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Contreras-Valero JF, Ruíz-Ordóñez I, Pinilla-Monsalve GD, Bautista-Vargas M, Ocampo-Piraquive V, Aguirre-Valencia D. Cytomegalovirus infection and disease in systemic lupus erythematosus patients at a high-complexity hospital in southwestern Colombia. Lupus 2024; 33:797-803. [PMID: 38709545 DOI: 10.1177/09612033241247103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
Cytomegalovirus (CMV) infection and disease is a condition usually described in immunocompromised patients, but among them, those with connective tissue diseases are poorly represented. Here we present the clinical, laboratory characteristics, management and outcomes of systemic lupus erythematosus (SLE) patients who presented with a CMV infection/disease to a high complexity hospital in southwestern Colombia between 2011 and 2020. 16 SLE patients were found to have a CMV infection. SLE was predominantly characterized by renal involvement (10 patients; 62.50%), and 14 patients (87.5%) were receiving steroids previous to the CMV infection. The entire sample required hospital admission, mainly related to acute kidney injury, and nine patients were admitted to the intensive care unit (ICU). Gastrointestinal organ damage was the most common CMV disease manifestation. All patients received ganciclovir, five of them (31.25%) suffered from septic shock, and seven (43.75%) died. Age ≥38 years and the presence of septic shock at admission were correlated to the mortality outcome. To our knowledge, this is the first publication evaluating SLE patients with CMV infection/disease in a Colombian population.
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Affiliation(s)
- Juan Fernando Contreras-Valero
- Division of Infectious Diseases, Department of Internal Medicine, Faculty of Medicine, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Ingrid Ruíz-Ordóñez
- GIRAT: Grupo de Investigación en Reumatología, Inmunología y Medicina Traslacional, School of Medicine, Fundación Valle del Lili, Universidad Icesi, Cali, Colombia
- Facultad de Ciencias de la Salud, Universidad de Caldas, Manizales, Colombia
| | | | - Mario Bautista-Vargas
- Unidad de Reumatología, Facultad de Ciencias de la Salud, Universidad Icesi, Cali, Colombia
| | - Vanessa Ocampo-Piraquive
- GIRAT: Grupo de Investigación en Reumatología, Inmunología y Medicina Traslacional, School of Medicine, Fundación Valle del Lili, Universidad Icesi, Cali, Colombia
- Unidad de Reumatología, Facultad de Ciencias de la Salud, Universidad Icesi, Cali, Colombia
| | - David Aguirre-Valencia
- GIRAT: Grupo de Investigación en Reumatología, Inmunología y Medicina Traslacional, School of Medicine, Fundación Valle del Lili, Universidad Icesi, Cali, Colombia
- Unidad de Reumatología, Facultad de Ciencias de la Salud, Universidad Icesi, Cali, Colombia
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Yan T, Pang X, Liang B, Meng Q, Wei H, Li W, Liu D, Hu Y. Comprehensive bioinformatics analysis of human cytomegalovirus pathway genes in pan-cancer. Hum Genomics 2024; 18:65. [PMID: 38886862 PMCID: PMC11181644 DOI: 10.1186/s40246-024-00633-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 06/05/2024] [Indexed: 06/20/2024] Open
Abstract
BACKGROUND Human cytomegalovirus (HCMV) is a herpesvirus that can infect various cell types and modulate host gene expression and immune response. It has been associated with the pathogenesis of various cancers, but its molecular mechanisms remain elusive. METHODS We comprehensively analyzed the expression of HCMV pathway genes across 26 cancer types using the Cancer Genome Atlas (TCGA) and The Genotype-Tissue Expression (GTEx) databases. We also used bioinformatics tools to study immune invasion and tumor microenvironment in pan-cancer. Cox regression and machine learning were used to analyze prognostic genes and their relationship with drug sensitivity. RESULTS We found that HCMV pathway genes are widely expressed in various cancers. Immune infiltration and the tumor microenvironment revealed that HCMV is involved in complex immune processes. We obtained prognostic genes for 25 cancers and significantly found 23 key genes in the HCMV pathway, which are significantly enriched in cellular chemotaxis and synaptic function and may be involved in disease progression. Notably, CaM family genes were up-regulated and AC family genes were down-regulated in most tumors. These hub genes correlate with sensitivity or resistance to various drugs, suggesting their potential as therapeutic targets. CONCLUSIONS Our study has revealed the role of the HCMV pathway in various cancers and provided insights into its molecular mechanism and therapeutic significance. It is worth noting that the key genes of the HCMV pathway may open up new doors for cancer prevention and treatment.
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Affiliation(s)
- Tengyue Yan
- Collaborative Innovation Centre of Regenerative Medicine and Medical Bioresource Development and Application Co-constructed by the Province and Ministry, Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Xianwu Pang
- Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning, 530028, China
| | - Boying Liang
- Department of Immunology, School of Basic Medical Sciences, Guangxi Medical University, Nanning, China
| | - Qiuxia Meng
- School of Information and Managent, Guangxi Medical University, Nanning, China
| | - Huilin Wei
- School of Institute of Life Sciences, Guangxi Medical University, Nanning, China
| | - Wen Li
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Guangxi Medical University, Nanning, China
| | - Dahai Liu
- School of Medicine, Foshan University, Foshan, Guangdong, 528000, People's Republic of China.
| | - Yanling Hu
- Collaborative Innovation Centre of Regenerative Medicine and Medical Bioresource Development and Application Co-constructed by the Province and Ministry, Guangxi Medical University, Nanning, Guangxi, 530021, China.
- School of Institute of Life Sciences, Guangxi Medical University, Nanning, China.
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Sayeed K, Parameswaran S, Beucler MJ, Edsall LE, VonHandorf A, Crowther A, Donmez O, Hass M, Richards S, Forney C, Wright J, Leong MML, Murray-Nerger LA, Gewurz BE, Kaufman KM, Harley JB, Zhao B, Miller WE, Kottyan LC, Weirauch MT. Human cytomegalovirus infection coopts chromatin organization to diminish TEAD1 transcription factor activity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.12.588762. [PMID: 38645179 PMCID: PMC11030363 DOI: 10.1101/2024.04.12.588762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Human cytomegalovirus (HCMV) infects up to 80% of the world's population. Here, we show that HCMV infection leads to widespread changes in human chromatin accessibility and chromatin looping, with hundreds of thousands of genomic regions affected 48 hours after infection. Integrative analyses reveal HCMV-induced perturbation of Hippo signaling through drastic reduction of TEAD1 transcription factor activity. We confirm extensive concordant loss of TEAD1 binding, active H3K27ac histone marks, and chromatin looping interactions upon infection. Our data position TEAD1 at the top of a hierarchy involving multiple altered important developmental pathways. HCMV infection reduces TEAD1 activity through four distinct mechanisms: closing of TEAD1-bound chromatin, reduction of YAP1 and phosphorylated YAP1 levels, reduction of TEAD1 transcript and protein levels, and alteration of TEAD1 exon-6 usage. Altered TEAD1-based mechanisms are highly enriched at genetic risk loci associated with eye and ear development, providing mechanistic insight into HCMV's established roles in these processes.
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Affiliation(s)
- Khund Sayeed
- Center for Autoimmune Genomics and Etiology, Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Sreeja Parameswaran
- Center for Autoimmune Genomics and Etiology, Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Matthew J. Beucler
- Department of Molecular Genetics, Biochemistry & Microbiology, University of Cincinnati, Cincinnati, OH, 45229, USA
| | - Lee E. Edsall
- Center for Autoimmune Genomics and Etiology, Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Andrew VonHandorf
- Center for Autoimmune Genomics and Etiology, Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Audrey Crowther
- Center for Autoimmune Genomics and Etiology, Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
- Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH, 45229, USA
| | - Omer Donmez
- Center for Autoimmune Genomics and Etiology, Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Matthew Hass
- Center for Autoimmune Genomics and Etiology, Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Scott Richards
- Center for Autoimmune Genomics and Etiology, Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Carmy Forney
- Center for Autoimmune Genomics and Etiology, Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Jay Wright
- Department of Molecular Genetics, Biochemistry & Microbiology, University of Cincinnati, Cincinnati, OH, 45229, USA
| | - Merrin Man Long Leong
- Department of Medicine, Division of Infectious Diseases, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Laura A. Murray-Nerger
- Department of Medicine, Division of Infectious Diseases, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Department of Microbiology, Harvard Program in Virology, Harvard Medical School, Boston, MA, 02115, USA
- Center for Integrated Solutions to Infectious Diseases, Broad Institute of Harvard and MIT, Cambridge, MA, 02142, USA
| | - Ben E. Gewurz
- Department of Medicine, Division of Infectious Diseases, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Kenneth M. Kaufman
- Center for Autoimmune Genomics and Etiology, Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45229, USA
- Research Service, Cincinnati VA Medical Center, Cincinnati, OH 45229, USA
| | - John B. Harley
- Research Service, Cincinnati VA Medical Center, Cincinnati, OH 45229, USA
| | - Bo Zhao
- Department of Medicine, Division of Infectious Diseases, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - William E. Miller
- Department of Molecular Genetics, Biochemistry & Microbiology, University of Cincinnati, Cincinnati, OH, 45229, USA
| | - Leah C. Kottyan
- Center for Autoimmune Genomics and Etiology, Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45229, USA
- Division of Allergy and Immunology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Matthew T. Weirauch
- Center for Autoimmune Genomics and Etiology, Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45229, USA
- Division of Allergy and Immunology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
- Division of Biomedical Informatics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
- Division of Developmental Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, USA
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Monday LM, Keri V, Chandrasekar PH. Advances in pharmacotherapies for cytomegalovirus infection: what is the current state of play? Expert Opin Pharmacother 2024; 25:685-694. [PMID: 38717943 DOI: 10.1080/14656566.2024.2353627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 05/07/2024] [Indexed: 06/12/2024]
Abstract
INTRODUCTION Cytomegalovirus (CMV) remains a serious opportunistic infection in hematopoietic cell transplant (HCT) and solid-organ transplant (SOT) recipients. Traditional anti-CMV drugs are limited by toxicities and the development of resistance. Letermovir and maribavir are newly approved antivirals for the prevention and treatment of CMV. AREAS COVERED Prior reviews have discussed use of letermovir for prevention of CMV after HCT and maribavir for resistant or refractory (R/R) CMV post HCT or SOT. Subsequent data have expanded their use including letermovir for primary CMV prophylaxis in high-risk renal transplant recipients and new recommendations for extending prophylaxis through day + 200 in certain HCT patients. Data on the use of maribavir for first asymptomatic CMV infection post-HCT has also been published. This review compares the pharmacology of anti-CMV agents and discusses the updated literature of these new drugs in the prevention and treatment of CMV. EXPERT OPINION Letermovir and maribavir are much needed tools that spare toxicities of ganciclovir, foscarnet, and cidofovir. High cost is a challenge preventing their integration into clinical practice in resource-limited countries. Transplant centers need to exercise restraint in overuse to avoid resistance, particularly in the setting of high viral loads.
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Affiliation(s)
- Lea M Monday
- Division of Infectious Diseases, Department of Medicine, Wayne State University, Detroit, MI, USA
| | - Vishakh Keri
- Division of Infectious Diseases, Department of Medicine, Wayne State University, Detroit, MI, USA
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Perera DJ, Koger-Pease C, Paulini K, Daoudi M, Ndao M. Beyond schistosomiasis: unraveling co-infections and altered immunity. Clin Microbiol Rev 2024; 37:e0009823. [PMID: 38319102 PMCID: PMC10938899 DOI: 10.1128/cmr.00098-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024] Open
Abstract
Schistosomiasis is a neglected tropical disease caused by the helminth Schistosoma spp. and has the second highest global impact of all parasites. Schistosoma are transmitted through contact with contaminated fresh water predominantly in Africa, Asia, the Middle East, and South America. Due to the widespread prevalence of Schistosoma, co-infection with other infectious agents is common but often poorly described. Herein, we review recent literature describing the impact of Schistosoma co-infection between species and Schistosoma co-infection with blood-borne protozoa, soil-transmitted helminths, various intestinal protozoa, Mycobacterium, Salmonella, various urinary tract infection-causing agents, and viral pathogens. In each case, disease severity and, of particular interest, the immune landscape, are altered as a consequence of co-infection. Understanding the impact of schistosomiasis co-infections will be important when considering treatment strategies and vaccine development moving forward.
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Affiliation(s)
- Dilhan J. Perera
- Division of Experimental Medicine, McGill University, Montreal, Canada
- Infectious Diseases and Immunity in Global Health Program, Research Institute of the McGill University Health Centre, Montreal, Canada
| | - Cal Koger-Pease
- Division of Experimental Medicine, McGill University, Montreal, Canada
- Infectious Diseases and Immunity in Global Health Program, Research Institute of the McGill University Health Centre, Montreal, Canada
| | - Kayla Paulini
- Department of Microbiology and Immunology, McGill University, Montreal, Canada
| | - Mohamed Daoudi
- Infectious Diseases and Immunity in Global Health Program, Research Institute of the McGill University Health Centre, Montreal, Canada
- Department of Microbiology and Immunology, McGill University, Montreal, Canada
| | - Momar Ndao
- Division of Experimental Medicine, McGill University, Montreal, Canada
- Infectious Diseases and Immunity in Global Health Program, Research Institute of the McGill University Health Centre, Montreal, Canada
- Department of Microbiology and Immunology, McGill University, Montreal, Canada
- National Reference Centre for Parasitology, Research Institute of the McGill University Health Centre, Montreal, Canada
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6
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Zhang XJ, Zhang JX, Qu Y, Peng RM, Zhang P, Hong J. Cytokine analysis of aqueous humor in patients with cytomegalovirus corneal endotheliitis. Graefes Arch Clin Exp Ophthalmol 2024:10.1007/s00417-024-06417-w. [PMID: 38446197 DOI: 10.1007/s00417-024-06417-w] [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: 08/30/2023] [Revised: 01/25/2024] [Accepted: 02/11/2024] [Indexed: 03/07/2024] Open
Abstract
PURPOSE To evaluate cytokine levels of aqueous humor in patients with cytomegalovirus (CMV) corneal endotheliitis and their relationships with CMV DNA load. METHODS 44 aqueous humor samples were obtained from 26 patients with CMV corneal endotheliitis at various stages of treatment. 33 samples obtained from cataract patients during the same period were selected as a control group. Each sample was used to measure the concentration of the CMV DNA load using real-time quantitative polymerase chain reaction, and to examine the levels of IL-6, IL-8, IL-10, MCP-1, VCAM-1, VEGF, IP-10, G-CSF, ICAM-1 and IFN-γ using a cytometric bead array. RESULTS All 10 cytokines were found to have statistically significant differences between the CMV endotheliitis and cataract groups. The Spearman correlation test showed that the concentration of CMV DNA load was significantly associated with the levels of IL-6 (P = 0.005, r = 0.417), IL-8 (P < 0.001, r = 0.514), IL-10 (P < 0.001, r = 0.700), MCP-1 (P = 0.001, r = 0.487), VEGF (P < 0.001, r = 0.690), IP-10 (P = 0.001, r = 0.469), G-CSF (P < 0.001, r = 0.554) and ICAM-1 (P < 0.001, r = 0.635), but not significantly associated with VCAM-1 (P = 0.056) and IFN-γ (P = 0.219). CONCLUSIONS There was a combined innate and adaptive immune response in aqueous humor in patients with CMV endotheliitis. Levels of multiple cytokines were significantly correlated with viral particle. Cytokines are potential indicators to help diagnose CMV endotheliitis, evaluate disease activity and assess treatment response.
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Affiliation(s)
- Xuan-Jun Zhang
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, China
| | - Jia-Xin Zhang
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, China
| | - Yi Qu
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, China
| | - Rong-Mei Peng
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, China
| | - Pei Zhang
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, China
| | - Jing Hong
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China.
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, China.
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Egorov AI, Griffin SM, Styles JN, Kobylanski J, Klein J, Wickersham L, Ritter R, Sams E, Hudgens EE, Wade TJ. Time outdoors and residential greenness are associated with reduced systemic inflammation and allostatic load. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 344:123408. [PMID: 38278402 DOI: 10.1016/j.envpol.2024.123408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 01/09/2024] [Accepted: 01/18/2024] [Indexed: 01/28/2024]
Abstract
Contacts with nature are linked with reduced morbidity and mortality. Hypothesized pathways include relaxation, physical activity, and improved immune function. This cross-sectional study of 320 adults in central North Carolina assessed health benefits of residential greenness using allostatic load (AL) and systemic inflammation (INFL) indices, composite biomarker-based measures of physiological dysregulation and inflammation, respectively. Distance-to-residence weighted tree cover and vegetated land cover measures were estimated within 500 m of each residence; 37 biomarkers of immune, neuroendocrine, cardiovascular, and metabolic functions were dichotomized at distribution or health-based cut-offs. AL was calculated as a sum of potentially unhealthy values of all biomarkers; INFL was based on a subset of 18 immune biomarkers. Regression analysis used generalized additive models for Poisson-distributed outcome. An interquartile range (IQR) increase in tree cover was associated with 0.89 (95 % Confidence Limits 0.82; 0.97) and 0.90 (0.79; 1.03)-fold change in AL and INFL, respectively. Greater daily outdoor time was associated with reduced AL and INFL, while leisure screen time, problems with sleeping, and common chronic infections were linked with increased AL and INFL. Among 138 individuals spending more than 1 h outdoors daily, an IQR increase in tree cover was associated with 0.76 (0.67; 0.86) and 0.81 (0.65; 1.02)-fold changes in AL and INFL, respectively. Among individuals with residential tree cover above the 50th percentile, spending more than 3 h outdoors daily was associated with 0.54 (0.37; 0.78) and 0.28 (0.15; 0.54)-fold changes in AL and INFL, respectively, compared to spending less than 30 min outdoors; there were no significant effects in the low tree cover stratum. Consistent but weaker effects were observed for vegetated land cover. Interaction effects of tree and vegetative cover and time spent outdoors on AL and INFL were statistically significant. This biomarker-based approach can help to assess public health benefits of green spaces.
