ArticleThe Journal of surgical research2021
PERK Inhibition Promotes Post-angioplasty Re-endothelialization via Modulating SMC Phenotype Changes.
Article in The Journal of surgical research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 12 citations in OpenAlex.
- Neointimal hyperplasia and vascular restenosis: from molecular mechanisms to therapeutic interventions.Molecular biomedicine · 2026Review
- Review
- Biomaterial-Based Nucleic Acid Delivery Systems for In Situ Tissue Engineering and Regenerative Medicine.International journal of molecular sciences · 2025Review
- Exponentially Decreasing Antigen Release Reduces Inflammatory Markers in an Antigen-Specific Manner.Journal of biomedical materials research. Part A · 2025Article
- Targeted NADJournal of controlled release : official journal of the Controlled Release Society · 2024Article
- Article
- Targeted PERK inhibition with biomimetic nanoclusters confers preventative and interventional benefits to elastase-induced abdominal aortic aneurysms.Bioactive materials · 2023Article
- Extracellular Vesicles and Ischemic Cardiovascular Diseases.Advances in experimental medicine and biology · 2023Article
- Biomimetic, ROS-detonable nanoclusters - A multimodal nanoplatform for anti-restenotic therapy.Journal of controlled release : official journal of the Controlled Release Society · 2021Article
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundDrug-eluting stents impair post-angioplasty re-endothelialization thus compromising restenosis prevention while heightening thrombotic risks. We recently found that inhibition of protein kinase RNA-like endoplasmic reticulum kinase (PERK) effectively mitigated both restenosis and thrombosis in rodent models. This motivated us to determine how PERK inhibition impacts re-endothelialization.
methodsRe-endothelialization was evaluated in endothelial-denuded rat carotid arteries after balloon angioplasty and periadventitial administration of PERK inhibitor in a hydrogel. To study whether PERK in smooth muscle cells (SMCs) regulates re-endothelialization by paracrinally influencing endothelial cells (ECs), denuded arteries exposing SMCs were lentiviral-infected to silence PERK; in vitro, the extracellular vesicles isolated from the medium of PDGF-activated, PERK-upregulating human primary SMCs were transferred to human primary ECs.
resultsTreatment with PERK inhibitor versus vehicle control accelerated re-endothelialization in denuded arteries. PERK-specific silencing in the denuded arterial wall (mainly SMCs) also enhanced re-endothelialization compared to scrambled shRNA control. In vitro, while medium transfer from PDGF-activated SMCs impaired EC viability and increased the mRNA levels of dysfunctional EC markers, either PERK inhibition or silencing in donor SMCs mitigated these EC changes. Furthermore, CXCL10, a paracrine cytokine detrimental to ECs, was increased by PDGF activation and decreased after PERK inhibition or silencing in SMCs.
conclusionsAttenuating PERK activity pharmacologically or genetically provides an approach to accelerating post-angioplasty re-endothelialization in rats. The mechanism may involve paracrine factors regulated by PERK in SMCs that impact neighboring ECs. This study rationalizes future development of PERK-targeted endothelium-friendly vascular interventions.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.