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Tobias J, Steinberger P, Wilkinson J, Klais G, Kundi M, Wiedermann U. SARS-CoV-2 Vaccines: The Advantage of Mucosal Vaccine Delivery and Local Immunity. Vaccines (Basel) 2024; 12:795. [PMID: 39066432 PMCID: PMC11281395 DOI: 10.3390/vaccines12070795] [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: 06/12/2024] [Revised: 07/10/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024] Open
Abstract
Immunity against respiratory pathogens is often short-term, and, consequently, there is an unmet need for the effective prevention of such infections. One such infectious disease is coronavirus disease 19 (COVID-19), which is caused by the novel Beta coronavirus SARS-CoV-2 that emerged around the end of 2019. The World Health Organization declared the illness a pandemic on 11 March 2020, and since then it has killed or sickened millions of people globally. The development of COVID-19 systemic vaccines, which impressively led to a significant reduction in disease severity, hospitalization, and mortality, contained the pandemic's expansion. However, these vaccines have not been able to stop the virus from spreading because of the restricted development of mucosal immunity. As a result, breakthrough infections have frequently occurred, and new strains of the virus have been emerging. Furthermore, SARS-CoV-2 will likely continue to circulate and, like the influenza virus, co-exist with humans. The upper respiratory tract and nasal cavity are the primary sites of SARS-CoV-2 infection and, thus, a mucosal/nasal vaccination to induce a mucosal response and stop the virus' transmission is warranted. In this review, we present the status of the systemic vaccines, both the approved mucosal vaccines and those under evaluation in clinical trials. Furthermore, we present our approach of a B-cell peptide-based vaccination applied by a prime-boost schedule to elicit both systemic and mucosal immunity.
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Affiliation(s)
- Joshua Tobias
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria
| | - Peter Steinberger
- Division of Immune Receptors and T Cell Activation, Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria;
| | - Joy Wilkinson
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria
| | - Gloria Klais
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria
| | - Michael Kundi
- Department of Environmental Health, Center for Public Health, Medical University of Vienna, 1090 Vienna, Austria;
| | - Ursula Wiedermann
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria
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Payen SH, Adhikari K, Petereit J, Uppal T, Rossetto CC, Verma SC. SARS-CoV-2 superinfection in CD14 + monocytes with latent human cytomegalovirus (HCMV) promotes inflammatory cascade. Virus Res 2024; 345:199375. [PMID: 38642618 PMCID: PMC11061749 DOI: 10.1016/j.virusres.2024.199375] [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: 02/16/2024] [Revised: 04/07/2024] [Accepted: 04/17/2024] [Indexed: 04/22/2024]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the etiologic agent of coronavirus disease 2019 (COVID-19), has posed significant challenges to global health. While much attention has been directed towards understanding the primary mechanisms of SARS-CoV-2 infection, emerging evidence suggests co-infections or superinfections with other viruses may contribute to increased morbidity and mortality, particularly in severe cases of COVID-19. Among viruses that have been reported in patients with SARS-CoV-2, seropositivity for Human cytomegalovirus (HCMV) is associated with increased COVID-19 risk and hospitalization. HCMV is a ubiquitous beta-herpesvirus with a seroprevalence of 60-90 % worldwide and one of the leading causes of mortality in immunocompromised individuals. The primary sites of latency for HCMV include CD14+ monocytes and CD34+ hematopoietic cells. In this study, we sought to investigate SARS-CoV-2 infection of CD14+ monocytes latently infected with HCMV. We demonstrate that CD14+ cells are susceptible and permissive to SARS-CoV-2 infection and detect subgenomic transcripts indicative of replication. To further investigate the molecular changes triggered by SARS-CoV-2 infection in HCMV-latent CD14+ monocytes, we conducted RNA sequencing coupled with bioinformatic differential gene analysis. The results revealed significant differences in cytokine-cytokine receptor interactions and inflammatory pathways in cells superinfected with replication-competent SARS-CoV-2 compared to the heat-inactivated and mock controls. Notably, there was a significant upregulation in transcripts associated with pro-inflammatory response factors and a decrease in anti-inflammatory factors. Taken together, these findings provide a basis for the heightened inflammatory response, offering potential avenues for targeted therapeutic interventions among HCMV-infected severe cases of COVID-19. SUMMARY: COVID-19 patients infected with secondary viruses have been associated with a higher prevalence of severe symptoms. Individuals seropositive for human cytomegalovirus (HCMV) infection are at an increased risk for severe COVID-19 disease and hospitalization. HCMV reactivation has been reported in severe COVID-19 cases with respiratory failure and could be the result of co-infection with SARS-CoV-2 and HCMV. In a cell culture model of superinfection, HCMV has previously been shown to increase infection of SARS-CoV-2 of epithelial cells by upregulating the human angiotensin-converting enzyme-2 (ACE2) receptor. In this study, we utilize CD14+ monocytes, a major cell type that harbors latent HCMV, to investigate co-infection of SARS-CoV-2 and HCMV. This study is a first step toward understanding the mechanism that may facilitate increased COVID-19 disease severity in patients infected with SARS-CoV-2 and HCMV.
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Affiliation(s)
- Shannon Harger Payen
- Reno School of Medicine, Department of Microbiology & Immunology/MS 320, University of Nevada, Reno, NV 89557, United States
| | - Kabita Adhikari
- Reno School of Medicine, Department of Microbiology & Immunology/MS 320, University of Nevada, Reno, NV 89557, United States
| | - Juli Petereit
- Nevada Bioinformatics Center (RRID:SCR_017802), University of Nevada, Reno, NV 89557, United States
| | - Timsy Uppal
- Reno School of Medicine, Department of Microbiology & Immunology/MS 320, University of Nevada, Reno, NV 89557, United States
| | - Cyprian C Rossetto
- Reno School of Medicine, Department of Microbiology & Immunology/MS 320, University of Nevada, Reno, NV 89557, United States
| | - Subhash C Verma
- Reno School of Medicine, Department of Microbiology & Immunology/MS 320, University of Nevada, Reno, NV 89557, United States.
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Li S, Xiao Y, Jia M. Prior cytomegalovirus reactivation may lead to worse bacterial bloodstream infection outcomes in HSCT patients. Transpl Immunol 2024; 84:102038. [PMID: 38518827 DOI: 10.1016/j.trim.2024.102038] [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: 05/22/2023] [Revised: 03/15/2024] [Accepted: 03/15/2024] [Indexed: 03/24/2024]
Abstract
BACKGROUND Cytomegalovirus (CMV) reactivation is common after transplantation, and may further augment natural killer (NK) cell activity, which has a protective role through both innate and adaptive immune responses. Bacterial bloodstream infections (BBSIs) are a common cause of morbidity and mortality in patients following allo-HSCT. Therefore, we hypothesized that CMV reactivation might play a role in the outcomes of patients with BBSI after allo-HSCT. OBJECTIVES We investigated the role of CMV reactivation in the clinical outcomes of patients with BBSI after allo-HSCT. STUDY DESIGN A total of 101 BBSI patients (45 non-CMV reactivation [NCR] and 56 CMV reactivation [CR]) were included in the study following allo-HSCT. Clinical and laboratory findings were reviewed, and differences were tested using the Chi-square (χ2) test. Multivariate Cox regression analysis was used to calculate hazard ratios for between-group comparisons of clinical outcomes. RESULTS CMV reactivation had a negative prognostic impact on the clinical outcomes of BBSI patients following allo-HSCT with regard to the 1-year overall survival time (HR, 3.583; 95% CI, 1.347-9.533; P = 0.011). In 56 BBSI patients with CMV reactivation following allo-HSCT, the 1-year mortality among those in whom CMV was reactivated first (CRF) was significantly elevated (56.5% vs. 18.2%, P = 0.003) compared with patients in whom the BBSIs occurred first (BOF). CONCLUSIONS CMV reactivation in BBSI patients is related to higher mortality 1-year after allo-HSCT. Further studies on a larger cohort are needed to better understanding the mechanism of CMV reactivation influence.
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Affiliation(s)
- Shanshan Li
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Yang Xiao
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Mei Jia
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China.
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Essa S, Safar HA, Raghupathy R. Cytokine responses to major human Cytomegalovirus antigens in mouse model. Cytokine 2024; 176:156546. [PMID: 38359558 DOI: 10.1016/j.cyto.2024.156546] [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: 09/07/2023] [Revised: 01/30/2024] [Accepted: 02/09/2024] [Indexed: 02/17/2024]
Abstract
Human cytomegalovirus (CMV) continues to be a source of severe complications in immunologically immature and immunocompromised hosts. Effective CMV vaccines that help diminish CMV disease in transplant patients and avoid congenital infection are essential. Though the exact roles of defense mechanisms are unidentified, virus-specific antibodies and cytokine responses are known to be involved in controlling CMV infections. Identifying the CMV antigens that trigger these protective immune responses will help us choose the most suitable CMV-related proteins for future vaccines. CMV envelope glycoprotein B (UL55/gB), matrix proteins (UL83/pp65, UL99/pp28, UL32/pp150), and assembly protein UL80a/pp38 are known to be targets for antiviral immune responses. We immunized mice intraperitoneally with these five CMV-related proteins for their ability to induce specific antibody responses and cytokine production in a mouse model. We observed a significant CMV-antigen-specific antibody response to UL80a/pp38 and UL83/pp65 (E/C>2.0). Mice immunized with UL80a/pp38 had significantly higher concentrations of GM-CSF, IFN-γ, IL-2, IL-4, IL-5, and IL-17A (p<0.05). Mice immunized with UL83/pp65 showed significantly higher concentrations of GM-CSF, IFN-γ, IL-2 IL-4, IL-10, IL-12, IL-17A, and TNF-α. Ratios of Th1 to Th2 cytokines revealed a Th1 cytokine bias in mice immunized with UL80a/pp38, UL83/pp65, UL32/pp150, and UL55/gB. We suggest that stimulation with multiple CMV-related proteins, which include UL80a/pp38, UL83/pp65, UL32/pp150, and UL55/gB antigens, will allow both humoral and cellular immune responses to be efficiently activated, thus serving as appropriate CMV antigens for future novel vaccines and immune-based therapeutic design.
