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Dendritic cell deficiencies persist seven months after SARS-CoV-2 infection

Cellular & Molecular Immunology 2021年第9期18卷 2128-2139页

作者： Alberto Pérez-Gómez Joana Vitallé Carmen Gasca-Capote Alicia Gutierrez-Valencia María Trujillo-Rodriguez Ana Serna-Gallego Esperanza Muñoz-Muela María de los Reyes Jiménez-Leon Mohamed Rafii-El-Idrissi Benhnia Inmaculada Rivas-Jeremias Cesar Sotomayor Cristina Roca-Oporto nuria Espinosa Carmen Infante-Domínguez Juan Carlos Crespo-Rivas Alberto Fernández-Villar Alexandre Pérez-González Luis Fernando López-Cortés Eva Poveda Ezequiel Ruiz-Mateos JoséMiguel Cisneros Sonsoles Salto-Alejandre Judith Berastegui-Cabrera Pedro Camacho-Martínez Carmen Infante-Domínguez Marta Carretero-Ledesma Juan Carlos Crespo-Rivas Eduardo Márquez JoséManuel Lomas Claudio Bueno Rosario Amaya JoséAntonio Lepe Jerónimo Pachón Elisa Cordero Javier Sánchez-Céspedes Manuela Aguilar-Guisado Almudena Aguilera Clara Aguilera Teresa Aldabo-Pallas Verónica Alfaro-Lara Cristina Amodeo Javier Ampuero María Dolores Avilés Maribel Asensio Bosco Barón-Franco Lydia Barrera-Pulido Rafael Bellido-Alba Máximo Bernabeu-Wittel Candela Caballero-Eraso Macarena Cabrera enrique calderón Jesús Carbajal-Guerrero Manuela Cid-Cumplido Yael Corcia-Palomo Juan Delgado Antonio Domínguez-Petit Alejandro Deniz Reginal Dusseck-Brutus Ana Escoresca-Ortega Fátima Espinosa nuria Espinosa Michelle Espinoza Carmen Ferrándiz-Millón Marta Ferrer Teresa Ferrer Ignacio Gallego-Texeira Rosa Gámez-Mancera Emilio García Horacio García-Delgado Manuel García-Gutiérrez María Luisa Gascón-Castillo Aurora González-Estrada Demetrio González Carmen Gómez-González Rocío González-León Carmen Grande-Cabrerizo Sonia Gutiérrez Carlos Hernández-Quiles Inmaculada Concepción Herrera-Melero Marta Herrero-Romero Luis Jara Carlos Jiménez-Juan Silvia Jiménez-Jorge Mercedes Jiménez-Sánchez Julia Lanseros-Tenllado Carmina López Isabel López Álvaro López-Barrios Luis F.López-Cortés Rafael Luque-Márquez Daniel Macías-García Guillermo Martín-Gutiérrez Luis Martín-Villén JoséMolina Aurora Morillo María Dolores navarro-Amuedo Dolores nieto-Martín Francisco Ortega María Paniagua-García Amelia Peña-Rodríguez E Clinical Unit of Infectious Diseases Microbiology and Preventive MedicineInstitute of Biomedicine of Seville(IBiS)Virgen del Rocío University HospitalCSICUniversity of SevilleSevilleSpain Department of Medical Biochemistry Molecular Biologyand ImmunologySchool of MedicineUniversity of SevilleSevilleSpain Pneumology Service Galicia Sur Health Research Instituto(IIS Galicia Sur)SERGAS-UVigoVigoSpain Infectious Diseases Unit Department of Internal MedicineComplexo HospitalarioUniversitario de VigoIIS Galicia SurSERGAS-UVigoVigoSpain Group of Virology and Pathogenesis Galicia Sur Health Research Institute(IIS Galicia Sur)-Complexo Hospitalario Universitario de VigoSERGAS-UVigoVigoSpain Unit of Infectious Diseases Microbiologyand Preventive MedicineVirgen del Rocío University HospitalSevilleSpain Institute of Biomedicine of Seville(IBiS) Virgen del Rocío University Hospital/CSIC/University of SevilleSevilleSpain Medico-Surgical Unit of Respiratory Diseases Virgen del Rocío University HospitalSevilleSpain Unit of Emergencies Virgen del Rocío University HospitalSevilleSpain Intensive Care Unit Virgen del Rocío University HospitalSevilleSpain Department of Medicine University of SevilleSevilleSpain Cardiology and Cardiovascular Surgery Unit Virgen del Rocío University HospitalSevilleSpain Rheumatology Unit Virgen del Rocío University HospitalSevilleSpain Internal Medicine Unit Virgen del Rocío University HospitalSevilleSpain Digestive and Hepatobiliary Unit Virgen del Rocío University HospitalSevilleSpain neurology and Clinical neurophysiology Unit Virgen del Rocío University HospitalSevilleSpain Endocrinology and nutrition Unit Virgen del Rocío University HospitalSevilleSpain Urology and nephrology Unit Virgen del Rocío University HospitalSevilleSpain Unit of Clinical Investigation and Clinical Trials Virgen del Rocío University HospitalSevilleSpain

