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Song S, Zhang M, Xie P, Wang S, Wang Y. Comprehensive analysis of cuproptosis-related genes and tumor microenvironment infiltration characterization in breast cancer. Front Immunol 2022; 13:978909. [PMID: 36341328 PMCID: PMC9630583 DOI: 10.3389/fimmu.2022.978909] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 10/06/2022] [Indexed: 11/13/2022] Open
Abstract
Background Cuproptosis is a newly discovered programmed cell death dependent on overload copper-induced mitochondrial respiration dysregulation. The positive response to immunotherapy, one of the most important treatments for invasive breast cancer, depends on the dynamic balance between tumor cells and infiltrating lymphocytes in the tumor microenvironment (TME). However, cuproptosis-related genes (CRGs) in clinical prognosis, immune cell infiltration, and immunotherapy response remain unclear in breast cancer progression. Methods The expression and mutation patterns of 12 cuproptosis-related genes were systematically evaluated in the BRCA training group. Through unsupervised clustering analysis and developing a cuproptosis-related scoring system, we further explored the relationship between cuproptosis and breast cancer progression, prognosis, immune cell infiltration, and immunotherapy. Results We identified two distinct CuproptosisClusters, which were correlated with the different patterns between clinicopathological features, prognosis, and immune cell infiltration. Moreover, the differences of the three cuproptosis-related gene subtypes were evaluated based on the CuproptosisCluster-related DEGs. Then, a cuproptosis-related gene signature (PGK1, SLC52A2, SEC14L2, RAD23B, SLC16A6, CCL5, and MAL2) and the scoring system were constructed to quantify the cuproptosis pattern of BRCA patients in the training cohort, and the testing cohorts validated them. Specifically, patients from the low-CRG_score group were characterized by higher immune cell infiltration, immune checkpoint expression, immune checkpoint inhibitor (ICI) scores, and greater sensitivity to immunotherapy. Finally, we screened out RAD23B as a favorable target and indicated its expression was associated with breast cancer progression, drug resistance, and poor prognosis in BRCA patients by performing real-time RT-PCR, cell viability, and IC50 assay. Conclusions Our results confirmed the essential function of cuproptosis in regulating the progression, prognosis, immune cell infiltration, and response to breast cancer immunotherapy. Quantifying cuproptosis patterns and constructing a CRG_score could help explore the potential molecular mechanisms of cuproptosis regulating BRCA advancement and provide more effective immunotherapy and chemotherapy targets.
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Affiliation(s)
- Shaoran Song
- Center for Translational Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China,The Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Miao Zhang
- Center for Translational Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China,The Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Peiling Xie
- Department of Breast Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Shuhong Wang
- Department of Oncology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China,*Correspondence: Yaochun Wang, ; Shuhong Wang,
| | - Yaochun Wang
- Center for Translational Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China,The Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China,*Correspondence: Yaochun Wang, ; Shuhong Wang,
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Nichols TA, Spraker TR, Gidlewski T, Cummings B, Hill D, Kong Q, Balachandran A, VerCauteren KC, Zabel MD. Dietary magnesium and copper affect survival time and neuroinflammation in chronic wasting disease. Prion 2017; 10:228-50. [PMID: 27216881 PMCID: PMC4981212 DOI: 10.1080/19336896.2016.1181249] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Chronic wasting disease (CWD), the only known wildlife prion disease, affects deer, elk and moose. The disease is an ongoing and expanding problem in both wild and captive North American cervid populations and is difficult to control in part due to the extreme environmental persistence of prions, which can transmit disease years after initial contamination. The role of exogenous factors in CWD transmission and progression is largely unexplored. In an effort to understand the influence of environmental and dietary constituents on CWD, we collected and analyzed water and soil samples from CWD-negative and positive captive cervid facilities, as well as from wild CWD-endozootic areas. Our analysis revealed that, when compared with CWD-positive sites, CWD-negative sites had a significantly higher concentration of magnesium, and a higher magnesium/copper (Mg/Cu) ratio in the water than that from CWD-positive sites. When cevidized transgenic mice were fed a custom diet devoid of Mg and Cu and drinking water with varied Mg/Cu ratios, we found that higher Mg/Cu ratio resulted in significantly longer survival times after intracerebral CWD inoculation. We also detected reduced levels of inflammatory cytokine gene expression in mice fed a modified diet with a higher Mg/Cu ratio compared to those on a standard rodent diet. These findings indicate a role for dietary Mg and Cu in CWD pathogenesis through modulating inflammation in the brain.
