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Si M, An M, Xia Z, Mo X, Lu J, He H, Wang C. Synthesis and anti-SARS-CoV-2 activity of amino acid modified cephalotaxine derivatives. Chem Biol Drug Des 2024; 103:e14566. [PMID: 38858134 DOI: 10.1111/cbdd.14566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 05/13/2024] [Accepted: 06/03/2024] [Indexed: 06/12/2024]
Abstract
The severe acute respiratory syndrome coronavirus (SARS-CoV-2) pandemic has triggered a significant impact on global public health security, it is urgent to develop effective antiviral drugs. Previous studies have found that binding to ACE2 is a key step in the invasion of SARS-CoV-2 into host cells, so virus invasion can be inhibited by blocking ACE2, but there are few reports on this kind of specific inhibitor. Our previous study found that Harringtonine (HT) can inhibit the entry of SARS-CoV-2 spike pseudovirus into ACE2h cells, but its relatively high cytotoxicity limits its further development. Amino acid modification of the active components can increase their solubility and reduce their cytotoxicity. Therefore, in this study, seven new derivatives were synthesized by amino acid modification of its core structure Cephalotaxine. The target compounds were evaluated by cell viability assay and the SARS-CoV-2 spike pseudovirus entry assay. Compound CET-1 significantly inhibited the entry of pseudovirus into ACE2h cells and showed less cytotoxicity than HT. Molecular docking results showed that CET-1 could bind TYR83, an important residue of ACE2, just like HT. In conclusion, our study provided a novel compound with more potential activity and lower toxicity than HT on inhibiting the SARS-CoV-2 spike pseudovirus infection, which makes it possible to be a lead compound as an antiviral drug in the future.
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Affiliation(s)
- Min Si
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Meidi An
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Zhaomin Xia
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Xiaoxue Mo
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Jiayu Lu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Huaizhen He
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Cheng Wang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Aktaş E, Özdemir Özgentürk N. A comprehensive examination of ACE2 receptor and prediction of spike glycoprotein and ACE2 interaction based on in silico analysis of ACE2 receptor. J Biomol Struct Dyn 2024; 42:4412-4428. [PMID: 37349943 DOI: 10.1080/07391102.2023.2220814] [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: 02/12/2023] [Accepted: 05/28/2023] [Indexed: 06/24/2023]
Abstract
The ACE2 receptor plays a vital role not only in the SARS-CoV-induced epidemic but also in various other diseases, including cardiovascular diseases and ARDS. While studies have explored the interactions between ACE2 and SARS-CoV proteins, comprehensive research utilizing bioinformatic tools on the ACE2 protein has been lacking. The one aim of present study was to extensively analyze the regions of the ACE2 protein. After utilizing all bioinformatics tools especially G104 and L108 regions on ACE2 were come forward. The results of our analysis revealed that possible mutations or deletions in the G104 and L108 regions play a critical role in both the biological functioning and the determination of the chemical-physical properties of ACE2. Additionally, these regions were found to be more susceptible to mutations or deletions compared to other regions of the ACE2 protein. Notably, the randomly selected peptide, LQQNGSSVLS (100-109), which includes G104 and L108, exhibited a crucial role in binding the RBD of the spike protein, as supported by docking scores. Furthermore, both MDs and iMODs results provided evidence that G104 and L108 influence the dynamics of ACE2-spike complexes. This study is expected to offer a new perspective on the ACE2-SARS-CoV interaction and other research areas where ACE2 plays a significant role, such as biotechnology (protein engineering, enzyme optimization), medicine (RAS, pulmonary and cardiac diseases), and basic research (structural motifs, stabilizing protein folds, or facilitating important inter molecular contacts, protein's proper structure and function).Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Emre Aktaş
- Faculty of Art and Science, Molecular Biology and Genetics, Yıldız Technical University, Istanbul, Turkey
| | - Nehir Özdemir Özgentürk
- Faculty of Art and Science, Molecular Biology and Genetics, Yıldız Technical University, Istanbul, Turkey
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Kakavandi E, Sadeghi K, Shayestehpour M, Mirhendi H, Rahimi Foroushani A, Mokhtari-Azad T, Shafiei Jandaghi NZ, Yavarian J. Evaluation of angiotensin converting enzyme 2 (ACE2), angiotensin II (Ang II), miR-141-3p, and miR-421 levels in SARS-CoV-2 patients: a case-control study. BMC Infect Dis 2024; 24:429. [PMID: 38649818 PMCID: PMC11036566 DOI: 10.1186/s12879-024-09310-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 04/10/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a highly contagious virus that uses angiotensin converting enzyme 2 (ACE2), a pivotal member of the renin-angiotensin system (RAS), as its cell-entry receptor. Another member of the RAS, angiotensin II (Ang II), is the major biologically active component in this system. There is growing evidence suggesting that serum miRNAs could serve as prognostic biomarkers for SARS-CoV-2 infection and regulate ACE2 expression. Therefore, the aim of this study is to evaluate the changes in the serum levels of sACE2 and Ang II, as well as the expression level of miR-141-3p and miR-421 in SARS-CoV-2 positive and negative subjects. METHODS In the present study, the serum levels of sACE2 and Ang II were measured in 94 SARS-CoV-2 positive patients and 94 SARS-CoV-2 negative subjects with some symptoms similar to those of SARS-CoV-2 positive patients using the ELISA method. In addition, the expression level of miR-141-3p and miR-421 as ACE2 regulators and biomarkers was evaluated using quantitative real-time PCR (qRT-PCR) method. RESULTS The mean serum sACE2 concentration in the SARS-CoV-2-positive group was 3.268 ± 0.410 ng/ml, whereas in the SARS-CoV-2 negative group, it was 3.564 ± 0.437 ng/ml. Additionally, the mean serum Ang II level in the SARS-CoV-2 positive and negative groups were 60.67 ± 6.192 ng/L and 67.97 ± 6.837 ng/L, respectively. However, there was no significant difference in the serum levels of sACE2 (P value: 0.516) and Ang II (P value: 0.134) between the SARS-CoV-2 positive and negative groups. Meanwhile, our findings indicated that the expression levels of miR-141-3p and miR-421 in SARS-CoV-2 positive group were significantly lower and higher than SARS-CoV-2 negative group, respectively (P value < 0.001). CONCLUSIONS Taken together, the results of this study showed that the serum levels of sACE2 and Ang II in SARS-CoV-2 positive and negative subjects were not significantly different, but the expression levels of miR-141-3p and miR-421 were altered in SARS-CoV-2 positive patients which need more investigation to be used as biomarkers for COVID-19 diagnosis.
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Affiliation(s)
- Ehsan Kakavandi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Kaveh Sadeghi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Shayestehpour
- Department of Bacteriology and Virology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hossein Mirhendi
- Department of Medical Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Abbas Rahimi Foroushani
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Talat Mokhtari-Azad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Jila Yavarian
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
- Research Center for Antibiotic Stewardship and Antimicrobial Resistance, Tehran University of Medical Sciences, Tehran, Iran.
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Lebedin M, Ratswohl C, Garg A, Schips M, García CV, Spatt L, Thibeault C, Obermayer B, Weiner J, Velásquez IM, Gerhard C, Stubbemann P, Hanitsch LG, Pischon T, Witzenrath M, Sander LE, Kurth F, Meyer-Hermann M, de la Rosa K. Soluble ACE2 correlates with severe COVID-19 and can impair antibody responses. iScience 2024; 27:109330. [PMID: 38496296 PMCID: PMC10940809 DOI: 10.1016/j.isci.2024.109330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 11/25/2023] [Accepted: 02/20/2024] [Indexed: 03/19/2024] Open
Abstract
Identifying immune modulators that impact neutralizing antibody responses against severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) is of great relevance. We postulated that high serum concentrations of soluble angiotensin-converting enzyme 2 (sACE2) might mask the spike and interfere with antibody maturation toward the SARS-CoV-2-receptor-binding motif (RBM). We tested 717 longitudinal samples from 295 COVID-19 patients and showed a 2- to 10-fold increase of enzymatically active sACE2 (a-sACE2), with up to 1 μg/mL total sACE2 in moderate and severe patients. Fifty percent of COVID-19 sera inhibited ACE2 activity, in contrast to 1.3% of healthy donors and 4% of non-COVID-19 pneumonia patients. A mild inverse correlation of a-sACE2 with RBM-directed serum antibodies was observed. In silico, we show that sACE2 concentrations measured in COVID-19 sera can disrupt germinal center formation and inhibit timely production of high-affinity antibodies. We suggest that sACE2 is a biomarker for COVID-19 and that soluble receptors may contribute to immune suppression informing vaccine design.
