Abstract
Pulmonary arterial hypertension (PAH) is a devastating disease of the pulmonary circulation, characterized by pulmonary vascular remodeling leading to elevated pulmonary arterial pressure, increased pulmonary vascular resistance, and right heart failure. Unfortunately, up until now, no definite cure exists for this disease. Currently available drugs focus on pulmonary vasodilation, anti-proliferation, and augmentation of endothelial function by targeting nitric oxide, endothelin, voltage-gated calcium channels, and prostacyclin signaling pathways. However, these drugs only partially improve survival and quality of life as they do not address the underlying pulmonary vascular remodeling. Over the past few years, attempts have been made to identify effective therapies that target different, anti-remodeling mechanisms and signaling pathways. Targets for these therapies include genetic and epigenetic modifications, growth factors and proliferation, inflammation and immunomodulation, endothelial-mesenchymal transition, and metabolic abnormalities. In this chapter, we outline and discuss promising novel therapeutic approaches that target diverse molecular and cellular signaling mechanisms involved in PAH.
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Acknowledgments
Authors are thankful to Dr. Adam Andruska, Division of Pulmonary, Allergy, and Critical Care Medicine, Stanford University, USA, for providing guidance, for editing the chapter, and also for providing the lung section images of PAH patients and healthy controls.
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Ali, M.K., Horvat, J.C., Spiekerkoetter, E.F. (2021). Targeting Molecular and Cellular Mechanisms of Pulmonary Arterial Hypertension. In: Dua, K., Löbenberg, R., Malheiros Luzo, Â.C., Shukla, S., Satija, S. (eds) Targeting Cellular Signalling Pathways in Lung Diseases. Springer, Singapore. https://doi.org/10.1007/978-981-33-6827-9_18
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