1
|
Pan S, Li Y, Zhang J. 6-Shogaol prevents benzo (A) pyrene-exposed lung carcinogenesis via modulating PRDX1-associated oxidative stress, inflammation, and proliferation in mouse models. ENVIRONMENTAL TOXICOLOGY 2024; 39:75-84. [PMID: 37638803 DOI: 10.1002/tox.23946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/03/2023] [Accepted: 08/13/2023] [Indexed: 08/29/2023]
Abstract
In this study, we have investigated the chemopreventive role of 6-shogaol (6-SGL) on benzopyrene (BaP) exposed lung carcinogenesis by modulating PRDX1-associated oxidative stress, inflammation, and proliferation in Swiss albino mouse models. Mice were exposed to BaP (50 mg/kg b.wt) orally twice a week for four consecutive weeks and maintained for 16 weeks, respectively. 6-SGL (30 mg/kg b.wt) were orally administered to mouse 1 h before BaP exposure for 16 weeks. After the experiment's termination, 6-SGL (30 mg/kg b.wt) prevented the loss in body weight, increased lung weight, and the total number of tumors in the mice. Moreover, we observed that 6-SGL treatment reverted the activity of BaP-induced lipid peroxidation and antioxidants in mice. Also, 6-SGL impeded the phosphorylation of MAPK family proteins such as Erk1, p38, and Jnk1 in BaP-exposed mice. PRDX1 is an essential antioxidant protein that scavenges toxic radicals and enhances several antioxidant proteins. Overexpression of PRDX1 substantially inhibits MAPKs, proliferation, and inflammation signaling axis. Hence, PRDX1 is thought to be a novel targeting protein for preventing BaP-induced lung cancer. In this study, we have obtained the 6-SGL treatment in a mouse model that reverted BaP-induced depletion of PRDX1 expression. Moreover, pretreatment of 6-SGL (30 mg/kg b.wt) significantly inhibited enhanced proinflammatory cytokines (TNF-α, IL-6, IL-β1, IL-10) and proliferative markers (Cyclin-D1, Cyclin-D2, and PCNA) in BaP-exposed mice. The histopathological studies also confirmed that 6-SGL effectively protected the cells with less damage. Thus, the study demonstrated that 6-SGL could be a potential phytochemical and act as a chemopreventive agent in BaP-induced lung cancer by enhancing PRDX1 expression.
Collapse
Affiliation(s)
- Shuang Pan
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - Yaming Li
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - Jinzhao Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| |
Collapse
|
2
|
Guan X, Ruan Y, Che X, Feng W. Dual role of PRDX1 in redox-regulation and tumorigenesis: Past and future. Free Radic Biol Med 2024; 210:120-129. [PMID: 37977211 DOI: 10.1016/j.freeradbiomed.2023.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 11/07/2023] [Accepted: 11/12/2023] [Indexed: 11/19/2023]
Abstract
Tumour cells often display an active metabolic profile, leading to the intracellular accumulation of reactive oxygen species. As a member of the peroxidase family, peroxiredoxin 1 (PRDX1) functions generally in protecting against cell damage caused by H2O2. Additionally, PRDX1 plays a role as a molecular chaperone in various malignant tumours, exhibiting either tumour-promoting or tumour-suppressing effects. Currently, PRDX1-targeting drugs have demonstrated in vitro anticancer effects, indicating the potential of PRDX1 as a molecular target. Here we discussed the diverse functions of PRDX1 in tumour biology and provided a comprehensive analysis of the therapeutic potential of targeting PRDX1 signalling across various types of cancer.