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Affiliation(s)
- Andrey I Egorov
- Office of Research and Development, United States Environmental Protection Agency, Research Triangle Park, NC, USA.
| | - Shannon M Griffin
- Office of Research and Development, United States Environmental Protection Agency, Cincinnati, OH, USA
| | - Jennifer N Styles
- Office of Research and Development, United States Environmental Protection Agency, Research Triangle Park, NC, USA; Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Jason Kobylanski
- ORAU Student Services Contractor, United States Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Jo Klein
- ORAU Student Services Contractor, United States Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Lindsay Wickersham
- ORAU Student Services Contractor, United States Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Rebecca Ritter
- ORAU Student Services Contractor, United States Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Elizabeth Sams
- Office of Research and Development, United States Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Edward E Hudgens
- Office of Research and Development, United States Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Timothy J Wade
- Office of Research and Development, United States Environmental Protection Agency, Research Triangle Park, NC, USA
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Abu Dail Y, Daas L, Flockerzi E, Munteanu C, Kahlert J, Smola S, Seitz B. PCR testing for herpesviruses in aqueous humor samples from patients with and without clinical corneal endothelial graft rejection. J Med Virol 2024; 96:e29538. [PMID: 38506230 DOI: 10.1002/jmv.29538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 02/11/2024] [Accepted: 03/06/2024] [Indexed: 03/21/2024]
Abstract
To compare prevalence of positive PCR tests for herpesviruses between patients with and without a history of clinical corneal endothelial allograft rejection (AGR). Retrospective cross-sectional study with two-group comparison. A total of 307 aqueous humor (AH) samples from 235 Patients and 244 eyes who underwent penetrating keratoplasty or Descemet membrane endothelial keratoplasty or had a diagnostic AH aspiration due to clinical AGR between 2019 and 2023 were tested for DNA of herpes simplex virus (HSV), varicella-zoster virus (VZV), cytomegalovirus (CMV), and Epstein-Barr virus (EBV). PCR test results were compared between the two groups (with/without AGR). Another sub-analysis examined the results of patients without a history of herpetic keratitis. A total of 8% of eyes with clinical AGR (9/108) had a positive PCR result for one of the herpesviruses (HSV:3, CMV:3, EBV:2, VZV:1). All patients in the group without AGR had negative PCR results for all previous viruses (0/136). The difference was statistically significant (p < 0.001). The sub-analysis of eyes without a history of herpetic keratitis also revealed significantly more positive herpes PCR results (7/87) in eyes with AGR than in eyes without AGR (0/42, p = 0.005). Clinical AGR after keratoplasty shows a significant correlation to viral replication. Herpetic infection and AGR could occur simultaneously and act synergistically. Timely differentiation between active herpetic infection and/or AGR is pivotal for proper treatment and graft preservation.
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Affiliation(s)
- Yaser Abu Dail
- Department of Ophthalmology, Saarland University Medical Center, Homburg, Saarland, Germany
| | - Loay Daas
- Department of Ophthalmology, Saarland University Medical Center, Homburg, Saarland, Germany
| | - Elias Flockerzi
- Department of Ophthalmology, Saarland University Medical Center, Homburg, Saarland, Germany
| | - Cristian Munteanu
- Department of Ophthalmology, Saarland University Medical Center, Homburg, Saarland, Germany
| | - Julian Kahlert
- Department of Ophthalmology, Saarland University Medical Center, Homburg, Saarland, Germany
| | - Sigrun Smola
- Department of Virology, Institute of Virology, Saarland University Medical Center, Homburg, Saarland, Germany
- Department of Virology, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, Saarbrücken, Germany
| | - Berthold Seitz
- Department of Ophthalmology, Saarland University Medical Center, Homburg, Saarland, Germany
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9
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Rodríguez-Muñoz MF, Martín-Martín C, Kovacheva K, Olivares ME, Izquierdo N, Pérez-Romero P, García-Ríos E. Hygiene-based measures for the prevention of cytomegalovirus infection in pregnant women: a systematic review. BMC Pregnancy Childbirth 2024; 24:172. [PMID: 38424481 PMCID: PMC10905865 DOI: 10.1186/s12884-024-06367-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 02/23/2024] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND Human Cytomegalovirus (HCMV) is the most frequent congenital infection worldwide causing important sequelae. However, no vaccine or antiviral treatments are currently available, thus interventions are restricted to behavioral measures. The aim of this systematic review was to assess evidence from available intervention studies using hygiene-based measures to prevent HCMV infection during pregnancy. METHODS Studies published from 1972 to 2023 were searched in Medline, PsycInfo, and Clinical Trials (PROSPERO, CRD42022344840) according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Methodological quality was assessed by two authors, using ROBE-2 and MINORS. RESULTS After reviewing 6 selected articles, the outcome analysis suggested that implementation of hygiene-based interventions during pregnancy prevent, to some extent, the acquisition of congenital HCMV. CONCLUSIONS However, these conclusions are based on limited and low-quality evidence available from few studies using this type of intervention in clinical practice. Thus, it would be necessary to perform effective and homogeneous intervention studies using hygiene-based measures, evaluated in high-quality randomized controlled trials (RCTs).
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Affiliation(s)
| | - Clara Martín-Martín
- National Centre for Microbiology, Instituto de Salud Carlos III (ISCIII), Carretera Majadahonda - Pozuelo km. 2, Majadahonda, Madrid, 28220, Spain
| | - Katina Kovacheva
- Faculty of Psychology, Universidad Nacional de Educación a Distancia, (UNED), Madrid, Spain
| | | | - Nuria Izquierdo
- Department of Gynecology and Obstetrics, Hospital Clínico San Carlos, Madrid, Spain
| | - Pilar Pérez-Romero
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Estéfani García-Ríos
- National Centre for Microbiology, Instituto de Salud Carlos III (ISCIII), Carretera Majadahonda - Pozuelo km. 2, Majadahonda, Madrid, 28220, Spain.
- Department of Food Biotechnology, Instituto de Agroquimica y Tecnologia de los Alimentos (IATA), CSIC, Agustín Escardino 7, Paterna, Valencia, 46980, Spain.
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Otero CE, Petkova S, Ebermann M, Taher H, John N, Hoffmann K, Davalos A, Moström MJ, Gilbride RM, Papen CR, Barber-Axthelm A, Scheef EA, Barfield R, Sprehe LM, Kendall S, Manuel TD, Vande Burgt NH, Chan C, Denton M, Streblow ZJ, Streblow DN, Hansen SG, Kaur A, Permar S, Früh K, Hengel H, Malouli D, Kolb P. Rhesus Cytomegalovirus-encoded Fcγ-binding glycoproteins facilitate viral evasion from IgG-mediated humoral immunity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.27.582371. [PMID: 38464092 PMCID: PMC10925275 DOI: 10.1101/2024.02.27.582371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Human cytomegalovirus (HCMV) encodes four viral Fc-gamma receptors (vFcγRs) that counteract antibody-mediated activation in vitro , but their role in infection and pathogenesis is unknown. To examine the in vivo function of vFcγRs in animal hosts closely related to humans, we identified and characterized vFcγRs encoded by rhesus CMV (RhCMV). We demonstrate that Rh05, Rh152/151 and Rh173 represent the complete set of RhCMV vFcγRs, each displaying functional similarities to their respective HCMV orthologs with respect to antagonizing host FcγR activation in vitro . When RhCMV-naïve rhesus macaques were infected with vFcγR-deleted RhCMV, peak plasma viremia levels and anti-RhCMV antibody responses were comparable to wildtype infections. However, the duration of plasma viremia was significantly shortened in immunocompetent, but not in CD4+ T cell-depleted animals. Since vFcγRs were not required for superinfection, we conclude that vFcγRs delay control by virus-specific adaptive immune responses, particularly antibodies, during primary infection.
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11
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Zhao XC, Ju B, Xiu NN, Sun XY, Meng FJ. When inflammatory stressors dramatically change, disease phenotypes may transform between autoimmune hematopoietic failure and myeloid neoplasms. Front Immunol 2024; 15:1339971. [PMID: 38426096 PMCID: PMC10902444 DOI: 10.3389/fimmu.2024.1339971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 01/24/2024] [Indexed: 03/02/2024] Open
Abstract
Aplastic anemia (AA) and hypoplastic myelodysplastic syndrome are paradigms of autoimmune hematopoietic failure (AHF). Myelodysplastic syndrome and acute myeloid leukemia are unequivocal myeloid neoplasms (MNs). Currently, AA is also known to be a clonal hematological disease. Genetic aberrations typically observed in MNs are detected in approximately one-third of AA patients. In AA patients harboring MN-related genetic aberrations, a poor response to immunosuppressive therapy (IST) and an increased risk of transformation to MNs occurring either naturally or after IST are predicted. Approximately 10%-15% of patients with severe AA transform the disease phenotype to MNs following IST, and in some patients, leukemic transformation emerges during or shortly after IST. Phenotypic transformations between AHF and MNs can occur reciprocally. A fraction of advanced MN patients experience an aplastic crisis during which leukemic blasts are repressed. The switch that shapes the disease phenotype is a change in the strength of extramedullary inflammation. Both AHF and MNs have an immune-active bone marrow (BM) environment (BME). In AHF patients, an inflamed BME can be evoked by infiltrated immune cells targeting neoplastic molecules, which contributes to the BM-specific autoimmune impairment. Autoimmune responses in AHF may represent an antileukemic mechanism, and inflammatory stressors strengthen antileukemic immunity, at least in a significant proportion of patients who have MN-related genetic aberrations. During active inflammatory episodes, normal and leukemic hematopoieses are suppressed, which leads to the occurrence of aplastic cytopenia and leukemic cell regression. The successful treatment of underlying infections mitigates inflammatory stress-related antileukemic activities and promotes the penetration of leukemic hematopoiesis. The effect of IST is similar to that of treating underlying infections. Investigating inflammatory stress-powered antileukemic immunity is highly important in theoretical studies and clinical practice, especially given the wide application of immune-activating agents and immune checkpoint inhibitors in the treatment of hematological neoplasms.
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Affiliation(s)
- Xi-Chen Zhao
- Department of Hematology, The Central Hospital of Qingdao West Coast New Area, Qingdao, Shandong, China
| | - Bo Ju
- Department of Hematology, The Central Hospital of Qingdao West Coast New Area, Qingdao, Shandong, China
| | - Nuan-Nuan Xiu
- Department of Hematology, The Central Hospital of Qingdao West Coast New Area, Qingdao, Shandong, China
| | - Xiao-Yun Sun
- Department of Hematology, The Central Hospital of Qingdao West Coast New Area, Qingdao, Shandong, China
| | - Fan-Jun Meng
- Department of Hematology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
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12
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Pisitpayat P, Mentreddy A, Pekmezci M, Hwang D, Shantha J, Benador-Shen C, Terry M, Pothikamjorn T, Gonzales J. Stromal Keratitis Associated With CMV Anterior Uveitis. Cornea 2024:00003226-990000000-00471. [PMID: 38294900 DOI: 10.1097/ico.0000000000003487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 12/21/2023] [Indexed: 02/02/2024]
Abstract
PURPOSE Human cytomegalovirus (CMV) has commonly been reported as a cause of anterior uveitis and corneal endotheliitis. Unlike its other herpetic family members, herpes simplex virus and varicella zoster virus, involvement of the corneal stroma in CMV is uncommon. In this case series, we describe patients with CMV stromal keratitis. METHODS This was a retrospective chart review of patients seen at a tertiary referral center from 1999 to 2023 with stromal keratitis who tested positive for CMV by directed polymerase chain reaction of aqueous fluid or corneal tissue. RESULTS This series describes 5 patients, 4 of whom presented with anterior uveitis and stromal keratitis and were confirmed to be positive for CMV through the polymerase chain reaction of aqueous fluid. The fifth patient experienced recurrent corneal graft failures, with the most recent failed graft being positive for CMV based on immunohistochemical stains of the corneal stroma. The average age of patients was 62 years (range 36-80 years). Only 1 patient (20%) exhibited elevated intraocular pressure with stellate keratic precipitates at the initial presentation, whereas 3 other patients (60%) had a known history of glaucoma. CONCLUSIONS Uveitis specialists are well aware of CMV as a cause of recurrent, hypertensive anterior uveitis but should also consider CMV in cases featuring stromal keratitis. The corneal endothelium may serve as a reservoir for both anterior uveitis and development of corneal stromal inflammation as demonstrated by the immunohistopathology exhibited in 1 case.
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Affiliation(s)
- Punyanuch Pisitpayat
- Francis I. Proctor Foundation, University of California, San Francisco, San Francisco, CA
- Department of Ophthalmology, Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand
| | - Akshay Mentreddy
- Francis I. Proctor Foundation, University of California, San Francisco, San Francisco, CA
- Department of Ophthalmology, University of California, San Francisco, San Francisco, CA
| | - Melike Pekmezci
- Department of Ophthalmology, University of California, San Francisco, San Francisco, CA
- Department of Pathology, University of California, San Francisco, San Francisco, CA
| | - David Hwang
- Department of Ophthalmology, University of California, San Francisco, San Francisco, CA
| | - Jessica Shantha
- Francis I. Proctor Foundation, University of California, San Francisco, San Francisco, CA
- Department of Ophthalmology, University of California, San Francisco, San Francisco, CA
| | | | - Merryl Terry
- Department of Ophthalmology, University of California, San Francisco, San Francisco, CA
- Department of Pathology, University of California, San Francisco, San Francisco, CA
| | | | - John Gonzales
- Francis I. Proctor Foundation, University of California, San Francisco, San Francisco, CA
- Department of Ophthalmology, University of California, San Francisco, San Francisco, CA
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13
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Wyżewski Z, Stępkowska J, Kobylińska AM, Mielcarska A, Mielcarska MB. Mcl-1 Protein and Viral Infections: A Narrative Review. Int J Mol Sci 2024; 25:1138. [PMID: 38256213 PMCID: PMC10816053 DOI: 10.3390/ijms25021138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024] Open
Abstract
MCL-1 is the prosurvival member of the Bcl-2 family. It prevents the induction of mitochondria-dependent apoptosis. The molecular mechanisms dictating the host cell viability gain importance in the context of viral infections. The premature apoptosis of infected cells could interrupt the pathogen replication cycle. On the other hand, cell death following the effective assembly of progeny particles may facilitate virus dissemination. Thus, various viruses can interfere with the apoptosis regulation network to their advantage. Research has shown that viral infections affect the intracellular amount of MCL-1 to modify the apoptotic potential of infected cells, fitting it to the "schedule" of the replication cycle. A growing body of evidence suggests that the virus-dependent deregulation of the MCL-1 level may contribute to several virus-driven diseases. In this work, we have described the role of MCL-1 in infections caused by various viruses. We have also presented a list of promising antiviral agents targeting the MCL-1 protein. The discussed results indicate targeted interventions addressing anti-apoptotic MCL1 as a new therapeutic strategy for cancers as well as other diseases. The investigation of the cellular and molecular mechanisms involved in viral infections engaging MCL1 may contribute to a better understanding of the regulation of cell death and survival balance.
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Affiliation(s)
- Zbigniew Wyżewski
- Institute of Biological Sciences, Cardinal Stefan Wyszyński University in Warsaw, Dewajtis 5, 01-815 Warsaw, Poland
| | - Justyna Stępkowska
- Institute of Family Sciences, Cardinal Stefan Wyszyński University in Warsaw, Dewajtis 5, 01-815 Warsaw, Poland;
| | - Aleksandra Maria Kobylińska
- Division of Immunology, Department of Preclinical Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences—SGGW, Ciszewskiego 8, 02-786 Warsaw, Poland; (A.M.K.); (M.B.M.)
| | - Adriana Mielcarska
- Department of Gastroenterology, Hepatology, Nutritional Disorders and Pediatrics, The Children’s Memorial Health Institute, Av. Dzieci Polskich 20, 04-730 Warsaw, Poland;
| | - Matylda Barbara Mielcarska
- Division of Immunology, Department of Preclinical Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences—SGGW, Ciszewskiego 8, 02-786 Warsaw, Poland; (A.M.K.); (M.B.M.)
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14
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Di Vito C, Coianiz N, Calvi M, Terzoli S, Zaghi E, Puccio S, Frigo A, Mariotti J, De Philippis C, Mannina D, Sarina B, Mineri R, Le-Trilling VTK, Trilling M, Castagna L, Bramanti S, Santoro A, Mavilio D. Persistence of KIR neg NK cells after haploidentical hematopoietic stem cell transplantation protects from human cytomegalovirus infection/reactivation. Front Immunol 2024; 14:1266051. [PMID: 38268918 PMCID: PMC10806243 DOI: 10.3389/fimmu.2023.1266051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 12/19/2023] [Indexed: 01/26/2024] Open
Abstract
Haploidentical hematopoietic stem cell transplantation (h-HSCT) is a therapeutic option to cure patients affected by hematologic malignancies. The kinetics and the quality of immune-reconstitution (IR) impact the clinical outcome of h-HSCT and limit the onset of life-threatening Human Cytomegalovirus (HCMV) infection/reactivation. Natural Killer (NK) cells are the first lymphocytes that recover after h-HSCT and they can provide rapid innate immune responses against opportunistic pathogens. By performing a longitudinal single-cell analysis of multiparametric flow-cytometry data, we show here that the persistence at high frequencies of CD158b1b2jneg/NKG2Apos/NKG2Cneg/NKp30pos/NKp46pos (KIRneg) NK cells is associated with HCMV infection/reactivation control. These KIRneg NK cells are "unlicensed", and are not terminal-differentiated lymphocytes appearing early during IR and mainly belonging to CD56bright/CD16neg and CD56bright/CD16pos subsets. KIRneg NK cells are enriched in oxidative and glucose metabolism pathways, produce interferon-γ, and are endowed with potent antiviral activity against HCMV ex vivo. Decreased frequencies of KIRneg NK cells early during IR are associated with clinically relevant HCMV replication. Taken together, our findings indicate that the prolonged persistence of KIRneg NK cells after h-HSCT could serve as a biomarker to better predict HCMV infection/reactivation. This phenomenon also paves the way to optimize anti-viral immune responses by enriching post-transplant donor lymphocyte infusions with KIRneg NK cells.
