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Title: Prediction of the development of islet autoantibodies through integration of environmental, genetic, and metabolic markers

Abstract

The Environmental Determinants of the Diabetes in the Young (TEDDY) study has prospectively followed, from birth, children at increased genetic risk of type 1 diabetes. We evaluated the potential of machine learning to identify new biomarkers that predict imminent (within 6 months) development of persistent islet autoantibodies to insulin, GAD or IA-2 in TEDDY participants through integration of time-invariant risk factors with time-varying metabolomics. The predictive modeling was initiated with over 220 potential biomarkers; through ensemble-based feature evaluation, the optimal model included 42 biomarkers, returning a cross-validated receiver operating characteristic area under the curve of 0.74. The model identified a principal set of 20 time-invariant markers, including 16 single nucleotide polymorphisms and two HLA-DR genotypes, gestational age, and exposure to a prebiotic formula. Integration of the metabolome identified 22 high-priority metabolites and lipids, including adipic acid and ceramide d42:0, that predicted development of islet autoantibodies, dependent upon the time horizon. The majority (86%) of metabolites that predicted development of islet autoantibodies belonged to 3 pathways: lipid oxidation, phospholipase A2 signaling, and pentose phosphate pathway. TEDDY data suggest that these metabolic processes may play a role in triggering islet autoimmunity.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [2];  [2]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [3]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [3]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Univ. of Colorado, Aurora, CO (United States). Anschutz Medical Campus
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. Univ. of Colorado, Aurora, CO (United States). Anschutz Medical Campus
  4. Univ. of Virginia, Charlottesville, VA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE; National Institutes of Health (NIH)
OSTI Identifier:
1756070
Report Number(s):
PNNL-SA-146734
Journal ID: ISSN 1753-0407
Grant/Contract Number:  
AC05-76RL01830; U01 DK63829; U01 DK63861; U01 DK63821; U01 DK63865; U01 DK63863; U01 DK63836; U01 DK63790; UC4 DK63829; UC4 DK63861; UC4 DK63821; UC4 DK63865; UC4 DK63863; UC4 DK63836; UC4 DK95300; UC4 DK100238; HHSN267200700014C; UL1 TR000064; UL1 TR001082
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Diabetes (Online)
Additional Journal Information:
Journal Name: Journal of Diabetes (Online); Journal Volume: 13; Journal Issue: 2; Journal ID: ISSN 1753-0407
Publisher:
Wiley and Ruijin Hospital, Shanghai Jiaotong University School of Medicine
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; autoimmunity; genetics; machine learning; metabolomics

Citation Formats

Webb‐Robertson, Bobbie‐Jo M., Bramer, Lisa M., Stanfill, Bryan A., Reehl, Sarah M., Nakayasu, Ernesto S., Metz, Thomas O., Frohnert, Brigitte I., Norris, Jill M., Johnson, Randi K., Rich, Stephen S., and Rewers, Marian J. Prediction of the development of islet autoantibodies through integration of environmental, genetic, and metabolic markers. United States: N. p., 2020. Web. doi:10.1111/1753-0407.13093.
Webb‐Robertson, Bobbie‐Jo M., Bramer, Lisa M., Stanfill, Bryan A., Reehl, Sarah M., Nakayasu, Ernesto S., Metz, Thomas O., Frohnert, Brigitte I., Norris, Jill M., Johnson, Randi K., Rich, Stephen S., & Rewers, Marian J. Prediction of the development of islet autoantibodies through integration of environmental, genetic, and metabolic markers. United States. https://doi.org/10.1111/1753-0407.13093
Webb‐Robertson, Bobbie‐Jo M., Bramer, Lisa M., Stanfill, Bryan A., Reehl, Sarah M., Nakayasu, Ernesto S., Metz, Thomas O., Frohnert, Brigitte I., Norris, Jill M., Johnson, Randi K., Rich, Stephen S., and Rewers, Marian J. Wed . "Prediction of the development of islet autoantibodies through integration of environmental, genetic, and metabolic markers". United States. https://doi.org/10.1111/1753-0407.13093. https://www.osti.gov/servlets/purl/1756070.
@article{osti_1756070,
title = {Prediction of the development of islet autoantibodies through integration of environmental, genetic, and metabolic markers},
author = {Webb‐Robertson, Bobbie‐Jo M. and Bramer, Lisa M. and Stanfill, Bryan A. and Reehl, Sarah M. and Nakayasu, Ernesto S. and Metz, Thomas O. and Frohnert, Brigitte I. and Norris, Jill M. and Johnson, Randi K. and Rich, Stephen S. and Rewers, Marian J.},
abstractNote = {The Environmental Determinants of the Diabetes in the Young (TEDDY) study has prospectively followed, from birth, children at increased genetic risk of type 1 diabetes. We evaluated the potential of machine learning to identify new biomarkers that predict imminent (within 6 months) development of persistent islet autoantibodies to insulin, GAD or IA-2 in TEDDY participants through integration of time-invariant risk factors with time-varying metabolomics. The predictive modeling was initiated with over 220 potential biomarkers; through ensemble-based feature evaluation, the optimal model included 42 biomarkers, returning a cross-validated receiver operating characteristic area under the curve of 0.74. The model identified a principal set of 20 time-invariant markers, including 16 single nucleotide polymorphisms and two HLA-DR genotypes, gestational age, and exposure to a prebiotic formula. Integration of the metabolome identified 22 high-priority metabolites and lipids, including adipic acid and ceramide d42:0, that predicted development of islet autoantibodies, dependent upon the time horizon. The majority (86%) of metabolites that predicted development of islet autoantibodies belonged to 3 pathways: lipid oxidation, phospholipase A2 signaling, and pentose phosphate pathway. TEDDY data suggest that these metabolic processes may play a role in triggering islet autoimmunity.},
doi = {10.1111/1753-0407.13093},
journal = {Journal of Diabetes (Online)},
number = 2,
volume = 13,
place = {United States},
year = {Wed Jul 22 00:00:00 EDT 2020},
month = {Wed Jul 22 00:00:00 EDT 2020}
}

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