Abstract
Many biomarkers have been reported to be independent prognostic factors in patients with lung cancer. KRAS mutations have been frequently associated with negative prognosis, although recent adjuvant chemotherapy trials filed to demonstrate prognostic role of KRAS. Prognostic significance of ERCC1 is controversial, and IALT showed prolonged survival in ERCC1-negative tumors treated with adjuvant chemotherapy. Numerous gene expression studies have reported prognostic gene expression signatures, although reported data are very heterogenous. The most cited prognostic signatures include a 5-gene signature with DUSP6 (dual-specificity phosphatase 6), MMD (monocyte-to-macrophage differentiation-associated protein), STAT1 (signal transducer and activator of transcription 1), ERBB3 (v-erb b2 avian erythroblastic leukemia viral oncogene homolog 3), and LCK (lymphocyte specific protein tyrosine kinase) at the most significant prognostic genes in surgically resected NSCLC. The lung metagene model identified key metagenes such as BRAF, phosphatidylinositol 3′ quinase, TP53, and MYC signaling pathways as predictor of recurrence in early-stage lung adenocarcinoma. A 50-gene signature separated patients with stage I lung adenocarcinoma into low- and high-risk, and predicted survival. Recently, miRNA, a family of small, noncoding functional RNAs, was indicated as a potential prognostic marker. High hsa-mir-155 and low hsa-let-7a-2 expression correlated with poor survival in lung adenocarcinoma. Patients with a high expression of a signature of 5 miRNAs (let-7a, miR-221, miR-137, miR-372, miR-182) had increased relapse rate and shorter survival.
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Dacic, S. (2012). Molecular Prognostic Markers of Lung Cancer. In: Cagle, P., et al. Molecular Pathology of Lung Cancer. Molecular Pathology Library, vol 6. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-3197-8_11
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DOI: https://doi.org/10.1007/978-1-4614-3197-8_11
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