the inositol 1, 4, 5-trisphosphate receptor (IP3R) is followed by the activation of the ryanodine receptor (RyR), critical for providing Ca2+ to the mitochondria. We now report that, under the same conditions, arsenite triggers endoplasmic reticulum (ER) stress and a threefold increase in ER oxidoreductin 1α (ERO1 α) levels in proliferating U937 cells. EN460, an inhibitor of ERO1 α, recapitulated all the effects associated with RyR inhibition or downregulation, including prevention of RyR-induced Ca2+ accumulation in mitochondria and the resulting O2-. formation. Quantitatively similar results were obtained in inhibitor studies performed in terminally differentiated wild type C2C12 cells. Moreover, ERO1 α knockout C2C12 myotubes responded to arsenite as their wild type counterpart supplemented with EN460. As a final note, arsenite enhanced the expression of ERO1 α via a mechanism mediated by Ca2+ release from both the IP3R and RyR. We therefore conclude that arsenite activates a positive feedback amplification cycle between Ca2+ levels and ERO1 α in the ER, by which IP3R-dependent Ca2+ induces ERO1 α and ERO1 α promotes Ca2+ release via RyR, thereby amplifying the initial Ca2+ load and causing the mitochondrial accumulation of the cation, critical for mitoO2- formation.
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26
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Liang Q, Liu M, Li J, Tong R, Hu Y, Bai L, Shi J. NAE modulators: A potential therapy for gastric carcinoma. Eur J Med Chem 2022; 231:114156. [DOI: 10.1016/j.ejmech.2022.114156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 01/15/2022] [Accepted: 01/24/2022] [Indexed: 12/24/2022]
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Ubiquitinated gasdermin D mediates arsenic-induced pyroptosis and hepatic insulin resistance in rat liver. Food Chem Toxicol 2021; 160:112771. [PMID: 34920032 DOI: 10.1016/j.fct.2021.112771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 12/07/2021] [Accepted: 12/11/2021] [Indexed: 02/08/2023]
Abstract
As an environmental toxicant, arsenic exposure may cause insulin resistance (IR). Previous studies have shown that pyroptosis plays an important role in the occurrence and development of IR. Although gasdermin D (GSDMD) functions as an executor of pyroptosis, the relationship between GSDMD-mediated pyroptosis and hepatic IR remains unclear. Here, we observed that sodium arsenite (NaAsO2) activated NOD-like receptors containing pyrin domain 3 (NLRP3) inflammasomes, promoted GSDMD activation, induced pyroptosis and hepatic IR, while GSDMD knockdown attenuated pyroptosis and hepatic IR caused by NaAsO2. However, GSDMD interference did not affect NLRP3 activation. Ubiquitination modification is widely involved in protein regulation and intracellular signal transduction, and whether it regulates GSDMD and affects its degradation, and exerts effects on arsenic-induced pyroptosis remain unclear. We observed that NaAsO2 reduced the K48- and K63-linked ubiquitination of GSDMD, thereby inhibiting its degradation through the ubiquitin-proteasome system (UPS) and the autophagy-lysosome pathway (ALP), causing GSDMD to accumulate and lyse into GSDMD-N, which promoted pyroptosis. In summary, we demonstrated that GSDMD participated in arsenic-induced hepatic IR. Moreover, NaAsO2 reduced GSDMD ubiquitination and decreased its intracellular degradation, aggravating pyroptosis and hepatic IR. We have revealed the molecular mechanism underpinning arsenic-induced IR, and we provide potential solutions for the prevention and treatment of type 2 diabetes (T2D).
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Martínez-Castillo M, García-Montalvo EA, Arellano-Mendoza MG, Sánchez-Peña LDC, Soria Jasso LE, Izquierdo-Vega JA, Valenzuela OL, Hernández-Zavala A. Arsenic exposure and non-carcinogenic health effects. Hum Exp Toxicol 2021; 40:S826-S850. [PMID: 34610256 DOI: 10.1177/09603271211045955] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Inorganic arsenic (iAs) exposure is a serious health problem that affects more than 140 million individuals worldwide, mainly, through contaminated drinking water. Acute iAs poisoning produces several symptoms such as nausea, vomiting, abdominal pain, and severe diarrhea, whereas prolonged iAs exposure increased the risk of several malignant disorders such as lung, urinary tract, and skin tumors. Another sensitive endpoint less described of chronic iAs exposure are the non-malignant health effects in hepatic, endocrine, renal, neurological, hematological, immune, and cardiovascular systems. The present review outlines epidemiology evidence and possible molecular mechanisms associated with iAs-toxicity in several non-carcinogenic disorders.
