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Lee MK, Zhang X, Kim HJ, Hwang YS. Peroxiredoxin 5 is involved in cancer cell invasion and tumor growth of oral squamous cell carcinoma. Oral Dis 2023; 29:423-435. [PMID: 33969595 DOI: 10.1111/odi.13910] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 04/27/2021] [Accepted: 05/02/2021] [Indexed: 02/05/2023]
Abstract
OBJECTIVES Peroxiredoxins (Prxs) are antioxidant enzymes that can coordinate cell signal transduction via reactive species scavenging or by acting as redox sensors. The mechanism by which Prxs promote cancer invasion and progression is not yet fully understood. This study aims to elucidate the precise mechanism through which Prx type 5 (Prx5) promotes cancer invasion and tumor growth. MATERIALS AND METHODS We analyzed the Prx5 expression in oral squamous cell carcinoma (OSCC) by using microarray analysis for gene expression profiling. To identify Prx5 function in cancer, lentiviral short hairpin RNA was used for Prx5 depletion, and invasion assay and mouse xenograft were performed. RESULTS In microarray data obtained from OSCC patients, Prx5 showed higher expression at the tumor margin (TM) compared to the tumor center (TC) of the collective invasion. The depletion of Prx5 in OSCC cells (Prx5dep ) led to decreased invasion activity. In orthotopic xenograft models, Prx5dep cells harbored delimited tumorigenicity compared to wild-type cells as well as the suppression of lymph node metastasis. Prx5dep cells showed growth retardation and increased cellular reactive oxygen species (ROS) levels. The growth retardation of Prx5dep cells resulted in G1 phase arrest. CONCLUSIONS This study provides evidence that Prx5 removes excess ROS, especially in the TM, contributing to cancer invasion and tumor progression.
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Affiliation(s)
- Min Kyeong Lee
- Department of Dental Hygiene, College of Health Science, Eulji University, Republic of Korea
| | - Xianglan Zhang
- Department of Pathology, Yanbian University Hospital, Yanji, China.,Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Hyung Jun Kim
- Department of Oral Maxillofacial Surgery, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Young Sun Hwang
- Department of Dental Hygiene, College of Health Science, Eulji University, Republic of Korea
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2
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Ismail T, Kim Y, Lee H, Lee DS, Lee HS. Interplay Between Mitochondrial Peroxiredoxins and ROS in Cancer Development and Progression. Int J Mol Sci 2019; 20:ijms20184407. [PMID: 31500275 PMCID: PMC6770548 DOI: 10.3390/ijms20184407] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/04/2019] [Accepted: 09/05/2019] [Indexed: 12/14/2022] Open
Abstract
Mitochondria are multifunctional cellular organelles that are major producers of reactive oxygen species (ROS) in eukaryotes; to maintain the redox balance, they are supplemented with different ROS scavengers, including mitochondrial peroxiredoxins (Prdxs). Mitochondrial Prdxs have physiological and pathological significance and are associated with the initiation and progression of various cancer types. In this review, we have focused on signaling involving ROS and mitochondrial Prdxs that is associated with cancer development and progression. An upregulated expression of Prdx3 and Prdx5 has been reported in different cancer types, such as breast, ovarian, endometrial, and lung cancers, as well as in Hodgkin's lymphoma and hepatocellular carcinoma. The expression of Prdx3 and Prdx5 in different types of malignancies involves their association with different factors, such as transcription factors, micro RNAs, tumor suppressors, response elements, and oncogenic genes. The microenvironment of mitochondrial Prdxs plays an important role in cancer development, as cancerous cells are equipped with a high level of antioxidants to overcome excessive ROS production. However, an increased production of Prdx3 and Prdx5 is associated with the development of chemoresistance in certain types of cancers and it leads to further complications in cancer treatment. Understanding the interplay between mitochondrial Prdxs and ROS in carcinogenesis can be useful in the development of anticancer drugs with better proficiency and decreased resistance. However, more targeted studies are required for exploring the tumor microenvironment in association with mitochondrial Prdxs to improve the existing cancer therapies and drug development.
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Affiliation(s)
- Tayaba Ismail
- KNU-Center for Nonlinear Dynamics, CMRI, School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea.
| | - Youni Kim
- KNU-Center for Nonlinear Dynamics, CMRI, School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea.
| | - Hongchan Lee
- KNU-Center for Nonlinear Dynamics, CMRI, School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea.
| | - Dong-Seok Lee
- KNU-Center for Nonlinear Dynamics, CMRI, School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea.
| | - Hyun-Shik Lee
- KNU-Center for Nonlinear Dynamics, CMRI, School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea.
