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Bou Ghanem EN. CHIPing away at immunity: the role of clonal hematopoiesis of indeterminate potential in bacterial pneumonia. J Clin Invest 2024; 134:e181064. [PMID: 38828722 PMCID: PMC11142730 DOI: 10.1172/jci181064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024] Open
Abstract
The occurrence of clonal hematopoiesis of indeterminate potential (CHIP), in which advantageous somatic mutations result in the clonal expansion of blood cells, increases with age, as do an increased risk of mortality and detrimental outcomes associated with CHIP. However, the role of CHIP in susceptibility to pulmonary infections, which also increase with age, is unclear. In this issue of the JCI, Quin and colleagues explored the role of CHIP in bacterial pneumonia. Using characterization of immune cells from human donors and mice lacking tet methylcytosine dioxygenase 2 (Tet2), the authors mechanistically link myeloid immune cell dysfunction to CHIP-mediated risk of bacterial pneumonia. The findings suggest that CHIP drives inflammaging and immune senescence, and provide Tet2 status in older adults as a potential prognostic tool for informing treatment options related to immune modulation.
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Sequeros CB, Tulstrup M, Bliddal S, Sørensen KM, Nissen I, Rezahosseini O, Brooks PT, Feenstra B, Gang AO, Geller F, Hald A, Harboe ZB, Helleberg M, Jespersen JS, Lebech AM, Lindegaard B, Mogensen TH, Møller MEE, Nielsen CH, Niemann CU, Podlekareva D, Sejdic A, Sørensen E, Teglgaard RS, Tommerup N, Weis N, Brunak S, Pedersen OBV, Banasik K, Feldt-Rasmussen U, Nielsen SD, Ostrowski SR, Grønbæk K. Clonal hematopoiesis and COVID-19 hospitalization in Danish adults. Hemasphere 2024; 8:e58. [PMID: 38463443 PMCID: PMC10924741 DOI: 10.1002/hem3.58] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/08/2024] [Accepted: 02/13/2024] [Indexed: 03/12/2024] Open
Affiliation(s)
- Celia Burgos Sequeros
- Translational Disease Systems Biology, Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark
| | - Morten Tulstrup
- Department of Haematology Copenhagen University Hospital, Rigshospitalet Copenhagen Denmark
- Biotech Research and Innovation Center (BRIC) University of Copenhagen Copenhagen Denmark
| | - Sofie Bliddal
- Department of Endocrinology and Metabolism Copenhagen University Hospital, Rigshospitalet Copenhagen Denmark
| | | | - Ioanna Nissen
- Department of Clinical Immunology, Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
| | - Omid Rezahosseini
- Department of Respiratory Medicine and Infectious Diseases Copenhagen University Hospital, North Zealand Hillerød Denmark
| | - Patrick Terrence Brooks
- Department of Clinical Immunology, Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
| | - Bjarke Feenstra
- Department of Clinical Immunology, Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
- Department of Epidemiology Research Statens Serum Institut Copenhagen Denmark
| | - Anne Ortved Gang
- Department of Haematology Copenhagen University Hospital, Rigshospitalet Copenhagen Denmark
- Department of Clinical Medicine, Faculty of Health and Clinical Sciences University of Copenhagen Copenhagen Denmark
| | - Frank Geller
- Department of Clinical Immunology, Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
- Department of Epidemiology Research Statens Serum Institut Copenhagen Denmark
| | - Annemette Hald
- Department of Infectious Diseases Copenhagen University Hospital, Rigshospitalet Copenhagen Denmark
| | - Zitta Barrella Harboe
- Department of Respiratory Medicine and Infectious Diseases Copenhagen University Hospital, North Zealand Hillerød Denmark
- Department of Clinical Medicine, Faculty of Health and Clinical Sciences University of Copenhagen Copenhagen Denmark
| | - Marie Helleberg
- Department of Infectious Diseases Copenhagen University Hospital, Rigshospitalet Copenhagen Denmark
- Center of Excellence for Health, Immunity and Infections Copenhagen University Hospital, Rigshospitalet Copenhagen Denmark
| | - Jakob S Jespersen
- Biotech Research and Innovation Center (BRIC) University of Copenhagen Copenhagen Denmark
- The Finsen Laboratory Copenhagen University Hospital, Rigshospitalet Copenhagen Denmark
| | - Anne-Mette Lebech