Collapse
Affiliation(s)
- Xin Guan
- Department of Obstetrics & Gynecology, Ruijin Hospital Affiliated to School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yiyin Ruan
- Department of Obstetrics & Gynecology, Ruijin Hospital Affiliated to School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoxia Che
- Department of Obstetrics & Gynecology, Ruijin Hospital Affiliated to School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Weiwei Feng
- Department of Obstetrics & Gynecology, Ruijin Hospital Affiliated to School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| |
Collapse
|
3
|
Sun HN, Ren CX, Lee DH, Wang WH, Guo XY, Hao YY, Wang XM, Zhang HN, Xiao WQ, Li N, Cong J, Han YH, Kwon T. PRDX1 negatively regulates bleomycin-induced pulmonary fibrosis via inhibiting the epithelial-mesenchymal transition and lung fibroblast proliferation in vitro and in vivo. Cell Mol Biol Lett 2023; 28:48. [PMID: 37268886 DOI: 10.1186/s11658-023-00460-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 05/12/2023] [Indexed: 06/04/2023] Open
Abstract
BACKGROUND Pulmonary fibrosis is a major category of end-stage changes in lung diseases, characterized by lung epithelial cell damage, proliferation of fibroblasts, and accumulation of extracellular matrix. Peroxiredoxin 1 (PRDX1), a member of the peroxiredoxin protein family, participates in the regulation of the levels of reactive oxygen species in cells and various other physiological activities, as well as the occurrence and development of diseases by functioning as a chaperonin. METHODS Experimental methods including MTT assay, morphological observation of fibrosis, wound healing assay, fluorescence microscopy, flow cytometry, ELISA, western blot, transcriptome sequencing, and histopathological analysis were used in this study. RESULTS PRDX1 knockdown increased ROS levels in lung epithelial cells and promoted epithelial-mesenchymal transition (EMT) through the PI3K/Akt and JNK/Smad signalling pathways. PRDX1 knockout significantly increased TGF-β secretion, ROS production, and cell migration in primary lung fibroblasts. PRDX1 deficiency also increased cell proliferation, cell cycle circulation, and fibrosis progression through the PI3K/Akt and JNK/Smad signalling pathways. BLM treatment induced more severe pulmonary fibrosis in PRDX1-knockout mice, mainly through the PI3K/Akt and JNK/Smad signalling pathways. CONCLUSIONS Our findings strongly suggest that PRDX1 is a key molecule in BLM-induced lung fibrosis progression and acts through modulating EMT and lung fibroblast proliferation; therefore, it may be a therapeutic target for the treatment of BLM-induced lung fibrosis.
Collapse
Affiliation(s)
- Hu-Nan Sun
- Stem Cell and Regenerative Biology Laboratory, College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Xingyang Road #2, Daqing, 163319, Heilongjiang, China.
| | - Chen-Xi Ren
- Stem Cell and Regenerative Biology Laboratory, College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Xingyang Road #2, Daqing, 163319, Heilongjiang, China
| | - Dong Hun Lee
- Department of Biological Sciences, Research Center of Ecomimetics, Chonnam National University, 77 Yongbong-Ro, Buk-Gu, Gwangju, 61186, Republic of Korea
| | - Wei-Hao Wang
- National Coarse Cereals Engineering Research Center, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Xiao-Yu Guo
- Stem Cell and Regenerative Biology Laboratory, College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Xingyang Road #2, Daqing, 163319, Heilongjiang, China
| | - Ying-Ying Hao
- Stem Cell and Regenerative Biology Laboratory, College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Xingyang Road #2, Daqing, 163319, Heilongjiang, China
| | - Xiao-Ming Wang
- Yabian Academy of Agricultural Science, Longjing, Jilin, 1334000, China
| | - Hui-Na Zhang
- Stem Cell and Regenerative Biology Laboratory, College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Xingyang Road #2, Daqing, 163319, Heilongjiang, China
| | - Wan-Qiu Xiao
- Stem Cell and Regenerative Biology Laboratory, College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Xingyang Road #2, Daqing, 163319, Heilongjiang, China
| | - Nan Li
- Stem Cell and Regenerative Biology Laboratory, College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Xingyang Road #2, Daqing, 163319, Heilongjiang, China
| | - Jie Cong
- Stem Cell and Regenerative Biology Laboratory, College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Xingyang Road #2, Daqing, 163319, Heilongjiang, China
| | - Ying-Hao Han
- Stem Cell and Regenerative Biology Laboratory, College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Xingyang Road #2, Daqing, 163319, Heilongjiang, China.
| | - Taeho Kwon
- Primate Resources Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 351-33 Neongme-Gil, Ibam-Myeon, Jeongeup-Si, Jeonbuk, 56216, Republic of Korea.
