Targeting protein-protein interactions for drug discovery

Area of Science:

• Biochemistry
• Pharmacology
• Drug Discovery

Background:

• Protein-protein interactions (PPIs) are crucial for cellular functions and represent promising drug targets.
• Small molecule drugs have historically faced challenges in targeting PPIs due to their unique biophysical properties.
• The development of drugs targeting PPIs is complex and carries significant risks.

Purpose of the Study:

• To review the challenges associated with targeting protein-protein interactions for drug discovery.
• To highlight emerging strategies and tools that address these challenges.
• To provide insights for improving future drug development success rates for PPI targets.

Main Methods:

• Literature review of successful and unsuccessful drug development case studies targeting PPIs.
• Analysis of the biophysical characteristics of protein-protein interaction surfaces.
• Identification and synthesis of common themes and lessons learned from the field.

Main Results:

• Many protein-protein interaction surfaces are not amenable to small molecule binding.
• Unique hurdles exist in the drug development process for PPI targets, increasing risk.
• Despite challenges, successful drug development stories for PPIs are emerging.

Conclusions:

• Success stories in targeting protein-protein interactions are providing valuable strategies and tools.
• These lessons learned are expected to enhance the success rate for future drug development efforts targeting PPIs.
• Overcoming inherent difficulties is key to realizing the therapeutic potential of targeting protein-protein interactions.