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Affiliation(s)
- Clara Di Vito
- Unit of Clinical and Experimental Immunology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Nicolò Coianiz
- Unit of Clinical and Experimental Immunology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Michela Calvi
- Unit of Clinical and Experimental Immunology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
- Department of Medical Biotechnologies and Translational Medicine (BioMeTra), University of Milan, Milan, Italy
| | - Sara Terzoli
- Unit of Clinical and Experimental Immunology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Elisa Zaghi
- Unit of Clinical and Experimental Immunology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Simone Puccio
- Laboratory of Translational Immunology, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Alessandro Frigo
- Unit of Clinical and Experimental Immunology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
- Department of Medical Biotechnologies and Translational Medicine (BioMeTra), University of Milan, Milan, Italy
| | - Jacopo Mariotti
- Bone Marrow Transplant Unit, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Chiara De Philippis
- Bone Marrow Transplant Unit, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Daniele Mannina
- Bone Marrow Transplant Unit, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Barbara Sarina
- Bone Marrow Transplant Unit, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Rossana Mineri
- Molecular Biology Section, Clinical Investigation Laboratory, IRCCS Humanitas Research Hospital, Milan, Italy
| | | | - Mirko Trilling
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Luca Castagna
- Bone Marrow Transplant Unit, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Stefania Bramanti
- Bone Marrow Transplant Unit, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Armando Santoro
- Bone Marrow Transplant Unit, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Domenico Mavilio
- Unit of Clinical and Experimental Immunology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
- Department of Medical Biotechnologies and Translational Medicine (BioMeTra), University of Milan, Milan, Italy
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15
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Müller L, Di Benedetto S. Immunosenescence and Cytomegalovirus: Exploring Their Connection in the Context of Aging, Health, and Disease. Int J Mol Sci 2024; 25:753. [PMID: 38255826 PMCID: PMC10815036 DOI: 10.3390/ijms25020753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/29/2023] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
Aging induces numerous physiological alterations, with immunosenescence emerging as a pivotal factor. This phenomenon has attracted both researchers and clinicians, prompting profound questions about its implications for health and disease. Among the contributing factors, one intriguing actor in this complex interplay is human cytomegalovirus (CMV), a member of the herpesvirus family. Latent CMV infection exerts a profound influence on the aging immune system, potentially contributing to age-related diseases. This review delves into the intricate relationship between immunosenescence and CMV, revealing how chronic viral infection impacts the aging immune landscape. We explore the mechanisms through which CMV can impact both the composition and functionality of immune cell populations and induce shifts in inflammatory profiles with aging. Moreover, we examine the potential role of CMV in pathologies such as cardiovascular diseases, cancer, neurodegenerative disorders, COVID-19, and Long COVID. This review underlines the importance of understanding the complex interplay between immunosenescence and CMV. It offers insights into the pathophysiology of aging and age-associated diseases, as well as COVID-19 outcomes among the elderly. By unraveling the connections between immunosenescence and CMV, we gain a deeper understanding of aging's remarkable journey and the profound role that viral infections play in transforming the human immune system.
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Affiliation(s)
- Ludmila Müller
- Max Planck Institute for Human Development, Lentzeallee 94, 14195 Berlin, Germany
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16
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Park PG, Fatima M, An T, Moon YE, Woo S, Youn H, Hong KJ. Current development of therapeutic vaccines for the treatment of chronic infectious diseases. Clin Exp Vaccine Res 2024; 13:21-27. [PMID: 38362373 PMCID: PMC10864879 DOI: 10.7774/cevr.2024.13.1.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 12/29/2023] [Indexed: 02/17/2024] Open
Abstract
Chronic infectious diseases refer to diseases that require a long period of time from onset to cure or death, the use of therapeutic vaccines has recently emerged to eradicate diseases. Currently, clinical research is underway to develop therapeutic vaccines for chronic infectious diseases based on various vaccine formulations, and the recent success of the messenger RNA vaccine platform and efforts to apply it to therapeutic vaccines are having a positive impact on conquering chronic infectious diseases. However, since research on the development of therapeutic vaccines is still relatively lacking compared to prophylactic vaccines, there is a need to focus more on the development of therapeutic vaccines to overcome threats to human health caused by chronic infectious diseases. In order to accelerate the development of therapeutic vaccines for chronic infectious diseases in the future, it is necessary to establish a clear concept of therapeutic vaccines suitable for the characteristics of each chronic infectious disease, as well as standardize vaccine effectiveness evaluation methods, secure standards/reference materials, and simplify the vaccine approval procedure.
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Affiliation(s)
- Pil-Gu Park
- Department of Microbiology, Gachon University College of Medicine, Incheon, Korea
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, Korea
| | - Munazza Fatima
- Department of Microbiology, Gachon University College of Medicine, Incheon, Korea
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, Korea
| | - Timothy An
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, Korea
| | - Ye-Eun Moon
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, Korea
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, Korea
| | - Seungkyun Woo
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, Korea
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, Korea
| | - Hyewon Youn
- Department of Nuclear Medicine, Cancer Imaging Center, Seoul National University Hospital, Seoul, Korea
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Kee-Jong Hong
- Department of Microbiology, Gachon University College of Medicine, Incheon, Korea
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, Korea
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17
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Rinaldi I, Muthalib A, Sutandar JW, Kuncoro HA, Harsono BI, Susanto N, Setiawan T, Winston K, Dewantara IR, Amin IF, Shufiyani YM. Cytomegalovirus Infection in Patient with Clear Cell Renal Cell Carcinoma. Case Rep Med 2023; 2023:5560673. [PMID: 38023618 PMCID: PMC10661874 DOI: 10.1155/2023/5560673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 08/08/2023] [Accepted: 10/25/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction Cytomegalovirus (CMV) infection is a widespread condition that can affect individuals of all ages. Most cases of CMV infection are mild and resolve on their own. However, in immunocompromised individuals, such as post-transplant patients or those with cancer, severe infections can occur. While there have been several studies on CMV infection in post-transplant patients, there is limited literature on CMV infection in cancer, particularly in kidney cancer. Case Report. In this case report, we present the case of a 61-year-old man with clear cell renal cell carcinoma who underwent targeted therapy with the receptor tyrosine kinase (RTK) inhibitor lenvatinib and the mammalian target of rapamycin (mTOR) inhibitor everolimus. The patient was hospitalized for 26 days and admitted to the intensive care unit (ICU) due to shortness of breath, decreased oxygen saturation, and irregular breathing. Cytomegalovirus polymerase chain reaction (PCR) test results were positive. Given the high prevalence of CMV infection in developing countries, it is likely that the patient had a reactivation of CMV. As such, the patient was subsequently treated with ganciclovir for 14 days and showed improvement in symptoms such as shortness of breath, cough, fever, and increased oxygen saturation. Following recovery, the patient received maintenance therapy with oral valganciclovir for 7 days. No further symptoms appeared during subsequent cancer treatments. Conclusion Cancer patients who are undergoing treatment are at a higher risk for developing opportunistic infections, which can result in morbidity and mortality. Therefore, healthcare professionals should be aware of the possibility of CMV infection in cancer patients and be prepared to diagnose and treat the infection, particularly in areas where the prevalence of CMV infection is high.
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Affiliation(s)
- Ikhwan Rinaldi
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Cipto Mangunkusumo National General Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Abdul Muthalib
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Cipto Mangunkusumo National General Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | | | | | | | - Nelly Susanto
- Department of Radiology, Gading Pluit Hospital, Jakarta, Indonesia
| | - Tjondro Setiawan
- Department of Radiology, Gading Pluit Hospital, Jakarta, Indonesia
| | - Kevin Winston
- Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
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18
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Naigeon M, Roulleaux Dugage M, Danlos FX, Boselli L, Jouniaux JM, de Oliveira C, Ferrara R, Duchemann B, Berthot C, Girard L, Flippot R, Albiges L, Farhane S, Saulnier P, Lacroix L, Griscelli F, Roman G, Hulett T, Marabelle A, Cassard L, Besse B, Chaput N. Human virome profiling identified CMV as the major viral driver of a high accumulation of senescent CD8 + T cells in patients with advanced NSCLC. SCIENCE ADVANCES 2023; 9:eadh0708. [PMID: 37939189 PMCID: PMC10631735 DOI: 10.1126/sciadv.adh0708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 10/05/2023] [Indexed: 11/10/2023]
Abstract
Circulating senescent CD8+ T (T8sen) cells are characterized by a lack of proliferative capacities but retain cytotoxic activity and have been associated to resistance to immunotherapy in patients with advanced non-small cell lung cancer (aNSCLC). We aimed to better characterize T8sen and to determine which factors were associated with their accumulation in patients with aNSCLC. Circulating T8sen cells were characterized by a higher expression of SA-βgal and the transcription factor T-bet, confirming their senescent status. Using whole virome profiling, cytomegalovirus (CMV) was the only virus associated with T8sen. CMV was necessary but not sufficient to explain high accumulation of T8sen (T8senhigh status). In CMV+ patients, the proportion of T8sen cells increased with cancer progression. Last, CMV-induced T8senhigh phenotype but not CMV seropositivity itself was associated with worse progression-free and overall survival in patients treated with anti-PD-(L)1 therapy but not with chemotherapy. Overall, CMV is the unique viral driver of T8sen-driven resistance to anti-PD-(L)1 antibodies in patients with aNSCLC.
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Affiliation(s)
- Marie Naigeon
- Laboratoire d'Immunomonitoring en Oncologie, INSERM US23, CNRS UMS 3655, Gustave Roussy, Villejuif, France
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
- Faculté de Pharmacie, Université Paris-Saclay, Orsay, France
| | - Matthieu Roulleaux Dugage
- Laboratoire d'Immunomonitoring en Oncologie, INSERM US23, CNRS UMS 3655, Gustave Roussy, Villejuif, France
- Service d’Oncologie Médicale, Hôpital Européen Georges Pompidou, AP-HP, Paris, France
- Département d’Innovation Thérapeutique et d’Essais Précoces (DITEP), Gustave Roussy, Villejuif, France
| | - François-Xavier Danlos
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
- Département d’Innovation Thérapeutique et d’Essais Précoces (DITEP), Gustave Roussy, Villejuif, France
- Laboratoire de Recherche Translationnelle en Immunothérapie (LRTI), INSERM U1015 and Centre d’Investigation Clinique BIOTHERIS, INSERM CIC1428, Gustave Roussy, Villejuif, France
| | - Lisa Boselli
- Laboratoire d'Immunomonitoring en Oncologie, INSERM US23, CNRS UMS 3655, Gustave Roussy, Villejuif, France
| | - Jean-Mehdi Jouniaux
- Laboratoire d'Immunomonitoring en Oncologie, INSERM US23, CNRS UMS 3655, Gustave Roussy, Villejuif, France
| | - Caroline de Oliveira
- Laboratoire d'Immunomonitoring en Oncologie, INSERM US23, CNRS UMS 3655, Gustave Roussy, Villejuif, France
| | - Roberto Ferrara
- Laboratoire d'Immunomonitoring en Oncologie, INSERM US23, CNRS UMS 3655, Gustave Roussy, Villejuif, France
- Università Vita-Salute San Raffaele, Milan, Italy
| | - Boris Duchemann
- Laboratoire d'Immunomonitoring en Oncologie, INSERM US23, CNRS UMS 3655, Gustave Roussy, Villejuif, France
- Département d’oncologie thoracique et médicale, Hôpitaux Universitaires Paris Seine-Saint-Denis, Hôpital Avicenne, AP-HP, Bobigny, France
| | - Caroline Berthot
- Laboratoire d'Immunomonitoring en Oncologie, INSERM US23, CNRS UMS 3655, Gustave Roussy, Villejuif, France
| | - Lou Girard
- Laboratoire d'Immunomonitoring en Oncologie, INSERM US23, CNRS UMS 3655, Gustave Roussy, Villejuif, France
- Faculté de Pharmacie, Université Paris-Saclay, Orsay, France
| | - Ronan Flippot
- Laboratoire d'Immunomonitoring en Oncologie, INSERM US23, CNRS UMS 3655, Gustave Roussy, Villejuif, France
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Laurence Albiges
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
- Département de Médecine Oncologique, Gustave Roussy, Villejuif, France
| | - Siham Farhane
- Département d’Innovation Thérapeutique et d’Essais Précoces (DITEP), Gustave Roussy, Villejuif, France
- Laboratoire de Recherche Translationnelle en Immunothérapie (LRTI), INSERM U1015 and Centre d’Investigation Clinique BIOTHERIS, INSERM CIC1428, Gustave Roussy, Villejuif, France
| | | | - Ludovic Lacroix
- AMMICa, UAR 3655/US23, Gustave Roussy, Villejuif, France
- Département de Biologie Médicale et Pathologie Médicales, Gustave Roussy, Villejuif, France
| | - Frank Griscelli
- Département de Biologie Médicale et Pathologie Médicales, Gustave Roussy, Villejuif, France
| | - Gabriel Roman
- CDI Laboratories Inc., 1 N. Haven Street, Suite B001, Baltimore, MD 21224, USA
| | - Tyler Hulett
- CDI Laboratories Inc., 1 N. Haven Street, Suite B001, Baltimore, MD 21224, USA
| | - Aurélien Marabelle
- Département d’Innovation Thérapeutique et d’Essais Précoces (DITEP), Gustave Roussy, Villejuif, France
- Laboratoire de Recherche Translationnelle en Immunothérapie (LRTI), INSERM U1015 and Centre d’Investigation Clinique BIOTHERIS, INSERM CIC1428, Gustave Roussy, Villejuif, France
| | - Lydie Cassard
- Laboratoire d'Immunomonitoring en Oncologie, INSERM US23, CNRS UMS 3655, Gustave Roussy, Villejuif, France
| | - Benjamin Besse
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
- Département de Médecine Oncologique, Gustave Roussy, Villejuif, France
| | - Nathalie Chaput
- Laboratoire d'Immunomonitoring en Oncologie, INSERM US23, CNRS UMS 3655, Gustave Roussy, Villejuif, France
- Faculté de Pharmacie, Université Paris-Saclay, Orsay, France
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19
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Huang C, Solis D, Sahoo MK, Pinsky BA. Assessment of an automated Cytomegalovirus nucleic acid amplification test using clinical plasma, bronchoalveolar lavage, and tissue specimens. J Clin Virol 2023; 168:105582. [PMID: 37788527 DOI: 10.1016/j.jcv.2023.105582] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 09/04/2023] [Accepted: 09/08/2023] [Indexed: 10/05/2023]
Abstract
BACKGROUND Cytomegalovirus (CMV) causes significant morbidity and mortality in immunocompromised patients, particularly transplant recipients. Quantitation of CMV DNA in peripheral blood is used to monitor prophylactic and pre-emptive approaches to prevent CMV disease, whereas CMV DNA testing of non-plasma specimens may aid in the diagnosis of end-organ disease. METHODS The analytical performance of the FDA-approved Aptima CMV Quant Assay was evaluated using reference CMV (SeraCare) diluted in defibrinated human plasma, as well as negative bronchoalveolar lavage fluid and tissue. Agreement was determined using 100 clinical acid-citrate-dextrose (ACD) plasma specimens, 77 bronchoalveolar lavage (BAL) fluids, and 101 tissues previously tested using artus CMV qPCR. RESULTS Aptima CMV lower limit of detection (LLOD) was 169 IU/mL for ACD plasma, 100 IU/mL for BAL, and 50 IU/mL for tissue. Positive percent agreement (PPA) was 100.0% (50/50; 95% CI: 92.9% - 100.0%) and negative percent agreement (NPA) was 94.0% (47/50; 95% CI: 83.5% - 98.8%) for ACD plasma. Bland-Altman analysis revealed a bias of 0.20 log10 IU/mL (Aptima - artus) with 95% limits of agreement of -0.53 to 0.93. For BAL fluids, PPA was 70.0% (14/20; 95% CI: 45.7% - 88.1%) and NPA was 82.4% (43/51; 95% CI: 69.1% - 91.6%). For tissues, PPA was 90.0% (45/50; 95% CI: 78.2% - 96.7%) and NPA was 94.0% (47/50; 95% CI: 83.5% - 98.8%). CONCLUSIONS The Aptima CMV Quant Assay demonstrates high analytical sensitivity and good overall agreement using clinical plasma and tissue specimens.
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Affiliation(s)
- ChunHong Huang
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Daniel Solis
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Malaya K Sahoo
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Benjamin A Pinsky
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA; Department of Medicine, Division of Infectious Diseases and Geographic Medicine, Stanford University School of Medicine, Stanford, CA, USA.
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20
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Bruno F, Abondio P, Bruno R, Ceraudo L, Paparazzo E, Citrigno L, Luiselli D, Bruni AC, Passarino G, Colao R, Maletta R, Montesanto A. Alzheimer's disease as a viral disease: Revisiting the infectious hypothesis. Ageing Res Rev 2023; 91:102068. [PMID: 37704050 DOI: 10.1016/j.arr.2023.102068] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/15/2023]
Abstract
Alzheimer's disease (AD) represents the most frequent type of dementia in elderly people. Two major forms of the disease exist: sporadic - the causes of which have not yet been fully understood - and familial - inherited within families from generation to generation, with a clear autosomal dominant transmission of mutations in Presenilin 1 (PSEN1), 2 (PSEN2) or Amyloid Precursors Protein (APP) genes. The main hallmark of AD consists of extracellular deposits of amyloid-beta (Aβ) peptide and intracellular deposits of the hyperphosphorylated form of the tau protein. An ever-growing body of research supports the viral infectious hypothesis of sporadic forms of AD. In particular, it has been shown that several herpes viruses (i.e., HHV-1, HHV-2, HHV-3 or varicella zoster virus, HHV-4 or Epstein Barr virus, HHV-5 or cytomegalovirus, HHV-6A and B, HHV-7), flaviviruses (i.e., Zika virus, Dengue fever virus, Japanese encephalitis virus) as well as Human Immunodeficiency Virus (HIV), hepatitis viruses (HAV, HBV, HCV, HDV, HEV), SARS-CoV2, Ljungan virus (LV), Influenza A virus and Borna disease virus, could increase the risk of AD. Here, we summarized and discussed these results. Based on these findings, significant issues for future studies are also put forward.
