Cell Reports (Jul 2020)

Heterogeneous Effects of Calorie Content and Nutritional Components Underlie Dietary Influence on Pancreatic Cancer Susceptibility

  • James Dooley,
  • Vasiliki Lagou,
  • Jermaine Goveia,
  • Anna Ulrich,
  • Katerina Rohlenova,
  • Nathalie Heirman,
  • Tobias Karakach,
  • Yulia Lampi,
  • Shawez Khan,
  • Jun Wang,
  • Tom Dresselaers,
  • Uwe Himmelreich,
  • Marc J. Gunter,
  • Inga Prokopenko,
  • Peter Carmeliet,
  • Adrian Liston

Journal volume & issue
Vol. 32, no. 2
p. 107880

Abstract

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Summary: Pancreatic cancer is a rare but fatal form of cancer, the fourth highest in absolute mortality. Known risk factors include obesity, diet, and type 2 diabetes; however, the low incidence rate and interconnection of these factors confound the isolation of individual effects. Here, we use epidemiological analysis of prospective human cohorts and parallel tracking of pancreatic cancer in mice to dissect the effects of obesity, diet, and diabetes on pancreatic cancer. Through longitudinal monitoring and multi-omics analysis in mice, we found distinct effects of protein, sugar, and fat dietary components, with dietary sugars increasing Mad2l1 expression and tumor proliferation. Using epidemiological approaches in humans, we find that dietary sugars give a MAD2L1 genotype-dependent increased susceptibility to pancreatic cancer. The translation of these results to a clinical setting could aid in the identification of the at-risk population for screening and potentially harness dietary modification as a therapeutic measure.

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