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  Improved bone defect healing by a superagonistic GDF5 variant derived from a patient with multiple synostoses syndrome

Degenkolbe, E., Schwarz, C., Ott, C. E., Konig, J., Schmidt-Bleek, K., Ellinghaus, A., et al. (2015). Improved bone defect healing by a superagonistic GDF5 variant derived from a patient with multiple synostoses syndrome. Bone, 73, 111-119. doi:10.1016/j.bone.2014.12.017.

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Degenkolbe.pdf (Verlagsversion), 2MB
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© 2014 Elsevier B.V.
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http://www.ncbi.nlm.nih.gov/pubmed/25543012 (beliebiger Volltext)
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 Urheber:
Degenkolbe, E., Autor
Schwarz, C., Autor
Ott, C. E.1, Autor
Konig, J., Autor
Schmidt-Bleek, K., Autor
Ellinghaus, A., Autor
Schmidt, T., Autor
Lienau, J., Autor
Ploger, F., Autor
Mundlos, S.2, Autor           
Duda, G. N., Autor
Willie, B. M., Autor
Seemann, P.2, Autor           
Affiliations:
1Max Planck Society, ou_persistent13              
2Research Group Development & Disease (Head: Stefan Mundlos), Max Planck Institute for Molecular Genetics, Max Planck Society, ou_1433557              

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Schlagwörter: Growth and Differentiation Factor 5; NOGGIN; Bone Morphogenetic Proteins; Bone healing; Inflammation; Endochondral bone formation
 Zusammenfassung: Multiple synostoses syndrome 2 (SYNS2) is a rare genetic disease characterized by multiple fusions of the joints of the extremities, like phalangeal joints, carpal and tarsal joints or the knee and elbows. SYNS2 is caused by point mutations in the Growth and Differentiation Factor 5 (GDF5), which plays an essential role during skeletal development and regeneration. We selected one of the SYNS2-causing GDF5 mutations, p.N445T, which is known to destabilize the interaction with the Bone Morphogenetic Protein (BMP) antagonist NOGGIN (NOG), in order to generate the superagonistic GDF5 variant GDF5(N445T). In this study, we tested its capacity to support regeneration in a rat critical-sized defect model in vivo. MicroCT and histological analyses indicate that GDF5(N445T)-treated defects show faster and more efficient healing compared to GDF5 wild type (GDF5(wt))-treated defects. Microarray-based gene expression and quantitative PCR analyses from callus tissue point to a specific acceleration of the early phases of bone healing, comprising the inflammation and chondrogenesis phase. These results support the concept that disease-deduced growth factor variants are promising lead structures for novel therapeutics with improved clinical activities.

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Sprache(n): eng - English
 Datum: 2014-12-242015-04
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/j.bone.2014.12.017
ISSN: 1873-2763 (Electronic)1873-2763 (Print)
 Art des Abschluß: -

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Titel: Bone
  Andere : Bone
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: New York : Elsevier
Seiten: - Band / Heft: 73 Artikelnummer: - Start- / Endseite: 111 - 119 Identifikator: ISSN: 8756-3282
CoNE: https://pure.mpg.de/cone/journals/resource/954927629281