• Kyle M Walsh, Veryan Codd, Ivan V Smirnov, Terri Rice, Paul A Decker, Helen M Hansen, Thomas Kollmeyer, Matthew L Kosel, Annette M Molinaro, Lucie S McCoy, Paige M Bracci, Belinda S Cabriga, Melike Pekmezci, Shichun Zheng, Joseph L Wiemels, Alexander R Pico, Tarik Tihan, Mitchell S Berger, Susan M Chang, Michael D Prados, Daniel H Lachance, Brian Patrick O'Neill, Hugues Sicotte, Jeanette E Eckel-Passow, ENGAGE Consortium Telomere Group, Pim van der Harst, John K Wiencke, Nilesh J Samani, Robert B Jenkins, and Margaret R Wrensch.
• 1] Division of Neuroepidemiology, Department of Neurological Surgery, University of California, San Francisco, San Francisco, California, USA. [2] Program in Cancer Genetics, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, California, USA.
• Nat. Genet. 2014 Jul 1; 46 (7): 731-5.

AbstractGlioma, the most common central nervous system cancer in adults, has poor prognosis. Here we identify a new SNP associated with glioma risk, rs1920116 (near TERC), that reached genome-wide significance (Pcombined = 8.3 × 10(-9)) in a meta-analysis of genome-wide association studies (GWAS) of high-grade glioma and replication data (1,644 cases and 7,736 controls). This region has previously been associated with mean leukocyte telomere length (LTL). We therefore examined the relationship between LTL and both this new risk locus and other previously established risk loci for glioma using data from a recent GWAS of LTL (n = 37,684 individuals). Alleles associated with glioma risk near TERC and TERT were strongly associated with longer LTL (P = 5.5 × 10(-20) and 4.4 × 10(-19), respectively). In contrast, risk-associated alleles near RTEL1 were inconsistently associated with LTL, suggesting the presence of distinct causal alleles. No other risk loci for glioma were associated with LTL. The identification of risk alleles for glioma near TERC and TERT that also associate with telomere length implicates telomerase in gliomagenesis.

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