Identificação de fatores diabetogênicos associados ao adenocarcinoma de pâncreas / Identification of diabetogenic factors associated to pancreatic adenocarcinoma

RESUMO

O objetivo deste estudo foi identificar genes diferencialmente expressos entre adenocarcinoma de pâncreas de pacientes com e sem diabetes melito, utilizando microarranjos de oligonucleotídeos hibridizados com cRNA de tumores advindos de pacientes nessas duas condições. Observou-se nos microarranjos que 293 genes estavam pelo menos duas vezes mais expressos nos tumores dos pacientes com diabetes melito. Outros 297 genes estavam mais expressos nos tumores dos não-diabéticos. Em RT-PCR quantitativa, um dos genes, o FAM3D, estava mais expresso nos tumores dos portadores de diabetes melito do que nos tumores dos não-diabéticos...

ABSTRACT

The objective of the present study was to identify differentially expressed genes between pancreatic adenocarcinoma from patients who had and who did not have diabetes mellitus. Oligonucleotides bioarrays were hybridized with complementary RNA from tumors of two diabetic and two normotolerant patients. It was observed that 293 genes were at least twice more expressed in tumors from diabetic patients. Other 297 genes were more expressed in tumors from normotolerant patients. In quantitative RT-PCR performed in 12 tumors samples, FAM3D mRNA was more expressed in tumors from diabetic than in tumors from non-diabetic patients...