Identification of Potential Plant-Derived Pancreatic Beta-Cell-Directed Agents Using New Custom-Designed Screening...

Area of Science:

• Pharmacology
• Natural Products Chemistry
• Endocrinology

Background:

• Folk medicines are explored for type 2 diabetes mellitus (T2DM) treatment.
• Existing research on plant extracts often lacks standardized screening for beta-cell directed effects.
• There is a need for defined criteria to evaluate plant-based remedies for T2DM.

Purpose of the Study:

• To establish screening criteria for identifying plant extracts as potential beta-cell directed agents for T2DM.
• To validate a screening method using a Gymnema sylvestre extract.

Main Methods:

• Developed a "screening portfolio" with specific criteria for beta-cell directed plant extracts.
• Validated the screening method using Gymnema sylvestre (GS) extract (OSA®).
• Evaluated the extract's efficacy in vitro and in vivo, including effects on insulin release, beta-cell mass, and normoglycemia.

Main Results:

• Identified and validated six criteria for screening potential antidiabetic plant extracts.
• The Gymnema sylvestre extract (OSA®) met most criteria, showing effective insulin release at non-toxic concentrations.
• The extract demonstrated ability to maintain beta-cell insulin content, protect against apoptosis, and achieve normoglycemia in vivo.

Conclusions:

• A screening portfolio is crucial for identifying effective plant-derived antidiabetic agents.
• The proposed screening method should be adopted for future research in discovering new beta-cell directed therapies for T2DM.
• Gymnema sylvestre extract shows significant potential as a beta-cell directed therapy for T2DM.