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Fei Q, Jin K, Shi S, Li T, Guo D, Lin M, Yu X, Wu W, Ye L. Suppression of pancreatic cancer proliferation through TXNIP-mediated inhibition of the MAPK signaling pathway. Acta Biochim Biophys Sin (Shanghai) 2024; 56:513-524. [PMID: 38229544 PMCID: PMC11094629 DOI: 10.3724/abbs.2023286] [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: 08/17/2023] [Accepted: 11/21/2023] [Indexed: 01/18/2024] Open
Abstract
Thioredoxin-interacting protein (TXNIP) is a crucial thioredoxin-binding protein that is recognized as a tumor suppressor in diverse malignancies, such as breast cancer, lung cancer, hepatocellular carcinoma, and thyroid cancer. However, the specific role and molecular mechanisms of TXNIP in the pathogenesis and progression of pancreatic cancer cells have not been determined. In this study, we investigate the relationship between TXNIP expression and overall survival prognosis in pancreatic cancer patients. Mechanistic studies are conducted to reveal the role of TXNIP in pancreatic cancer cell proliferation, migration, and regulation during malignancy. Our findings indicate that patients with high TXNIP expression have a more favorable prognosis. In vitro experiments with pancreatic cell lines show that overexpression of TXNIP suppresses the proliferation and migration of pancreatic cancer cells. Furthermore, we find that TXNIP inhibits the activation of the MAPK signaling pathway, thereby decreasing the malignant potential of pancreatic cancer. In conclusion, our study reveals TXNIP as a promising new predictive marker and therapeutic target for pancreatic cancer.
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Affiliation(s)
- Qinglin Fei
- Department of Pancreatic SurgeryFudan University Shanghai Cancer CenterShanghai200032China
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
- Shanghai Pancreatic Cancer InstituteShanghai200032China
- Pancreatic Cancer InstituteFudan UniversityShanghai200032China
| | - Kaizhou Jin
- Department of Pancreatic SurgeryFudan University Shanghai Cancer CenterShanghai200032China
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
- Shanghai Pancreatic Cancer InstituteShanghai200032China
- Pancreatic Cancer InstituteFudan UniversityShanghai200032China
| | - Saimeng Shi
- Department of Pancreatic SurgeryFudan University Shanghai Cancer CenterShanghai200032China
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
- Shanghai Pancreatic Cancer InstituteShanghai200032China
- Pancreatic Cancer InstituteFudan UniversityShanghai200032China
| | - Tianjiao Li
- Department of Pancreatic SurgeryFudan University Shanghai Cancer CenterShanghai200032China
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
- Shanghai Pancreatic Cancer InstituteShanghai200032China
- Pancreatic Cancer InstituteFudan UniversityShanghai200032China
| | - Duancheng Guo
- Department of Pancreatic SurgeryFudan University Shanghai Cancer CenterShanghai200032China
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
- Shanghai Pancreatic Cancer InstituteShanghai200032China
- Pancreatic Cancer InstituteFudan UniversityShanghai200032China
| | - Mengxiong Lin
- Department of Pancreatic SurgeryFudan University Shanghai Cancer CenterShanghai200032China
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
- Shanghai Pancreatic Cancer InstituteShanghai200032China
- Pancreatic Cancer InstituteFudan UniversityShanghai200032China
| | - Xianjun Yu
- Department of Pancreatic SurgeryFudan University Shanghai Cancer CenterShanghai200032China
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
- Shanghai Pancreatic Cancer InstituteShanghai200032China
- Pancreatic Cancer InstituteFudan UniversityShanghai200032China
| | - Weiding Wu
- Department of Pancreatic SurgeryFudan University Shanghai Cancer CenterShanghai200032China
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
- Shanghai Pancreatic Cancer InstituteShanghai200032China
- Pancreatic Cancer InstituteFudan UniversityShanghai200032China
| | - Longyun Ye
- Department of Pancreatic SurgeryFudan University Shanghai Cancer CenterShanghai200032China
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
- Shanghai Pancreatic Cancer InstituteShanghai200032China
- Pancreatic Cancer InstituteFudan UniversityShanghai200032China
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Jiang L, Lin X, Jiang J, Qiu C, Zheng S, Zhao N, Shu Z, Qian Y, Qiu L. METTL3-m6A-SIRT1 axis affects autophagic flux contributing to PM 2.5-induced inhibition of testosterone production in Leydig cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 918:170701. [PMID: 38325452 DOI: 10.1016/j.scitotenv.2024.170701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/31/2024] [Accepted: 02/03/2024] [Indexed: 02/09/2024]
Abstract
Epidemiological studies have found that long-term inhalation of PM2.5 is closely related to spermatogenesis disorders and infertility, but the underlying molecular mechanism is still unidentified. Testosterone, an essential reproductive hormone produced by Leydig cells, whose synthesis is disrupted by multiple environmental pollutants. In the current study, we explored the role of METTL3-m6A-SIRT1 axis-mediated abnormal autophagy in PM2.5-induced inhibition of testosterone production in in vivo and in vitro models. Our in vivo findings shown that long-term inhalation of PM2.5 decreased sperm count, increased sperm deformity rates, and altered testicular interstitial morphology accompanied by reduced testosterone in serum and testes. Further, data from the in vitro model displayed that exposure to PM2.5 caused an increase in m6A modification and METTL3 levels, followed by a decrease in testosterone levels and autophagy dysfunction in Leydig cells. The knockdown of METTL3 promotes autophagy flux and testosterone production in Leydig cells. Mechanistically, PM2.5 increased METTL3-induced m6A modification of SIRT1 mRNA in Leydig cells, bringing about abnormal autophagy. Subsequently, administration of SRT1720 (a SIRT1 activator) enhanced autophagy and further promoted testosterone biosynthesis. Collectively, our discoveries indicate that METTL3-m6A-SIRT1 axis-mediated autophagic flux contributes to PM2.5-induced inhibition of testosterone biosynthesis. This research offers a novel viewpoint on the mechanism of male reproductive injury following PM2.5 exposure.
