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Related Concept Videos

Site-Targeted Drug Delivery Systems: Polymeric Carriers01:24

Site-Targeted Drug Delivery Systems: Polymeric Carriers

Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention01:05

Bioavailability Enhancement: Drug Stability Enhancement and GI Retention

Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
Bioavailability Enhancement: Drug Permeability Enhancement01:27

Bioavailability Enhancement: Drug Permeability Enhancement

After oral administration, poor permeability often limits the rate at which drugs are absorbed through the intestinal epithelium. Enhancing drug permeability is crucial for effective therapy, and several strategies have been developed to overcome this challenge.One effective strategy involves the use of lipid-based formulations. These formulations enhance dissolution and solubility, targeting physiological mechanisms to increase drug absorption. This includes stimulating bile salt secretion,...
Glucagon-like Receptor Agonists01:24

Glucagon-like Receptor Agonists

Incretins include glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), which stimulate insulin secretion post-meals. In type 2 diabetes, GIP's efficacy is reduced, making GLP-1 a viable drug target. GIP originates from preproGIP.
GLP-1, when administered in high doses intravenously, triggers insulin secretion, inhibits glucagon release, slows gastric emptying, reduces food intake, and restores normal insulin secretion. However, its rapid inactivation by the...
Principles of Drug Action01:24

Principles of Drug Action

Drugs are chemical substances that modify biological responses by interacting with macromolecular targets such as receptors, ion channels, transporters, and enzymes. Pharmacodynamics describes the course of action of drugs leading to the physiological effect at a specific site in the body.
Drugs can be agonists or antagonists. Like the endogenous ligands, agonists always bind and activate the target to produce a cellular response. Agonist binding induces a conformational change which in turn...
Transducer Mechanism: Enzyme-Linked Receptors01:27

Transducer Mechanism: Enzyme-Linked Receptors

Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:

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Related Experiment Video

Updated: May 20, 2026

Development of a Backbone Cyclic Peptide Library as Potential Antiparasitic Therapeutics Using Microwave Irradiation
08:48

Development of a Backbone Cyclic Peptide Library as Potential Antiparasitic Therapeutics Using Microwave Irradiation

Published on: January 26, 2016

Peptides as therapeutics with enhanced bioactivity.

D Goodwin1, P Simerska, I Toth

  • 1School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia 4072, Queensland, Australia.

Current Medicinal Chemistry
|July 27, 2012
PubMed
Summary

Advancements in peptide production and modification techniques are driving the development of peptide therapeutics and vaccines. These innovations enhance peptide properties for improved drug efficacy and delivery.

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Last Updated: May 20, 2026

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Area of Science:

  • Biotechnology
  • Pharmaceutical Sciences
  • Medicinal Chemistry

Background:

  • Peptides are increasingly recognized for their therapeutic potential.
  • Existing challenges in peptide drug development include stability, transport, and immunogenicity.
  • Recent technological progress has spurred renewed interest in peptide-based medicines.

Purpose of the Study:

  • To review established and experimental methods for manufacturing peptide drugs.
  • To highlight techniques for enhancing the drug-like properties of peptides.
  • To discuss the application of peptides in vaccine development.

Main Methods:

  • Literature review of peptide manufacturing techniques.
  • Analysis of methods for improving peptide stability and transport.
  • Examination of adjuvant and carrier systems for peptide immunogenicity.

Main Results:

  • Efficient peptide production methods are now available.
  • Numerous modifications exist to improve peptide stability, transport, and affinity.
  • Novel adjuvant and carrier systems enhance peptide immunogenicity for vaccine applications.

Conclusions:

  • Peptide therapeutics and vaccines are promising areas of pharmaceutical development.
  • Ongoing research focuses on optimizing peptide properties for clinical use.
  • Technological advancements are key to realizing the full potential of peptide drugs.