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Zhang L, Li N, Zhang X, Wu H, Yu S. Hexavalent chromium caused DNA damage repair and apoptosis via the PI3K/AKT/FOXO1 pathway triggered by oxidative stress in the lung of rat. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 267:115622. [PMID: 37890257 DOI: 10.1016/j.ecoenv.2023.115622] [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: 08/24/2023] [Revised: 10/17/2023] [Accepted: 10/21/2023] [Indexed: 10/29/2023]
Abstract
Hexavalent chromium [Cr(VI)] is an occupational carcinogen that accumulates in the lungs and causes lung injury and even lung cancer. 36 SD male rats received inhalable intratracheal instillation of Cr(VI) (0.05, 0.25 mg Cr/kg) or the same volume (3 ml/kg) of normal saline weekly for 28 days (total 5 times). After 28 days of exposure, half of the rats in each group were sacrificed for investigation, and the rest stopped exposure and began to be self-repaired for two weeks. Histopathology analyses revealed that Cr(VI) induced slight dilatation and hemorrhage of perialveolar capillaries, pulmonary bronchodilation, and congestion with peripheral flaky-like necrosis accompanied by inflammatory cell infiltration, especially the 0.25 mg Cr/kg group. Cr(VI) exposure caused the increase of blood Cr, urinary Cr, MDA, urinary 8-hydroxy-2' -deoxyguanosine (8-OHdG), and the decrease of GSH and MDA, while two-week repair only reduced urinary Cr. Exposure to Cr(VI) significantly upregulated FOXO1 and downregulated p-AKT and p-FOXO1 for two weeks. PI3K in the 0.25 mg Cr/kg group was inhibited after two weeks of repair. Cr(VI) exposure mainly promoted GADD45a and CHK2 in the exposure group, promoted Bim, Bax/Bcl-2, and suppressed Bcl-2 and Bcl-xL in the repair group. These results demonstrate that Cr(VI) may induce DNA damage repair and apoptosis in the lung by activating the PI3K/AKT/FOXO1 pathway. Two-week repair may alleviate oxidative stress and DNA damage induced by Cr(VI) exposure but couldn't eliminate its effects. This study provides a new perspective for exploring the Cr(VI) induced lung cancer mechanism.
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Affiliation(s)
- Lixia Zhang
- Department of Scientific Research, Henan Medical College, Zhengzhou City, Henan Province 451191, China; School of Public Health, Zhengzhou University, Zhengzhou City, Henan Province 450001, China
| | - Ningning Li
- Department of Scientific Research, Henan Medical College, Zhengzhou City, Henan Province 451191, China
| | - Xiuzhi Zhang
- Department of Pathology, Henan Medical College, Zhengzhou City, Henan Province 451191, China
| | - Hui Wu
- Henan Institute for Occupational Medicine, Zhengzhou City, Henan Province 450052, China
| | - Shanfa Yu
- Department of Scientific Research, Henan Medical College, Zhengzhou City, Henan Province 451191, China.
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2
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Moore XTR, Gheghiani L, Fu Z. The Role of Polo-Like Kinase 1 in Regulating the Forkhead Box Family Transcription Factors. Cells 2023; 12:cells12091344. [PMID: 37174744 PMCID: PMC10177174 DOI: 10.3390/cells12091344] [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: 03/28/2023] [Revised: 05/01/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023] Open
Abstract
Polo-like kinase 1 (PLK1) is a serine/threonine kinase with more than 600 phosphorylation substrates through which it regulates many biological processes, including mitosis, apoptosis, metabolism, RNA processing, vesicle transport, and G2 DNA-damage checkpoint recovery, among others. Among the many PLK1 targets are members of the FOX family of transcription factors (FOX TFs), including FOXM1, FOXO1, FOXO3, and FOXK1. FOXM1 and FOXK1 have critical oncogenic roles in cancer through their antagonism of apoptotic signals and their promotion of cell proliferation, metastasis, angiogenesis, and therapeutic resistance. In contrast, FOXO1 and FOXO3 have been identified to have broad functions in maintaining cellular homeostasis. In this review, we discuss PLK1-mediated regulation of FOX TFs, highlighting the effects of PLK1 on the activity and stability of these proteins. In addition, we review the prognostic and clinical significance of these proteins in human cancers and, more importantly, the different approaches that have been used to disrupt PLK1 and FOX TF-mediated signaling networks. Furthermore, we discuss the therapeutic potential of targeting PLK1-regulated FOX TFs in human cancers.