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Affiliation(s)
- Lianlian Jiang
- School of Public Health, Nantong University, 9 Seyuan Rd., Nantong 226019, PR China
| | - Xiaojun Lin
- School of Public Health, Nantong University, 9 Seyuan Rd., Nantong 226019, PR China
| | - Jinchen Jiang
- School of Public Health, Nantong University, 9 Seyuan Rd., Nantong 226019, PR China
| | - Chong Qiu
- Medical School, Nantong University, 19 Qixiu Rd., Nantong 226001, PR China
| | - Shaokai Zheng
- School of Public Health, Nantong University, 9 Seyuan Rd., Nantong 226019, PR China
| | - Nannan Zhao
- School of Public Health, Nantong University, 9 Seyuan Rd., Nantong 226019, PR China
| | - Zhenhao Shu
- School of Public Health, Nantong University, 9 Seyuan Rd., Nantong 226019, PR China
| | - Yinyun Qian
- Graduate School, Nantong University, 9 Seyuan Rd., Nantong 226019, PR China
| | - Lianglin Qiu
- School of Public Health, Nantong University, 9 Seyuan Rd., Nantong 226019, PR China.
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Ahn Y, Yim YH, Yoo HM. Particulate Matter Induces Oxidative Stress and Ferroptosis in Human Lung Epithelial Cells. TOXICS 2024; 12:161. [PMID: 38393256 PMCID: PMC10893167 DOI: 10.3390/toxics12020161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 02/11/2024] [Accepted: 02/18/2024] [Indexed: 02/25/2024]
Abstract
Numerous toxicological studies have highlighted the association between urban particulate matter (PM) and increased respiratory infections and lung diseases. The adverse impact on the lungs is directly linked to the complex composition of particulate matter, initiating reactive oxygen species (ROS) production and consequent lipid peroxidation. Excessive ROS, particularly within mitochondria, can destroy subcellular organelles through various pathways. In this study, we confirmed the induction of ferroptosis, an iron-dependent cell death, upon exposure to an urban PM using RT-qPCR and signaling pathway analysis. We used KRISS CRM 109-02-004, the certified reference material for the analysis of particulate matter, produced by the Korea Research Institute of Standards and Science (KRISS). To validate that ferroptosis causes lung endothelial toxicity, we assessed intracellular mitochondrial potential, ROS overproduction, lipid peroxidation, and specific ferroptosis biomarkers. Following exposure to the urban PM, a significant increase in ROS generation and a decrease in mitochondrial potential were observed. Furthermore, it induced hallmarks of ferroptosis, including the accumulation of lipid peroxidation, the loss of antioxidant defenses, and cellular iron accumulation. In addition, the occurrence of oxidative stress as a key feature of ferroptosis was confirmed by increased expression levels of specific oxidative stress markers such as NQO1, CYP1B1, FTH1, SOD2, and NRF. Finally, a significant increase in key ferroptosis markers was observed, including xCT/SLC7A11, NQO1, TRIM16, HMOX-1, FTL, FTH1, CYP1B1, CHAC1, and GPX4. This provides evidence that elevated ROS levels induce oxidative stress, which ultimately triggers ferroptosis. In conclusion, our results show that the urban PM, KRISS CRM, induces cellular and mitochondrial ROS production, leading to oxidative stress and subsequent ferroptosis. These results suggest that it may induce ferroptosis through ROS generation and may offer potential strategies for the treatment of lung diseases.
