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Seery V, Raiden SC, Algieri SC, Grisolía NA, Filippo D, De Carli N, Di Lalla S, Cairoli H, Chiolo MJ, Meregalli CN, Gimenez LI, Gregorio G, Sarli M, Alcalde AL, Davenport C, Bruera MJ, Simaz N, Pérez MF, Nivela V, Bayle C, Tuccillo P, Agosta MT, Pérez H, Villa Nova S, Suárez P, Takata EM, García M, Lattner J, Rolón MJ, Coll P, Sananez I, Holgado MP, Ferrero F, Geffner J, Arruvito L. Blood neutrophils from children with COVID-19 exhibit both inflammatory and anti-inflammatory markers. EBioMedicine 2021; 67:103357. [PMID: 33979758 PMCID: PMC8153212 DOI: 10.1016/j.ebiom.2021.103357] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/10/2021] [Accepted: 04/12/2021] [Indexed: 12/15/2022] Open
Abstract
Background Perhaps reflecting that children with COVID-19 rarely exhibit severe respiratory symptoms and often remain asymptomatic, little attention has been paid to explore the immune response in pediatric COVID-19. Here, we analyzed the phenotype and function of circulating neutrophils from children with COVID-19. Methods An observational study including 182 children with COVID-19, 21 children with multisystem inflammatory syndrome (MIS-C), and 40 healthy children was performed in Buenos Aires, Argentina. Neutrophil phenotype was analyzed by flow cytometry in blood samples. Cytokine production, plasma levels of IgG antibodies directed to the spike protein of SARS-CoV-2 and citrullinated histone H3 were measured by ELISA. Cell-free DNA was quantified by fluorometry. Findings Compared with healthy controls, neutrophils from children with COVID-19 showed a lower expression of CD11b, CD66b, and L-selectin but a higher expression of the activation markers HLA-DR, CD64 and PECAM-1 and the inhibitory receptors LAIR-1 and PD-L1. No differences in the production of cytokines and NETs were observed. Interestingly, the expression of CD64 in neutrophils and the serum concentration of IgG antibodies directed to the spike protein of SARS-CoV-2 distinguished asymptomatic from mild and moderate COVID-19. Interpretation Acute lung injury is a prominent feature of severe COVID-19 in adults. A low expression of adhesion molecules together with a high expression of inhibitory receptors in neutrophils from children with COVID-19 might prevent tissue infiltration by neutrophils preserving lung function.
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Affiliation(s)
- Vanesa Seery
- Instituto de Investigaciones Biomédicas en Retrovirus y SIDA, Facultad de Medicina. UBA-CONICET, Paraguay 2155, C1121ABG CABA, Argentina
| | - Silvina C Raiden
- Departamento de Medicina, Hospital General de Niños Pedro de Elizalde. Av. Montes de Oca 40, CABA C1270, Argentina
| | - Silvia C Algieri
- Servicio de Pediatría, Hospital Nacional Profesor Alejandro Posadas, Marconi Morón 386, Buenos Aires B1684, Argentina
| | - Nicolás A Grisolía
- Departamento de Medicina, Hospital General de Niños Pedro de Elizalde. Av. Montes de Oca 40, CABA C1270, Argentina
| | - Daniela Filippo
- Servicio de Pediatría, Hospital Municipal Diego Thompson. Avellaneda 33, Buenos Aires B1650, Argentina
| | - Norberto De Carli
- Servicio de Pediatría, Clínica del Niño de Quilmes, Av. Lamadrid 444, Buenos Aires B1878, Argentina
| | - Sandra Di Lalla
- Departamento de Consultorios Externos, Hospital General de Niños Pedro de Elizalde, Av. Montes de Oca 40, CABA C1270, Argentina
| | - Héctor Cairoli
- Departamento de Medicina, Hospital General de Niños Pedro de Elizalde. Av. Montes de Oca 40, CABA C1270, Argentina
| | - María J Chiolo
- Departamento de Cirugía, Hospital General de Niños Pedro de Elizalde, Av. Montes de Oca 40, CABA C1270, Argentina
| | - Claudia N Meregalli