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Affiliation(s)
- Sahar Essa
- Department of Microbiology, College of Medicine, Kuwait University, Kuwait City, Kuwait.
| | - Hussain A Safar
- OMICS Research Unit, Health Science Center, Kuwait University, Kuwait City, Kuwait.
| | - Raj Raghupathy
- Department of Microbiology, College of Medicine, Kuwait University, Kuwait City, Kuwait
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Al-Talib M, Dimonte S, Humphreys IR. Mucosal T-cell responses to chronic viral infections: Implications for vaccine design. Cell Mol Immunol 2024:10.1038/s41423-024-01140-2. [PMID: 38459243 DOI: 10.1038/s41423-024-01140-2] [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: 10/26/2023] [Accepted: 01/31/2024] [Indexed: 03/10/2024] Open
Abstract
Mucosal surfaces that line the respiratory, gastrointestinal and genitourinary tracts are the major interfaces between the immune system and the environment. Their unique immunological landscape is characterized by the necessity of balancing tolerance to commensal microorganisms and other innocuous exposures against protection from pathogenic threats such as viruses. Numerous pathogenic viruses, including herpesviruses and retroviruses, exploit this environment to establish chronic infection. Effector and regulatory T-cell populations, including effector and resident memory T cells, play instrumental roles in mediating the transition from acute to chronic infection, where a degree of viral replication is tolerated to minimize immunopathology. Persistent antigen exposure during chronic viral infection leads to the evolution and divergence of these responses. In this review, we discuss advances in the understanding of mucosal T-cell immunity during chronic viral infections and how features of T-cell responses develop in different chronic viral infections of the mucosa. We consider how insights into T-cell immunity at mucosal surfaces could inform vaccine strategies: not only to protect hosts from chronic viral infections but also to exploit viruses that can persist within mucosal surfaces as vaccine vectors.
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Affiliation(s)
- Mohammed Al-Talib
- Systems Immunity University Research Institute/Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
- Bristol Medical School, University of Bristol, 5 Tyndall Avenue, Bristol, BS8 1UD, UK
| | - Sandra Dimonte
- Systems Immunity University Research Institute/Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Ian R Humphreys
- Systems Immunity University Research Institute/Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK.
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Yousefian Z, Tamijani SMS, Ghazvini H, Kheirkhah F, Rafaiee R, Mousavi T. Is human cytomegalovirus a potential risk factor for mood disorders? A systematic review and meta-analysis. Indian J Psychiatry 2023; 65:1104-1111. [PMID: 38249142 PMCID: PMC10795672 DOI: 10.4103/indianjpsychiatry.indianjpsychiatry_672_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/19/2023] [Accepted: 11/07/2023] [Indexed: 01/23/2024] Open
Abstract
Mood disorders are among the common mental disorders worldwide. Because of the persistence of cytomegalovirus (CMV) in the body and nervous system, this virus can be activated when the immune system is weakened and continues to exert its destructive effects throughout life. This study aimed to investigate the seroprevalence and association of human cytomegalovirus with mood disorders. Eligible articles were extracted using online international databases Science Direct, Medline, Web of Science, Scopus, and Google Scholar between 2000 and 2023. After quality assessment and specific inclusion and exclusion criteria, a total of eight eligible articles were included in the meta-analysis. Our finding showed that the seropositivity of CMV in mood disorders was 51.6% (95% CI; 42.8-60.4). There were statistical differences between mood disorders and control groups regarding the seropositivity of CMV 1.327% (95% CI; 13.27-10.45). The results of the publication bias using the Egger test confirmed no publication bias in each sub-group. The results of this meta-analysis study demonstrated that CMV infection might have associations with the incidence of mood disorders. Furthermore, we found that there were statistical differences between mood disorders and control groups regarding the seropositivity of CMV.
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Affiliation(s)
- Zahra Yousefian
- Department of Neuroscience, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | | | - Hamed Ghazvini
- Department of Neuroscience, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Farzan Kheirkhah
- Department of Psychiatry, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Raheleh Rafaiee
- Department of Neuroscience, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Tahoora Mousavi
- Molecular and Cell Biology Research Center (MCBRC), Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- Molecular and Cell Biology Research Center (MCBRC), Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
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Clement M. The association of microbial infection and adaptive immune cell activation in Alzheimer's disease. DISCOVERY IMMUNOLOGY 2023; 2:kyad015. [PMID: 38567070 PMCID: PMC10917186 DOI: 10.1093/discim/kyad015] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 07/31/2023] [Accepted: 09/04/2023] [Indexed: 04/04/2024]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder and the most common form of dementia. Early symptoms include the loss of memory and mild cognitive ability; however, as the disease progresses, these symptoms can present with increased severity manifesting as mood and behaviour changes, disorientation, and a loss of motor/body control. AD is one of the leading causes of death in the UK, and with an ever-increasing ageing society, patient numbers are predicted to rise posing a significant global health emergency. AD is a complex neurophysiological disorder where pathology is characterized by the deposition and aggregation of misfolded amyloid-beta (Aβ)-protein that in-turn promotes excessive tau-protein production which together drives neuronal cell dysfunction, neuroinflammation, and neurodegeneration. It is widely accepted that AD is driven by a combination of both genetic and immunological processes with recent data suggesting that adaptive immune cell activity within the parenchyma occurs throughout disease. The mechanisms behind these observations remain unclear but suggest that manipulating the adaptive immune response during AD may be an effective therapeutic strategy. Using immunotherapy for AD treatment is not a new concept as the only two approved treatments for AD use antibody-based approaches to target Aβ. However, these have been shown to only temporarily ease symptoms or slow progression highlighting the urgent need for newer treatments. This review discusses the role of the adaptive immune system during AD, how microbial infections may be contributing to inflammatory immune activity and suggests how adaptive immune processes can pose as therapeutic targets for this devastating disease.
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Affiliation(s)
- Mathew Clement
- Division of Infection and Immunity, Systems Immunity University Research Institute, Cardiff University, Cardiff, UK
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8
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Ma G, Yu Z, Nan F, Zhang X, Jiang S, Wang Y, Wang B. HCMV-IE2 promotes atherosclerosis by inhibiting vascular smooth muscle cells' pyroptosis. Front Microbiol 2023; 14:1177391. [PMID: 37234524 PMCID: PMC10206012 DOI: 10.3389/fmicb.2023.1177391] [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: 03/01/2023] [Accepted: 04/25/2023] [Indexed: 05/28/2023] Open
Abstract
Atherosclerosis is still the main cause of death in developed and developing countries. Vascular smooth muscle cells (VSMCs) death disorder is a key pathogens of atherosclerosis. During the early stage of human cytomegalovirus (HCMV) infection, immediate early protein 2 (IE2) is critical in regulating its host cell death to ensure HCMV replication. Abnormal cell death induced by HCMV infection contributes to the development of numerous diseases, including atherosclerosis. Hitherto, the underlying mechanism of HCMV involved in the progression of atherosclerosis is still unclear. In this study, the infection models in vitro and in vivo were constructed to explore the pathogenesis of HCMV-related atherosclerosis. Our results indicated that HCMV could contribute to the progression of atherosclerosis by enhancing the proliferation, invasion, and inhibiting the pyroptosis of VSMCs under inflammatory conditions. Meanwhile, IE2 played a key role in these events. Our present research revealed a novel pathogenesis of HCMV-related atherosclerosis, which might help develop new therapeutic strategies.
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Affiliation(s)
- Guixin Ma
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
| | - Zhongjie Yu
- Department of Special Medicine, School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
| | - Fulong Nan
- Department of Special Medicine, School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
| | - Xianjuan Zhang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
| | - Shasha Jiang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
| | - Yunyang Wang
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Bin Wang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
- Department of Special Medicine, School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
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de Almeida SGS, Knakcfuss FB, Assis LM, de Sousa RCG, Matuck TA, de Carvalho DDBM, Machado RLD, Guimarães MAAM, Varella RB. Investigation of cytokine polymorphisms on viral infections after renal transplantation exhibit association between IFN-γ +874 A > T and CMV manifestations. Int J Immunogenet 2022; 49:379-383. [PMID: 36193010 DOI: 10.1111/iji.12601] [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: 07/12/2022] [Revised: 08/23/2022] [Accepted: 09/16/2022] [Indexed: 11/30/2022]
Abstract
We investigated the effects of TNF-α, IFN-γ, IL-10 polymorphisms on viral infections (CMV, BKPyV, HHV-6, EBV) after renal transplantation. IFN-γ+874 A > T (lower IFN production) was associated with CMV disease (p = .039) in patients under mycophenolate-based therapy and graft failure (p = .025). This study underscores the role of IFN-γ+874 SNP in CMV infection.