- Department of Functional Genomics, KRIBB School of Bioscience, University of Science and Technology, Daejeon, 34113, Republic of Korea.
| |
Collapse
|
4
|
Liu Y, Wang P, Hu W, Chen D. New insights into the roles of peroxiredoxins in cancer. Biomed Pharmacother 2023; 164:114896. [PMID: 37210897 DOI: 10.1016/j.biopha.2023.114896] [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: 03/23/2023] [Revised: 05/09/2023] [Accepted: 05/15/2023] [Indexed: 05/23/2023] Open
Abstract
Oxidative stress is one of the hallmarks of cancer. Tumorigenesis and progression are accompanied by elevated reactive oxygen species (ROS) levels and adaptive elevation of antioxidant expression levels. Peroxiredoxins (PRDXs) are among the most important antioxidants and are widely distributed in a variety of cancers. PRDXs are involved in the regulation of a variety of tumor cell phenotypes, such as invasion, migration, epithelial-mesenchymal transition (EMT) and stemness. PRDXs are also associated with tumor cell resistance to cell death, such as apoptosis and ferroptosis. In addition, PRDXs are involved in the transduction of hypoxic signals in the TME and in the regulation of the function of other cellular components of the TME, such as cancer-associated fibroblasts (CAFs), natural killer (NK) cells and macrophages. This implies that PRDXs are promising targets for cancer treatment. Of course, further studies are needed to realize the clinical application of targeting PRDXs. In this review, we highlight the role of PRDXs in cancer, summarizing the basic features of PRDXs, their association with tumorigenesis, their expression and function in cancer, and their relationship with cancer therapeutic resistance.
Collapse
Affiliation(s)
- Yan Liu
- First Department of Oncology, the Fourth Affiliated Hospital of China Medical University, Shenyang 110032, Liaoning, China
| | - Pu Wang
- Department of Emergency, the Fourth Affiliated Hospital of China Medical University, Shenyang 110032, Liaoning, China
| | - Weina Hu
- Department of General Practice, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, Liaoning, China.
| | - Da Chen
- Department of Emergency, the Fourth Affiliated Hospital of China Medical University, Shenyang 110032, Liaoning, China.
| |
Collapse
|
5
|
Thapa P, Jiang H, Ding N, Hao Y, Alshahrani A, Wei Q. The Role of Peroxiredoxins in Cancer Development. BIOLOGY 2023; 12:666. [PMID: 37237480 PMCID: PMC10215932 DOI: 10.3390/biology12050666] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 04/21/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023]
Abstract
Peroxiredoxins (Prxs) are antioxidant enzymes with ubiquitous expression in human tissues. Prxs are expressed in archaea, bacteria, and eukaryota, often in multiple isoforms. Because of their abundant expression in different cellular organelles and extraordinary sensitivity to H2O2, Prxs are among the first defenses against oxidative stress. Prxs undergo reversible oxidation to disulfides, and some family members perform chaperone or phospholipase functions upon further oxidation. Prxs are upregulated in cancer cells. Research has suggested that Prxs can function as tumor promoters in various cancers. The major objective of this review is to summarize novel findings regarding the roles of Prxs in common cancer types. Prxs have been shown to influence differentiation of inflammatory cells and fibroblasts, remodeling of extracellular matrix, and regulation of stemness. Since aggressive cancer cells have higher intracellular levels of ROS that they can utilize to proliferate and metastasize compared to normal cells, it is critical that we understand the regulation and functions of primary antioxidants such as Prxs. These small but mighty proteins could prove to be key for improving cancer therapeutics and patient survival.
