FOXA2 gene mutation in a patient with congenital complex pituitary hormone deficiency

Hiroko Boda, Masafumi Miyata, Hidehito Inagaki, Yasuko Shinkai, Takema Kato, Tetsushi Yoshikawa, Hiroki Kurahashi

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We report a patient with congenital complex pituitary hormone deficiency (CPHD) with intestinal malrotation and anal atresia. We identified a de novo heterozygous mutation, c.664T > G (p.Cys222Gly), in the FOXA2 gene in this individual. This missense mutation had the potential to affect the DNA binding properties of the FOXA2 protein based on a protein structure prediction. Since a CPHD patient with another missense mutation and one other case with an entire gene deletion have also been reported, we speculated that a haploinsufficiency of the FOXA2 gene might be a genetic etiology for this disorder. Phenotypic similarities and differences among these three cases are also discussed.

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