Abstract:Background:
Abnormal smooth muscle cell (SMC) TGF-β signaling is proposed as a critical driver in the development of thoracic aortic aneurysms and dissections (TAAD) associated with Marfan and Loeys-Dietz Syndromes as well as nonsyndromic TAAD. However, the mechanisms by which altered SMC TGF-β signaling causes TAAD are poorly understood. Others have proposed that loss of SMC TGF-β signaling causes TAAD by impairing SMC contractility, leading to aortic medial degeneration and dilation. However, mic… Show more
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