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<p>Pulmonary arterial hypertension (PAH) poses a challenge due to limited curative options and ineffective treatments. Mesenchymal stem cell (MSC) therapy has emerged as a potential intervention for PAH. This study delved into the therapeutic potential and molecular mechanisms underlying MSC-based apelin gene therapy in PAH rats induced by monocrotaline (MCT). Wharton's jelly-derived MSCs transfected with pcSLenti-APLN were utilized as therapeutic agents. Transplanted MSCs successfully homed to the lung tissue of rats and sustained survival for at least three weeks. MSC-mediated apelin gene therapy effectively reduced pulmonary artery pressure, mitigated pulmonary vascular remodeling, and modulated apoptosis in MCT-induced PAH rats. Furthermore, the phosphatidylinositol 3-kinase (PI3K)/AKT/endothelial nitric oxide synthase (eNOS) and ERK1/2 signaling pathways were involved in the therapeutic effects. Meanwhile, Apelin-MSCs also regulated MCT-induced changes of Bax and Bcl-2 in the lung lobes and pulmonary arterioles. MSC-based apelin gene therapy could be considered a possible therapeutic strategy for PAH.</p> Graphical Abstract <p></p>

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Mesenchymal Stem Cell-based Apelin Gene Therapy Improves Pulmonary Artery Remodeling in Monocrotaline-induced Pulmonary Hypertension Through PI3K/AKT/eNOS and ERK1/2 Signaling Pathways

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • Li Wang,
  • Weijian Wang,
  • Ting Wu,
  • Liang Chen,
  • Gangjun Zong

摘要

Pulmonary arterial hypertension (PAH) poses a challenge due to limited curative options and ineffective treatments. Mesenchymal stem cell (MSC) therapy has emerged as a potential intervention for PAH. This study delved into the therapeutic potential and molecular mechanisms underlying MSC-based apelin gene therapy in PAH rats induced by monocrotaline (MCT). Wharton's jelly-derived MSCs transfected with pcSLenti-APLN were utilized as therapeutic agents. Transplanted MSCs successfully homed to the lung tissue of rats and sustained survival for at least three weeks. MSC-mediated apelin gene therapy effectively reduced pulmonary artery pressure, mitigated pulmonary vascular remodeling, and modulated apoptosis in MCT-induced PAH rats. Furthermore, the phosphatidylinositol 3-kinase (PI3K)/AKT/endothelial nitric oxide synthase (eNOS) and ERK1/2 signaling pathways were involved in the therapeutic effects. Meanwhile, Apelin-MSCs also regulated MCT-induced changes of Bax and Bcl-2 in the lung lobes and pulmonary arterioles. MSC-based apelin gene therapy could be considered a possible therapeutic strategy for PAH.

Graphical Abstract