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Affiliation(s)
- Stéphanie Gomes Santos de Almeida
- Department of Preventive Medicine, University Hospital Clementino Fraga Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Lívia Maria Assis
- Service of Renal Transplantation, Rio de Janeiro State Center of transplantation, São Francisco na Providência de Deus Hospital, Rio de Janeiro, Brazil
| | - Regina Celia Gonçalves de Sousa
- Service of Renal Transplantation, Rio de Janeiro State Center of transplantation, São Francisco na Providência de Deus Hospital, Rio de Janeiro, Brazil
| | - Tereza Azevedo Matuck
- Service of Renal Transplantation, Rio de Janeiro State Center of transplantation, São Francisco na Providência de Deus Hospital, Rio de Janeiro, Brazil
| | - Deise de Boni Monteiro de Carvalho
- Service of Renal Transplantation, Rio de Janeiro State Center of transplantation, São Francisco na Providência de Deus Hospital, Rio de Janeiro, Brazil
| | - Ricardo Luiz Dantas Machado
- Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, Brazil
| | | | - Rafael Brandão Varella
- Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, Brazil
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Pandeya A, Khalko RK, Singh S, Kumar M, Gosipatala SB. Hcmv-miR-UL148D regulates the staurosporine-induced apoptosis by targeting the Endoplasmic Reticulum to Nucleus signaling 1(ERN1). PLoS One 2022; 17:e0275072. [PMID: 36156601 PMCID: PMC9512192 DOI: 10.1371/journal.pone.0275072] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 09/09/2022] [Indexed: 11/19/2022] Open
Abstract
The propensity of viruses to co-opt host cellular machinery by reprogramming the host’s RNA-interference machinery has been a major focus of research, however, regulation of host defense mechanisms by virus-encoded miRNA, is an additional regulatory realm gaining momentum in the arena of host-viral interactions. The Human Cytomegalovirus (HCMV) miRNAs, regulate many cellular pathways alone or in concordance with HCMV proteins, thereby paving a conducive environment for successful infection in the human host. We show that HCMV miRNA, hcmv-miR-UL148D inhibits staurosporine-induced apoptosis in HEK293T cells. We establish that ERN1 mRNA is a bonafide target of hcmv-miR-UL148D and its encoded protein IRE1α is translationally repressed by the overexpression of hcmv-miR-UL148D resulting in the attenuation of apoptosis. Unlike the host microRNA seed sequence (6–8 nucleotides), hcmv-miR-UL148D has long complementarity to 3’ UTR of ERN1 mRNA resulting in mRNA degradation. The repression of IRE1α by the hcmv-miR-UL148D further downregulates Xbp1 splicing and c-Jun N-terminal kinase phosphorylation thus regulating ER-stress and ER-stress induced apoptotic pathways. Strikingly, depletion of ERN1 attenuates staurosporine-induced apoptosis which further suggests that hcmv-miR-UL148D functions through regulation of its target ERN1. These results uncover a role for hcmv-miR-UL148D and its target ERN1 in regulating ER stress-induced apoptosis.
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Affiliation(s)
- Abhishek Pandeya
- Department of Biotechnology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh, India
| | - Raj Kumar Khalko
- Department of Biotechnology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh, India
| | - Sukhveer Singh
- Developmental Toxicology Laboratory, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, Uttar Pradesh, India
| | - Manish Kumar
- National Heart Lung and Blood Institute, National Institute of Health, Bethesda, Maryland, United States of America
| | - Sunil Babu Gosipatala
- Department of Biotechnology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh, India
- * E-mail:
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11
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Zhang W, Guo J, Chen Q. Role of PARP-1 in Human Cytomegalovirus Infection and Functional Partners Encoded by This Virus. Viruses 2022; 14:2049. [PMID: 36146855 PMCID: PMC9501325 DOI: 10.3390/v14092049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/11/2022] [Accepted: 09/12/2022] [Indexed: 11/17/2022] Open
Abstract
Human cytomegalovirus (HCMV) is a ubiquitous pathogen that threats the majority of the world's population. Poly (ADP-ribose) polymerase 1 (PARP-1) and protein poly (ADP-ribosyl)ation (PARylation) regulates manifold cellular functions. The role of PARP-1 and protein PARylation in HCMV infection is still unknown. In the present study, we found that the pharmacological and genetic inhibition of PARP-1 attenuated HCMV replication, and PARG inhibition favors HCMV replication. PARP-1 and its enzymatic activity were required for efficient HCMV replication. HCMV infection triggered the activation of PARP-1 and induced the translocation of PARP-1 from nucleus to cytoplasm. PARG was upregulated in HCMV-infected cells and this upregulation was independent of viral DNA replication. Moreover, we found that HCMV UL76, a true late protein of HCMV, inhibited the overactivation of PARP-1 through direct binding to the BRCT domain of PARP-1. In addition, UL76 also physically interacted with poly (ADP-ribose) (PAR) polymers through the RG/RGG motifs of UL76 which mediates its recruitment to DNA damage sites. Finally, PARP-1 inhibition or depletion potentiated HCMV-triggered induction of type I interferons. Our results uncovered the critical role of PARP-1 and PARP-1-mediated protein PARylation in HCMV replication.
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Affiliation(s)
| | | | - Qiang Chen
- Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Wuhan University, Wuhan 430071, China
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12
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Nakamura MR, Requião-Moura LR, Gallo RM, Botelho C, Taddeo J, Viana LA, Felipe CR, Medina-Pestana J, Tedesco-Silva H. Transition from antigenemia to quantitative nucleic acid amplification testing in cytomegalovirus-seropositive kidney transplant recipients receiving preemptive therapy for cytomegalovirus infection. Sci Rep 2022; 12:12783. [PMID: 35896770 PMCID: PMC9329426 DOI: 10.1038/s41598-022-16847-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 07/18/2022] [Indexed: 11/09/2022] Open
Abstract
Due to the high costs, the strategy to reduce the impact of cytomegalovirus (CMV) after kidney transplant (KT) involves preemptive treatment in low and middle-income countries. Thus, this retrospective cohort study compared the performance of antigenemia transitioned to quantitative nucleic acid amplification testing, RT-PCR, in CMV-seropositive KT recipients receiving preemptive treatment as a strategy to prevent CMV infection. Between 2016 and 2018, 363 patients were enrolled and received preemptive treatment based on antigenemia (n = 177) or RT-PCR (n = 186). The primary outcome was CMV disease. Secondarily, the CMV-related events were composed of CMV-infection and disease, which occurred first. There were no differences in 1-year cumulative incidence of CMV-disease (23.7% vs. 19.1%, p = 0.41), CMV-related events (50.8% vs. 44.1%, p = 0.20), neither in time to diagnosis (47.0 vs. 47.0 days) among patients conducted by antigenemia vs. RT-PCR, respectively. The length of CMV first treatment was longer with RT-PCR (20.0 vs. 27.5 days, p < 0.001), while the rate of retreatment was not different (14.7% vs. 11.8%, p = 0.48). In the Cox regression, acute rejection within 30 days was associated with an increased the risk (HR = 2.34; 95% CI = 1.12-4.89; p = 0.024), while each increase of 1 mL/min/1.73 m2 of 30-day eGFR was associated with a 2% reduction risk of CMV-disease (HR = 0.98; 95% CI = 0.97-0.99; p = 0.001). In conclusion, acute rejection and glomerular filtration rate are risk factors for CMV disease, showing comparable performance in the impact of CMV-related events between antigenemia and RT-PCR for preemptive treatment.
