title: Immunohistochemistry-based prognostic biomarkers in NSCLC: novel findings on the road to clinical use?
abstract: Prognostication of non-small cell lung cancer is principally based on stage, age and performance status. This review provides an overview of 342 potential prognostic biomarkers in non-small cell lung cancer described between January 2008 and June 2013, evaluating the association between immunohistochemical protein expression and survival endpoint. Numerous studies proposed prognostic biomarkers, but many were only evaluated in a single patient cohort, and a large number of biomarkers revealed inconclusive findings when analyzed in more than one study. Only 26 proteins first described after 2008 (ALDH1A1, ANXA1, BCAR1, CLDN1, EIF4E, EZH2, FOLR1, FOXM1, IL7R, IL12RB2, KIAA1524, CRMP1, LOX, MCM7, MTA1, MTDH, NCOA3, NDRG2, NEDD9, NES, PBK, PPM1D, SIRT1, SLC7A5, SQSTM1 and WNT1) demonstrated a consistent prognostic association in two or more independent patient cohorts, thus qualifying as promising candidates for diagnostic use. Raised quality standards for study design and antibody validation, and integration of preclinical findings with clinical needs are clearly warranted.
authors.affiliation: Department of Immunology Genetics and Pathology, Science for Life Laboratory, Uppsala University, 751 85 Uppsala, Sweden.
authors.forename: Cecilia
authors.initials: C
authors.lastname: Lindskog
authors.forename: Karolina
authors.initials: K
authors.lastname: Edlund
authors.forename: Johanna Sofia Margareta
authors.initials: JS
authors.lastname: Mattsson
authors.forename: Patrick
authors.initials: P
authors.lastname: Micke
mesh_terms: D014408:Biomarkers, Tumor; D002289:Carcinoma, Non-Small-Cell Lung / Q000175:diagnosis* / Q000401:mortality; D006801:Humans; D007150:Immunohistochemistry / Q000379:methods* / Q000592:standards; D008175:Lung Neoplasms / Q000175:diagnosis*; D011379:Prognosis; D015203:Reproducibility of Results
chemical_list: D014408:Biomarkers, Tumor
keywords: biomarker; immunohistochemistry; lung cancer; patients; prognosis; protein