Salicylanilides and Their Anticancer Properties

Area of Science:

• Pharmacology
• Oncology
• Medicinal Chemistry

Background:

• Salicylanilides are established anthelmintics with broad biological activities.
• Halogenated salicylanilides are being investigated for cancer drug repurposing.
• Niclosamide is a prominent salicylanilide with studied anticancer properties.

Purpose of the Study:

• To provide a comprehensive overview of salicylanilides' anticancer mechanisms.
• To review preclinical evidence for salicylanilide anticancer activity.
• To discuss structural requirements for salicylanilide anticancer effects.

Main Methods:

• Literature review of preclinical in vitro and in vivo studies.
• Analysis of proposed mechanisms of action.
• Examination of structure-activity relationships.

Main Results:

• Salicylanilides exhibit anticancer potential through multiple mechanisms.
• Mechanisms include uncoupling oxidative phosphorylation and inhibiting protein tyrosine kinases.
• Modulation of Wnt/β-catenin, mTORC1, STAT3, NF-κB, and Notch signaling pathways is observed.
• Induction of B-Raf V600E inhibition is another identified mechanism.

Conclusions:

• Salicylanilides represent a promising class of compounds for cancer therapy.
• Diverse mechanisms underpin their anticancer activity, offering multiple therapeutic strategies.
• Further research into structural requirements can optimize drug development for oncology.