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LTB4-DRIVEN INFLAMMATION AND INCREASED EXPRESSION OF ALOX5/ACE2 DURING SEVERE COVID-19 IN INDIVIDUALS WITH DIABETES
Síndrome Respiratória Aguda Grave
Coronavirus
Diabetes
Inflamação
Severe Acute Respiratory Syndrome
Coronavirus
Diabetes
Inflammation
Autor
Bonyek-Silva, Icaro
Machado, Antônio Fernando Araujo
Silva, Thiago Cerqueira
Nunes, Sara
Cruz, Marcio Rivison Silva
Silva, Jessica
Santos, Reinan Lima
Barral, Aldina Maria do Prado
Oliveira, Pablo Rafael Silveira
Khouri, Antonio Ricardo
Serezani, C. Henrique
Brodskyn, Claudia Ida
Caldas, Juliana Ribeiro
Barral Netto, Manoel
Boaventura, Viviane
Tavares, Natalia Machado
Machado, Antônio Fernando Araujo
Silva, Thiago Cerqueira
Nunes, Sara
Cruz, Marcio Rivison Silva
Silva, Jessica
Santos, Reinan Lima
Barral, Aldina Maria do Prado
Oliveira, Pablo Rafael Silveira
Khouri, Antonio Ricardo
Serezani, C. Henrique
Brodskyn, Claudia Ida
Caldas, Juliana Ribeiro
Barral Netto, Manoel
Boaventura, Viviane
Tavares, Natalia Machado
Afiliación
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil.
Salvador University. Salvador, BA, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil.
Salvador University. Salvador, BA, Brazil / Ernesto Simões Filho Hospital. Critical Care Unit. Salvador, BA, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Pharmacy School. Salvador, BA, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil / National Institute of Science and Technology. Institute of Investigation in Immunology. São Paulo, SP, Brazil.
Federal University of Bahia. Institute of Biological Sciences. Salvador, BA, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil.
Vanderbilt University. Department of Medicine. Division of Infectious Diseases. Medical Center. Nashville, TN, USA.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil / National Institute of Science and Technology. Institute of Investigation in Immunology. São Paulo, SP, Brazil.
Salvador University. Salvador, BA, Brazil / Ernesto Simões Filho Hospital. Critical Care Unit. Salvador, BA, Brazil / São Rafael Hospital–Rede d’Or. Critical Care Unit. Salvador, BA, Brazil / Bahiana School of Medicine and Public Health. Salvador, BA, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil / National Institute of Science and Technology. Institute of Investigation in Immunology. São Paulo, SP, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil / National Institute of Science and Technology. Institute of Investigation in Immunology. São Paulo, SP, Brazil.
Salvador University. Salvador, BA, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil.
Salvador University. Salvador, BA, Brazil / Ernesto Simões Filho Hospital. Critical Care Unit. Salvador, BA, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Pharmacy School. Salvador, BA, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil / National Institute of Science and Technology. Institute of Investigation in Immunology. São Paulo, SP, Brazil.
Federal University of Bahia. Institute of Biological Sciences. Salvador, BA, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil.
Vanderbilt University. Department of Medicine. Division of Infectious Diseases. Medical Center. Nashville, TN, USA.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil / National Institute of Science and Technology. Institute of Investigation in Immunology. São Paulo, SP, Brazil.
Salvador University. Salvador, BA, Brazil / Ernesto Simões Filho Hospital. Critical Care Unit. Salvador, BA, Brazil / São Rafael Hospital–Rede d’Or. Critical Care Unit. Salvador, BA, Brazil / Bahiana School of Medicine and Public Health. Salvador, BA, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil / National Institute of Science and Technology. Institute of Investigation in Immunology. São Paulo, SP, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil.
Oswaldo Cruz Foundation. Gonçalo Moniz Institute. Salvador, BA, Brazil / Federal University of Bahia. Medical School. Salvador, BA, Brazil / National Institute of Science and Technology. Institute of Investigation in Immunology. São Paulo, SP, Brazil.
Resumen en ingles
Diabetes is a known risk factor for severe coronavirus disease 2019 (COVID-19), the disease caused by the new coronavirus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, there is a lack of knowledge about the mechanisms involved in the evolution of COVID-19 in individuals with diabetes. We aimed to evaluate whether the chronic low-grade inflammation of diabetes could play a role in the development of severe COVID-19. We collected clinical data and blood samples of patients with and without diabetes hospitalized for COVID-19. Plasma samples were used to measure inflammatory mediators and peripheral blood mononuclear cells, for gene expression analysis of the SARS-CoV-2 main receptor system (ACE2/TMPRSS2), and for the main molecule of the leukotriene B4 (LTB4) pathway (ALOX5). We found that diabetes activates the LTB4 pathway and that during COVID-19 it increases ACE2/TMPRSS2 as well as ALOX5 expression. Diabetes was also associated with COVID-19–related disorders, such as reduced oxygen saturation as measured by pulse oximetry/fraction of inspired oxygen (FiO2) and arterial partial pressure of oxygen/FiO2 levels, and increased disease duration. In addition, the expressions of ACE2 and ALOX5 are positively correlated, with increased expression in patients with diabetes and COVID-19 requiring intensive care assistance. We confirmed these molecular results at the protein level, where plasma LTB4 is significantly increased in individuals with diabetes. In addition, IL-6 serum levels are increased only in individuals with diabetes requiring intensive care assistance. Together, these results indicate that LTB4 and IL-6 systemic levels, as well as ACE2/ALOX5 blood expression, could be early markers of severe COVID-19 in individuals with diabetes.
Palabras clave en portugues
SARS-CoV-2Síndrome Respiratória Aguda Grave
Coronavirus
Diabetes
Inflamação
Palabras clave en ingles
SARS-CoV-2Severe Acute Respiratory Syndrome
Coronavirus
Diabetes
Inflammation
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