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Affiliation(s)
- Mikhail Lebedin
- Max-Delbück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Straße 10, 13125 Berlin, Germany
- Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Christoph Ratswohl
- Max-Delbück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Straße 10, 13125 Berlin, Germany
- Free University of Berlin, Department of Biology, Chemistry and Pharmacy, 14195 Berlin, Berlin, Germany
| | - Amar Garg
- Helmholtz Centre for Infection Research (HZI), Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Marta Schips
- Helmholtz Centre for Infection Research (HZI), Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Clara Vázquez García
- Max-Delbück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Straße 10, 13125 Berlin, Germany
- Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Lisa Spatt
- Max-Delbück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Straße 10, 13125 Berlin, Germany
| | - Charlotte Thibeault
- Department of Infectious Diseases, Respiratory Medicine and Critical Care, Charité – Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Benedikt Obermayer
- Core Unit Bioinformatics, Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - January Weiner
- Core Unit Bioinformatics, Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Ilais Moreno Velásquez
- Molecular Epidemiology Research Group, Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Straße 10, 13125 Berlin, Germany
| | - Cathrin Gerhard
- Max-Delbück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Straße 10, 13125 Berlin, Germany
| | - Paula Stubbemann
- Department of Infectious Diseases, Respiratory Medicine and Critical Care, Charité – Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Leif-Gunnar Hanitsch
- Department of Infectious Diseases, Respiratory Medicine and Critical Care, Charité – Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Tobias Pischon
- Charité-Universitätsmedizin Berlin, Berlin, Germany
- Molecular Epidemiology Research Group, Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Straße 10, 13125 Berlin, Germany
- Biobank Technology Platform, Max-Delbrueck-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Straße 10, 13125 Berlin, Germany
| | - Martin Witzenrath
- Department of Infectious Diseases, Respiratory Medicine and Critical Care, Charité – Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- German Center for Lung Research (DZL), 35392 Gießen, Germany
- CAPNETZ STIFTUNG, 30625 Hannover, Germany
| | - Leif Erik Sander
- Department of Infectious Diseases, Respiratory Medicine and Critical Care, Charité – Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- German Center for Lung Research (DZL), 35392 Gießen, Germany
- Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Florian Kurth
- Department of Infectious Diseases, Respiratory Medicine and Critical Care, Charité – Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- German Center for Lung Research (DZL), 35392 Gießen, Germany
| | - Michael Meyer-Hermann
- Helmholtz Centre for Infection Research (HZI), Inhoffenstraße 7, 38124 Braunschweig, Germany
- Institute for Biochemistry, Biotechnology and Bioinformatics, Technische Universität Braunschweig, Braunschweig, Germany
| | - Kathrin de la Rosa
- Max-Delbück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Straße 10, 13125 Berlin, Germany
- Charité-Universitätsmedizin Berlin, Berlin, Germany
- Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, 10117 Berlin, Germany
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Yue J, Cao J, Liu L, Yin L, Li M. Clinical characteristics of 4,520 paediatric patients infected with the SARS-CoV-2 omicron variant, in Xi'an, China. Front Pediatr 2024; 12:1325562. [PMID: 38464898 PMCID: PMC10920270 DOI: 10.3389/fped.2024.1325562] [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: 10/21/2023] [Accepted: 01/30/2024] [Indexed: 03/12/2024] Open
Abstract
Background and objective Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has broad tissue tropism and high transmission, which are likely to perpetuate the pandemic. The study aim to analyze the clinicopathogenic characteristics in paediatric patients. Methods In this single-centre study, we retrospectively included all confirmed cases infected by SARS-CoV-2 infection at Xi'an Children's Hospital, China, from 1 December to 31 December 2022. The demographic, clinical, laboratory, and radiological features of the patients were analysed. Results A total of 4,520 paediatric patients with SARS-CoV-2 omicron variant infections were included. Of these, 3,861 (85.36%) were outpatients, 659 (14.64%) were hospitalised patients, and nine patients (0.20%) died. Of the nine patients who died, five were diagnosed with acute necrotising encephalopathy (ANE). The most common symptoms were fever in 4,275 (94.59%) patients, cough in 1,320 (29.20%) patients, convulsions in 610 (13.50%) patients, vomiting in 410 (9.07%) patients, runny nose/coryza in 277 (6.13%) patients, hoarseness of voice in 273 (6.04%) patients. A blood cell analysis showed a slight elevation of monocytes (mean: 11.14 ± 0.07%). The main diagnoses for both outpatients and inpatients were respiratory infection with multisystem manifestations. Conclusions A high incidence of convulsions is a typical characteristic of children infected with SARS-CoV-2. Five of the nine COVID-19 fatalities were associated with ANE. This indicates that nervous system damage in children with SARS-CoV-2 infection is more significant.
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Affiliation(s)
- Jingwei Yue
- Department of Emergency, Xi’an Children's Hospital (Xi'an Jiaotong University Affiliated Children’s Hospital), Xi'an, Shaanxi, China
| | - Jin Cao
- Department of Gastroenterology, Xi'an Tus-Children’s Hospital, Xi'an, Shaanxi, China
| | - Lin Liu
- Department of Emergency, Xi’an Children's Hospital (Xi'an Jiaotong University Affiliated Children’s Hospital), Xi'an, Shaanxi, China
| | - Li Yin
- Department of Emergency, Xi’an Children's Hospital (Xi'an Jiaotong University Affiliated Children’s Hospital), Xi'an, Shaanxi, China
| | - Mingyue Li
- Department of Emergency, Xi’an Children's Hospital (Xi'an Jiaotong University Affiliated Children’s Hospital), Xi'an, Shaanxi, China
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Chen Z, Sun Q, Yang Y, Nie X, Xiang W, Ren Y, Le T. Aptamer-based diagnostic and therapeutic approaches for animal viruses: A review. Int J Biol Macromol 2024; 257:128677. [PMID: 38072350 DOI: 10.1016/j.ijbiomac.2023.128677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 11/28/2023] [Accepted: 12/06/2023] [Indexed: 01/27/2024]
Abstract
Animal diseases often have significant consequences due to the unclear and time-consuming diagnosis process. Furthermore, the emergence of new viral infections and drug-resistant pathogens has further complicated the diagnosis and treatment of viral diseases. Aptamers, which are obtained through systematic evolution of ligands by exponential enrichment (SELEX) technology, provide a promising solution as they enable specific identification and binding to targets, facilitating pathogen detection and the development of novel therapeutics. This review presented an overview of aptasensors for animal virus detection, discussed the antiviral activity and mechanisms of aptamers, and highlighted advancements in aptamer-based antiviral research following the COVID-19 pandemic. Additionally, the challenges and prospects of aptamer-based virus diagnosis and treatment research were explored. Although this review was not exhaustive, it offered valuable insights into the progress of aptamer-based antiviral drug research, target mechanisms, as well as the development of novel antiviral drugs and biosensors.
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Affiliation(s)
- Zhuoer Chen
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, PR China
| | - Qi Sun
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, PR China
| | - Ying Yang
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, PR China
| | - Xunqing Nie
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, PR China
| | - Wenyu Xiang
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, PR China
| | - Yueyang Ren
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, PR China
| | - Tao Le
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, PR China.
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7
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Xue M, Lin Z, Zhang T, Cheng ZJ, Lin R, Guo B, Zeng Y, Hu F, Li F, Zheng P, Huang H, Li N, Zhao Q, Sun B, Tang X. ERC-BiP Functional Protein Pathway for Assessing Endoplasmic Reticulum Stress Induced by SARS-CoV-2 Replication after Cell Invasion. THE CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY = JOURNAL CANADIEN DES MALADIES INFECTIEUSES ET DE LA MICROBIOLOGIE MEDICALE 2023; 2023:7253779. [PMID: 37849973 PMCID: PMC10578982 DOI: 10.1155/2023/7253779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 06/24/2023] [Accepted: 09/15/2023] [Indexed: 10/19/2023]
Abstract
Background SARS-CoV-2 induces apoptosis and amplifies the immune response by continuously stressing the endoplasmic reticulum (ER) after invading cells. This study aimed to establish a protein-metabolic pathway associated with ER dysfunction based on the invasion mechanism of SARS-CoV-2. Methods This study included 17 healthy people and 46 COVID-19 patients, including 38 mild patients and 8 severe patients. Proteomics and metabolomics were measured in the patient plasma collected at admission and one week after admission. The patients were further divided into the aggravation and remission groups based on disease progression within one week of admission. Results Cross-sectional comparison showed that endoplasmic reticulum molecular chaperone-binding immunoglobulin protein (ERC-BiP), angiotensinogen (AGT), ceramide acid (Cer), and C-reactive protein (CRP) levels were significantly increased in COVID-19 patients, while the sphingomyelin (SM) level was significantly decreased (P < 0.05). In addition, longitudinal comparative analysis found that the temporal fold changes of ERC-BiP, AGT, Cer, CRP, and SM were significantly different between the patients in the aggravation and remission groups (P < 0.05). ERC-BiP, AGT, and Cer levels were significantly increased in aggravation patients, while SM was significantly decreased (P < 0.05). Meanwhile, ERC-BiP was significantly correlated with AGT (r = 0.439; P < 0.001). Conclusions ERC-BiP can be used as a core index to reflect the degree of ER stress in COVID-19 patients, which is of great value for evaluating the functional state of cells. A functional pathway for AGT/ERC-BiP/glycolysis can directly assess the activation of unfolded protein reactions. The ERC-BiP pathway is closer to the intracellular replication pathway of SARS-CoV-2 and may help in the development of predictive protocols for COVID-19 exacerbation.
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Affiliation(s)
- Mingshan Xue
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou 510060, China
- Guangzhou Laboratory, XingDaoHuanBei Road, Guangzhou International Bio-Island, Guangzhou 510005, Guangdong Province, China
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou 510120, China
| | - Zhiwei Lin
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou 510120, China
| | - Teng Zhang
- Cancer Centre, Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau, China
- MoE Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macau, China
| | - Zhangkai J. Cheng
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou 510120, China
| | - Runpei Lin
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou 510120, China
| | - Baojun Guo
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou 510120, China
- School of Medicine, Henan University, Kaifeng 475000, Henan, China
| | - Yifeng Zeng
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou 510120, China
| | - Fengyu Hu
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou 510060, China
| | - Feng Li
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou 510060, China
| | - Peiyan Zheng
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou 510120, China
| | - Huimin Huang
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou 510120, China
| | - Ning Li
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou 510120, China
| | - Qi Zhao
- Cancer Centre, Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau, China
- MoE Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macau, China
| | - Baoqing Sun
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou 510120, China
| | - Xiaoping Tang
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou 510060, China
- Guangzhou Laboratory, XingDaoHuanBei Road, Guangzhou International Bio-Island, Guangzhou 510005, Guangdong Province, China
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Reveret L, Leclerc M, Emond V, Tremblay C, Loiselle A, Bourassa P, Bennett DA, Hébert SS, Calon F. Higher angiotensin-converting enzyme 2 (ACE2) levels in the brain of individuals with Alzheimer's disease. Acta Neuropathol Commun 2023; 11:159. [PMID: 37784209 PMCID: PMC10544218 DOI: 10.1186/s40478-023-01647-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 10/04/2023] Open
Abstract
Cognitive decline due to Alzheimer's disease (AD) is frequent in the geriatric population, which has been disproportionately affected by the COVID-19 pandemic. In this study, we investigated the levels of angiotensin-converting enzyme 2 (ACE2), a regulator of the renin-angiotensin system and the main entry receptor of SARS-CoV-2 in host cells, in postmortem parietal cortex samples from two independent AD cohorts, totalling 142 persons. Higher concentrations of ACE2 protein (p < 0.01) and mRNA (p < 0.01) were found in individuals with a neuropathological diagnosis of AD compared to age-matched healthy control subjects. Brain levels of soluble ACE2 were inversely associated with cognitive scores (p = 0.02) and markers of pericytes (PDGFRβ, p = 0.02 and ANPEP, p = 0.007), but positively correlated with concentrations of soluble amyloid-β peptides (Aβ) (p = 0.01) and insoluble phospho-tau (S396/404, p = 0.002). However, no significant differences in ACE2 were observed in the 3xTg-AD mouse model of tau and Aβ neuropathology. Results from immunofluorescence and Western blots showed that ACE2 protein is predominantly localized in microvessels in the mouse brain whereas it is more frequently found in neurons in the human brain. The present data suggest that higher levels of soluble ACE2 in the human brain may contribute to AD, but their role in CNS infection by SARS-CoV-2 remains unclear.
