• J. Clin. Invest. · Oct 2005

    Comment Review

    PDGF signaling in pulmonary arterial hypertension.

    • Robyn J Barst.
    • New York Presbyterian Pulmonary Hypertension Center, Columbia University College of Physicians & Surgeons, New York, New York 10032, USA. rjb3@columbia.edu
    • J. Clin. Invest. 2005 Oct 1;115(10):2691-4.

    AbstractThe pathobiology of pulmonary arterial hypertension (PAH) includes endothelial cell dysfunction and proliferation and migration of VSMCs. As PDGF has been implicated in these processes, Schermuly et al. hypothesized that altered PDGF signaling may be involved in the vascular remodeling observed in PAH. To explore this notion further, the authors evaluated the effects of the PDGF receptor inhibitor STI571 in 2 different animal models of pulmonary hypertension. In both models, after development of pulmonary vascular disease, administration of STI571 reversed pulmonary vascular changes. These studies provide preclinical proof of concept for the clinical development of a PDGF inhibitor as a targeted therapy for PAH patients.

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