Developments in bile salt based therapies: A critical overview

Area of Science:

• Biochemistry
• Endocrinology
• Metabolic Diseases

Background:

• Bile acids are amphipathic molecules crucial for fat absorption.
• They also function as signaling molecules activating nuclear and membrane receptors.
• Key receptors include Farnesoid X Receptor (FXR) and G protein-coupled bile acid receptor-1 (TGR5).

Purpose of the Study:

• To summarize recent findings on bile acid signaling.
• To discuss the therapeutic potential of targeting bile acid receptors and transport.
• To highlight limitations of current therapeutic strategies.

Main Methods:

• Literature review of bile acid signaling pathways.
• Analysis of studies on FXR and TGR5 activation.
• Discussion of therapeutic implications for cholestasis, NAFLD, and diabetes.

Main Results:

• Bile acid signaling regulates bile acid metabolism, glucose, lipid, and energy homeostasis.
• Activation of FXR and TGR5 confers reduced hepatic bile salt load, improved insulin sensitivity, and anti-inflammatory effects.
• These effects suggest therapeutic benefits for various metabolic and liver conditions.

Conclusions:

• Bile acid signaling pathways present promising therapeutic targets.
• FXR and TGR5 agonists, along with bile acid transport modulators, are potential treatments.
• Further research is needed to overcome limitations and optimize these therapeutic approaches.