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Allan J. Guimarães
Researcher at Federal Fluminense University
Publications - 76
Citations - 2255
Allan J. Guimarães is an academic researcher from Federal Fluminense University. The author has contributed to research in topics: Cryptococcus neoformans & Histoplasma. The author has an hindex of 24, co-authored 66 publications receiving 1832 citations. Previous affiliations of Allan J. Guimarães include Oswaldo Cruz Foundation & Yeshiva University.
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Journal ArticleDOI
Characterization of yeast extracellular vesicles: evidence for the participation of different pathways of cellular traffic in vesicle biogenesis.
Débora L. Oliveira,Ernesto S. Nakayasu,Ernesto S. Nakayasu,Luna S. Joffe,Allan J. Guimarães,Tiago J. P. Sobreira,Joshua D. Nosanchuk,Radames J. B. Cordero,Susana Frases,Arturo Casadevall,Igor C. Almeida,Leonardo Nimrichter,Marcio L. Rodrigues +12 more
TL;DR: The results suggest that both conventional and unconventional pathways of secretion are required for biogenesis of extracellular vesicles, which demonstrate the complexity of this process in the biology of yeast cells.
Journal ArticleDOI
Compositional and immunobiological analyses of extracellular vesicles released by Candida albicans
Gabriele Vargas,Juliana Dutra B. Rocha,Débora L. Oliveira,Priscila C. Albuquerque,Susana Frases,Suelen Silvana dos Santos,Joshua Daniel Nosanchuk,Andre M. O. Gomes,Lia Carolina Soares Medeiros,Kildare Miranda,Tiago J. P. Sobreira,Ernesto S. Nakayasu,Emma Arigi,Arturo Casadevall,Allan J. Guimarães,Marcio L. Rodrigues,Marcio L. Rodrigues,Celio Geraldo Freire-de-Lima,Igor C. Almeida,Leonardo Nimrichter +19 more
TL;DR: The results demonstrate that C. albicans EV were immunologically active and could potentially interfere with the host responses in the setting of invasive candidiasis.
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Diagnosis of histoplasmosis
TL;DR: The current conventional diagnostic tools, such as complement fixation and immunodiffusion, are reviewed, the development of novel diagnostic reagents and methods are outlined, and their relative merits and disadvantages are discussed to the immunodiagnostic of this mycosis.
Journal ArticleDOI
Phospholipids trigger Cryptococcus neoformans capsular enlargement during interactions with amoebae and macrophages.
TL;DR: Phospholipids are the first host-derived molecules identified to trigger capsular enlargement in vivo and exopolysaccharide production and provide additional support for the notion that certain aspects of cryptococcal virulence emerged as a consequence of environmental interactions with other microorganisms such as protists.
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Acanthamoeba spp. as a universal host for pathogenic microorganisms: One bridge from environment to host virulence.
Allan J. Guimarães,Kamilla Xavier Gomes,Juliana R. Cortines,José Mauro Peralta,Regina Helena Saramago Peralta +4 more
TL;DR: In this mini-review, the most important aspects of Acanthamoeba biology and their interactions with endemically important human pathogens are covered.