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Affiliation(s)
- Mônica Rika Nakamura
- Hospital do Rim, Fundação Oswaldo Ramos, São Paulo, Brazil.,Nephrology Division, Department of Medicine, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Lúcio R Requião-Moura
- Hospital do Rim, Fundação Oswaldo Ramos, São Paulo, Brazil. .,Nephrology Division, Department of Medicine, Universidade Federal de São Paulo, São Paulo, Brazil.
| | | | - Camila Botelho
- Hospital do Rim, Fundação Oswaldo Ramos, São Paulo, Brazil
| | - Júlia Taddeo
- Hospital do Rim, Fundação Oswaldo Ramos, São Paulo, Brazil
| | | | - Cláudia Rosso Felipe
- Nephrology Division, Department of Medicine, Universidade Federal de São Paulo, São Paulo, Brazil
| | - José Medina-Pestana
- Hospital do Rim, Fundação Oswaldo Ramos, São Paulo, Brazil.,Nephrology Division, Department of Medicine, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Hélio Tedesco-Silva
- Hospital do Rim, Fundação Oswaldo Ramos, São Paulo, Brazil.,Nephrology Division, Department of Medicine, Universidade Federal de São Paulo, São Paulo, Brazil
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13
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Wu S, Wang S, Wang L, Peng H, Zhang S, Yang Q, Huang M, Li Y, Guan S, Jiang W, Zhang Z, Bi Q, Li L, Gao Y, Xiong P, Zhong Z, Xu B, Deng Y, Deng Y. Docosahexaenoic acid supplementation represses the early immune response against murine cytomegalovirus but enhances NK cell effector function. BMC Immunol 2022; 23:17. [PMID: 35439922 PMCID: PMC9017742 DOI: 10.1186/s12865-022-00492-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 04/12/2022] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Docosahexaenoic acid (DHA) supplementation is beneficial for several chronic diseases; however, its effect on immune regulation is still debated. Given the prevalence of cytomegalovirus (CMV) infection and because natural killer (NK) cells are a component of innate immunity critical for controlling CMV infection, the current study explored the effect of a DHA-enriched diet on susceptibility to murine (M) CMV infection and the NK cell effector response to MCMV infection. RESULTS Male C57BL/6 mice fed a control or DHA-enriched diet for 3 weeks were infected with MCMV and sacrificed at the indicated time points postinfection. Compared with control mice, DHA-fed mice had higher liver and spleen viral loads at day 7 postinfection, but final MCMV clearance was not affected. The total numbers of NK cells and their terminal mature cell subset (KLRG1+ and Ly49H+ NK cells) were reduced compared with those in control mice at day 7 postinfection but not day 21. DHA feeding resulted in higher IFN-γ and granzyme B expression in splenic NK cells at day 7 postinfection. A mechanistic analysis showed that the splenic NK cells of DHA-fed mice had enhanced glucose uptake, increased CD71 and CD98 expression, and higher mitochondrial mass than control mice. In addition, DHA-fed mice showed reductions in the total numbers and activation levels of CD4+ and CD8+ T cells. CONCLUSIONS These results suggest that DHA supplementation represses the early response to CMV infection but preserves NK cell effector functions by improving mitochondrial activity, which may play critical roles in subsequent MCMV clearance.
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Affiliation(s)
- Shuting Wu
- Pediatrics Research Institute of Hunan Province, Hunan Children's Hospital, Changsha, Hunan, People's Republic of China.,Pediatric Intensive Care Unit, Hunan Children's Hospital, University of South China, Changsha, Hunan, People's Republic of China
| | - Shanshan Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, 510060, People's Republic of China
| | - Lili Wang
- Pediatrics Research Institute of Hunan Province, Hunan Children's Hospital, Changsha, Hunan, People's Republic of China.,Pediatric Intensive Care Unit, Hunan Children's Hospital, University of South China, Changsha, Hunan, People's Republic of China
| | - Hongyan Peng
- Pediatrics Research Institute of Hunan Province, Hunan Children's Hospital, Changsha, Hunan, People's Republic of China.,Pediatric Intensive Care Unit, Hunan Children's Hospital, University of South China, Changsha, Hunan, People's Republic of China
| | - Shuju Zhang
- Pediatrics Research Institute of Hunan Province, Hunan Children's Hospital, Changsha, Hunan, People's Republic of China.,Pediatric Intensive Care Unit, Hunan Children's Hospital, University of South China, Changsha, Hunan, People's Republic of China
| | - Qinglan Yang
- Pediatrics Research Institute of Hunan Province, Hunan Children's Hospital, Changsha, Hunan, People's Republic of China.,Pediatric Intensive Care Unit, Hunan Children's Hospital, University of South China, Changsha, Hunan, People's Republic of China
| | - Minghui Huang
- Pediatrics Research Institute of Hunan Province, Hunan Children's Hospital, Changsha, Hunan, People's Republic of China.,Pediatric Intensive Care Unit, Hunan Children's Hospital, University of South China, Changsha, Hunan, People's Republic of China
| | - Yana Li
- Pediatrics Research Institute of Hunan Province, Hunan Children's Hospital, Changsha, Hunan, People's Republic of China.,Pediatric Intensive Care Unit, Hunan Children's Hospital, University of South China, Changsha, Hunan, People's Republic of China
| | - Shuzhen Guan
- Pediatrics Research Institute of Hunan Province, Hunan Children's Hospital, Changsha, Hunan, People's Republic of China.,Pediatric Intensive Care Unit, Hunan Children's Hospital, University of South China, Changsha, Hunan, People's Republic of China
| | - Wenjuan Jiang
- Pediatrics Research Institute of Hunan Province, Hunan Children's Hospital, Changsha, Hunan, People's Republic of China.,Pediatric Intensive Care Unit, Hunan Children's Hospital, University of South China, Changsha, Hunan, People's Republic of China
| | - Zhaohui Zhang
- Institute of Materia Medica, College of Pharmacy, Army Medical University (Third Military Medical University), Chongqing, 400038, People's Republic of China
| | - Qinghua Bi
- Institute of Materia Medica, College of Pharmacy, Army Medical University (Third Military Medical University), Chongqing, 400038, People's Republic of China
| | - Liping Li
- Pediatrics Research Institute of Hunan Province, Hunan Children's Hospital, Changsha, Hunan, People's Republic of China.,Pediatric Intensive Care Unit, Hunan Children's Hospital, University of South China, Changsha, Hunan, People's Republic of China
| | - Yuan Gao
- Southwest Hospital/Southwest Eye Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, People's Republic of China
| | - Peiwen Xiong
- Pediatrics Research Institute of Hunan Province, Hunan Children's Hospital, Changsha, Hunan, People's Republic of China.,Pediatric Intensive Care Unit, Hunan Children's Hospital, University of South China, Changsha, Hunan, People's Republic of China
| | - Zhaoyang Zhong
- Cancer Center, Daping Hospital and Research Institute of Surgery, Army Medical University (Third Military Medical University), Chongqing, 400042, People's Republic of China
| | - Bo Xu
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, 221002, People's Republic of China.
| | - Yafei Deng
- Pediatrics Research Institute of Hunan Province, Hunan Children's Hospital, Changsha, Hunan, People's Republic of China. .,Pediatric Intensive Care Unit, Hunan Children's Hospital, University of South China, Changsha, Hunan, People's Republic of China.
| | - Youcai Deng
- Institute of Materia Medica, College of Pharmacy, Army Medical University (Third Military Medical University), Chongqing, 400038, People's Republic of China.
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14
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Moysi E, Paris RM, Le Grand R, Koup RA, Petrovas C. Human lymph node immune dynamics as driver of vaccine efficacy: an understudied aspect of immune responses. Expert Rev Vaccines 2022; 21:633-644. [PMID: 35193447 DOI: 10.1080/14760584.2022.2045198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION During the last century, changes in hygiene, sanitation, and the advent of childhood vaccination have resulted in profound reductions in mortality from infectious diseases. Despite this success, infectious diseases remain an enigmatic public health threat, where effective vaccines for influenza, human immunodeficiency virus (HIV), tuberculosis, and malaria, among others remain elusive. AREA COVERED In addition to the immune evasion tactics employed by complex pathogens, our understanding of immunopathogenesis and the development of effective vaccines is also complexified by the inherent variability of human immune responses. Lymph nodes (LNs) are the anatomical sites where B cell responses develop. An important, but understudied component of immune response complexity is variation in LN immune dynamics and in particular variation in germinal center follicular helper T cells (Tfh) and B cells which can be impacted by genetic variation, aging, the microbiome and chronic infection. EXPERT OPINION This review describes the contribution of genetic variation, aging, microbiome and chronic infection on LN immune dynamics and associated Tfh responses and offers perspective on how inclusion of LN immune subset and cytoarchitecture analyses, along with peripheral blood biomarkers can supplement systems vaccinology or immunology approaches for the development of vaccines or other interventions to prevent infectious diseases.
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Affiliation(s)
- Eirini Moysi
- Tissue Analysis Core, Vaccine Research Center, NIAID, NIH, Bethesda, MD, USA
| | | | - Roger Le Grand
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, Fontenay-aux-Roses, France
| | - Richard A Koup
- Immunology Laboratory, Vaccine Research Center, NIAID, NIH, Bethesda, MD, USA
| | - Constantinos Petrovas
- Tissue Analysis Core, Vaccine Research Center, NIAID, NIH, Bethesda, MD, USA.,Department of Laboratory Medicine and Pathology, Institute of Pathology, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland
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15
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Lambe G, Mansukhani D, Khodaiji S, Shetty A, Rodrigues C, Kapadia F. Immune Modulation and Cytomegalovirus Reactivation in Sepsis-induced Immunosuppression: A Pilot Study. Indian J Crit Care Med 2022; 26:53-61. [PMID: 35110845 PMCID: PMC8783232 DOI: 10.5005/jp-journals-10071-24079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Introduction Sepsis is a life-threatening condition caused due to dysregulated immune response to an infection and progressive immunosuppression. Reactivation of cytomegalovirus (CMV) occurs frequently in sepsis and is found associated with adverse outcomes. The study objective was to evaluate the association between incidence of CMV reactivation and immune alteration in sepsis-induced immunosuppression in patients with prolonged sepsis. Patients and methods Patients admitted to intensive care unit (ICU), with severe sepsis and CMV immunoglobulin G (IgG) seropositivity, were prospectively enrolled. Other manifest immune suppression causes were excluded. Samples were collected on enrolment and further once a week until day 21 or death/discharge. CMV viral load was quantified using qPCR. Lymphocyte subset analysis (CD3+, CD4+, CD8+, CD19+, CD16+/CD56+, and CD25+CD127− regulatory T cells), human leukocyte antigen-DR isotype (HLA-DR) expression on monocytes, programmed death-1 (PD-1) expression on T lymphocytes, and proinflammatory (interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), and interferon-gamma (IFN-γ)), anti-inflammatory cytokines levels (IL-2, IL-4, and IL-10) were analyzed by flow cytometry as markers for immunosuppression. Results A total of 25 CMV IgG-positive patients and 11 healthy controls were included. CMV reactivation occurred in 20 patients. Patients with CMV reactivation had T-cell lymphopenia. PD-1 expression on CD4+ and CD8+ T cells was markedly elevated (p <0.02) in CMV-reactivated patients compared to nonreactivated patients. HLA-DR expression was significantly low on monocytes in all septic patients (p <0.01) compared to healthy controls. IL-6 levels showed elevation at day 7, whereas IL-10 was found to be significantly higher from day 0 in CMV-reactivated group. Conclusion Our study concluded that immune suppression markers and cytokine levels in patients with severe sepsis were found to be significantly associated with the incidence of CMV reactivation. How to cite this article Lambe G, Mansukhani D, Khodaiji S, Shetty A, Rodrigues C, Kapadia F. Immune Modulation and Cytomegalovirus Reactivation in Sepsis-induced Immunosuppression: A Pilot Study. Indian J Crit Care Med 2022;26(1):53–61.