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Affiliation(s)
- Francesco Bruno
- Regional Neurogenetic Centre (CRN), Department of Primary Care, Azienda Sanitaria Provinciale Di Catanzaro, Viale A. Perugini, 88046 Lamezia Terme, CZ, Italy; Association for Neurogenetic Research (ARN), Lamezia Terme, CZ, Italy
| | - Paolo Abondio
- Laboratory of Ancient DNA, Department of Cultural Heritage, University of Bologna, Via degli Ariani 1, 48121 Ravenna, Italy.
| | - Rossella Bruno
- Sudent at the Department of Medical and Surgical Sciences, Magna Graecia University of Catanzaro, 88050 Catanzaro, Italy
| | - Leognano Ceraudo
- Sudent at the Department of Medical and Surgical Sciences, University of Parma, 43121 Parma, Italy
| | - Ersilia Paparazzo
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Rende 87036, Italy
| | - Luigi Citrigno
- National Research Council (CNR) - Institute for Biomedical Research and Innovation - (IRIB), 87050 Mangone, Cosenza, Italy
| | - Donata Luiselli
- Laboratory of Ancient DNA, Department of Cultural Heritage, University of Bologna, Via degli Ariani 1, 48121 Ravenna, Italy
| | - Amalia C Bruni
- Regional Neurogenetic Centre (CRN), Department of Primary Care, Azienda Sanitaria Provinciale Di Catanzaro, Viale A. Perugini, 88046 Lamezia Terme, CZ, Italy; Association for Neurogenetic Research (ARN), Lamezia Terme, CZ, Italy
| | - Giuseppe Passarino
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Rende 87036, Italy
| | - Rosanna Colao
- Regional Neurogenetic Centre (CRN), Department of Primary Care, Azienda Sanitaria Provinciale Di Catanzaro, Viale A. Perugini, 88046 Lamezia Terme, CZ, Italy
| | - Raffaele Maletta
- Regional Neurogenetic Centre (CRN), Department of Primary Care, Azienda Sanitaria Provinciale Di Catanzaro, Viale A. Perugini, 88046 Lamezia Terme, CZ, Italy; Association for Neurogenetic Research (ARN), Lamezia Terme, CZ, Italy
| | - Alberto Montesanto
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Rende 87036, Italy.
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21
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Pantalone MR, Almazan NM, Lattanzio R, Taher C, De Fabritiis S, Valentinuzzi S, Bishehsari F, Mahdavinia M, Verginelli F, Rahbar A, Mariani-Costantini R, Söderberg-Naucler C. Human cytomegalovirus infection enhances 5‑lipoxygenase and cycloxygenase‑2 expression in colorectal cancer. Int J Oncol 2023; 63:116. [PMID: 37654195 PMCID: PMC10546380 DOI: 10.3892/ijo.2023.5564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 07/07/2023] [Indexed: 09/02/2023] Open
Abstract
Colorectal cancer (CRC) is one of the most common and fatal types of cancer. Inflammation promotes CRC development, however, the underlying etiological factors are unknown. Human cytomegalovirus (HCMV), a virus that induces inflammation and other cancer hallmarks, has been detected in several types of malignancy, including CRC. The present study investigated whether HCMV infection was associated with expression of the pro‑inflammatory enzymes 5‑lipoxygenase (5‑LO) and cyclooxygenase‑2 (COX‑2) and other molecular, genetic and clinicopathological CRC features. The present study assessed 146 individual paraffin‑embedded CRC tissue microarray (TMA) cores already characterized for TP53 and KRAS mutations, microsatellite instability (MSI) status, Ki‑67 index and EGFR by immunohistochemistry (IHC). The cores were further analyzed by IHC for the expression of two HCMV proteins (Immediate Early, IE and pp65) and the inflammatory markers 5‑LO and COX‑2. The CRC cell lines Caco‑2 and LS‑174T were infected with HCMV strain VR1814, treated with antiviral drug ganciclovir (GCV) and/or anti‑inflammatory drug celecoxib (CCX) and analyzed by reverse transcription‑quantitative PCR and immunofluorescence for 5‑LO, COX‑2, IE and pp65 transcripts and proteins. HCMV IE and pp65 proteins were detected in ~90% of the CRC cases tested; this was correlated with COX‑2, 5‑LO and KI‑67 expression, but not with EGFR immunostaining, TP53 and KRAS mutations or MSI status. In vitro, HCMV infection upregulated 5‑LO and COX‑2 transcript and proteins in both Caco‑2 and LS‑174T cells and enhanced cell proliferation as determined by MTT assay. Treatment with GCV and CCX significantly decreased the transcript levels of COX‑2, 5‑LO, HCMV IE and pp65 in infected cells. HCMV was widely expressed in CRC and may promote inflammation and serve as a potential new target for CRC therapy.
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Affiliation(s)
- Mattia Russel Pantalone
- Department of Medicine, Solna, Microbial Pathogenesis Unit, Karolinska Institutet, 17164 Stockholm, Sweden
- Department of Neurology, Karolinska University Hospital, 17164 Stockholm, Sweden
- Center for Advanced Studies and Technology, G. d'Annunzio University, I-66100 Chieti, Italy
| | - Nerea Martin Almazan
- Department of Medicine, Solna, Microbial Pathogenesis Unit, Karolinska Institutet, 17164 Stockholm, Sweden
- Department of Laboratory Medicine, Unit of Microbial Pathogenesis, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Rossano Lattanzio
- Center for Advanced Studies and Technology, G. d'Annunzio University, I-66100 Chieti, Italy
- Department of Innovative Technologies in Medicine & Dentistry, G. d'Annunzio University, I-66100 Chieti, Italy
| | - Chato Taher
- Department of Basic Sciences, Hawler Medical University, Erbil 44001, Iraq
| | - Simone De Fabritiis
- Center for Advanced Studies and Technology, G. d'Annunzio University, I-66100 Chieti, Italy
- Department of Innovative Technologies in Medicine & Dentistry, G. d'Annunzio University, I-66100 Chieti, Italy
| | - Silvia Valentinuzzi
- Center for Advanced Studies and Technology, G. d'Annunzio University, I-66100 Chieti, Italy
- Department of Pharmacy, G. d'Annunzio University of Chieti-Pescara, I-66100 Chieti, Italy
| | - Faraz Bishehsari
- Division of Digestive Diseases, Rush Center for Integrated Microbiome and Chronobiology Research, Rush University Medical Center, Chicago, IL 60612, USA
- Digestive Disease Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran 14114, Iran
| | - Mahboobeh Mahdavinia
- Digestive Disease Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran 14114, Iran
- Department of Internal Medicine, Division of Allergy and Immunology, Rush University Medical Center, Chicago, IL 60612, USA
| | - Fabio Verginelli
- Center for Advanced Studies and Technology, G. d'Annunzio University, I-66100 Chieti, Italy
- Department of Pharmacy, G. d'Annunzio University of Chieti-Pescara, I-66100 Chieti, Italy
| | - Afsar Rahbar
- Department of Medicine, Solna, Microbial Pathogenesis Unit, Karolinska Institutet, 17164 Stockholm, Sweden
- Department of Neurology, Karolinska University Hospital, 17164 Stockholm, Sweden
| | | | - Cecilia Söderberg-Naucler
- Department of Medicine, Solna, Microbial Pathogenesis Unit, Karolinska Institutet, 17164 Stockholm, Sweden
- Department of Neurology, Karolinska University Hospital, 17164 Stockholm, Sweden
- MediCity Research Laboratory, University of Turku, FI-20014 Turku, Finland
- Institute of Biomedicine, University of Turku, FI-20014 Turku, Finland
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22
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Unterberg M, Ehrentraut SF, Bracht T, Wolf A, Haberl H, von Busch A, Rump K, Ziehe D, Bazzi M, Thon P, Sitek B, Marcus K, Bayer M, Schork K, Eisenacher M, Ellger B, Oswald D, Wappler F, Defosse J, Henzler D, Köhler T, Zarbock A, Putensen CP, Schewe JC, Frey UH, Anft M, Babel N, Steinmann E, Brüggemann Y, Trilling M, Schlüter A, Nowak H, Adamzik M, Rahmel T, Koos B. Human cytomegalovirus seropositivity is associated with reduced patient survival during sepsis. Crit Care 2023; 27:417. [PMID: 37907989 PMCID: PMC10619294 DOI: 10.1186/s13054-023-04713-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/26/2023] [Indexed: 11/02/2023] Open
Abstract
BACKGROUND Sepsis is one of the leading causes of death. Treatment attempts targeting the immune response regularly fail in clinical trials. As HCMV latency can modulate the immune response and changes the immune cell composition, we hypothesized that HCMV serostatus affects mortality in sepsis patients. METHODS We determined the HCMV serostatus (i.e., latency) of 410 prospectively enrolled patients of the multicenter SepsisDataNet.NRW study. Patients were recruited according to the SEPSIS-3 criteria and clinical data were recorded in an observational approach. We quantified 13 cytokines at Days 1, 4, and 8 after enrollment. Proteomics data were analyzed from the plasma samples of 171 patients. RESULTS The 30-day mortality was higher in HCMV-seropositive patients than in seronegative sepsis patients (38% vs. 25%, respectively; p = 0.008; HR, 1.656; 95% CI 1.135-2.417). This effect was observed independent of age (p = 0.010; HR, 1.673; 95% CI 1.131-2.477). The predictive value on the outcome of the increased concentrations of IL-6 was present only in the seropositive cohort (30-day mortality, 63% vs. 24%; HR 3.250; 95% CI 2.075-5.090; p < 0.001) with no significant differences in serum concentrations of IL-6 between the two groups. Procalcitonin and IL-10 exhibited the same behavior and were predictive of the outcome only in HCMV-seropositive patients. CONCLUSION We suggest that the predictive value of inflammation-associated biomarkers should be re-evaluated with regard to the HCMV serostatus. Targeting HCMV latency might open a new approach to selecting suitable patients for individualized treatment in sepsis.
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Affiliation(s)
- M Unterberg
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - S F Ehrentraut
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Bonn, Bonn, Germany
| | - T Bracht
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
- Medizinisches Proteom-Center, Ruhr-University Bochum, 44801, Bochum, Germany
| | - A Wolf
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - H Haberl
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - A von Busch
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - K Rump
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - D Ziehe
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - M Bazzi
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - P Thon
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - B Sitek
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
- Medizinisches Proteom-Center, Ruhr-University Bochum, 44801, Bochum, Germany
| | - K Marcus
- Medizinisches Proteom-Center, Ruhr-University Bochum, 44801, Bochum, Germany
- Medical Proteome Analysis, Center for Proteindiagnostics (PRODI), Ruhr University Bochum, 44801, Bochum, Germany
| | - M Bayer
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
- Medizinisches Proteom-Center, Ruhr-University Bochum, 44801, Bochum, Germany
| | - K Schork
- Medizinisches Proteom-Center, Ruhr-University Bochum, 44801, Bochum, Germany
- Medical Proteome Analysis, Center for Proteindiagnostics (PRODI), Ruhr University Bochum, 44801, Bochum, Germany
| | - M Eisenacher
- Medizinisches Proteom-Center, Ruhr-University Bochum, 44801, Bochum, Germany
- Medical Proteome Analysis, Center for Proteindiagnostics (PRODI), Ruhr University Bochum, 44801, Bochum, Germany
| | - B Ellger
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Klinikum Westfalen, Dortmund, Germany
| | - D Oswald
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Klinikum Westfalen, Dortmund, Germany
| | - F Wappler
- Department of Anaesthesiology and Operative Intensive Care Medicine, University of Witten/Herdecke, Cologne Merheim Medical School, Cologne, Germany
| | - J Defosse
- Department of Anaesthesiology and Operative Intensive Care Medicine, University of Witten/Herdecke, Cologne Merheim Medical School, Cologne, Germany
| | - D Henzler
- Department of Anesthesiology, Surgical Intensive Care, Emergency and Pain Medicine, Ruhr-University Bochum, Klinikum Herford, Herford, Germany
| | - T Köhler
- Department of Anesthesiology, Surgical Intensive Care, Emergency and Pain Medicine, Ruhr-University Bochum, Klinikum Herford, Herford, Germany
- Department of Anesthesiology and Intensive Care Medicine, AMEOS-Klinikum Halberstadt, Halberstadt, Germany
| | - A Zarbock
- Klinik für Anästhesiologie, Operative Intensivmedizin und Schmerztherapie, Universitätsklinikum Münster, Münster, Germany
| | - C P Putensen
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Bonn, Bonn, Germany
| | - J C Schewe
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Bonn, Bonn, Germany
| | - U H Frey
- Marien Hospital Herne, Universitätsklinikum der Ruhr-Universität Bochum, Bochum, Germany
| | - M Anft
- Center for Translational Medicine, Medical Clinic I, Marien Hospital Herne, University Hospital of the Ruhr-University Bochum, Herne, Germany
| | - N Babel
- Center for Translational Medicine, Medical Clinic I, Marien Hospital Herne, University Hospital of the Ruhr-University Bochum, Herne, Germany
| | - E Steinmann
- Department of Molecular and Medical Virology, Ruhr University Bochum, 44801, Bochum, Germany
| | - Y Brüggemann
- Department of Molecular and Medical Virology, Ruhr University Bochum, 44801, Bochum, Germany
| | - M Trilling
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - A Schlüter
- Knappschaft Kliniken GmbH, Recklinghausen, Germany
| | - H Nowak
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
- Center for Artficial Intelligence, Medical Informatics and Data Science, University Hospital Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - M Adamzik
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - T Rahmel
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - B Koos
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany.
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23
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Zeng J, Jaijyan DK, Yang S, Pei S, Tang Q, Zhu H. Exploring the Potential of Cytomegalovirus-Based Vectors: A Review. Viruses 2023; 15:2043. [PMID: 37896820 PMCID: PMC10612100 DOI: 10.3390/v15102043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 09/28/2023] [Accepted: 09/30/2023] [Indexed: 10/29/2023] Open
Abstract
Viral vectors have emerged as powerful tools for delivering and expressing foreign genes, playing a pivotal role in gene therapy. Among these vectors, cytomegalovirus (CMV) stands out as a promising viral vector due to its distinctive attributes including large packaging capacity, ability to achieve superinfection, broad host range, capacity to induce CD8+ T cell responses, lack of integration into the host genome, and other qualities that make it an appealing vector candidate. Engineered attenuated CMV strains such as Towne and AD169 that have a ~15 kb genomic DNA deletion caused by virus passage guarantee human safety. CMV's large genome enables the efficient incorporation of substantial foreign genes as demonstrated by CMV vector-based therapies for SIV, tuberculosis, cancer, malaria, aging, COVID-19, and more. CMV is capable of reinfecting hosts regardless of prior infection or immunity, making it highly suitable for multiple vector administrations. In addition to its broad cellular tropism and sustained high-level gene expression, CMV triggers robust, virus-specific CD8+ T cell responses, offering a significant advantage as a vaccine vector. To date, successful development and testing of murine CMV (MCMV) and rhesus CMV (RhCMV) vectors in animal models have demonstrated the efficacy of CMV-based vectors. These investigations have explored the potential of CMV vectors for vaccines against HIV, cancer, tuberculosis, malaria, and other infectious pathogens, as well as for other gene therapy applications. Moreover, the generation of single-cycle replication CMV vectors, produced by deleting essential genes, ensures robust safety in an immunocompromised population. The results of these studies emphasize CMV's effectiveness as a gene delivery vehicle and shed light on the future applications of a CMV vector. While challenges such as production complexities and storage limitations need to be addressed, ongoing efforts to bridge the gap between animal models and human translation continue to fuel the optimism surrounding CMV-based vectors. This review will outline the properties of CMV vectors and discuss their future applications as well as possible limitations.
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Affiliation(s)
- Janine Zeng
- Department of Microbiology and Molecular Genetics, New Jersey Medical School, Rutgers University, 225 Warren Street, Newark, NJ 070101, USA
| | - Dabbu Kumar Jaijyan
- Department of Microbiology and Molecular Genetics, New Jersey Medical School, Rutgers University, 225 Warren Street, Newark, NJ 070101, USA
| | - Shaomin Yang
- Department of Pain Medicine and Shenzhen Municipal Key Laboratory for Pain Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen 518060, China
| | - Shakai Pei
- Department of Microbiology and Molecular Genetics, New Jersey Medical School, Rutgers University, 225 Warren Street, Newark, NJ 070101, USA
| | - Qiyi Tang
- Department of Microbiology, Howard University College of Medicine, 520 W Street NW, Washington, DC 20059, USA
| | - Hua Zhu
- Department of Microbiology and Molecular Genetics, New Jersey Medical School, Rutgers University, 225 Warren Street, Newark, NJ 070101, USA
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24
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El Baba R, Haidar Ahmad S, Monnien F, Mansar R, Bibeau F, Herbein G. Polyploidy, EZH2 upregulation, and transformation in cytomegalovirus-infected human ovarian epithelial cells. Oncogene 2023; 42:3047-3061. [PMID: 37634008 PMCID: PMC10555822 DOI: 10.1038/s41388-023-02813-4] [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: 07/10/2023] [Revised: 08/10/2023] [Accepted: 08/15/2023] [Indexed: 08/28/2023]
Abstract
Human cytomegalovirus (HCMV) infection has been implicated in epithelial ovarian cancer (OC). Polyploidy giant cancer cells (PGCCs) have been observed in high-grade serous ovarian carcinoma (HGSOC); they possess cancer stem cell-like characteristics and give rise to progeny cells expressing epithelial-mesenchymal transition (EMT) markers. EZH2 plays a potential oncogenic role, correlating with high proliferative index and tumor grade in OC. Herein, we present the experimental evidence for HCMV as a reprogramming vector that elicited human ovarian epithelial cells (OECs) transformation leading to the generation of "CMV-transformed Ovarian cells" (CTO). The infection with the two high-risk clinical strains, namely HCMV-DB and BL provoked a distinct cellular and molecular mechanisms in infected OECs. EZH2 upregulation and cellular proliferation were curtailed by using EZH2 inhibitors. The HGSOC biopsies were characterized by an elevated EZH2 expression, possessing a strong positive correlation between the aforementioned marker and HCMV. From HGSOC biopsies, we isolated three HCMV clinical strains that transformed OECs generating CTO cells which displayed proliferative potentials in addition to EZH2 upregulation and PGCCs generation; these features were reduced upon EZH2 inhibition. High-risk HCMV strains transformed OECs confirming an HCMV-induced epithelial ovarian cancer model and highlighting EZH2 tumorigenic properties. Our findings might be highly relevant in the pathophysiology of ovarian tumors thereby nominating new targeted therapeutics.
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Affiliation(s)
- Ranim El Baba
- Department of Pathogens & Inflammation-EPILAB Laboratory EA4266, University of Franche-Comté, Besançon, France
| | - Sandy Haidar Ahmad
- Department of Pathogens & Inflammation-EPILAB Laboratory EA4266, University of Franche-Comté, Besançon, France
| | | | - Racha Mansar
- Department of Pathology, CHU Besançon, Besançon, France
| | | | - Georges Herbein
- Department of Pathogens & Inflammation-EPILAB Laboratory EA4266, University of Franche-Comté, Besançon, France.
- Department of Virology, CHU Besançon, Besançon, France.
