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  Somatic neurofibromatosis type 1 (NF1) inactivation events in cutaneous neurofibromas of a single NF1 patient

Emmerich, D., Zemojtel, T., Hecht, J., Krawitz, P., Spielmann, M., Kühnisch, J., et al. (2015). Somatic neurofibromatosis type 1 (NF1) inactivation events in cutaneous neurofibromas of a single NF1 patient. European journal of human genetics, 23(6), 1870-1873. doi:10.1038/ejhg.2014.210.

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© 2014 Macmillan Publishers Limited
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http://www.ncbi.nlm.nih.gov/pubmed/25293717 (beliebiger Volltext)
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Emmerich, Denise, Autor
Zemojtel, Tomasz1, Autor           
Hecht, Jochen2, Autor           
Krawitz, Peter, Autor
Spielmann, Malte2, Autor           
Kühnisch, Jirko, Autor
Kobus, Karolina, Autor
Oßwald, Monika2, Autor           
Heinrich, Verena, Autor
Berlien, Peter, Autor
Müller, Ute, Autor
Mautner, Victor-F., Autor
Wimmer, Katharina, Autor
Robinson, Peter N.2, Autor           
Vingron, Martin3, Autor           
Tinschert, Sigrid2, Autor           
Mundlos, Stefan2, Autor           
Kolanczyk, Mateusz2, Autor           
Affiliations:
1Dept. of Computational Molecular Biology (Head: Martin Vingron), Max Planck Institute for Molecular Genetics, Max Planck Society, ou_1433547              
2Research Group Development & Disease (Head: Stefan Mundlos), Max Planck Institute for Molecular Genetics, Max Planck Society, ou_1433557              
3Gene regulation (Martin Vingron), Dept. of Computational Molecular Biology (Head: Martin Vingron), Max Planck Institute for Molecular Genetics, Max Planck Society, ou_1479639              

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 Zusammenfassung: Neurofibromatosis type 1 (NF1) (MIM#162200) is a relatively frequent genetic condition that predisposes to tumor formation. The main types of tumors occurring in NF1 patients are cutaneous and subcutaneous neurofibromas, plexiform neurofibromas, optic pathway gliomas, and malignant peripheral nerve sheath tumors. To search for somatic mutations in cutaneous (dermal) neurofibromas, whole-exome sequencing (WES) was performed on seven spatially separated tumors and two reference tissues (blood and unaffected skin) from a single NF1 patient. Validation of WES findings was done using routine Sanger sequencing or Sequenom IPlex SNP genotyping. Exome sequencing confirmed the existence of a known familial splice-site mutation NM_000267.3:c.3113+1G>A in exon 23 of NF1 gene (HGMD ID CS951480) in blood, unaffected skin, and all tumor samples. In five out of seven analyzed tumors, we additionally detected second-hit mutations in the NF1 gene. Four of them were novel and one was previously observed. Each mutation was distinct, demonstrating the independent origin of each tumor. Only in two of seven tumors we detected an additional somatic mutation that was not associated with NF1. Our study demonstrated that somatic mutations of NF1 are likely the main drivers of cutaneous tumor formation. The study provides evidence for the rareness of single base pair level alterations in the exomes of benign NF1 cutaneous tumors.European Journal of Human Genetics advance online publication, 8 October 2014; doi:10.1038/ejhg.2014.210.

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Sprache(n): eng - English
 Datum: 2014-10-082015-06
 Publikationsstatus: Erschienen
 Seiten: 4
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1038/ejhg.2014.210
ISSN: 1476-5438 (Electronic)1018-4813 (Print)
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Titel: European journal of human genetics
  Andere : Eur. J. Hum. Genet.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Nature Publishing Group
Seiten: - Band / Heft: 23 (6) Artikelnummer: - Start- / Endseite: 1870 - 1873 Identifikator: ISSN: 1018-4813
CoNE: https://pure.mpg.de/cone/journals/resource/954925585277_1