Related Experiment Video
Updated: Jul 27, 2025
08:55
Facile Protocol for the Synthesis of Self-assembling Polyamine-based Peptide Amphiphiles PPAs and Related Biomaterials
Published on: June 25, 2018
8.1K
Polyamine-Drug Conjugates: Do They Boost Drug Activity?
Filippo Basagni1, Giambattista Marotta1, Michela Rosini1
1Department of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy.
Molecules (Basel, Switzerland)
|June 10, 2023
Summary
Conjugating polyamine tails to drugs enhances their effectiveness by improving cellular uptake. This review highlights polyamine conjugates for various therapeutic areas over the last decade.
Area of Science:
- Medicinal Chemistry
- Pharmacology
- Drug Delivery
Background:
- Polyamines are crucial for cell function.
- Elevated polyamine transport is observed in various diseases.
- Conjugating polyamines to bioactive molecules enhances pharmacological profiles.
Purpose of the Study:
- To review polyamine conjugates developed in the last decade.
- To classify these conjugates by therapeutic area.
- To highlight achievements and guide future polyamine conjugate development.
Main Methods:
- Literature review of polyamine conjugates.
- Classification based on therapeutic applications (anticancer, antimicrobial, antioxidant, neuroprotective).
- Analysis of pharmacological enhancements attributed to polyamine conjugation.
Main Results:
- Numerous polyamine conjugates have been developed for diverse therapeutic applications.
- Polyamines facilitate enhanced cellular and subcellular uptake via transporter systems.
- Conjugation strategies have successfully improved the efficacy of various bioactive agents.
Conclusions:
- Polyamine conjugation is a validated strategy for improving drug delivery and efficacy.
- Future research should focus on optimizing polyamine conjugates for specific pathological conditions.
- The polyamine transporter system offers a promising target for drug delivery enhancement.
Related Concept Videos
01:27Combined Effects of Drugs: Synergism
4.1K
Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Such synergistic combinations...
4.1K
01:14Phase II Conjugation Reactions: Overview
249
Conjugation, a key component of phase II biotransformation reactions, is a vital process in drug detoxification. It involves transferring endogenous substances like glucuronic acid, sulfate, and glycine to drugs or their metabolites formed in phase I reactions. These conjugation reactions, often catalyzed by specific enzymes, transform potentially harmful metabolites into inactive, water-soluble forms easily excreted in urine or bile. By enhancing polarity and eliminating pharmacological...
249
01:14Drug Metabolism: Phase II Reactions
3.9K
Phase II reactions are essential for the detoxification and elimination of drugs from the body. These reactions involve the conjugation of parent drugs or their phase I metabolites with endogenous molecules, resulting in more hydrophilic drug conjugates. The primary conjugation reactions in this phase are sulfation and glucuronidation. Both sulfation and glucuronidation typically produce biologically inactive metabolites. However, in some cases involving prodrugs, active metabolites may be...
3.9K
01:30Prodrugs
2.7K
Prodrugs are a class of pharmaceutical compounds that undergo a biotransformation process within the body to be converted into a pharmacologically active drug. Prodrugs are designed to improve the therapeutic properties of the parent drug, such as enhancing bioavailability, increasing stability, or reducing toxicity. The concept of prodrugs revolves around modifying the chemical structure of the original drug to make it more effective or convenient for administration.
Prodrugs help overcome...
Prodrugs help overcome...
2.7K
01:24Principles of Drug Action
6.2K
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...
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...
6.2K
01:19Phase II Reactions: Sulfation and Conjugation with α-Amino Acids
303
Sulfation and α-amino acid conjugation are two critical biotransformation reactions in drug metabolism. Sulfation, a phase II biotransformation reaction, involves adding a polar sulfate group to a drug, enhancing its water solubility and promoting excretion. This process can either co-occur with or occur independently of glucuronidation. Nonmicrosomal sulfotransferase enzymes catalyze the process. The reaction involves 3'-phosphoadenosine-5'-phosphosulfate or PAPS coenzyme...
303