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Affiliation(s)
- Yujin Ahn
- Biometrology Group, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea
- Department of Precision Measurement, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Yong-Hyeon Yim
- Department of Precision Measurement, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
- Inorganic Metrology Group, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea
| | - Hee Min Yoo
- Biometrology Group, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea
- Department of Precision Measurement, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
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Hsieh CC, Yu SH, Kuo HC, Cheng KW, Hsu CC, Lin YP, Khumsupan D, Lin SP, Angkawijaya AE, Cheng KC. Alleviation of PM2.5-induced alveolar macrophage inflammation using extract of fermented Chenopodium formosanum Koidz sprouts via regulation of NF-κB pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 318:116980. [PMID: 37536644 DOI: 10.1016/j.jep.2023.116980] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 07/24/2023] [Accepted: 07/29/2023] [Indexed: 08/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Particulate matter 2.5 (PM2.5) is a dangerous airborne pollutant that has become a global issue due to its detrimental effect on macrophages. Chenopodium formosanum Koidz (Djulis), a native plant from Taiwan well known for its high antioxidant content and is frequently used in ethnomedicine, shows promise as a novel phytomedicine to combat against oxidative stress caused by PM2.5. However, the protective mechanism of Djulis against PM2.5 still remains unclear. AIM OF THE STUDY This study aimed to characterize the deleterious effect of emerging PM2.5 contaminants on the alveolar macrophage cell of the respiratory system and explore the underlying mechanisms in the suppression of PM2.5-induced inflammation using the extract of fermented Djulis. METHODS AND MATERIALS RNA sequencing, immunoblot, and ChIP assay approaches were used to gain insight into the deleterious effect of PM2.5 on the macrophage cell at the transcriptional and translational level; and to elucidate the contribution of fermented Djulis extract (FCS) as the remedy of PM-induced MH-S cell inflammation. UHPLC-ESI-MS/MS and LC-QQQ/MS were used to identify the bioactive compounds potentially contributing to phytomedicinal properties in the water fraction of FCS. Multiple ligands docking analysis was conducted to predict the in-silico interaction of Djulis metabolites and NF-κB. RESULTS Here, we showed that PM2.5 exposure at 200 ppm accelerated the production of intracellular ROS and phosphorylated NF-κB (p-NFκB), and negatively affecting the alveolar macrophage cell viability. Treating the cells with water-extracted FCS can restore their viability to 76% while simultaneously suppressing the generation of ROS and p-NFκB up to 38%. These ameliorative effects can be attributed to the occurrence of bioactive compounds such as gluconic acid, uridine, pantothenic acid, L-pyroglutamic acid, L-(-)-malic acid, and acetyl-L-carnitine in the water-extracted FCS which potentially dock to the RELA subunit site and consequently inhibit NF-κB activity along with its downstream inflammation signaling cascade. CONCLUSION This work demonstrated the hazardous effect of PM2.5 on alveolar macrophage and unveiled the potential of FCS as a therapeutic phytomedicine to alleviate PM-induced inflammation.
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Affiliation(s)
- Chen-Che Hsieh
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan, ROC
| | - Shu-Han Yu
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan, ROC
| | - Hsing-Chun Kuo
- Division of Basic Medical Sciences, Department of Nursing, Chang Gung University of Science and Technology, Chiayi, Taiwan, ROC
| | - Kai-Wen Cheng
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan, ROC
| | - Cheng-Chih Hsu
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan, ROC
| | - Yi-Pin Lin
- Institute of Environmental Engineering, National Taiwan University, Taipei, Taiwan, ROC
| | - Darin Khumsupan
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan, ROC
| | - Shin-Ping Lin
- School of Food Safety, Taipei Medical University, 250 Wu-Hsing Street, Taipei, Taiwan, ROC
| | | | - Kuan-Chen Cheng
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan, ROC; Institute of Food Science Technology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan, ROC; Department of Optometry, Asia University, 500, Lioufeng Rd., Wufeng, Taichung, Taiwan, ROC; Department of Medical Research, China Medical University Hospital, China Medical University, 91, Hsueh-Shih Road, Taichung, Taiwan, ROC.