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Affiliation(s)
- Louise Reveret
- Faculty of Pharmacy, Laval University, Quebec, QC, Canada
- CHU de Quebec Research Center, 2705, Boulevard Laurier, Room T2-05, Québec, QC, G1V 4G2, Canada
| | - Manon Leclerc
- Faculty of Pharmacy, Laval University, Quebec, QC, Canada
- CHU de Quebec Research Center, 2705, Boulevard Laurier, Room T2-05, Québec, QC, G1V 4G2, Canada
| | - Vincent Emond
- CHU de Quebec Research Center, 2705, Boulevard Laurier, Room T2-05, Québec, QC, G1V 4G2, Canada
| | - Cyntia Tremblay
- CHU de Quebec Research Center, 2705, Boulevard Laurier, Room T2-05, Québec, QC, G1V 4G2, Canada
| | - Andréanne Loiselle
- CHU de Quebec Research Center, 2705, Boulevard Laurier, Room T2-05, Québec, QC, G1V 4G2, Canada
| | - Philippe Bourassa
- Faculty of Pharmacy, Laval University, Quebec, QC, Canada
- CHU de Quebec Research Center, 2705, Boulevard Laurier, Room T2-05, Québec, QC, G1V 4G2, Canada
| | - David A Bennett
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, USA
| | - Sébastien S Hébert
- CHU de Quebec Research Center, 2705, Boulevard Laurier, Room T2-05, Québec, QC, G1V 4G2, Canada
- Faculty of Medicine, Laval University, Quebec, QC, Canada
| | - Frédéric Calon
- Faculty of Pharmacy, Laval University, Quebec, QC, Canada.
- CHU de Quebec Research Center, 2705, Boulevard Laurier, Room T2-05, Québec, QC, G1V 4G2, Canada.
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9
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Shevchuk O, Pak A, Palii S, Ivankiv Y, Kozak K, Korda M, Vari SG. Blood ACE2 Protein Level Correlates with COVID-19 Severity. Int J Mol Sci 2023; 24:13957. [PMID: 37762258 PMCID: PMC10530872 DOI: 10.3390/ijms241813957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 06/22/2023] [Accepted: 09/09/2023] [Indexed: 09/29/2023] Open
Abstract
ACE2's impact on the severity of COVID-19 is widely discussed but still controversial. To estimate its role in aspects of the main risk factors and comorbidities, we involved post-COVID-19 patients in Ternopil region (Ukraine). The recruitment period was from July 2020 to December 2021. Medical records, treatment modalities, and outcomes were recorded and analyzed. The serum human ACE2 protein was measured with Cusabio ELISA kits (Houston, TX, USA). Statistical analysis was performed with SPSS21.0 software (SPSS Inc., Chicago, IL, USA). The level of the ACE2 serum protein was significantly higher (p < 0.001) in patients with mild symptoms compared to a more severe course of the disease, and inversely had changed from 1 to 90 days after recovery. In patients with mild COVID-19, ACE2 levels significantly decreased over time, while among critical patients, it increased by 34.1 percent. Such results could be explained by ACE2 shedding from tissues into circulation. Loss of the membrane-bound form of the enzyme decreases the virus' entry into cells. Our studies did not identify a sex-related ACE2 serum level correlation. The most common comorbidities were hypertension, cardiovascular diseases, respiratory diseases, and diabetes mellitus. All abovementioned comorbidities except respiratory diseases contribute to the severity of the disease and correlate with ACE2 blood serum levels.
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Affiliation(s)
- Oksana Shevchuk
- Department of Pharmacology and Clinical Pharmacology, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine; (A.P.); (S.P.); (Y.I.); (K.K.); (M.K.)
| | - Anastasia Pak
- Department of Pharmacology and Clinical Pharmacology, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine; (A.P.); (S.P.); (Y.I.); (K.K.); (M.K.)
| | - Svitlana Palii
- Department of Pharmacology and Clinical Pharmacology, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine; (A.P.); (S.P.); (Y.I.); (K.K.); (M.K.)
| | - Yana Ivankiv
- Department of Pharmacology and Clinical Pharmacology, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine; (A.P.); (S.P.); (Y.I.); (K.K.); (M.K.)
| | - Kateryna Kozak
- Department of Pharmacology and Clinical Pharmacology, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine; (A.P.); (S.P.); (Y.I.); (K.K.); (M.K.)
| | - Mykhaylo Korda
- Department of Pharmacology and Clinical Pharmacology, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine; (A.P.); (S.P.); (Y.I.); (K.K.); (M.K.)
| | - Sandor G. Vari
- International Research and Innovation in Medicine Program, Cedars–Sinai Medical Center, Los Angeles, CA 90048, USA;
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10
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Sidhwani SK, Mirza T, Khatoon A, Shaikh F, Khan R, Shaikh OA, Nashwan AJ. Inflammatory markers and COVID-19 disease progression. J Infect Public Health 2023; 16:1386-1391. [PMID: 37442012 PMCID: PMC10290960 DOI: 10.1016/j.jiph.2023.06.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 06/02/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND The COVID-19 pandemic has resulted in a global humanitarian crisis. Despite ongoing research, transmission risks and many disease characteristics remained unclear. Most patients have displayed elevated levels of certain inflammatory markers, which we sought to investigate further in relation to disease severity. The aim of this study was to examine the correlation between inflammatory markers and the severity of COVID-19 among patients. METHODS We conducted a cross-sectional study from April to September 2020, involving 143 COVID-19 PCR-positive patients from Ziauddin Hospital. Electronic patient records provided data on demographics, clinical status, and laboratory results. RESULTS The majority of PCR-positive patients were elderly males with comorbidities such as diabetes and hypertension. Almost all patients exhibited increased levels of various inflammatory markers, with procalcitonin (97.2%) being the most common. Statistically significant differences were observed in the levels of TLC (p = 0.005), CRP (p = 0.001), LDH (p = 0.001), Ferritin (p = 0.001), D-dimer (p = 0.001), and procalcitonin (p = 0.028), in relation to COVID-19 severity. CONCLUSIONS The data suggest a significant association between levels of inflammatory markers and COVID-19 severity. All markers, except procalcitonin, demonstrated a significant correlation with disease severity. These results could enhance our understanding of COVID-19 pathogenesis and help predict and manage severe cases.
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Affiliation(s)
| | - Talat Mirza
- Department of Molecular Medicine, Ziauddin University, Pakistan; Department of Research, Ziauddin University, Pakistan.
| | - Ambrina Khatoon
- Department of Molecular Medicine, Ziauddin University, Pakistan.
| | - Fouzia Shaikh
- Department of Pathology, Ziauddin University, Pakistan.
| | - Rizma Khan
- Department of Molecular Genetics, Ziauddin University, Pakistan.
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11
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Wang X, Ma J, Lin D, Dong X, Wu J, Bai Y, Zhang D, Gao J. The risk factors of postoperative hypoxemia in patients with Stanford type A acute aortic dissection. Medicine (Baltimore) 2023; 102:e34704. [PMID: 37603505 PMCID: PMC10443739 DOI: 10.1097/md.0000000000034704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 07/20/2023] [Indexed: 08/23/2023] Open
Abstract
Hypoxemia is one of the most common complications in patients after Stanford type A acute aortic dissection surgery. The aim of this study was to investigate the association of circulating ANG II level with postoperative hypoxemia and to identify the risk factors for postoperative hypoxemia in Stanford type A acute aortic dissection patients. In this study, 88 patients who underwent Stanford type A acute aortic dissection surgery were enrolled. Postoperative hypoxemia is defined by the oxygenation index (OI). Perioperative clinical data were collected and the serum ANG II and sACE2 levels were measured. The differences in the basic characteristics, intraoperative details, biochemical parameters, laboratory test data and clinical outcomes were compared between the hypoxemia group and the non-hypoxemia group by univariate analysis. Multivariate logistic regression analysis was performed on the variables with P < .1 in univariate analysis or that were considered clinically important to identify risk factors for postoperative hypoxemia. Twenty-five patients (28.4%) were considered to have postoperative hypoxemia (OI ≤ 200 mm Hg). The ANG II concentration remained a risk factor associated with postoperative hypoxemia [OR = 1.018, 95% CI (1.003-1.034), P = .022]. The other risk factors remaining in the logistic regression model were BMI [OR = 1.417, 95% CI (1.159-1.733), P = .001] and cTnI [OR = 1.003, 95% CI (1.000-1.005), P = .032]. Elevated levels of ANG II, BMI and cTnI are risk factors for postoperative hypoxemia in patients with Stanford type A acute aortic dissection.
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Affiliation(s)
- Xu’an Wang
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jun Ma
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Duomao Lin
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Xiuhua Dong
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jinjing Wu
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yang Bai
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Dongni Zhang
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Junwei Gao
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
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12
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di Filippo L, Uygur M, Locatelli M, Nannipieri F, Frara S, Giustina A. Low vitamin D levels predict outcomes of COVID-19 in patients with both severe and non-severe disease at hospitalization. Endocrine 2023; 80:669-683. [PMID: 36854858 PMCID: PMC9974397 DOI: 10.1007/s12020-023-03331-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 02/12/2023] [Indexed: 03/02/2023]
Abstract
PURPOSE Low vitamin D in COVID-19 have been related to worse outcomes. However, most of the studies conducted so far were not-controlled and retrospective, including biases potentially influencing this association. We evaluated 25(OH)vitamin D levels of patients with both severe and non-severe disease at hospital-admission, and in a cohort of control subjects. Moreover, we evaluated sACE-2 levels to investigate the mechanisms underlying the association between vitamin D and COVID-19. METHODS COVID-19 patients were enrolled in a matched for age, sex and comorbidities 1:1-ratio based on the presence/or not of respiratory-distress/severe-disease at hospital-admission. Control matched subjects were enrolled from an outpatient-setting. RESULTS Seventy-three COVID-19 patients (36 severe and 37 non-severe) and 30 control subjects were included. We observed a higher vitamin D deficiency (<20 ng/mL) prevalence in COVID-19 patients than control subjects (75% vs 43%). No differences were found regarding 25(OH)vitamin D and sACE-2 levels between patients with and without severe-disease at study entry. During the disease-course, in the severe group a life-threatening disease occurred in 17 patients (47.2%), and, in the non-severe group, a worsening disease occurred in 10 (27%). 25(OH)vitamin D levels, at admission, were negatively correlated with sACE-2 levels, and were lower in patients whose disease worsened as compared to those in whom it did not, independently from the disease severity at admission. In multivariate-analysis, lower 25(OH)vitamin D resulted as an independent risk factor for disease worsening. CONCLUSIONS 25(OH)vitamin D levels at hospital-admission strongly predicted the occurrence of worsening outcomes in COVID-19 independently of the disease severity at presentation.
