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Silva-Santos Y, Pagni RL, Gamon THM, de Azevedo MSP, Bielavsky M, Darido MLG, de Oliveira DBL, de Souza EE, Wrenger C, Durigon EL, Luvizotto MCR, Ackerman HC, Marinho CRF, Epiphanio S, Carvalho LJM. Lisinopril increases lung ACE2 levels and SARS-CoV-2 viral load and decreases inflammation but not disease severity in experimental COVID-19. Front Pharmacol 2024; 15:1414406. [PMID: 39070798 PMCID: PMC11282493 DOI: 10.3389/fphar.2024.1414406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 06/04/2024] [Indexed: 07/30/2024] Open
Abstract
COVID-19 causes more severe and frequently fatal disease in patients with pre-existing comorbidities such as hypertension and heart disease. SARS-CoV-2 virus enters host cells through the angiotensin-converting enzyme 2 (ACE2), which is fundamental in maintaining arterial pressure through the renin-angiotensin system (RAS). Hypertensive patients commonly use medications such as angiotensin-converting enzyme inhibitors (ACEi), which can modulate the expression of ACE2 and, therefore, potentially impact the susceptibility and severity of SARS-CoV-2 infection. Here we assessed whether treatment of ACE2-humanized (K18-hACE2) mice with the ACEi Lisinopril affects lung ACE2 levels and the outcome of experimental COVID-19. K18-hACE2 mice were treated for 21 days with Lisinopril 10 mg/kg and were then infected with 105 PFU of SARS-CoV-2 (Wuhan strain). Body weight, clinical score, respiratory function, survival, lung ACE2 levels, viral load, lung histology, and cytokine (IL-6, IL-33, and TNF-α) levels were assessed. Mice treated with Lisinopril for 21 days showed increased levels of ACE2 in the lungs. Infection with SARS-CoV-2 led to massive decrease in lung ACE2 levels at 3 days post-infection (dpi) in treated and untreated animals, but Lisinopril-treated mice showed a fast recovery (5dpi) of ACE2 levels. Higher ACE2 levels in Lisinopril-treated mice led to remarkably higher lung viral loads at 3 and 6/7dpi. Lisinopril-treated mice showed decreased levels of the pro-inflammatory cytokines IL-6 and TNF-α in the serum and lungs at 6/7dpi. Marginal improvements in body weight, clinical score and survival were observed in Lisinopril-treated mice. No differences between treated and untreated infected mice were observed in respiratory function and lung histology. Lisinopril treatment showed both deleterious (higher viral loads) and beneficial (anti-inflammatory and probably anti-constrictory and anti-coagulant) effects in experimental COVID-19. These effects seem to compensate each other, resulting in marginal beneficial effects in terms of outcome for Lisinopril-treated animals.
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Affiliation(s)
- Yasmin Silva-Santos
- Laboratory of Malaria Cellular and Molecular Immunopathology, Faculty of Pharmaceutical Sciences, Department of Clinical and Toxicological Analysis, University of São Paulo, São Paulo, Brazil
- Laboratory of Malaria Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Roberta Liberato Pagni
- Immunology Laboratory, Heart Institute, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
| | - Thais Helena Martins Gamon
- Laboratory of Clinical and Molecular Virology, Institute of Biomedical Sciences, Department of Microbiology, University of São Paulo, São Paulo, Brazil
| | - Marcela Santiago Pacheco de Azevedo
- Laboratory of Clinical and Molecular Virology, Institute of Biomedical Sciences, Department of Microbiology, University of São Paulo, São Paulo, Brazil
- Laboratory of Experimental Immunoparasitology, Institute of Biomedical Sciences, Department of Parasitology, University of São Paulo, São Paulo, Brazil
| | - Mônica Bielavsky
- Laboratory of Malaria Cellular and Molecular Immunopathology, Faculty of Pharmaceutical Sciences, Department of Clinical and Toxicological Analysis, University of São Paulo, São Paulo, Brazil
| | - Maria Laura Goussain Darido
- Laboratory of Clinical and Molecular Virology, Institute of Biomedical Sciences, Department of Microbiology, University of São Paulo, São Paulo, Brazil
| | - Danielle Bruna Leal de Oliveira
- Laboratory of Clinical and Molecular Virology, Institute of Biomedical Sciences, Department of Microbiology, University of São Paulo, São Paulo, Brazil
- Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Edmarcia Elisa de Souza
- Unit for Drug Discovery, Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Carsten Wrenger
- Unit for Drug Discovery, Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Edson Luiz Durigon
- Laboratory of Clinical and Molecular Virology, Institute of Biomedical Sciences, Department of Microbiology, University of São Paulo, São Paulo, Brazil
| | | | - Hans Christian Ackerman
- Physiology Unit, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, Rockville, MD, United States
| | - Claudio Romero Farias Marinho
- Laboratory of Experimental Immunoparasitology, Institute of Biomedical Sciences, Department of Parasitology, University of São Paulo, São Paulo, Brazil
| | - Sabrina Epiphanio
- Laboratory of Malaria Cellular and Molecular Immunopathology, Faculty of Pharmaceutical Sciences, Department of Clinical and Toxicological Analysis, University of São Paulo, São Paulo, Brazil
