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PDE3A mutations cause autosomal dominant hypertension with brachydactyly

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Official URL:https://doi.org/10.1038/ng.3302
PubMed:View item in PubMed
Creators Name:Maass, P.G. and Aydin, A. and Luft, F.C. and Schaechterle, C. and Weise, A. and Stricker, S. and Lindschau, C. and Vaegler, M. and Qadri, F. and Toka, H.R. and Schulz, H. and Krawitz, P.M. and Parkhomchuk, D. and Hecht, J. and Hollfinger, I. and Wefeld-Neuenfeld, Y. and Bartels-Klein, E. and Muehl, A. and Kann, M. and Schuster, H. and Chitayat, D. and Bialer, M.G. and Wienker, T.F. and Ott, J. and Rittscher, K. and Liehr, T. and Jordan, J. and Plessis, G. and Tank, J. and Mai, K. and Naraghi, R. and Hodge, R. and Hopp, M. and Hattenbach, L.O. and Busjahn, A. and Rauch, A. and Vandeput, F. and Gong, M. and Rueschendorf, F. and Huebner, N. and Haller, H. and Mundlos, S. and Bilginturan, N. and Movsesian, M.A. and Klussmann, E. and Toka, O. and Baehring, S.
Journal Title:Nature Genetics
Journal Abbreviation:Nat Genet
Volume:47
Number:6
Page Range:647-653
Date:June 2015
Keywords:Amino Acid Sequence, Base Sequence, Brachydactyly, Case-Control Studies, Cell Differentiation, Genetic Association Studies, HeLa Cells, Hypertension, Kinetics, Mesenchymal Stromal Cells, Missense Mutation, Molecular Sequence Data, Pedigree, Smooth Muscle Myocytes, Type 3 Cyclic Nucleotide Phosphodiesterases, Animals, Mice
Abstract:Cardiovascular disease is the most common cause of death worldwide, and hypertension is the major risk factor. Mendelian hypertension elucidates mechanisms of blood pressure regulation. Here we report six missense mutations in PDE3A (encoding phosphodiesterase 3A) in six unrelated families with mendelian hypertension and brachydactyly type E (HTNB). The syndrome features brachydactyly type E (BDE), severe salt-independent but age-dependent hypertension, an increased fibroblast growth rate, neurovascular contact at the rostral-ventrolateral medulla, altered baroreflex blood pressure regulation and death from stroke before age 50 years when untreated. In vitro analyses of mesenchymal stem cell-derived vascular smooth muscle cells (VSMCs) and chondrocytes provided insights into molecular pathogenesis. The mutations increased protein kinase A-mediated PDE3A phosphorylation and resulted in gain of function, with increased cAMP-hydrolytic activity and enhanced cell proliferation. Levels of phosphorylated VASP were diminished, and PTHrP levels were dysregulated. We suggest that the identified PDE3A mutations cause the syndrome. VSMC-expressed PDE3A deserves scrutiny as a therapeutic target for the treatment of hypertension.
ISSN:1061-4036
Publisher:Nature Publishing Group (U.S.A.)
Item Type:Article

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