Trypanosoma cruzi: establishment of permeable cells for RNA processing analysis with drugs

AUTOR(ES)

Ambrósio, DL, Barbosa, CF, Vianna, VF, Cicarelli, RMB

FONTE

Memórias do Instituto Oswaldo Cruz

DATA DE PUBLICAÇÃO

2004-10

RESUMO

Pre-mRNA maturation in trypanosomatids occurs through a process called trans-splicing which involves excision of introns and union of exons in two independent transcripts. For the first time, we present the standardization of Trypanosoma cruzi permeable cells (Y strain) as a model for trans-splicing study of mRNAs in trypanosomes, following by RNase protection reaction, which localizes the SL exon and intron. This trans-splicing reaction in vitro was also used to analyze the influence of NFOH-121, a nitrofurazone-derivative, on this mechanism. The results suggested that the prodrug affects the RNA processing in these parasites, but the trans-splicing reaction still occurred.

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