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Bi-allelic loss-of-function variants in PPFIBP1 cause a neurodevelopmental disorder with microcephaly, epilepsy, and periventricular calcifications

Rosenhahn, Erik (författare)
Institute of Human Genetics, University of Leipzig Medical Center, Germany
O'Brien, Thomas J. (författare)
MRC London Institute of Medical Sciences, United Kingdom
Zaki, Maha S. (författare)
Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt
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Sorge, Ina (författare)
Department of Pediatric Radiology, University Hospital Leipzig, Germany
Wieczorek, Dagmar (författare)
Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Germany
Rostasy, Kevin (författare)
Department of Pediatric Neurology, Children's and Adolescents’ Hospital Datteln, Witten/Herdecke University, Germany
Vitobello, Antonio (författare)
UF6254 Innovation en Diagnostic Genomique des Maladies Rares, CHU Dijon Bourgogne, FHU translad, Génétique des Anomalies du Développement, INSERM UMR 1231, Université de Bourgogne-Franche Comté, Dijon, France
Nambot, Sophie (författare)
Centre de Génétique et Centre de référence des Maladies rare, Anomalies du Développement et Syndromes Malformatifs, Hôpital d'Enfants, Centre Hospitalier Universitaire de Dijon, France
Alkuraya, Fowsan S. (författare)
Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia ; Department of Anatomy and Cell Biology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
Hashem, Mais O. (författare)
Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
Alhashem, Amal (författare)
Karolinska Institutet
Tabarki, Brahim (författare)
Department of Pediatrics, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
Alamri, Abdullah S. (författare)
Department of Pediatrics, Imam Abdulrahman bin Faisal University, Dammam, Saudi Arabia
Al Safar, Ayat H. (författare)
Department of Pediatrics, Imam Abdulrahman bin Faisal University, Dammam, Saudi Arabia
Bubshait, Dalal K. (författare)
Department of Pediatrics, Imam Abdulrahman bin Faisal University, Dammam, Saudi Arabia
Alahmady, Nada F. (författare)
Biology Department, Imam Abdulrahman bin Faisal University, Dammam, Saudi Arabia
Gleeson, Joseph G. (författare)
Department of Neurosciences, University of California, San Diego, La Jolla, CA, USA ; Rady Children’s Institute for Genomic Medicine, San Diego, La Jolla, CA, USA
Abdel-Hamid, Mohamed S. (författare)
Medical Molecular Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt
Lesko, Nicole (författare)
Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden ; Centre for Inherited Metabolic Diseases, Karolinska University Hospital, Stockholm, Sweden
Ygberg, Sofia (författare)
Karolinska Institutet
Correia, Sandrina P. (författare)
Karolinska Institutet
Wredenberg, Anna (författare)
Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden ; Centre for Inherited Metabolic Diseases, Karolinska University Hospital, Stockholm, Sweden
Alavi, Shahryar (författare)
Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Iran ; Palindrome, Isfahan, Iran
Seyedhassani, Seyed M. (författare)
Dr. Seyedhassani Medical Genetic Center, Yazd, Iran
Ebrahimi Nasab, Mahya (författare)
Dr. Seyedhassani Medical Genetic Center, Yazd, Iran
Hussien, Haytham (författare)
Alexandria University Children’s Hospital, Faculty of Medicine, Alexandria University, Egypt
Omar, Tarek E. I. (författare)
Alexandria University Children’s Hospital, Faculty of Medicine, Alexandria University, Egypt
Harzallah, Ines (författare)
Clinical, Chromosomal and Molecular Genetics Department, University Hospital Center, Saint-Étienne, France
Touraine, Renaud (författare)
Clinical, Chromosomal and Molecular Genetics Department, University Hospital Center, Saint-Étienne, France
Tajsharghi, Homa (författare)
Högskolan i Skövde,Institutionen för hälsovetenskaper,Forskningsmiljön hälsa, hållbarhet och digitalisering,Translationell medicin TRIM, Translational Medicine
Morsy, Heba (författare)
UCL Queen Square Institute of Neurology, University College London, UK
Houlden, Henry (författare)
UCL Queen Square Institute of Neurology, University College London, UK
Shahrooei, Mohammad (författare)
Specialized Immunology Laboratory of Dr. Shahrooei, Sina Medical Complex, Ahvaz, Iran ; Department of Microbiology and Immunology, Clinical and Diagnostic Immunology, KU Leuven, Belgium
Ghavideldarestani, Maryam (författare)
Specialized Immunology Laboratory of Dr. Shahrooei, Sina Medical Complex, Ahvaz, Iran
Abdel-Salam, Ghada M. H. (författare)
Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt
Torella, Annalaura (författare)
Department of Precision Medicine, University of Campania Luigi Vanvitelli, Naples, Italy ; Telethon Institute of Genetics and Medicine, Naples, Italy