- Department of Clinical Medicine, Faculty of Health and Clinical Sciences University of Copenhagen Copenhagen Denmark
- Department of Infectious Diseases Copenhagen University Hospital, Rigshospitalet Copenhagen Denmark
| | - Birgitte Lindegaard
- Department of Respiratory Medicine and Infectious Diseases Copenhagen University Hospital, North Zealand Hillerød Denmark
- Department of Clinical Medicine, Faculty of Health and Clinical Sciences University of Copenhagen Copenhagen Denmark
| | - Trine H Mogensen
- Department of Infectious Diseases Aarhus University Hospital Aarhus Denmark
- Department of Biomedicine Aarhus University Aarhus Denmark
| | | | - Claus Henrik Nielsen
- Institute for Inflammation Research, Center for Rheumatology and Spine Diseases Copenhagen University Hospital, Rigshospitalet Copenhagen Denmark
| | - Carsten Utoft Niemann
- Department of Haematology Copenhagen University Hospital, Rigshospitalet Copenhagen Denmark
- Department of Clinical Medicine, Faculty of Health and Clinical Sciences University of Copenhagen Copenhagen Denmark
| | - Daria Podlekareva
- Department of Respiratory Medicine and Infectious Diseases Copenhagen University Hospital, Bispebjerg Copenhagen Denmark
| | - Adin Sejdic
- Department of Respiratory Medicine and Infectious Diseases Copenhagen University Hospital, North Zealand Hillerød Denmark
| | - Erik Sørensen
- Department of Clinical Immunology, Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
| | - Rebecca Svanberg Teglgaard
- Department of Haematology Copenhagen University Hospital, Rigshospitalet Copenhagen Denmark
- Department of Clinical Immunology, Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
| | - Niels Tommerup
- Department of Cellular and Molecular Medicine University of Copenhagen Denmark
| | - Nina Weis
- Department of Clinical Medicine, Faculty of Health and Clinical Sciences University of Copenhagen Copenhagen Denmark
- Department of Infectious Diseases Copenhagen University Hospital, Hvidovre Copenhagen Denmark
| | - Søren Brunak
- Translational Disease Systems Biology, Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark
| | - Ole Birger Vestager Pedersen
- Department of Clinical Medicine, Faculty of Health and Clinical Sciences University of Copenhagen Copenhagen Denmark
- Department of Clinical Immunology Zealand University Hospital Køge Denmark
| | - Karina Banasik
- Translational Disease Systems Biology, Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark
- Department of Gynecology and Obstetrics Copenhagen University Hospital, Hvidovre Copenhagen Denmark
| | - Ulla Feldt-Rasmussen
- Department of Endocrinology and Metabolism Copenhagen University Hospital, Rigshospitalet Copenhagen Denmark
- Department of Clinical Medicine, Faculty of Health and Clinical Sciences University of Copenhagen Copenhagen Denmark
| | - Susanne Dam Nielsen
- Department of Clinical Medicine, Faculty of Health and Clinical Sciences University of Copenhagen Copenhagen Denmark
- Department of Infectious Diseases Copenhagen University Hospital, Rigshospitalet Copenhagen Denmark
| | - Sisse Rye Ostrowski
- Department of Clinical Immunology, Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
- Department of Clinical Medicine, Faculty of Health and Clinical Sciences University of Copenhagen Copenhagen Denmark
| | - Kirsten Grønbæk
- Department of Haematology Copenhagen University Hospital, Rigshospitalet Copenhagen Denmark
- Biotech Research and Innovation Center (BRIC) University of Copenhagen Copenhagen Denmark
- Department of Clinical Medicine, Faculty of Health and Clinical Sciences University of Copenhagen Copenhagen Denmark
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Fekete M, Major D, Feher A, Fazekas-Pongor V, Lehoczki A. Geroscience and pathology: a new frontier in understanding age-related diseases. Pathol Oncol Res 2024; 30:1611623. [PMID: 38463143 PMCID: PMC10922957 DOI: 10.3389/pore.2024.1611623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/07/2024] [Indexed: 03/12/2024]
Abstract