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Affiliation(s)
- Xavier T R Moore
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Lilia Gheghiani
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Zheng Fu
- Department of Human and Molecular Genetics, VCU Institute of Molecular Medicine, Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA 23298, USA
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Bai K, Hao E, Huang CX, Yue QX, Wang DH, Shi L, Chen YF, Chen H, Huang RL. Melatonin alleviates ovarian function damage and oxidative stress induced by dexamethasone in the laying hens through FOXO1 signaling pathway. Poult Sci 2023; 102:102745. [PMID: 37302326 PMCID: PMC10276286 DOI: 10.1016/j.psj.2023.102745] [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: 03/01/2023] [Revised: 04/11/2023] [Accepted: 04/19/2023] [Indexed: 06/13/2023] Open
Abstract
Oxidative stress can trigger follicular atresia, and decrease follicles quantity in each development stage, thereby alleviating reproductive activity. The induction of oxidative stress in chickens through intraperitoneal injection of dexamethasone is a reliable and stable method. Melatonin has been shown to mitigate oxidative stress in this model, but the underlying mechanism remains unclear. Therefore, this study aimed to investigate whether melatonin can recover aberrant antioxidant status induced by dexamethasone and the specific mechanism behind melatonin-dependent protection. A total of 150 healthy 40-wk-old Dawu Jinfeng laying hens with similar body weights and laying rates were randomly divided into three groups, with five replicates per group and 10 hens per replicate. The hens in the control group (NS) received intraperitoneal injections of normal saline for 30 d, the dexamethasone group (Dex+NS) received 20 mg/kg dose of dexamethasone for the first 15 d, followed by the 15 d of normal saline treatment. While in the melatonin group (Dex+Mel), dexamethasone (20 mg/kg dose) was injected intraperitoneally in the first 15 d, and melatonin (20 mg/kg/d) was injected in the last 15 d. The results showed that dexamethasone treatment significantly enhanced oxidative stress (P < 0.05), while melatonin not only inhibited the oxidative stress but also notably enhanced the antioxidant enzymes superoxide dismutase (SOD), catalase activity (CAT), glutathione peroxidase (GSH-Px), and antioxidant genes CAT, superoxide dismutase 1 (SOD1), glutathione peroxidase 3 (GPX3), and recombinant peroxiredoxin 3 (PRDX3) expression (P < 0.05). Melatonin treatment also markedly reduced 8-hydroxy deoxyguanosine (8-OHdG), malondialdehyde (MDA), and reactive oxygen species (ROS) levels (P < 0.05) and apoptotic genes Caspase-3, Bim, and Bax in the follicle. In the Dex+Mel group, the Bcl-2 and SOD1 protein levels were also increased (P < 0.05). Melatonin inhibited the forkhead Box Protein O1 (FOXO1) gene and its protein expression (P < 0.05). In general, this investigation revealed that melatonin might decrease oxidative stress and ROS by enhancing antioxidant enzymes and genes, activating the antiapoptotic genes, and inhibiting the FOXO1 pathway in laying hens.
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Affiliation(s)
- Kang Bai
- College of Animal Science and Technology, Hebei Agricultural University, Baoding Hebei 071001, China
| | - Erying Hao
- College of Animal Science and Technology, Hebei Agricultural University, Baoding Hebei 071001, China
| | - Chen-Xuan Huang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding Hebei 071001, China; Department of Animal Nutrition and Management, Swedish University of Agricultural Science, Uppsala 75007, Sweden
| | - Qiao-Xian Yue
- College of Animal Science and Technology, Hebei Agricultural University, Baoding Hebei 071001, China; Department of Animal Breeding and Genetics, Swedish University of Agricultural Science, Uppsala 75007, Sweden
| | - De-He Wang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding Hebei 071001, China
| | - Lei Shi
- College of Animal Science and Technology, Hebei Agricultural University, Baoding Hebei 071001, China
| | - Yi-Fan Chen
- College of Animal Science and Technology, Hebei Agricultural University, Baoding Hebei 071001, China
| | - Hui Chen
- College of Animal Science and Technology, Hebei Agricultural University, Baoding Hebei 071001, China.
| | - Ren-Lu Huang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding Hebei 071001, China
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4
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Filetti V, Lombardo C, Loreto C, Dounias G, Bracci M, Matera S, Rapisarda L, Rapisarda V, Ledda C, Vitale E. Small RNA-Seq Transcriptome Profiling of Mesothelial and Mesothelioma Cell Lines Revealed microRNA Dysregulation after Exposure to Asbestos-like Fibers. Biomedicines 2023; 11:biomedicines11020538. [PMID: 36831074 PMCID: PMC9953340 DOI: 10.3390/biomedicines11020538] [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: 12/30/2022] [Revised: 02/06/2023] [Accepted: 02/10/2023] [Indexed: 02/15/2023] Open
Abstract
Environmental exposure to fibers of respirable size has been identified as a risk for public health. Experimental evidence has revealed that a variety of fibers, including fluoro-edenite, can develop chronic respiratory diseases and elicit carcinogenic effects in humans. Fluoro-edenite (FE) is a silicate mineral first found in Biancavilla (Sicily, Italy) in 1997. Environmental exposure to its fibers has been correlated with a cluster of malignant pleural mesotheliomas. This neoplasm represents a public health problem due to its long latency and to its aggression not alerted by specific symptoms. Having several biomarkers providing us with data on the health state of those exposed to FE fibers or allowing an early diagnosis on malignant pleural mesothelioma, still asymptomatic patients, would be a remarkable goal. To these purposes, we reported the miRNA transcriptome in human normal mesothelial cell line (MeT-5A) and in the human malignant mesothelioma cell line (JU77) exposed and not exposed to FE fibers. The results showed a difference in the number of deregulated miRNAs between tumor and nontumor samples both exposed and not exposed to FE fibers. As a matter of fact, the effect of exposure to FE fibers is more evident in the expression of miRNA in the tumor samples than in the nontumor samples. In the present paper, several pathways involved in the pathogenesis of malignant pleural mesothelioma have been analyzed. We especially noticed the involvement of pathways that have important functions in inflammatory processes, angiogenesis, apoptosis, and necrosis. Besides this amount of data, further studies will be designed for the selection of the most significant miRNAs to test and validate their diagnostic potential, alone or in combination with other protein biomarkers, in high-risk individuals' liquid biopsy to have a noninvasive tool of diagnosis for this neoplasm.
