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Lipidation & Stapled Peptides: Enhancing Stability and Pharmacokinetics
R P Rajesh1, Masilamani Selvam2, Srinivasan Palaniselvam1
1Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, 603103, Tamil Nadu, India.
Current Protein & Peptide Science
|March 21, 2026
Summary
Dual-modified peptides combine lipidation and stapling to overcome stability and delivery challenges, enhancing therapeutic potential for diseases like cancer and infections.
Area of Science:
- Medicinal Chemistry
- Drug Delivery
- Biotechnology
Background:
- Peptide therapeutics offer high specificity and low toxicity but suffer from poor stability, bioavailability, and cell permeability.
- These limitations hinder their clinical effectiveness, necessitating innovative engineering strategies.
Purpose of the Study:
- To review advancements in peptide engineering, specifically lipidation and peptide stapling, for enhancing therapeutic efficacy.
- To explore how these modifications address pharmacokinetic and pharmacodynamic challenges.
Main Methods:
- Lipidation: Covalent attachment of fatty acids/hydrophobic components to improve pharmacokinetics and membrane interaction.
- Peptide Stapling: Use of linkers to stabilize alpha-helical structures, enhancing proteolysis resistance and intracellular transport.
Main Results:
- Combined lipidation and stapling yield dual-modified peptides with significantly improved stability, bioavailability, and therapeutic effects.
- Case studies include antivirals (SARS-CoV-2), antimicrobials (SLP-51), and oncogenic protein-protein interaction degraders.
Conclusions:
- Lipidation and stapling represent a revolutionary approach to peptide drug development, applicable to infectious diseases, cancer, and metabolic disorders.
- Ongoing challenges include immunogenicity, manufacturing scalability, and non-invasive delivery, with AI-driven design offering future solutions.
Keywords:
Peptide therapeuticsintracellular deliverylipidationpharmacokineticsproteolytic stabilitystapled peptidesMore Related Videos
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