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Accelerated Type 1 Diabetes Induction in Mice by Adoptive Transfer of Diabetogenic CD4+ T Cells
Published on: May 6, 2013
Systemic Inflammation and Peripheral T Cell Responses Associate With Hepatic Energy Metabolism in Recent-Onset Type 1
Jacqueline M Ratter-Rieck1,2, Alexandra Zepina1,2, Maximilian Huttasch1,2
1Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany.
Summary
Type 1 diabetes is linked to lower liver energy levels. This study finds that specific inflammatory markers and T cell responses correlate with altered hepatic energy metabolism, even in early disease stages.
Area of Science:
- Metabolic disease research
- Immunology
- Hepatology
Background:
- Type 1 diabetes is associated with reduced hepatic adenosine-triphosphate (ATP) and inorganic phosphate (Pi).
- The role of inflammatory pathways in these metabolic alterations is not well understood.
Purpose of the Study:
- To investigate the association between inflammatory pathways and hepatic energy metabolism in early-stage type 1 diabetes.
- To explore the relationship between specific inflammatory proteins, T cell responses, and liver metabolic markers.
Main Methods:
- Utilized 1H/31P magnetic resonance spectroscopy to assess hepatic lipid content, ATP, and Pi concentrations in participants of the German Diabetes Study.
- Measured serum inflammatory proteins and T cell responses (CD4+ and CD8+) using a multiplex assay.
- Performed statistical analyses adjusted for multiple testing with false discovery rate (FDR)-correction.
Main Results:
- Hepatic ATP concentrations positively correlated with circulating TNFSF14 and MMP10.
- Hepatic Pi showed positive associations with MMP10, and CD4+/CD8+ T cell responses (CCL3, CCL4, TNFSF14).
- Hepatic lipid content negatively correlated with CD8+ T cell release of IL-2, IL-4, IL-13, and TNF.
Conclusions:
- Hepatic energy metabolism in early type 1 diabetes is significantly associated with a distinct inflammatory profile and T cell activity.
- Pro-inflammatory mechanisms may play a role in regulating hepatic metabolism, independent of steatotic liver disease.
- Findings suggest a complex interplay between inflammation and liver metabolism in type 1 diabetes.
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