- Unidad de Terapia Intensiva Pediátrica, Departamento de Urgencias, Hospital General de Niños Pedro de Elizalde. Av. Montes de Oca 40, CABA C1270, Argentina
| | - Lorena I Gimenez
- Servicio de Pediatría, Hospital Municipal Diego Thompson. Avellaneda 33, Buenos Aires B1650, Argentina
| | - Gabriela Gregorio
- Servicio de Pediatría, Hospital Nacional Profesor Alejandro Posadas, Marconi Morón 386, Buenos Aires B1684, Argentina
| | - Mariam Sarli
- Unidad de Terapia Intensiva Pediátrica, Hospital Nacional Profesor Alejandro Posadas, Marconi Morón 386, Buenos Aires B1684, Argentina
| | - Ana L Alcalde
- Servicio de Pediatría, Hospital Nacional Profesor Alejandro Posadas, Marconi Morón 386, Buenos Aires B1684, Argentina
| | - Carolina Davenport
- Departamento de Medicina, Hospital General de Niños Pedro de Elizalde. Av. Montes de Oca 40, CABA C1270, Argentina
| | - María J Bruera
- Unidad de Terapia Intensiva Pediátrica, Hospital Nacional Profesor Alejandro Posadas, Marconi Morón 386, Buenos Aires B1684, Argentina
| | - Nancy Simaz
- Servicio de Pediatría, Hospital Nacional Profesor Alejandro Posadas, Marconi Morón 386, Buenos Aires B1684, Argentina
| | - Mariela F Pérez
- Servicio de Pediatría, Hospital Nacional Profesor Alejandro Posadas, Marconi Morón 386, Buenos Aires B1684, Argentina
| | - Valeria Nivela
- Departamento de Emergencias Pediátrica, Hospital Nacional Profesor Alejandro Posadas, Marconi Morón 386, Buenos Aires B1684, Argentina
| | - Carola Bayle
- Departamento de Emergencias Pediátrica, Hospital Nacional Profesor Alejandro Posadas, Marconi Morón 386, Buenos Aires B1684, Argentina
| | - Patricia Tuccillo
- Servicio de Pediatría, Hospital Naval Cirujano Mayor Dr. Pedro Mallo, Av. Patricias Argentinas 351, CABA C1405, Argentina
| | - María T Agosta
- Servicio de Pediatría, Hospital Naval Cirujano Mayor Dr. Pedro Mallo, Av. Patricias Argentinas 351, CABA C1405, Argentina
| | - Hernán Pérez
- Servicio de Pediatría, Hospital Naval Cirujano Mayor Dr. Pedro Mallo, Av. Patricias Argentinas 351, CABA C1405, Argentina
| | - Susana Villa Nova
- Servicio de Pediatría, Hospital General de Agudos Dr. Juan A. Fernández, Av. Cerviño 3356, CABA C1425, Argentina
| | - Patricia Suárez
- Servicio de Pediatría, Hospital General de Agudos Dr. Juan A. Fernández, Av. Cerviño 3356, CABA C1425, Argentina
| | - Eugenia M Takata
- Servicio de Pediatría, Hospital General de Agudos Dr. Juan A. Fernández, Av. Cerviño 3356, CABA C1425, Argentina
| | - Mariela García
- Servicio de Pediatría, Hospital General de Agudos Dr. Juan A. Fernández, Av. Cerviño 3356, CABA C1425, Argentina
| | - Jorge Lattner
- Servicio de Infectología Pediátrica, Hospital Naval Cirujano Mayor Dr. Pedro Mallo, Av. Patricias Argentinas 351, CABA C1405, Argentina
| | - María J Rolón
- División Infectología, Hospital General de Agudos Dr. Juan A. Fernández, Av. Cerviño 3356, CABA C1425, Argentina
| | - Patricia Coll
- División Infectología, Hospital General de Agudos Dr. Juan A. Fernández, Av. Cerviño 3356, CABA C1425, Argentina
| | - Inés Sananez
- Instituto de Investigaciones Biomédicas en Retrovirus y SIDA, Facultad de Medicina. UBA-CONICET, Paraguay 2155, C1121ABG CABA, Argentina
| | - María P Holgado
- Instituto de Investigaciones Biomédicas en Retrovirus y SIDA, Facultad de Medicina. UBA-CONICET, Paraguay 2155, C1121ABG CABA, Argentina
| | - Fernando Ferrero
- Departamento de Medicina, Hospital General de Niños Pedro de Elizalde. Av. Montes de Oca 40, CABA C1270, Argentina
| | - Jorge Geffner
- Instituto de Investigaciones Biomédicas en Retrovirus y SIDA, Facultad de Medicina. UBA-CONICET, Paraguay 2155, C1121ABG CABA, Argentina
| | - Lourdes Arruvito
- Instituto de Investigaciones Biomédicas en Retrovirus y SIDA, Facultad de Medicina. UBA-CONICET, Paraguay 2155, C1121ABG CABA, Argentina.
