Related Experiment Video
Updated: May 2, 2026

Direct Protein Delivery to Mammalian Cells Using Cell-permeable Cys2-His2 Zinc-finger Domains
Published on: March 25, 2015
Recent developments in protein and peptide parenteral delivery approaches
Ashaben Patel1, Kishore Cholkar, Ashim K Mitra
1Division of Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, Kansas City, MO 64108, USA.
Improving protein and peptide therapeutics delivery remains a challenge. This review explores chemical modifications and colloidal systems to enhance stability, bioavailability, and efficacy for better patient outcomes.
Area of Science:
- Biotechnology
- Pharmaceutical Sciences
- Drug Delivery
Background:
- The discovery of insulin spurred advancements in therapeutic protein delivery.
- Parenteral administration remains the primary route for protein and peptide therapeutics.
- Enhancing biological half-life, stability, and efficacy is crucial for these drugs.
Purpose of the Study:
- To review current approaches for improving protein and peptide therapeutic delivery.
- To discuss methods enhancing stability, bioavailability, and bioactivity.
- To highlight recent developments in protein and peptide drug delivery systems.
Main Methods:
- Review of chemical modification strategies (e.g., PEGylation, hyperglycosylation, mannosylation).
- Analysis of various colloidal carriers (e.g., nanoparticles, liposomes, micelles).
- Discussion of in situ thermosensitive gel-based delivery systems.
Main Results:
- Chemical modifications and colloidal systems show promise in improving protein and peptide delivery.
- These approaches address challenges in stability, bioavailability, and in vivo performance.
- Recent advancements include novel gel-based systems for sustained release.
Conclusions:
- Various strategies exist to enhance protein and peptide therapeutic delivery.
- Chemical and colloidal approaches offer significant improvements.
- Further research into these delivery systems can optimize therapeutic efficacy.
Related Concept Videos
Parenteral Drug Delivery Systems: Injectables, Implants, and Infusion Devices
Drug Delivery: Parenteral Route
There are three primary parenteral routes: intravenous (IV), intramuscular (IM), and subcutaneous (SC). The IV route introduces the drug directly into the bloodstream, ensuring immediate action. The IM route...
Routes of Drug Administration: Parenteral
The intravenous route (IV) of drug administration can be further categorized into two types. The bolus injection administers the entire dose rapidly, while an intravenous infusion slowly delivers smaller doses steadily.
The IV route is often...
Site-Targeted Drug Delivery Systems: Polymeric Carriers
Drug Delivery: Overview
Enteral delivery involves administering drugs directly through swallowing, sublingual placement, or buccal application. Orally administered drugs predominantly navigate the...
Modified-Release Drug Delivery Systems: Overview