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Affiliation(s)
- Tracy A Nichols
- a National Wildlife Research Center, US Department of Agriculture , Animal and Plant Health Inspection Service, Wildlife Services , Fort Collins , CO , USA
| | - Terry R Spraker
- b Colorado State University Diagnostic Laboratory, College of Veterinary Medicine, Colorado State University , Fort Collins , CO , USA;,c Department of Microbiology , Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University Prion Research Center , Fort Collins , CO , USA
| | - Thomas Gidlewski
- a National Wildlife Research Center, US Department of Agriculture , Animal and Plant Health Inspection Service, Wildlife Services , Fort Collins , CO , USA
| | - Bruce Cummings
- b Colorado State University Diagnostic Laboratory, College of Veterinary Medicine, Colorado State University , Fort Collins , CO , USA
| | - Dana Hill
- c Department of Microbiology , Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University Prion Research Center , Fort Collins , CO , USA
| | - Qingzhong Kong
- d Departments of Pathology and Neurology & National Center for Regenerative Medicine , Case Western Reserve University , Cleveland , OH , USA
| | - Aru Balachandran
- e National and OIE Reference Laboratory for Scrapie and CWD, Canadian Food Inspection Agency , Ottawa , Ontario , Canada
| | - Kurt C VerCauteren
- a National Wildlife Research Center, US Department of Agriculture , Animal and Plant Health Inspection Service, Wildlife Services , Fort Collins , CO , USA
| | - Mark D Zabel
- c Department of Microbiology , Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University Prion Research Center , Fort Collins , CO , USA
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Spincemaille P, Chandhok G, Zibert A, Schmidt H, Verbeek J, Chaltin P, Cammue BP, Cassiman D, Thevissen K. Angiotensin II type 1 receptor blockers increase tolerance of cells to copper and cisplatin. MICROBIAL CELL 2014; 1:352-364. [PMID: 28357214 PMCID: PMC5349125 DOI: 10.15698/mic2014.11.175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The human pathology Wilson disease (WD) is characterized by toxic copper (Cu)
accumulation in brain and liver, resulting in, among other indications,
mitochondrial dysfunction and apoptosis of hepatocytes. In an effort to identify
novel compounds that can alleviate Cu-induced toxicity, we screened the
Pharmakon 1600 repositioning library using a Cu-toxicity yeast screen. We
identified 2 members of the drug class of Angiotensin II Type 1 receptor
blockers (ARBs) that could increase yeast tolerance to Cu, namely Candesartan
and Losartan. Subsequently, we show that specific ARBs can increase yeast
tolerance to Cu and/or the chemotherapeutic agent cisplatin (Cp). The latter
also induces mitochondrial dysfunction and apoptosis in mammalian cells. We
further demonstrate that specific ARBs can prevent the prevalence of Cu-induced
apoptotic markers in yeast, with Candesartan Cilexetil being the ARB which
demonstrated most pronounced reduction of apoptosis-related markers. Next, we
tested the sensitivity of a selection of yeast knockout mutants affected in
detoxification of reactive oxygen species (ROS) and Cu for Candesartan Cilexetil
rescue in presence of Cu. These data indicate that Candesartan Cilexetil
increases yeast tolerance to Cu irrespectively of major ROS-detoxifying
proteins. Finally, we show that specific ARBs can increase mammalian cell
tolerance to Cu, as well as decrease the prevalence of Cu-induced apoptotic
markers. All the above point to the potential of ARBs in preventing Cu-induced
toxicity in yeast and mammalian cells.
