Exploring Quinoline Derivatives: Their Antimalarial Efficacy and Structural Features

Area of Science:

• Medicinal Chemistry
• Parasitology
• Drug Discovery

Background:

• Malaria remains a leading global cause of mortality, necessitating urgent development of effective treatments.
• Timely diagnosis and prompt intervention are critical for managing malaria's adverse effects.

Purpose of the Study:

• To review quinoline-based compounds as antimalarial agents, focusing on their effectiveness and structural characteristics.
• To explore the therapeutic potential and structure-activity relationships (SAR) of quinoline derivatives.
• To identify lead compounds effective against multidrug-resistant Plasmodium falciparum and Plasmodium vivax.

Main Methods:

• A comprehensive literature review was performed.
• Evaluated the efficacy of quinoline-based antimalarials against P. falciparum and P. vivax.
• Analyzed the mechanisms of action and SAR of these compounds.

Main Results:

• Quinoline antimalarials effectively eliminated P. falciparum, especially in Africa and Asia.
• Compounds showed immune-modulating properties and tolerance, suggesting broader applicability.
• New derivatives, including metal-chloroquine complexes and hybrid chloroquines, exhibited enhanced antimalarial activity.
• Mechanisms involve accumulation in parasite food vacuoles and disruption of heme detoxification.
• Strong efficacy was observed against chloroquine-resistant strains.

Conclusions:

• Quinoline-based compounds offer a promising strategy for malaria control against P. falciparum and P. vivax.
• Further investigation of SAR and mechanisms can facilitate the development of superior antimalarial therapies.