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3
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Wang M, Niu W, Qi M, Chen H, Zhang M, Wang C, Ge L, Yang J, Miao C, Shi N, Chen T, Tang X. Nicotine promotes cervical metastasis of oral cancer by regulating peroxiredoxin 1 and epithelial-mesenchymal transition in mice. Onco Targets Ther 2019; 12:3327-3338. [PMID: 31118684 PMCID: PMC6501726 DOI: 10.2147/ott.s194129] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background Tobacco is a major risk factor for oral squamous cell carcinoma (OSCC). However, the role of nicotine in OSCC is not completely understood. Materials and methods To analyze the mechanisms of nicotine-induced cervical metastasis, we investigated whether nicotine induced invasion, migration, and epithelial–mesenchymal transition (EMT) via regulating peroxiredoxin 1 (Prx1) in CAL 27 cells. In addition, we established a mouse model to confirm the roles of nicotine in regulating Ets1/Prx1/EMT signaling in OSCC metastasis. Results We showed that nicotine induced CAL 27 cell invasion, migration, EMT, and Prx1 and Ets1 expression. Prx1 knockdown inhibited cell invasion, migration, and EMT. Ets1 silencing downregulated Prx1 expression and EMT. Prx1 and Ets1 were shown to interact in CAL 27 cells treated with nicotine, and nicotine could significantly upregulate the binding of the transcription factor Ets1 to the Prx1 gene promoter region. Additionally, an in vivo study showed that nicotine induced tumor metastasis and EMT. Prx1 knockdown inhibited cervical metastasis rates and EMT progression. No significant differences in metastasis rates and EMT-related marker expression levels were observed between vehicle- and nicotine-treated mice. Conclusion The results indicate that nicotine promotes cervical lymph node metastasis through regulating Ets1/Prx1/EMT signaling during OSCC pathogenesis; consequently, Prx1 may represent a potential target for the prevention and treatment of OSCC.
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Affiliation(s)
- Min Wang
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China,
| | - Wenwen Niu
- Beijing Shibalidian Community Hospital, Beijing, People's Republic of China
| | - Moci Qi
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China,
| | - Hui Chen
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China,
| | - Min Zhang
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China,
| | - Chunxiao Wang
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China,
| | - Lihua Ge
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China,
| | - Jing Yang
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China,
| | - Congcong Miao
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China,
| | - Ni Shi
- Division of Medical Oncology, Department of Internal Medicine, The Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH 43210, USA,
| | - Tong Chen
- Division of Medical Oncology, Department of Internal Medicine, The Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH 43210, USA,
| | - Xiaofei Tang
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, Beijing 100050, People's Republic of China,
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4
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Vaz C, Reales-Calderon JA, Pitarch A, Vellosillo P, Trevisan M, Hernáez ML, Monteoliva L, Gil C. Enrichment of ATP Binding Proteins Unveils Proteomic Alterations in Human Macrophage Cell Death, Inflammatory Response, and Protein Synthesis after Interaction with Candida albicans. J Proteome Res 2019; 18:2139-2159. [PMID: 30985132 DOI: 10.1021/acs.jproteome.9b00032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Macrophages are involved in the primary human response to Candida albicans. After pathogen recognition, signaling pathways are activated, leading to the production of cytokines, chemokines, and antimicrobial peptides. ATP binding proteins are crucial for this regulation. Here, a quantitative proteomic and phosphoproteomic approach was carried out for the study of human macrophage ATP-binding proteins after interaction with C. albicans. From a total of 547 nonredundant quantified proteins, 137 were ATP binding proteins and 59 were detected as differentially abundant. From the differentially abundant ATP-binding proteins, 6 were kinases (MAP2K2, SYK, STK3, MAP3K2, NDKA, and SRPK1), most of them involved in signaling pathways. Furthermore, 85 phosphopeptides were quantified. Macrophage proteomic alterations including an increase of protein synthesis with a consistent decrease in proteolysis were observed. Besides, macrophages showed changes in proteins of endosomal trafficking together with mitochondrial proteins, including some involved in the response to oxidative stress. Regarding cell death mechanisms, an increase of antiapoptotic over pro-apoptotic signals is suggested. Furthermore, a high pro-inflammatory response was detected, together with no upregulation of key mi-RNAs involved in the negative feedback of this response. These findings illustrate a strategy to deepen the knowledge of the complex interactions between the host and the clinically important pathogen C. albicans.
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Affiliation(s)
- Catarina Vaz
- Departamento de Microbiologı́a y Parasitología, Facultad de Farmacia , Universidad Complutense de Madrid , 28040 Madrid , Spain.,Instituto Ramón y Cajal de Investigación Sanitaria IRYCIS , 28034 Madrid , Spain
| | - Jose Antonio Reales-Calderon
- Departamento de Microbiologı́a y Parasitología, Facultad de Farmacia , Universidad Complutense de Madrid , 28040 Madrid , Spain.,Instituto Ramón y Cajal de Investigación Sanitaria IRYCIS , 28034 Madrid , Spain
| | - Aida Pitarch
- Departamento de Microbiologı́a y Parasitología, Facultad de Farmacia , Universidad Complutense de Madrid , 28040 Madrid , Spain.,Instituto Ramón y Cajal de Investigación Sanitaria IRYCIS , 28034 Madrid , Spain
| | - Perceval Vellosillo
- Departamento de Microbiologı́a y Parasitología, Facultad de Farmacia , Universidad Complutense de Madrid , 28040 Madrid , Spain
| | - Marco Trevisan
- Laboratorio de Proteómica Cardiovascular , Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) , 28029 Madrid , Spain
| | - María Luisa Hernáez
- Unidad de Proteómica , Universidad Complutense de Madrid , 28040 Madrid , Spain
| | - Lucía Monteoliva
- Departamento de Microbiologı́a y Parasitología, Facultad de Farmacia , Universidad Complutense de Madrid , 28040 Madrid , Spain.,Instituto Ramón y Cajal de Investigación Sanitaria IRYCIS , 28034 Madrid , Spain
| | - Concha Gil
- Departamento de Microbiologı́a y Parasitología, Facultad de Farmacia , Universidad Complutense de Madrid , 28040 Madrid , Spain.,Instituto Ramón y Cajal de Investigación Sanitaria IRYCIS , 28034 Madrid , Spain.,Unidad de Proteómica , Universidad Complutense de Madrid , 28040 Madrid , Spain
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5
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Hypoxia tolerance in the Norrin-deficient retina and the chronically hypoxic brain studied at single-cell resolution. Proc Natl Acad Sci U S A 2019; 116:9103-9114. [PMID: 30988181 DOI: 10.1073/pnas.1821122116] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The mammalian CNS is capable of tolerating chronic hypoxia, but cell type-specific responses to this stress have not been systematically characterized. In the Norrin KO (Ndp KO ) mouse, a model of familial exudative vitreoretinopathy (FEVR), developmental hypovascularization of the retina produces chronic hypoxia of inner nuclear-layer (INL) neurons and Muller glia. We used single-cell RNA sequencing, untargeted metabolomics, and metabolite labeling from 13C-glucose to compare WT and Ndp KO retinas. In Ndp KO retinas, we observe gene expression responses consistent with hypoxia in Muller glia and retinal neurons, and we find a metabolic shift that combines reduced flux through the TCA cycle with increased synthesis of serine, glycine, and glutathione. We also used single-cell RNA sequencing to compare the responses of individual cell types in Ndp KO retinas with those in the hypoxic cerebral cortex of mice that were housed for 1 week in a reduced oxygen environment (7.5% oxygen). In the hypoxic cerebral cortex, glial transcriptome responses most closely resemble the response of Muller glia in the Ndp KO retina. In both retina and brain, vascular endothelial cells activate a previously dormant tip cell gene expression program, which likely underlies the adaptive neoangiogenic response to chronic hypoxia. These analyses of retina and brain transcriptomes at single-cell resolution reveal both shared and cell type-specific changes in gene expression in response to chronic hypoxia, implying both shared and distinct cell type-specific physiologic responses.
