Association of miR-141 and miR-200c with time to recurrence (TTR) and overall survival (OS) in resected non-small-cell lung cancer (NSCLC) adenocarcinoma (ADC) patients (p)

Autor:	Alfons Navarro, Marc Campayo, Maria L Cabanas, Laureano Molins, Rut Tejero, José Ramírez, Nuria Viñolas, Ramon M. Marrades, Mariano Monzo
Rok vydání:	2013
Předmět:	Oncology Surgical resection Cancer Research medicine.medical_specialty biology business.industry non-small cell lung cancer (NSCLC) medicine.disease Transthyretin Time to recurrence Curative treatment Internal medicine biology.protein medicine Overall survival Adenocarcinoma Mir 200c business
Zdroj:	Journal of Clinical Oncology. 31:7547-7547
ISSN:	1527-7755 0732-183X
DOI:	10.1200/jco.2013.31.15_suppl.7547
Popis:	7547 Background: Surgical resection remains the standard curative treatment for early-stage NSCLC, but nearly 50% of p experience recurrence, highlighting the need for novel diagnostic and therapeutic strategies. Moreover, treatments in NSCLC are often histology-dependent, underlining the need for histology-related markers. MicroRNAs (miRNAs) are promising molecular markers in cancer, with marked differences in expression according to histology. miR-200 family members have been associated in vitro with the regulation of epithelial-mesenchymal transition. We have examined their impact on outcome in resected NSCLC p. Methods: We analyzed miRNA expression using TaqMan assays in 160 tumor samples from NSCLC p who had undergone surgical resection and correlated our findings with TTR and OS. Results: p characteristics: age, 67 (51-83); 140 male; 96 (60%) stage I, 34 (21.3%) stage II, 30 (18.7%) stage III; 77(48.1%) ADC, 71(44.4%) squamous cell carcinoma (SCC); 16 (9.1%) received adjuvant treatment. With a median follow-up of 28 months (m), 64 p (40%) had relapsed. TTR for the 107 p with high miR-200c was 26.7 m vs 100.2 m for the 52 p with low miR-200c (P=0.032). OS for p with high miR-200c was 71.2 m vs. 125 m for p with low miR-200c (P=0.01). TTR for 112 p with high miR-141 was 26.7 m vs. 100.2 m for 46 p with low miR-141 (P=0.06). OS for p with high miR-141 was 72 m vs. 118 m for p with low miR-141 (P=0.02). Interestingly, neither miR-200c nor miR-141 correlated with TTR or OS in SCC p. In contrast, in ADC p, the prognostic value of both miRNAs increased: miR-200c (TTR, P=0.01; OS, P65 (OR: 3.3, P=0.001) and stage I (OR: 0.3, P=0.004). Conclusions: miR-200c and miR-141 expression is associated with TTR and OS in resected ADC but not in SCC NSCLC p.
Databáze:	OpenAIRE
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