Functional characterization of a multi-cancer risk locus on chr5p15.33 reveals regulation of TERT by ZNF148

Jun Fang, Jinping Jia, Matthew Makowski, Mai Xu, Zhaoming Wang, Tongwu Zhang, Jason W. Hoskins, Jiyeon Choi, Younghun Han, Mingfeng Zhang, Janelle Thomas, Michael Kovacs, Irene Collins, Marta Dzyadyk, Abbey Thompson, Maura O'Neill, Sudipto Das, Qi Lan, Roelof Koster, PanScan Consortium & 24 others TRICL Consortium, GenoMEL Consortium, Rachael S. Stolzenberg-Solomon, Peter Kraft, Brian M. Wolpin, Pascal W. T. C. Jansen, Sara H. Olson, Katherine A. McGlynn, Peter A. Kanetsky, Nilanjan Chatterjee, Jennifer H. Barrett, Alison M. Dunning, John C. Taylor, Julia A. Newton-Bishop, D. Timothy Bishop, Thorkell Andresson, Gloria M. Petersen, Christopher I. Amos, Mark M. Iles, Katherine L. Nathanson, Maria Teresa Landi, Michiel Vermeulen, Kevin M. Brown*, Laufey T. Amundadottir

*Corresponding author for this work

Research output: Contribution to journalArticle

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Abstract

Genome wide association studies (GWAS) have mapped multiple independent cancer susceptibility loci to chr5p15.33. Here, we show that fine-mapping of pancreatic and testicular cancer GWAS within one of these loci (Region 2 in CLPTM1L) focuses the signal to nine highly correlated SNPs. Of these, rs36115365-C associated with increased pancreatic and testicular but decreased lung cancer and melanoma risk, and exhibited preferred protein-binding and enhanced regulatory activity. Transcriptional gene silencing of this regulatory element repressed TERT expression in an allele-specific manner. Proteomic analysis identifies allele-preferred binding of Zinc finger protein 148 (ZNF148) to rs36115365- C, further supported by binding of purified recombinant ZNF148. Knockdown of ZNF148 results in reduced TERT expression, telomerase activity and telomere length. Our results indicate that the association with chr5p15.33-Region 2 may be explained by rs36115365, a variant influencing TERT expression via ZNF148 in a manner consistent with elevated TERT in carriers of the C allele.

Original languageEnglish
Article number15034
Pages (from-to)1-15
Number of pages15
JournalNature Communications
Volume8
DOIs
Publication statusPublished - 27 Apr 2017

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    Fang, J., Jia, J., Makowski, M., Xu, M., Wang, Z., Zhang, T., ... Amundadottir, L. T. (2017). Functional characterization of a multi-cancer risk locus on chr5p15.33 reveals regulation of TERT by ZNF148. Nature Communications, 8, 1-15. [15034]. https://doi.org/10.1038/ncomms15034