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6
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Chen R, Zhu S, Fan XG, Wang H, Lotze MT, Zeh HJ, Billiar TR, Kang R, Tang D. High mobility group protein B1 controls liver cancer initiation through yes-associated protein -dependent aerobic glycolysis. Hepatology 2018; 67:1823-1841. [PMID: 29149457 PMCID: PMC5906197 DOI: 10.1002/hep.29663] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 09/01/2017] [Accepted: 11/13/2017] [Indexed: 12/11/2022]
Abstract
Emerging studies have suggested that the Hippo pathway is involved in the tumorigenesis of hepatocellular carcinoma (HCC). However, the key regulator of the Hippo pathway in liver tumor metabolic reprogramming remains elusive. Here, we provide evidence that high mobility group box 1 (HMGB1), a chromosomal protein, plays a role in the regulation of the Hippo pathway during liver tumorigenesis. Cre/loxP recombination-mediated HMGB1 depletion in hepatocytes blocks diethylnitrosamine-induced liver cancer initiation in mice, whereas short hairpin RNA-mediated gene silencing of HMGB1 inhibits HCC cell proliferation. Mechanistically, the binding of HMGB1 to GA-binding protein alpha promotes the expression of yes-associated protein (YAP), a major downstream effector of the Hippo pathway that contributes to liver tumorigenesis by inducing hypoxia-inducible factor 1α (HIF1α)-dependent aerobic glycolysis. Like wild-type YAP-complementary DNA, YAP-5SA-S94A can restore HIF1α DNA binding activity, glycolysis-associated gene expression, and HIF1α-YAP complex formation in YAP-knockdown HCC cell lines. In contrast, verteporfin, a reagent targeting the interface between YAP and TEA domain transcription factor, has the ability to block YAP-HIF1α complex formation. Notably, genetic or pharmacologic inhibition of the HMGB1-YAP-HIF1α pathway confers protection against excessive glycolysis and tumor growth in mice. CONCLUSION These findings demonstrate that HMGB1 plays a novel role in modulating the YAP-dependent HIF1α pathway and shed light on the development of metabolism-targeting therapeutics for HCC chemoprevention. (Hepatology 2018;67:1823-1841).
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Affiliation(s)
- Ruochan Chen
- The Third Affiliated Hospital, Center for DAMP Biology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Protein Modification and Degradation Laboratory, Guangzhou Medical University, Guangzhou, Guangdong, 510510, China
- Department of Infectious Diseases and State Key Lab of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Shan Zhu
- The Third Affiliated Hospital, Center for DAMP Biology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Protein Modification and Degradation Laboratory, Guangzhou Medical University, Guangzhou, Guangdong, 510510, China
| | - Xue-Gong Fan
- Department of Infectious Diseases and State Key Lab of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Haichao Wang
- Laboratory of Emergency Medicine, North Shore University Hospital and The Feinstein Institute for Medical Research, Manhasset, New York 11030, USA
| | - Michael T. Lotze
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Herbert J. Zeh
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Timothy R. Billiar
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Rui Kang
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Daolin Tang
- The Third Affiliated Hospital, Center for DAMP Biology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Protein Modification and Degradation Laboratory, Guangzhou Medical University, Guangzhou, Guangdong, 510510, China
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7
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Nicolussi A, D'Inzeo S, Capalbo C, Giannini G, Coppa A. The role of peroxiredoxins in cancer. Mol Clin Oncol 2017; 6:139-153. [PMID: 28357082 PMCID: PMC5351761 DOI: 10.3892/mco.2017.1129] [Citation(s) in RCA: 136] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 11/17/2016] [Indexed: 12/11/2022] Open
Abstract
Peroxiredoxins (PRDXs) are a ubiquitously expressed family of small (22–27 kDa) non-seleno peroxidases that catalyze the peroxide reduction of H2O2, organic hydroperoxides and peroxynitrite. They are highly involved in the control of various physiological functions, including cell growth, differentiation, apoptosis, embryonic development, lipid metabolism, the immune response, as well as cellular homeostasis. Although the protective role of PRDXs in cardiovascular and neurological diseases is well established, their role in cancer remains controversial. Increasing evidence suggests the involvement of PRDXs in carcinogenesis and in the development of drug resistance. Numerous types of cancer cells, in fact, are characterized by an increase in reactive oxygen species (ROS) production, and often exhibit an altered redox environment compared with normal cells. The present review focuses on the complex association between oxidant balance and cancer, and it provides a brief account of the involvement of PRDXs in tumorigenesis and in the development of chemoresistance.
