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Santiago-Carvalho I, Almeida-Santos G, Macedo BG, Barbosa-Bomfim CC, Almeida FM, Pinheiro Cione MV, Vardam-Kaur T, Masuda M, Van Dijk S, Melo BM, Silva do Nascimento R, da Conceição Souza R, Peixoto-Rangel AL, Coutinho-Silva R, Hirata MH, Alves-Filho JC, Álvarez JM, Lassounskaia E, Borges da Silva H, D'Império-Lima MR. T cell-specific P2RX7 favors lung parenchymal CD4 + T cell accumulation in response to severe lung infections. Cell Rep 2023; 42:113448. [PMID: 37967010 PMCID: PMC10841667 DOI: 10.1016/j.celrep.2023.113448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 08/07/2023] [Accepted: 11/01/2023] [Indexed: 11/17/2023] Open
Abstract
CD4+ T cells are key components of the immune response during lung infections and can mediate protection against tuberculosis (TB) or influenza. However, CD4+ T cells can also promote lung pathology during these infections, making it unclear how these cells control such discrepant effects. Using mouse models of hypervirulent TB and influenza, we observe that exaggerated accumulation of parenchymal CD4+ T cells promotes lung damage. Low numbers of lung CD4+ T cells, in contrast, are sufficient to protect against hypervirulent TB. In both situations, lung CD4+ T cell accumulation is mediated by CD4+ T cell-specific expression of the extracellular ATP (eATP) receptor P2RX7. P2RX7 upregulation in lung CD4+ T cells promotes expression of the chemokine receptor CXCR3, favoring parenchymal CD4+ T cell accumulation. Our findings suggest that direct sensing of lung eATP by CD4+ T cells is critical to induce tissue CD4+ T cell accumulation and pathology during lung infections.
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Affiliation(s)
- Igor Santiago-Carvalho
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP 05508-000, Brazil; Department of Immunology, Mayo Clinic, Scottsdale, AZ 85259, USA
| | - Gislane Almeida-Santos
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP 05508-000, Brazil
| | | | - Caio Cesar Barbosa-Bomfim
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP 05508-000, Brazil
| | - Fabricio Moreira Almeida
- Laboratory of Biology of Recognition, North Fluminense State University, Campos, RJ 28013-602, Brazil
| | | | | | - Mia Masuda
- Department of Immunology, Mayo Clinic, Scottsdale, AZ 85259, USA
| | - Sarah Van Dijk
- Department of Immunology, Mayo Clinic, Scottsdale, AZ 85259, USA
| | - Bruno Marcel Melo
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP 14040-900, Brazil
| | - Rogério Silva do Nascimento
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP 05508-000, Brazil
| | - Rebeka da Conceição Souza
- Laboratory of Biology of Recognition, North Fluminense State University, Campos, RJ 28013-602, Brazil
| | | | - Robson Coutinho-Silva
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil
| | - Mario Hiroyuki Hirata
- Department of Clinical and Toxicological Analysis, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP 05508-000, Brazil
| | - José Carlos Alves-Filho
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP 14040-900, Brazil
| | - José Maria Álvarez
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP 05508-000, Brazil
| | - Elena Lassounskaia
- Laboratory of Biology of Recognition, North Fluminense State University, Campos, RJ 28013-602, Brazil
| | | | - Maria Regina D'Império-Lima
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP 05508-000, Brazil.