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25
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Lee S, Chih H, Affandi J, Waters S, Irish A, Price P. Markers of terminally differentiated T-cells as predictors of vascular health in renal transplant recipients and healthy adults. Clin Immunol 2023; 255:109760. [PMID: 37678718 DOI: 10.1016/j.clim.2023.109760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/27/2023] [Accepted: 09/02/2023] [Indexed: 09/09/2023]
Abstract
Meta-analyses confirm a link between persistent human cytomegalovirus (HCMV) infections and cardiovascular disease, but the mechanisms are unclear. We assess whether proportions of T-cell populations are reliable predictors of subclinical atherosclerosis and/or reflect the burden of HCMV in healthy adults and renal transplant recipients (RTR). Samples were collected from healthy adults and RTR at baseline (T0) and after 32 (24-40) months (T1). Left carotid intima media thickness (cIMT) and proportions of T-cells expressing CD57, LIR-1 or the TEMRA phenotype increased in healthy adults and RTR. The T-cell populations correlated with levels of HCMV-reactive antibodies. Proportions of CD57+, LIR-1+ and TEMRA CD8+ T-cells correlated with left and right cIMT in healthy adults. Proportions of CD57+ and LIR-1+ CD8+ T-cells at T0 predicted left cIMT at T1 among healthy adults, but these associations disappeared after adjustment for covariates. We link LIR-1+ and CD57+CD8+ T-cells with the progression of cIMT in healthy adults.
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Affiliation(s)
- Silvia Lee
- School of Medicine, Curtin Health Innovation Research Institute, Curtin University, Bentley, Australia; Department of Microbiology, Pathwest Laboratory Medicine, Western Australia, Australia.
| | - HuiJun Chih
- Curtin School of Population Health, Curtin University, Bentley, Perth, Australia
| | - Jacquita Affandi
- Curtin School of Population Health, Curtin University, Bentley, Perth, Australia
| | - Shelley Waters
- School of Medicine, Curtin Health Innovation Research Institute, Curtin University, Bentley, Australia
| | - Ashley Irish
- Renal Unit, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Patricia Price
- School of Medicine, Curtin Health Innovation Research Institute, Curtin University, Bentley, Australia
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Kohda C, Ino S, Ishikawa H, Kuno Y, Nagashima R, Iyoda M. The essential role of intestinal microbiota in cytomegalovirus reactivation. Microbiol Spectr 2023; 11:e0234123. [PMID: 37754566 PMCID: PMC10581228 DOI: 10.1128/spectrum.02341-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 08/10/2023] [Indexed: 09/28/2023] Open
Abstract
Human cytomegalovirus (HCMV) is a member of Herpesviridae. It has been reported that HCMV is reactivated in the breast milk of HCMV-seropositive lactating women. As we have reported various aspects of the roles of indigenous microbiota, its role in the murine CMV (MCMV) reactivation was examined in this study. MCMV was latently infected in the salivary gland, mammary tissues, and colon in the pregnant mice. When the salivary gland, mammary tissues, and colon were removed 5 days after delivery, MCMV reactivation of latent infection in each organ was confirmed by the detection of MCMV IE1 mRNA using reverse transcription-quantitative PCR. MCMV reactivation was observed in 100% of the mice during pregnancy. Next, for the elimination of intestinal microbiota, the pregnant mice were treated with low-dose or high-dose non-absorbable antibiotics. Although the numbers of aerobe/anaerobe in cecal content in low-dose antibiotic-treated mice were comparable to those in untreated controls, high-dose antibiotic treatment decreased the number of aerobe/anaerobe microbes from ca.9.0 Log10 to ca.3.0 Log10 (cfu/g). However, it could not be confirmed in 16S rRNA analysis that specific bacterial phylum or genus was eliminated by this high-dose treatment. Interestingly, MCMV reactivation was also observed in 100% of low-dose antibiotic-treated mice, whereas, in high-dose antibiotic-treated mice, MCMV reactivation was not observed in the salivary gland or colon. MCMV IE1 mRNA was detected only in 33% of the mammary tissues of those high-dose-treated mice. These results suggest that the indigenous microbiota played a crucial role in the reactivation of latent infection. IMPORTANCE Human cytomegalovirus (HCMV) infection via breast milk is a serious problem for very preterm infants such as developing a sepsis-like syndrome, cholestasis, or bronchopulmonary dysplasia, among others. It has been reported that HCMV is reactivated in the breast milk of HCMV-seropositive lactating women. In this study, the roles of indigenous microbiota in the murine CMV (MCMV) reactivation were examined using a mouse model. In MCMV latently infected mice, MCMV reactivation was observed in 100% of the mice during pregnancy. For the elimination of intestinal microbiota, MCMV-latent mice were treated with non-absorbable antibiotics. After delivery, MCMV reactivation was not observed in antibiotic-treated mice. This result suggested that the indigenous microbiota played a crucial role in the reactivation of latent infection.
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Affiliation(s)
- Chikara Kohda
- Department of Microbiology and Immunology, Showa University School of Medicine, Tokyo, Japan
| | - Satoshi Ino
- Department of Microbiology and Immunology, Showa University School of Medicine, Tokyo, Japan
| | - Hiroki Ishikawa
- Department of Microbiology and Immunology, Showa University School of Medicine, Tokyo, Japan
| | - Yoshihiro Kuno
- Department of Microbiology and Immunology, Showa University School of Medicine, Tokyo, Japan
- Department of Medicine, Division of Nephrology, Showa University School of Medicine, Tokyo, Japan
| | - Ryuichi Nagashima
- Department of Microbiology and Immunology, Showa University School of Medicine, Tokyo, Japan
| | - Masayuki Iyoda
- Department of Microbiology and Immunology, Showa University School of Medicine, Tokyo, Japan
- Department of Medicine, Division of Nephrology, Showa University School of Medicine, Tokyo, Japan
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Martín Almazán N, Sala BM, Sandalova T, Sun Y, Resink T, Cichocki F, Söderberg-Nauclér C, Miller JS, Achour A, Sarhan D. Non-classical HLA-E restricted CMV 15-mer peptides are recognized by adaptive NK cells and induce memory responses. Front Immunol 2023; 14:1230718. [PMID: 37809084 PMCID: PMC10552778 DOI: 10.3389/fimmu.2023.1230718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 09/01/2023] [Indexed: 10/10/2023] Open
Abstract
Introduction Human cytomegalovirus (HCMV) reactivation causes complications in immunocompromised patients after hematopoietic stem cell transplantation (HSCT), significantly increasing morbidity and mortality. Adaptive Natural Killer (aNK) cells undergo a persistent reconfiguration in response to HCMV reactivation; however, the exact role of aNK cell memory in HCMV surveillance remains elusive. Methods We employed mass spectrometry and computational prediction approaches to identify HLA-E-restricted HCMV peptides that can elucidate aNK cell responses. We also used the K562 cell line transfected with HLA-E0*0103 for specific peptide binding and blocking assays. Subsequently, NK cells were cocultured with dendritic cells (DCs) loaded with each of the identified peptides to examine aNK and conventional (c)NK cell responses. Results Here, we discovered three unconventional HLA-E-restricted 15-mer peptides (SEVENVSVNVHNPTG, TSGSDSDEELVTTER, and DSDEELVTTERKTPR) derived from the HCMV pp65-protein that elicit aNK cell memory responses restricted to HCMV. aNK cells displayed memory responses towards HMCV-infected cells and HCMV-seropositive individuals when primed by DCs loaded with each of these peptides and predicted 9-mer versions. Blocking the interaction between HLA-E and the activation NKG2C receptor but not the inhibitory NKG2A receptor abolished these specific recall responses. Interestingly, compared to the HLA-E complex with the leader peptide VMAPRTLIL, HLA-E complexes formed with each of the three identified peptides significantly changed the surface electrostatic potential to highly negative. Furthermore, these peptides do not comprise the classical HLA-E-restriction motifs. Discussion These findings suggest a differential binding to NKG2C compared to HLA-E complexes with classical leader peptides that may result in the specific activation of aNK cells. We then designed six nonameric peptides based on the three discovered peptides that could elicit aNK cell memory responses to HCMV necessary for therapeutic inventions. The results provide novel insights into HLA-E-mediated signaling networks that mediate aNK cell recall responses and maximize their reactivity.
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Affiliation(s)
- Nerea Martín Almazán
- Department of Laboratory Medicine, Division of Pathology, Karolinska Institute, Stockholm, Sweden
| | - Benedetta Maria Sala
- Science for Life Laboratory, Department of Medicine, Karolinska Institute, Stockholm, Sweden
- Division of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Tatyana Sandalova
- Science for Life Laboratory, Department of Medicine, Karolinska Institute, Stockholm, Sweden
- Division of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Yizhe Sun
- Department of Laboratory Medicine, Division of Pathology, Karolinska Institute, Stockholm, Sweden
| | - Tom Resink
- Science for Life Laboratory, Department of Medicine, Karolinska Institute, Stockholm, Sweden
- Division of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Frank Cichocki
- Division of Hematology, Oncology and Transplantation, University of Minnesota Masonic Cancer Center, Minneapolis, MN, United States
| | - Cecilia Söderberg-Nauclér
- Department of Medicine, Microbial Pathogenesis Unit, Karolinska Institute, Stockholm, Sweden
- Division of Neurology, Karolinska University Hospital, Stockholm, Sweden
- Institute of Biomedicine, Unit for Infection and immunology, MediCity Research Laboratory, InFLAMES Flagship, University of Turku, Turku, Finland
| | - Jeffrey S Miller
- Division of Hematology, Oncology and Transplantation, University of Minnesota Masonic Cancer Center, Minneapolis, MN, United States
| | - Adnane Achour
- Science for Life Laboratory, Department of Medicine, Karolinska Institute, Stockholm, Sweden
- Division of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Dhifaf Sarhan
- Department of Laboratory Medicine, Division of Pathology, Karolinska Institute, Stockholm, Sweden
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McMahon‑Cole H, Johnson A, Sadat Aghamiri S, Helikar T, Crawford LB. Modeling and Remodeling the Cell: How Digital Twins and HCMV Can Elucidate the Complex Interactions of Viral Latency, Epigenetic Regulation, and Immune Responses. CURRENT CLINICAL MICROBIOLOGY REPORTS 2023; 10:141-151. [PMID: 37901689 PMCID: PMC10601359 DOI: 10.1007/s40588-023-00201-w] [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] [Accepted: 07/12/2023] [Indexed: 10/31/2023]
Abstract
Purpose of Review Human cytomegalovirus (HCMV), while asymptomatic in most, causes significant complications during fetal development, following transplant or in immunosuppressed individuals. The host-virus interactions regulating viral latency and reactivation and viral control of the cellular environment (immune regulation, differentiation, epigenetics) are highly complex. Understanding these processes is essential to controlling infection and can be leveraged as a novel approach for understanding basic cell biology. Recent Findings Immune digital twins (IDTs) are digital simulations integrating knowledge of human immunology, physiology, and patient-specific clinical data to predict individualized immune responses and targeted treatments. Recent studies used IDTs to elucidate mechanisms of T cells, dendritic cells, and epigenetic control-all key to HCMV biology. Summary Here, we discuss how leveraging the unique biology of HCMV and IDTs will clarify immune response dynamics, host-virus interactions, and viral latency and reactivation and serve as a powerful IDT-validation platform for individualized and holistic health management.
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Affiliation(s)
- Hana McMahon‑Cole
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Alicia Johnson
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Sara Sadat Aghamiri
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Tomáš Helikar
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Lindsey B. Crawford
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, USA
- Nebraska Center for Virology, Lincoln, NE, USA
- Nebraska Center for Integrated Biomolecular Communication, Lincoln, NE, USA
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Mahar UR, Jhatial MA, Qazi R, Ahmed U, Ahsan B, Bokhari SWI. Significance of CMV reactivation in non-allogeneic stem cell transplant patients with cancers: experience of single tertiary care cancer institute. Virusdisease 2023; 34:383-388. [PMID: 37780907 PMCID: PMC10533462 DOI: 10.1007/s13337-023-00839-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 08/22/2023] [Indexed: 10/03/2023] Open
Abstract
CMV reactivation is rare in hematological as well as solid organ malignancies in non-allogeneic stem cell transplant settings. An increasing number of patients undergoing active treatment or follow-up and diagnosed with CMV reactivation in recent years prompted us to investigate the risk factors and outcomes of CMV reactivation or disease. This was a hospital-based retrospective study that included 174 cancer patients suspected of CMV reactivation. Among them, forty-one tested positive for CMV viremia. The risk factors for CMV reactivation included the use of steroids in 78% of patients, active cancer in 43.9%, use of a monoclonal antibody rituximab in 31.7%, a history of radiation in 26.8%, and autologous stem cell transplant in 12% of patients. The median age was 36 years, and the most common clinical feature was fever (58.5%; n = 24), followed by GI symptoms (12.1%; n = 5), respiratory symptoms (14.6%; n = 6), cytopenia (7.3%; n = 3), and visual/neurological symptoms (4.8%; n = 2). The mean CMV viral load was 37,332 copies/ml (range: 75.00-633,000.00 copies/ml). Nineteen patients received CMV treatment with an average treatment duration of 81.5 days. The median overall survival was 2 months, with 12.0% of patients alive at 5 years. CMV reactivation is associated with significant morbidity and mortality. We recommend vigilant monitoring of CMV-related symptoms, with a low threshold for testing and treatment, for patients with multiple risk factors for CMV reactivation.
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Affiliation(s)
- Uzma Rasool Mahar
- Department of Medical Oncology, Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH&RC), Lahore, Pakistan
| | - Mussadique Ali Jhatial
- Department of Medical Oncology, Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH&RC), Lahore, Pakistan
| | - Romena Qazi
- Department of Medical Oncology, Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH&RC), Lahore, Pakistan
| | - Usman Ahmed
- Department of Medical Oncology, Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH&RC), Lahore, Pakistan
| | - Bushra Ahsan
- Department of Medical Oncology, Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH&RC), Lahore, Pakistan
| | - Syed Waqas Imam Bokhari
- Department of Medical Oncology, Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH&RC), Lahore, Pakistan
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Zeng J, Cao D, Yang S, Jaijyan DK, Liu X, Wu S, Cruz-Cosme R, Tang Q, Zhu H. Insights into the Transcriptome of Human Cytomegalovirus: A Comprehensive Review. Viruses 2023; 15:1703. [PMID: 37632045 PMCID: PMC10458407 DOI: 10.3390/v15081703] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Human cytomegalovirus (HCMV) is a widespread pathogen that poses significant risks to immunocompromised individuals. Its genome spans over 230 kbp and potentially encodes over 200 open-reading frames. The HCMV transcriptome consists of various types of RNAs, including messenger RNAs (mRNAs), long non-coding RNAs (lncRNAs), circular RNAs (circRNAs), and microRNAs (miRNAs), with emerging insights into their biological functions. HCMV mRNAs are involved in crucial viral processes, such as viral replication, transcription, and translation regulation, as well as immune modulation and other effects on host cells. Additionally, four lncRNAs (RNA1.2, RNA2.7, RNA4.9, and RNA5.0) have been identified in HCMV, which play important roles in lytic replication like bypassing acute antiviral responses, promoting cell movement and viral spread, and maintaining HCMV latency. CircRNAs have gained attention for their important and diverse biological functions, including association with different diseases, acting as microRNA sponges, regulating parental gene expression, and serving as translation templates. Remarkably, HCMV encodes miRNAs which play critical roles in silencing human genes and other functions. This review gives an overview of human cytomegalovirus and current research on the HCMV transcriptome during lytic and latent infection.
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Affiliation(s)
- Janine Zeng
- Department of Microbiology and Molecular Genetics, New Jersey Medical School, Rutgers University, 225 Warren Street, Newark, NJ 070101, USA
| | - Di Cao
- Department of Pain Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen 518052, China
| | - Shaomin Yang
- Department of Pain Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen 518052, China
| | - Dabbu Kumar Jaijyan
- Department of Microbiology and Molecular Genetics, New Jersey Medical School, Rutgers University, 225 Warren Street, Newark, NJ 070101, USA
| | - Xiaolian Liu
- Institute of Pathogenic Organisms, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Songbin Wu
- Department of Pain Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen 518052, China
| | - Ruth Cruz-Cosme
- Department of Microbiology, Howard University College of Medicine, 520 W Street NW, Washington, DC 20059, USA
| | - Qiyi Tang
- Department of Microbiology, Howard University College of Medicine, 520 W Street NW, Washington, DC 20059, USA
| | - Hua Zhu
- Department of Microbiology and Molecular Genetics, New Jersey Medical School, Rutgers University, 225 Warren Street, Newark, NJ 070101, USA
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Palma S, Forli F, Rossi C, Filice R, D'adamo C, Roversi MF, Monzani D, Lorenzoni F, Botti C, Berrettini S, Bruschini L, Berardi A, Genovese E, Canelli R. The Audiological Follow-Up of Children with Symptomatic Congenital Cytomegalovirus Infection: An Experience in Two Italian Centers. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1136. [PMID: 37508638 PMCID: PMC10378266 DOI: 10.3390/children10071136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/22/2023] [Accepted: 06/28/2023] [Indexed: 07/30/2023]
Abstract
BACKGROUND Congenital cytomegalovirus (cCMV) infection is the leading cause of non-hereditary sensorineural hearing loss in children. While about 10% of children reportedly display symptoms at birth, 85-90% of cCMV infection cases are asymptomatic. However, 10-15% of these asymptomatic infants may later develop hearing, visual, or neurodevelopmental impairments. This study aimed to evaluate the impact of cCMV infection on newborns' hearing function with a particular emphasis on progressive and late-onset cases. METHODS This study is a retrospective chart analysis with longitudinal character and was conducted in two Italian centers: Center 1 (from 1 November 2007 to 31 December 2021) and Center 2 (from 1 January 2012 to 31 December 2021). Data collected included newborn hearing screening results, characterization of hearing loss (unilateral/bilateral, degree of impairment), and audiological follow-up. RESULTS The cohort consisted of 103 children (42% males, 58% females). In total, 28 children presented with hearing impairment; 71.4% (20 out of 28) of the cases of hearing loss were severe/profound, with 35.7% of the cases due to unilateral hearing loss. Out of twenty-eight, six experienced progression of hearing loss and four had late-onset hearing loss. CONCLUSIONS In the absence of universal cCMV screening, hearing screening at birth for cCMV remains a critical factor for early diagnosis. A significant percentage of children affected by cCMV with normal audiological evaluations at birth is easily lost to follow-up. Close collaboration between neonatologists, pediatricians, and audiological services is fundamental to ensure timely diagnosis and treatment of cCMV-related hearing loss.
