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Fan M, Xu X, Hu Y. Characterization of tumor endothelial cells (TEC) in gastric cancer and development of a TEC-based risk signature using single-cell RNA-seq and bulk RNA-seq data. Aging (Albany NY) 2024; 16:205928. [PMID: 38870270 DOI: 10.18632/aging.205928] [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: 12/07/2023] [Accepted: 04/22/2024] [Indexed: 06/15/2024]
Abstract
BACKGROUND Tumor endothelial cells (TECs) are essential participants in tumorigenesis. This study is focused on elucidating the TEC traits in gastric cancer (GC) and constructing a prognostic risk model to predict the clinical outcome of GC patients. METHODS Single-cell RNA sequencing (scRNA-seq) data were obtained from the GEO database. Using specific markers, the Seurat R package aided in processing scRNA-seq data and identifying TEC clusters. Based on TEC cluster-associated genes identified by Pearson correlation analysis, TEC-related prognostic genes were screened by lasso-Cox regression analysis, thereby constructing a risk signature. A nomogram was created by combining the risk signature with clinicopathological features. RESULTS Based on the scRNA-seq data, 5 TEC clusters were discovered in GC, with 3 of them showing prognostic associations in GC. A total of 163 genes were pinpointed among 3302 DEGs as significantly linked to TEC clusters, leading to the formulation of a risk signature comprising 8 genes. Furthermore, there was a notable correlation between the risk signature and the immune cell infiltration. Multivariate analysis findings indicated that the risk signature served as an independent prognostic factor for GC. Moreover, its efficacy in forecasting immune response was validated. CONCLUSION TEC-based risk model is highly effective in predicting the survival outcomes of GC patients and can forecast the immune response. Targeting TECs may significantly inhibit tumor progression and enhance the efficacy of immunotherapy.
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Affiliation(s)
- Meng Fan
- Department of Gastrointestinal Surgery, Zhu Cheng People’s Hospital, Weifang, China
| | - Xiaofei Xu
- Department of Gastrointestinal Surgery, Zhu Cheng People’s Hospital, Weifang, China
| | - Yu Hu
- Department of Gastrointestinal Surgery, Zhu Cheng People’s Hospital, Weifang, China
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2
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Liu H, Zhang W, Jin L, Liu S, Liang L, Wei Y. Plumbagin Exhibits Genotoxicity and Induces G2/M Cell Cycle Arrest via ROS-Mediated Oxidative Stress and Activation of ATM-p53 Signaling Pathway in Hepatocellular Cells. Int J Mol Sci 2023; 24:ijms24076279. [PMID: 37047251 PMCID: PMC10094147 DOI: 10.3390/ijms24076279] [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: 02/10/2023] [Revised: 03/22/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023] Open
Abstract
Plumbagin (5-hydroxy-2-methyl-1,4-naphthoquinone, PLB), a naturally occurring naphthoquinone mainly isolated from the plant Plumbago zeylanica L., has been proven to possess anticancer activities towards multiple types of cancer. Although there has been an increasing amount of research regarding its anticancer effects, the association between oxidative stress, genotoxicity and the cell cycle arrest induced by PLB still remains unclear. Therefore, it is important to investigate their potential connections and the involvement of DNA damage and the ataxia telangiectasia mutated protein (ATM)-p53 signaling pathway in PLB’s anticancer mechanism. The present study showed that PLB exposure significantly reduced HCC cell viability and colony formation. In addition, PLB-induced G2/M cell cycle arrest, oxidative stress, and DNA damage was detected, which could be almost blocked by NAC pretreatment. PLB could trigger a DNA damage response by activating cell cycle checkpoints such as ATM, checkpoint kinase 1 (Chk1), checkpoint kinase 2 (Chk2) and p53. Meanwhile, the key modulator of the G2/M transition factor, Cell Division Cycle 25C (cdc25C), was significantly downregulated in an ROS-dependent manner. Furthermore, pretreatment with ATM and p53 inhibitors (KU55933 and Pifithrin-α) could reduce the occurrence of G2/M cell cycle arrest by inhibiting the activation of the ATM-p53 pathway. Taken together, these results indicate that ROS-mediated oxidative stress plays a key role in PLB-induced G2/M cell cycle arrest mediated by the ATM-p53 pathway.
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Affiliation(s)
- Huan Liu
- Laboratory of Medical Molecular Biology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530024, China; (H.L.)
- Guangxi Key Laboratory of Molecular Biology of Preventive Medicine of Traditional Chinese Medicine, Nanning 530024, China
| | - Wenchao Zhang
- Research Center for Non-Food Biorefinery, Guangxi Academy of Science, Nanning 530001, China
| | - Lijie Jin
- Guangxi Key Laboratory of Molecular Biology of Preventive Medicine of Traditional Chinese Medicine, Nanning 530024, China
- Department of Physiology, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Shasha Liu
- Guangxi Key Laboratory of Molecular Biology of Preventive Medicine of Traditional Chinese Medicine, Nanning 530024, China
- Department of Physiology, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Liying Liang
- Laboratory of Medical Molecular Biology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530024, China; (H.L.)