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Moschovou K, Antoniou M, Chontzopoulou E, Papavasileiou KD, Melagraki G, Afantitis A, Mavromoustakos T. Exploring the Binding Effects of Natural Products and Antihypertensive Drugs on SARS-CoV-2: An In Silico Investigation of Main Protease and Spike Protein. Int J Mol Sci 2023; 24:15894. [PMID: 37958877 PMCID: PMC10649947 DOI: 10.3390/ijms242115894] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/27/2023] [Accepted: 10/28/2023] [Indexed: 11/15/2023] Open
Abstract
In this in silico study, we conducted an in-depth exploration of the potential of natural products and antihypertensive molecules that could serve as inhibitors targeting the key proteins of the SARS-CoV-2 virus: the main protease (Mpro) and the spike (S) protein. By utilizing Induced Fit Docking (IFD), we assessed the binding affinities of the molecules under study to these crucial viral components. To further comprehend the stability and molecular interactions of the "protein-ligand" complexes that derived from docking studies, we performed molecular dynamics (MD) simulations, shedding light on the molecular basis of potential drug candidates for COVID-19 treatment. Moreover, we employed Molecular Mechanics Generalized Born Surface Area (MM-GBSA) calculations on all "protein-ligand" complexes, underscoring the robust binding capabilities of rosmarinic acid, curcumin, and quercetin against Mpro, and salvianolic acid b, rosmarinic acid, and quercetin toward the S protein. Furthermore, in order to expand our search for potent inhibitors, we conducted a structure similarity analysis, using the Enalos Suite, based on the molecules that indicated the most favored results in the in silico studies. The Enalos Suite generated 115 structurally similar compounds to salvianolic acid, rosmarinic acid, and quercetin. These compounds underwent IFD calculations, leading to the identification of two salvianolic acid analogues that exhibited strong binding to all the examined binding sites in both proteins, showcasing their potential as multi-target inhibitors. These findings introduce exciting possibilities for the development of novel therapeutic agents aiming to effectively disrupt the SARS-CoV-2 virus lifecycle.
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Affiliation(s)
- Kalliopi Moschovou
- Department of Chemistry, National and Kapodistrian University of Athens, 15771 Athens, Greece
| | - Maria Antoniou
- Department of ChemoInformatics, NovaMechanics Ltd., 1046 Nicosia, Cyprus
- Department of Chemoinformatics, NovaMechanics MIKE, 18536 Piraeus, Greece
| | - Eleni Chontzopoulou
- Department of Chemistry, National and Kapodistrian University of Athens, 15771 Athens, Greece
| | - Konstantinos D. Papavasileiou
- Department of ChemoInformatics, NovaMechanics Ltd., 1046 Nicosia, Cyprus
- Department of Chemoinformatics, NovaMechanics MIKE, 18536 Piraeus, Greece
| | - Georgia Melagraki
- Division of Physical Sciences & Applications, Hellenic Military Academy, 16672 Vari, Greece
| | - Antreas Afantitis
- Department of ChemoInformatics, NovaMechanics Ltd., 1046 Nicosia, Cyprus
- Department of Chemoinformatics, NovaMechanics MIKE, 18536 Piraeus, Greece
| | - Thomas Mavromoustakos
- Department of Chemistry, National and Kapodistrian University of Athens, 15771 Athens, Greece
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Pre-Existing Comorbidities Diminish the Likelihood of Seropositivity after SARS-CoV-2 Vaccination. Vaccines (Basel) 2022; 10:vaccines10081363. [PMID: 36016250 PMCID: PMC9416221 DOI: 10.3390/vaccines10081363] [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: 08/01/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND The impact of chronic health conditions (CHCs) on serostatus post-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccination is unknown. METHODS We assessed serostatus post-SARS-CoV-2 vaccination among fully vaccinated adult residents of Jefferson County, Kentucky, USA, from April 2021 to August 2021. Serostatus was determined by qualitative analysis of SARS-CoV-2-specific Spike IgG antibodies via enzyme-linked immunoassay (ELISA) in peripheral blood samples. RESULTS Of the 5178 fully vaccinated participants, 51 were seronegative and 5127 were seropositive. Chronic kidney disease (CKD) and autoimmune disease showed the highest association with negative serostatus in fully vaccinated individuals. The absence of any CHC was strongly associated with positive serostatus. The risk of negative serostatus increased as the total number of pre-existing CHCs increased. Similarly, the use of two or more CHC-related medications was associated with seronegative status. CONCLUSIONS The presence of any CHC, especially CKD or autoimmune disease, increased the likelihood of seronegative status among individuals who were fully vaccinated to SAR-CoV-2. This risk increased with a concurrent increase in number of comorbidities, especially with multiple medications. The absence of any CHC was protective and increased the likelihood of a positive serological response. These results will help develop appropriate guidelines for booster doses and targeted vaccination programs.
