[Role of 15-lipoxygenase/15-hydroxyeicosatetraenoic acid in hypoxic pulmonary arterial hypertension].

Abstract

Pulmonary arterial hypertension (PAH) is a rare disease with a complex aetiology characterized by elevated pulmonary artery resistance, which leads to progressive right ventricular failure and ultimately death. The aberrant metabolism of arachidonic acid in the pulmonary vasculature plays a central role in the pathogenesis of PAH. The levels of 15-lipoxygenase (15-LO) and 15-hydroxyeicosatetraenoic acid (15-HETE) are elevated in the pulmonary arterial endothelial cells (PAECs), pulmonary smooth muscle cells (PASMCs) and fibroblasts of PAH patients. Under hypoxia condition, 15-LO/15-HETE induces pulmonary artery contraction, promotes the proliferation of PAECs and PASMCs, inhibits apoptosis of PASMCs, promotes fibrosis of pulmonary vessels, and then leads to the occurrence of PAH. Here, we review the research progress on the relationship between 15-LO/15-HETE and hypoxic PAH, in order to clarify the significance of 15-LO/15-HETE in hypoxic PAH.

• Authors: Hang Yu, Cui Ma, Da-Ling Zhu
• Journal: Sheng li xue bao : [Acta physiologica Sinica] (Sheng Li Xue Bao) Vol. 73 Issue 4 Pg. 646-656 (Aug 25 2021) ISSN: 0371-0874 [Print] China
• PMID: 34405220 (Publication Type: Journal Article, Review)

Chemical References

• Hydroxyeicosatetraenoic Acids
• Arachidonate 15-Lipoxygenase

Topics

• Arachidonate 15-Lipoxygenase
• Cell Proliferation
• Cells, Cultured
• Endothelial Cells
• Humans
• Hydroxyeicosatetraenoic Acids
• Hypoxia
• Myocytes, Smooth Muscle
• Pulmonary Arterial Hypertension
• Pulmonary Artery