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@ARTICLE{Bull:286383,
author = {C. Bull and E. Hazelwood and J. A. Bell and V. Tan and
A.-E. Constantinescu and C. Borges and D. Legge and K.
Burrows and J. R. Huyghe and H. Brenner$^*$ and S.
Castellvi-Bel and A. T. Chan and S.-S. Kweon and L. Le
Marchand and L. Li and I. Cheng and R. K. Pai and J. C.
Figueiredo and N. Murphy and M. J. Gunter and N. J. Timpson
and E. E. Vincent},
title = {{I}dentifying metabolic features of colorectal cancer
liability using {M}endelian randomization.},
journal = {eLife},
volume = {12},
issn = {2050-084X},
address = {Cambridge},
publisher = {eLife Sciences Publications},
reportid = {DKFZ-2023-02786},
pages = {RP87894},
year = {2023},
abstract = {Recognizing the early signs of cancer risk is vital for
informing prevention, early detection, and survival.To
investigate whether changes in circulating metabolites
characterize the early stages of colorectal cancer (CRC)
development, we examined the associations between a genetic
risk score (GRS) associated with CRC liability (72
single-nucleotide polymorphisms) and 231 circulating
metabolites measured by nuclear magnetic resonance
spectroscopy in the Avon Longitudinal Study of Parents and
Children (N = 6221). Linear regression models were applied
to examine the associations between genetic liability to CRC
and circulating metabolites measured in the same individuals
at age 8 y, 16 y, 18 y, and 25 y.The GRS for CRC was
associated with up to $28\%$ of the circulating metabolites
at FDR-P < 0.05 across all time points, particularly with
higher fatty acids and very-low- and low-density lipoprotein
subclass lipids. Two-sample reverse Mendelian randomization
(MR) analyses investigating CRC liability (52,775 cases,
45,940 controls) and metabolites measured in a random subset
of UK Biobank participants (N = 118,466, median age 58 y)
revealed broadly consistent effect estimates with the GRS
analysis. In conventional (forward) MR analyses, genetically
predicted polyunsaturated fatty acid concentrations were
most strongly associated with higher CRC risk.These analyses
suggest that higher genetic liability to CRC can cause early
alterations in systemic metabolism and suggest that fatty
acids may play an important role in CRC development.This
work was supported by the Elizabeth Blackwell Institute for
Health Research, University of Bristol, the Wellcome Trust,
the Medical Research Council, Diabetes UK, the University of
Bristol NIHR Biomedical Research Centre, and Cancer Research
UK. The funders had no role in study design, data collection
and analysis, decision to publish, or preparation of the
manuscript. This work used the computational facilities of
the Advanced Computing Research Centre, University of
Bristol - http://www.bristol.ac.uk/acrc/.},
keywords = {Mendelian randomization (Other) / cancer biology (Other) /
colorectal cancer (Other) / epidemiology (Other) / global
health (Other) / human (Other) / metabolomics (Other) /
obesity (Other)},
cin = {C070 / C120 / HD01},
ddc = {600},
cid = {I:(DE-He78)C070-20160331 / I:(DE-He78)C120-20160331 /
I:(DE-He78)HD01-20160331},
pnm = {313 - Krebsrisikofaktoren und Prävention (POF4-313)},
pid = {G:(DE-HGF)POF4-313},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:38127078},
doi = {10.7554/eLife.87894},
url = {https://inrepo02.dkfz.de/record/286383},
}