Article
Comparison of the RNA content of extracellular vesicles derived from Paracoccidioides brasiliensis and Paracoccidioides lutzii
Registro en:
SILVA, Roberta Peres da et al. Comparison of the RNA Content of Extracellular Vesicles Derived from Paracoccidioides brasiliensis and Paracoccidioides lutzii. Cells, v. 8, n. 765, p. 1-21, 2019.
2073-4409
10.3390/cells8070765
2073-4409
Autor
Silva, Roberta Peres da
Longo, Larissa G. V.
Cunha, Julia P. C. da
Sobreira, Tiago J. P.
Rodrigues, Marcio Lourenço
Faoro, Helisson
Goldenberg, Samuel
Alves, Lysangela Ronalte
Puccia, Rosana
Resumen
Paracoccidioides brasiliensis and P. lutzii cause human paracoccidioidomycosis. We have previously characterized the <200-nt RNA sub-populations contained in fungal extracellular vesicles (EVs) from P. brasiliensis Pb18 and other pathogenic fungi. We have presently used the RNA-seq strategy to compare the <200- and >200-nt RNA fractions contained in EVs isolated from culture supernatants of P. brasiliensis Pb18, Pb3, and P. lutzii Pb01. Shared mRNA sequences were related to protein modification, translation, and DNA metabolism/biogenesis, while those related to transport and oxidation-reduction were exclusive to Pb01. The presence of functional full-length mRNAs was validated by in vitro translation. Among small non-coding (nc)RNA, 15 were common to all samples; small nucleolar (sno)RNAs were enriched in P. brasiliensis EVs, whereas for P. lutzii there were similar proportions of snoRNA, rRNA, and tRNA. Putative exonic sRNAs were highly abundant in Pb18 EVs. We also found sRNA sequences bearing incomplete microRNA structures mapping to exons. RNA-seq data suggest that extracellular fractions containing Pb18 EVs can modulate the transcriptome of murine monocyte-derived dendritic cells in a transwell system. Considering that sRNA classes are involved in transcription/translation modulation, our general results may indicate that differences in virulence among fungal isolates can be related to their distinct EV-RNA content.