Gene Expression Profiling Suggests Severe, Extensive Central Centrifugal Cicatricial Alopecia May Be Both Clinically and Biologically Distinct From Limited Disease Subtypes

This study on central centrifugal cicatricial alopecia (CCCA) suggested that severe, extensive CCCA might be both clinically and biologically distinct from limited disease subtypes. By analyzing tissue samples from women with varying degrees of CCCA, researchers found that severe cases showed increased expression of genes MMP9, SFRP4, and MSR1, which are associated with fibrosis, Wnt signaling, and macrophage-mediated inflammation. These findings indicated that severe CCCA could have a unique gene expression profile, offering potential targets for future research on prognostic markers and therapeutic interventions.