Old biliverdin reductase: links to insulin resistance and may be a novel therapeutic target
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Updated: Jul 6, 2026

Precise Visualization of Insulin Receptors A and B in Murine Brain with an RNA In Situ Hybridization Assay
Published on: July 15, 2025
Bin Wu1, Xiaoyan Liu, Jinfang Shen
1Division of Clinical Pharmacy, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University, China.
Abstract:
Insulin resistance has been assigned a pivotal role in the pathological progression associated with type 2 diabetes and other chronic metabolic diseases. However, the molecular mechanism involved in this progression is still incompletely understood, and there are still no effective approaches to scavenge it. Many biological molecules, such as ROS, IRS-1, PI3K, have been identified involving in the causes of insulin resistance. Restoring these molecules could ameliorate the phenomenon of insulin resistance. BVR was known for a long time solely as an enzyme reducing biliverdin to bilirubin in the heme metabolic pathway. Presently, accumulative research data showed that BVR was a strong antioxidant enzyme, which could scavenge the excess ROS, and the characteristics of kinase activity and binding with p85 could modulate the biological function of IRS-1 and PI3K. We hypothesize that BVR has a significant role in the progression of insulin resistance, and it will be a promising therapeutic target for treating insulin resistance.
Insights
BVR, an antioxidant enzyme, shows potential in treating insulin resistance by scavenging reactive oxygen species (ROS) and modulating key molecules like IRS-1 and PI3K, offering a new therapeutic target for type 2 diabetes.
Area of Science:
- Biochemistry
- Metabolic Diseases
- Enzymology
Background:
- Insulin resistance is central to type 2 diabetes and metabolic diseases, but its molecular mechanisms remain unclear.
- Reactive oxygen species (ROS), IRS-1, and PI3K are implicated in insulin resistance development.
- Current treatments for insulin resistance are limited.
Purpose of the Study:
- To investigate the role of biliverdin reductase (BVR) in the progression of insulin resistance.
- To explore BVR's potential as a therapeutic target for insulin resistance.
Main Methods:
- Review of existing research on BVR's enzymatic and non-enzymatic functions.
- Analysis of BVR's interaction with ROS, IRS-1, and PI3K pathways.
Main Results:
- BVR acts as a potent antioxidant, neutralizing excess ROS.
- BVR possesses kinase activity and binds to p85, influencing IRS-1 and PI3K functions.
- These actions suggest BVR can ameliorate insulin resistance.
Conclusions:
- BVR plays a significant role in insulin resistance progression.
- BVR represents a promising therapeutic target for managing insulin resistance and related metabolic disorders.
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