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Affiliation(s)
- Arianna Nicolussi
- Department of Experimental Medicine, Sapienza University of Rome, I-00161 Rome, Italy
| | - Sonia D'Inzeo
- Department of Experimental Medicine, Sapienza University of Rome, I-00161 Rome, Italy
| | - Carlo Capalbo
- Department of Molecular Medicine, Sapienza University of Rome, I-00161 Rome, Italy
| | - Giuseppe Giannini
- Department of Molecular Medicine, Sapienza University of Rome, I-00161 Rome, Italy
| | - Anna Coppa
- Department of Experimental Medicine, Sapienza University of Rome, I-00161 Rome, Italy
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8
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Ding C, Fan X, Wu G. Peroxiredoxin 1 - an antioxidant enzyme in cancer. J Cell Mol Med 2016; 21:193-202. [PMID: 27653015 PMCID: PMC5192802 DOI: 10.1111/jcmm.12955] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 07/17/2016] [Indexed: 12/11/2022] Open
Abstract
Peroxiredoxins (PRDXs), a ubiquitous family of redox‐regulating proteins, are reported of potential to eliminate various reactive oxygen species (ROS). As a major member of the antioxidant enzymes, PRDX1 can become easily over‐oxidized on its catalytically active cysteine induced by a variety of stimuli in vitro and in vivo. In nucleus, oligomeric PRDX1 directly associates with p53 or transcription factors such as c‐Myc, NF‐κB and AR, and thus affects their bioactivities upon gene regulation, which in turn induces or suppresses cell death. Additionally, PRDX1 in cytoplasm has anti‐apoptotic potential through direct or indirect interactions with several ROS‐dependent (redox regulation) effectors, including ASK1, p66Shc, GSTpi/JNK and c‐Abl kinase. PRDX1 is proven to be a versatile molecule regulating cell growth, differentiation and apoptosis. Recent studies have found that PRDX1 and/or PRDX1‐regulated ROS‐dependent signalling pathways play an important role in the progression and metastasis of human tumours, particularly in breast, oesophageal and lung cancers. In this paper, we review the structure, effector functions of PRDX1, its role in cancer and the pivotal role of ROS in anticancer treatment.
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Affiliation(s)
- Chenbo Ding
- Medical School of Southeast University, Nanjing, China
| | - Xiaobo Fan
- Medical School of Southeast University, Nanjing, China
| | - Guoqiu Wu
- Medical School of Southeast University, Nanjing, China.,Center of Clinical Laboratory Medicine, Zhongda Hospital, Southeast University, Nanjing, China
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9
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Li Q, Yang L, Han K, Zhu L, Zhang Y, Ma S, Zhang K, Yang B, Guan F. Ets2 knockdown inhibits tumorigenesis in esophageal squamous cell carcinoma in vivo and in vitro. Oncotarget 2016; 7:61458-61468. [PMID: 27556183 PMCID: PMC5308664 DOI: 10.18632/oncotarget.11369] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 08/08/2016] [Indexed: 01/13/2023] Open
Abstract
Increased expression of Ets2 is reported upregulated in esophageal squamous cell carcinoma tissue. However, the function of Ets2 in carcinogenesis of ESCC is poorly understood. Here, the rise of Ets2 was confirmed in ESCC cells and Ets2 depletion by RNA interference promotes cell apoptosis, inhibits cell proliferation, attenuates cell invasion and induces cell cycle G0/G1 arrest in vitro. Moreover, in vivo, Xenograft mouse model studies showed Ets2 knockdown inhibits tumor formation and metastasis significantly. Furthermore, Ets2 depletion inactivates the mTOR/p70S6K signaling pathway both in vitro and in vivo. Taken together, these findings strongly suggest that a critical role of Ets2 in human ESCC pathogenesis via the inactivation of the mTOR/p70S6K signaling pathway.
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Affiliation(s)
- Qinghua Li
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China.,School of Life Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Lu Yang
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Kang Han
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Liqiang Zhu
- The Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450002, Henan Province, China
| | - Yanting Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Shanshan Ma
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Kun Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Bo Yang
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
| | - Fangxia Guan
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China.,School of Life Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
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10
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Redmond AM, Byrne C, Bane FT, Brown GD, Tibbitts P, O'Brien K, Hill ADK, Carroll JS, Young LS. Genomic interaction between ER and HMGB2 identifies DDX18 as a novel driver of endocrine resistance in breast cancer cells. Oncogene 2015; 34:3871-80. [PMID: 25284587 DOI: 10.1038/onc.2014.323] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 08/04/2014] [Accepted: 08/24/2014] [Indexed: 01/01/2023]
Abstract
Breast cancer resistance to endocrine therapies such as tamoxifen and aromatase inhibitors is a significant clinical problem. Steroid receptor coactivator-1 (SRC-1), a coregulatory protein of the oestrogen receptor (ER), has previously been shown to have a significant role in the progression of breast cancer. The chromatin protein high mobility group box 2 (HMGB2) was identified as an SRC-1 interacting protein in the endocrine-resistant setting. We investigated the expression of HMGB2 in a cohort of 1068 breast cancer patients and found an association with increased disease-free survival time in patients treated with endocrine therapy. However, it was also verified that HMGB2 expression could be switched on in endocrine-resistant tumours from breast cancer patients. To explore the function of this poorly characterized protein, we performed HMGB2 ChIPseq and found distinct binding patterns between the two contexts. In the resistant setting, the HMGB2, SRC-1 and ER complex are enriched at promoter regions of target genes, with bioinformatic analysis indicating a switch in binding partners between the sensitive and resistant phenotypes. Integration of binding and gene expression data reveals a concise set of target genes of this complex including the RNA helicase DDX18. Modulation of DDX18 directly affects growth of tamoxifen-resistant cells, suggesting that it may be a critical downstream effector of the HMGB2:ER complex. This study defines HMGB2 interactions with the ER complex at specific target genes in the tamoxifen-resistant setting.