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Affiliation(s)
- Veronica Filetti
- Occupational Medicine, Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy
- Human Anatomy and Histology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - Claudia Lombardo
- Human Anatomy, Department of Medical and Surgical Sciences and Advanced Technologies, University of Catania, 95123 Catania, Italy
| | - Carla Loreto
- Human Anatomy and Histology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - George Dounias
- Department of Occupational and Environmental Health, University of West Attica, 10563 Athens, Greece
| | - Massimo Bracci
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126 Ancona, Italy
| | - Serena Matera
- Occupational Medicine, Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy
| | - Lucia Rapisarda
- Occupational Medicine, Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy
| | - Venerando Rapisarda
- Occupational Medicine, Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy
- Correspondence:
| | - Caterina Ledda
- Occupational Medicine, Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy
| | - Ermanno Vitale
- Occupational Medicine, Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy
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Bernardo VS, Torres FF, da Silva DGH. FoxO3 and oxidative stress: a multifaceted role in cellular adaptation. J Mol Med (Berl) 2023; 101:83-99. [PMID: 36598531 DOI: 10.1007/s00109-022-02281-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 12/14/2022] [Accepted: 12/16/2022] [Indexed: 01/05/2023]
Abstract
Oxidative stress is a major cause of morbidity and mortality in human health and disease. In this review, we focus on the Forkhead Box (Fox) subclass O3 (FoxO3), an extensively studied transcription factor that plays a pleiotropic role in a wide range of physiological and pathological processes by regulating multiple gene regulatory networks involved in the modulation of numerous aspects of cellular metabolism, including fuel metabolism, cell death, and stress resistance. This review will also focus on regulatory mechanisms of FoxO3 expression and activity, such as crucial post-translational modifications and non-coding RNAs. Moreover, this work discusses and evidences some pathways to how this transcription factor and reactive oxygen species regulate each other, which may lead to the pathogenesis of various types of diseases. Therefore, in addition to being a promising therapeutic target, the FoxO3-regulated signaling pathways can also be used as reliable diagnostic and prognostic biomarkers and indicators for drug responsiveness.
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Affiliation(s)
| | | | - Danilo Grünig Humberto da Silva
- Department of Biology, Universidade Estadual Paulista (UNESP), São Paulo, Brazil.
- Campus de Três Lagoas, Universidade Federal de Mato Grosso Do Sul (CPTL/UFMS), Avenida Ranulpho Marques Leal, 3484, Três Lagoas, Mato Grosso Do Sul, Distrito Industrial-Post code 79613-000, Brazil.
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6
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Xie Q, Hua X, Huang C, Liao X, Tian Z, Xu J, Zhao Y, Jiang G, Huang H, Huang C. SOX2 Promotes Invasion in Human Bladder Cancers through MMP2 Upregulation and FOXO1 Downregulation. Int J Mol Sci 2022; 23:ijms232012532. [PMID: 36293387 PMCID: PMC9604292 DOI: 10.3390/ijms232012532] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/03/2022] [Accepted: 10/11/2022] [Indexed: 11/16/2022] Open
Abstract
SOX2, a member of the SRY-related HMG-box (SOX) family, is abnormally expressed in many tumors and associated with cancer stem cell-like properties. Previous reports have shown that SOX2 is a biomarker for cancer stem cells in human bladder cancer (BC), and our most recent study has indicated that the inhibition of SOX2 by anticancer compound ChlA-F attenuates human BC cell invasion. We now investigated the mechanisms through which SOX2 promotes the invasive ability of BC cells. Our studies revealed that SOX2 promoted SKP2 transcription and increased SKP2-accelerated Sp1 protein degradation. As Sp1 is a transcriptionally regulated gene, HUR transcription was thereby attenuated, and, in the absence of HUR, FOXO1 mRNA was degraded fast, which promoted BC cell invasion. In addition, SOX2 promoted BC invasion through the upregulation of nucleolin transcription, which resulted in increased MMP2 mRNA stability and expression. Collectively, our findings show that SOX2 promotes BC invasion through both SKP2-Sp1-HUR-FOXO1 and nucleolin-MMP2 dual axes.
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Affiliation(s)
- Qipeng Xie
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325000, China
- Department of Clinical Laboratory, The Second Affiliated Hospital & Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325035, China
| | - Xiaohui Hua
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325000, China
| | - Chao Huang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Correspondence: (C.H.); (C.H.); Tel.: +86-135-2288-7554 (Chuanshu Huang)
| | - Xin Liao
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zhongxian Tian
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325000, China
| | - Jiheng Xu
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325000, China
| | - Yunping Zhao
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325000, China
| | - Guosong Jiang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Haishan Huang
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325000, China
| | - Chuanshu Huang
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325000, China
- Correspondence: (C.H.); (C.H.); Tel.: +86-135-2288-7554 (Chuanshu Huang)
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7
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Dysregulation of microRNAs and tRNA-derived ncRNAs in mesothelial and mesothelioma cell lines after asbestiform fiber exposure. Sci Rep 2022; 12:9181. [PMID: 35654808 PMCID: PMC9163335 DOI: 10.1038/s41598-022-13044-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 05/19/2022] [Indexed: 11/09/2022] Open
Abstract
Experimental evidence demonstrated that fluoro-edenite (FE) can develop chronic respiratory diseases and elicit carcinogenic effects. Environmental exposure to FE fibers is correlated with malignant pleural mesothelioma (MPM). An early diagnosis of MPM, and a comprehensive health monitoring of the patients exposed to FE fibers are two clinical issues that may be solved by the identification of specific biomarkers. We reported the microRNA (miRNA) and transfer RNA-derived non coding RNA (tRNA-derived ncRNA) transcriptome in human normal mesothelial and malignant mesothelioma cell lines exposed or not exposed to several concentration FE fibers. Furthermore, an interactive mesothelioma-based network was derived by using NetME tool. In untreated condition, the expression of miRNAs and tRNA-derived ncRNAs in tumor cells was significantly different with respect to non-tumor samples. Moreover, interesting and significant changes were found after the exposure of both cells lines to FE fibers. The network-based pathway analysis showed several signaling and metabolic pathways potentially involved in the pathogenesis of MPM. From papers analyzed by NetME, it is clear that many miRNAs can positively or negatively influence various pathways involved in MPM. For the first time, the analysis of tRNA-derived ncRNAs molecules in the context of mesothelioma has been made by using in vitro systems. Further studies will be designed to test and validate their diagnostic potential in high-risk individuals' liquid biopsies.