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Affiliation(s)
- Gaurav Lambe
- Department of Laboratory Medicine, PD Hinduja Hospital and Medical Research Centre, Mumbai, Maharashtra, India; Department of Critical Care, PD Hinduja Hospital and Medical Research Centre, Mumbai, Maharashtra, India
| | - Dia Mansukhani
- Department of Laboratory Medicine, PD Hinduja Hospital and Medical Research Centre, Mumbai, Maharashtra, India
| | - Shanaz Khodaiji
- Department of Laboratory Medicine, PD Hinduja Hospital and Medical Research Centre, Mumbai, Maharashtra, India
- Shanaz Khodaiji, Department of Laboratory Medicine, PD Hinduja Hospital and Medical Research Centre, Mumbai, Maharashtra, India, Phone: +91 9820551848, e-mail:
| | - Anjali Shetty
- Department of Laboratory Medicine, PD Hinduja Hospital and Medical Research Centre, Mumbai, Maharashtra, India
| | - Camilla Rodrigues
- Department of Laboratory Medicine, PD Hinduja Hospital and Medical Research Centre, Mumbai, Maharashtra, India
| | - Farhad Kapadia
- Department of Intensive Care, PD Hinduja Hospital and Medical Research Centre, Mumbai, Maharashtra, India
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16
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Lee KH, Yoo SG, Han KD, La Y, Kwon DE, Han SH. Association of cytomegalovirus diseases with newly developed myocardial infarction and congestive heart failure: data from a national population-based cohort. Arch Med Sci 2022; 18:1188-1198. [PMID: 36160359 PMCID: PMC9479588 DOI: 10.5114/aoms/105157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 03/02/2019] [Indexed: 12/03/2022] Open
Abstract
INTRODUCTION Anti-cytomegalovirus (CMV) IgG seropositive and/or titer are associated with a higher risk of cardiovascular diseases (CVD). However, it is not clear whether CMV end-organ disease may have a relation with development of CVD or chronic heart diseases. MATERIAL AND METHODS In matched cohort study, the National Health Insurance Database covering 50 million people was used to identify 667 patients with CMV diseases and aged ≥ 20 years between 2010 and 2014. 6,670 control subjects without CMV diseases were matched by age, sex, type 2 diabetes mellitus (DM), hypertension, dyslipidemia, and cohort entry year. Data on CMV disease and heart disease events of myocardial infarction (MI), congestive heart failure (CHF), and atrial fibrillation (AF) were retrieved. Previous events before CMV disease or cohort entry were excluded until January 2006. Subjects were followed until December 2015 in subjects without events and until date of events in subjects with events. RESULTS The multivariate regression model adjusted by age, sex, low-income status, type 2 DM, hypertension, dyslipidemia, solid organ transplantation, and hematopoietic stem cell transplantation showed a significantly higher incidence rate of MI (odds ratio (OR) = 2.1, 95% confidence intervals (CI): 1.0-4.5) and CHF (OR = 3.8, 95% CI: 2.1-6.8) but not AF (OR = 1.9, 95% CI: 0.9-4.0) in patients with CMV disease. The age group of 40-64 years with CMV disease had the highest risk for new-onset CHF in this regression model (OR = 9.4, 95% CI: 4.12-21.44, p = 0.029). CONCLUSIONS Symptomatic CMV tissue-invasive diseases were associated with a higher risk of new-onset MI and CHF.
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Affiliation(s)
- Kyoung Hwa Lee
- Divison of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seul Gi Yoo
- Divison of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kyung Do Han
- Department of Biostatistics, Catholic University College of Medicine, Seoul, Republic of Korea
| | - Yeonju La
- Divison of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Da Eun Kwon
- Divison of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sang Hoon Han
- Divison of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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17
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Marongiu L, Allgayer H. Viruses in colorectal cancer. Mol Oncol 2021; 16:1423-1450. [PMID: 34514694 PMCID: PMC8978519 DOI: 10.1002/1878-0261.13100] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/15/2021] [Accepted: 09/10/2021] [Indexed: 12/23/2022] Open
Abstract
Increasing evidence suggests that microorganisms might represent at least highly interesting cofactors in colorectal cancer (CRC) oncogenesis and progression. Still, associated mechanisms, specifically in colonocytes and their microenvironmental interactions, are still poorly understood. Although, currently, at least seven viruses are being recognized as human carcinogens, only three of these – Epstein–Barr virus (EBV), human papillomavirus (HPV) and John Cunningham virus (JCV) – have been described, with varying levels of evidence, in CRC. In addition, cytomegalovirus (CMV) has been associated with CRC in some publications, albeit not being a fully acknowledged oncovirus. Moreover, recent microbiome studies set increasing grounds for new hypotheses on bacteriophages as interesting additional modulators in CRC carcinogenesis and progression. The present Review summarizes how particular groups of viruses, including bacteriophages, affect cells and the cellular and microbial microenvironment, thereby putatively contributing to foster CRC. This could be achieved, for example, by promoting several processes – such as DNA damage, chromosomal instability, or molecular aspects of cell proliferation, CRC progression and metastasis – not necessarily by direct infection of epithelial cells only, but also by interaction with the microenvironment of infected cells. In this context, there are striking common features of EBV, CMV, HPV and JCV that are able to promote oncogenesis, in terms of establishing latent infections and affecting p53‐/pRb‐driven, epithelial–mesenchymal transition (EMT)‐/EGFR‐associated and especially Wnt/β‐catenin‐driven pathways. We speculate that, at least in part, such viral impacts on particular pathways might be reflected in lasting (e.g. mutational or further genomic) fingerprints of viruses in cells. Also, the complex interplay between several species within the intestinal microbiome, involving a direct or indirect impact on colorectal and microenvironmental cells but also between, for example, phages and bacterial and viral pathogens, and further novel species certainly might, in part, explain ongoing difficulties to establish unequivocal monocausal links between specific viral infections and CRC.
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Affiliation(s)
- Luigi Marongiu
- Department of Experimental Surgery - Cancer Metastasis, Medical Faculty Mannheim, Ruprecht-Karls-University of Heidelberg, Mannheim, Germany
| | - Heike Allgayer
- Department of Experimental Surgery - Cancer Metastasis, Medical Faculty Mannheim, Ruprecht-Karls-University of Heidelberg, Mannheim, Germany
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18
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El Baba R, Herbein G. Immune Landscape of CMV Infection in Cancer Patients: From "Canonical" Diseases Toward Virus-Elicited Oncomodulation. Front Immunol 2021; 12:730765. [PMID: 34566995 PMCID: PMC8456041 DOI: 10.3389/fimmu.2021.730765] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 08/23/2021] [Indexed: 11/13/2022] Open
Abstract
Human Cytomegalovirus (HCMV) is an immensely pervasive herpesvirus, persistently infecting high percentages of the world population. Despite the apparent robust host immune responses, HCMV is capable of replicating, evading host defenses, and establishing latency throughout life by developing multiple immune-modulatory strategies. HCMV has coexisted with humans mounting various mechanisms to evade immune cells and effectively win the HCMV-immune system battle mainly through maintaining its viral genome, impairing HLA Class I and II molecule expression, evading from natural killer (NK) cell-mediated cytotoxicity, interfering with cellular signaling, inhibiting apoptosis, escaping complement attack, and stimulating immunosuppressive cytokines (immune tolerance). HCMV expresses several gene products that modulate the host immune response and promote modifications in non-coding RNA and regulatory proteins. These changes are linked to several complications, such as immunosenescence and malignant phenotypes leading to immunosuppressive tumor microenvironment (TME) and oncomodulation. Hence, tumor survival is promoted by affecting cellular proliferation and survival, invasion, immune evasion, immunosuppression, and giving rise to angiogenic factors. Viewing HCMV-induced evasion mechanisms will play a principal role in developing novel adapted therapeutic approaches against HCMV, especially since immunotherapy has revolutionized cancer therapeutic strategies. Since tumors acquire immune evasion strategies, anti-tumor immunity could be prominently triggered by multimodal strategies to induce, on one side, immunogenic tumor apoptosis and to actively oppose the immune suppressive microenvironment, on the other side.