Geroscience, a burgeoning discipline at the intersection of aging and disease, aims to unravel the intricate relationship between the aging process and pathogenesis of age-related diseases. This paper explores the pivotal role played by geroscience in reshaping our understanding of pathology, with a particular focus on age-related diseases. These diseases, spanning cardiovascular and cerebrovascular disorders, malignancies, and neurodegenerative conditions, significantly contribute to the morbidity and mortality of older individuals. We delve into the fundamental cellular and molecular mechanisms underpinning aging, including mitochondrial dysfunction and cellular senescence, and elucidate their profound implications for the pathogenesis of various age-related diseases. Emphasis is placed on the importance of assessing key biomarkers of aging and biological age within the realm of pathology. We also scrutinize the interplay between cellular senescence and cancer biology as a central area of focus, underscoring its paramount significance in contemporary pathological research. Moreover, we shed light on the integration of anti-aging interventions that target fundamental aging processes, such as senolytics, mitochondria-targeted treatments, and interventions that influence epigenetic regulation within the domain of pathology research. In conclusion, the integration of geroscience concepts into pathological research heralds a transformative paradigm shift in our understanding of disease pathogenesis and promises breakthroughs in disease prevention and treatment.
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Affiliation(s)
- Monika Fekete
- Department of Public Health, Semmelweis University, Budapest, Hungary
| | - David Major
- Department of Public Health, Semmelweis University, Budapest, Hungary
| | - Agnes Feher
- Department of Public Health, Semmelweis University, Budapest, Hungary
| | | | - Andrea Lehoczki
- Department of Public Health, Semmelweis University, Budapest, Hungary
- Departments of Hematology and Stem Cell Transplantation, South Pest Central Hospital, National Institute of Hematology and Infectious Diseases, Saint Ladislaus Campus, Budapest, Hungary
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4
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Ronchini C, Caprioli C, Tunzi G, D’Amico FF, Colombo E, Giani M, Foti G, Conconi D, Lavitrano M, Passerini R, Pase L, Capizzi S, Mastrilli F, Alcalay M, Orecchia R, Natoli G, Pelicci PG. High-sensitivity analysis of clonal hematopoiesis reveals increased clonal complexity of potential-driver mutations in severe COVID-19 patients. PLoS One 2024; 19:e0282546. [PMID: 38198467 PMCID: PMC10781164 DOI: 10.1371/journal.pone.0282546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 11/27/2023] [Indexed: 01/12/2024] Open
Abstract
Whether Clonal Hematopoiesis (CH) represents a risk factor for severity of the COVID-19 disease remains a controversial issue. We report the first high- sensitivity analysis of CH in COVID-19 patients (threshold of detection at 0.5% vs 1 or 2% in previous studies). We analyzed 24 patients admitted to ICU for COVID-19 (COV-ICU) and 19 controls, including healthy subjects and asymptomatic SARS-CoV2-positive individuals. Despite the significantly higher numbers of CH mutations identified (80% mutations with <2% variant allele frequency, VAF), we did not find significant differences between COV-ICU patients and controls in the prevalence of CH or in the numbers, VAF or functional categories of the mutated genes, suggesting that CH is not overrepresented in patients with COVID-19. However, when considering potential drivers CH mutations (CH-PD), COV-ICU patients showed higher clonal complexity, in terms of both mutation numbers and VAF, and enrichment of variants reported in myeloid neoplasms. However, we did not score an impact of increased CH-PD on patient survival or clinical parameters associated with inflammation. These data suggest that COVID-19 influence the clonal composition of the peripheral blood and call for further investigations addressing the potential long-term clinical impact of CH on people experiencing severe COVID-19. We acknowledge that it will indispensable to perform further studies on larger patient cohorts in order to validate and generalize our conclusions. Moreover, we performed CH analysis at a single time point. It will be necessary to consider longitudinal approaches with long periods of follow-up in order to assess if the COVID-19 disease could have an impact on the evolution of CH and long-term consequences in patients that experienced severe COVID-19.