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Affiliation(s)
- Luigi di Filippo
- Institute of Endocrine and Metabolic Sciences, IRCCS Ospedale San Raffaele, Università Vita-Salute San Raffaele, Milan, Italy
| | - Melin Uygur
- Institute of Endocrine and Metabolic Sciences, IRCCS Ospedale San Raffaele, Università Vita-Salute San Raffaele, Milan, Italy
| | - Massimo Locatelli
- Laboratory Medicine Service, IRCCS Ospedale San Raffaele, Milan, Italy
| | | | - Stefano Frara
- Institute of Endocrine and Metabolic Sciences, IRCCS Ospedale San Raffaele, Università Vita-Salute San Raffaele, Milan, Italy
| | - Andrea Giustina
- Institute of Endocrine and Metabolic Sciences, IRCCS Ospedale San Raffaele, Università Vita-Salute San Raffaele, Milan, Italy.
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13
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D'Souza F, Buzzetti R, Pozzilli P. Diabetes, COVID-19, and questions unsolved. Diabetes Metab Res Rev 2023:e3666. [PMID: 37209039 DOI: 10.1002/dmrr.3666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 04/13/2023] [Accepted: 05/05/2023] [Indexed: 05/22/2023]
Abstract
Recent evidence suggests a role for Diabetes Mellitus in adverse outcomes from COVID-19 infection; yet the underlying mechanisms are not clear. Moreover, attention has turned to prophylactic vaccination to protect the population from COVID-19-related illness and mortality. We performed a comprehensive peer-reviewed literature search on an array of key terms concerning diabetes and COVID-19 seeking to address the following questions: 1. What role does diabetes play as an accelerator for adverse outcomes in COVID-19?; 2. What mechanisms underlie the differences in outcomes seen in people with diabetes?; 3. Are vaccines against COVID-19 efficacious in people with diabetes? The current literature demonstrates that diabetes is associated with an increased risk of adverse outcomes from COVID-19 infection, and post-COVID sequelae. Potential mechanisms include dysregulation of Angiotensin Converting Enzyme 2, Furin, CD147, and impaired immune cell responses. Hyperglycaemia is a key exacerbator of these mechanisms. Limited studies are available on COVID-19 vaccination in people with diabetes; however, the current literature suggests that vaccination is protective against adverse outcomes for this population. In summary, people with diabetes are a high-risk group that should be prioritised in vaccination efforts. Glycaemic optimisation is paramount to protecting this group from COVID-19-associated risk. Unsolved questions remain as to the molecular mechanisms underlying the adverse outcomes seen in people with diabetes; the functional impact of post-COVID symptoms on people with diabetes, their persistence, and management; how long-term vaccine efficacy is affected by diabetes, and the antibody levels that confer protection from adverse outcomes in COVID-19.
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Affiliation(s)
- Felecia D'Souza
- University College London Hospitals NHS Trust, London, UK
- Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Raffaella Buzzetti
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Paolo Pozzilli
- Department of Endocrinology & Diabetes, University Campus Bio-Medico, Rome, Italy
- Centre for Immunobiology, Barts and the London School of Medicine, Queen Mary University of London, London, UK
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14
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Petersen E, Chudakova D, Erdyneeva D, Zorigt D, Shabalina E, Gudkov D, Karalkin P, Reshetov I, Mynbaev OA. COVID-19-The Shift of Homeostasis into Oncopathology or Chronic Fibrosis in Terms of Female Reproductive System Involvement. Int J Mol Sci 2023; 24:ijms24108579. [PMID: 37239926 DOI: 10.3390/ijms24108579] [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: 01/17/2023] [Revised: 04/26/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
The COVID-19 pandemic caused by the SARS-CoV-2 coronavirus remains a global public health concern due to the systemic nature of the infection and its long-term consequences, many of which remain to be elucidated. SARS-CoV-2 targets endothelial cells and blood vessels, altering the tissue microenvironment, its secretion, immune-cell subpopulations, the extracellular matrix, and the molecular composition and mechanical properties. The female reproductive system has high regenerative potential, but can accumulate damage, including due to SARS-CoV-2. COVID-19 is profibrotic and can change the tissue microenvironment toward an oncogenic niche. This makes COVID-19 and its consequences one of the potential regulators of a homeostasis shift toward oncopathology and fibrosis in the tissues of the female reproductive system. We are looking at SARS-CoV-2-induced changes at all levels in the female reproductive system.
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Affiliation(s)
- Elena Petersen
- Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
| | - Daria Chudakova
- Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
| | - Daiana Erdyneeva
- Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
| | - Dulamsuren Zorigt
- Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
| | | | - Denis Gudkov
- Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
| | - Pavel Karalkin
- P.A. Herzen Moscow Research Institute of Oncology, 125284 Moscow, Russia
- Institute of Cluster Oncology, I.M. Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Igor Reshetov
- Institute of Cluster Oncology, I.M. Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Ospan A Mynbaev
- Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
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15
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Wang H, Yuan Z, Pavel MA, Jablonski SM, Jablonski J, Hobson R, Valente S, Reddy CB, Hansen SB. The role of high cholesterol in SARS-CoV-2 infectivity. J Biol Chem 2023:104763. [PMID: 37119851 PMCID: PMC10140059 DOI: 10.1016/j.jbc.2023.104763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/11/2023] [Accepted: 04/24/2023] [Indexed: 05/01/2023] Open
Abstract
Coronavirus disease 2019 (COVID19) is a respiratory infection caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The virus binds to angiotensinogen converting enzyme 2 (ACE2) which mediates viral entry into mammalian cells. COVID19 is notably severe in elderly and those with underlying chronic conditions. The cause of selective severity is not well understood. Here we show cholesterol and the signaling lipid phosphatidyl-inositol 4,5 bisphosphate (PIP2) regulate viral infectivity through the localization of ACE2's into nanoscopic (<200 nm) lipid clusters. Uptake of cholesterol into cell membranes (a condition common to chronic disease) causes ACE2 to move from PIP2 lipids to endocytic ganglioside (GM1) lipids, where the virus is optimally located for viral entry. In mice, age, and high fat diet increase lung tissue cholesterol by up to 40%. And in smokers with chronic disease, cholesterol is elevated two-fold, a magnitude of change that dramatically increases infectivity of virus in cell culture. We conclude increasing the ACE2 location near endocytic lipids increases viral infectivity and may help explain the selective severity of COVID-19 in aged and diseased populations.
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Affiliation(s)
- Hao Wang
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL, 33458, USA; Department of Neuroscience, The Scripps Research Institute, Jupiter, FL, 33458, USA; Skaggs Graduate School of Chemical and Biological Sciences, The Scripps Research Institute, Jupiter, FL, 33458, USA
| | - Zixuan Yuan
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL, 33458, USA; Department of Neuroscience, The Scripps Research Institute, Jupiter, FL, 33458, USA; Skaggs Graduate School of Chemical and Biological Sciences, The Scripps Research Institute, Jupiter, FL, 33458, USA
| | - Mahmud Arif Pavel
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL, 33458, USA; Department of Neuroscience, The Scripps Research Institute, Jupiter, FL, 33458, USA
| | | | - Joseph Jablonski
- Department of Immunology and Virology, The Scripps Research Institute, Jupiter, FL, 33458, USA
| | - Robert Hobson
- Bruker Nano Surfaces, Fitchburg, WI, 53711, USA; Department of Biology, University of Utah, Salt Lake City, UT, 84112, USA
| | - Susana Valente
- Department of Immunology and Virology, The Scripps Research Institute, Jupiter, FL, 33458, USA
| | - Chakravarthy B Reddy
- Department of Internal Medicine, University of Utah Health Sciences Center, Salt Lake City, UT, 84112, USA
| | - Scott B Hansen
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL, 33458, USA; Department of Neuroscience, The Scripps Research Institute, Jupiter, FL, 33458, USA.
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16
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Zhang H, Lv P, Jiang J, Liu Y, Yan R, Shu S, Hu B, Xiao H, Cai K, Yuan S, Li Y. Advances in developing ACE2 derivatives against SARS-CoV-2. THE LANCET. MICROBE 2023; 4:e369-e378. [PMID: 36934742 PMCID: PMC10019897 DOI: 10.1016/s2666-5247(23)00011-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 01/19/2023] [Accepted: 01/19/2023] [Indexed: 03/17/2023]
Abstract
Extensive immune evasion of SARS-CoV-2 rendered therapeutic antibodies ineffective in the COVID-19 pandemic. Propagating SARS-CoV-2 variants are characterised by immune evasion capacity through key amino acid mutations, but can still bind human angiotensin-converting enzyme 2 (ACE2) through the spike protein and are, thus, sensitive to ACE2-mimicking decoys as inhibitors. In this Review, we examine advances in the development of ACE2 derivatives from the past 3 years, including the recombinant ACE2 proteins, ACE2-loaded extracellular vesicles, ACE2-mimicking antibodies, and peptide or mini-protein mimetics of ACE2. Several ACE2 derivatives are granted potent neutralisation efficacy against SARS-CoV-2 variants that rival or surpass endogenous antibodies by various auxiliary techniques such as chemical modification and practical recombinant design. The derivatives also represent enhanced production efficiency and improved bioavailability. In addition to these derivatives of ACE2, new effective therapeutics against SARS-CoV-2 variants are expected to be developed.
