Absence of Neutropenia in Patients With Early Exon Nonsense Mutations in ELANE : Clinical Evidence to Support Gene Therapy Approaches for Severe Congenital Neutropenia.
Margret Joos, Timothy H Chang, Akiko Shimamura, Peter E Newburger
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引用次数: 0
Abstract
Severe congenital neutropenia is an inherited bone marrow failure disorder characterized by profoundly low neutrophil counts and promyelocytic maturation arrest in bone marrow. Severe congenital neutropenia is most often caused by heterozygous ELANE mutations. In vitro and mouse xenograft studies using CRISPR/Cas9 have shown that introduction of frameshift/nonsense mutations in mutant ELANE may restore neutrophil counts, providing a model for gene therapy. Here, we present 2 children with inherited nonsense mutations in ELANE analogous to those proposed for gene therapy. Their normal peripheral blood neutrophil counts provide support for this approach through human "experiments of nature."
期刊介绍:
Journal of Pediatric Hematology/Oncology (JPHO) reports on major advances in the diagnosis and treatment of cancer and blood diseases in children. The journal publishes original research, commentaries, historical insights, and clinical and laboratory observations.