Severe Acute Respiratory Syndrome Coronavirus(SARS-CoV)-2 infection induces an exacerbated inflammation driven by innate immunity components.Dendritic cells(DCs)play a key role in the defense against viral infections,for instance plasmacytoid DCs(pDCs),have the capacity to produce vast amounts of interferon-alpha(IFn-α).In COVID-19 there is a deficit in DC numbers and IFn-αproduction,which has been associated with disease severity.In this work,we described that in addition to the DC deficiency,several DC activation and homing markers were altered in acute COVID-19 patients,which were associated with multiple inflammatory markers.Remarkably,previously hospitalized and nonhospitalized patients remained with decreased numbers of CD1c+myeloid DCs and pDCs seven months after SARS-CoV-2 infection.Moreover,the expression of DC markers such as CD86 and CD4 were only restored in previously nonhospitalized patients,while no restoration of integrinβ7 and indoleamine 2,3-dyoxigenase(IDO)levels were observed.These findings contribute to a better understanding of the immunological sequelae of COVID-19.

关键词： SARS-CoV-2 COVID-19 Dendritic cell Long-COVID

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PCR-RFLP Methodology to Identify <i>nocardia</i>Isolates in Cuba

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Advances in Microbiology 2015年第10期5卷 724-729页

作者： Yaxsier de Armas Carlos Manuel Fernández Raúl Díaz nicolas Bioni Stefano Gustavo Wissmann enrique José calderón Institute of Tropical Medicine Pedro Kour Havana Cuba Hospital de Clínicas de Porto Alegre Federal University of Rio Grande do Sul Porto Alegre Brazil Department of Internal Medicine Center of Biomedical Research Network in Epidemiology and Public Health Virgen del Rocío University Hospital Seville Spain

nocardiosis diagnosis is a major challenge. The clinical features and radiological findings are nonspecific. Traditionally, nocardia identification is based on colonial and microscopical morphology and biochemical tests. However, molecular biology techniques allow a better characterization of species and biotypes. PCR-RFLP of the 65-kDa heat shock protein (HSP) gene provides a rapid, sensitive, and time and labor-efficient method for this proposal. Using this technique, six of eight isolates tested were identified as nocardia asteroides type VI. PCR-RFLP of the 65-kDa HSP gene could be very useful for determining the incidence of this pathogen in different population groups and its association with susceptibility/resistance profiles to the drugs of choice for treatment. This work is the first molecular detection of nocardia species in Cuba.

关键词： nocardia PCR-RFLP Cuba Molecular Identification 65-kDa HSP Gene

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Synthesis and Characterization of Organic Bio-Absorbents Coming from Sugarcane Bagasse

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Journal of Surface Engineered Materials and Advanced Technology 2016年第3期6卷 125-133页

作者： Israel Hernández Romero Juan Rodrigo Laguna Camacho Raúl enrique Contreras Bermúdez Francisca Sandoval Reyes Erika Gaona Santiago Celia Marí a calderón Ramón Lizeth Rí os Velasco Jesús enrique Escalante Martí nez Facultad de Ciencias Quí micas de la Universidad Veracruzana Tuxpan M&eacute xico Facultad de Ingenierí a Mecánica de la Universidad Veracruzana Tuxpan M&eacute xico

In this work, a modification of the sugarcane bagasse is performed, in order to obtain organic catalysts. The bagasse analysis is performed using X-ray diffraction (XRD) and Fourier Transformer Infrared Spectroscopy (FTIR), which indicated that characteristic peaks determined its chemical compounds. In addition, Scanning Electron Microscopy (SEM) is used to know the morphology. Finally, a discoloration test is conducted on an azo compound (methylene blue) in an aqueous medium, obtaining an efficiency of 98.6%.

关键词： Organic Bio-Absorbents natural and Modified Sugarcane Bagasse Methylene Blue Sugarcane Bagasse Characterization

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