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Affiliation(s)
- Macario Martínez-Castillo
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, 27740Instituto Politécnico Nacional, Ciudad de México, México
| | | | - Mónica G Arellano-Mendoza
- Laboratorio de Investigación en Enfermedades Crónico-Degenerativas, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, 27740Instituto Politécnico Nacional, Ciudad de México, México
| | - Luz Del C Sánchez-Peña
- Departamento de Toxicología, 540716Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de Mexico, México
| | - Luis E Soria Jasso
- Centro de Investigación en Biología de la Reproducción, Área Académica de Medicina del Instituto de Ciencias de la Salud, 103794Universidad Autónoma del Estado de Hidalgo, Pachuca, México
| | - Jeannett A Izquierdo-Vega
- Área Académica de Medicina, Instituto de Ciencias de la Salud, 103794Universidad Autónoma del Estado de Hidalgo, Pachuca, México
| | - Olga L Valenzuela
- Facultad de Ciencias Químicas, 428055Universidad Veracruzana, Orizaba, México
| | - Araceli Hernández-Zavala
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, 27740Instituto Politécnico Nacional, Ciudad de México, México
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Kumar S, Tchounwou PB. Arsenic trioxide reduces the expression of E2F1, cyclin E, and phosphorylation of PI3K signaling molecules in acute leukemia cells. ENVIRONMENTAL TOXICOLOGY 2021; 36:1785-1792. [PMID: 34042274 PMCID: PMC8453914 DOI: 10.1002/tox.23299] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 04/29/2021] [Accepted: 05/18/2021] [Indexed: 05/16/2023]
Abstract
Arsenic trioxide (ATO) has been used for the treatment of acute promyelocytic leukemia (APL). Although ATO modulates cell cycle progression and apoptosis in APL cells, its exact mechanism of action remains elusive. In this research, we investigated its effects on E2F1, cyclin E, p53, pRb, and PI3K signaling molecules by western blotting, immunocytochemistry and/or confocal imaging. We found that ATO inhibited the proliferation of APL cells through down-regulation of E2F1 and cyclin E expression, and stimulation of pRb. It also reduced the interaction of pRb and E2F1with binding to the E2F1 promoter, by stimulating pRb association. ATO also effected the phosphorylation of pRb at S608 and T373 residues and association of E2F1, pRb, and p53, simultaneously. However, in p53-knockdown NB4 cells, ATO did not significantly reduce E2F1 and cyclin E expression. Our findings demonstrate that ATO inhibits APL cell growth through reduced expression of E2F1, cyclin E, and stimulation of pRb. It also effected both interaction and association of E2F1, pRb, and p53 by phosphorylation of pRb at T373 and S608 residues and reduced phosphorylation of PI3K signaling molecules. This novel mode of action of ATO in APL cells may be useful for designing new APL drugs.
