PRUNE is crucial for normal brain development and mutated in microcephaly with neurodevelopmental impairment
نویسندگان
چکیده
PRUNE is a member of the DHH (Asp-His-His) phosphoesterase protein superfamily of molecules important for cell motility, and implicated in cancer progression. Here we investigated multiple families from Oman, India, Iran and Italy with individuals affected by a new autosomal recessive neurodevelopmental and degenerative disorder in which the cardinal features include primary microcephaly and profound global developmental delay. Our genetic studies identified biallelic mutations of PRUNE1 as responsible. Our functional assays of disease-associated variant alleles revealed impaired microtubule polymerization, as well as cell migration and proliferation properties, of mutant PRUNE. Additionally, our studies also highlight a potential new role for PRUNE during microtubule polymerization, which is essential for the cytoskeletal rearrangements that occur during cellular division and proliferation. Together these studies define PRUNE as a molecule fundamental for normal human cortical development and define cellular and clinical consequences associated with PRUNE mutation.
منابع مشابه
PRUNE Syndrome Is a New Neurodevelopmental Disorder
PRUNE syndrome, or neurodevelopmental disorder with microcephaly, hypotonia, and variable brain anomalies (OMIM#617481), is a new rare autosomal recessive neurodevelopmental disease that is caused by homozygous or compound heterozygous mutation in PRUNE1 on chromosome 1q21. Here, We report on 12-month-old and 30-month-old girls from 2 unrelated Saudi families with typical presentations of PRUNE...
متن کاملMolecular and Cellular Basis of Autosomal Recessive Primary Microcephaly
Autosomal recessive primary microcephaly (MCPH) is a rare hereditary neurodevelopmental disorder characterized by a marked reduction in brain size and intellectual disability. MCPH is genetically heterogeneous and can exhibit additional clinical features that overlap with related disorders including Seckel syndrome, Meier-Gorlin syndrome, and microcephalic osteodysplastic dwarfism. In this revi...
متن کاملNeurodevelopmental Outcome of Patients With Agenesis of Corpus Callosum
Background: Agenesis of Corpus Callosum (ACC) is a type of brain dysgenesis with various clinical manifestations. Objectives: This study aimed to investigate the clinical and neurodevelopmental outcomes of patients with ACC. Materials & Methods: In this cross-sectional study, the clinical and neurodevelopmental conditions of 62 patients with complete ACC referred to subspecialty clinics of pe...
متن کاملآشنایی با فنیل کتونوری
Background: Phenylketonuria is an inherited metabolic disease. It is genetic disorder autosomal recessive type. It is caused by absent or deficiency Phenylalanine hydroxylase enzyme activity that converts Phenylalanine to Tyrosine. It leads to increasing Phenylalanine in the blood. Tyrosine is important for production of some neurotransmitters. So it caused deficiencies of dopamine and serotoni...
متن کاملMicrocephaly, Deafness, and Renal Dysplasia: A Case of Barakat Syndrome
Background: Barakat syndrome is a rare autosomal dominant disorder characterized by hypoparathyroidism, sensorineural deafness, and renal disease, collectively known as HDR syndrome. This disease is caused by the mutation of GATA3 gene located on chromosome 10p15. GATA3 is involved in the embryonic development of kidneys, inner ears, parathyroid glands, and central nervous systems.Case report: ...
متن کامل