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Affiliation(s)
- Haoran Zhang
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - Panjing Lv
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - Jingrui Jiang
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - Yahui Liu
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - Ruixi Yan
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - Sainan Shu
- Department of Pediatrics, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Bing Hu
- Institute of Health Inspection and Testing, Hubei Provincial Center for Disease Control and Prevention, Wuhan, China
| | - Han Xiao
- Institute of Maternal and Child Health, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kun Cai
- Institute of Health Inspection and Testing, Hubei Provincial Center for Disease Control and Prevention, Wuhan, China
| | - Shuai Yuan
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China; University of Chinese Academy of Sciences, Beijing, China; Hubei Jiangxia Laboratory, Wuhan, China.
| | - Yan Li
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China; Department of Pediatrics, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China.
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17
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COVID-19-Induced Myocarditis: Pathophysiological Roles of ACE2 and Toll-like Receptors. Int J Mol Sci 2023; 24:ijms24065374. [PMID: 36982447 PMCID: PMC10049267 DOI: 10.3390/ijms24065374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/03/2023] [Accepted: 03/07/2023] [Indexed: 03/14/2023] Open
Abstract
The clinical manifestations of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection responsible for coronavirus disease 2019 (COVID-19) commonly include dyspnoea and fatigue, and they primarily involve the lungs. However, extra-pulmonary organ dysfunctions, particularly affecting the cardiovascular system, have also been observed following COVID-19 infection. In this context, several cardiac complications have been reported, including hypertension, thromboembolism, arrythmia and heart failure, with myocardial injury and myocarditis being the most frequent. These secondary myocardial inflammatory responses appear to be associated with a poorer disease course and increased mortality in patients with severe COVID-19. In addition, numerous episodes of myocarditis have been reported as a complication of COVID-19 mRNA vaccinations, especially in young adult males. Changes in the cell surface expression of angiotensin-converting enzyme 2 (ACE2) and direct injury to cardiomyocytes resulting from exaggerated immune responses to COVID-19 are just some of the mechanisms that may explain the pathogenesis of COVID-19-induced myocarditis. Here, we review the pathophysiological mechanisms underlying myocarditis associated with COVID-19 infection, with a particular focus on the involvement of ACE2 and Toll-like receptors (TLRs).
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18
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Delta (B1.617.2) variant of SARS-CoV-2 induces severe neurotropic patterns in K18-hACE2 mice. Sci Rep 2023; 13:3303. [PMID: 36849513 PMCID: PMC9970970 DOI: 10.1038/s41598-023-29909-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 02/13/2023] [Indexed: 03/01/2023] Open
Abstract
A highly contagious virus, severe acute respiratory syndrome coronavirus 2, caused the coronavirus disease 19 (COVID-19) pandemic (SARS-CoV-2). SARS-CoV-2 genetic variants have been reported to circulate throughout the COVID-19 pandemic. COVID-19 symptoms include respiratory symptoms, fever, muscle pain, and breathing difficulty. In addition, up to 30% of COVID-19 patients experience neurological complications such as headaches, nausea, stroke, and anosmia. However, the neurotropism of SARS-CoV-2 infection remains largely unknown. This study investigated the neurotropic patterns between the B1.617.2 (Delta) and Hu-1 variants (Wuhan, early strain) in K18-hACE2 mice. Despite both the variants inducing similar pathogenic patterns in various organs, B1.617.2-infected K18-hACE2 mice demonstrated a higher range of disease phenotypes such as weight loss, lethality, and conjunctivitis when compared to those in Hu-1-infected mice. In addition, histopathological analysis revealed that B1.617.2 infects the brain of K18-hACE2 mice more rapidly and effectively than Hu-1. Finally, we discovered that, in B1.617.2-infected mice, the early activation of various signature genes involved innate cytokines and that the necrosis-related response was most pronounced than that in Hu-1-infected mice. The present findings indicate the neuroinvasive properties of SARS-CoV-2 variants in K18-hACE2 mice and link them to fatal neuro-dissemination during the disease onset.
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19
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Beijnen EMS, Odumade OA, Haren SDV. Molecular Determinants of the Early Life Immune Response to COVID-19 Infection and Immunization. Vaccines (Basel) 2023; 11:vaccines11030509. [PMID: 36992093 DOI: 10.3390/vaccines11030509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/11/2023] [Accepted: 02/18/2023] [Indexed: 02/25/2023] Open
Abstract
Clinical manifestations from primary COVID infection in children are generally less severe as compared to adults, and severe pediatric cases occur predominantly in children with underlying medical conditions. However, despite the lower incidence of disease severity, the burden of COVID-19 in children is not negligible. Throughout the course of the pandemic, the case incidence in children has substantially increased, with estimated cumulative rates of SARS-CoV-2 infection and COVID-19 symptomatic illness in children comparable to those in adults. Vaccination is a key approach to enhance immunogenicity and protection against SARS-CoV-2. Although the immune system of children is functionally distinct from that of other age groups, vaccine development specific for the pediatric population has mostly been limited to dose-titration of formulations that were developed primarily for adults. In this review, we summarize the literature pertaining to age-specific differences in COVID-19 pathogenesis and clinical manifestation. In addition, we review molecular distinctions in how the early life immune system responds to infection and vaccination. Finally, we discuss recent advances in development of pediatric COVID-19 vaccines and provide future directions for basic and translational research in this area.
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Affiliation(s)
- Elisabeth M S Beijnen
- Precision Vaccines Program, Division of Infectious Diseases, Boston Children's Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Oludare A Odumade
- Precision Vaccines Program, Division of Infectious Diseases, Boston Children's Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
- Department of Pediatrics, Division of Medicine Critical Care, Boston Children's Hospital, Boston, MA 02115, USA
| | - Simon D van Haren
- Precision Vaccines Program, Division of Infectious Diseases, Boston Children's Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
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20
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How the Competition for Cysteine May Promote Infection of SARS-CoV-2 by Triggering Oxidative Stress. Antioxidants (Basel) 2023; 12:antiox12020483. [PMID: 36830041 PMCID: PMC9952211 DOI: 10.3390/antiox12020483] [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: 12/06/2022] [Revised: 02/07/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023] Open
Abstract
SARS-CoV-2 induces a broad range of clinical manifestations. Besides the main receptor, ACE2, other putative receptors and co-receptors have been described and could become genuinely relevant to explain the different tropism manifested by new variants. In this study, we propose a biochemical model envisaging the competition for cysteine as a key mechanism promoting the infection and the selection of host receptors. The SARS-CoV-2 infection produces ROS and triggers a massive biosynthesis of proteins rich in cysteine; if this amino acid becomes limiting, glutathione levels are depleted and cannot control oxidative stress. Hence, infection succeeds. A receptor should be recognized as a marker of suitable intracellular conditions, namely the full availability of amino acids except for low cysteine. First, we carried out a comparative investigation of SARS-CoV-2 proteins and human ACE2. Then, using hierarchical cluster protein analysis, we searched for similarities between all human proteins and spike produced by the latest variant, Omicron BA.1. We found 32 human proteins very close to spike in terms of amino acid content. Most of these potential SARS-CoV-2 receptors have less cysteine than spike. We suggest that these proteins could signal an intracellular shortage of cysteine, predicting a burst of oxidative stress when used as viral entry mediators.
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21
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Louise R, Manon L, Vincent E, Andréanne L, Philippe B, Cyntia T, Bennett DA, Sébastien H, Frédéric C. Higher Angiotensin I Converting Enzyme 2 (ACE2) levels in the brain of individuals with Alzheimer's disease. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.17.524254. [PMID: 36711734 PMCID: PMC9882134 DOI: 10.1101/2023.01.17.524254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a major cause of death in the elderly. Cognitive decline due to Alzheimer's disease (AD) is frequent in the geriatric population disproportionately affected by the COVID-19 pandemic. Interestingly, central nervous system (CNS) manifestations have been reported in SARS-CoV-2-infected patients. In this study, we investigated the levels of Angiotensin I Converting Enzyme 2 (ACE2), the main entry receptor of SARS-COV-2 in cells, in postmortem parietal cortex samples from two independent AD cohorts, totalling 142 persons. Higher concentrations of ACE2 protein and mRNA were found in individuals with a neuropathological diagnosis of AD compared to age-matched healthy control subjects. Brain levels of soluble ACE2 were inversely associated with cognitive scores (p = 0.02), markers of pericytes (PDGFRβ, p=0.02 and ANPEP, p = 0.007) and caveolin1 (p = 0.03), but positively correlated with soluble amyloid-β peptides (Aβ) concentrations (p = 0.01) and insoluble phospho- tau (S396/404, p = 0.002). No significant differences in ACE2 were observed in the 3xTgAD mouse model of tau and Aβ neuropathology. Results from immunofluorescence and Western blots showed that ACE2 protein is mainly localized in neurons in the human brain but predominantly in microvessels in the mouse brain. The present data show that an AD diagnosis is associated with higher levels of soluble ACE2 in the human brain, which might contribute to a higher risk of CNS SARS-CoV-2 infection.
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Affiliation(s)
- Reveret Louise
- Faculty of pharmacy, Laval University, Quebec, QC, Canada
- CHU de Quebec Research Center, Quebec, QC, Canada
| | - Leclerc Manon
- Faculty of pharmacy, Laval University, Quebec, QC, Canada
- CHU de Quebec Research Center, Quebec, QC, Canada
| | | | | | - Bourassa Philippe
- Faculty of pharmacy, Laval University, Quebec, QC, Canada
- CHU de Quebec Research Center, Quebec, QC, Canada
| | | | - David A Bennett
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, USA
| | - Hébert Sébastien
- CHU de Quebec Research Center, Quebec, QC, Canada
- Faculty of medicine, Laval University, Quebec, QC, Canada
| | - Calon Frédéric
- Faculty of pharmacy, Laval University, Quebec, QC, Canada
- CHU de Quebec Research Center, Quebec, QC, Canada
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22
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Nejat R, Torshizi MF, Najafi DJ. S Protein, ACE2 and Host Cell Proteases in SARS-CoV-2 Cell Entry and Infectivity; Is Soluble ACE2 a Two Blade Sword? A Narrative Review. Vaccines (Basel) 2023; 11:vaccines11020204. [PMID: 36851081 PMCID: PMC9968219 DOI: 10.3390/vaccines11020204] [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: 12/01/2022] [Revised: 01/07/2023] [Accepted: 01/12/2023] [Indexed: 01/19/2023] Open
Abstract
Since the spread of the deadly virus SARS-CoV-2 in late 2019, researchers have restlessly sought to unravel how the virus enters the host cells. Some proteins on each side of the interaction between the virus and the host cells are involved as the major contributors to this process: (1) the nano-machine spike protein on behalf of the virus, (2) angiotensin converting enzyme II, the mono-carboxypeptidase and the key component of renin angiotensin system on behalf of the host cell, (3) some host proteases and proteins exploited by SARS-CoV-2. In this review, the complex process of SARS-CoV-2 entrance into the host cells with the contribution of the involved host proteins as well as the sequential conformational changes in the spike protein tending to increase the probability of complexification of the latter with angiotensin converting enzyme II, the receptor of the virus on the host cells, are discussed. Moreover, the release of the catalytic ectodomain of angiotensin converting enzyme II as its soluble form in the extracellular space and its positive or negative impact on the infectivity of the virus are considered.