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Affiliation(s)
- Sanjay Kumar
- Cellomics and Toxicogenomics Research LaboratoryNIH/NIMHD‐RCMI Center for Environmental Health, College of Science, Engineering and Technology, Jackson State UniversityJacksonMississippi
- Department of life Sciences, School of Earth, Biological, and Environmental SciencesCentral UniversityGayaSouth BiharIndia
| | - Paul B. Tchounwou
- Cellomics and Toxicogenomics Research LaboratoryNIH/NIMHD‐RCMI Center for Environmental Health, College of Science, Engineering and Technology, Jackson State UniversityJacksonMississippi
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Artesunate Restrains Maturation of Dendritic Cells and Ameliorates Heart Transplantation-Induced Acute Rejection in Mice through the PERK/ATF4/CHOP Signaling Pathway. Mediators Inflamm 2021; 2021:2481907. [PMID: 34462628 PMCID: PMC8403043 DOI: 10.1155/2021/2481907] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 07/09/2021] [Accepted: 08/02/2021] [Indexed: 02/05/2023] Open
Abstract
Background Heart transplantation (HT) is the only effective treatment for end-stage heart failure because it can effectively improve the survival rate and quality of life of patients with heart failure. Artesunate (ART) is an artemisinin derivative, with good water solubility and higher oral bioavailability. The main aim of this study was to determine the role of ART in HT mice. Methods In animal experiments, mice were divided into the control group, HT group, low ART+HT group, and high ART+HT group. Next, inflammatory cell infiltration, oxidative stress injury, and myocardial cell apoptosis were determined in heart tissue. The proportion of multiple lymphocytes in spleen and lymph nodes was then determined using flow cytometry. In addition, cell experiments were conducted to determine the changes in expression of surface maturation markers of BMDC and changes in intracellular reactive oxygen species after LPS stimulation. Finally, western blot analysis was performed to determine the levels of endoplasmic reticulum stress-related proteins (CHOP/ATF4/PERK). Results The survival time of mice in the ART treatment group was significantly prolonged and was positively correlated with the dose. In animal experiments, ART significantly reduced inflammatory cell infiltration in heart tissue and the proportion of CD4+CD8+ T cells in spleens and lymph nodes. Moreover, ART treatment lowered the 8-OHdg in hearts and myocardial apoptosis. In cell experiments, ART treatment slowed down the development and maturation of BMDCs by inhibiting the expression of endoplasmic reticulum stress-related proteins. Furthermore, the treatment alleviated the oxidative stress damage of BMDCs. Conclusion ART can inhibit maturation of dendritic cells through the endoplasmic reticulum stress signaling pathway, thereby alleviating acute rejection in mice after heart transplantation.
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Zhou Y, Murugan DD, Khan H, Huang Y, Cheang WS. Roles and Therapeutic Implications of Endoplasmic Reticulum Stress and Oxidative Stress in Cardiovascular Diseases. Antioxidants (Basel) 2021; 10:antiox10081167. [PMID: 34439415 PMCID: PMC8388996 DOI: 10.3390/antiox10081167] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/18/2021] [Accepted: 07/21/2021] [Indexed: 12/12/2022] Open
Abstract
In different pathological states that cause endoplasmic reticulum (ER) calcium depletion, altered glycosylation, nutrient deprivation, oxidative stress, DNA damage or energy perturbation/fluctuations, the protein folding process is disrupted and the ER becomes stressed. Studies in the past decade have demonstrated that ER stress is closely associated with pathogenesis of obesity, insulin resistance and type 2 diabetes. Excess nutrients and inflammatory cytokines associated with metabolic diseases can trigger or worsen ER stress. ER stress plays a critical role in the induction of endothelial dysfunction and atherosclerosis. Signaling pathways including AMP-activated protein kinase and peroxisome proliferator-activated receptor have been identified to regulate ER stress, whilst ER stress contributes to the imbalanced production between nitric oxide (NO) and reactive oxygen species (ROS) causing oxidative stress. Several drugs or herbs have been proved to protect against cardiovascular diseases (CVD) through inhibition of ER stress and oxidative stress. The present article reviews the involvement of ER stress and oxidative stress in cardiovascular dysfunction and the potential therapeutic implications.
