ASPP2 deficiency causes features of 1q41q42 microdeletion syndrome
| Autor: | Elizabeth A. Slee, Aude Vernet, Fabrice Prin, A T Collins, Samuel H. Zinner, Craig A. Lygate, Virginie Vives, Dagmar Wieczorek, Arthur S. Aylsworth, Holly Dubbs, Eva Chian-Hui Chen, A M Innes, Shelagh Joss, Pieter M. Pretorius, Jaroslav Zak, Paul D. Miller, Anne Dieux-Coeslier, Dieter Kotzot, Xin Lu, Jürgen E. Schneider, Michael Parker, Edda Haberlandt, Joris Andrieux, Luis F. Escobar, Daryl A. Scott, Y S Choy, Z Zakaria, Megan Tucker, Yves Lacassie, Dorota Szumska, Jill A. Rosenfeld, K R Jun, Timothy J. Mohun |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Pathology medicine.medical_specialty Candidate gene Craniofacial abnormality Heart Ventricles Medizin Biology Microphthalmia 03 medical and health sciences Lateral ventricles 0302 clinical medicine Intellectual disability medicine Animals Neural Tube Defects Molecular Biology 1q41q42 microdeletion syndrome Coloboma Original Paper Mice Inbred BALB C Tumor Suppressor Proteins Neural tube Brain Cell Biology Syndrome medicine.disease Embryo Mammalian Magnetic Resonance Imaging Mice Inbred C57BL 030104 developmental biology medicine.anatomical_structure Phenotype Female Chromosome Deletion Apoptosis Regulatory Proteins 030217 neurology & neurosurgery Gene Deletion |
| DOI: | 10.1038/cdd.2016.76 |
| Popis: | Chromosomal abnormalities are implicated in a substantial number of human developmental syndromes, but for many such disorders little is known about the causative genes. The recently described 1q41q42 microdeletion syndrome is characterized by characteristic dysmorphic features, intellectual disability and brain morphological abnormalities, but the precise genetic basis for these abnormalities remains unknown. Here, our detailed analysis of the genetic abnormalities of 1q41q42 microdeletion cases identified TP53BP2, which encodes apoptosis-stimulating protein of p53 2 (ASPP2), as a candidate gene for brain abnormalities. Consistent with this, Trp53bp2-deficient mice show dilation of lateral ventricles resembling the phenotype of 1q41q42 microdeletion patients. Trp53bp2 deficiency causes 100% neonatal lethality in the C57BL/6 background associated with a high incidence of neural tube defects and a range of developmental abnormalities such as congenital heart defects, coloboma, microphthalmia, urogenital and craniofacial abnormalities. Interestingly, abnormalities show a high degree of overlap with 1q41q42 microdeletion-associated abnormalities. These findings identify TP53BP2 as a strong candidate causative gene for central nervous system (CNS) defects in 1q41q42 microdeletion syndrome, and open new avenues for investigation of the mechanisms underlying CNS abnormalities.Cell Death and Differentiation advance online publication, 22 July 2016; doi:10.1038/cdd.2016.76. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|