Open access
Jul 2026
Pyle disease - Functional validation of disease-causing missense variants in SFRP4/sFRP4.
An adult woman with clinical and radiographic features of Pyle disease including wide metaphyses (Erlenmeyer-flask deformity), cortical thinning and multiple fractures is described, which highlights the critical role of the WNT-binding domain of sFRP4 to act as a WNT signaling inhibitor.
Lex Magnus, E. Hordyjewska-Kowalczyk, Anna Sowińska-Seidler et al.
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