Collapse
Affiliation(s)
- Pratik Thapa
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, 1095 Veterans Dr, Lexington, KY 40508, USA
| | - Hong Jiang
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, 1095 Veterans Dr, Lexington, KY 40508, USA
| | - Na Ding
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, 1095 Veterans Dr, Lexington, KY 40508, USA
| | - Yanning Hao
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, 1095 Veterans Dr, Lexington, KY 40508, USA
| | - Aziza Alshahrani
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, 1095 Veterans Dr, Lexington, KY 40508, USA
| | - Qiou Wei
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, 1095 Veterans Dr, Lexington, KY 40508, USA
- Markey Cancer Center, University of Kentucky College of Medicine, 800 Rose Street, Lexington, KY 40536, USA
| |
Collapse
|
6
|
Investigating the Function of Human Jumping Translocation Breakpoint Protein (hJTB) and Its Interacting Partners through In-Solution Proteomics of MCF7 Cells. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238301. [PMID: 36500393 PMCID: PMC9740069 DOI: 10.3390/molecules27238301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 11/16/2022] [Accepted: 11/16/2022] [Indexed: 11/30/2022]
Abstract
Human jumping translocation breakpoint (hJTB) gene is located on chromosome 1q21 and is involved in unbalanced translocation in many types of cancer. JTB protein is ubiquitously present in normal cells but it is found to be overexpressed or downregulated in various types of cancer cells, where this protein and its isoforms promote mitochondrial dysfunction, resistance to apoptosis, genomic instability, proliferation, invasion and metastasis. Hence, JTB could be a tumor biomarker for different types of cancer, such as breast cancer (BC), and could be used as a drug target for therapy. However, the functions of the protein or the pathways through which it increases cell proliferation and invasiveness of cancer cells are not well-known. Therefore, we aim to investigate the functions of JTB by using in-solution digestion-based cellular proteomics of control and upregulated and downregulated JTB protein in MCF7 breast cancer cell line, taking account that in-solution digestion-based proteomics experiments are complementary to the initial in-gel based ones. Proteomics analysis allows investigation of protein dysregulation patterns that indicate the function of the protein and its interacting partners, as well as the pathways and biological processes through which it functions. We concluded that JTB dysregulation increases the epithelial-mesenchymal transition (EMT) potential and cell proliferation, harnessing cytoskeleton organization, apical junctional complex, metabolic reprogramming, and cellular proteostasis. Deregulated JTB expression was found to be associated with several proteins involved in mitochondrial organization and function, oxidative stress (OS), apoptosis, and interferon alpha and gamma signaling. Consistent and complementary to our previous results emerged by using in-gel based proteomics of transfected MCF7 cells, JTB-related proteins that are overexpressed in this experiment suggest the development of a more aggressive phenotype and behavior for this luminal type A non-invasive/poor-invasive human BC cell line that does not usually migrate or invade compared with the highly metastatic MDA-MB-231 cells. This more aggressive phenotype of MCF7 cells related to JTB dysregulation and detected by both in-gel and in-solution proteomics could be promoted by synergistic upregulation of EMT, Mitotic spindle and Fatty acid metabolism pathways. However, in both JTB dysregulated conditions, several downregulated JTB-interacting proteins predominantly sustain antitumor activities, attenuating some of the aggressive phenotypical and behavioral traits promoted by the overexpressed JTB-related partners.
Collapse
|
7
|
Essential Roles of Peroxiredoxin IV in Inflammation and Cancer. Molecules 2022; 27:molecules27196513. [PMID: 36235049 PMCID: PMC9573489 DOI: 10.3390/molecules27196513] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/21/2022] [Accepted: 09/29/2022] [Indexed: 11/22/2022] Open
Abstract
Peroxiredoxin IV (Prx4) is a 2-Cysteine peroxidase with ubiquitous expression in human tissues. Prx4 scavenges hydrogen peroxide and participates in oxidative protein folding in the endoplasmic reticulum. In addition, Prx4 is secreted outside the cell. Prx4 is upregulated in several cancers and is a potential therapeutic target. We have summarized historical and recent advances in the structure, function and biological roles of Prx4, focusing on inflammatory diseases and cancer. Oxidative stress is known to activate pro-inflammatory pathways. Chronic inflammation is a risk factor for cancer development. Hence, redox enzymes such as Prx4 are important players in the crosstalk between inflammation and cancer. Understanding molecular mechanisms of regulation of Prx4 expression and associated signaling pathways in normal physiological and disease conditions should reveal new therapeutic strategies. Thus, although Prx4 is a promising therapeutic target for inflammatory diseases and cancer, further research needs to be conducted to bridge the gap to clinical application.
