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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
  • , 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, , P Peeters

Research output: Contribution to journal › Article › Academic › peer-review

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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
JournalNature Communications [E]
Volume8
DOIs
Publication statusPublished - 27 Apr 2017

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