Precision therapeutics in non-scarring alopecia: a systemic genomic and pathway-based framework for targeted...

Area of Science:

• Dermatology and Genetics
• Molecular Biology
• Precision Medicine

Background:

• Non-scarring alopecia, such as androgenetic alopecia (androgen-driven) and alopecia areata (autoimmune), is common and distressing.
• Understanding the genetic and biological underpinnings is crucial for developing targeted treatments.

Purpose of the Study:

• To synthesize genetic architecture and pathway biology for non-scarring alopecias.
• To outline a precision framework for targeted interventions in androgenetic alopecia and alopecia areata.

Main Methods:

• Comprehensive literature review of studies from the past decade (PubMed, Web of Science, Google Scholar).
• Emphasis on Genome-wide association studies (GWAS), Next-generation sequencing (NGS), immune and androgen-axis biology, and AI-enabled diagnostics.
• Inclusion of therapeutic evidence for conventional, targeted, and regenerative approaches.

Main Results:

• Androgenetic alopecia risk is linked to androgen-receptor signaling; finasteride is a key therapy.
• Alopecia areata involves polygenic immune dysregulation, with Janus Kinase (JAK) inhibitors showing efficacy.
• Wingless-related integration site (Wnt)/β-catenin and stem cell pathways are common targets; regenerative therapies and AI are emerging adjuncts.

Conclusions:

• A precision strategy targeting specific pathways (androgen axis for AGA, immune circuits for AA) offers personalized and durable outcomes.
• Integration of GWAS, NGS, and AI tools is essential for advancing diagnosis and treatment in hair loss disorders.