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Affiliation(s)
- Reza Nejat
- Department of Anesthesiology and Critical Care Medicine, Laleh Hospital, Tehran 1467684595, Iran
- Correspondence:
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23
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Naderi N, Rahimzadeh M. The Role of Soluble ACE2 as a Prognostic Marker in Severe COVID-19: A Brief Meta-Analysis. Endocr Metab Immune Disord Drug Targets 2023; 23:70-76. [PMID: 35747972 DOI: 10.2174/1871530322666220623121922] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 03/18/2022] [Accepted: 03/21/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND The recently emerged novel coronavirus, severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), has posed a serious threat to public health, and there is an urgent need to establish tools that can aid the clinician in the evaluation and management of highrisk patients. This meta-analysis aimed to investigate the potential of sACE2 (soluble angiotensinconverting enzyme 2) as a prognostic biomarker in COVID-19. METHODS A comprehensive search of PubMed/MEDLINE, Cochrane, and Google Scholar, was performed until May 26, 2021. Data extraction and quality assessment of the study were independently conducted by the authors. Finally, 6 studies were included in this meta-analysis. RESULTS ACE-2 serum or plasma levels were compared between COVID-19 patients and healthy controls. ACE-2 level was not significantly different between severe COVID-19 patients and healthy controls (SMD = 1.2; 95% CI: -1.3-1.5; P = 0.86), severe and non-severe COVID-19 patients (SMD = 0.3; 95% CI: -0.06-0.7; P = 0.1), and severe COVID-19 patients and healthy controls (SMD = 0.6; 95% CI: -1.1-2.3; P = 0.5). CONCLUSIONS We cautiously propose that circulating levels of ACE2 cannot be used as a biomarker to assess disease severity in COVID-19 patients.
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Affiliation(s)
- Nadereh Naderi
- Department of Immunology, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Mahsa Rahimzadeh
- Infectious and Tropical Diseases Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.,Department of Biochemistry, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
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24
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Robertson J, Nellgård B, Hultén LM, Nilsson S, Dalla K, Börjesson M, Zetterberg H, Svanvik J, Gisslén M. Sex difference in circulating soluble form of ACE2 protein in moderate and severe COVID-19 and healthy controls. Front Med (Lausanne) 2022; 9:1058120. [PMID: 36569121 PMCID: PMC9773379 DOI: 10.3389/fmed.2022.1058120] [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: 09/30/2022] [Accepted: 11/24/2022] [Indexed: 12/14/2022] Open
Abstract
Introduction Membrane-bound angiotensin-converting enzyme-2 (ACE2) in epithelial cells is the main receptor for SARS-CoV-2. The extracellular portion of ACE2 may be shedded to plasma in which process ADAM17 (a disintegrin and metalloproteinase 17) is important. Results on the relationship between circulating levels of the soluble form of ACE2 (sACE2) and disease severity are inconclusive. This study investigates if sACE2 concentration correlates with COVID-19 severity, and whether this is affected by sex. Materials and methods Soluble form of ACE2 was analyzed in three groups: 104 patients (23 women and 81 men) with severe COVID-19 admitted to an intensive care unit (ICU), patients with moderate COVID-19 who required hospital care (n = 19, 4 women and 15 men), and age and sex matched healthy controls (n = 20, 4 women and 16 men). Blood samples were collected at hospital admission between 18 March 2020, and 3 May 2021, and at follow-up between 27 October 2020, and 19 October 2021. Circulating sACE2 (μg/L) was measured in EDTA plasma with a sensitive enzyme-linked immunosorbent assay. Additionally, CRP, ferritin, and lymphocyte count were analyzed during hospital stay. Results In total, 23 patients (22%) died in the ICU. When comparing healthy controls [mean age 58.1 (SD 11.4) years] and patients with moderate COVID-19 [mean age 61.0 (SD 13.2) years] with patients in the ICU [mean age 63.6 (SD 11.6) years], we found that sACE2 concentration decreased (70% reduction) with disease severity in men (p = 0.002) but increased 3.7-fold with severity in women (p = 0.043), suggesting a sex-related difference in how COVID-19 severity is related to sACE2 concentration. Moreover, we identified a relationship between inflammatory biomarkers and sACE2 concentration during the intensive care treatment, such that higher CRP and higher ferritin concentration correlated with lower sACE2 concentration in men. Conclusion The decrease in sACE2 concentration, selectively in men, in severe COVID-19 is of pathophysiological interest since men are affected more severely by the disease compared to women. Additionally, the inflammatory biomarkers, CRP and ferritin, correlated inversely with sACE2 concentration, suggesting a role in severe disease. Our findings imply that sACE2 is a possible biomarker of disease severity in a sex-specific manner.
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Affiliation(s)
- Josefina Robertson
- Department of Infectious Diseases, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden,*Correspondence: Josefina Robertson,
| | - Bengt Nellgård
- Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden,Department of Anaesthesiology and Intensive care, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Lillemor Mattsson Hultén
- Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden,Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Staffan Nilsson
- Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Keti Dalla
- Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden,Department of Anaesthesiology and Intensive care, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Mats Börjesson
- Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden,Center for Health and Performance, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Gothenburg, Sweden,Department of Neurodegenerative Disease, University College London (UCL) Institute of Neurology, London, United Kingdom,United Kingdom Dementia Research Institute, University College London (UCL), London, United Kingdom,Hong Kong Center for Neurodegenerative Diseases, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Joar Svanvik
- The Transplant Institute, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Magnus Gisslén
- Department of Infectious Diseases, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
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25
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Feng L, Fu S, Zhang P, Zhang Y, Zhao Y, Yao Y, Luo L, Ping P. Potential use of the S-protein-Angiotensin converting enzyme 2 binding pathway in the treatment of coronavirus disease 2019. Front Public Health 2022; 10:1050034. [PMID: 36518573 PMCID: PMC9742547 DOI: 10.3389/fpubh.2022.1050034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 11/15/2022] [Indexed: 11/29/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the pathogen that causes coronavirus disease 2019 (COVID-19), infects humans through a strong interaction between the viral spike protein (S-protein) and angiotensin converting enzyme 2 (ACE2) receptors on the cell surface. The infection of host lung cells by SARS-CoV-2 leads to clinical symptoms in patients. However, ACE2 expression is not restricted to the lungs; altered receptors have been found in the nasal and oral mucosa, vessel, brain, pancreas, gastrointestinal tract, kidney, and heart. The future of COVID-19 is uncertain, however, new viral variants are likely to emerge. The SARS-CoV-2 Omicron variant has a total of 50 gene mutations compared with the original virus; 15 of which occur in the receptor binding domain (RBD). The RBD of the viral S-protein binds to the human ACE2 receptor for viral entry. Mutations of the ACE2-RBD interface enhance tight binding by increasing hydrogen bond interactions and expanding the accessible surface area. Extracorporeal membrane oxygenation, hyperbaric oxygen, and aggressive dialysis for the treatment of COVID-19 have shown various degrees of clinical success. The use of decoy receptors based on the ACE2 receptor as a broadly potent neutralizer of SARS-CoV-2 variants has potential as a therapeutic mechanism. Drugs such as 3E8 could block binding of the S1-subunit to ACE2 and restrict the infection of ACE2-expressing cells by a variety of coronaviruses. Here, we discuss the development of ACE2-targeted strategies for the treatment and prevention of COVID-19.
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Affiliation(s)
- Long Feng
- Department of Anesthesia, Hainan Hospital of Chinese People's Liberation Army General Hospital, Sanya, China
| | - Shihui Fu
- Department of Geriatric Cardiology, Chinese People's Liberation Army General Hospital, Beijing, China
- Department of Cardiology, Hainan Hospital of Chinese People's Liberation Army General Hospital, Sanya, China
| | - Pei Zhang
- School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Yujie Zhang
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Yali Zhao
- Central Laboratory, Hainan Hospital of Chinese People's Liberation Army General Hospital, Sanya, China
| | - Yao Yao
- Center for Healthy Aging and Development Studies, National School of Development, Peking University, Beijing, China
| | - Leiming Luo
- Department of Geriatric Cardiology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Ping Ping
- General Station for Drug and Instrument Supervision and Control, Joint Logistic Support Force of Chinese People's Liberation Army, Beijing, China
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26
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Maranduca MA, Vamesu CG, Tanase DM, Clim A, Drochioi IC, Pinzariu AC, Filip N, Dima N, Tudorancea I, Serban DN, Serban IL. The RAAS Axis and SARS-CoV-2: From Oral to Systemic Manifestations. Medicina (B Aires) 2022; 58:medicina58121717. [PMID: 36556919 PMCID: PMC9784172 DOI: 10.3390/medicina58121717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 11/18/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022] Open
Abstract
One of the essential regulators of arterial blood pressure, the renin-angiotensin-aldosterone system (RAAS) seems to be one of the most complex mechanisms in the human body. Since the discovery of its key components and their actions, new substances and functions are still being unraveled. The main pathway begins with the secretion of renin in the kidney and culminates with the synthesis of angiotensin II (Ang II)-a strong vasoconstrictor-thanks to the angiotensin-converting enzyme (ACE). Research conducted in 2000 identified another enzyme, named ACE2, that converts Ang II into Ang-(1-7), a heptapeptide with opposing effects to those of Ang II: vasodilation and anti-inflammatory properties. This particular enzyme became of paramount importance during the last two decades, as a result of the confrontation of the human race with life-threatening epidemics. Multiple studies have been performed in order to uncover the link between ACE2 and human coronaviruses, the results of which we systemized in order to create an overview of the pathogenic mechanism. Human coronaviruses, such as SARS-CoV and SARS-CoV-2, attach to ACE2 via their spike proteins (S), causing the destruction of the enzyme. Because ACE2 limits the production of Ang II (by converting it into Ang-(1-7)), its destruction leads to a dysregulated inflammatory response. The purpose of this review is to decipher the complex pathophysiological mechanisms underlying the multiorgan complications (oral, cardiac, pulmonary, systemic) that appear as a result of the interaction of the SARS CoV-2 virus with the angiotensin-converting enzyme type 2.
