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||T-cell acute lymphoblastic leukemia in association with BÃ¶rjeson-Forssman-Lehmann syndrome due to a mutation in PHF6.
||Chao MM, Todd MA, Kontny U, Neas K, Sullivan MJ, Hunter AG, Picketts DJ, Kratz CP
||Pediatr Blood Cancer
||BÃ¶rjeson-Forssman-Lehmann syndrome (BFLS) is a rare X-linked mental retardation syndrome that is caused by germline mutations in PHF6. We describe a 9-year-old male with BFLS, who developed T-cell acute lymphoblastic leukemia (T-ALL). The PHF6 gene is located on the X chromosome and encodes a protein with two PHD-type zinc finger domains and four nuclear localization sequences. Previously, overexpression of Phf6 was observed in murine T-cell lymphomas. Our observation indicates that BFLS may represent a cancer predisposition syndrome and that mutations of PHF6 contribute to T-ALL.