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Affiliation(s)
- Chiara Ronchini
- Clinical Genomics, European Institute of Oncology IRCCS, Milan, Italy
| | - Chiara Caprioli
- Department of Experimental Oncology, European Institute of Oncology IRCCS, Milan, Italy
| | - Gianleo Tunzi
- Clinical Genomics, European Institute of Oncology IRCCS, Milan, Italy
| | | | - Emanuela Colombo
- Department of Experimental Oncology, European Institute of Oncology IRCCS, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Marco Giani
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Department of Emergency and Intensive Care, Ospedale San Gerardo, Monza, Italy
| | - Giuseppe Foti
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Department of Emergency and Intensive Care, Ospedale San Gerardo, Monza, Italy
| | - Donatella Conconi
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | | | - Rita Passerini
- Division of Laboratory Medicine, European Institute of Oncology IRCCS, Milan, Italy
| | - Luca Pase
- Occupational Medicine, European Institute of Oncology IRCCS, Milan, Italy
| | - Silvio Capizzi
- Medical Administration, CMO, IEO, European Institute of Oncology, IRCCS, Milan, Italy
| | - Fabrizio Mastrilli
- Medical Administration, CMO, IEO, European Institute of Oncology, IRCCS, Milan, Italy
| | - Myriam Alcalay
- Department of Experimental Oncology, European Institute of Oncology IRCCS, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Roberto Orecchia
- Scientific Directorate, European Institute of Oncology IRCCS, Milan, Italy
| | - Gioacchino Natoli
- Department of Experimental Oncology, European Institute of Oncology IRCCS, Milan, Italy
| | - Pier Giuseppe Pelicci
- Department of Experimental Oncology, European Institute of Oncology IRCCS, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
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5
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Rodríguez-Mora S, Pérez-Lamas L, Sainero MS, Torres M, Sánchez-Menéndez C, Corona M, Mateos E, Casado-Fernández G, Alcamí J, García-Pérez J, Pérez-Olmeda M, Murciano-Antón MA, López-Jiménez J, García-Gutiérrez V, Coiras M. Persistent Immunity against SARS-CoV-2 in Individuals with Oncohematological Diseases Who Underwent Autologous or Allogeneic Stem Cell Transplantation after Vaccination. Cancers (Basel) 2023; 15:cancers15082344. [PMID: 37190272 DOI: 10.3390/cancers15082344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/05/2023] [Accepted: 04/11/2023] [Indexed: 05/17/2023] Open
Abstract
The high morbimortality due to SARS-CoV-2 infection in oncohematological diseases (OHD) and hematopoietic stem cell transplant (HSCT) recipients in the pre-vaccine era has made vaccination a priority in this group. After HSCT, the immune responses against common vaccines such as tetanus, varicella, rubella, and polio may be lost. However, the loss of immunity developed by COVID-19 vaccination after HSCT has not been completely defined. In this study, both humoral and cellular immunity against SARS-CoV-2 were analyzed in 29 individuals with OHD who were vaccinated before receiving allogeneic (n = 11) or autologous (n = 18) HSCT. All participants had low but protective levels of neutralizing IgGs against SARS-CoV-2 after HSCT despite B-cell lymphopenia and immaturity. Although antibody-dependent cellular cytotoxicity was impaired, direct cellular cytotoxicity was similar to healthy donors in participants with autologous-HSCT, in contrast to individuals with allogeneic-HSCT, which severely deteriorated. No significant changes were observed in the immune response before and after HSCT. During follow-up, all reported post-HSCT SARS-CoV-2 infections were mild. This data emphasizes that COVID-19 vaccination is effective, necessary, and safe for individuals with OHD and also supports the persistence of some degree of immune protection after HSCT, at least in the short term, when patients cannot yet be revaccinated.
