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. 2017 Jan;152(1):68-74.e2.
doi: 10.1053/j.gastro.2016.09.060. Epub 2016 Nov 15.

Hypermutation In Pancreatic Cancer

Jeremy L Humphris  1 Ann-Marie Patch  2 Katia Nones  2 Peter J Bailey  3 Amber L Johns  1 Skye McKay  1 David K Chang  4 David K Miller  5 Marina Pajic  6 Karin S Kassahn  7 Michael C J Quinn  2 Timothy J C Bruxner  8 Angelika N Christ  8 Ivon Harliwong  8 Senel Idrisoglu  8 Suzanne Manning  8 Craig Nourse  9 Ehsan Nourbakhsh  8 Andrew Stone  1 Peter J Wilson  8 Matthew Anderson  8 J Lynn Fink  8 Oliver Holmes  2 Stephen Kazakoff  2 Conrad Leonard  2 Felicity Newell  2 Nick Waddell  8 Scott Wood  2 Ronald S Mead  10 Qinying Xu  2 Jianmin Wu  1 Mark Pinese  1 Mark J Cowley  6 Marc D Jones  11 Adnan M Nagrial  1 Venessa T Chin  1 Lorraine A Chantrill  12 Amanda Mawson  1 Angela Chou  13 Christopher J Scarlett  14 Andreia V Pinho  1 Ilse Rooman  1 Marc Giry-Laterriere  1 Jaswinder S Samra  15 James G Kench  16 Neil D Merrett  17 Christopher W Toon  1 Krishna Epari  18 Nam Q Nguyen  19 Andrew Barbour  20 Nikolajs Zeps  21 Nigel B Jamieson  22 Colin J McKay  23 C Ross Carter  23 Euan J Dickson  23 Janet S Graham  24 Fraser Duthie  25 Karin Oien  25 Jane Hair  26 Jennifer P Morton  27 Owen J Sansom  27 Robert Grützmann  28 Ralph H Hruban  29 Anirban Maitra  29 Christine A Iacobuzio-Donahue  29 Richard D Schulick  30 Christopher L Wolfgang  30 Richard A Morgan  29 Rita T Lawlor  31 Borislav Rusev  31 Vincenzo Corbo  31 Roberto Salvia  31 Ivana Cataldo  31 Giampaolo Tortora  32 Margaret A Tempero  33 Australian Pancreatic Cancer Genome Initiative  34 Oliver Hofmann  35 James R Eshleman  29 Christian Pilarsky  36 Aldo Scarpa  31 Elizabeth A Musgrove  37 Anthony J Gill  38 John V Pearson  2 Sean M Grimmond  39 Nicola Waddell  40 Andrew V Biankin  41
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Free article

Hypermutation In Pancreatic Cancer

Jeremy L Humphris et al. Gastroenterology. 2017 Jan.
Free article

Abstract

Pancreatic cancer is molecularly diverse, with few effective therapies. Increased mutation burden and defective DNA repair are associated with response to immune checkpoint inhibitors in several other cancer types. We interrogated 385 pancreatic cancer genomes to define hypermutation and its causes. Mutational signatures inferring defects in DNA repair were enriched in those with the highest mutation burdens. Mismatch repair deficiency was identified in 1% of tumors harboring different mechanisms of somatic inactivation of MLH1 and MSH2. Defining mutation load in individual pancreatic cancers and the optimal assay for patient selection may inform clinical trial design for immunotherapy in pancreatic cancer.

Keywords: Cancer Genetics; Pancreatic Adenocarcinoma; Sequencing; Somatic Rearrangement.

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