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Affiliation(s)
- Ranim El Baba
- Department Pathogens & Inflammation-EPILAB EA4266, University of Franche-Comté UBFC, Besançon, France
| | - Georges Herbein
- Department Pathogens & Inflammation-EPILAB EA4266, University of Franche-Comté UBFC, Besançon, France
- Department of Virology, Centre hospitalier régional universitaire de Besançon (CHRU) Besançon, Besancon, France
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19
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Single Nucleotide Polymorphisms of Interleukins and Toll-like Receptors and Neuroimaging Results in Newborns with Congenital HCMV Infection. Viruses 2021; 13:v13091783. [PMID: 34578364 PMCID: PMC8473223 DOI: 10.3390/v13091783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/20/2021] [Accepted: 09/02/2021] [Indexed: 11/16/2022] Open
Abstract
Congenital cytomegalovirus infection (cCMV) is the most common intrauterine infection with central nervous system (CNS) involvement. There is limited data on the associations between Single Nucleotide Polymorphisms (SNPs) in genes involving the first-line defense mechanism and the risk of CNS damage during cCMV. We investigated the associations between neuroimaging findings and SNPs in genes encoding the following cytokines and cytokine receptors in 92 infants with cCMV: interleukins (IL1B rs16944, IL12B rs3212227, IL28B rs12979860), C-C motif chemokine ligand 2 (CCL2 rs1024611), dendritic cell-specific intercellular adhesion grabbing non-integrin (DC-SIGN rs735240), Toll-like receptors (TLR2 rs5743708, TLR4 rs4986791, TLR9 rs352140). The SNP of IL1B rs16944 (G/A) was associated with a reduced risk of ventriculomegaly on MRI (OR = 0.46, 95% CI, 0.22-0.95; p = 0.03) and cUS (OR = 0.38, 95% CI, 0.0-0.93; p = 0.034). Infants carrying heterozygous (T/C) genotype at IL28B rs12979860 had an increased risk of cystic lesions on cUS (OR = 3.31, 95% CI, 1.37-8.01; p = 0.0064) and MRI (OR = 4.97, 95% CI, 1.84-13.43; p = 0.001), and an increased risk of ventriculomegaly on MRI (OR = 2.46, 95% CI, 1.03-5.90; p = 0.04). No other associations between genotyped SNPs and neuroimaging results were found. This is the first study demonstrating new associations between SNPs of IL1B and IL28B and abnormal neuroimaging in infants with cCMV.
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20
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Belga S, MacDonald C, Chiang D, Kabbani D, Shojai S, Abraldes JG, Cervera C. Donor Graft Cytomegalovirus Serostatus and the Risk of Arterial and Venous Thrombotic Events in Seronegative Recipients After Non-Thoracic Solid Organ Transplantation. Clin Infect Dis 2021; 72:845-852. [PMID: 32025704 DOI: 10.1093/cid/ciaa125] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 02/04/2020] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Cytomegalovirus (CMV) is the most common opportunistic pathogen, following solid organ transplantation (SOT), that leads to direct and indirect effects. The aim of this study was to assess the impact of CMV exposure at transplantation on the rate of posttransplant thrombotic events (TEs). METHODS We conducted a retrospective cohort study of patients transplanted at the University of Alberta Hospital between July 2005 and January 2018. We included adult SOT CMV-seronegative recipients at transplantation who received an allograft from either a seropositive donor (D+/R-) or a seronegative donor (D-/R-). RESULTS A total of 392 SOT recipients were included: 151 (39%) liver, 188 (48%) kidney, 45 (11%) pancreas, and 8 (2%) other transplants. The mean age was 47 years, 297 (76%) were males, and 181 (46%) had a CMV D+/R- donor. Patients in the CMV D+/R- cohort were slightly older (51 years versus 48 years in the D-/R- cohort; P = .036), while other variables, including cardiovascular risk factors and pretransplant TEs, were not different between groups. Overall, TEs occurred in 35 (19%) patients in the CMV D+/R- group, versus 21 (10%) in the CMV D-/R- group, at 5 years of follow-up (P = .008); the incidence rates per 100 transplant months were 5.12 and 1.02 in the CMV D+/R- and CMV D-/R- groups, respectively (P = .003). After adjusting for potential confounders with a Cox regression model, a CMV D+/R- transplantation was independently associated with an increased risk of a TE over 5 years (adjusted hazard ratio, 3.027; 95% confidence interval, 1.669-5.488). CONCLUSIONS A CMV D+/R- transplantation is associated with an increased risk of a TE posttransplantation.
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Affiliation(s)
- Sara Belga
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.,Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Clayton MacDonald
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada
| | - Diana Chiang
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Dima Kabbani
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Soroush Shojai
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Juan G Abraldes
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Carlos Cervera
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
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21
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Yu Z, Wang Y, Liu L, Zhang X, Jiang S, Wang B. Apoptosis Disorder, a Key Pathogenesis of HCMV-Related Diseases. Int J Mol Sci 2021; 22:ijms22084106. [PMID: 33921122 PMCID: PMC8071541 DOI: 10.3390/ijms22084106] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/09/2021] [Accepted: 04/13/2021] [Indexed: 02/07/2023] Open
Abstract
Human cytomegalovirus (HCMV) belongs to the β-herpesvirus family, which is transmitted in almost every part of the world and is carried by more than 90% of the general population. Increasing evidence indicates that HCMV infection triggers numerous diseases by disrupting the normal physiological activity of host cells, particularly apoptosis. Apoptosis disorder plays a key role in the initiation and development of multiple diseases. However, the relationship and molecular mechanism of HCMV-related diseases and apoptosis have not yet been systematically summarized. This review aims to summarize the role of apoptosis in HCMV-related diseases and provide an insight into the molecular mechanism of apoptosis induced by HCMV infection. We summarize the literature on HCMV-related diseases and suggest novel strategies for HCMV treatment by regulating apoptosis.
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Affiliation(s)
- Zhongjie Yu
- Department of Special Medicine, School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao 266000, China;
| | - Yashuo Wang
- College of Life Sciences, Qingdao University, Qingdao 266000, China;
| | - Lili Liu
- Department of Basic Medicine, School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao 266000, China;
| | - Xianjuan Zhang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao 266000, China; (X.Z.); (S.J.)
| | - Shasha Jiang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao 266000, China; (X.Z.); (S.J.)
| | - Bin Wang
- Department of Special Medicine, School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao 266000, China;
- Correspondence: ; Tel.: +86-136-8532-6203
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22
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De Groof TWM, Elder EG, Siderius M, Heukers R, Sinclair JH, Smit MJ. Viral G Protein-Coupled Receptors: Attractive Targets for Herpesvirus-Associated Diseases. Pharmacol Rev 2021; 73:828-846. [PMID: 33692148 DOI: 10.1124/pharmrev.120.000186] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Herpesviruses are ubiquitous pathogens that establish lifelong, latent infections in their host. Spontaneous reactivation of herpesviruses is often asymptomatic or clinically manageable in healthy individuals, but reactivation events in immunocompromised or immunosuppressed individuals can lead to severe morbidity and mortality. Moreover, herpesvirus infections have been associated with multiple proliferative cardiovascular and post-transplant diseases. Herpesviruses encode viral G protein-coupled receptors (vGPCRs) that alter the host cell by hijacking cellular pathways and play important roles in the viral life cycle and these different disease settings. In this review, we discuss the pharmacological and signaling properties of these vGPCRs, their role in the viral life cycle, and their contribution in different diseases. Because of their prominent role, vGPCRs have emerged as promising drug targets, and the potential of vGPCR-targeting therapeutics is being explored. Overall, these vGPCRs can be considered as attractive targets moving forward in the development of antiviral, cancer, and/or cardiovascular disease treatments. SIGNIFICANCE STATEMENT: In the last decade, herpesvirus-encoded G protein-coupled receptors (GPCRs) have emerged as interesting drug targets with the growing understanding of their critical role in the viral life cycle and in different disease settings. This review presents the pharmacological properties of these viral receptors, their role in the viral life cycle and different diseases, and the emergence of therapeutics targeting viral GPCRs.