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Affiliation(s)
- Yan Zhou
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China;
| | - Dharmani Devi Murugan
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia;
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University, Mardan 23200, Pakistan;
| | - Yu Huang
- School of Biomedical Sciences, Chinese University of Hong Kong, Hong Kong 999077, China;
| | - Wai San Cheang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China;
- Correspondence: ; Tel.: +853-8822-4914
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32
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Bao J, Qian Z, Liu L, Hong X, Che H, Wu X. Pharmacological Disruption of Phosphorylated Eukaryotic Initiation Factor-2α/Activating Transcription Factor 4/Indian Hedgehog Protects Intervertebral Disc Degeneration via Reducing the Reactive Oxygen Species and Apoptosis of Nucleus Pulposus Cells. Front Cell Dev Biol 2021; 9:675486. [PMID: 34164397 PMCID: PMC8215438 DOI: 10.3389/fcell.2021.675486] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 04/20/2021] [Indexed: 12/29/2022] Open
Abstract
Excessive reactive oxygen species (ROS) and apoptosis in nucleus pulposus (NP) cells accelerate the process of intervertebral disc degeneration (IDD). Here, we integrated pathological samples and in vitro and in vivo framework to investigate the impact of phosphorylation of eukaryotic initiation factor-2α (eIF2α)/activating transcription factor 4 (ATF4)/Indian hedgehog (Ihh) signaling in the IDD. From the specimen analysis of the IDD patients, we found phosphorylated eIF2α (p-eIF2α), ATF4 and Ihh protein levels were positively related while the NP tissue went degenerative. In vitro, tumor necrosis factor (TNF)-α caused the NP cell degeneration and induced a cascade of upregulation of p-eIF2α, ATF4, and Ihh. Interestingly, ATF4 could enhance Ihh expression through binding its promoter region, and silencing of ATF4 decreased Ihh and protected the NP cells from degeneration. Moreover, ISRIB inhibited the p-eIF2α, which resulted in a suppression of ATF4/Ihh, and alleviated the TNF-α-induced ROS production and apoptosis of NP cells. On the contrary, further activating p-eIF2α aggravated the NP cell degeneration, with amplification of ATF4/Ihh and a higher level of ROS and apoptosis. Additionally, applying cyclopamine (CPE) to suppress Ihh was efficient to prevent NP cell apoptosis but did not decrease the ROS level. In an instability-induced IDD model in mice, ISRIB suppressed p-eIF2α/ATF4/Ihh and prevented IDD via protecting the anti-oxidative enzymes and decreased the NP cell apoptosis. CPE prevented NP cell apoptosis but did not affect anti-oxidative enzyme expression. Taken together, p-eIF2α/ATF4/Ihh signaling involves the ROS level and apoptosis in NP cells, the pharmacological disruption of which may provide promising methods in preventing IDD.
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Affiliation(s)
- Junping Bao
- Spine Center, The Affiliated Zhongda Hospital of Southeast University, Nanjing, China.,School of Medicine, Southeast University, Nanjing, China
| | - Zhanyang Qian
- Spine Center, The Affiliated Zhongda Hospital of Southeast University, Nanjing, China.,School of Medicine, Southeast University, Nanjing, China
| | - Lei Liu
- Spine Center, The Affiliated Zhongda Hospital of Southeast University, Nanjing, China.,School of Medicine, Southeast University, Nanjing, China
| | - Xin Hong
- Spine Center, The Affiliated Zhongda Hospital of Southeast University, Nanjing, China.,School of Medicine, Southeast University, Nanjing, China
| | - Hui Che
- Faculty of Medicine, Medical Center, Albert-Ludwigs-University of Freiburg, Freiburg im Breisgau, Germany
| | - Xiaotao Wu
- Spine Center, The Affiliated Zhongda Hospital of Southeast University, Nanjing, China.,School of Medicine, Southeast University, Nanjing, China
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Cantoni O, Zito E, Fiorani M, Guidarelli A. Arsenite impinges on endoplasmic reticulum-mitochondria crosstalk to elicit mitochondrial ROS formation and downstream toxicity. Semin Cancer Biol 2021; 76:132-138. [PMID: 34089843 DOI: 10.1016/j.semcancer.2021.06.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/31/2021] [Accepted: 06/01/2021] [Indexed: 02/08/2023]
Abstract
Arsenite is an important carcinogen and toxic compound, causing various deleterious effects through multiple mechanisms. In this review, we focused on mitochondrial ROS (mitoROS) and discussed on the mechanisms mediating their formation. The metalloid promotes direct effects in mitochondria, resulting in superoxide formation only under conditions of increased mitochondrial Ca2+ concentration ([Ca2+]m). In this perspective, the time of exposure and concentration requirements for arsenite were largely conditioned by other effects of the metalloid in specific sites of the endoplasmic reticulum (ER). Arsenite induced a slow and limited mobilization of Ca2+ from IP3R via a saturable mechanism, failing to increase the [Ca2+]m. This effect was however associated with the triggering of an intraluminal crosstalk between the IP3R and the ryanodine receptor (RyR), causing a large and concentration dependent release of Ca2+ from RyR and a parallel increase in [Ca2+]m. Thus, the Ca2+-dependent mitoO2-. formation appears to be conditioned by the spatial/functional organization of the ER/mitochondria network and RyR expression. We also speculate on the possibility that the ER stress response might regulate the above effects on the intraluminal crosstalk between the IP3R and the RyR via oxidation of critical thiols mediated by the H2O2 locally released by oxidoreductin 1α.