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Pereira WJ, Almeida FM, Conde D, Balmant KM, Triozzi PM, Schmidt HW, Dervinis C, Pappas GJ, Kirst M. Asc-Seurat: analytical single-cell Seurat-based web application. BMC Bioinformatics 2021; 22:556. [PMID: 34794383 PMCID: PMC8600690 DOI: 10.1186/s12859-021-04472-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 11/10/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Single-cell RNA sequencing (scRNA-seq) has revolutionized the study of transcriptomes, arising as a powerful tool for discovering and characterizing cell types and their developmental trajectories. However, scRNA-seq analysis is complex, requiring a continuous, iterative process to refine the data and uncover relevant biological information. A diversity of tools has been developed to address the multiple aspects of scRNA-seq data analysis. However, an easy-to-use web application capable of conducting all critical steps of scRNA-seq data analysis is still lacking. We present Asc-Seurat, a feature-rich workbench, providing an user-friendly and easy-to-install web application encapsulating tools for an all-encompassing and fluid scRNA-seq data analysis. Asc-Seurat implements functions from the Seurat package for quality control, clustering, and genes differential expression. In addition, Asc-Seurat provides a pseudotime module containing dozens of models for the trajectory inference and a functional annotation module that allows recovering gene annotation and detecting gene ontology enriched terms. We showcase Asc-Seurat's capabilities by analyzing a peripheral blood mononuclear cell dataset. CONCLUSIONS Asc-Seurat is a comprehensive workbench providing an accessible graphical interface for scRNA-seq analysis by biologists. Asc-Seurat significantly reduces the time and effort required to analyze and interpret the information in scRNA-seq datasets.
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Affiliation(s)
- W J Pereira
- School of Forest, Fisheries, and Geomatics Sciences, University of Florida, Gainesville, FL, 32611, USA.
| | - F M Almeida
- Department of Cell Biology, Institute of Biological Sciences, University of Brasília, Brasília, DF, 70910-900, Brazil
| | - D Conde
- School of Forest, Fisheries, and Geomatics Sciences, University of Florida, Gainesville, FL, 32611, USA
| | - K M Balmant
- School of Forest, Fisheries, and Geomatics Sciences, University of Florida, Gainesville, FL, 32611, USA
| | - P M Triozzi
- School of Forest, Fisheries, and Geomatics Sciences, University of Florida, Gainesville, FL, 32611, USA
| | - H W Schmidt
- School of Forest, Fisheries, and Geomatics Sciences, University of Florida, Gainesville, FL, 32611, USA
| | - C Dervinis
- School of Forest, Fisheries, and Geomatics Sciences, University of Florida, Gainesville, FL, 32611, USA
| | - G J Pappas
- Department of Cell Biology, Institute of Biological Sciences, University of Brasília, Brasília, DF, 70910-900, Brazil
| | - M Kirst
- School of Forest, Fisheries, and Geomatics Sciences, University of Florida, Gainesville, FL, 32611, USA
- Genetics Institute, University of Florida, Gainesville, FL, 32611, USA
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Magalhães BSN, Pereira VLA, Machado LS, Dias TS, Balthazar DA, Barreto ML, Troccoli F, Cunha NC, Nascimento ER, Almeida FM, Almosny NR. Occurrence of Avian Mycoplasmas in Free-Living Muscovy-Ducks (Cairina Moschata). Braz J Poult Sci 2020. [DOI: 10.1590/1806-9061-2020-1352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
| | | | | | - TS Dias
- Universidade Federal Fluminense, Brazil
| | - DA Balthazar
- Universidade Federal Rural do Rio de Janeiro, Brazil
| | | | - F Troccoli
- Fundação Zoológico do Rio de Janeiro, Brazil
| | - NC Cunha
- Universidade Federal Fluminense, Brazil; Universidade Federal Fluminense, Brazil
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Gomes IA, de Carvalho FO, de Menezes AF, Almeida FM, Shanmugam S, de Souza Siqueira Quintans J, Quintans-Júnior LJ, de Moura TR, Oliveira PD, de Souza Araújo AA. The role of interleukins in vitiligo: a systematic review. J Eur Acad Dermatol Venereol 2018; 32:2097-2111. [PMID: 29704266 DOI: 10.1111/jdv.15016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 03/20/2018] [Indexed: 12/30/2022]
Abstract
Vitiligo is a disorder of the skin that causes depigmentation and asymptomatic macules whose exact cause is still unclear. Although its aetiology is not fully elucidated, the main theory of its pathomechanism is that it is associated with the autoimmune process. There is few summarized information about the role of inflammatory mediators, as interleukins, in vitiligo, so our aim was to present a systematic review of the role of interleukins in vitiligo, focusing on interleukins. In this review, we included all studies assessing interleukin levels in vitiligo patients conducted up to June 2017. Quality assessment of these studies was performed using the Newcastle-Ottawa Scale (NOS). The interleukins mainly involved were IL-2, IL-4, IL-6, IL-10 and IL-17. The studies highlight the crucial role of IL-17 in the onset and progression of the disease, and its synergistic action with IL-2, IL-6 and IL-33. Dysregulated levels of the interleukins were also correlated with the stage of disease, the affected skin surface area, and indicated as the main factor for lymphocyte infiltration found in depigmented regions. These findings illustrate the growing need for new therapies targeting vitiligo and further research into the role of interleukins as an area of particular interest.