Collapse
|
8
|
Abstract
Eukaryotic cells have developed complex systems to regulate the production and response to reactive oxygen species (ROS). Different ROS control diverse aspects of cell behaviour from signalling to death, and deregulation of ROS production and ROS limitation pathways are common features of cancer cells. ROS also function to modulate the tumour environment, affecting the various stromal cells that provide metabolic support, a blood supply and immune responses to the tumour. Although it is clear that ROS play important roles during tumorigenesis, it has been difficult to reliably predict the effect of ROS modulating therapies. We now understand that the responses to ROS are highly complex and dependent on multiple factors, including the types, levels, localization and persistence of ROS, as well as the origin, environment and stage of the tumours themselves. This increasing understanding of the complexity of ROS in malignancies will be key to unlocking the potential of ROS-targeting therapies for cancer treatment.
Collapse
|
9
|
Han L, Seward C, Leone G, Ostrowski MC. Origin, activation and heterogeneity of fibroblasts associated with pancreas and breast cancers. Adv Cancer Res 2022; 154:169-201. [PMID: 35459469 DOI: 10.1016/bs.acr.2022.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Pancreas and breast cancers both contain abundant stromal components within the tumor tissues. A prominent cell type within the stroma is cancer-associated fibroblasts (CAFs). CAFs play critical and complex roles establishing the tumor microenvironment to either promote or prevent tumor progression. Recently, complex genetic models and single cell-based techniques have provided emerging insights on the precise functions and cellular heterogeneity of CAFs. The transformation of normal fibroblasts into CAFs is a key event during tumor initiation and progression. Such coordination between tumor cells and fibroblasts plays an important role in cancer development. Reprograming fibroblasts is currently being explored for therapeutic benefits. In this review, we will discuss recent literature shedding light on the tissues of origin, activation mechanisms, and heterogeneity of CAFs comparing pancreas and breast cancers.
Collapse
Affiliation(s)
- Lu Han
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC, United States.
| | - Cara Seward
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC, United States
| | - Gustavo Leone
- Department of Biochemistry, Medical College of Wisconsin Cancer Center, Medical college of Wisconsin, Milwaukee, WI, United States
| | - Michael C Ostrowski
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC, United States.
| |
Collapse
|
10
|
Attaran S, Bissell MJ. The Role of Tumor Microenvironment and Exosomes in Dormancy and Relapse. Semin Cancer Biol 2021; 78:35-44. [PMID: 34757184 DOI: 10.1016/j.semcancer.2021.09.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 09/10/2021] [Accepted: 09/12/2021] [Indexed: 12/13/2022]
Abstract
Recent advancements in the field of cancer have established that the process of metastasis is organ-specific with tumor cell dissemination occurring in the very early stages of disease. Pre-metastatic niches are actively remodeled and transformed by both primary tumor specific factors and by influences from the extracellular matrix.Although improvements in cancer therapies have significantly improved outcomes in patients with early stage disease, the risk of recurrence and relapse leading to mortality remains high. Recent studies have emerged highlighting the influence of dormant tumor cells and exosomes as key players in cancer relapse. In this review we discuss the critical mediators of tumor progression and their link to cancer dormancy, while also exploring possible therapeutics for targeting relapse.
Collapse
Affiliation(s)
- Shireen Attaran
- Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, United States
| | - Mina J Bissell
- Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, United States
| |
Collapse
|
11
|
Attaran S, Skoko JJ, Hopkins BL, Wright MK, Wood LE, Asan A, Woo HA, Feinberg A, Neumann CA. Peroxiredoxin-1 Tyr194 phosphorylation regulates LOX-dependent extracellular matrix remodelling in breast cancer. Br J Cancer 2021; 125:1146-1157. [PMID: 34389806 PMCID: PMC8505437 DOI: 10.1038/s41416-021-01510-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 06/22/2021] [Accepted: 07/21/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Peroxiredoxin 1 (PRDX1) belongs to an abundant family of peroxidases whose role in cancer is still unresolved. While mouse knockout studies demonstrate a tumour suppressive role for PRDX1, in cancer cell xenografts, results denote PRDX1 as a drug target. Probably, this phenotypic discrepancy stems from distinct roles of PRDX1 in certain cell types or stages of tumour progression. METHODS We demonstrate an important cell-autonomous function for PRDX1 utilising a syngeneic mouse model (BALB/c) and mammary fibroblasts (MFs) obtained from it. RESULTS Loss of PRDX1 in vivo promotes collagen remodelling known to promote breast cancer progression. PRDX1 inactivation in MFs occurs via SRC-induced phosphorylation of PRDX1 TYR194 and not through the expected direct oxidation of CYS52 in PRDX1 by ROS. TYR194-phosphorylated PRDX1 fails to bind to lysyl oxidases (LOX) and leads to the accumulation of extracellular LOX proteins which supports enhanced collagen remodelling associated with breast cancer progression. CONCLUSIONS This study reveals a cell type-specific tumour suppressive role for PRDX1 that is supported by survival analyses, depending on PRDX1 protein levels in breast cancer cohorts.