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Affiliation(s)
- Orazio Cantoni
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy.
| | - Ester Zito
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Mara Fiorani
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Andrea Guidarelli
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
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Non-cytotoxic dosage of fumonisin B1 aggravates ochratoxin A-induced nephrocytotoxicity and apoptosis via ROS-dependent JNK/MAPK signaling pathway. Toxicology 2021; 457:152802. [PMID: 33905761 DOI: 10.1016/j.tox.2021.152802] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 04/03/2021] [Accepted: 04/22/2021] [Indexed: 01/04/2023]
Abstract
Ochratoxin A (OTA) and fumonisin B1 (FB1), two of the most toxicologically important mycotoxins, often coexist in a variety of foodstuff and feed in humans and animals. Because of the low content of FB1 in foodstuff and feed, alone harmfulness of FB1 is often ignored. However, it is unknown whether the lower dosage of FB1 aggravates the toxicity of other mycotoxins. In this article, we aimed to investigate the effects of the lower dosage of FB1 on OTA-induced nephrotoxicity and apoptosis, and its underlying mechanism in porcine kidney cells (PK-15). Our current study showed that the non-cytotoxic concentration of FB1 (8 μM) could enhance OTA(5 μM)-induced nephrocytotoxicity and the expression of pro-apoptosis-associated genes in PK-15 cells. We also observed that the production of reactive oxygen species (ROS) was increased. However, the expression of pro-apoptosis-associated genes were down-regulated when the N-acetylcysteine (NAC), a ROS scavenger, was used in our experiment. Besides, we found that the combined toxins could increase the protein expression of p-JNK instead of p-p38 and p-ERK. Pretreatment with SP600125, a JNK inhibitor, could significantly block the promotion effects of FB1 on OTA-induced nephrocytotoxicity and apoptosis. The protein expression of p-JNK was also inhibited and the promotion effects of FB1 were significantly alleviated when NAC was used. In conclusion, the non-cytotoxic dosage of FB1 could aggravate the nephrocytotoxicity and apoptosis caused by OTA via ROS-dependent JNK/MAPK signaling pathway.
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TET-mediated DNA demethylation plays an important role in arsenic-induced HBE cells oxidative stress via regulating promoter methylation of OGG1 and GSTP1. Toxicol In Vitro 2021; 72:105075. [DOI: 10.1016/j.tiv.2020.105075] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 12/12/2020] [Accepted: 12/29/2020] [Indexed: 12/11/2022]
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Liu H, Tian Z, Guo Y, Liu X, Ma Y, Du X, Wang R, Zhang S, Shi L, Guo H, Zhang H. Microcystin-leucine arginine exposure contributes to apoptosis and follicular atresia in mice ovaries by endoplasmic reticulum stress-upregulated Ddit3. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 756:144070. [PMID: 33288253 DOI: 10.1016/j.scitotenv.2020.144070] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 11/22/2020] [Accepted: 11/22/2020] [Indexed: 06/12/2023]
Abstract
Microcystin-leucine arginine (MC-LR), an intracellular toxin to cause reproduction toxicity, is produced by blooming cyanobacteria and widely distributed in eutrophic waters. It is revealed that MC-LR-induced female reproductive toxicity is more severe than male reproductive toxicity. Previous studies mainly focused on male reproductive toxicity, and the molecular mechanisms of MC-LR-induced apoptosis, follicular atresia and infertility in female remain largely unclear. Here, it was found that MC-LR treatment could induce apoptosis, inflammation, follicular atresia, and decrease of gonadal index in mice ovaries. RNA-Seq data showed that the up-regulation of DNA-damage inducible transcript 3 (Ddit3) under endoplasmic reticulum (ER) stress had predominantly regulatory role in MC-LR-induced apoptotic pathway. Furthermore, MC-LR exposure promoted cleavage of activating transcription factor 6 (ATF6, 50kd), inositol-requiring enzyme 1 (Ire1) expression, phosphorylation of IRE1, mitogen-activated protein kinase 5 (Map3k5) and Ddit3 expression, which was accompanied by the upregulation of death receptor 5 (Dr5) and active-caspase-3, and a decrease in Bcl-2 expression. ER stress inhibitor 4-Phenyl butyric acid (4-PBA) ameliorated these MC-LR-induced changes in protein or mRNA level. More importantly, knockdown of Ddit3 suppressed MC-LR-induced cell apoptosis and follicular atresia by directly regulating Dr5 and Bcl-2. Additionally, it was also found that MC-LR increased Map3k5 phosphorylation by inhibiting protein phosphatase 2A (PP2A) activity, and then promoted Ddit3 expression. In short, our data suggests that Ddit3 promotes MC-LR-induced mice ovarian cells apoptosis and follicular atresia via ER stress activation, which provides a new insight into the relation between infertility in females and the emerging water pollutant MC-LR.