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Affiliation(s)
- Pieter Spincemaille
- Centre of Microbial and Plant Genetics (CMPG), KU Leuven, Kasteelpark Arenberg 20, 3001 Heverlee, Belgium
| | - Gursimran Chandhok
- Clinic for Transplantation Medicine, Münster University Hospital, Albert-Schweitzer-Campus 1, Building A14, D-48149 Münster, Germany
| | - Andree Zibert
- Clinic for Transplantation Medicine, Münster University Hospital, Albert-Schweitzer-Campus 1, Building A14, D-48149 Münster, Germany
| | - Hartmut Schmidt
- Clinic for Transplantation Medicine, Münster University Hospital, Albert-Schweitzer-Campus 1, Building A14, D-48149 Münster, Germany
| | - Jef Verbeek
- Department of Hepatology and Metabolic Center, University Hospital Gasthuisberg, Herestraat 49, 3000 Leuven, Belgium
| | - Patrick Chaltin
- CISTIM Leuven vzw, Bio-Incubator 2, Wetenschapspark Arenberg, Gaston Geenslaan 2, 3001 Heverlee, Belgium. ; Centre for Drug Design and Discovery (CD3), KU Leuven R&D, Waaistraat 6, Box 5105, 3000 Leuven
| | - Bruno P Cammue
- Centre of Microbial and Plant Genetics (CMPG), KU Leuven, Kasteelpark Arenberg 20, 3001 Heverlee, Belgium. ; Department of Plant Systems Biology, VIB, Technologiepark 927, 9052, Ghent, Belgium
| | - David Cassiman
- Department of Hepatology and Metabolic Center, University Hospital Gasthuisberg, Herestraat 49, 3000 Leuven, Belgium
| | - Karin Thevissen
- Centre of Microbial and Plant Genetics (CMPG), KU Leuven, Kasteelpark Arenberg 20, 3001 Heverlee, Belgium
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Johnson CJ, Gilbert P, Abrecht M, Baldwin KL, Russell RE, Pedersen JA, Aiken JM, McKenzie D. Low copper and high manganese levels in prion protein plaques. Viruses 2013; 5:654-62. [PMID: 23435237 PMCID: PMC3640519 DOI: 10.3390/v5020654] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Revised: 01/25/2013] [Accepted: 02/07/2013] [Indexed: 01/29/2023] Open
Abstract
Accumulation of aggregates rich in an abnormally folded form of the prion protein characterize the neurodegeneration caused by transmissible spongiform encephalopathies (TSEs). The molecular triggers of plaque formation and neurodegeneration remain unknown, but analyses of TSE-infected brain homogenates and preparations enriched for abnormal prion protein suggest that reduced levels of copper and increased levels of manganese are associated with disease. The objectives of this study were to: (1) assess copper and manganese levels in healthy and TSE-infected Syrian hamster brain homogenates; (2) determine if the distribution of these metals can be mapped in TSE-infected brain tissue using X-ray photoelectron emission microscopy (X-PEEM) with synchrotron radiation; and (3) use X-PEEM to assess the relative amounts of copper and manganese in prion plaques in situ. In agreement with studies of other TSEs and species, we found reduced brain levels of copper and increased levels of manganese associated with disease in our hamster model. We also found that the in situ levels of these metals in brainstem were sufficient to image by X-PEEM. Using immunolabeled prion plaques in directly adjacent tissue sections to identify regions to image by X-PEEM, we found a statistically significant relationship of copper-manganese dysregulation in prion plaques: copper was depleted whereas manganese was enriched. These data provide evidence for prion plaques altering local transition metal distribution in the TSE-infected central nervous system.
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Affiliation(s)
- Christopher J. Johnson
- USGS National Wildlife Health Center, 6006 Schroeder Road, Madison, WI 53711, USA; E-Mails: (C.J.J.); (R.E.R)
| | - P.U.P.A. Gilbert
- Department of Physics, University of Wisconsin-Madison, 1150 University Avenue, Madison, WI 53706, USA; E-Mails: (P.U.P.A.G.); (M.A.)
| | - Mike Abrecht
- Department of Physics, University of Wisconsin-Madison, 1150 University Avenue, Madison, WI 53706, USA; E-Mails: (P.U.P.A.G.); (M.A.)
| | - Katherine L. Baldwin
- Program in Cellular & Molecular Biology, University of Wisconsin-Madison, 425-G Henry Mall Madison, WI 53706, USA; E-Mail: (K.L.B.)
| | - Robin E. Russell
- USGS National Wildlife Health Center, 6006 Schroeder Road, Madison, WI 53711, USA; E-Mails: (C.J.J.); (R.E.R)
| | - Joel A. Pedersen
- Program in Cellular & Molecular Biology, University of Wisconsin-Madison, 425-G Henry Mall Madison, WI 53706, USA; E-Mail: (K.L.B.)