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MESH Headings
- Animals
- Antineoplastic Agents, Hormonal/pharmacology
- Antineoplastic Agents, Hormonal/therapeutic use
- Breast Neoplasms/drug therapy
- Breast Neoplasms/genetics
- Breast Neoplasms/metabolism
- Cell Line, Tumor
- Cell Proliferation/genetics
- DEAD-box RNA Helicases/genetics
- DEAD-box RNA Helicases/metabolism
- Drug Resistance, Neoplasm/genetics
- Female
- Gene Expression Profiling
- Gene Expression Regulation, Neoplastic
- HMGB2 Protein/genetics
- HMGB2 Protein/metabolism
- Humans
- Kaplan-Meier Estimate
- MCF-7 Cells
- Mice, Inbred BALB C
- Mice, SCID
- Nuclear Receptor Coactivator 1/genetics
- Nuclear Receptor Coactivator 1/metabolism
- Oligonucleotide Array Sequence Analysis
- Promoter Regions, Genetic/genetics
- Protein Binding
- RNA Interference
- Receptors, Estrogen/genetics
- Receptors, Estrogen/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Tamoxifen/pharmacology
- Tamoxifen/therapeutic use
- Xenograft Model Antitumor Assays
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Affiliation(s)
- A M Redmond
- 1] Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland [2] Cancer Research UK, Cambridge Institute, University of Cambridge, Cambridge, UK
| | - C Byrne
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - F T Bane
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - G D Brown
- Cancer Research UK, Cambridge Institute, University of Cambridge, Cambridge, UK
| | - P Tibbitts
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - K O'Brien
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - A D K Hill
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - J S Carroll
- Cancer Research UK, Cambridge Institute, University of Cambridge, Cambridge, UK
| | - L S Young
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
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11
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Ahn SH, Yang HY, Tran GB, Kwon J, Son KY, Kim S, Dinh QT, Jung S, Lee HM, Cho KO, Lee TH. Interaction of peroxiredoxin V with dihydrolipoamide branched chain transacylase E2 (DBT) in mouse kidney under hypoxia. Proteome Sci 2015; 13:4. [PMID: 25670924 PMCID: PMC4323032 DOI: 10.1186/s12953-014-0061-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 12/23/2014] [Indexed: 11/28/2022] Open
Abstract
Background Peroxiredoxin V (Prdx V) plays a major role in preventing oxidative damage as an effective antioxidant protein within a variety of cells through peroxidase activity. However, the function of Prdx V is not limited to peroxidase enzymatic activity per se. It appears to have unique function in regulating cellular response to external stimuli by directing interaction with signaling protein. In this study, we identified Prdx V interacting partners in mouse kidney under hypoxic stress using immunoprecipitation and shotgun proteomic analysis (LC-MS/MS). Results Immunoprecipitation coupled with nano-UPLC-MSE shotgun proteomics was employed to identify putative interacting partners of Prdx V in mouse kidney in the setting of hypoxia. A total of 17 proteins were identified as potential interacting partners of Prdx V by a comparative interactomics analysis in kidney under normoxia versus hypoxia. Dihydrolipoamide branched chain transacylase E2 (DBT) appeared to be a prominent candidate protein displaying enhanced interaction with Prdx V under hypoxic stress. Moreover, hypoxic kidney exhibited altered DBT enzymatic activity compared to normoxia. An enhanced colocalization of these two proteins under hypoxic stress was successfully observed in vitro. Furthermore, peroxidatic cysteine residue (Cys48) of Prdx V is likely to be responsible for interacting with DBT. Conclusions We identified several proteins interacting with Prdx V under hypoxic condition known to induce renal oxidative stress. In hypoxic condition, we observed an enhanced interaction of Prdx V and DBT protein as well as increased DBT enzymatic activity. The results from this study will contribute to enhance our understanding of Prdx V’s role in hypoxic stress and may suggest new directions for future research. Electronic supplementary material The online version of this article (doi:10.1186/s12953-014-0061-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sun Hee Ahn
- Department of Oral Biochemistry, Dental Science Research Institute, Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, 300 Yongbong-Dong, Buk-Ku, Gwangju, 500-757 Republic of Korea
| | - Hee-Young Yang
- Department of Oral Biochemistry, Dental Science Research Institute, Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, 300 Yongbong-Dong, Buk-Ku, Gwangju, 500-757 Republic of Korea
| | - Gia Buu Tran
- Department of Molecular Medicine, Graduate School, Chonnam National University, Gwangju, Republic of Korea
| | - Joseph Kwon
- Korea Basic Science Institute, Daejeon, Republic of Korea
| | - Kyu-Yeol Son
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Suhee Kim
- Department of Oral Biochemistry, Dental Science Research Institute, Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, 300 Yongbong-Dong, Buk-Ku, Gwangju, 500-757 Republic of Korea
| | - Quoc Thuong Dinh
- Department of Molecular Medicine, Graduate School, Chonnam National University, Gwangju, Republic of Korea
| | - Seunggon Jung
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Ha-Mi Lee
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Kyoung-Oh Cho
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Tae-Hoon Lee