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Abstract
Synapses are the sites of neuron-to-neuron communication and form the basis of the neural circuits that underlie all animal cognition and behavior. Chemical synapses are specialized asymmetric junctions between a presynaptic neuron and a postsynaptic target that form through a series of diverse cellular and subcellular events under the control of complex signaling networks. Once established, the synapse facilitates neurotransmission by mediating the organization and fusion of synaptic vesicles and must also retain the ability to undergo plastic changes. In recent years, synaptic genes have been implicated in a wide array of neurodevelopmental disorders; the individual and societal burdens imposed by these disorders, as well as the lack of effective therapies, motivates continued work on fundamental synapse biology. The properties and functions of the nervous system are remarkably conserved across animal phyla, and many insights into the synapses of the vertebrate central nervous system have been derived from studies of invertebrate models. A prominent model synapse is the Drosophila melanogaster larval neuromuscular junction, which bears striking similarities to the glutamatergic synapses of the vertebrate brain and spine; further advantages include the simplicity and experimental versatility of the fly, as well as its century-long history as a model organism. Here, we survey findings on the major events in synaptogenesis, including target specification, morphogenesis, and the assembly and maturation of synaptic specializations, with a emphasis on work conducted at the Drosophila neuromuscular junction.
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Affiliation(s)
- Vivian T Chou
- Department of Cell Biology and Program in Neuroscience, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Seth A Johnson
- Department of Cell Biology and Program in Neuroscience, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA.
| | - David Van Vactor
- Department of Cell Biology and Program in Neuroscience, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA.
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Fonseca ICCFE, da Luz FAC, Uehara IA, Silva MJB. Cell-adhesion molecules and their soluble forms: Promising predictors of "tumor progression" and relapse in leukemia. Tumour Biol 2018; 40:1010428318811525. [PMID: 30486756 DOI: 10.1177/1010428318811525] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Some surface markers are used to discriminate certain leukemic subpopulations that retain a greater oncogenic potential than others, and, for this reason, they were termed as leukemic stem cells, similar to the concept of cancer stem cells in carcinoma. Among these surface markers are proteins involved in cell-cell adhesion or cell-matrix adhesion, and they may play a role in the relapse of leukemia, similar to metastasis in carcinomas. The most important are epithelial cadherin, neural cadherin, epithelial cell-adhesion molecule, and CD44, which can be cleaved and released, and their soluble forms were found increased in serum levels of cancer patients, being implicated, in some cases, with progression, metastases, and relapse. In this review, we highlighted the role of these four adhesion molecules in carcinomas and hematological malignancies, mainly leukemia, and discuss if the serum levels of soluble forms can be correlated with the surface protein status on the leukemic cells. Accession of the soluble forms looks attractive, but their use as markers in cancer must be studied in association with other parameters, as there are significant changes in levels in other pathological conditions besides cancer. Studies correlating the levels of the forms with the status of the membrane-bound proteins in leukemic (stem) cells and correlating those parameters with relapse in leukemia may afford important knowledge and applicability of those serum markers in clinical practice. For instance, the expression of the membrane-bound forms of these adhesion proteins may have promising clinical use in leukemia and other hematological malignancies.
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Affiliation(s)
| | - Felipe Andrés Cordero da Luz
- 1 Laboratory of Tumor Biomarkers and Osteoimmunology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
- 2 Nucleus of Cancer Prevention and Research, Cancer Hospital, Federal University of Uberlândia, Uberlândia, Brazil
| | - Isadora Akemi Uehara
- 1 Laboratory of Tumor Biomarkers and Osteoimmunology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Marcelo José Barbosa Silva
- 1 Laboratory of Tumor Biomarkers and Osteoimmunology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
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