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Ryu J, Lee SH, Kim S, Jeong JW, Kim KS, Nam S, Kim JE. Urban dust particles disrupt mitotic progression by dysregulating Aurora kinase B-related functions. JOURNAL OF HAZARDOUS MATERIALS 2023; 459:132238. [PMID: 37586242 DOI: 10.1016/j.jhazmat.2023.132238] [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: 05/16/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/18/2023]
Abstract
Particulate matter (PM), a major component of outdoor air pollution, damages DNA and increases the risk of cancer. Although the harmful effects of PM at the genomic level are known, the detailed mechanism by which PM affects chromosomal stability remains unclear. In this study, we investigated the novel effects of PM on mitotic progression and identified the underlying mechanisms. Gene set enrichment analysis of lung cancer patients residing in countries with high PM concentrations revealed the downregulation of genes associated with mitosis and mitotic structures. We also showed that exposure of lung cancer cells in vitro to urban dust particles (UDPs) inhibits cell proliferation through a prolonged M phase. The mitotic spindles in UDP-treated cells were hyperstabilized, and the number of centrioles increased. The rate of ingression of the cleavage furrow and actin clearance from the polar cortex was reduced significantly. The defects in mitotic progression were attributed to inactivation of Aurora B at kinetochore during early mitosis, and spindle midzone and midbody during late mitosis. While previous studies demonstrated possible links between PM and mitosis, they did not specifically identify the dysregulation of spatiotemporal dynamics of mitotic proteins and structures (e.g., microtubules, centrosomes, cleavage furrow, and equatorial and polar cortex), which results in the accumulation of chromosomal instability, ultimately contributing to carcinogenicity. The data highlight the novel scientific problem of PM-induced mitotic disruption. Additionally, we introduce a practical visual method for assessing the genotoxic outcomes of airborne pollutants, which has implications for future environmental and public health research.
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Affiliation(s)
- Jaewook Ryu
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, the Republic of Korea; Department of Pharmacology, College of Medicine, Kyung Hee University, Seoul 02447, the Republic of Korea
| | - Seung Hyeun Lee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, College of Medicine, Kyung Hee University, Seoul 02447, the Republic of Korea
| | - Sungyeon Kim
- Department of Genome Medicine and Science, AI Convergence Center for Medical Science, Gachon Institute of Genome Medicine and Science, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon 21565, the Republic of Korea
| | - Joo-Won Jeong
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, the Republic of Korea; Department of Anatomy and Neurobiology, College of Medicine, Kyung Hee University, Seoul 02447, the Republic of Korea
| | - Kyung Sook Kim
- Department of Biomedical Engineering, College of Medicine, Kyung Hee University, Seoul 02447, the Republic of Korea
| | - Seungyoon Nam
- Department of Genome Medicine and Science, AI Convergence Center for Medical Science, Gachon Institute of Genome Medicine and Science, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon 21565, the Republic of Korea; Department of Health Sciences and Technology, Gachon Advanced Institute for Health Sciences and Technology (GAIHST), Gachon University, Incheon 21999, the Republic of Korea
| | - Ja-Eun Kim
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, the Republic of Korea; Department of Pharmacology, College of Medicine, Kyung Hee University, Seoul 02447, the Republic of Korea; Department of Precision Medicine, Graduate School, Kyung Hee University, Seoul 02447, the Republic of Korea.
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Yalamanchili J, Hennigan CJ, Reed BE. Measurement artifacts in the dithiothreitol (DTT) oxidative potential assay caused by interactions between aqueous metals and phosphate buffer. JOURNAL OF HAZARDOUS MATERIALS 2023; 456:131693. [PMID: 37245366 DOI: 10.1016/j.jhazmat.2023.131693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/15/2023] [Accepted: 05/22/2023] [Indexed: 05/30/2023]
Abstract
Metals in particulate matter (PM) are hypothesized to have enhanced toxicity based on their ability to catalyze reactive oxygen species (ROS) formation. Acellular assays are used to measure the oxidative potential (OP) of PM and its individual components. Many OP assays, including the dithiothreitol (DTT) assay, use a phosphate buffer matrix to simulate biological conditions (pH 7.4 and 37 °C). Prior work from our group observed transition metal precipitation in the DTT assay, consistent with thermodynamic equilibria. In this study, we characterized the effects of metal precipitation on OP measured by the DTT assay. Metal precipitation was affected by aqueous metal concentrations, ionic strength, and phosphate concentrations in ambient PM sampled in Baltimore, MD and a standard PM sample (NIST SRM-1648a, Urban Particulate Matter). Critically, differences in metal precipitation induced differing OP responses of the DTT assay as a function of phosphate concentration in all PM samples analyzed. These results indicate that comparison of DTT assay results obtained at differing phosphate buffer concentrations is highly problematic. Further, these results have implications for other chemical and biological assays that use phosphate buffer for pH control and their use to infer PM toxicity.
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Affiliation(s)
- Jayashree Yalamanchili
- Department of Chemical, Biochemical and Environmental Engineering, University of Maryland, Baltimore County, Baltimore, MD 21250, USA
| | - Christopher J Hennigan
- Department of Chemical, Biochemical and Environmental Engineering, University of Maryland, Baltimore County, Baltimore, MD 21250, USA.
| | - Brian E Reed
- Department of Chemical, Biochemical and Environmental Engineering, University of Maryland, Baltimore County, Baltimore, MD 21250, USA
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