Small Molecules Targeting HSF1 Pathway: Chemical Strategies and Therapeutic Potential

Area of Science:

• Biochemistry
• Molecular Biology
• Medicinal Chemistry

Background:

• Heat shock factor 1 (HSF1) is crucial for cellular stress responses and cancer progression.
• HSF1's disordered structure and lack of binding pockets make it a challenging therapeutic target.
• Existing research highlights HSF1's role in various pathologies, including cancer, neurodegeneration, and metabolic diseases.

Purpose of the Study:

• To review recent advances in medicinal chemistry for modulating Heat shock factor 1 (HSF1) activity.
• To provide insights into innovative chemical strategies for targeting previously undruggable HSF1.
• To explore therapeutic opportunities for HSF1 inhibitors in oncology, neurodegeneration, and metabolic disorders.

Main Methods:

• Review of recent medicinal chemistry literature and drug discovery approaches.
• Analysis of small-molecule modulators targeting HSF1's functional domains and regulatory networks.
• Exploration of chemical strategies to overcome HSF1's inherent druggability challenges.

Main Results:

• Diverse small-molecule modulators of HSF1 have been developed using innovative chemical strategies.
• New approaches enable regulation of HSF1 activity by direct engagement or indirect network modulation.
• The chemical space for HSF1 modulation has significantly expanded.

Conclusions:

• Recent medicinal chemistry advancements offer viable strategies to target HSF1, an 'undruggable' protein.
• These findings provide a foundation for designing novel HSF1 inhibitors.
• HSF1 modulation holds promise for treating cancer, neurodegenerative, and metabolic diseases.