New prognostic markers revealed by RNA-Seq transcriptome analysis after MYC silencing in a metastatic gastric cancer cell line.

Autor:	Lopes LO; Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, Brazil., Maués JH; Laboratory of Molecular Biology, Ophir Loyola Hospital, Belém, Brazil., Ferreira-Fernandes H; Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, Brazil., Yoshioka FK; Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, Brazil., Júnior SCS; Course of Medicine, Federal University of Piauí, Parnaíba, Brazil., Santos AR; Computer Science Department, State University of Piauí, Piripiri, Brazil., Ribeiro HF; Institute of Biological Sciences, Federal University of Pará, Belém, Brazil., Rey JA; Molecular Oncogenetics Laboratory, Hospital Universitario La Paz, Madrid, Spain., Soares PC; Laboratory of Molecular Biology, Ophir Loyola Hospital, Belém, Brazil., Burbano RR; Laboratory of Molecular Biology, Ophir Loyola Hospital, Belém, Brazil.; Institute of Biological Sciences, Federal University of Pará, Belém, Brazil., Pinto GR; Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, Brazil.
Jazyk:	angličtina
Zdroj:	Oncotarget [Oncotarget] 2019 Oct 08; Vol. 10 (56), pp. 5768-5779. Date of Electronic Publication: 2019 Oct 08 (Print Publication: 2019).
DOI:	10.18632/oncotarget.27208
Abstrakt:	MYC overexpression is considered a driver event in gastric cancer (GC), and is frequently correlated with poor prognosis and metastasis. In this study, we evaluated the prognostic value of genes upregulated by MYC in patients with GC. Metastatic GC cells (AGP01) characterized by MYC amplification, were transfected with siRNAs targeting MYC . RNA-seq was performed in silenced and non-silenced AGP01 cells. Among the differentially expressed genes, CIAPIN1 , MTA2 , and UXT were validated using qRT-PCR, western blot, and immunohistochemistry in gastric tissues of 213 patients with GC; and their expressions were correlated with clinicopathological and survival data. High mRNA and protein levels of CIAPIN1 , MTA2 , and UXT were strongly associated with advanced GC stages ( P < 0.0001). However, only CIAPIN1 and UXT gene expressions were able to predict distant metastases in patients with early-stage GC ( P < 0.0001), with high sensitivity (> 92%) and specificity (> 90%). Overall survival rate of patients with overexpressed CIAPIN1 or UXT was significantly lower ( P < 0.0001). In conclusion, CIAPIN1 and UXT may serve as potential molecular markers for GC prognosis. Competing Interests: CONFLICTS OF INTEREST The authors declare that they have no conflicts of interest (Copyright: © 2019 Lopes et al.)
Databáze:	MEDLINE
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