Article
Medicine, Research & Experimental
Andrea Estefania Portales, Emilio Roman Mustafa, Clara Ines McCarthy, Maria Paula Cornejo, Paula Monserrat Couto, Mariela Mercedes Gironacci, Julio Javier Caramelo, Mario Perello, Jesica Raingo
Summary: This study aimed to investigate the impact of RAS modulators on the susceptibility to SARS-CoV-2 infection and severity of COVID-19. The results showed that the AT1R and B2R receptors modulated the internalization of SARS-CoV-2, and the coexpression of ACE2 affected the inhibitory action of these receptors on calcium channels.
Review
Pharmacology & Pharmacy
Gabor Kriszta, Zsofia Kriszta, Szilard Vancsa, Peter Jeno Hegyi, Levente Frim, Balint Eross, Peter Hegyi, Gabor Petho, Erika Pinter
Summary: This study systematically reviewed the relationship between ACEI/ARB administration and ACE2 expression in experimental models, with the majority of studies reporting an increase in ACE2 levels in response to these treatments.
FRONTIERS IN PHARMACOLOGY
(2021)
Article
Pharmacology & Pharmacy
Khushwant S. Bhullar, Steven J. Drews, Jianping Wu
Summary: COVID-19, caused by SARS-CoV-2, is a global pandemic threatening health, social stability, and the economy. This article discusses the potential of bioactive peptides in mitigating SARS-CoV-2 infection through inhibiting specific targets like TMPRSS2 and furin cleavage.
EUROPEAN JOURNAL OF PHARMACOLOGY
(2021)
Article
Cell Biology
Thankamani Karthika, Jeswin Joseph, V. R. Akshay Das, Niranjana Nair, Packirisamy Charulekha, Melvin Daniel Roji, V. Stalin Raj
Summary: The cytoplasmic tail of ACE2 is not essential for the entry of SARS-CoV-1 and -2, suggesting that their entry may be mediated via known or unknown host factors. Inhibition of pseudotyped SARS-CoVs entry into cells was observed when treated with a dynamin inhibitor and an endosomal acidification inhibitor. Antibodies against SARS-CoV and soluble ACE2 were unable to enter cells expressing wtACE2 and increment cytACE2.
Article
Biology
Tuemay Capraz, Nikolaus F. Kienzl, Elisabeth Laurent, Jan W. Perthold, Esther Foederl-Hoebenreich, Clemens Gruenwald-Gruber, Daniel Maresch, Vanessa Monteil, Janine Niederhofer, Gerald Wirnsberger, Ali Mirazimi, Kurt Zatloukal, Lukas Mach, Josef M. Penninger, Chris Oostenbrink, Johannes Stadlmann
Summary: The interaction between the Spike protein of SARS-CoV-2 and ACE2 on host cells is crucial for viral entry, with glycosylation playing a critical role. Engineering ACE2 glycosylation can enhance virus neutralization without affecting protein stability or activity. Removing all N-glycans from recombinant soluble human ACE2 can create a superior decoy receptor for effective COVID-19 treatment.
Article
Cell Biology
Rocio Diaz Escarcega, Pedram Honarpisheh, Gabriela Delevati Colpo, Hilda W. Ahnstedt, Lucy Couture, Shivanki Juneja, Glenda Torres, Guadalupe J. Ortiz, James Sollome, Natalie Tabor, Bhanu P. Ganesh, H. Alex Choi, Fudong Liu, Louise D. McCullough, Andrey S. Tsvetkov
Summary: The study finds sex differences in metabolism and sexual dimorphism in the correlations between clinical parameters and metabolic profiles in severe COVID-19 patients, providing important knowledge for the development of sex-associated biomarkers and druggable targets for COVID-19 patients.
CELL DEATH & DISEASE
(2022)
Article
Biochemistry & Molecular Biology
Shaomin Yan, Guang Wu
Summary: This study found that lymphopenia is prior to apoptosis in SARS patients, while apoptosis is prior to lymphopenia in COVID-19 patients. The research suggests that the dosage of glucocorticoids may determine this sequencing. More questions need to be answered to fully understand the entire course of COVID-19.