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Affiliation(s)
- Silvia Palma
- Audiology, Primary Care Department, AUSL of Modena, 41100 Modena, Italy
| | - Francesca Forli
- Department of Medical and Surgical Sciences for Children and Adults, Otorhinolaryngology Unit, Azienda Ospedaliero-Universitaria, 56121 Pisa, Italy
| | - Cecilia Rossi
- Department of Neonatal Intensive Care Unit, Neonatal Intensive Care Unit, Azienda Ospedaliero-Universitaria of Modena, 41125 Modena, Italy
| | - Riccardo Filice
- Department of Neonatal Intensive Care Unit, Neonatal Intensive Care Unit, Azienda Ospedaliero-Universitaria of Modena, 41125 Modena, Italy
| | - Concetta D'adamo
- Department of Medical and Surgical Sciences for Children and Adults, Otorhinolaryngology Unit, Azienda Ospedaliero-Universitaria of Modena, 41125 Modena, Italy
| | - Maria Federica Roversi
- Department of Neonatal Intensive Care Unit, Neonatal Intensive Care Unit, Azienda Ospedaliero-Universitaria of Modena, 41125 Modena, Italy
| | - Daniele Monzani
- ENT, Department of Surgical Sciences, Dentistry, Gynaecology and Paediatrics, University of Verona, Borgo Roma Hospital, 37100 Verona, Italy
| | - Francesca Lorenzoni
- Division of Neonatology and NICU, Department of Clinical and Experimental Medicine, 56124 Pisa, Italy
| | - Cecilia Botti
- PhD Program in Clinical and Experimental Medicine, University of Modena and Reggio Emilia, 21124 Modena, Italy
| | - Stefano Berrettini
- Department of Medical and Surgical Sciences for Children and Adults, Otorhinolaryngology Unit, Azienda Ospedaliero-Universitaria, 56121 Pisa, Italy
| | - Luca Bruschini
- Department of Medical and Surgical Sciences for Children and Adults, Otorhinolaryngology Unit, Azienda Ospedaliero-Universitaria, 56121 Pisa, Italy
| | - Alberto Berardi
- Department of Neonatal Intensive Care Unit, Neonatal Intensive Care Unit, Azienda Ospedaliero-Universitaria of Modena, 41125 Modena, Italy
| | - Elisabetta Genovese
- Department of Medical and Surgical Sciences for Children and Adults, Otorhinolaryngology Unit, Azienda Ospedaliero-Universitaria of Modena, 41125 Modena, Italy
| | - Rachele Canelli
- Department of Medical and Surgical Sciences for Children and Adults, Otorhinolaryngology Unit, Azienda Ospedaliero-Universitaria, 56121 Pisa, Italy
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Ribeiro RV, Samman A, Wang A, Wang S, Martinu T, Keshavjee S, Singer LG, Kumar D, Humar A, Cypel M. Incidence of post-transplant cytomegalovirus viremia in patients receiving lungs after ex vivo lung perfusion. JTCVS OPEN 2023; 14:590-601. [PMID: 37425481 PMCID: PMC10328819 DOI: 10.1016/j.xjon.2023.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 02/07/2023] [Accepted: 02/13/2023] [Indexed: 07/11/2023]
Abstract
Objectives Cytomegalovirus infection after lung transplant is associated with increased morbidity and mortality. Inflammation, infection, and longer ischemic times are important risk factors for cytomegalovirus infection. Ex vivo lung perfusion has helped to successfully increase the use of high-risk donors over the last decade. However, the impact of ex vivo lung perfusion on post-transplant cytomegalovirus infection is unknown. Methods We performed a retrospective analysis of all adult lung transplant recipients from 2010 to 2020. The primary end point was comparison of cytomegalovirus viremia between patients who received ex vivo lung perfusion donor lungs and patients who received non-ex vivo lung perfusion donor lungs. Cytomegalovirus viremia was defined as cytomegalovirus viral load greater than 1000 IU/mL within 2 years post-transplant. Secondary end points were the time from lung transplant to cytomegalovirus viremia, peak cytomegalovirus viral load, and survival. Outcomes were also compared between the different donor recipient cytomegalovirus serostatus matching groups. Results Included were 902 recipients of non-ex vivo lung perfusion lungs and 403 recipients of ex vivo lung perfusion lungs. There was no significant difference in the distribution of the cytomegalovirus serostatus matching groups. A total of 34.6% of patients in the non-ex vivo lung perfusion group developed cytomegalovirus viremia, as did 30.8% in the ex vivo lung perfusion group (P = .17). There was no difference in time to viremia, peak viral loads, or survival when comparing both groups. Likewise, all outcomes were comparable in the non-ex vivo lung perfusion and ex vivo lung perfusion groups within each serostatus matching group. Conclusions The practice of using more injured donor organs via ex vivo lung perfusion has not affected cytomegalovirus viremia rates and severity in lung transplant recipients in our center.
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Affiliation(s)
- Rafaela V.P. Ribeiro
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Anas Samman
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Aizhou Wang
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Stella Wang
- Biostatistics Research Unit, University Health Network, Toronto, Ontario, Canada
| | - Tereza Martinu
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
- Toronto Lung Transplant Program, Ajmera Transplant Centre, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
- University of Toronto, Toronto, Ontario, Canada
| | - Shaf Keshavjee
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
- Toronto Lung Transplant Program, Ajmera Transplant Centre, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
- University of Toronto, Toronto, Ontario, Canada
| | - Lianne G. Singer
- Toronto Lung Transplant Program, Ajmera Transplant Centre, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
- University of Toronto, Toronto, Ontario, Canada
| | - Deepali Kumar
- Toronto Lung Transplant Program, Ajmera Transplant Centre, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
- University of Toronto, Toronto, Ontario, Canada
| | - Atul Humar
- Toronto Lung Transplant Program, Ajmera Transplant Centre, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
- University of Toronto, Toronto, Ontario, Canada
| | - Marcelo Cypel
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
- Toronto Lung Transplant Program, Ajmera Transplant Centre, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
- University of Toronto, Toronto, Ontario, Canada
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Bošnjak B, Lueder Y, Messerle M, Förster R. Imaging cytomegalovirus infection and ensuing immune responses. Curr Opin Immunol 2023; 82:102307. [PMID: 36996701 DOI: 10.1016/j.coi.2023.102307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 02/21/2023] [Accepted: 02/22/2023] [Indexed: 03/30/2023]
Abstract
Cytomegaloviruses (CMVs) possess exquisite mechanisms enabling colonization, replication, and release allowing spread to new hosts. Moreover, they developed ways to escape the control of the host immune responses and hide latently within the host cells. Here, we outline studies that visualized individual CMV-infected cells using reporter viruses. These investigations provided crucial insights into all steps of CMV infection and mechanisms the host's immune response struggles to control it. Uncovering complex viral and cellular interactions and underlying molecular as well as immunological mechanisms are a prerequisite for the development of novel therapeutic interventions for successful treatment of CMV-related pathologies in neonates and transplant patients.
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34
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Lodha M, Muchsin I, Jürges C, Juranic Lisnic V, L'Hernault A, Rutkowski AJ, Prusty BK, Grothey A, Milic A, Hennig T, Jonjic S, Friedel CC, Erhard F, Dölken L. Decoding murine cytomegalovirus. PLoS Pathog 2023; 19:e1010992. [PMID: 37172056 DOI: 10.1371/journal.ppat.1010992] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 05/24/2023] [Accepted: 03/17/2023] [Indexed: 05/14/2023] Open
Abstract
The genomes of both human cytomegalovirus (HCMV) and murine cytomegalovirus (MCMV) were first sequenced over 20 years ago. Similar to HCMV, the MCMV genome had initially been proposed to harbor ≈170 open reading frames (ORFs). More recently, omics approaches revealed HCMV gene expression to be substantially more complex comprising several hundred viral ORFs. Here, we provide a state-of-the art reannotation of lytic MCMV gene expression based on integrative analysis of a large set of omics data. Our data reveal 365 viral transcription start sites (TiSS) that give rise to 380 and 454 viral transcripts and ORFs, respectively. The latter include >200 small ORFs, some of which represented the most highly expressed viral gene products. By combining TiSS profiling with metabolic RNA labelling and chemical nucleotide conversion sequencing (dSLAM-seq), we provide a detailed picture of the expression kinetics of viral transcription. This not only resulted in the identification of a novel MCMV immediate early transcript encoding the m166.5 ORF, which we termed ie4, but also revealed a group of well-expressed viral transcripts that are induced later than canonical true late genes and contain an initiator element (Inr) but no TATA- or TATT-box in their core promoters. We show that viral upstream ORFs (uORFs) tune gene expression of longer viral ORFs expressed in cis at translational level. Finally, we identify a truncated isoform of the viral NK-cell immune evasin m145 arising from a viral TiSS downstream of the canonical m145 mRNA. Despite being ≈5-fold more abundantly expressed than the canonical m145 protein it was not required for downregulating the NK cell ligand, MULT-I. In summary, our work will pave the way for future mechanistic studies on previously unknown cytomegalovirus gene products in an important virus animal model.
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Affiliation(s)
- Manivel Lodha
- Institute for Virology and Immunobiology, Julius-Maximilians-Universität-Würzburg, Würzburg, Germany
| | - Ihsan Muchsin
- Institute for Virology and Immunobiology, Julius-Maximilians-Universität-Würzburg, Würzburg, Germany
| | - Christopher Jürges
- Institute for Virology and Immunobiology, Julius-Maximilians-Universität-Würzburg, Würzburg, Germany
| | - Vanda Juranic Lisnic
- Department of Histology and Embryology, Faculty of Medicine, University of Rijeka, Rijeka, Croatia
- Center for Proteomics, Faculty of Medicine, University of Rijeka, Rijeka, Croatia
| | - Anne L'Hernault
- Department of Medicine, University of Cambridge, Addenbrookes Hospital, Cambridge, United Kingdom
| | - Andrzej J Rutkowski
- Department of Medicine, University of Cambridge, Addenbrookes Hospital, Cambridge, United Kingdom
| | - Bhupesh K Prusty
- Institute for Virology and Immunobiology, Julius-Maximilians-Universität-Würzburg, Würzburg, Germany
| | - Arnhild Grothey
- Institute for Virology and Immunobiology, Julius-Maximilians-Universität-Würzburg, Würzburg, Germany
| | - Andrea Milic
- Institute for Virology and Immunobiology, Julius-Maximilians-Universität-Würzburg, Würzburg, Germany
| | - Thomas Hennig
- Institute for Virology and Immunobiology, Julius-Maximilians-Universität-Würzburg, Würzburg, Germany
| | - Stipan Jonjic
- Department of Histology and Embryology, Faculty of Medicine, University of Rijeka, Rijeka, Croatia
- Center for Proteomics, Faculty of Medicine, University of Rijeka, Rijeka, Croatia
| | - Caroline C Friedel
- Institute of Informatics, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Florian Erhard
- Institute for Virology and Immunobiology, Julius-Maximilians-Universität-Würzburg, Würzburg, Germany
| | - Lars Dölken
- Institute for Virology and Immunobiology, Julius-Maximilians-Universität-Würzburg, Würzburg, Germany
- Department of Medicine, University of Cambridge, Addenbrookes Hospital, Cambridge, United Kingdom
- Helmholtz Institute for RNA-based Infection Research (HIRI), Würzburg, Germany
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Sheng Q, Sun Y, Zhai R, Fan X, Ying Y, Liu Z, Kong X. Murine cytomegalovirus localization and uveitic cell infiltration might both contribute to trabecular meshwork impairment in Posner-Schlossman syndrome: Evidence from an open-angle rat model. Exp Eye Res 2023; 231:109477. [PMID: 37137438 DOI: 10.1016/j.exer.2023.109477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/22/2023] [Accepted: 04/16/2023] [Indexed: 05/05/2023]
Abstract
As a special type of glaucoma, Posner-Schlossman syndrome (PSS) is characterized by elevated intraocular pressure (IOP) and anterior uveitis. Cytomegalovirus (CMV) anterior chamber infection has now been considered the leading cause of PSS. We used murine CMV (MCMV) intracameral injection to establish a rat model manifested in IOP elevation and mild anterior uveitis, much like PSS; viral localization and gene expression at various time points and inflammatory cell infiltration derived from innate and adaptive immunity were investigated, as well as pathogenetic changes of the trabecular meshwork (TM). The IOP and uveitic manifestations peaked at 24 h post-infection (p.i.) and returned to normal after 96 h; the iridocorneal angle remained open consistently. At 24 h p.i., leucocytes gathered at the chamber angle. Maximum transcription of MCMV immediate early 1 (IE1) was reached at 24 h in the cornea and 48 h in the iris and ciliary body. MCMV localized in aqueous humor outflow facilities and the iris from 24 h to 28 d p.i. and was detected by in situ hybridization, though it did not transcribe after 7 d p.i. TM and iris pigment epithelial cells harboring viral inclusion bodies and autophagosomes were present at 28 d p.i. These findings shed light on how and where innate and adaptive immunity reacted after MCMV was found and transcribed in a highly ordered cascade, as well as pathogenetic changes in TM as a result of virus and uveitis behaviors.
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Affiliation(s)
- Qilian Sheng
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, 200031, China; National Health Commission Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, 200031, China; Shanghai Key Laboratory of Visual Impairment and Restoration, 83 Fenyang Rd., 200031, Shanghai, China
| | - Yanan Sun
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, 200031, China; National Health Commission Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, 200031, China; Shanghai Key Laboratory of Visual Impairment and Restoration, 83 Fenyang Rd., 200031, Shanghai, China
| | - Ruyi Zhai
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, 200031, China; National Health Commission Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, 200031, China; Shanghai Key Laboratory of Visual Impairment and Restoration, 83 Fenyang Rd., 200031, Shanghai, China
| | - Xintong Fan
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, 200031, China; National Health Commission Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, 200031, China; Shanghai Key Laboratory of Visual Impairment and Restoration, 83 Fenyang Rd., 200031, Shanghai, China
| | - Yue Ying
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, 200031, China; National Health Commission Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, 200031, China; Shanghai Key Laboratory of Visual Impairment and Restoration, 83 Fenyang Rd., 200031, Shanghai, China
| | - Zhijun Liu
- Department of Medical Microbiology, Weifang Medical University, Weifang, 261053, China.
| | - Xiangmei Kong
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, 200031, China; National Health Commission Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, 200031, China; Shanghai Key Laboratory of Visual Impairment and Restoration, 83 Fenyang Rd., 200031, Shanghai, China.
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36
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Labetoulle M, Boutolleau D, Burrel S, Haigh O, Rousseau A. Herpes simplex virus, varicella-zoster virus and cytomegalovirus keratitis: Facts for the clinician. Ocul Surf 2023; 28:336-350. [PMID: 34314898 DOI: 10.1016/j.jtos.2021.07.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/05/2021] [Accepted: 07/18/2021] [Indexed: 01/16/2023]
Abstract
Keratitis due to Herpes simplex virus (HSK), Varicella-Zoster virus (VZK) and Cytomegalovirus remains a frequent source of concern for many ophthalmologists. They are a frequent cause of emergency consultations at eye care centers and carry the risk of permanent loss of visual acuity or visual quality and/or chronic neurotrophic keratitis, resulting in a significant decrease in the quality of life. HSK and VZK can affect the corneal epithelium, stroma, or endothelium or a combination of layers. In contrast, most cases of CMV keratitis present as isolated endothelitis (CMVE), a clinical entity that has been described within the last 2 decades. These three types of viral keratitis are characterized by a high frequency of recurrences and each new episode increases the risk of sequelae. Hence, ophthalmologists must adapt the treatment to the clinical presentation of each recurrent episode in order to mitigate the immediate consequences of viral replication and the immune response on corneal transparency. In patients with frequent recurrences, preventive long-term antiviral treatment is strongly recommended. However, in some rare cases, continuous exposure to antivirals may promote the emergence of resistant viral strains, which can be difficult to manage. In the future, the introduction of new antiviral drugs, with differing modes of action compared to current medical therapy, could be an alternative until a truly effective preventive solution, such as a vaccine, is available.
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Affiliation(s)
- Marc Labetoulle
- Ophthalmologie Department, Hôpital Bicêtre, APHP, Université Paris Sud, 94275, Le Kremlin-Bicêtre, France; Center for Immunology of Viral Infections and Autoimmune Diseases (IMVA), IDMIT Infrastructure, CEA, Université Paris Sud, Inserm U1184 18 Route Du Panorama, 92265, Fontenay-aux-Roses Cedex, France.
| | - David Boutolleau
- Virology Department, Hôpital Pitié-Salpétrière, APHP, National Reference Center for Herperviruses (Associated Laboratory), Paris, France; Sorbonne University, INSERM UMR-S 1136, Pierre Louis Institute of Epidemiology and Public Health (IPLESP), Paris, France
| | - Sonia Burrel
- Virology Department, Hôpital Pitié-Salpétrière, APHP, National Reference Center for Herperviruses (Associated Laboratory), Paris, France; Sorbonne University, INSERM UMR-S 1136, Pierre Louis Institute of Epidemiology and Public Health (IPLESP), Paris, France
| | - Oscar Haigh
- Center for Immunology of Viral Infections and Autoimmune Diseases (IMVA), IDMIT Infrastructure, CEA, Université Paris Sud, Inserm U1184 18 Route Du Panorama, 92265, Fontenay-aux-Roses Cedex, France
| | - Antoine Rousseau
- Ophthalmologie Department, Hôpital Bicêtre, APHP, Université Paris Sud, 94275, Le Kremlin-Bicêtre, France; Center for Immunology of Viral Infections and Autoimmune Diseases (IMVA), IDMIT Infrastructure, CEA, Université Paris Sud, Inserm U1184 18 Route Du Panorama, 92265, Fontenay-aux-Roses Cedex, France
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37
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Kelley EJ, Henson SN, Rahee F, Boyle AS, Engelbrektson AL, Nelson GA, Mead HL, Anderson NL, Razavi M, Yip R, Ladner JT, Scriba TJ, Altin JA. Virome-wide detection of natural infection events and the associated antibody dynamics using longitudinal highly-multiplexed serology. Nat Commun 2023; 14:1783. [PMID: 36997517 PMCID: PMC10062260 DOI: 10.1038/s41467-023-37378-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 03/07/2023] [Indexed: 04/03/2023] Open
Abstract
Current methods for detecting infections either require a sample collected from an actively infected site, are limited in the number of agents they can query, and/or yield no information on the immune response. Here we present an approach that uses temporally coordinated changes in highly-multiplexed antibody measurements from longitudinal blood samples to monitor infection events at sub-species resolution across the human virome. In a longitudinally-sampled cohort of South African adolescents representing >100 person-years, we identify >650 events across 48 virus species and observe strong epidemic effects, including high-incidence waves of Aichivirus A and the D68 subtype of Enterovirus D earlier than their widespread circulation was appreciated. In separate cohorts of adults who were sampled at higher frequency using self-collected dried blood spots, we show that such events temporally correlate with symptoms and transient inflammatory biomarker elevations, and observe the responding antibodies to persist for periods ranging from ≤1 week to >5 years. Our approach generates a rich view of viral/host dynamics, supporting novel studies in immunology and epidemiology.