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Loader J, Taylor FC, Lampa E, Sundström J. Renin-Angiotensin Aldosterone System Inhibitors and COVID-19: A Systematic Review and Meta-Analysis Revealing Critical Bias Across a Body of Observational Research. J Am Heart Assoc 2022; 11:e025289. [PMID: 35624081 PMCID: PMC9238740 DOI: 10.1161/jaha.122.025289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 04/07/2022] [Indexed: 12/18/2022]
Abstract
Background Renin-angiotensin aldosterone system (RAAS) inhibitor-COVID-19 studies, observational in design, appear to use biased methods that can distort the interaction between RAAS inhibitor use and COVID-19 risk. This study assessed the extent of bias in that research and reevaluated RAAS inhibitor-COVID-19 associations in studies without critical risk of bias. Methods and Results Searches were performed in MEDLINE, EMBASE, and CINAHL databases (December 1, 2019 to October 21, 2021) identifying studies that compared the risk of infection and/or severe COVID-19 outcomes between those using or not using RAAS inhibitors (ie, angiotensin-converting enzyme inhibitors or angiotensin II type-I receptor blockers). Weighted hazard ratios (HR) and 95% CIs were extracted and pooled in fixed-effects meta-analyses, only from studies without critical risk of bias that assessed severe COVID-19 outcomes. Of 169 relevant studies, 164 had critical risks of bias and were excluded. Ultimately, only two studies presented data relevant to the meta-analysis. In 1 351 633 people with uncomplicated hypertension using a RAAS inhibitor, calcium channel blocker, or thiazide diuretic in monotherapy, the risk of hospitalization (angiotensin-converting enzyme inhibitor: HR, 0.76; 95% CI, 0.66-0.87; P<0.001; angiotensin II type-I receptor blockers: HR, 0.86; 95% CI, 0.77-0.97; P=0.015) and intubation or death (angiotensin-converting enzyme inhibitor: HR, 0.64; 95% CI, 0.48-0.85; P=0.002; angiotensin II type-I receptor blockers: HR, 0.74; 95% CI, 0.58-0.95; P=0.019) with COVID-19 was lower in those using a RAAS inhibitor. However, these protective effects are probably not clinically relevant. Conclusions This study reveals the critical risk of bias that exists across almost an entire body of COVID-19 research, raising an important question: Were research methods and/or peer-review processes temporarily weakened during the surge of COVID-19 research or is this lack of rigor a systemic problem that also exists outside pandemic-based research? Registration URL: www.crd.york.ac.uk/prospero/; Unique identifier: CRD42021237859.
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Affiliation(s)
- Jordan Loader
- Department of Medical SciencesUppsala UniversityUppsalaSweden
- Inserm U1300 – HP2CHU Grenoble AlpesGrenobleFrance
| | - Frances C. Taylor
- Baker Heart and Diabetes InstituteMelbourneVictoriaAustralia
- Mary MacKillop Institute for Health Research, Australian Catholic UniversityMelbourneVictoriaAustralia
| | - Erik Lampa
- Department of Medical SciencesUppsala UniversityUppsalaSweden
| | - Johan Sundström
- Department of Medical SciencesUppsala UniversityUppsalaSweden
- The George Institute for Global HealthUniversity of New South WalesSydneyAustralia
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