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8
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Sun WL, He LY, Liang L, Liu SY, Luo J, Lv ML, Cai ZW. Ambra1 regulates apoptosis and chemosensitivity in breast cancer cells through the Akt-FoxO1-Bim pathway. Apoptosis 2022; 27:329-341. [PMID: 35257265 DOI: 10.1007/s10495-022-01718-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2022] [Indexed: 11/24/2022]
Abstract
The sensitivity of cells to chemotherapeutic agents has a major effect on disease outcome in breast cancer patients. Unfortunately, there are numerous factors involved in the regulation of chemosensitivity, and the mechanisms need to be further investigated. Autophagy/Beclin 1 regulator 1 (Ambra1) is a key protein in the crosstalk between autophagy and apoptosis. It controls the switch between these two processes, which determines whether cells survive or die. Induction of apoptosis is the primary mechanism by which most chemotherapeutic drugs eliminate cancer cells. Recently, Ambra1 has been shown to modulate paclitaxel-induced apoptosis in breast cancer cells via the Bim/mitochondrial pathway, thereby modifying the sensitivity of cells to paclitaxel. However, how Ambra1 regulates Bim expression remains unclear. Here, we further confirmed that Bim plays an indispensable role in Ambra1's regulation of apoptosis and chemosensitivity in breast cancer cells. Furthermore, Ambra1 was found to regulate Bim expression at the transcriptional level through the Akt-FoxO1 pathway. Therefore, we propose a novel pathway, Ambra1-Akt-FoxO1-Bim, which regulates apoptosis and chemosensitivity in breast cancer cells. Thus, Ambra1 may represent a potential target for breast cancer treatment.
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Affiliation(s)
- Wei-Liang Sun
- Department of Medical Oncology, the Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedonglu Road, Nanning, 530007, Guangxi, People's Republic of China.
| | - Ling-Yan He
- Department of Medical Oncology, the Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedonglu Road, Nanning, 530007, Guangxi, People's Republic of China
| | - Li Liang
- Department of Medical Oncology, the Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedonglu Road, Nanning, 530007, Guangxi, People's Republic of China
| | - Si-Yu Liu
- Department of Medical Oncology, the Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedonglu Road, Nanning, 530007, Guangxi, People's Republic of China
| | - Jie Luo
- Department of Medical Oncology, the Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedonglu Road, Nanning, 530007, Guangxi, People's Republic of China
| | - Mei-Ling Lv
- Department of Medical Oncology, the Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedonglu Road, Nanning, 530007, Guangxi, People's Republic of China
| | - Zheng-Wen Cai
- Department of Medical Oncology, the Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedonglu Road, Nanning, 530007, Guangxi, People's Republic of China
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9
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Lee S, Yamamoto S, Srinivas B, Shimizu Y, Sada N, Yoshitome K, Ito T, Kumagai-Takei N, Nishimura Y, Otsuki T. Increased production of matrix metalloproteinase-7 (MMP-7) by asbestos exposure enhances tissue migration of human regulatory T-like cells. Toxicology 2021; 452:152717. [PMID: 33581214 DOI: 10.1016/j.tox.2021.152717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 01/11/2021] [Accepted: 02/06/2021] [Indexed: 11/29/2022]
Abstract
The effects of asbestos on immunocompetent cells have been investigated. In particular, attention was paid to regulatory T cell function, which was observed using the HTLV-1 immortalized human polyclonal T cell line MT-2. Exposure to asbestos (approximately more than 25 μg/mL for 1-3 day) induced apoptosis, and we observed an increase in regulatory T cell function and acceleration of the cell cycle with continuous exposure to low concentrations of asbestos (5-10 μg/mL for more than eight months). Furthermore, cDNA microarray analysis in this study revealed that expression of matrix metalloproteinase-7 (MMP-7) was markedly higher in exposed sublines compared to original MT-2 cells. It was determined that MMP-7 had no effect on Treg function, as determined by examination of sublines and by addition of recombinant MMP-7 and neutralizing antibodies or inhibitors of MMP-7. However, when examining melting of the extracellular matrix (an MMP-7-mediated event) or the extent to which the MT-2 parent strain or long-term exposed subline cells pass through a fibronectin-coated filter, more filter passes were observed for the subline. These results suggest that the effect of asbestos fibers on Treg cells results in excessive migration of the tumor microenvironment through hypersecretion of MMP-7 together with an increase in suppressive function and enhancement of cell cycle progression. Therefore, one possible way to prevent the development of asbestos-induced cancer is to reduce the function (including MMP-7 production) or amount of Treg cells by physiologically active substances or food ingredients. Alternatively, it may be possible to invoke immune checkpoint treatments when carcinogenesis occurs.
