Unravelling the Threads of Central Centrifugal Cicatricial Alopecia

Central centrifugal cicatricial alopecia (CCCA) is a progressive form of primary scarring alopecia, predominantly affecting women of African descent. Recent research by Keller-Rosenthal et al. involving 75 patients has identified genetic factors, particularly variants in the PADI3 gene and its substrates, as key contributors to CCCA. The study found that 33% of patients had at least one heterozygous variant in PADI3, with additional variants identified in S100A3 and TCHH genes. These genetic defects impair the enzymatic process of citrullination, leading to structurally compromised hair fibers. The findings suggest that CCCA results from a combination of genetic predisposition and environmental factors, shifting the focus from purely environmental causes. This research highlights the need for further studies to explore the prevalence of these genetic variants and develop targeted treatments, offering hope for more effective management of CCCA.