Screening of Leptin-LepR modulators using molecular docking and binding assay

Area of Science:

• Biochemistry
• Molecular Biology
• Pharmacology

Background:

• Leptin is a key hormone regulating energy balance and metabolism.
• Leptin exerts its effects by binding to the leptin receptor (LepR), initiating intracellular signaling pathways like JAK2/ERK, STAT3/STAT5, and IRS/PI3 kinase.
• Dysregulation of the Leptin-LepR complex is implicated in various pathophysiologies.

Purpose of the Study:

• To identify novel small molecules capable of modulating the Leptin-LepR interaction.
• To evaluate the potential of these compounds as therapeutic agents for leptin-related disorders.

Main Methods:

• Utilized molecular docking to screen a chemical library for compounds predicted to interact with the LepR binding domain (LBD).
• Selected 18 high-probability compounds, further refining to 6 based on toxicological and physicochemical profiles.
• Employed ELISA assays to assess the impact of the selected compounds on Leptin-LepR complex formation.

Main Results:

• Identified 18 compounds with high docking scores for the LepR LBD.
• Six selected compounds demonstrated discreet yet significant modulation of Leptin-LepR complex formation in vitro.
• The identified compounds represent potential modulators of leptin signaling.

Conclusions:

• The study successfully identified compounds that can modulate the formation of the Leptin-LepR complex.
• These findings pave the way for developing novel therapeutic strategies targeting leptin signaling pathways.
• Further research into these compounds could lead to treatments for metabolic and other leptin-related diseases.