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Integrated transcriptomic and Mendelian randomization analysis identifies novel biomarkers for type 2
Lindong Zhang1,2,3, Lingling Qin4, Lili Wu1
1School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, China.
Naunyn-Schmiedeberg'S Archives of Pharmacology
|July 10, 2026
Summary
This study identifies three genes (PPIP5K2, RBM23, IGF2BP2) linked to type 2 diabetes and cardiac dysfunction. The compound cynaropicrin shows promise in improving heart function and metabolic control in diabetic rats.
Area of Science:
- Genomics
- Cardiovascular Medicine
- Metabolic Disorders
Background:
- Diabetic cardiac dysfunction is a significant complication of type 2 diabetes mellitus (T2DM).
- Transcriptomic signatures offer insights into disease mechanisms but require robust validation.
- Identifying reliable biomarkers and therapeutic interventions is crucial for managing T2DM-related heart conditions.
Purpose of the Study:
- To identify T2DM-associated biomarkers within transcriptomic signatures of diabetic cardiac dysfunction.
- To evaluate the potential of cynaropicrin as a cardiometabolic intervention for T2DM.
Main Methods:
- Integrated transcriptomic analysis (differential expression, WGCNA) of cardiac dysfunction datasets.
- Two-sample Mendelian randomization to assess genetic links between gene expression and T2DM risk.
- In vivo study using streptozotocin-induced diabetic rats treated with cynaropicrin.
- External validation using ROC analysis and molecular docking for compound screening.
Main Results:
- Thirty candidate genes involved in proteostasis and metabolism were identified.
- PPIP5K2, RBM23, and IGF2BP2 were prioritized as T2DM-associated, genetically supported biomarkers.
- Cynaropicrin treatment improved cardiac function, reduced cardiac fibrosis, and enhanced glycemic control in diabetic rats.
- Cynaropicrin suppressed pro-fibrotic signaling pathways.
Conclusions:
- PPIP5K2, RBM23, and IGF2BP2 are potential diagnostic biomarkers for diabetic cardiac dysfunction.
- Cynaropicrin exhibits cardioprotective and metabolic benefits in a preclinical model of T2DM.
- Further research is needed to validate cynaropicrin's molecular targets and mechanisms.
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