首页 | 本学科首页   官方微博 | 高级检索  
     


Mutations in SMAD3 cause a syndromic form of aortic aneurysms and dissections with early-onset osteoarthritis
Authors:van de Laar Ingrid M B H  Oldenburg Rogier A  Pals Gerard  Roos-Hesselink Jolien W  de Graaf Bianca M  Verhagen Judith M A  Hoedemaekers Yvonne M  Willemsen Rob  Severijnen Lies-Anne  Venselaar Hanka  Vriend Gert  Pattynama Peter M  Collée Margriet  Majoor-Krakauer Danielle  Poldermans Don  Frohn-Mulder Ingrid M E  Micha Dimitra  Timmermans Janneke  Hilhorst-Hofstee Yvonne  Bierma-Zeinstra Sita M  Willems Patrick J  Kros Johan M  Oei Edwin H G  Oostra Ben A  Wessels Marja W  Bertoli-Avella Aida M
Affiliation:Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, The Netherlands.
Abstract:Thoracic aortic aneurysms and dissections are a main feature of connective tissue disorders, such as Marfan syndrome and Loeys-Dietz syndrome. We delineated a new syndrome presenting with aneurysms, dissections and tortuosity throughout the arterial tree in association with mild craniofacial features and skeletal and cutaneous anomalies. In contrast with other aneurysm syndromes, most of these affected individuals presented with early-onset osteoarthritis. We mapped the genetic locus to chromosome 15q22.2-24.2 and show that the disease is caused by mutations in SMAD3. This gene encodes a member of the TGF-β pathway that is essential for TGF-β signal transmission. SMAD3 mutations lead to increased aortic expression of several key players in the TGF-β pathway, including SMAD3. Molecular diagnosis will allow early and reliable identification of cases and relatives at risk for major cardiovascular complications. Our findings endorse the TGF-β pathway as the primary pharmacological target for the development of new treatments for aortic aneurysms and osteoarthritis.
Keywords:
本文献已被 PubMed 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号