2024
Characterization of Aspergillus fumigatus secretome during sublethal infection of Galleria mellonella larvae
CURTIS, Aaron, Pavel DOBEŠ, Jacek MARCINIAK, Jana HURYCHOVÁ, Pavel HYRŠL et. al.Základní údaje
Originální název
Characterization of Aspergillus fumigatus secretome during sublethal infection of Galleria mellonella larvae
Autoři
CURTIS, Aaron, Pavel DOBEŠ (203 Česká republika, domácí), Jacek MARCINIAK (203 Česká republika, domácí), Jana HURYCHOVÁ (203 Česká republika, domácí), Pavel HYRŠL (203 Česká republika, domácí) a Kevin KAVANAGH
Vydání
Journal of Medical Microbiology, Microbiology Society, 2024, 0022-2615
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10606 Microbiology
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.000 v roce 2022
Organizační jednotka
Přírodovědecká fakulta
UT WoS
001292084000007
Klíčová slova anglicky
Aspergillus; fungal–host interactions; Galleria mellonella; gliotoxin; proteomics
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 18. 9. 2024 09:53, Mgr. Marie Šípková, DiS.
Anotace
V originále
Introduction. The fungal pathogen Aspergillus fumigatus can induce prolonged colonization of the lungs of susceptible patients, resulting in conditions such as allergic bronchopulmonary aspergillosis and chronic pulmonary aspergillosis. Hypothesis. Analysis of the A. fumigatus secretome released during sub-lethal infection of G. mellonella larvae may give an insight into products released during prolonged human colonisation. Methodology. Galleria mellonella larvae were infected with A. fumigatus, and the metabolism of host carbohydrate and proteins and production of fungal virulence factors were analysed. Label-free qualitative proteomic analysis was performed to identify fungal proteins in larvae at 96 hours post-infection and also to identify changes in the Galleria proteome as a result of infection. Results. Infected larvae demonstrated increasing concentrations of gliotoxin and siderophore and displayed reduced amounts of haemolymph carbohydrate and protein. Fungal proteins (399) were detected by qualitative proteomic analysis in cell-free haemolymph at 96 hours and could be categorized into seven groups, including virulence (n = 25), stress response (n = 34), DNA repair and replication (n = 39), translation (n = 22), metabolism (n = 42), released intracellular (n = 28) and cellular development and cell cycle (n = 53). Analysis of the Gallerial proteome at 96 hours post-infection revealed changes in the abundance of proteins associated with immune function, metabolism, cellular structure, insect development, transcription/translation and detoxification. Conclusion. Characterizing the impact of the fungal secretome on the host may provide an insight into how A. fumigatus damages tissue and suppresses the immune response during long-term pulmonary colonization.