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Affiliation(s)
- Minela Aida Maranduca
- Department of Morpho-Functional Sciences II, Discipline of Physiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
- Internal Medicine Clinic, “St. Spiridon” County Clinical Emergency Hospital, 700115 Iasi, Romania
| | - Calin George Vamesu
- Department of Morpho-Functional Sciences II, Discipline of Physiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Daniela Maria Tanase
- Internal Medicine Clinic, “St. Spiridon” County Clinical Emergency Hospital, 700115 Iasi, Romania
- Department of Internal Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Andreea Clim
- Department of Morpho-Functional Sciences II, Discipline of Physiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Ilie Cristian Drochioi
- Department of Oral and Maxillofacial Surgery and Reconstructive, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700020 Iasi, Romania
- Correspondence: (I.C.D.); (A.C.P.)
| | - Alin Constantin Pinzariu
- Department of Morpho-Functional Sciences II, Discipline of Physiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
- Correspondence: (I.C.D.); (A.C.P.)
| | - Nina Filip
- Department of Morpho-Functional Sciences II, Discipline of Biochemistry, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Nicoleta Dima
- Internal Medicine Clinic, “St. Spiridon” County Clinical Emergency Hospital, 700115 Iasi, Romania
- Department of Internal Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Ionut Tudorancea
- Department of Morpho-Functional Sciences II, Discipline of Physiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
- Cardiology Clinic, “St. Spiridon” County Clinical Emergency Hospital, 700111 Iasi, Romania
| | - Dragomir Nicolae Serban
- Department of Morpho-Functional Sciences II, Discipline of Physiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Ionela Lacramioara Serban
- Department of Morpho-Functional Sciences II, Discipline of Physiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
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27
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Neuro–Immune Interactions in Severe COVID-19 Infection. Pathogens 2022; 11:pathogens11111256. [PMID: 36365007 PMCID: PMC9699641 DOI: 10.3390/pathogens11111256] [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: 09/15/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 12/15/2022] Open
Abstract
SARS-CoV-2 is a new coronavirus that has affected the world since 2019. Interstitial pneumonia is the most common clinical presentation, but additional symptoms have been reported, including neurological manifestations. Severe forms of infection, especially in elderly patients, present as an excessive inflammatory response called “cytokine storm”, which can lead to acute respiratory distress syndrome (ARDS), multiorgan failure and death. Little is known about the relationship between symptoms and clinical outcomes or the characteristics of virus–host interactions. The aim of this narrative review is to highlight possible links between neurological involvement and respiratory damage mediated by pathological inflammatory pathways in SARS-CoV-2 infection. We will focus on neuro–immune interactions and age-related immunity decline and discuss some pathological mechanisms that contribute to negative outcomes in COVID-19 patients. Furthermore, we will describe available therapeutic strategies and their effects on COVID-19 neurological symptoms.
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28
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Pisoschi AM, Iordache F, Stanca L, Gajaila I, Ghimpeteanu OM, Geicu OI, Bilteanu L, Serban AI. Antioxidant, Anti-inflammatory, and Immunomodulatory Roles of Nonvitamin Antioxidants in Anti-SARS-CoV-2 Therapy. J Med Chem 2022; 65:12562-12593. [PMID: 36136726 PMCID: PMC9514372 DOI: 10.1021/acs.jmedchem.2c01134] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Indexed: 11/28/2022]
Abstract
Viral pathologies encompass activation of pro-oxidative pathways and inflammatory burst. Alleviating overproduction of reactive oxygen species and cytokine storm in COVID-19 is essential to counteract the immunogenic damage in endothelium and alveolar membranes. Antioxidants alleviate oxidative stress, cytokine storm, hyperinflammation, and diminish the risk of organ failure. Direct antiviral roles imply: impact on viral spike protein, interference with the ACE2 receptor, inhibition of dipeptidyl peptidase 4, transmembrane protease serine 2 or furin, and impact on of helicase, papain-like protease, 3-chyomotrypsin like protease, and RNA-dependent RNA polymerase. Prooxidative environment favors conformational changes in the receptor binding domain, promoting the affinity of the spike protein for the host receptor. Viral pathologies imply a vicious cycle, oxidative stress promoting inflammatory responses, and vice versa. The same was noticed with respect to the relationship antioxidant impairment-viral replication. Timing, dosage, pro-oxidative activities, mutual influences, and interference with other antioxidants should be carefully regarded. Deficiency is linked to illness severity.
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Affiliation(s)
- Aurelia Magdalena Pisoschi
- Faculty of Veterinary Medicine, Department Preclinical
Sciences, University of Agronomic Sciences and Veterinary Medicine of
Bucharest, 105 Splaiul Independentei, 050097Bucharest,
Romania
| | - Florin Iordache
- Faculty of Veterinary Medicine, Department Preclinical
Sciences, University of Agronomic Sciences and Veterinary Medicine of
Bucharest, 105 Splaiul Independentei, 050097Bucharest,
Romania
| | - Loredana Stanca
- Faculty of Veterinary Medicine, Department Preclinical
Sciences, University of Agronomic Sciences and Veterinary Medicine of
Bucharest, 105 Splaiul Independentei, 050097Bucharest,
Romania
| | - Iuliana Gajaila
- Faculty of Veterinary Medicine, Department Preclinical
Sciences, University of Agronomic Sciences and Veterinary Medicine of
Bucharest, 105 Splaiul Independentei, 050097Bucharest,
Romania
| | - Oana Margarita Ghimpeteanu
- Faculty of Veterinary Medicine, Department Preclinical
Sciences, University of Agronomic Sciences and Veterinary Medicine of
Bucharest, 105 Splaiul Independentei, 050097Bucharest,
Romania
| | - Ovidiu Ionut Geicu
- Faculty of Veterinary Medicine, Department Preclinical
Sciences, University of Agronomic Sciences and Veterinary Medicine of
Bucharest, 105 Splaiul Independentei, 050097Bucharest,
Romania
- Faculty of Biology, Department Biochemistry and
Molecular Biology, University of Bucharest, 91-95 Splaiul
Independentei, 050095Bucharest, Romania
| | - Liviu Bilteanu
- Faculty of Veterinary Medicine, Department Preclinical
Sciences, University of Agronomic Sciences and Veterinary Medicine of
Bucharest, 105 Splaiul Independentei, 050097Bucharest,
Romania
- Molecular Nanotechnology Laboratory,
National Institute for Research and Development in
Microtechnologies, 126A Erou Iancu Nicolae Street, 077190Bucharest,
Romania
| | - Andreea Iren Serban
- Faculty of Veterinary Medicine, Department Preclinical
Sciences, University of Agronomic Sciences and Veterinary Medicine of
Bucharest, 105 Splaiul Independentei, 050097Bucharest,
Romania
- Faculty of Biology, Department Biochemistry and
Molecular Biology, University of Bucharest, 91-95 Splaiul
Independentei, 050095Bucharest, Romania
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29
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Nagatomo I, Nakanishi K, Yamamoto R, Ide S, Ishibashi C, Moriyama T, Yamauchi-Takihara K. Soluble angiotensin-converting enzyme 2 association with lipid metabolism. Front Med (Lausanne) 2022; 9:955928. [PMID: 36035417 PMCID: PMC9399413 DOI: 10.3389/fmed.2022.955928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 07/25/2022] [Indexed: 12/03/2022] Open
Abstract
Increased expression of angiotensin-converting enzyme 2 (ACE2) is one of the likely explanations for disease severity in patients with coronavirus disease 2019 (COVID-19). In this study, we aimed to test whether soluble ACE2 (sACE2) levels are correlated to known risk factors of severe COVID-19 including biochemical parameters, body mass index and smoking habits. We cross-sectionally evaluated serum sACE2 levels in obese or tobacco-smoking populations and compared them to those in non-obese and non-smoking healthy participants. Additionally, fibroblast growth factor-21 (FGF21) was investigated as a candidate regulator of sACE2. A total of 220 male participants aged 30–59 years undergoing an annual health checkup were enrolled in this study: 59 obese, 80 smokers, and 81 healthy. Serum sACE2 levels were significantly higher in obese participants but not in tobacco-smoking participants when compared to healthy participants. sACE2 levels were significantly correlated with total cholesterol and triglycerides but not with body mass index. Furthermore, no regulatory relationship was found between FGF21 and sACE2. Lipid metabolism disorders accompanied by upregulation of serum sACE2 may be underlying mechanisms of COVID-19 aggravation and might be a novel breakthrough treatment target.
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30
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Baindara P, Sarker MB, Earhart AP, Mandal SM, Schrum AG. NOTCH signaling in COVID-19: a central hub controlling genes, proteins, and cells that mediate SARS-CoV-2 entry, the inflammatory response, and lung regeneration. Front Cell Infect Microbiol 2022; 12:928704. [PMID: 35992174 PMCID: PMC9386183 DOI: 10.3389/fcimb.2022.928704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 07/11/2022] [Indexed: 01/19/2023] Open
Abstract
In the lungs of infected individuals, the downstream molecular signaling pathways induced by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) are incompletely understood. Here, we describe and examine predictions of a model in which NOTCH may represent a central signaling axis in lung infection in Coronavirus Disease 2019 (COVID-19). A pathway involving NOTCH signaling, furin, ADAM17, and ACE2 may be capable of increasing SARS-CoV-2 viral entry and infection. NOTCH signaling can also upregulate IL-6 and pro-inflammatory mediators induced to hyperactivation in COVID-19. Furthermore, if NOTCH signaling fails to turn down properly and stays elevated, airway regeneration during lung healing can be inhibited—a process that may be at play in COVID-19. With specific NOTCH inhibitor drugs in development and clinical trials for other diseases being conducted, the roles of NOTCH in all of these processes central to both infection and healing merit contemplation if such drugs might be applied to COVID-19 patients.