- Department of Oral Biochemistry, Dental Science Research Institute, Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, 300 Yongbong-Dong, Buk-Ku, Gwangju, 500-757 Republic of Korea.,Department of Molecular Medicine, Graduate School, Chonnam National University, Gwangju, Republic of Korea
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12
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Kuma A, Yamada S, Wang KY, Kitamura N, Yamaguchi T, Iwai Y, Izumi H, Tamura M, Otsuji Y, Kohno K. Role of WNT10A-expressing kidney fibroblasts in acute interstitial nephritis. PLoS One 2014; 9:e103240. [PMID: 25054240 PMCID: PMC4108433 DOI: 10.1371/journal.pone.0103240] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 06/26/2014] [Indexed: 12/01/2022] Open
Abstract
WNT signaling mediates various physiological and pathological processes. We previously showed that WNT10A is a novel angio/stromagenic factor involved in such processes as tumor growth, wound healing and tissue fibrosis. In this study, we investigated the role of WNT10A in promoting the fibrosis that is central to the pathology of acute interstitial nephritis (AIN). We initially asked whether there is an association between kidney function (estimated glomerular filtration rate; eGFR) and WNT10A expression using kidney biopsies from 20 patients with AIN. Interestingly, patients with WNT10A expression had significantly lower eGFR than WNT10A-negative patients. However, changes in kidney function were not related to the level of expression of other WNT family members. Furthermore, there was positive correlation between WNT10A and α-SMA expression. We next investigated the involvement of WNT10A in kidney fibrosis processes using COS1 cells, a kidney fibroblast cell line. WNT10A overexpression increased the level of expression of fibronectin and peroxiredoxin 5. Furthermore, WNT10A overexpression renders cells resistant to apoptosis induced by hydrogen peroxide and high glucose. Collectively, WNT10A may induce kidney fibrosis and associate with kidney dysfunction in AIN.
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Affiliation(s)
- Akihiro Kuma
- Department of Molecular Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
- Second Department of Internal Medicine, Cardiology and Nephrology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Sohsuke Yamada
- Department of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Ke-Yong Wang
- Bio-information Research Center, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Noriaki Kitamura
- Department of Molecular Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Takahiro Yamaguchi
- Department of Molecular Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Yoshiko Iwai
- Department of Molecular Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Hiroto Izumi
- Department of Occupational Pneumology, Institute of Industrial Ecological Science, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Masahito Tamura
- Second Department of Internal Medicine, Cardiology and Nephrology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Yutaka Otsuji
- Second Department of Internal Medicine, Cardiology and Nephrology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Kimitoshi Kohno
- The President Laboratory, University of Occupational and Environmental Health, Kitakyushu, Japan
- * E-mail:
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13
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HMGB1: A Promising Therapeutic Target for Prostate Cancer. Prostate Cancer 2013; 2013:157103. [PMID: 23766911 PMCID: PMC3666291 DOI: 10.1155/2013/157103] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Accepted: 04/15/2013] [Indexed: 12/16/2022] Open
Abstract
High mobility group box 1 (HMGB1) was originally discovered as a chromatin-binding protein several decades ago. It is now increasingly evident that HMGB1 plays a major role in several disease conditions such as atherosclerosis, diabetes, arthritis, sepsis, and cancer. It is intriguing how deregulation of HMGB1 can result in a myriad of disease conditions. Interestingly, HMGB1 is involved in cell proliferation, angiogenesis, and metastasis during cancer progression. Furthermore, HMGB1 has been demonstrated to exert intracellular and extracellular functions, activating key oncogenic signaling pathways. This paper focuses on the role of HMGB1 in prostate cancer development and highlights the potential of HMGB1 to serve as a key target for prostate cancer treatment.
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14
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Vaziri B, Torkashvand F, Eslami N, Fayaz A. Comparative proteomics analysis of mice lymphocytes in early stages of infection by different strains of rabies virus. INDIAN JOURNAL OF VIROLOGY : AN OFFICIAL ORGAN OF INDIAN VIROLOGICAL SOCIETY 2012; 23:311-6. [PMID: 24293818 DOI: 10.1007/s13337-012-0093-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2011] [Accepted: 07/06/2012] [Indexed: 02/04/2023]
Abstract
The CNS immune response to rabies virus has been shown to be influenced by virulence of the virus strains. There is no comprehensive report of the peripheral immune response against different strains of rabies virus. In this report we used a comparative proteome analysis to find the early events in the spleen lymphocytes of mice infected by a street strain and an attenuated strain of the rabies virus. Differentially expressed proteins were identified which play important biological roles such as T and B lymphocyte activation (coronin 1), antiviral activity (peroxiredoxin 1), and cytoskeletal reorganization (cofilin 1). These results could be strong hints of early divergence on peripheral immune response under influence of viral strain and their pathogenicity.