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Affiliation(s)
- Timo W M De Groof
- In Vivo Cellular and Molecular Imaging Laboratory (ICMI), Vrije Universiteit Brussel, Brussels, Belgium (T.W.M.D.G.); Department of Medicine, Addenbrooke's Hospital, University of Cambridge, Cambridge, United Kingdom (E.G.E., J.H.S.); Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute for Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands (M.S., R.H., M.J.S.); and QVQ Holding B.V., Utrecht, The Netherlands (R.H.)
| | - Elizabeth G Elder
- In Vivo Cellular and Molecular Imaging Laboratory (ICMI), Vrije Universiteit Brussel, Brussels, Belgium (T.W.M.D.G.); Department of Medicine, Addenbrooke's Hospital, University of Cambridge, Cambridge, United Kingdom (E.G.E., J.H.S.); Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute for Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands (M.S., R.H., M.J.S.); and QVQ Holding B.V., Utrecht, The Netherlands (R.H.)
| | - Marco Siderius
- In Vivo Cellular and Molecular Imaging Laboratory (ICMI), Vrije Universiteit Brussel, Brussels, Belgium (T.W.M.D.G.); Department of Medicine, Addenbrooke's Hospital, University of Cambridge, Cambridge, United Kingdom (E.G.E., J.H.S.); Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute for Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands (M.S., R.H., M.J.S.); and QVQ Holding B.V., Utrecht, The Netherlands (R.H.)
| | - Raimond Heukers
- In Vivo Cellular and Molecular Imaging Laboratory (ICMI), Vrije Universiteit Brussel, Brussels, Belgium (T.W.M.D.G.); Department of Medicine, Addenbrooke's Hospital, University of Cambridge, Cambridge, United Kingdom (E.G.E., J.H.S.); Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute for Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands (M.S., R.H., M.J.S.); and QVQ Holding B.V., Utrecht, The Netherlands (R.H.)
| | - John H Sinclair
- In Vivo Cellular and Molecular Imaging Laboratory (ICMI), Vrije Universiteit Brussel, Brussels, Belgium (T.W.M.D.G.); Department of Medicine, Addenbrooke's Hospital, University of Cambridge, Cambridge, United Kingdom (E.G.E., J.H.S.); Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute for Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands (M.S., R.H., M.J.S.); and QVQ Holding B.V., Utrecht, The Netherlands (R.H.)
| | - Martine J Smit
- In Vivo Cellular and Molecular Imaging Laboratory (ICMI), Vrije Universiteit Brussel, Brussels, Belgium (T.W.M.D.G.); Department of Medicine, Addenbrooke's Hospital, University of Cambridge, Cambridge, United Kingdom (E.G.E., J.H.S.); Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute for Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands (M.S., R.H., M.J.S.); and QVQ Holding B.V., Utrecht, The Netherlands (R.H.)
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23
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Human Cytomegalovirus and Autoimmune Diseases: Where Are We? Viruses 2021; 13:v13020260. [PMID: 33567734 PMCID: PMC7914970 DOI: 10.3390/v13020260] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/03/2021] [Accepted: 02/05/2021] [Indexed: 12/14/2022] Open
Abstract
Human cytomegalovirus (HCMV) is a ubiquitous double-stranded DNA virus belonging to the β-subgroup of the herpesvirus family. After the initial infection, the virus establishes latency in poorly differentiated myeloid precursors from where it can reactivate at later times to cause recurrences. In immunocompetent subjects, primary HCMV infection is usually asymptomatic, while in immunocompromised patients, HCMV infection can lead to severe, life-threatening diseases, whose clinical severity parallels the degree of immunosuppression. The existence of a strict interplay between HCMV and the immune system has led many to hypothesize that HCMV could also be involved in autoimmune diseases (ADs). Indeed, signs of active viral infection were later found in a variety of different ADs, such as rheumatological, neurological, enteric disorders, and metabolic diseases. In addition, HCMV infection has been frequently linked to increased production of autoantibodies, which play a driving role in AD progression, as observed in systemic lupus erythematosus (SLE) patients. Documented mechanisms of HCMV-associated autoimmunity include molecular mimicry, inflammation, and nonspecific B-cell activation. In this review, we summarize the available literature on the various ADs arising from or exacerbating upon HCMV infection, focusing on the potential role of HCMV-mediated immune activation at disease onset.
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24
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Fisher MA, Lloyd ML. A Review of Murine Cytomegalovirus as a Model for Human Cytomegalovirus Disease-Do Mice Lie? Int J Mol Sci 2020; 22:ijms22010214. [PMID: 33379272 PMCID: PMC7795257 DOI: 10.3390/ijms22010214] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 12/10/2020] [Accepted: 12/17/2020] [Indexed: 12/12/2022] Open
Abstract
Since murine cytomegalovirus (MCMV) was first described in 1954, it has been used to model human cytomegalovirus (HCMV) diseases. MCMV is a natural pathogen of mice that is present in wild mice populations and has been associated with diseases such as myocarditis. The species-specific nature of HCMV restricts most research to cell culture-based studies or to the investigation of non-invasive clinical samples, which may not be ideal for the study of disseminated disease. Initial MCMV research used a salivary gland-propagated virus administered via different routes of inoculation into a variety of mouse strains. This revealed that the genetic background of the laboratory mice affected the severity of disease and altered the extent of subsequent pathology. The advent of genetically modified mice and viruses has allowed new aspects of disease to be modeled and the opportunistic nature of HCMV infection to be confirmed. This review describes the different ways that MCMV has been used to model HCMV diseases and explores the continuing difficulty faced by researchers attempting to model HCMV congenital cytomegalovirus disease using the mouse model.
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Affiliation(s)
- Michelle A. Fisher
- Division of Infection and Immunity, School of Biomedical Sciences, The University of Western Australia, Nedlands 6009, Australia;
| | - Megan L. Lloyd
- Division of Infection and Immunity, School of Biomedical Sciences, The University of Western Australia, Nedlands 6009, Australia;
- Marshall Centre for Infectious Diseases Research and Training, Division of Infection and Immunity, School of Biomedical Sciences, The University of Western Australia, Nedlands 6009, Australia
- Correspondence:
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25
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Poole E, Neves TC, Oliveira MT, Sinclair J, da Silva MCC. Human Cytomegalovirus Interleukin 10 Homologs: Facing the Immune System. Front Cell Infect Microbiol 2020; 10:245. [PMID: 32582563 PMCID: PMC7296156 DOI: 10.3389/fcimb.2020.00245] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 04/27/2020] [Indexed: 12/12/2022] Open
Abstract
Human Cytomegalovirus (HCMV) can cause a variety of health disorders that can lead to death in immunocompromised individuals and neonates. The HCMV lifecycle comprises both a lytic (productive) and a latent (non-productive) phase. HCMV lytic infection occurs in a wide range of terminally differentiated cell types. HCMV latency has been less well-studied, but one characterized site of latency is in precursor cells of the myeloid lineage. All known viral genes are expressed during a lytic infection and a subset of these are also transcribed during latency. The UL111A gene which encodes the viral IL-10, a homolog of the human IL-10, is one of these genes. During infection, different transcript isoforms of UL111A are generated by alternative splicing. The most studied of the UL111A isoforms are cmvIL-10 (also termed the "A" transcript) and LAcmvIL-10 (also termed the "B" transcript), the latter being a well-characterized latency associated transcript. Both isoforms can downregulate MHC class II, however they differ in a number of other immunomodulatory properties, such as the ability to bind the IL10 receptor and induce signaling through STAT3. There are also a number of other isoforms which have been identified which are expressed by differential splicing during lytic infection termed C, D, E, F, and G, although these have been less extensively studied. HCMV uses the viral IL-10 proteins to manipulate the immune system during lytic and latent phases of infection. In this review, we will discuss the literature on the viral IL-10 transcripts identified to date, their encoded proteins and the structures of these proteins as well as the functional properties of all the different isoforms of viral IL-10.
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Affiliation(s)
- Emma Poole
- Department of Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Tainan Cerqueira Neves
- Center for Natural and Humanities Sciences, Federal University of ABC (UFABC), São Bernardo do Campo, Brazil
| | - Martha Trindade Oliveira
- Center for Natural and Humanities Sciences, Federal University of ABC (UFABC), São Bernardo do Campo, Brazil
| | - John Sinclair
- Department of Medicine, University of Cambridge, Cambridge, United Kingdom
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26
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Bonavita CM, White TM, Francis J, Cardin RD. Heart Dysfunction Following Long-Term Murine Cytomegalovirus Infection: Fibrosis, Hypertrophy, and Tachycardia. Viral Immunol 2020; 33:237-245. [PMID: 32286167 PMCID: PMC7185328 DOI: 10.1089/vim.2020.0007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Human cytomegalovirus (HCMV) is associated with increased risk of chronic diseases of the heart and vasculature, including myocarditis, atherosclerosis, and transplant vasculopathy. To investigate CMV infection of the heart, murine cytomegalovirus (MCMV) was used to evaluate both acute and latent infection and the subsequent phenotypic and functional consequences of infection. Female BALB/c mice were intraperitoneally (i.p.) inoculated with 1 × 106 pfu of MCMV and evaluated at 14 and 50 days postinfection (dpi). At each time point, echocardiography was used to evaluate cardiac function and histology was conducted for phenotypic evaluation. MCMV replication in the heart was detected as early as 3 dpi and was no longer detectable at 14 dpi. Infected animals had significant cardiac pathology at 14 and 50 dpi when compared to uninfected controls. Histology revealed fibrosis of the heart as early as 14 dpi and the presence of white fibrous deposits on the surface of the heart. Functional evaluation showed significantly increased heart rate and muscle thickening in the latently infected animals when compared to the control animals. At 50 dpi, latent virus was measured by explant reactivation assay, demonstrating that MCMV establishes latency and is capable of reactivation from the heart, similar to other tissues such as spleen and salivary glands. Collectively, these studies illustrate that MCMV infection results in phenotypic alterations within the heart as early as 14 dpi, which progress to functional abnormalities during latency. These findings are similar to sinus tachycardia and hypertrophy of the heart muscle observed in cases of HCMV-induced acute myocarditis.