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Affiliation(s)
- Piyush Baindara
- Department of Molecular Microbiology & Immunology, School of Medicine, University of Missouri, Columbia, MO, United States
- *Correspondence: Piyush Baindara, ; Santi M. Mandal, ; Adam G. Schrum,
| | - Md Bodruzzaman Sarker
- Department of Molecular Microbiology & Immunology, School of Medicine, University of Missouri, Columbia, MO, United States
- Division of Animal Sciences, College of Agriculture, Food and Natural Resources, University of Missouri, Columbia MO, United States
| | - Alexander P. Earhart
- Department of Molecular Microbiology & Immunology, School of Medicine, University of Missouri, Columbia, MO, United States
| | - Santi M. Mandal
- Central Research Facility, Indian Institute of Technology Kharagpur, Kharagpur, India
- *Correspondence: Piyush Baindara, ; Santi M. Mandal, ; Adam G. Schrum,
| | - Adam G. Schrum
- Department of Molecular Microbiology & Immunology, School of Medicine, University of Missouri, Columbia, MO, United States
- Division of Animal Sciences, College of Agriculture, Food and Natural Resources, University of Missouri, Columbia MO, United States
- Department of Surgery, School of Medicine, University of Missouri, Columbia, MO, United States
- Department of Biomedical, Biological, & Chemical Engineering, College of Engineering, University of Missouri, Columbia, MO, United States
- *Correspondence: Piyush Baindara, ; Santi M. Mandal, ; Adam G. Schrum,
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Richard D, Muthuirulan P, Aguiar J, Doxey AC, Banerjee A, Mossman K, Hirota J, Capellini TD. Intronic regulation of SARS-CoV-2 receptor (ACE2) expression mediated by immune signaling and oxidative stress pathways. iScience 2022; 25:104614. [PMID: 35756893 PMCID: PMC9213013 DOI: 10.1016/j.isci.2022.104614] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 03/19/2022] [Accepted: 06/10/2022] [Indexed: 11/26/2022] Open
Abstract
The angiotensin-converting enzyme 2 (ACE2) protein is a key catalytic regulator of the renin-angiotensin system (RAS), involved in fluid homeostasis and blood pressure modulation. ACE2 also serves as a cell-surface receptor for some coronaviruses such as SARS-CoV and SARS-CoV-2. Improved characterization of ACE2 regulation may help us understand the effects of pre-existing conditions on COVID-19 incidence, as well as pathogenic dysregulation following viral infection. Here, we perform bioinformatic analyses to hypothesize on ACE2 gene regulation in two different physiological contexts, identifying putative regulatory elements of ACE2 expression. We perform functional validation of our computational predictions via targeted CRISPR-Cas9 deletions of these elements in vitro, finding them responsive to immune signaling and oxidative-stress pathways. This contributes to our understanding of ACE2 gene regulation at baseline and immune challenge. Our work supports pursuit of these putative mechanisms in our understanding of infection/disease caused by current, and future, SARS-related viruses such as SARS-CoV-2. Lung expression patterns suggest ACE2 regulation by immune and oxidative signaling CRISPR deletion of intronic regulatory elements (REs) alters ACE2 expression Effects of RE deletion are modified by immune stimulation and oxidative stress Propose two mechanisms for regulating ACE2 at baseline and after immune challenge
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Affiliation(s)
- Daniel Richard
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, 02138 USA
| | | | - Jennifer Aguiar
- Department of Biology, University of Waterloo, Waterloo, ON, N2L3G1 Canada
| | - Andrew C Doxey
- Department of Biology, University of Waterloo, Waterloo, ON, N2L3G1 Canada
| | - Arinjay Banerjee
- Department of Biology, University of Waterloo, Waterloo, ON, N2L3G1 Canada.,Vaccine and Infectious Disease Organization, University of Saskatchewan; Saskatoon, SK, S7N 5E3 Canada.,Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan; Saskatoon, SK, S7N5B4 Canada
| | - Karen Mossman
- Department of Medicine, McMaster University, Hamilton, ON, L8N 3Z5 Canada
| | - Jeremy Hirota
- Department of Biology, University of Waterloo, Waterloo, ON, N2L3G1 Canada.,Department of Medicine, McMaster University, Hamilton, ON, L8N 3Z5 Canada.,Division of Respiratory Medicine, Department of Medicine, University of British Columbia, Vancouver, BC, V5Z 1M9 Canada
| | - Terence D Capellini
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, 02138 USA.,Broad Institute of MIT and Harvard, Cambridge, 02142 MA, USA
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32
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Balasubramanian N, James TD, Pushpavathi SG, Marcinkiewcz CA. Repeated ethanol exposure and withdrawal alters ACE2 expression in discrete brain regions: Implications for SARS-CoV-2 infection. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2022:2022.03.29.486282. [PMID: 35378747 PMCID: PMC8978936 DOI: 10.1101/2022.03.29.486282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Emerging evidence suggests that people with alcohol use disorders are at higher risk for SARS-CoV-2. SARS-CoV-2 engages angiotensin-converting enzyme 2 (ACE2) and transmembrane serine protease 2 (TMPRSS2) receptors for cellular entry. While ACE2 and TMPRSS2 genes are upregulated in the cortex of alcohol-dependent individuals, information on expression in specific brain regions and neural populations implicated in SARS-CoV-2 neuroinvasion, particularly monoaminergic neurons, is limited. We sought to clarify how chronic alcohol exposure affects ACE2 and TMPRSS2 expression in monoaminergic brainstem circuits and other putative SARS-CoV-2 entry points. C57BL/6J mice were exposed to chronic intermittent ethanol (CIE) vapor for 4 weeks and brains were examined using immunofluorescence. We observed increased ACE2 levels in the olfactory bulb and hypothalamus following CIE, which are known to mediate SARS-CoV-2 neuroinvasion. Total ACE2 immunoreactivity was also elevated in the raphe magnus (RMG), raphe obscurus (ROB), and locus coeruleus (LC), while in the dorsal raphe nucleus (DRN), ROB, and LC we observed increased colocalization of ACE2 with monoaminergic neurons. ACE2 also increased in the periaqueductal gray (PAG) and decreased in the amygdala. Whereas ACE2 was detected in most brain regions, TMPRSS2 was only detected in the olfactory bulb and DRN but was not significantly altered after CIE. Our results suggest that previous alcohol exposure may increase the risk of SARS-CoV-2 neuroinvasion and render brain circuits involved in cardiovascular and respiratory function as well as emotional processing more vulnerable to infection, making adverse outcomes more likely. Additional studies are needed to define a direct link between alcohol use and COVID-19 infection.
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Myroshnychenko MS, Torianyk II, Arseniev OV, Franchuk VV, Zaytseva OV, Moiseienko TM, Bondarenko MA, Popova NG, Melnyk AL, Mozhaiev IV, Osolodchenko TP, Molodan DV. MORPHOLOGICAL AND FUNCTIONAL FEATURES OF THE MUCOUS MEMBRANE OF SMALL AND LARGE INTESTINE IN PATIENTS WITH COVID-19 AND IN POST-COVID-19 PERIOD. WIADOMOSCI LEKARSKIE (WARSAW, POLAND : 1960) 2022; 75:2198-2203. [PMID: 36378694 DOI: 10.36740/wlek202209203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
OBJECTIVE The aim: To reveal the morphological and functional features of the mucous membrane of small and large intestine in patients with COVID-19 and in post-COVID-19 period. PATIENTS AND METHODS Materials and methods: In the present study, the authors used biopsy and autopsy material represented by the fragments of the mucous membrane of small and large intestine. All studied material was divided into 10 groups. Group 1 (comparison group) included autopsy material from the deceased who did not have COVID-19 during their lifetime. Groups 2-4 included autopsy material from the deceased who had COVID-19 of varying severity during their lifetime. Groups 5-7 included biopsy material from patients who had recovered from COVID-19 of varying severity, while the duration of the post-COVID period ranged from 1 to 50 days. Groups 8-10 included biopsy material from patients who had in anamnesis COVID-19 of varying severity (the duration of the post-COVID period lasted from 51 to 100 days). Histological, immunohistochemical, morphometric and statistical research methods were used. RESULTS Results: The comparative analysis showed a more expressed deficiency of ACE2 in the mucous membrane of small and large intestine in patients with moderate and severe COVID-19 compared with patients in post-COVID-19 period of different duration. In patients who had moderate and severe COVID-19 in anamnesis, ACE2 deficiency decreases with increasing duration of post-COVID-19 period. In patients recovered from mild COVID-19, the ACE2 content increases with the duration of post-COVID-19 period from 1 to 50 days and corresponds to the norm with the duration of this period from 51 to 100 days. CONCLUSION Conclusions: The comprehensive morphological study conducted by the authors made it possible, firstly, to clarify the morphological and functional features of the mucous membrane of small and large intestine in patients with COVID-19 of various degrees of severity; secondly, to obtain new data about the morpho-functional state of the mucous membrane of small and large intestine in patients, taking into account different duration of the post-COVID-19 period and the severity of the infection.
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Affiliation(s)
| | - Inna I Torianyk
- STATE INSTITUTION «INSTITUTE OF MICROBIOLOGY AND IMMUNOLOGY NAMED BY I.I. МЕCHNIKOV NATIONAL ACADEMY OF MEDICAL SCIENCES OF UKRAINE», KHARKIV, UKRAINE
| | | | | | | | - Tetiana M Moiseienko
- STATE INSTITUTION «INSTITUTE OF MICROBIOLOGY AND IMMUNOLOGY NAMED BY I.I. МЕCHNIKOV NATIONAL ACADEMY OF MEDICAL SCIENCES OF UKRAINE», KHARKIV, UKRAINE
| | | | | | | | - Ivan V Mozhaiev
- STATE INSTITUTION «INSTITUTE OF MICROBIOLOGY AND IMMUNOLOGY NAMED BY I.I. МЕCHNIKOV NATIONAL ACADEMY OF MEDICAL SCIENCES OF UKRAINE», KHARKIV, UKRAINE
| | - Tetiana P Osolodchenko
- STATE INSTITUTION «INSTITUTE OF MICROBIOLOGY AND IMMUNOLOGY NAMED BY I.I. МЕCHNIKOV NATIONAL ACADEMY OF MEDICAL SCIENCES OF UKRAINE», KHARKIV, UKRAINE
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