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Affiliation(s)
- Behrouz Vaziri
- Protein Chemistry Unit, Biotechnology Research Center, Pasteur Institute of Iran, 69, Pasteur St, 13164 Tehran, Iran
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15
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Zeng ZJ, Johansson E, Hayashi A, Chavali PL, Akrap N, Yoshida T, Kohno K, Izumi H, Funa K. TLX controls angiogenesis through interaction with the von Hippel-Lindau protein. Biol Open 2012; 1:527-35. [PMID: 23213445 PMCID: PMC3509445 DOI: 10.1242/bio.2012893] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
TLX is known as the orphan nuclear receptor indispensable for maintaining neural stem cells in adult neurogenesis. We report here that neuroblastoma cell lines express high levels of TLX, which further increase in hypoxia to enhance the angiogenic capacity of these cells. The proangiogenetic activity of TLX appears to be induced by its direct binding to the von Hippel-Lindau protein (pVHL), which stabilizes TLX. In turn, TLX competes with hydroxylated hypoxia-inducible factor (HIF-α) for binding to pVHL, which contributes to the stabilization of HIF-2α in neuroblastoma during normoxia. Upon hypoxia, TLX increases in the nucleus where it binds in close proximity of the HIF-response element on the VEGF-promoter chromatin, and, together with HIF-2α, recruits RNA polymerase II to induce VEGF expression. Conversely, depletion of TLX by shRNA decreases the expression of HIF-2α and VEGF as well as the growth-promoting and colony-forming capacity of the neuroblastoma cell lines IMR-32 and SH-SY5Y. On the contrary, silencing HIF-2α will slightly increase TLX, suggesting that TLX acts to maintain a hypoxic environment when HIF-2α is decreasing. Our results demonstrate TLX to play a key role in controlling angiogenesis by regulating HIF-2α. TLX and pVHL might counterbalance each other in important fate decisions such as self-renewal and differentiation, as well as angiogenesis and anti-angiogenesis.
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Affiliation(s)
- Zhao-Jun Zeng
- Sahlgrenska Cancer Center, University of Gothenburg , Box 425, SE 405 30 Gothenburg , Sweden ; Molecular Biology Research Center, School of Biological Science and Technology, Central South University , Changsha 410078 , China
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16
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Ishii T, Warabi E, Yanagawa T. Novel roles of peroxiredoxins in inflammation, cancer and innate immunity. J Clin Biochem Nutr 2012; 50:91-105. [PMID: 22448089 PMCID: PMC3303482 DOI: 10.3164/jcbn.11-109] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Accepted: 09/20/2011] [Indexed: 02/06/2023] Open
Abstract
Peroxiredoxins possess thioredoxin or glutathione peroxidase and chaperone-like activities and thereby protect cells from oxidative insults. Recent studies, however, reveal additional functions of peroxiredoxins in gene expression and inflammation-related biological reactions such as tissue repair, parasite infection and tumor progression. Notably, peroxiredoxin 1, the major mammalian peroxiredoxin family protein, directly interacts with transcription factors such as c-Myc and NF-κB in the nucleus. Additionally, peroxiredoxin 1 is secreted from some cells following stimulation with TGF-β and other cytokines and is thus present in plasma and body fluids. Peroxiredoxin 1 is now recognized as one of the pro-inflammatory factors interacting with toll-like receptor 4, which triggers NF-κB activation and other signaling pathways to evoke inflammatory reactions. Some cancer cells release peroxiredoxin 1 to stimulate toll-like receptor 4-mediated signaling for their progression. Interestingly, peroxiredoxins expressed in protozoa and helminth may modulate host immune responses partly through toll-like receptor 4 for their survival and progression in host. Extracellular peroxiredoxin 1 and peroxiredoxin 2 are known to enhance natural killer cell activity and suppress virus-replication in cells. Peroxiredoxin 1-deficient mice show reduced antioxidant activities but also exhibit restrained tissue inflammatory reactions under some patho-physiological conditions. Novel functions of peroxiredoxins in inflammation, cancer and innate immunity are the focus of this review.
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Affiliation(s)
- Tetsuro Ishii
- Majors of Medical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
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17
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Basu A, Banerjee H, Rojas H, Martinez SR, Roy S, Jia Z, Lilly MB, De León M, Casiano CA. Differential expression of peroxiredoxins in prostate cancer: consistent upregulation of PRDX3 and PRDX4. Prostate 2011; 71:755-65. [PMID: 21031435 PMCID: PMC3107902 DOI: 10.1002/pros.21292] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2010] [Accepted: 09/26/2010] [Indexed: 01/31/2023]
Abstract
BACKGROUND The peroxiredoxins (PRDXs) are emerging as regulators of antioxidant defense, apoptosis, and therapy resistance in cancer. Because their significance in prostate cancer (PCa) is unclear, we investigated their expression and clinical associations in PCa. METHODS Transcript expression of PRDX1-6 in PCa was evaluated in cancer gene microarray datasets, whereas protein expression was evaluated by immunoblotting in prostate cell lines, and by immunohistochemistry (IHC) in prostate tissue microarrays (TMAs) containing tumor (n = 80) and control (n = 17) tissues. PRDX3 was also analyzed in TMAs containing PCa tissues from African-American and Caucasian patients (n = 150 per group). PRDX expression was correlated with patients' clinicopathologic characteristics. RESULTS Analysis of PRDX expression in cancer microarray datasets revealed consistent upregulation (tumor vs. normal) of PRDX3 and 4. All PRDXs exhibited elevated protein expression in PCa cell lines, compared with non-tumor cells. IHC revealed significant overexpression of PRDX3 and 4 in PCa, associated with age, increased prostate specific antigen (PSA), tumor stage, or Gleason score. High PRDX3 staining was associated with early age and elevated Gleason score at time of radical prostatectomy in African-American but not in Caucasian patients with PCa. PSA recurrence free survival in patients with low PRDX3 tumor expression was significantly longer in Caucasians compared to African-Americans, but no difference was detected for high expression. CONCLUSIONS PRDXs exhibit differential expression in prostate tumors, with PRDX3 and 4 consistently upregulated. Their role in PCa development, and their potential as biological determinants of PCa health disparities and novel therapeutic targets, deserve further investigation.