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Affiliation(s)
- Haohao Liu
- College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Zhihui Tian
- College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Yaxin Guo
- School of Basic Medical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Xiaohui Liu
- School of Basic Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, Henan, China
| | - Ya Ma
- College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Xingde Du
- College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Rui Wang
- College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Shiyu Zhang
- College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Linjia Shi
- College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Hongxiang Guo
- College of Life Sciences, Henan Agricultural University, Zhengzhou 450002, Henan, China.
| | - Huizhen Zhang
- College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China.
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Inesta-Vaquera F, Navasumrit P, Henderson CJ, Frangova TG, Honda T, Dinkova-Kostova AT, Ruchirawat M, Wolf CR. Application of the in vivo oxidative stress reporter Hmox1 as mechanistic biomarker of arsenic toxicity. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 270:116053. [PMID: 33213951 DOI: 10.1016/j.envpol.2020.116053] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 10/02/2020] [Accepted: 11/06/2020] [Indexed: 05/26/2023]
Abstract
Inorganic arsenic (iAs) is a naturally occurring metalloid present in drinking water and polluted air exposing millions of people globally. Epidemiological studies have linked iAs exposure to the development of numerous diseases including cognitive impairment, cardiovascular failure and cancer. Despite intense research, an effective therapy for chronic arsenicosis has yet to be developed. Laboratory studies have been of great benefit in establishing the pathways involved in iAs toxicity and providing insights into its mechanism of action. However, the in vivo analysis of arsenic toxicity mechanisms has been difficult by the lack of reliable in vivo biomarkers of iAs's effects. To address this issue we have applied the use of our recently developed stress reporter models to study iAs toxicity. The reporter mice Hmox1 (oxidative stress/inflammation; HOTT) and p21 (DNA damage) were exposed to iAs at acute and chronic, environmentally relevant, doses. We observed induction of the oxidative stress reporters in several cell types and tissues, which was largely dependent on the activation of transcription factor NRF2. We propose that our HOTT reporter model can be used as a surrogate biomarker of iAs-induced oxidative stress, and it constitutes a first-in-class platform to develop treatments aimed to counteract the role of oxidative stress in arsenicosis. Indeed, in a proof of concept experiment, the HOTT reporter mice were able to predict the therapeutic utility of the antioxidant N-acetyl cysteine in the prevention of iAs associated toxicity.
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Affiliation(s)
- Francisco Inesta-Vaquera
- Department of Systems Medicine. School of Medicine. University of Dundee, Ninewells Hospital, Dundee, DD1 9SY, UK.
| | - Panida Navasumrit
- Laboratory of Environmental Toxicology, Chulabhorn Research Institute, Bangkok, 10210, Thailand
| | - Colin J Henderson
- Department of Systems Medicine. School of Medicine. University of Dundee, Ninewells Hospital, Dundee, DD1 9SY, UK
| | - Tanya G Frangova
- Department of Systems Medicine. School of Medicine. University of Dundee, Ninewells Hospital, Dundee, DD1 9SY, UK
| | - Tadashi Honda
- Department of Chemistry and Institute of Chemical Biology & Drug Discovery, Stony Brook University, Stony Brook, NY, 11794-3400, USA
| | - Albena T Dinkova-Kostova
- Department of Molecular Medicine. School of Medicine. University of Dundee, Ninewells Hospital, Dundee, DD1 9SY, UK
| | - Mathuros Ruchirawat
- Laboratory of Environmental Toxicology, Chulabhorn Research Institute, Bangkok, 10210, Thailand
| | - C Roland Wolf
- Department of Systems Medicine. School of Medicine. University of Dundee, Ninewells Hospital, Dundee, DD1 9SY, UK
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