ArticleNitric oxide : biology and chemistry2015
Peptide-stimulated angiogenesis: Role of lung endothelial caveolar signaling and nitric oxide.
Article in Nitric oxide : biology and chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed, 1 citations in OpenAlex.
- A Nitric Oxide-Based STING Agonist Nanoadjuvant With ICD-Derived Membrane Antigens Unleashes Robust Antitumor Immunity.Exploration (Beijing, China) · 2026Article
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2 authors at 2 institutions in 1 country.
Funding
Abstract
Endothelial nitric oxide (NO) synthase (eNOS)-derived NO plays a critical role in the modulation of angiogenesis in the pulmonary vasculature. We recently reported that an eleven amino acid (SSWRRKRKESS) cell penetrating synthetic peptide (P1) activates caveolar signaling, caveloae/eNOS dissociation, and enhance NO production in lung endothelial cells (EC). This study examines whether P1 promote angiogenesis via modulation of caveolar signaling and the level of NO generation in EC and pulmonary artery (PA) segments. P1-enhanced tube formation and cell sprouting were abolished by caveolae disruptor Filipin (FIL) in EC and PA, respectively. P1 enhanced eNOS activity and angiogenesis were attenuated by inhibition of eNOS as well as PLCγ-1, PKC-α but not PI3K-mediated caveolar signaling in intact EC and/or PA. P1 failed to enhance the catalytic activity of eNOS and angiogenesis in caveolae disrupted EC by FIL. Lower (0.01 mM) concentration of NOC-18 enhanced angiogenesis without inhibition of eNOS activity whereas higher concentration of NOC-18 (1.0 mM) inhibited eNOS activity and angiogenesis in EC. Inhibition of eNOS by l-NAME in the presence of P1 resulted in near total loss of tube formation in EC. Although P1 enhanced angiogenesis mimicked only by lower concentrations of NO generated by NOC-18, this response is independent of caveolar signaling/integrity. These results suggest that P1-enhanced angiogenesis is regulated by dynamic process involving caveolar signaling-mediated increased eNOS/NO activity or by the direct exposure to NOC-18 generating only physiologic range of NO independent of caveolae in lung EC and PA segments.
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