- Guangxi Key Laboratory of Molecular Biology of Preventive Medicine of Traditional Chinese Medicine, Nanning 530024, China
| | - Yanfei Wei
- Guangxi Key Laboratory of Molecular Biology of Preventive Medicine of Traditional Chinese Medicine, Nanning 530024, China
- Department of Physiology, Guangxi University of Chinese Medicine, Nanning 530200, China
- Correspondence:
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3
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Ren Y, Qin Z, Wang Z, Wei S, Chen H, Zhu T, Liu L, Zhao Y, Ding B, Song W. Condensed tannins from
Ulmus pumila
L. leaves induce
G2
/M phase arrest and apoptosis via caspase‐cascade activation in
TFK
‐1 cholangiocarcinoma cells. J Food Biochem 2022; 46:e14374. [DOI: 10.1111/jfbc.14374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 06/06/2022] [Accepted: 06/23/2022] [Indexed: 12/01/2022]
Affiliation(s)
- Yuanjing Ren
- College of Life Science Yangtze University Jingzhou China
- College of Life Science and Engineering Henan University of Urban Construction Pingdingshan China
| | - Zeya Qin
- College of Life Science Yangtze University Jingzhou China
| | - Zhanchang Wang
- Forestry and Fruit Tree Research Institute Wuhan Academy of Agricultural Sciences Wuhan China
| | - Shudong Wei
- College of Life Science Yangtze University Jingzhou China
| | - Hui Chen
- College of Life Science Yangtze University Jingzhou China
| | - Tao Zhu
- College of Life Science and Engineering Henan University of Urban Construction Pingdingshan China
| | - Lulu Liu
- College of Life Science Yangtze University Jingzhou China
| | - Yaying Zhao
- College of Life Science Yangtze University Jingzhou China
| | - Baomiao Ding
- College of Life Science Yangtze University Jingzhou China
| | - Wei Song
- College of Life Science and Engineering Henan University of Urban Construction Pingdingshan China
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4
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de Klerk DJ, de Keijzer MJ, Dias LM, Heemskerk J, de Haan LR, Kleijn TG, Franchi LP, Heger M. Strategies for Improving Photodynamic Therapy Through Pharmacological Modulation of the Immediate Early Stress Response. Methods Mol Biol 2022; 2451:405-480. [PMID: 35505025 DOI: 10.1007/978-1-0716-2099-1_20] [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] [Indexed: 06/14/2023]
Abstract
Photodynamic therapy (PDT) is a minimally to noninvasive treatment modality that has emerged as a promising alternative to conventional cancer treatments. PDT induces hyperoxidative stress and disrupts cellular homeostasis in photosensitized cancer cells, resulting in cell death and ultimately removal of the tumor. However, various survival pathways can be activated in sublethally afflicted cancer cells following PDT. The acute stress response is one of the known survival pathways in PDT, which is activated by reactive oxygen species and signals via ASK-1 (directly) or via TNFR (indirectly). The acute stress response can activate various other survival pathways that may entail antioxidant, pro-inflammatory, angiogenic, and proteotoxic stress responses that culminate in the cancer cell's ability to cope with redox stress and oxidative damage. This review provides an overview of the immediate early stress response in the context of PDT, mechanisms of activation by PDT, and molecular intervention strategies aimed at inhibiting survival signaling and improving PDT outcome.
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Affiliation(s)
- Daniel J de Klerk
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
- Laboratory of Experimental Oncology, Department of Pathology, Erasmus MC, Rotterdam, The Netherlands
| | - Mark J de Keijzer
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Lionel M Dias
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
- Faculdade de Ciências da Saúde (FCS-UBI), Universidade da Beira Interior, Covilhã, Portugal
| | - Jordi Heemskerk
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
| | - Lianne R de Haan
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
- Laboratory of Experimental Oncology, Department of Pathology, Erasmus MC, Rotterdam, The Netherlands
| | - Tony G Kleijn
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
- Laboratory of Experimental Oncology, Department of Pathology, Erasmus MC, Rotterdam, The Netherlands
| | - Leonardo P Franchi
- Departamento de Bioquímica e Biologia Molecular, Instituto de Ciências Biológicas (ICB) 2, Universidade Federal de Goiás (UFG), Goiânia, GO, Brazil
- Faculty of Philosophy, Department of Chemistry, Center of Nanotechnology and Tissue Engineering-Photobiology and Photomedicine Research Group, Sciences, and Letters of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | - Michal Heger
- Jiaxing Key Laboratory for Photonanomedicine and Experimental Therapeutics, Department of Pharmaceutics, College of Medicine, Jiaxing University, Jiaxing, Zhejiang, People's Republic of China.