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Affiliation(s)
- Sara Rodríguez-Mora
- Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, 28220 Madrid, Spain
- Biomedical Research Center Network in Infectious Diseases (CIBERINFEC), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Lucía Pérez-Lamas
- Hematology and Hemotherapy Service, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Universitario Ramón y Cajal, 28034 Madrid, Spain
| | - Miriam Solera Sainero
- Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, 28220 Madrid, Spain
| | - Montserrat Torres
- Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, 28220 Madrid, Spain
- Biomedical Research Center Network in Infectious Diseases (CIBERINFEC), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Clara Sánchez-Menéndez
- Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, 28220 Madrid, Spain
- Hematology and Hemotherapy Service, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Universitario Ramón y Cajal, 28034 Madrid, Spain
- Faculty of Sciences, Universidad de Alcalá, 28801 Madrid, Spain
| | - Magdalena Corona
- Hematology and Hemotherapy Service, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Universitario Ramón y Cajal, 28034 Madrid, Spain
- Faculty of Sciences, Universidad de Alcalá, 28801 Madrid, Spain
| | - Elena Mateos
- Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, 28220 Madrid, Spain
- Biomedical Research Center Network in Infectious Diseases (CIBERINFEC), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Guiomar Casado-Fernández
- Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, 28220 Madrid, Spain
- Faculty of Sciences, Universidad de Alcalá, 28801 Madrid, Spain
| | - José Alcamí
- Biomedical Research Center Network in Infectious Diseases (CIBERINFEC), Instituto de Salud Carlos III, 28029 Madrid, Spain
- AIDS Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, 28220 Madrid, Spain
| | - Javier García-Pérez
- Biomedical Research Center Network in Infectious Diseases (CIBERINFEC), Instituto de Salud Carlos III, 28029 Madrid, Spain
- AIDS Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, 28220 Madrid, Spain
| | - Mayte Pérez-Olmeda
- Biomedical Research Center Network in Infectious Diseases (CIBERINFEC), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Serology Service, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | | | - Javier López-Jiménez
- Hematology and Hemotherapy Service, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Universitario Ramón y Cajal, 28034 Madrid, Spain
| | - Valentín García-Gutiérrez
- Hematology and Hemotherapy Service, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Universitario Ramón y Cajal, 28034 Madrid, Spain
| | - Mayte Coiras
- Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, 28220 Madrid, Spain
- Biomedical Research Center Network in Infectious Diseases (CIBERINFEC), Instituto de Salud Carlos III, 28029 Madrid, Spain
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Abstract
OBJECTIVE Interindividual variability in the clinical progression of COVID-19 may be explained by host genetics. Emerging literature supports a potential inherited predisposition to severe forms of COVID-19. Demographic and inflammatory characteristics of COVID-19 suggest that acquired hematologic mutations leading to clonal hematopoiesis (CH) may further increase vulnerability to adverse sequelae. This review summarizes the available literature examining genetic predispositions to severe COVID-19 and describes how these findings could eventually be used to improve its clinical management. DATA SOURCES A PubMed literature search was performed. STUDY SELECTION Studies examining the significance of inherited genetic variation or acquired CH mutations in severe COVID-19 were selected for inclusion. DATA EXTRACTION Relevant genetic association data and aspects of study design were qualitatively assessed and narratively synthesized. DATA SYNTHESIS Genetic variants affecting inflammatory responses may increase susceptibility to severe COVID-19. Genome-wide association studies and candidate gene approaches have identified a list of inherited mutations, which likely alter cytokine and interferon secretion, and lung-specific mechanisms of immunity in COVID-19. The potential role of CH in COVID-19 is more uncertain at present; however, the available evidence suggests that the various types of acquired mutations and their differential influence on immune cell function must be carefully considered. CONCLUSIONS The current literature supports the hypothesis that host genetic factors affect vulnerability to severe COVID-19. Further research is required to confirm the full scope of relevant variants and the causal mechanisms underlying these associations. Clinical approaches, which consider the genetic basis of interindividual variability in COVID-19 and potentially other causes of critical illness, could optimize hospital resource allocation, predict responsiveness to treatment, identify more efficacious drug targets, and ultimately improve outcomes.
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