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Chen Y, Liu J, Zhang Q, Chai L, Chen H, Li D, Wang Y, Qiu Y, Shen N, Zhang J, Wang Q, Wang J, Xie X, Li S, Li M. Activation of CaMKII/HDAC4 by SDF1 contributes to pulmonary arterial hypertension via stabilization Runx2. Eur J Pharmacol 2024; 970:176483. [PMID: 38479721 DOI: 10.1016/j.ejphar.2024.176483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 03/04/2024] [Accepted: 03/05/2024] [Indexed: 04/02/2024]
Abstract
Stromal derived factor 1 (SDF1) has been shown to be involved in the pathogenesis of pulmonary artery hypertension (PAH). However, the detailed molecular mechanisms remain unclear. To address this, we utilized primary cultured rat pulmonary artery smooth muscle cells (PASMCs) and monocrotaline (MCT)-induced PAH rat models to investigate the mechanisms of SDF1 driving PASMCs proliferation and pulmonary arterial remodeling. SDF1 increased runt-related transcription factor 2 (Runx2) acetylation by Calmodulin (CaM)-dependent protein kinase II (CaMKII)-dependent HDAC4 cytoplasmic translocation, elevation of Runx2 acetylation conferred its resistance to proteasome-mediated degradation. The accumulation of Runx2 further upregulated osteopontin (OPN) expression, finally leading to PASMCs proliferation. Blocking SDF1, suppression of CaMKII, inhibition the nuclear export of HDAC4 or silencing Runx2 attenuated pulmonary arterial remodeling and prevented PAH development in MCT-induced PAH rat models. Our study provides novel sights for SDF1 induction of PASMCs proliferation and suggests that targeting SDF1/CaMKII/HDAC4/Runx2 axis has potential value in the management of PAH.
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Affiliation(s)
- Yuqian Chen
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, No. 277, West Yanta Road, Xi'an, Shaanxi, 710061, China
| | - Jin Liu
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, No. 277, West Yanta Road, Xi'an, Shaanxi, 710061, China
| | - Qianqian Zhang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, No. 277, West Yanta Road, Xi'an, Shaanxi, 710061, China
| | - Limin Chai
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, No. 277, West Yanta Road, Xi'an, Shaanxi, 710061, China
| | - Huan Chen
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, No. 277, West Yanta Road, Xi'an, Shaanxi, 710061, China
| | - Danyang Li
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, No. 277, West Yanta Road, Xi'an, Shaanxi, 710061, China
| | - Yan Wang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, No. 277, West Yanta Road, Xi'an, Shaanxi, 710061, China
| | - Yuanjie Qiu
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, No. 277, West Yanta Road, Xi'an, Shaanxi, 710061, China
| | - Nirui Shen
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, No. 277, West Yanta Road, Xi'an, Shaanxi, 710061, China
| | - Jia Zhang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, No. 277, West Yanta Road, Xi'an, Shaanxi, 710061, China
| | - Qingting Wang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, No. 277, West Yanta Road, Xi'an, Shaanxi, 710061, China
| | - Jian Wang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, No. 277, West Yanta Road, Xi'an, Shaanxi, 710061, China
| | - Xinming Xie
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, No. 277, West Yanta Road, Xi'an, Shaanxi, 710061, China
| | - Shaojun Li
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, No. 277, West Yanta Road, Xi'an, Shaanxi, 710061, China
| | - Manxiang Li
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, No. 277, West Yanta Road, Xi'an, Shaanxi, 710061, China.
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