Back
Science

Study identifies umbilical cord blood protein biomarkers linked to future Type 1 diabetes risk

Generated on: Last updated: 1 sources
View source

Umbilical Cord Blood Proteins May Predict Future Type 1 Diabetes Risk

A new study suggests that proteins present at birth could offer clues about a child's future likelihood of developing Type 1 diabetes. The research, published in Nature Communications, analyzed umbilical cord blood from a general population cohort in Sweden.

Levels of several proteins in umbilical cord blood were found to predict the likelihood of a child developing Type 1 diabetes in the future.

Key Study Details

  • The research analyzed umbilical cord blood samples from the All Babies in Southeast Sweden cohort.
  • Researchers used machine learning to identify protein biomarkers associated with whether children later developed Type 1 diabetes.
  • Critically, the study focused on a general population cohort, not just children known to be at high genetic risk for the disease.

The Biomarkers Identified

The analysis pinpointed two specific proteins as the strongest predictors:

  • IDS: An enzyme involved in breaking down long sugar molecules in tissues.
  • HLA-DRA: A protein involved in activating the immune system.

The predictive ability of these proteins was not heavily reliant on genetic information; including HLA genetic variants in the analysis only marginally improved accuracy.

Interestingly, some proteins were associated with the absence of future Type 1 diabetes. These included tissue inhibitor of metalloproteinases-3 (TIMP3) and adenosine deaminase (ADA), which are known to regulate inflammation and support insulin production.

It is important to note that the biomarkers identified reflect disease risk, not a certain outcome.

Broader Research Context

The findings contribute to several evolving ideas in diabetes research:

  • They suggest biological pathways associated with Type 1 diabetes may begin as early as pregnancy.
  • They add to a growing body of research indicating that stressed pancreatic beta cells may play an active role in the onset of Type 1 diabetes, potentially before immune system involvement.
  • Current screening typically relies on genetic testing and autoantibody detection, which may occur after significant biological changes have already taken place.

Implications and Future Directions

The findings suggest umbilical cord blood could be a resource for more proactive assessment of a child's risk for Type 1 diabetes. Some of the observed biomarkers could also be linked to environmental exposures, such as PFAS chemicals.

However, the researchers are clear that clinical application is a long way off. Further study is needed in broader populations, on additional biomarkers, and to understand the underlying biology.

The research team is also studying umbilical cord blood markers in relation to other conditions, including childhood obesity, depression, autism, and inflammatory bowel disease.