Nature-inspired macrocyclic peptides: Discovery and molecular engineering for drug development

Area of Science:

• Medicinal Chemistry
• Drug Discovery
• Biotechnology

Background:

• Natural cyclic peptides possess significant bioactivity, bridging small molecules and biologics.
• Their macrocyclic structure provides target specificity and metabolic stability, enabling engagement with challenging protein surfaces.
• Cyclosporin A exemplifies their conformational adaptability (chameleonicity).

Purpose of the Study:

• To highlight the paradigm shift in macrocycle research from natural product mining to de novo design.
• To showcase the integration of natural principles with modern technologies for next-generation drug development.

Main Methods:

• Leveraging natural principles like conformational constraint and amide-masking.
• Employing cutting-edge technologies such as mRNA display (e.g., RaPID) and artificial intelligence.
• Rational engineering of macrocyclic structures.

Main Results:

• The field is moving towards de novo design of macrocycles.
• Advanced technologies enable precise engineering of these molecules.
• Next-generation macrocycles are emerging at the forefront of drug development.

Conclusions:

• Nature's macrocyclic architecture serves as a blueprint for rational drug design.
• The combination of natural insights and novel technologies is driving innovation in macrocycle therapeutics.
• This approach positions macrocycles as key players in future drug discovery efforts.