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Affiliation(s)
- Suni Lee
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan.
| | - Shoko Yamamoto
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan.
| | - Bandaru Srinivas
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan.
| | - Yurika Shimizu
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan; Department of Pathophysiology-Periodontal Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan.
| | - Nagisa Sada
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan; Department of Biophysical Chemistry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, 700-8530, Okayama, Japan.
| | - Kei Yoshitome
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan.
| | - Tatsuo Ito
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan.
| | - Naoko Kumagai-Takei
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan.
| | - Yasumitsu Nishimura
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan.
| | - Takemi Otsuki
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan.
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10
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The Effects of Asbestos Fibers on Human T Cells. Int J Mol Sci 2020; 21:ijms21196987. [PMID: 32977478 PMCID: PMC7584019 DOI: 10.3390/ijms21196987] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 09/14/2020] [Accepted: 09/22/2020] [Indexed: 01/20/2023] Open
Abstract
Asbestos exposure causes malignant tumors such as lung cancer and malignant mesothelioma. The effects of asbestos fibers on immunocompetent cells, however, have not been well studied. Asbestos physically comprises a fibrous substance, which differs from silica particles which are a particulate substance, although chemically it is a mineral silicate. Since silicosis patients previously exposed to silica particles often suffer from lung and autoimmune diseases, it is clear that silica exposure impairs immune tolerance. Similarly, asbestos may alter the immune system in asbestos-exposed individuals. Given that malignant tumors can result following exposure to asbestos, the attenuation of anti-tumor immunity in cases of asbestos exposure is an important area of investigation. We observed the effect of asbestos fibers on T lymphocytes, such as CD8+ cytotoxic T lymphocytes (CTLs), CD4+ helper T (Th), and regulatory T (Treg) cells, and showed that anti-tumor immunity was attenuated, as demonstrated in a system that stimulates fresh cells isolated from peripheral blood in vitro and a system that is continuously exposed to a cell line. In this manuscript, we introduce the experiments and results of studies on CTLs, as well as Th and Treg cells, and discuss how future changes in immunocompetent cells induced by asbestos fibers can be clinically linked.
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Yamamoto S, Lee S, Matsuzaki H, Kumagai-Takei N, Yoshitome K, Sada N, Shimizu Y, Ito T, Nishimura Y, Otsuki T. Enhanced expression of nicotinamide nucleotide transhydrogenase (NNT) and its role in a human T cell line continuously exposed to asbestos. ENVIRONMENT INTERNATIONAL 2020; 138:105654. [PMID: 32187573 DOI: 10.1016/j.envint.2020.105654] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 03/08/2020] [Accepted: 03/09/2020] [Indexed: 06/10/2023]
Abstract
The effects of asbestos fibers on human immune cells have not been well documented. We have developed a continuously exposed cell line model using the human T-lymphotropic virus 1 (HTLV-1)-immortalized human T cell line MT-2. Sublines continuously exposed to chrysotile (CH) or crocidolite (CR) showed acquired resistance to asbestos-induced apoptosis following transient and high-dose re-exposure with fibers. These sublines in addition to other immune cells such as natural killer cells or cytotoxic T lymphocytes exposed to asbestos showed a reduction in anti-tumor immunity. In this study, the expression of genes and molecules related to antioxidative stress was examined. Furthermore, complexes related to oxidative phosphorylation were investigated since the production of reactive oxygen species (ROS) is important when considering the effects of asbestos in carcinogenesis and the mechanisms involved in resistance to asbestos-induced apoptosis. In sublines continuously exposed to CH or CR, the expression of thioredoxin decreased. Interestingly, nicotinamide nucleotide transhydrogenase (NNT) expression was markedly enhanced. Thus, knockdown of NNT was then performed. Although the knockdown clones did not show any changes in proliferation or occurrence of apoptosis, these clones showed recovery of ROS production with returning NADPH/NADP+ ratio that increased with decreased production of ROS in continuously exposed sublines. These results indicated that NNT is a key factor in preventing ROS-induced cytotoxicity in T cells continuously exposed to asbestos. Considering that these sublines showed a reduction in anti-tumor immunity, modification of NNT may contribute to recovery of the anti-tumor effects in asbestos-exposed T cells.
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Affiliation(s)
- Shoko Yamamoto
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 7010192 Okayama, Japan
| | - Suni Lee
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 7010192 Okayama, Japan
| | - Hidenori Matsuzaki
- Department of Life Science, Faculty of Life and Environmental Science, Prefectural University of Hiroshima, Shobara, Hiroshima 727-0023, Japan
| | - Naoko Kumagai-Takei
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 7010192 Okayama, Japan
| | - Kei Yoshitome
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 7010192 Okayama, Japan
| | - Nagisa Sada
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 7010192 Okayama, Japan; Department of Biophysical Chemistry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8530, Japan
| | - Yurika Shimizu
- Department of Pathophysiology-Periodontal Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Tastsuo Ito
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 7010192 Okayama, Japan
| | - Yasumitsu Nishimura
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 7010192 Okayama, Japan
| | - Takemi Otsuki
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 7010192 Okayama, Japan.