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Affiliation(s)
- I A Gomes
- Programa de Pós-Graduação em Ciências Farmacêuticas da Universidade Federal de Sergipe - UFS, Campus Universitário "Prof. Aloísio de Campos", São Cristóvão, SE, Brazil
| | - F O de Carvalho
- Núcleo de Pós-Graduação em Medicina da Universidade Federal de Sergipe - UFS, Rua Cláudio Batista S/N Bairro Sanatório, Aracaju, SE, Brasil
| | - A F de Menezes
- Núcleo de Pós-Graduação em Medicina da Universidade Federal de Sergipe - UFS, Rua Cláudio Batista S/N Bairro Sanatório, Aracaju, SE, Brasil
| | - F M Almeida
- Departamento de Farmácia, Universidade Federal de Sergipe, Campus Universitário "Prof. Aloísio de Campos", São Cristóvão, SE, Brazil
| | - S Shanmugam
- Programa de Pós-Graduação em Ciências Farmacêuticas da Universidade Federal de Sergipe - UFS, Campus Universitário "Prof. Aloísio de Campos", São Cristóvão, SE, Brazil
| | - J de Souza Siqueira Quintans
- Departamento de Fisiologia, Universidade Federal de Sergipe, Campus Universitário "Prof. Aloísio de Campos", São Cristóvão, SE, Brazil
| | - L J Quintans-Júnior
- Departamento de Fisiologia, Universidade Federal de Sergipe, Campus Universitário "Prof. Aloísio de Campos", São Cristóvão, SE, Brazil
| | - T R de Moura
- Departamento de Fisiologia, Universidade Federal de Sergipe, Campus Universitário "Prof. Aloísio de Campos", São Cristóvão, SE, Brazil
| | - P D Oliveira
- Programa de Pós-Graduação em Ciências Farmacêuticas da Universidade Federal de Sergipe - UFS, Campus Universitário "Prof. Aloísio de Campos", São Cristóvão, SE, Brazil
| | - A A de Souza Araújo
- Programa de Pós-Graduação em Ciências Farmacêuticas da Universidade Federal de Sergipe - UFS, Campus Universitário "Prof. Aloísio de Campos", São Cristóvão, SE, Brazil
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Pereira Lopes FR, Martin PKM, Frattini F, Biancalana A, Almeida FM, Tomaz MA, Melo PA, Borojevic R, Han SW, Martinez AMB. Double gene therapy with granulocyte colony-stimulating factor and vascular endothelial growth factor acts synergistically to improve nerve regeneration and functional outcome after sciatic nerve injury in mice. Neuroscience 2012; 230:184-97. [PMID: 23103791 DOI: 10.1016/j.neuroscience.2012.10.025] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 10/09/2012] [Accepted: 10/10/2012] [Indexed: 12/17/2022]
Abstract
Peripheral-nerve injuries are a common clinical problem and often result in long-term functional deficits. Reconstruction of peripheral-nerve defects is currently undertaken with nerve autografts. However, there is a limited availability of nerves that can be sacrificed and the functional recovery is never 100% satisfactory. We have previously shown that gene therapy with vascular endothelial growth factor (VEGF) significantly improved nerve regeneration, neuronal survival, and muscle activity. Our hypothesis is that granulocyte colony-stimulating factor (G-CSF) synergizes with VEGF to improve the functional outcome after sciatic nerve transection. The left sciatic nerves and the adjacent muscle groups of adult mice were exposed, and 50 or 100 μg (in 50 μl PBS) of VEGF and/or G-CSF genes was injected locally, just below the sciatic nerve, and transferred by electroporation. The sciatic nerves were transected and placed in an empty polycaprolactone (PCL) nerve guide, leaving a 3-mm gap to challenge nerve regeneration. After 6 weeks, the mice were perfused and the sciatic nerve, the dorsal root ganglion (DRG), the spinal cord and the gastrocnemius muscle were processed for light and transmission electron microscopy. Treated animals showed significant improvement in functional and histological analyses compared with the control group. However, the best