Review
Pharmacology & Pharmacy
Murtala Bello Abubakar, Dawoud Usman, Gaber El-Saber Batiha, Natalia Cruz-Martins, Ibrahim Malami, Kasimu Ghandi Ibrahim, Bilyaminu Abubakar, Muhammad Bashir Bello, Aliyu Muhammad, Siew Hua Gan, Aliyu Ibrahim Dabai, M. Alblihed, Arabinda Ghosh, Reem H. Badr, Devarajan Thangadurai, Mustapha Umar Imam
Summary: COVID-19 is a potentially fatal multisystemic infection caused by SARS-CoV-2, with a lack of cost-effective, safe, and readily available therapeutic options. Traditional herbs used in African and Asian regions may contribute to a lesser burden of the pandemic. Ethnomedicinal plants containing bioactive compounds could potentially mitigate COVID-19 by modulating ACE2 activity.
FRONTIERS IN PHARMACOLOGY
(2021)
Review
Immunology
Keiji Kuba, Tomokazu Yamaguchi, Josef M. Penninger
Summary: Seventeen years after the SARS epidemic, the emergence of the novel coronavirus SARS-CoV-2 has led to an unprecedented pandemic. ACE2 plays a crucial role in cell entry of SARS-CoV-2 and its high affinity to ACE2 results in increased infectivity and transmissibility. In addition to serving as the receptor for SARS-CoV-2, ACE2 also plays an important role in various aspects of COVID-19 pathogenesis and potential post-COVID-19 syndromes.
FRONTIERS IN IMMUNOLOGY
(2021)
Article
Critical Care Medicine
Lingbing Zhang, Yandan Zhang, Xia Qin, Xuejun Jiang, Jun Zhang, Lejiao Mao, Ziqi Jiang, Yu Jiang, Gang Liu, Jingfu Qiu, Chengzhi Chen, Feng Qiu, Zhen Zou
Summary: This study demonstrates that rACE2 plays a protective role against SARS-CoV-2 spike RBD protein-aggravated LPS-induced ALI in an animal model and illustrates the potential mechanism involving the ACE2-AngII-AT(1)R-NOX1/2 axis in SARS-CoV-2-induced ALI.
Article
Multidisciplinary Sciences
Atish Gheware, Animesh Ray, Deeksha Rana, Prashant Bajpai, Aruna Nambirajan, S. Arulselvi, Purva Mathur, Anjan Trikha, Sudheer Arava, Prasenjit Das, Asit Ranjan Mridha, Geetika Singh, Manish Soneja, Neeraj Nischal, Sanjeev Lalwani, Naveet Wig, Chitra Sarkar, Deepali Jain
Summary: This study found significantly higher ACE2 protein expression in the lung tissues of deceased COVID-19 patients, which correlated with pathological changes and disease severity.
SCIENTIFIC REPORTS
(2022)
Article
Agriculture, Multidisciplinary
Yuanhang Yao, Monica Whent, Yanfang Li, Zhihao Liu, Pamela Pehrsson, Jianghao Sun, Pei Chen, Dejian Huang, Thomas T. Y. Wang, Xianli Wu, Liangli Yu
Summary: In this study, water and ethanol extracts of dried thyme were analyzed for their chemical composition and their effects on the SARS-CoV-2 spike protein-ACE2 interaction, ACE2 activity, and free radical scavenging capacity. The results showed that thyme extracts inhibited the spike protein-ACE2 interaction, inhibited ACE2 activity, and exhibited free radical scavenging capacity. The findings suggest that thyme extract could potentially be used to prevent SARS-CoV-2 infection and mitigate the complications from the infection.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Immunology
Ikram Omar Osman, Clea Melenotte, Philippe Brouqui, Matthieu Million, Jean-Christophe Lagier, Philippe Parola, Andreas Stein, Bernard La Scola, Line Meddeb, Jean-Louis Mege, Didier Raoult, Christian A. Devaux
Summary: SARS-CoV-2 infection can lead to variations in ACE2 expression and Ang II plasma concentration, potentially affecting blood pressure regulation and COVID-19 outcomes.
FRONTIERS IN IMMUNOLOGY
(2021)
Article
Microbiology
Christopher J. Day, Benjamin Bailly, Patrice Guillon, Larissa Dirr, Freda E. -C. Jen, Belinda L. Spillings, Johnson Mak, Mark von Itzstein, Thomas Haselhorst, Michael P. Jennings
Summary: This study identified compounds that bind to human ACE2 or the SARS-CoV-2 spike protein receptor binding domain through molecular docking and SPR screening, with three compounds demonstrating dose-dependent antiviral potency in vitro.