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Affiliation(s)
- Anamika Basu
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Hiya Banerjee
- Department of Statistics, University of California, Riverside, California
| | - Heather Rojas
- Jerry L. Pettis Memorial Veterans Affairs Medical Center and Department of Pathology and Anatomy, Loma Linda University School of Medicine, Loma Linda, California
| | - Shannalee R. Martinez
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Sourav Roy
- Genetics, Genomics and Bioinformatics Program, University of California, Riverside, California
| | - Zhenyu Jia
- Chao Family Comprehensive Cancer Center, University of California, Irvine, California
| | - Michael B. Lilly
- Chao Family Comprehensive Cancer Center, University of California, Irvine, California
| | - Marino De León
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Carlos A. Casiano
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
- Department of Medicine, Loma Linda University School of Medicine, Loma Linda, California
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18
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Suh I, Weng J, Fernandez-Ranvier G, Shen WT, Duh QY, Clark OH, Kebebew E. Antineoplastic effects of decitabine, an inhibitor of DNA promoter methylation, in adrenocortical carcinoma cells. ARCHIVES OF SURGERY (CHICAGO, ILL. : 1960) 2010; 145:226-32. [PMID: 20231622 PMCID: PMC3478887 DOI: 10.1001/archsurg.2009.292] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
HYPOTHESES Decitabine recovers expression of silenced genes on chromosome 11q13 and has antineoplastic effects in adrenocortical carcinoma (ACC) cells. DESIGN NCI-H295R cells were treated with decitabine (0.1-1.0 microM) over 5 days. Cells were evaluated at 24-hour intervals for the effects of decitabine on ACC cell proliferation, cortisol secretion, and cell invasion. Expression was quantified for 6 genes on 11q13 (DDB1, MRPL48, NDUFS8, PRDX5, SERPING1, and TM7SF2) that were previously shown to be underexpressed in ACC. SETTING Academic research. Study Specimen Human ACC cell line. MAIN OUTCOME MEASURES Adrenocortical carcinoma cell proliferation, cortisol secretion, and cell invasion were measured using immunometric assays. Quantitative reverse transcription-polymerase chain reaction was used to measure gene expression relative to GAPDH. RESULTS Decitabine inhibited ACC cell proliferation by 39% to 47% at 5 days after treatment compared with control specimens (P < .001). The inhibitory effect was cytostatic, time dependent, and dose dependent. Decitabine decreased cortisol secretion by 56% to 58% at 5 days after treatment (P = .02) and inhibited cell invasion by 64% at 24 hours after treatment (P = .03). Of 6 downregulated genes on 11q13, decitabine recovered expression of NDUFS8 (OMIM 602141) (P < .001) and PRDX5 (OMIM 606583) (P = .006). CONCLUSIONS Decitabine exhibits antitumoral properties in ACC cells at clinically achievable doses and may be an effective adjuvant therapy in patients with advanced disease. Decitabine recovers expression of silenced genes on 11q13, which suggests a possible role of epigenetic gene silencing in adrenocortical carcinogenesis.
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Affiliation(s)
- Insoo Suh
- Department of Surgery and Helen Diller Comprehensive Cancer Center, University of California-San Francisco, CA 94143-1674, USA
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Shiota M, Yokomizo A, Tada Y, Inokuchi J, Tatsugami K, Kuroiwa K, Uchiumi T, Fujimoto N, Seki N, Naito S. Peroxisome proliferator-activated receptor gamma coactivator-1alpha interacts with the androgen receptor (AR) and promotes prostate cancer cell growth by activating the AR. Mol Endocrinol 2009; 24:114-27. [PMID: 19884383 DOI: 10.1210/me.2009-0302] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
There are currently few successful therapies for castration-resistant prostate cancer (CRPC). CRPC is thought to result from augmented activation of the androgen/androgen receptor (AR) signaling pathway, which could be enhanced by AR cofactors. In this study, peroxisome proliferator-activated receptor gamma coactivator-1alpha (PGC-1alpha) was found to be an AR cofactor. PGC-1alpha interacted with the N-terminal domain of AR, was involved in the N- and C-terminal interaction of AR, and enhanced the DNA-binding ability of AR to androgen-responsive elements in the prostate-specific antigen enhancer and promoter regions to increase the transcription of AR target genes. Silencing of PGC-1alpha suppressed cell growth of AR-expressing prostate cancer (PCa) cells by inducing cell-cycle arrest at the G(1) phase, similar to inhibition of androgen/AR signaling. Furthermore, PGC-1alpha knock-down also suppressed cell growth in the castration-resistant LNCaP-derivatives. These findings indicate that PGC-1alpha is involved in the proliferation of AR-expressing PCa cells by acting as an AR coactivator. Modulation of PGC-1alpha expression or function may offer a useful strategy for developing novel therapeutics for PCa, including CRPC, which depends on AR signaling by overexpressing AR and its coactivators.
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Affiliation(s)
- Masaki Shiota
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan
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