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Affiliation(s)
- Erin J Kelley
- The Translational Genomics Research Institute (TGen), Flagstaff and Phoenix, AZ, USA
| | - Sierra N Henson
- The Translational Genomics Research Institute (TGen), Flagstaff and Phoenix, AZ, USA
| | - Fatima Rahee
- The Translational Genomics Research Institute (TGen), Flagstaff and Phoenix, AZ, USA
| | - Annalee S Boyle
- The Translational Genomics Research Institute (TGen), Flagstaff and Phoenix, AZ, USA
| | - Anna L Engelbrektson
- The Translational Genomics Research Institute (TGen), Flagstaff and Phoenix, AZ, USA
| | - Georgia A Nelson
- The Translational Genomics Research Institute (TGen), Flagstaff and Phoenix, AZ, USA
| | - Heather L Mead
- The Translational Genomics Research Institute (TGen), Flagstaff and Phoenix, AZ, USA
| | | | | | - Richard Yip
- SISCAPA Assay Technologies, Inc., Washington, DC, USA
| | - Jason T Ladner
- The Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, AZ, USA
| | - Thomas J Scriba
- South African Tuberculosis Vaccine Initiative and Institute of Infectious Disease and Molecular Medicine, Division of Immunology, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - John A Altin
- The Translational Genomics Research Institute (TGen), Flagstaff and Phoenix, AZ, USA.
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38
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Huang CY, Cheng YC, Hwang YS, Kang EYC, Hsiao CH. Cytomegalovirus Glycoprotein B Genotype in Patients with Anterior Segment Infection. Int J Mol Sci 2023; 24:ijms24076304. [PMID: 37047276 PMCID: PMC10094332 DOI: 10.3390/ijms24076304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/19/2023] [Accepted: 03/23/2023] [Indexed: 03/30/2023] Open
Abstract
(1) The glycoprotein B (gB) on the viral envelope, encoded by the most widely characterised polymorphic gene, gpUL55, is responsible for cytomegalovirus (CMV) entry into the host and could serve as a potential marker of pathogenicity. The aim of the present study is to investigate the distribution of the CMV gB genotype in anterior segment infection in Taiwan and its correlation with clinical manifestations and outcomes. (2) Fifty-seven patients with CMV anterior segment infection were identified according to clinical features and positivity for CMV DNA in aqueous humour samples. CMV gB genotyping was performed through polymerase chain reaction assays. Patients’ medical records were retrospectively reviewed. (3) Among the 57 aqueous humour samples tested for gB, 40 (70.28%) had multiple gB genotypes, and only 17 (29.82%) had a single gB genotype. Compared with single-genotype infection, multiple-genotype infection was correlated with higher CMV loads (p < 0.001) but not correlated with outcome. A higher proportion of patients with the gB3 genotype had received filtering surgery before antiviral treatment than those without the gB3 genotype (p = 0.046). (4) Multiple-genotype infection was highly prevalent in CMV anterior segment infection in Taiwan, and gB1 and gB3 were predominant. Multiple-genotype infection was correlated with higher CMV loads but not with specific clinical manifestations or prognostic outcomes. The gB3 genotype may be correlated with poor intraocular pressure control.
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39
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Kyaw T, Drummond G, Bobik A, Peter K. Myocarditis: causes, mechanisms, and evolving therapies. Expert Opin Ther Targets 2023; 27:225-238. [PMID: 36946552 DOI: 10.1080/14728222.2023.2193330] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
INTRODUCTION Myocarditis is a severe lymphocyte-mediated inflammatory disorder of the heart, mostly caused by viruses and immune checkpoint inhibitors (ICIs). Recently, myocarditis as a rare adverse event of mRNA vaccines for SARS-CoV-2 has caused global attention. The clinical consequences of myocarditis can be very severe, but specific treatment options are lacking or not yet clinically proven. AREAS COVERED This paper offers a brief overview of the biology of viruses that frequently cause myocarditis, focusing on mechanisms important for viral entry and replication following host infection. Current and new potential therapeutic targets/strategies especially for viral myocarditis are reviewed systematically. In particular, the immune system in myocarditis is dissected with respect to infective viral and non-infective, ICI-induced myocarditis. EXPERT OPINION Vaccination is an excellent emerging preventative strategy for viral myocarditis, but most vaccines still require further development. Anti-viral treatments that inhibit viral replication need to be considered following viral infection in host myocardium, as lower viral load reduces inflammation severity. Understanding how the immune system continues to damage the heart even after viral clearance will define novel therapeutic targets/strategies. We propose that viral myocarditis can be best treated using a combination of antiviral agents and immunotherapies that control cytotoxic T cell activity.
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Affiliation(s)
- Tin Kyaw
- Inflammation and Cardiovascular Disease Laboratory, Baker Heart and Diabetes Institute
- Centre for Inflammatory Diseases, Monash Medical Centre, Monash University, Melbourne, Australia
- Department of Cardiometabolic Health, University of Melbourne Melbourne Australia
| | - Grant Drummond
- Department of Microbiology, Anatomy, Physiology and Pharmacology, La Trobe University Melbourne Australia
- Centre for Cardiovascular Biology and Disease Research, La Trobe University, Melbourne, Australia
| | - Alex Bobik
- Inflammation and Cardiovascular Disease Laboratory, Baker Heart and Diabetes Institute
- Centre for Inflammatory Diseases, Monash Medical Centre, Monash University, Melbourne, Australia
- Department of Cardiometabolic Health, University of Melbourne Melbourne Australia
- Centre for Cardiovascular Biology and Disease Research, La Trobe University, Melbourne, Australia
- Heart Centre, Alfred Hospital, Melbourne, Australia
| | - Karlheinz Peter
- Inflammation and Cardiovascular Disease Laboratory, Baker Heart and Diabetes Institute
- Department of Cardiometabolic Health, University of Melbourne Melbourne Australia
- Department of Microbiology, Anatomy, Physiology and Pharmacology, La Trobe University Melbourne Australia
- Heart Centre, Alfred Hospital, Melbourne, Australia
- Department of Immunology, Monash University Melbourne Australia
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40
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Griffiths ME, Meza DK, Haydon DT, Streicker DG. Inferring the disruption of rabies circulation in vampire bat populations using a betaherpesvirus-vectored transmissible vaccine. Proc Natl Acad Sci U S A 2023; 120:e2216667120. [PMID: 36877838 PMCID: PMC10089182 DOI: 10.1073/pnas.2216667120] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 01/25/2023] [Indexed: 03/08/2023] Open
Abstract
Transmissible vaccines are an emerging biotechnology that hold prospects to eliminate pathogens from wildlife populations. Such vaccines would genetically modify naturally occurring, nonpathogenic viruses ("viral vectors") to express pathogen antigens while retaining their capacity to transmit. The epidemiology of candidate viral vectors within the target wildlife population has been notoriously challenging to resolve but underpins the selection of effective vectors prior to major investments in vaccine development. Here, we used spatiotemporally replicated deep sequencing to parameterize competing epidemiological mechanistic models of Desmodus rotundus betaherpesvirus (DrBHV), a proposed vector for a transmissible vaccine targeting vampire bat-transmitted rabies. Using 36 strain- and location-specific time series of prevalence collected over 6 y, we found that lifelong infections with cycles of latency and reactivation, combined with a high R0 (6.9; CI: 4.39 to 7.85), are necessary to explain patterns of DrBHV infection observed in wild bats. These epidemiological properties suggest that DrBHV may be suited to vector a lifelong, self-boosting, and transmissible vaccine. Simulations showed that inoculating a single bat with a DrBHV-vectored rabies vaccine could immunize >80% of a bat population, reducing the size, frequency, and duration of rabies outbreaks by 50 to 95%. Gradual loss of infectious vaccine from vaccinated individuals is expected but can be countered by inoculating larger but practically achievable proportions of bat populations. Parameterizing epidemiological models using accessible genomic data brings transmissible vaccines one step closer to implementation.
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Affiliation(s)
- Megan E. Griffiths
- Medical Research Council–University of Glasgow Centre for Virus Research, GlasgowG61 1QH, United Kingdom
| | - Diana K. Meza
- School of Biodiversity, One Health and Veterinary Medicine, University of Glasgow, GlasgowG61 1QH, United Kingdom
| | - Daniel T. Haydon
- School of Biodiversity, One Health and Veterinary Medicine, University of Glasgow, GlasgowG61 1QH, United Kingdom
| | - Daniel G. Streicker
- Medical Research Council–University of Glasgow Centre for Virus Research, GlasgowG61 1QH, United Kingdom
- School of Biodiversity, One Health and Veterinary Medicine, University of Glasgow, GlasgowG61 1QH, United Kingdom
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41
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Zhang X, Xu J, Marshall B, Dong Z, Liu Y, Espinosa-Heidmann DG, Zhang M. Transcriptome Analysis of Retinal and Choroidal Pathologies in Aged BALB/c Mice Following Systemic Neonatal Murine Cytomegalovirus Infection. Int J Mol Sci 2023; 24:4322. [PMID: 36901754 PMCID: PMC10001583 DOI: 10.3390/ijms24054322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 02/16/2023] [Accepted: 02/17/2023] [Indexed: 02/24/2023] Open
Abstract
Our previous studies have shown that systemic neonatal murine cytomegalovirus (MCMV) infection of BALB/c mice spread to the eye with subsequent establishment of latency in choroid/RPE. In this study, RNA sequencing (RNA-Seq) analysis was used to determine the molecular genetic changes and pathways affected by ocular MCMV latency. MCMV (50 pfu per mouse) or medium as control were injected intra-peritoneally (i.p.) into BALB/c mice at <3 days after birth. At 18 months post injection, the mice were euthanized, and the eyes were collected and prepared for RNA-Seq. Compared to three uninfected control eyes, we identified 321 differentially expressed genes (DEGs) in six infected eyes. Using the QIAGEN Ingenuity Pathway Analysis (QIAGEN IPA), we identified 17 affected canonical pathways, 10 of which function in neuroretinal signaling, with the majority of DEGs being downregulated, while 7 pathways function in upregulated immune/inflammatory responses. Retinal and epithelial cell death pathways involving both apoptosis and necroptosis were also activated. MCMV ocular latency is associated with upregulation of immune and inflammatory responses and downregulation of multiple neuroretinal signaling pathways. Cell death signaling pathways are also activated and contribute to the degeneration of photoreceptors, RPE, and choroidal capillaries.
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Affiliation(s)
- Xinyan Zhang
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- James and Jean Vision Discovery Institute, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Jinxian Xu
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- James and Jean Vision Discovery Institute, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Brendan Marshall
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Zheng Dong
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Charlie Norwood VA Medical Center, Augusta, GA 30904, USA
| | - Yutao Liu
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- James and Jean Vision Discovery Institute, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Diego G. Espinosa-Heidmann
- James and Jean Vision Discovery Institute, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Department of Ophthamology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Ming Zhang
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- James and Jean Vision Discovery Institute, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
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42
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Forte E, Li M, Ayaloglu Butun F, Hu Q, Borst EM, Schipma MJ, Piunti A, Shilatifard A, Terhune SS, Abecassis M, Meier JL, Hummel M. Critical Role for the Human Cytomegalovirus Major Immediate Early Proteins in Recruitment of RNA Polymerase II and H3K27Ac To an Enhancer-Like Element in Ori Lyt. Microbiol Spectr 2023; 11:e0314422. [PMID: 36645269 PMCID: PMC9927211 DOI: 10.1128/spectrum.03144-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 12/16/2022] [Indexed: 01/17/2023] Open
Abstract
Human cytomegalovirus (HCMV) is an opportunistic pathogen that infects most of the population. The complex 236 kbp genome encodes more than 170 open reading frames, whose expression is temporally regulated by both viral transcriptional regulators and cellular factors that control chromatin and transcription. Here, we have used state of the art genomic technologies to investigate the viral transcriptome in conjunction with 2 key transcriptional regulators: Pol II and H3K27Ac. Although it is well known that the major immediate early (IE) proteins activate early gene expression through both direct and indirect interactions, and that histone modifications play an important role in regulating viral gene expression, the role of the IE proteins in modulating viral chromatin is not fully understood. To address this question, we have used a virus engineered for conditional expression of the IE proteins combined with RNA and Chromatin immunoprecipitation (ChIP) analyses to assess the role of these proteins in modulating both viral chromatin and gene expression. Our results show that (i) there is an enhancer-like element in OriLyt that is extraordinarily enriched in H3K27Ac; (ii) in addition to activation of viral gene expression, the IE proteins play a critical role in recruitment of Pol II and H3K27Ac to this element. IMPORTANCE HCMV is an important human pathogen associated with complications in transplant patients and birth defects. The complex program of viral gene expression is regulated by both viral proteins and host factors. Here, we have investigated the role of the immediate early proteins in regulating the viral epigenome. Our results show that the viral immediate early proteins bring about an enormous enrichment of H3K27Ac marks at the OriLyt RNA4.9 promoter, concomitant with an increase in RNA4.9 expression. This epigenetic characteristic adds importantly to the view that OriLyt has structural and functional characteristics of a strong enhancer that, we now discover, is regulated by IE proteins.
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Affiliation(s)
- Eleonora Forte
- Comprehensive Transplant Center, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Proteomics Center of Excellence, Northwestern University, Evanston, Illinois, USA
| | - Ming Li
- Departments of Internal Medicine and Epidemiology, University of Iowa and Iowa City Veterans Affairs Health Care System, Iowa City, Iowa, USA
| | - Fatma Ayaloglu Butun
- Comprehensive Transplant Center, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Proteomics Center of Excellence, Northwestern University, Evanston, Illinois, USA
| | - Qiaolin Hu
- Departments of Internal Medicine and Epidemiology, University of Iowa and Iowa City Veterans Affairs Health Care System, Iowa City, Iowa, USA
| | - Eva Maria Borst
- Department of Virology, Hannover Medical School, Hannover, Germany
| | - Matthew J. Schipma
- NUSeq Core, Quantitative Data Science Core, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Andrea Piunti
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Ali Shilatifard
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Scott S. Terhune
- Department of Microbiology and Immunology and Biotechnology and Bioengineering Center, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Michael Abecassis
- Comprehensive Transplant Center, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Jeffery L. Meier
- Departments of Internal Medicine and Epidemiology, University of Iowa and Iowa City Veterans Affairs Health Care System, Iowa City, Iowa, USA
| | - Mary Hummel
- Comprehensive Transplant Center, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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Berg C, Rosenkilde MM. Therapeutic targeting of HCMV-encoded chemokine receptor US28: Progress and challenges. Front Immunol 2023; 14:1135280. [PMID: 36860859 PMCID: PMC9968965 DOI: 10.3389/fimmu.2023.1135280] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 01/25/2023] [Indexed: 02/16/2023] Open
Abstract
The pervasive human cytomegalovirus (HCMV) causes significant morbidity in immunocompromised individuals. Treatment using the current standard-of-care (SOC) is limited by severe toxic adverse effects and anti-viral resistance development. Furthermore, they only affect HCMV in its lytic phase, meaning viral disease is not preventable as latent infection cannot be treated and the viral reservoirs persist. The viral chemokine receptor (vCKR) US28 encoded by HCMV has received much attention in recent years. This broad-spectrum receptor has proven to be a desirable target for development of novel therapeutics through exploitation of its ability to internalize and its role in maintaining latency. Importantly, it is expressed on the surface of infected cells during both lytic and latent infection. US28-targeting small molecules, single-domain antibodies, and fusion toxin proteins have been developed for different treatment strategies, e.g. forcing reactivation of latent virus or using internalization of US28 as a toxin shuttle to kill infected cells. These strategies show promise for providing ways to eliminate latent viral reservoirs and prevent HCMV disease in vulnerable patients. Here, we discuss the progress and challenges of targeting US28 to treat HCMV infection and its associated diseases.
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Vezzani G, Pimazzoni S, Ferranti R, Calò S, Monda G, Amendola D, Frigimelica E, Maione D, Cortese M, Merola M. Human immunoglobulins are transported to HCMV viral envelope by viral Fc gamma receptors-dependent and independent mechanisms. Front Microbiol 2023; 13:1106401. [PMID: 36726564 PMCID: PMC9885202 DOI: 10.3389/fmicb.2022.1106401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 12/20/2022] [Indexed: 01/18/2023] Open
Abstract
Human cytomegaloviruses (HCMVs) employ many different mechanisms to escape and subvert the host immune system, including expression of the viral IgG Fcγ receptors (vFcγRs) RL11 (gp34), RL12 (gp95), RL13 (gpRL13), and UL119 (gp68) gene products. The role of vFcγRs in HCMV pathogenesis has been reported to operate in infected cells by interfering with IgG-mediated effector functions. We found that gp34 and gp68 are envelope proteins that bind and internalize human IgGs on the surface of infected cells. Internalized IgGs are then transported on the envelope of viral particles in a vFcR-dependent mechanism. This mechanism is also responsible for the incorporation on the virions of the anti-gH neutralizing antibody MSL-109. Intriguingly, we show that gp68 is responsible for MSL-109 incorporation, but it is dispensable for other anti-HCMV antibodies that do not need this function to be transported on mature virions. HCMV-infected cells grown in presence of anti-HCMV monoclonal antibodies generate a viral progeny still infective and possible to be neutralized. This is the first example of a virus carrying neutralizing IgGs on its surface and their possible role is discussed.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Mirko Cortese
- GSK, Siena, Italy,Department of Environmental Biological and Pharmaceutical Sciences and Technologies, University of Campania “Luigi Vanvitelli”, Caserta, Italy,Mirko Cortese, ✉
| | - Marcello Merola
- GSK, Siena, Italy,Department of Biology, University of Naples Federico II, Naples, Italy,*Correspondence: Marcello Merola, ✉
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Abstract
There is increasingly compelling evidence that microorganisms may play an etiological role in the emergence of mental illness in a subset of the population. Historically, most work has focused on the neurotrophic herpesviruses, herpes simplex virus type 1 (HSV-1), cytomegalovirus (CMV), and Epstein-Barr virus (EBV) as well as the protozoan, Toxoplasma gondii. In this chapter, we provide an umbrella review of this literature and additionally highlight prospective studies that allow more mechanistic conclusions to be drawn. Next, we focus on clinical trials of anti-microbial medications for the treatment of psychiatric disorders. We critically evaluate six trials that tested the impact of anti-herpes medications on inflammatory outcomes in the context of a medical disorder, nine clinical trials utilizing anti-herpetic medications for the treatment of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) or schizophrenia, and four clinical trials utilizing anti-parasitic medications for the treatment of schizophrenia. We then turn our attention to evidence for a gut dysbiosis and altered microbiome in psychiatric disorders, and the potential therapeutic effects of probiotics, including an analysis of more than 10 randomized controlled trials of probiotics in the context of schizophrenia, bipolar disorder (BD), and major depressive disorder (MDD).