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12
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Piao XY, Li W, Li Z, Zhang N, Fang H, Zahid D, Qu Q. Forced FoxO1:S 249V expression suppressed glioma cell proliferation through G2/M cell cycle arrests and increased apoptosis. Neurol Res 2018; 41:189-198. [PMID: 30453847 DOI: 10.1080/01616412.2018.1548724] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
OBJECTIVE Forkhead box O1 (FoxO1) plays a crucial role in the development of many tumors. Cyclin D kinase (CDK) 1 could influence the nuclear export and activity of FoxO1 through phosphorylation of serine (S)249. However, the effects of S249 phosphorylation in the development of glioma remain unclear. The aim of the present study is to assess the function of FoxO1:S249V mutant, which was converted S249 phosphorylation site into valine (V) residues in the glioma development. METHODS FoxO1-knockdown U251 glioma cells (U251-KD cells) were established by infection of retrovirus particles with FoxO1 siRNA and FoxO1 restored cells (FoxO1:S249V) were obtained by re-introduction of FoxO1:S249V cDNA. We detected mRNA expression by real-time PCR, and cell cycle arrest and apoptosis by flow cytometric assay, and cell proliferation by BrdU assay and CCK-8 assay. The protective effects of FoxO1:S249V were detected by the xenograft tumor formation assay. RESULTS The FoxO1 mRNA expression was significantly decreased in the glioma specimens (n = 24). The U251-KD cells showed downregulation of p27 and Bim, while the phosphorylation of CDK1 was upregulated. FoxO1:S249V cells inhibited the phosphorylation of S249, and induced G2/M cell cycle arrest, following reduced cell growth and increased apoptosis. Moreover, FoxO1:S249V expression effectively inhibits the glioma growth. CONCLUSION Our findings suggest that the forced FoxO1:S249V suppressed the cell growth through G2/M cell cycle arrests and increased apoptosis in glioma.
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Affiliation(s)
- Xiang-Yu Piao
- a Department of Neurology, Department of Neurology , the First Affiliated Hospital of Xi'an Jiaotong University , Xi'an , China
| | - Wenzhe Li
- b College of Basic Medical Sciences , Dalian Medical University , Dalian , China
| | - Zhi Li
- c Clinical Laboratory , Dalian Municipal Central Hospital , Dalian city , Liaoning China
| | - Nianzhu Zhang
- b College of Basic Medical Sciences , Dalian Medical University , Dalian , China
| | - Hui Fang
- b College of Basic Medical Sciences , Dalian Medical University , Dalian , China
| | - Danish Zahid
- b College of Basic Medical Sciences , Dalian Medical University , Dalian , China
| | - Qiumin Qu
- a Department of Neurology, Department of Neurology , the First Affiliated Hospital of Xi'an Jiaotong University , Xi'an , China
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13
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Satoh T, Tatsuta T, Sugawara S, Hara A, Hosono M. Synergistic anti-tumor effect of bullfrog sialic acid-binding lectin and pemetrexed in malignant mesothelioma. Oncotarget 2018; 8:42466-42477. [PMID: 28476017 PMCID: PMC5522080 DOI: 10.18632/oncotarget.17198] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 04/06/2017] [Indexed: 12/26/2022] Open
Abstract
Malignant mesothelioma is an aggressive cancer with limited therapeutic options. Sialic acid-binding lectin isolated from Rana catesbeiana oocytes (cSBL) is a multifunctional protein with anti-cancer activity. The effects of pemetrexed, cisplatin, and cSBL were evaluated in mesothelioma and normal mesothelial cell lines. We evaluated cytotoxicity, apoptosis, caspase-3 cleavage and activation, cell proliferation, cell cycle arrest, and levels of cell cycle proteins in H28 cells treated with pemetrexed, cisplatin, and cSBL alone or in combination. Treatment with cSBL alone was cytotoxic to mesothelioma cells. The anti-cancer effect of cSBL was observed in a broader range of cell lines and exhibited greater cancer cell selectivity than pemetrexed or cisplatin. Combination treatment with pemetrexed + cSBL resulted in greater dose-dependent cytotoxicity than pemetrexed + cisplatin, the standard of care in mesothelioma. The synergistic effect of pemetrexed + cSBL was mediated by the cytostatic effect of pemetrexed and the cytotoxic effect of cSBL. It thus appears that cSBL has therapeutic potential for the treatment of mesothelioma.