- Department of Soil Science, University of Wisconsin-Madison, 1525 Observatory Dr., Madison, WI 53706, USA; E-Mail: (J.A.P.)
| | - Judd M. Aiken
- Centre for Prions and Protein Folding Diseases, AFNS, University of Alberta, Edmonton, Alberta, T6G 2M8, Canada; E-Mail: (J.M.A.)
| | - Debbie McKenzie
- Centre for Prions and Protein Folding Diseases, Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2M8, Canada; E-Mail: (D.M.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +1 780 492-9377; Fax: +1 780 492-9352
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Hedman C, Lyahyai J, Filali H, Marín B, Serrano C, Monleón E, Moreno B, Zaragoza P, Badiola JJ, Martín-Burriel I, Bolea R. Differential gene expression and apoptosis markers in presymptomatic scrapie affected sheep. Vet Microbiol 2012; 159:23-32. [PMID: 22482719 DOI: 10.1016/j.vetmic.2012.03.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Revised: 03/01/2012] [Accepted: 03/09/2012] [Indexed: 10/28/2022]
Abstract
Neuronal loss is one of the characteristics of scrapie neuropathology. Previous analysis of brains from sheep naturally infected with scrapie that were in a terminal stage did not detect a clear induction of apoptosis, although molecular changes were evidenced. As neuronal death could be occurring early in scrapie, we developed a neuropathological and gene expression study of sheep infected with scrapie in a presymptomatic stage. The histopathology, immunolabelling of PrP(Sc), Bax and activated caspase-3, and the analysis of the expression of 7 genes involved in the regulation of the mitochondrial pathway of apoptosis were investigated in the following 4 central nervous system areas: medulla oblongata, diencephalon, frontal cortex and cerebellum. Moreover, TUNEL and NeuN immunolabelling was performed in the medulla oblongata. The PrP(Sc) immunolabelling in the four areas, as well as a neuropil spongiform change, were more evident in the terminal stage than in presymptomatic animals. Cytoplasmic Bax immunostaining was observed in the presymptomatic medulla oblongata. In contrast to symptomatic animals, the immunostaining was not extended to the hypothalamus, indicating the progression of Bax induction during the course of the disease. Although neither caspase-3 immunostaining nor the TUNEL technique detected neurons with apoptosis, NeuN-immunolabelled cell counting determined that presymptomatic animals have already suffered neuronal loss in a lower or equal degree than symptomatic animals. Finally, the gene expression profiles indicated that the mitochondrial pathway of apoptosis was activated with higher intensity in presymptomatic animals than in symptomatic sheep and confirmed the implication of genes such as BAX or AIF in the disease.
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Affiliation(s)
- Carlos Hedman
- Centro de Investigación en Encefalopatías y Enfermedades Transmisibles Emergentes (CIEETE), Facultad de Veterinaria, Universidad de Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain
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Gene expression profiling and association with prion-related lesions in the medulla oblongata of symptomatic natural scrapie animals. PLoS One 2011; 6:e19909. [PMID: 21629698 PMCID: PMC3101219 DOI: 10.1371/journal.pone.0019909] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Accepted: 04/06/2011] [Indexed: 02/04/2023] Open
Abstract
The pathogenesis of natural scrapie and other prion diseases remains unclear. Examining transcriptome variations in infected versus control animals may highlight new genes potentially involved in some of the molecular mechanisms of prion-induced pathology. The aim of this work was to identify disease-associated alterations in the gene expression profiles of the caudal medulla oblongata (MO) in sheep presenting the symptomatic phase of natural scrapie. The gene expression patterns in the MO from 7 sheep that had been naturally infected with scrapie were compared with 6 controls using a Central Veterinary Institute (CVI) custom designed 4×44K microarray. The microarray consisted of a probe set on the previously sequenced ovine tissue library by CVI and was supplemented with all of the Ovis aries transcripts that are currently publicly available. Over 350 probe sets displayed greater than 2-fold changes in expression. We identified 148 genes from these probes, many of which encode proteins that are involved in the immune response, ion transport, cell adhesion, and transcription. Our results confirm previously published gene expression changes that were observed in murine models with induced scrapie. Moreover, we have identified new genes that exhibit differential expression in scrapie and could be involved in prion neuropathology. Finally, we have investigated the relationship between gene expression profiles and the appearance of the main scrapie-related lesions, including prion protein deposition, gliosis and spongiosis. In this context, the potential impacts of these gene expression changes in the MO on scrapie development are discussed.
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