Zanobio, Mariateresa (författare)
Department of Precision Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
Terrone, Gaetano (författare)
Child Neurology Unit, Department of Translational Medical Science, University of Naples Federico II, Naples, Italy
Brunetti-Pierri, Nicola (författare)
Telethon Institute of Genetics and Medicine, Naples, Italy ; Department of Translational Medicine, Section of Pediatrics, University of Naples Federico II, Italy
Omrani, Abdolmajid (författare)
Division of Clinical Studies, The Persian Gulf Nuclear Medicine Research Center, Bushehr University of Medical Sciences, Iran
Hentschel, Julia (författare)
Institute of Human Genetics, University of Leipzig Medical Center, Leipzig, Germany
Lemke, Johannes R. (författare)
Institute of Human Genetics, University of Leipzig Medical Center, Germany ; Center for Rare Diseases, University of Leipzig Medical Center, Germany
Sticht, Heinrich (författare)
Institute of Biochemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
Abou Jamra, Rami (författare)
Institute of Human Genetics, University of Leipzig Medical Center, Germany
Brown, Andre E. X. (författare)
MRC London Institute of Medical Sciences, UK ; Faculty of Medicine, Institute of Clinical Sciences, Imperial College London, UK ;
Maroofian, Reza (författare)
UCL Queen Square Institute of Neurology, University College London, UK
Platzer, Konrad (författare)
Institute of Human Genetics, University of Leipzig Medical Center, Germany
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 (creator_code:org_t)
Cell Press, 2022
2022
Engelska.
Ingår i: American Journal of Human Genetics. - : Cell Press. - 0002-9297 .- 1537-6605. ; 109:8, s. 1421-1435
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • PPFIBP1 encodes for the liprin-β1 protein, which has been shown to play a role in neuronal outgrowth and synapse formation in Drosophila melanogaster. By exome and genome sequencing, we detected nine ultra-rare homozygous loss-of-function variants in 16 individuals from 12 unrelated families. The individuals presented with moderate to profound developmental delay, often refractory early-onset epilepsy, and progressive microcephaly. Further common clinical findings included muscular hyper- and hypotonia, spasticity, failure to thrive and short stature, feeding difficulties, impaired vision, and congenital heart defects. Neuroimaging revealed abnormalities of brain morphology with leukoencephalopathy, ventriculomegaly, cortical abnormalities, and intracranial periventricular calcifications as major features. In a fetus with intracranial calcifications, we identified a rare homozygous missense variant that by structural analysis was predicted to disturb the topology of the SAM domain region that is essential for protein-protein interaction. For further insight into the effects of PPFIBP1 loss of function, we performed automated behavioral phenotyping of a Caenorhabditis elegans PPFIBP1/hlb-1 knockout model, which revealed defects in spontaneous and light-induced behavior and confirmed resistance to the acetylcholinesterase inhibitor aldicarb, suggesting a defect in the neuronal presynaptic zone. In conclusion, we establish bi-allelic loss-of-function variants in PPFIBP1 as a cause of an autosomal recessive severe neurodevelopmental disorder with early-onset epilepsy, microcephaly, and periventricular calcifications. 

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Medicinska och farmaceutiska grundvetenskaper -- Medicinsk genetik (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Basic Medicine -- Medical Genetics (hsv//eng)
MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Klinisk laboratoriemedicin (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Clinical Laboratory Medicine (hsv//eng)
MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Neurologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Neurology (hsv//eng)
MEDICIN OCH HÄLSOVETENSKAP  -- Medicinsk bioteknologi -- Biomedicinsk laboratorievetenskap/teknologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Medical Biotechnology -- Biomedical Laboratory Science/Technology (hsv//eng)
MEDICIN OCH HÄLSOVETENSKAP  -- Medicinska och farmaceutiska grundvetenskaper -- Cell- och molekylärbiologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Basic Medicine -- Cell and Molecular Biology (hsv//eng)

Nyckelord

Acetylcholinesterase
Animals
Drosophila melanogaster
Epilepsy
Loss of Heterozygosity
Microcephaly
Nervous System Malformations
Neurodevelopmental Disorders
Pedigree
animal
genetics
heterozygosity loss
mental disease
nervous system malformation
Translationell medicin TRIM
Translational Medicine TRIM

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