Prodrug
Prodrug — A biologically inactive compound that is metabolized into an active form after administration, a strategy explored for improving oral peptide delivery.
What Is a Prodrug?
A prodrug is a biologically inactive compound converted to the active peptide form through enzymatic or chemical processes after administration. Prodrug strategies improve oral absorption, extend half-life, or achieve tissue-specific activation.
Peptide Prodrug Strategies
- Ester prodrugs: Masking carboxyl or hydroxyl groups as esters, cleaved by esterases after absorption
- Lipidation: Fatty acid conjugation (semaglutide's C18 chain) enables albumin binding for half-life extension
- PEG-masked: Releasable PEG conjugates that slowly liberate the active peptide
- Enzyme-activated: Protease-cleavable linkers for tumor-specific activation
Frequently Asked Questions
What is Prodrug?
A biologically inactive compound that is metabolized into an active form after administration, a strategy explored for improving oral peptide delivery.
Why is Prodrug important in peptide research?
Prodrug is a fundamental concept in pharmacology as it relates to peptide science. It directly influences experimental design, compound characterization, and the reliability of research outcomes across biochemistry and molecular biology disciplines.