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Affiliation(s)
- Cassandra M. Bonavita
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana
| | - Timothy M. White
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana
| | - Joseph Francis
- Department of Comparative Biological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana
| | - Rhonda D. Cardin
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana
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27
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Nehme Z, Pasquereau S, Herbein G. Targeting histone epigenetics to control viral infections. HISTONE MODIFICATIONS IN THERAPY 2020. [PMCID: PMC7453269 DOI: 10.1016/b978-0-12-816422-8.00011-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
During the past decades, many studies have significantly broadened our understanding of complex virus-host interactions to control chromatin structure and dynamics.1, 2 However, the role and impact of such modifications during viral infections is not fully revealed. Indeed, this type of regulation is bidirectional between the virus and the host. While viral replication and gene expression are significantly impacted by histone modifications on the viral chromatin,3 studies have shown that some viral pathogens dynamically manipulate cellular epigenetic factors to enhance their own survival and pathogenesis, as well as escape the immune system defense lines.4 In this dynamic, histone posttranslational modifications (PTMs) appear to play fundamental roles in the regulation of chromatin structure and recruitment of other factors.5 Genuinely, those PTMs play a vital role in lytic infection, latency reinforcement, or, conversely, viral reactivation.6 In this chapter, we will examine and review the involvement of histone modifications as well as their potential manipulation to control infections during various viral life cycle stages, highlighting their prospective implications in the clinical management of human immunodeficiency virus (HIV), herpes simplex virus (HSV), human cytomegalovirus (HCMV), hepatitis B and C viruses (HBV and HCV, respectively), Epstein–Barr virus (EBV), and other viral diseases. Targeting histone modifications is critical in setting the treatment of chronic viral infections with both lytic and latent stages (HIV, HCMV, HSV, RSV), virus-induced cancers (HBV, HCV, EBV, KSHV, HPV), and epidemic/emerging viruses (e.g. influenza virus, arboviruses).
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28
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Frascaroli G, Rossini G, Maltoni V, Bartoletti M, Ortolani P, Gredmark-Russ S, Gelsomino F, Moroni A, Silenzi S, Castellani G, Sambri V, Mastroianni A, Brune W, Varani S. Genetic and Functional Characterization of Toll-Like Receptor Responses in Immunocompetent Patients With CMV Mononucleosis. Front Cell Infect Microbiol 2020; 10:386. [PMID: 32850485 PMCID: PMC7426556 DOI: 10.3389/fcimb.2020.00386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 06/24/2020] [Indexed: 12/15/2022] Open
Abstract
Background: Human cytomegalovirus (CMV) modulates both innate and adaptive immune responses. However, limited data are available on the role of receptors of innate immunity, such as toll-like receptors (TLRs) in contributing to antiviral responses and inflammation. Objectives: The aim of this translational study was to characterize TLR responses in immunocompetent patients with primary and symptomatic CMV infection. Study Design: The study population consisted of 40 patients suffering from CMV mononucleosis and 124 blood donors included as controls. We evaluated the association between TLR2, 3, 4, 7 and 9 gene single nucleotide polymorphism (SNP) and susceptibility to symptomatic CMV infection in immunocompetent adults. Additionally, functional TLR-mediated cytokine responses in supernatants of short-term cultures of whole blood from patients with CMV mononucleosis and blood donors were evaluated. Results: TLR2 and TLR7/8 responses were altered in CMV infected patients as compared to healthy donors and were associated with the release of higher levels of the pro-inflammatory cytokines IL-6 and TNF-α, but not of the anti-inflammatory mediator IL-10. The analysis on the TLR SNPs indicated no difference between patients with CMV infection and the control group. Conclusions: No variation in the TLR2,3,4,7 and 9 genes was associated to the development of symptomatic CMV infection in immunocompetent adults. Nevertheless, TLR-mediated responses in CMV-infected patients appeared to be skewed toward a pro-inflammatory profile, which may contribute to the development of inflammatory symptoms during the CMV mononucleotic syndrome.
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Affiliation(s)
- Giada Frascaroli
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
- *Correspondence: Giada Frascaroli
| | - Giada Rossini
- Unit of Microbiology, St. Orsola-Malpighi University Hospital, Bologna, Italy
| | - Virginia Maltoni
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Michele Bartoletti
- Infectious Diseases Unit, Department of Medical and Surgical Science, University of Bologna, Bologna, Italy
| | | | - Sara Gredmark-Russ
- Center for Infectious Medicine, ANA Futura, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
- Division of Infectious Diseases, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Francesco Gelsomino
- Unit of Microbiology, St. Orsola-Malpighi University Hospital, Bologna, Italy
| | - Alessandra Moroni
- Unit of Microbiology, St. Orsola-Malpighi University Hospital, Bologna, Italy
| | - Silvia Silenzi
- Unit of Microbiology, St. Orsola-Malpighi University Hospital, Bologna, Italy
| | - Gastone Castellani
- Department of Physics and Astronomy and Galvani Center for Biocomplexity, University of Bologna, Bologna, Italy
| | - Vittorio Sambri
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
- Unit of Microbiology, The Romagna Hub Laboratory, Pievesestina, Italy
| | - Antonio Mastroianni
- Unit of Infectious and Tropical Diseases, St. Annunziata Hospital, Cosenza, Italy
- Unit of Infectious Diseases, G.B. Morgagni-Pierantoni Hospital, Forlì, Italy
| | - Wolfram Brune
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Stefania Varani
- Unit of Microbiology, St. Orsola-Malpighi University Hospital, Bologna, Italy
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
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Mu H, Wang Z, Zhang X, Qian D, Wang Y, Jiang S, Liang S, Wang B. HCMV-encoded IE2 induces anxiety-depression and cognitive impairment in UL122 genetically-modified mice. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2019; 12:4087-4095. [PMID: 31933804 PMCID: PMC6949793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 09/24/2019] [Indexed: 06/10/2023]
Abstract
Although there is a high risk of mood disorders and cognitive impairment in congenital human cytomegalovirus (HCMV) infections, the molecular pathogenetic mechanisms of HCMV have not yet been fully determined. In this study, we show that immediate-early 2 (IE2) protein modulates affective and cognitive behaviors. We used a UL122 genetically-modified mice model that can continuously express IE2 protein. We used a series of animal behavior tests to determine the relationship between HCMV-encoded IE2 and psychiatric disorders. In open-field, elevated plus-maze test and tail suspension tests, we found that UL122 genetically-modified mice displayed more anxiety-depression behavior than did wild-type (WT) mice. The Morris water maze test and novel object recognition test showed that spatial learning and memory were lower in UL122 genetically-modified mice model than in WT mice. Level of fibroblast growth factor 2 (FGF2) protein in the hippocampus cornu ammonia areas (CA1, CA3) and dentate gyrus (DG) of the experimental group was significantly lower, consistent with immunohistochemical staining and western blot for neuron-specific nuclear protein (NeuN) and glial fibrillary acidic protein (GFAP). Levels of SYP and PSD-95 proteins were lower in the hippocampus UL122 genetically-modified mice. These data suggest the importance of HCMV-encoded IE2 for studying anxiety and depression behaviors and for the spatial learning and memory. This would help to further explain the molecular pathological mechanism of psychiatric disorders caused by HCMV infection.
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Affiliation(s)
- Haiyu Mu
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao UniversityQingdao 266071, Shandong, P. R. China
| | - Zhifei Wang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao UniversityQingdao 266071, Shandong, P. R. China
| | - Xianjuan Zhang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao UniversityQingdao 266071, Shandong, P. R. China
| | - Dongmeng Qian
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao UniversityQingdao 266071, Shandong, P. R. China
| | - Yuyang Wang
- Department of Endocrinology & Metabolism, Affiliated Hospital of Qingdao UniversityQingdao 266071, Shandong, P. R. China
| | - Shasha Jiang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao UniversityQingdao 266071, Shandong, P. R. China
| | - Shuzhen Liang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao UniversityQingdao 266071, Shandong, P. R. China
| | - Bin Wang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao UniversityQingdao 266071, Shandong, P. R. China
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30
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Cytomegalovirus is a tumor-associated virus: armed and dangerous. Curr Opin Virol 2019; 39:49-59. [PMID: 31525538 DOI: 10.1016/j.coviro.2019.08.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 08/05/2019] [Accepted: 08/16/2019] [Indexed: 12/12/2022]
Abstract
Human cytomegalovirus (HCMV) gene products are present in multiple human malignancies, often in specific association with tumor cells and tumor vasculature. Emerging evidence from human and mouse models of CMV infection in cancer indicate that CMV can transform epithelial cells, promote epithelial to mesenchymal transition (EMT) and mesenchymal to epithelial (MET) in tumor cells, promote tumor angiogenesis and proliferation and incapacitate the host anti-CMV immune response. This review will discuss the increasing role of HCMV in human cancer by demonstrating how HCMV is well suited for impacting major themes in oncogenesis including initiation, promotion, progression, metastasis and immune evasion. What emerges is a picture of an extremely versatile pathogen that may play a significant role in human cancer progression and death.
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