- Laboratory of Experimental Oncology, Department of Pathology, Erasmus MC, Rotterdam, The Netherlands.
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.
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Emerging Roles of 5-Lipoxygenase Phosphorylation in Inflammation and Cell Death. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:2749173. [PMID: 31871543 PMCID: PMC6906800 DOI: 10.1155/2019/2749173] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/30/2019] [Accepted: 11/11/2019] [Indexed: 12/12/2022]
Abstract
5-Lipoxygenase (ALOX5) is an iron-containing and nonheme dioxygenase that catalyzes the peroxidation of polyunsaturated fatty acids such as arachidonic acid. ALOX5 is the rate-limiting enzyme for the biosynthesis of leukotrienes, a family of proinflammatory lipid mediators derived from arachidonic acid. ALOX5 also make great contributions to mediating lipid peroxidation. In recent years, it has been discovered that ALOX5 plays a central role in cell death including apoptosis, pyroptosis, and ferroptosis, a newly discovered type of cell death. According to the previous studies, ALOX5 can regulate cell death in two ways: one is inflammation and the other is lipid peroxidation. Meanwhile, it has been shown that ALOX5 activity is regulated by several factors including protein phosphorylation, ALOX5-interactng protein, redox state, and metal ions such as iron and calcium. In this review, we aim to summarize the knowledge on the emerging roles of ALOX5 protein phosphorylation in the regulation of cell death and inflammation in order to explore a potential target for human diseases.
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Ma Y, Guan L, Han Y, Zhou Y, Li X, Liu Y, Zhang X, Zhang W, Li X, Wang S, Lu W. siPRDX2-elevated DNM3 inhibits the proliferation and metastasis of colon cancer cells via AKT signaling pathway. Cancer Manag Res 2019; 11:5799-5811. [PMID: 31388312 PMCID: PMC6607199 DOI: 10.2147/cmar.s193805] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 05/09/2019] [Indexed: 12/15/2022] Open
Abstract
Purpose: We have previously reported that PRDX2 plays an oncogenic role in colon cancer. In this study, the mRNA expression profile of PRDX2 in HCT116 cells was investigated. Furthermore, we selected Dynamin 3 (DNM3), which is up-regulated by siPRDX2, to investigate its expression pattern and functions in colon cancer. Patients and methods: PRDX2 siRNA was transfected into HCT116 cells and the mRNA profile was tested by RNA-Sequencing. The expression of interest proteins was determined by Western blot. DNM3 expression in colon cancer tissues and para-carcinoma tissues was evaluated by Western blot and immunohistochemistry assays. Full-length cDNA of DNM3 was cloned into pcDNA3.1 and introduced into HCT116 and HT29 cells. Cell proliferation was tested by CCK-8 and colony formation assays. Cell invasion and migration were tested by transwell assays. Gelatin zymography was utilized for detection of MMP9 activity. Cell apoptosis was investigated with Annexin V/PI staining and flow cytometry and visualized with Hoechst/PI staining assay. All statistical analysis was performed with SPSS 17.0 software. Results: PRDX2 knockdown led to 210 up-regulated genes and 16 down-regulated genes in HCT116 cells. We also found that DNM3 expression was up-regulated following PRDX2 silencing in HCT116 and HT29 cells. In colon cancer patients, DNM3 was down-regulated and showed a significant association with pathologic grading. DNM3 overexpression inhibited cell proliferation and induced apoptosis in HCT116 and HT29 cells. Cell migration and invasion were also down-regulated in DNM3 overexpressing colon cancer cells, which might be due to the inhibition of MMP9 proteolytic activities. After thorough investigation of the potential mechanism involved, we hypothesized that DNM3 overexpression induced activation of the mitochondrial apoptosis pathway and inhibition of the AKT pathway. Conclusion: These data suggest that DNM3 is down-regulated in colon cancer, serving as a tumor suppressor. Our study provides new sights into the prognostic value and therapeutic application of DNM3 in colon cancer.
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Affiliation(s)
- Yini Ma
- Health Management Center, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, People's Republic of China.,Department of Nephrology, The Affiliated Hospital of Shandong Academy of Medical Sciences, Jinan 250031, People's Republic of China
| | - Liying Guan
- Health Management Center, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, People's Republic of China
| | - Yanxin Han
- Health Management Center, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, People's Republic of China
| | - Yi Zhou
- Health Management Center, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, People's Republic of China
| | - Xiaoming Li
- Health Management Center, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, People's Republic of China
| | - Yumei Liu
- Health Management Center, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, People's Republic of China
| | - Xiujuan Zhang
- Health Management Center, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, People's Republic of China
| | - Weiying Zhang
- Health Management Center, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, People's Republic of China
| | - Xiaohong Li
- Health Management Center, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, People's Republic of China
| | - Shuhua Wang
- Health Management Center, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, People's Republic of China
| | - Weidong Lu
- Health Management Center, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, People's Republic of China
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