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Affiliation(s)
- Toshiyuki Satoh
- Department of Clinical Pharmacotherapeutics, Tohoku Medical and Pharmaceutical University, Aobaku, Sendai, Miyagi 981-8558, Japan.,Division of Cell Recognition Study, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Aobaku, Sendai, Miyagi 981-8558, Japan
| | - Takeo Tatsuta
- Division of Cell Recognition Study, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Aobaku, Sendai, Miyagi 981-8558, Japan
| | - Shigeki Sugawara
- Division of Cell Recognition Study, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Aobaku, Sendai, Miyagi 981-8558, Japan
| | - Akiyoshi Hara
- Department of Clinical Pharmacotherapeutics, Tohoku Medical and Pharmaceutical University, Aobaku, Sendai, Miyagi 981-8558, Japan
| | - Masahiro Hosono
- Division of Cell Recognition Study, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Aobaku, Sendai, Miyagi 981-8558, Japan
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14
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Kumagai-Takei N, Yamamoto S, Lee S, Maeda M, Masuzzaki H, Sada N, Yu M, Yoshitome K, Nishimura Y, Otsuki T. Inflammatory Alteration of Human T Cells Exposed Continuously to Asbestos. Int J Mol Sci 2018; 19:E504. [PMID: 29419731 PMCID: PMC5855726 DOI: 10.3390/ijms19020504] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 02/05/2018] [Accepted: 02/06/2018] [Indexed: 01/03/2023] Open
Abstract
Asbestos is a known carcinogen and exposure can lead to lung cancer and malignant mesothelioma. To examine the effects of asbestos fibers on human immune cells, the human T cell leukemia/lymphoma virus (HTLV)-1 immortalized human T cell line MT-2 was employed. Following continuous exposure to asbestos fibers for more than eight months, MT-2 sublines showed acquisition of resistance to asbestos-induced apoptosis with decreased death signals and increased surviving signals. These sublines showed various characteristics that suggested a reduction in anti-tumor immunity. On the other hand, inflammatory changes such as expression of MMP7, CXCR5, CXCL13 and CD44 was found to be markedly higher in sublines continuously exposed to asbestos compared with original MT-2 cells. All of these molecules contribute to lung inflammation, T and B cell interactions and connections between mesothelial cells and T cells. Thus, further investigation focusing on these molecules may shed light on the role of chronic inflammation caused by asbestos exposure and the occurrence of malignant mesothelioma. Finally, regarding peripheral T cells from healthy donors (HD) and asbestos-exposed patients with pleural plaque (PP) or malignant pleural mesothelioma (MPM), following stimulation of CD4+ T cells, T cells from MPM patients showed reduced potential of interferon (IFN)-γ expression. Moreover, levels of interleukin (IL)-6, one of the most important cytokines in chronic inflammation, in cultured supernatants were higher in PP and MPM patients compared with HD. Overall, asbestos-induced chronic inflammation in the lung as well as the pleural cavity may facilitate the onset of asbestos-induced cancers due to alterations in the interactions among fibers, immune cells such as T and B cells and macrophages, and mesothelial and lung epithelial cells. Further investigations regarding chronic inflammation caused by asbestos fibers may assist in identifying molecular targets for preventive and therapeutic strategies related to the effects of asbestos exposure.
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Affiliation(s)
- Naoko Kumagai-Takei
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama 701-0192, Japan.
| | - Shoko Yamamoto
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama 701-0192, Japan.
| | - Suni Lee
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama 701-0192, Japan.
| | - Megumi Maeda
- Department of Biofunctional Chemistry, Division of Bioscience, Okayama University Graduate School of Natural Science and Technology, 1-1-1 Tsushima-Naka, Kita-Ku, Okayama 700-8530, Japan.
| | - Hidenori Masuzzaki
- Department of Life Science, Faculty of Life and Environmental Science, Prefectural University of Hiroshima, Shobara, Hiroshima 727-0023, Japan.
| | - Nagisa Sada
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama 701-0192, Japan.
- Department of Biophysical Chemistry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8530, Japan.
| | - Min Yu
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama 701-0192, Japan.
- Department of Occupational and Environmental Health Science, School of Public Health, Peking University, 38 Xueyuan Road, Beijing 100191, China.
- Department of Occupational Diseases, Zhejiang, Academy of Medical Sciences, 182 Tian Mu Shan Road, Zhejiang 310013, China.
| | - Kei Yoshitome
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama 701-0192, Japan.
| | - Yasumitsu Nishimura
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama 701-0192, Japan.
| | - Takemi Otsuki
- Department of Biofunctional Chemistry, Division of Bioscience, Okayama University Graduate School of Natural Science and Technology, 1-1-1 Tsushima-Naka, Kita-Ku, Okayama 700-8530, Japan.
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15
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The regulation of FOXO1 and its role in disease progression. Life Sci 2017; 193:124-131. [PMID: 29158051 DOI: 10.1016/j.lfs.2017.11.030] [Citation(s) in RCA: 218] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 10/14/2017] [Accepted: 11/16/2017] [Indexed: 12/27/2022]
Abstract
Cell proliferation, apoptosis, autophagy, oxidative stress and metabolic dysregulation are the basis of many diseases. Forkhead box transcription factor O1 (FOXO1) changes in response to cellular stimulation and maintains tissue homeostasis during the above-mentioned physiological and pathological processes. Substantial evidences indicate that FOXO1's function depends on the modulation of downstream targets such as apoptosis- and autophagy-associated genes, anti-oxidative stress enzymes, cell cycle arrest genes, and metabolic and immune regulators. In addition, oxidative stress, high glucose and other stimulations induce the regulation of FOXO1 activity via PI3k-Akt, JNK, CBP, Sirtuins, ubiquitin E3 ligases, etc., which mediate multiple signalling pathways. Subsequent post-transcriptional modifications, including phosphorylation, ubiquitination, acetylation, deacetylation, arginine methylation and O-GlcNAcylation, activate or inhibit FOXO1. The regulation of FOXO1 and its role might provide a significant avenue for the prevention and treatment of diseases. However, the subtle mechanisms of the post-transcriptional modifications and the effect of FOXO1 remain elusive and even conflicting in the development of many diseases. The determination of these questions potentially has implications for further research regarding FOXO1 signalling and the identification of targeted drugs.
