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Detecting chromatin state alterations in PBMCs associated with Type 2 Diabetes Mellitus
Maryam Moazeni Afarani1, Rajshikhar Gupta1,2,3, Caroline Uhler4,3
1Laboratory of Multiscale Bioimaging, Paul Scherrer Institut, Villigen, Aargau, Switzerland.
A new chromatin imaging assay offers a cost-effective way to monitor Type 2 Diabetes Mellitus (T2DM) by analyzing immune cell changes. This method identifies distinct peripheral blood mononuclear cell (PBMC) patterns linked to T2DM progression.
Area of Science:
- Immunology
- Cell Biology
- Biomarker Discovery
Background:
- Type 2 Diabetes Mellitus (T2DM) is characterized by immune dysfunction not targeted by current treatments.
- Assessing functional changes in peripheral blood mononuclear cells (PBMCs) is typically too expensive and time-consuming for regular clinical use.
Purpose of the Study:
- To develop and validate a cost-effective and scalable chromatin imaging assay for monitoring T2DM.
- To identify PBMC alterations associated with T2DM progression using machine learning on cellular images.
Main Methods:
- Studied 57 individuals across healthy, prediabetic, and T2DM stages.
- Employed a microfluidic assay for chromatin imaging of live PBMCs.
- Utilized representation learning on chromatin images to identify distinct PBMC subpopulations.
Main Results:
- Identified distinct PBMC clusters associated with different T2DM stages.
- Found specific PBMC subset levels predictive of T2DM status.
- Observed altered nuclear/chromatin mechanics, decreased Lamin A/C, and increased cellular activation in diabetic PBMCs.
Conclusions:
- Developed a cost-effective and scalable chromatin imaging assay for routine T2DM monitoring.
- Demonstrated the utility of PBMC chromatin biomarkers for assessing T2DM progression.
- Highlighted potential for this assay in personalized diabetes management.
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