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Lee S, Affandi J, Waters S, Price P. Human Cytomegalovirus Infection and Cardiovascular Disease: Current Perspectives. Viral Immunol 2023; 36:13-24. [PMID: 36622943 DOI: 10.1089/vim.2022.0139] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Infections with human cytomegalovirus (HCMV) are often asymptomatic in healthy adults but can be severe in people with a compromised immune system. While several studies have demonstrated associations between cardiovascular disease in older adults and HCMV seropositivity, the underlying mechanisms are unclear. We review evidence published within the last 5 years establishing how HCMV can contribute directly and indirectly to the development and progression of atherosclerotic plaques. We also discuss associations between HCMV infection and cardiovascular outcomes in populations with a high or very high burden of HCMV, including patients with renal or autoimmune disease, transplant recipients, and people living with HIV.
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Affiliation(s)
- Silvia Lee
- Department of Microbiology, Pathwest Laboratory Medicine, Perth, Western Australia, Australia.,Department of Advanced Clinical and Translational Cardiovascular Imaging, Harry Perkins Institute of Medical Research, Murdoch, Western Australia, Australia.,Curtin Medical School and the Curtin Health Innovation Research Institute (CHIRI); Bentley, Western Australia, Australia
| | - Jacquita Affandi
- Curtin School of Population Health; Curtin University, Bentley, Western Australia, Australia
| | - Shelley Waters
- Curtin Medical School and the Curtin Health Innovation Research Institute (CHIRI); Bentley, Western Australia, Australia
| | - Patricia Price
- Curtin Medical School and the Curtin Health Innovation Research Institute (CHIRI); Bentley, Western Australia, Australia
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Rousselière A, Delbos L, Foureau A, Reynaud-Gaubert M, Roux A, Demant X, Le Pavec J, Kessler R, Mornex JF, Messika J, Falque L, Le Borgne A, Boussaud V, Tissot A, Hombourger S, Bressollette-Bodin C, Charreau B. Changes in HCMV immune cell frequency and phenotype are associated with chronic lung allograft dysfunction. Front Immunol 2023; 14:1143875. [PMID: 37187736 PMCID: PMC10175754 DOI: 10.3389/fimmu.2023.1143875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 04/10/2023] [Indexed: 05/17/2023] Open
Abstract
Background Human cytomegalovirus (HCMV) infection is common and often severe in lung transplant recipients (LTRs), and it is a risk factor associated with chronic lung allograft dysfunction (CLAD). The complex interplay between HCMV and allograft rejection is still unclear. Currently, no treatment is available to reverse CLAD after diagnosis, and the identification of reliable biomarkers that can predict the early development of CLAD is needed. This study investigated the HCMV immunity in LTRs who will develop CLAD. Methods This study quantified and phenotyped conventional (HLA-A2pp65) and HLA-E-restricted (HLA-EUL40) anti-HCMV CD8+ T (CD8 T) cell responses induced by infection in LTRs developing CLAD or maintaining a stable allograft. The homeostasis of immune subsets (B, CD4T, CD8 T, NK, and γδT cells) post-primary infection associated with CLAD was also investigated. Results At M18 post-transplantation, HLA-EUL40 CD8 T responses were less frequently found in HCMV+ LTRs (21.7%) developing CLAD (CLAD) than in LTRs (55%) keeping a functional graft (STABLE). In contrast, HLA-A2pp65 CD8 T was equally detected in 45% of STABLE and 47.8% of CLAD LTRs. The frequency of HLA-EUL40 and HLA-A2pp65 CD8 T among blood CD8 T cells shows lower median values in CLAD LTRs. Immunophenotype reveals an altered expression profile for HLA-EUL40 CD8 T in CLAD patients with a decreased expression for CD56 and the acquisition of PD-1. In STABLE LTRs, HCMV primary infection causes a decrease in B cells and inflation of CD8 T, CD57+/NKG2C+ NK, and δ2-γδT cells. In CLAD LTRs, the regulation of B, total CD8 T, and δ2+γδT cells is maintained, but total NK, CD57+/NKG2C+ NK, and δ2-γδT subsets are markedly reduced, while CD57 is overexpressed across T lymphocytes. Conclusions CLAD is associated with significant changes in anti-HCMV immune cell responses. Our findings propose that the presence of dysfunctional HCMV-specific HLA-E-restricted CD8 T cells together with post-infection changes in the immune cell distribution affecting NK and γδT cells defines an early immune signature for CLAD in HCMV+ LTRs. Such a signature may be of interest for the monitoring of LTRs and may allow an early stratification of LTRs at risk of CLAD.
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Affiliation(s)
- Amélie Rousselière
- Nantes Université, CHU Nantes, Inserm, Centre de Recherche Translationnelle en Transplantation et Immunologie, Nantes, France
| | - Laurence Delbos
- Nantes Université, CHU Nantes, Inserm, Centre de Recherche Translationnelle en Transplantation et Immunologie, Nantes, France
| | - Aurore Foureau
- Nantes Université, CHU Nantes, Inserm, Centre de Recherche Translationnelle en Transplantation et Immunologie, Nantes, France
- Nantes Université, CHU Nantes, Service de Pneumologie, Institut du thorax, Nantes, France
| | - Martine Reynaud-Gaubert
- CHU de Marseille, APHM, Hôpital Nord, Service de Pneumologie et Equipe de Transplantation pulmonaire; Marseille, France; Aix-Marseille Université, Marseille, France
| | - Antoine Roux
- Hôpital Foch, Service de pneumologie, Suresnes, France
| | - Xavier Demant
- Hôpital Haut-Lévêque, Service de pneumologie, CHU de Bordeaux, Bordeaux, France
| | - Jérôme Le Pavec
- Service de Pneumologie et de Transplantation Pulmonaire, Groupe Hospitalier Marie-Lannelongue -Paris Saint Joseph, Le Plessis-Robinson, France
- Université Paris-Saclay, Le Kremlin Bicêtre, France
- UMR_S 999, Université Paris–Sud, Inserm, Groupe hospitalier Marie-Lannelongue-Saint Joseph, Le Plessis-Robinson, France
| | - Romain Kessler
- Groupe de transplantation pulmonaire des hôpitaux universitaires de Strasbourg, Inserm-Université de Strasbourg, Strasbourg, France
| | - Jean-François Mornex
- Université de Lyon, Université Lyon1, INRAE, IVPC, Lyon, France
- Hospices Civils de Lyon, GHE, Service de Pneumologie, Inserm, Lyon, France
| | - Jonathan Messika
- APHP, Nord-Université Paris Cité, Hôpital Bichat-Claude Bernard, Service de Pneumologie B et Transplantation Pulmonaire, Paris, France
- Physiopathology and Epidemiology of Respiratory Diseases, UMR1152 INSERM and Université de Paris, Paris, France
| | - Loïc Falque
- Service Hospitalier Universitaire Pneumologie et Physiologie, Pôle Thorax et Vaisseaux, CHU Grenoble Alpes, Grenoble, France
| | | | - Véronique Boussaud
- Service de Pneumologie, Hôpital Européen Georges-Pompidou, Paris, France
| | - Adrien Tissot
- Nantes Université, CHU Nantes, Inserm, Centre de Recherche Translationnelle en Transplantation et Immunologie, Nantes, France
- Nantes Université, CHU Nantes, Service de Pneumologie, Institut du thorax, Nantes, France
| | - Sophie Hombourger
- Nantes Université, CHU Nantes, Inserm, Centre de Recherche Translationnelle en Transplantation et Immunologie, Nantes, France
| | - Céline Bressollette-Bodin
- Nantes Université, CHU Nantes, Inserm, Centre de Recherche Translationnelle en Transplantation et Immunologie, Nantes, France
- CHU Nantes, Nantes Université, Laboratoire de Virologie, Nantes, France
| | - Béatrice Charreau
- Nantes Université, CHU Nantes, Inserm, Centre de Recherche Translationnelle en Transplantation et Immunologie, Nantes, France
- CHU Nantes, Institut de Transplantation Urologie Néphrologie (ITUN), Nantes, France
- *Correspondence: Béatrice Charreau,
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Aldè M, Caputo E, Di Berardino F, Ambrosetti U, Barozzi S, Piatti G, Zanetti D, Pignataro L, Cantarella G. Hearing outcomes in children with congenital cytomegalovirus infection: From management controversies to lack of parents' knowledge. Int J Pediatr Otorhinolaryngol 2023; 164:111420. [PMID: 36563581 DOI: 10.1016/j.ijporl.2022.111420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/27/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Congenital cytomegalovirus (cCMV) is the leading nongenetic cause of sensorineural hearing loss (HL). However, there are no universally accepted approaches to diagnosis, follow-up and treatment. The aim of this study was to evaluate the main characteristics of cCMV-infected children, focusing on their management and long-term hearing outcomes. METHODS This retrospective study included all children with cCMV infection who were referred to a third-level referral audiologic center for a 6-year hearing follow-up. The main information collected from the medical records included gestational age, birth weight, trimester of maternal seroconversion, hearing status at birth and after 6 years, hearing fluctuations, treatment with oral valganciclovir (within the first month of life and for 6 months), use of hearing devices, presence of speech-language delay, motor delay, cognitive delay and balance disorders, awareness of cCMV among parents, and parents' engagement in behaviors that could increase the risk of CMV infection during pregnancy. RESULTS A total of 141 children with cCMV infection (72 males and 69 females; mean gestational age: 37+3 weeks; mean birth weight: 2893 g) were assessed. Overall, 48 children (34.0%) had a diagnosis of speech-language delay, 32 (22.7%) of sensorineural HL (59.4% bilaterally; 50% of profound degree), 18 (12.8%) of motor delay, 16 (11.3%) of balance disorders, and 6 (4.3%) of cognitive delay. Among children with HL, 8 (25.0%) were fitted with hearing aids (5 unilaterally and 3 bilaterally), and 5 (15.6%) had undergone cochlear implantation (1 unilaterally and 4 bilaterally), while a bimodal hearing solution was adopted for 2 (6.3%) patients. Compared to children with asymptomatic cCMV infection, symptomatic children had a higher prevalence of neurological and auditory sequelae (P < 0.01) and bilateral (P = 0.003) and severe-to-profound HL (P = 0.004). Overall, 23 children (16.3%) received oral valganciclovir, and only one of them experienced hearing deterioration. Only 14.9% of mothers and 5% of fathers were aware that cCMV could cause progressive or late-onset HL, and 87.9% of parents (248/282) had engaged in behaviors that increased the risk of CMV infection during pregnancy. CONCLUSION This study confirmed the importance of performing a long audiological follow-up in children diagnosed with cCMV infection due to the possible late-onset, progressive and fluctuating nature of HL. Moreover, the study highlighted many current controversies in preventive (poor prenatal education), diagnostic (routine maternal serological screening) and therapeutic (valganciclovir administered to asymptomatic children) approaches to cCMV infection. More efforts should be made to improve prevention strategies and raise awareness of cCMV infection risks among the population.
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Affiliation(s)
- Mirko Aldè
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy; Audiology Unit, Department of Specialist Surgical Sciences, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
| | - Eliana Caputo
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
| | - Federica Di Berardino
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy; Audiology Unit, Department of Specialist Surgical Sciences, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
| | - Umberto Ambrosetti
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
| | - Stefania Barozzi
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
| | - Gioia Piatti
- Department of Pathophysiology and Transplantation, University of Milan and Unit of Bronchopneumology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
| | - Diego Zanetti
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy; Audiology Unit, Department of Specialist Surgical Sciences, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
| | - Lorenzo Pignataro
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy; Otolaryngology Unit, Department of Specialist Surgical Sciences, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
| | - Giovanna Cantarella
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy; Otolaryngology Unit, Department of Specialist Surgical Sciences, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
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IL-10-Secreting CD8 + T Cells Specific for Human Cytomegalovirus (HCMV): Generation, Maintenance and Phenotype. Pathogens 2022; 11:pathogens11121530. [PMID: 36558866 PMCID: PMC9781655 DOI: 10.3390/pathogens11121530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/08/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022] Open
Abstract
HCMV-specific CD8+ T-cells are potent anti-viral effector cells in HCMV infected individuals, but evidence from other viral infections suggests that CD8+ T-cells can also produce the immunomodulatory cytokine IL-10. In this work we show that there are HCMV-specific IL-10 CD8+ T-cell responses in a cohort of individuals aged 23-76 years of age, predominantly directed against the HCMV proteins known to be expressed during latent infections as well as towards the proteins US3 and pp71. The analysis of HCMV-specific responses established during primary infection has shown that the IL-10 responses to US3 and pp71 HCMV proteins are detectable in the first weeks post infection, but not the responses to latency-associated proteins, and this IL-10 response is produced by both CD8+ and CD4+ T-cells. Phenotyping studies of HCMV-specific IL-10+ CD8+ T-cells show that these are CD45RA+ effector memory cells and co-express CD28 and CD57, however, the expression of the inhibitory receptor PD-1 varied from 90% to 30% between donors. In this study we have described for the first time the HCMV-specific IL-10 CD8+ T-cell responses and have demonstrated their broad specificity and the potential immune modulatory role of the immune response to HCMV latent carriage and periodic reactivation.
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50
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Rousselière A, Gérard N, Delbos L, Guérif P, Giral M, Bressollette-Bodin C, Charreau B. Distinctive phenotype for HLA-E- versus HLA-A2-restricted memory CD8 αβT cells in the course of HCMV infection discloses features shared with NKG2C +CD57 +NK and δ2 -γδT cell subsets. Front Immunol 2022; 13:1063690. [PMID: 36532017 PMCID: PMC9752567 DOI: 10.3389/fimmu.2022.1063690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 11/10/2022] [Indexed: 12/04/2022] Open
Abstract
The human cytomegalovirus (HCMV) triggers both innate and adaptive immune responses, including protective CD8+ αβT cells (CD8T) that contributes to the control of the infection. In addition to CD8T restricted by classical HLA class Ia molecules, HCMV also triggers CD8T recognizing peptides from the HCMV UL40 leader peptide and restricted by HLA-E molecules (HLA-EUL40 CD8T). This study investigated the frequency, phenotype and functions of HLA-EUL40 CD8T in comparison to the immunodominant HLA-A2pp65 CD8T upon acute (primary or secondary infection) or chronic infection in kidney transplant recipients (KTR) and in seropositive (HCMV+) healthy volunteer (HV) hosts. The frequency of hosts with detected HLA-EUL40 CD8T was similar after a primary infection (24%) and during viral latency in HCMV+ HV (26%) and equal to the frequency of HLA-A2pp65 CD8T cells in both conditions (29%). Both CD8T subsets vary from 0.1% to >30% of total circulating CD8T according to the host. Both HLA-EUL40 and HLA-A2pp65 CD8T display a phenotype specific of CD8+ TEMRA (CD45RA+/CCR7-) but HLA-EUL40 CD8T express distinctive level for CD3, CD8 and CD45RA. Tim3, Lag-3, 4-1BB, and to a lesser extend 2B4 are hallmarks for T cell priming post-primary infection while KLRG1 and Tigit are markers for restimulated and long lived HCMV-specific CD8T responses. These cell markers are equally expressed on HLA-EUL40 and HLA-A2pp65 CD8T. In contrast, CD56 and PD-1 are cell markers discriminating memory HLA-E- from HLA-A2-restricted CD8T. Long lived HLA-EUL40 display higher proliferation rate compared to HLA-A2pp65 CD8T consistent with elevated CD57 expression. Finally, a comparative immunoprofiling indicated that HLA-EUL40 CD8T, divergent from HLA-A2pp65 CD8T, share the expression of CD56, CD57, NKG2C, CD158 and the lack of PD-1 with NKG2C+CD57+ NK and δ2-γδT cells induced in response to HCMV and thus defines a common immunopattern for these subsets.
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Affiliation(s)
- Amélie Rousselière
- Nantes Université, CHU Nantes, Inserm, Centre de Recherche Translationnelle en Transplantation et Immunologie, UMR 1064, Nantes, France
| | - Nathalie Gérard
- Nantes Université, CHU Nantes, Inserm, Centre de Recherche Translationnelle en Transplantation et Immunologie, UMR 1064, Nantes, France
| | - Laurence Delbos
- Nantes Université, CHU Nantes, Inserm, Centre de Recherche Translationnelle en Transplantation et Immunologie, UMR 1064, Nantes, France
| | - Pierrick Guérif
- CHU Nantes, Nantes Université, Institut de Transplantation Urologie Néphrologie (ITUN), Nantes, France
| | - Magali Giral
- Nantes Université, CHU Nantes, Inserm, Centre de Recherche Translationnelle en Transplantation et Immunologie, UMR 1064, Nantes, France,CHU Nantes, Nantes Université, Institut de Transplantation Urologie Néphrologie (ITUN), Nantes, France
| | - Céline Bressollette-Bodin
- Nantes Université, CHU Nantes, Inserm, Centre de Recherche Translationnelle en Transplantation et Immunologie, UMR 1064, Nantes, France,CHU Nantes, Nantes Université, Laboratoire de Virologie, Nantes, France
| | - Béatrice Charreau
- Nantes Université, CHU Nantes, Inserm, Centre de Recherche Translationnelle en Transplantation et Immunologie, UMR 1064, Nantes, France,CHU Nantes, Nantes Université, Institut de Transplantation Urologie Néphrologie (ITUN), Nantes, France,*Correspondence: Béatrice Charreau,
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