Collapse
Affiliation(s)
- Shireen Attaran
- Department of Pharmacology & Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
- Women's Cancer Research Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA
| | - John J Skoko
- Department of Pharmacology & Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
- Women's Cancer Research Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA
| | - Barbara L Hopkins
- Women's Cancer Research Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, PA, USA
| | - Megan K Wright
- University of Pittsburgh, School of Medicine, Pittsburgh, PA, USA
| | - Laurel E Wood
- Department of Pharmacology & Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Alparslan Asan
- Department of Pharmacology & Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
- Women's Cancer Research Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA
| | - Hyun Ae Woo
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Adam Feinberg
- Department of Materials Science and Engineering and Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Carola A Neumann
- Department of Pharmacology & Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA.
- Women's Cancer Research Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA.
| |
Collapse
|
12
|
PRDX1 is essential for the viability and maintenance of reactive oxygen species in chicken DT40. Genes Environ 2021; 43:35. [PMID: 34353368 PMCID: PMC8340460 DOI: 10.1186/s41021-021-00211-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 07/26/2021] [Indexed: 11/10/2022] Open
Abstract
Background Peroxiredoxin 1 (PRDX1) is a member of a ubiquitous family of thiol peroxidases that catalyze the reduction of peroxides, including hydrogen peroxide. It functions as an antioxidant enzyme, similar to catalase and glutathione peroxidase. PRDX1 was recently shown act as a sensor of reactive oxygen species (ROS) and play a role in ROS-dependent intracellular signaling pathways. To investigate its physiological functions, PRDX1 was conditionally disrupted in chicken DT40 cells in the present study. Results The depletion of PRDX1 resulted in cell death with increased levels of intracellular ROS. PRDX1-depleted cells did not show the accumulation of chromosomal breaks or sister chromatid exchange (SCE). These results suggest that cell death in PRDX1-depleted cells was not due to DNA damage. 2-Mercaptoethanol protected against cell death in PRDX1-depleted cells and also suppressed elevations in ROS. Conclusions PRDX1 is essential in chicken DT40 cells and plays an important role in maintaining intracellular ROS homeostasis (or in the fine-tuning of cellular ROS levels). Cells deficient in PRDX1 may be used as an endogenously deregulated ROS model to elucidate the physiological roles of ROS in maintaining proper cell growth.
Collapse
|
13
|
Lee YJ. Knockout Mouse Models for Peroxiredoxins. Antioxidants (Basel) 2020; 9:antiox9020182. [PMID: 32098329 PMCID: PMC7070531 DOI: 10.3390/antiox9020182] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/16/2020] [Accepted: 02/20/2020] [Indexed: 12/12/2022] Open
Abstract
Peroxiredoxins (PRDXs) are members of a highly conserved peroxidase family and maintain intracellular reactive oxygen species (ROS) homeostasis. The family members are expressed in most organisms and involved in various biological processes, such as cellular protection against ROS, inflammation, carcinogenesis, atherosclerosis, heart diseases, and metabolism. In mammals, six PRDX members have been identified and are subdivided into three subfamilies: typical 2-Cys (PRDX1, PRDX2, PRDX3, and PRDX4), atypical 2-Cys (PRDX5), and 1-Cys (PRDX6) subfamilies. Knockout mouse models of PRDXs have been developed to investigate their in vivo roles. This review presents an overview of the knockout mouse models of PRDXs with emphases on the biological and physiological changes of these model mice.
Collapse
Affiliation(s)
- Young Jae Lee
- Department of Biochemistry, College of Medicine, Gachon University, Incheon 21999, Korea
| |
Collapse
|