Article
Biology
Samy Gauthier, Alexy Tran-Dinh, Ian Morilla
Summary: Efforts to understand COVID-19's molecular mechanisms have identified ACE2 as the main receptor for SARS-CoV-2 spike protein. However, the role of other proteins remains unclear. To address this, we modeled the plasma proteome of 384 COVID-19 patients, accurately assessing illness severity and constructing a dynamic model to learn molecular interactions and identify potential treatments.
LIFE SCIENCE ALLIANCE
(2023)
Letter
Infectious Diseases
Romaric Larcher, Paul Laffont-Lozes, Paul Loubet, Didier Laureillard, Tayma Naciri, Albert Sotto
CLINICAL MICROBIOLOGY AND INFECTION
(2023)
Review
Biochemistry & Molecular Biology
Alexis Yero, Ralph-Sydney Mboumba Bouassa, Petronela Ancuta, Jerome Estaquier, Mohammad-Ali Jenabian
Summary: Th17-polarized CD4+ effector T-cells and their immunosuppressive regulatory T-cell (Treg) counterparts play important roles at mucosal interfaces. Alterations in the Th17/Treg ratios contribute to disease progression in HIV and SIV infections. The dysregulation of metabolic pathways during HIV-1 infection affects the Th17/Treg balance.
CYTOKINE & GROWTH FACTOR REVIEWS
(2023)
Article
Infectious Diseases
Cassandra Pouget, Alix Pantel, Catherine Dunyach-Remy, Chloe Magnan, Albert Sotto, Jean-Philippe Lavigne
Summary: Diabetic foot infections are a major public health problem. This study evaluated the in vitro activity of antibiotics against bacteria isolated from diabetic foot infections using a dynamic system. The combination of CWM and the BioFlux(TM) microfluidic system could help clinicians in managing chronic wounds.
JOURNAL OF ANTIMICROBIAL CHEMOTHERAPY
(2023)
Article
Hematology
Jean-Christophe Gris, Florence Guillotin, Taissa Pereira dos Santos, Mathias Chea, Paul Loubet, Didier Laureillard, Albert Sotto, Laurent Muller, Saber Davide Barbar, Claire Roger, Jean-Yves Lefrant, Boris Jung, Kada Klouche, Thibault Mura, Isabelle Quere, Antonia Perez-Martin
Summary: In this study, thrombin generation assays were performed on severe COVID-19 patients, and it was found that these assays could not predict the early or late survival rates of the patients, nor were they associated with thrombotic events. However, by detecting the changes in endogenous thrombin potential (ETP), it was possible to predict whether patients would need to be transferred to an intensive care unit in the future.
THROMBOSIS RESEARCH
(2023)
Article
Virology
Nazanin Mohammadzadeh, Na Zhang, William G. Branton, Ouafa Zghidi-Abouzid, Eric A. Cohen, Benjamin B. Gelman, Jerome Estaquier, Linglong Kong, Christopher Power
Summary: Despite effective antiretroviral therapy (ART), HIV-encoded DNA, RNA, and proteins can still be found in the brain, leading to neurocognitive impairments. The expression and regulation of antiretroviral host restriction factors (RFs) in the brain for HIV and SIV remain unknown. This study examined the transcriptomic profile of RF genes and found significant increases in RF expression in the brains of HIV-infected individuals with encephalitis. ART interruption resulted in induced expression of RF genes, suggesting the brain's RF profile can be influenced by ART.
Article
Public, Environmental & Occupational Health
Koko Barrigah-Benissan, Jerome Ory, Claire Simon, Paul Loubet, Aurelie Martin, Jean-Paul Beregi, Jean-Philippe Lavigne, Albert Sotto, Romaric Larcher
Summary: This study aimed to assess the clinical factors associated with peripherally inserted central catheter (PICC)-related bloodstream infections (PR-BSI), with a focus on clinical symptoms. The results showed that fever and chills were factors associated with the occurrence of PR-BSI.