results were obtained with the G-CSF+VEGF-treated animals: quantitative analysis of regenerated nerves showed a significant increase in the number of myelinated fibers and blood vessels, and the number of neurons in the DRG and motoneurons in the spinal cord was significantly higher. Motor function also showed that functional recovery occurred earlier in animals receiving G-CSF+VEGF-treatment. The gastrocnemius muscle showed an increase in weight and in the levels of creatine phosphokinase, suggesting an improvement of reinnervation and muscle activity. These results suggest that these two factors acted synergistically and optimized the nerve repair potential, improving regeneration after a transection lesion.
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Affiliation(s)
- F R Pereira Lopes
- Programa de Neurociência Básica e Clínica, Instituto de Ciências Biomédicas, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, RJ, Brazil
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Almeida FM, Pimenta AMC, De Figueiredo SG, Santoro MM, Martin-Eauclaire MF, Diniz CR, De Lima ME. Enzymes with gelatinolytic activity can be found in Tityus bahiensis and Tityus serrulatus venoms. Toxicon 2002; 40:1041-5. [PMID: 12076659 DOI: 10.1016/s0041-0101(02)00084-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Enzymes with gelatinolytic activity were detected in Tityus bahiensis and Tityus serrulatus venom. Their activity was optimal at pH 8.0 in SDS-PAGE-gelatin. They were inhibited by PMSF but not by iodoacetamide, pepstatin or phenantrolin in the assay conditions used. This suggests that these enzymes are serine proteases. The presence of metal ions did not affect the proteolytic activity of these enzymes. Several possible functions may be envisaged for these enzymes: in tissue permeabilization, pancreatitis and toxin processing.
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Affiliation(s)
- F M Almeida
- Laboratório de Venenos e Toxinas Animais, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antonio Carlos, 6627, 31270-901 Belo Horizonte, Brazil
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Abstract
Report of the case of a Caucasian girl, presently 3 years old, who has been followed at the Pediatric Service of the Walter Cantidio Hospital (Federal University of Ceará; Fortaleza, Brazil) since she was 15 days old. At birth she presented a duplication of the bladder, urethra, external genitalia, vagina, colon, and rectum. No cardiac anomalies, bone deformities, or other congenital malformations were detected. When she was 16 months old the child underwent corrective surgery, with rectal vault reconstruction, placing a single and continent anal sphincter in its usual position and resection of the longitudinal vaginal septum, forming a single vaginal cavity. The surgery also resulted in a perineum of normal appearance. Presently, the patient is doing well.
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Affiliation(s)
- M L Magalhaes
- Sector of Child and Adolescent Gynecology, Faculdade de Medicina da Universidade Federal do Ceará, Fortaleza-Caerá, Brazil
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Almeida FM, Lopes JH, Simões JA, Ramalho AJ. Production and decay of single heavy spin-3/2 leptons in high energy electron-positron collisions. Phys Rev D Part Fields 1996; 53:3555-3558. [PMID: 10020349 DOI: 10.1103/physrevd.53.3555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Almeida FM, Lopes JH, Porto CM. Looking for new single heavy leptons in electron-positron collisions. Phys Rev D Part Fields 1991; 44:2836-2840. [PMID: 10014172 DOI: 10.1103/physrevd.44.2836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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