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16
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Matsuzaki H, Kumagai-Takei N, Lee S, Maeda M, Sada N, Hatayama T, Yamamoto S, Ikeda M, Yoshitome K, Min Y, Nishimura Y, Otsuki T. Search for biomarkers of asbestos exposure and asbestos-induced cancers in investigations of the immunological effects of asbestos. Environ Health Prev Med 2017; 22:53. [PMID: 29165150 PMCID: PMC5664581 DOI: 10.1186/s12199-017-0661-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 05/29/2017] [Indexed: 11/25/2022] Open
Abstract
The immunological effects of asbestos exposure on various lymphocytes such as the regulatory T cell (Treg), responder CD4+ T helper cell (Tresp), CD8+ cytotoxic T lymphocytes (CTL), and natural killer (NK) cells were investigated. Results show that asbestos exposure impairs antitumor immunity through enhancement of regulatory T cell function and volume, reduction of CXCR3 chemokine receptor in responder CD4+ T helper cells, and impairment of the killing activities of CD8+ cytotoxic T lymphocytes (CTL) and NK cells. These findings were used to explore biological markers associated with asbestos exposure and asbestos-induced cancers and suggested the usefulness of serum/plasma IL-10 and TGF-β, surface CXCR3 expression in Tresp, the secreting potential of IFN-γ in Tresp, intracellular perforin level in CTL, and surface expression NKp46 in NK cells. Although other unexplored cytokines in serum/plasma and molecules in these immunological cells, including Th17, should be investigated by experimental procedures in addition to a comprehensive analysis of screening methods, biomarkers based on immunological alterations may be helpful in clinical situations to screen the high-risk population exposed to asbestos and susceptible to asbestos-related cancers such as mesothelioma.
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Affiliation(s)
- Hidenori Matsuzaki
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Japan
| | - Naoko Kumagai-Takei
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Japan
| | - Suni Lee
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Japan
| | - Megumi Maeda
- Department of Biofunctional Chemistry, Division of Bioscience, Okayama University Graduate School of Natural Science and Technology, 1-1-1 Tsushimanaka, Kita-Ku, Okayama, 700-8530, Japan
| | - Nagisa Sada
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Japan
| | - Tamayo Hatayama
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Japan
| | - Shoko Yamamoto
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Japan
| | - Miho Ikeda
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Japan
| | - Kei Yoshitome
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Japan
| | - Yu Min
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Japan.,Department of Occupational Diseases, Zhejiang Academy of Medical Sciences, 182 Tian Mu Shan Road, Zhejiang, 310013, People's Republic of China
| | - Yasumitsu Nishimura
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Japan
| | - Takemi Otsuki
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Japan.
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17
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Lee S, Matsuzaki H, Maeda M, Yamamoto S, Kumagai-Takei N, Hatayama T, Ikeda M, Yoshitome K, Nishimura Y, Otsuki T. Accelerated cell cycle progression of human regulatory T cell-like cell line caused by continuous exposure to asbestos fibers. Int J Oncol 2016; 50:66-74. [PMID: 27878235 PMCID: PMC5182008 DOI: 10.3892/ijo.2016.3776] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 11/18/2016] [Indexed: 12/12/2022] Open
Abstract
Asbestos exposure causes malignant tumors such as lung cancer and malignant mesothelioma. Based on our hypothesis in which continuous exposure to asbestos of immune cells cause reduction of antitumor immunity, the decrease of natural killer cell killing activity with reduction of NKp46 activating receptor expression, inhibition of cytotoxic T cell clonal expansion, reduced CXCR3 chemokine receptor expression and production of interferon-γ production in CD4+ T cells were reported using cell line models, freshly isolated peripheral blood immune cells from health donors as well as asbestos exposed patients such as pleural plaque and mesothelioma. In addition to these findings, regulatory T cells (Treg) showed enhanced function through cell-cell contact and increased secretion of typical soluble factors, interleukin (IL)-10 and transforming growth factor (TGF)-β, in a cell line model using the MT-2 human polyclonal T cells and its sublines exposed continuously to asbestos fibers. Since these sublines showed a remarkable reduction of FoxO1 transcription factor, which regulates various cell cycle regulators in asbestos-exposed sublines, the cell cycle progression in these sublines was examined and compared with that of the original MT-2 cells. Results showed that cyclin D1 expression was markedly enhanced, and various cyclin-dependent kinase-inhibitors were reduced with increased S phases in the sublines. Furthermore, the increase of cyclin D1 expression was regulated by FoxO1. The overall findings indicate that antitumor immunity in asbestos-exposed individuals may be reduced in Treg through changes in the function and volume of Treg.
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Affiliation(s)
- Suni Lee
- Department of Hygiene, Kawasaki Medical School, Kurashiki, Okayama 701-0192, Japan
| | - Hidenori Matsuzaki
- Department of Hygiene, Kawasaki Medical School, Kurashiki, Okayama 701-0192, Japan
| | - Megumi Maeda
- Department of Biofunctional Chemistry, Division of Bioscience, Okayama University Graduate School of Natural Science and Technology, Kita-Ku, Okayama 700-8530, Japan
| | - Shoko Yamamoto
- Department of Hygiene, Kawasaki Medical School, Kurashiki, Okayama 701-0192, Japan
| | - Naoko Kumagai-Takei
- Department of Hygiene, Kawasaki Medical School, Kurashiki, Okayama 701-0192, Japan
| | - Tamayo Hatayama
- Department of Hygiene, Kawasaki Medical School, Kurashiki, Okayama 701-0192, Japan
| | - Miho Ikeda
- Department of Hygiene, Kawasaki Medical School, Kurashiki, Okayama 701-0192, Japan
| | - Kei Yoshitome
- Department of Hygiene, Kawasaki Medical School, Kurashiki, Okayama 701-0192, Japan
| | - Yasumitsu Nishimura
- Department of Hygiene, Kawasaki Medical School, Kurashiki, Okayama 701-0192, Japan
| | - Takemi Otsuki
- Department of Hygiene, Kawasaki Medical School, Kurashiki, Okayama 701-0192, Japan
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