ANTIMICROBIAL RESISTANCE AND INFECTION CONTROL
(2023)
Article
Infectious Diseases
Paul Laffont-Lozes, Didier Laureillard, Paul Loubet, Robin Stephan, Myriam Chiaruzzi, Edouard Clemmer, Aurelie Martin, Claire Roger, Laurent Muller, Pierre-Geraud Claret, Radjiv Goulabchand, Clarisse Roux, Jean-Philippe Lavigne, Albert Sotto, Romaric Larcher
Summary: We conducted a prospective cohort study to assess the factors associated with mortality in patients with SARS-CoV-2 pneumonia treated with tocilizumab. Our results showed that age, Charlson index, WHO-CPS, and early administration of tocilizumab were independently associated with mortality. There was no significant difference in mortality between patients treated with tocilizumab and standard of care alone, but better survival was observed in patients who received tocilizumab within 48 hours of hospital admission.
Article
Infectious Diseases
Jerome Ory, Quang Le Minh, Hung Phan Tien, Vinh Vu Hai, Elodie Careno, Tatiana Price, Alexandre Andrieux, Julien Crouzet, Catherine Dunyach-Remy, Didier Laureillard, Jean-Philippe Lavigne, Albert Sotto
Summary: This study examined the changes in surgical site infection rates before and after the implementation of antibiotic stewardship programs and infection control measures in a Vietnamese tertiary care hospital. The results showed a decrease in surgical site infection rates after the implementation of these programs, although the difference was not statistically significant. Comprehensive infection control education and policies are needed in Vietnamese hospitals to prevent surgical site infections.
Article
Multidisciplinary Sciences
Andre Santa Cruz, Ana Mendes-Frias, Marne Azarias-da-Silva, Sonia Andre, Ana Isabel Oliveira, Olga Pires, Marta Mendes, Barbara Oliveira, Marta Braga, Joana Rita Lopes, Rui Domingues, Ricardo Costa, Luis Neves Silva, Ana Rita Matos, Cristina Angela, Patricio Costa, Alexandre Carvalho, Carlos Capela, Jorge Pedrosa, Antonio Gil Castro, Jerome Estaquier, Ricardo Silvestre
Summary: Based on our study, individuals with post-acute sequelae SARS-CoV-2 (PASC) exhibit persisting immunological dysfunction, including changes in mucosal immune parameters, redistribution of mucosal CD8(+)beta 7Integrin(+) T cells, and IgA, indicating potential viral persistence and mucosal involvement in the etiopathology of PASC at six months following infection.
NATURE COMMUNICATIONS
(2023)
Article
Microbiology
Aurelie Martin, Paul Loubet, Florian Salipante, Paul Laffont-Lozes, Julien Mazet, Jean-Philippe Lavigne, Nicolas Cellier, Albert Sotto, Romaric Larcher
Summary: This study describes the clinical characteristics and treatment outcomes of patients with enterococcal bone and joint infections and identifies factors associated with treatment failure. The study found that enterococcal BJIs have poor prognosis, with a treatment failure rate of 39%. Coinfection with Staphylococcus epidermidis and the presence of local signs of inflammation at the time of diagnosis were identified as risk factors for treatment failure.
Article
Multidisciplinary Sciences
Marne Azarias Da Silva, Pierre Nioche, Calaiselvy Soudaramourty, Anne Bull-Maurer, Mounira Tiouajni, Dechuan Kong, Ouafa Zghidi-Abouzid, Morgane Picard, Ana Mendes-Frias, Andre Santa-Cruz, Alexandre Carvalho, Carlos Capela, Jorge Pedrosa, Antonio Gil Castro, Paul Loubet, Albert Sotto, Laurent Muller, Jean-Yves Lefrant, Claire Roger, Pierre-Geraud Claret, Sandra Duvnjak, Tu-Anh Tran, Kenzo Tokunaga, Ricardo Silvestre, Pierre Corbeau, Fabrizio Mammano, Jerome Estaquier
Summary: This study evaluated the quantity, quality, and persistence of antibodies in individuals who received mRNA vaccines and compared them with previously infected individuals who were also vaccinated. The findings showed that three doses of mRNA vaccine were needed to match the immune responses of preinfected individuals. Additionally, repeated vaccination significantly improved the cross-reactivity of antibodies against spike variants. The study also reported lower levels of germinal center activation and formation in vaccinated individuals, potentially explaining the shorter duration and lower quality of induced antibodies.