Chromosome 1p loss: a favorable prognostic factor in low-grade gliomas.

Kujas, Michèle; Lejeune, Julie; Benouaich-Amiel, Alexandra; Crinière, Emmanuelle; Laigle-Donadey, Florence; Marie, Yannick; Mokhtari, Karima; Polivka, Marc et al. · Ann Neurol · 2005

retrospective_cohort · Level III

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Abstract

Search for loss of heterozygosity on chromosomes 1p, 9p, 10q, and 19q, epidermal growth factor receptor (EGFR) gene amplification, and p53 expression was performed in a series of 131 low-grade gliomas. The profile of molecular changes, clinical findings, and histology were subsequently correlated with the course of the disease, mainly progression-free survival. When these parameters were considered as candidate variables in a multivariate analysis, only loss of heterozygosity on chromosome 1p was associated with increased progression-free survival (hazard ratio, 0.521), indicating a major favorable prognostic role of this genetic alteration in low-grade gliomas.

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