ArticleJournal of molecular neuroscience : MN2016
Low-Dose Endothelial Monocyte-Activating Polypeptide-II Induces Blood-Tumor Barrier Opening Via the cAMP/PKA/Rac1 Pathway.
Article in Journal of molecular neuroscience : MN, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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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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Who cites it
3 citing papers in PubMed, 4 citations in OpenAlex.
- Biosynthetic CircRNA_001160 induced by PTBP1 regulates the permeability of BTB via the CircRNA_001160/miR-195-5p/ETV1 axis.Cell death & disease · 2019Article
- MiR-429 Regulated by Endothelial Monocyte Activating Polypeptide-II (EMAP-II) Influences Blood-Tumor Barrier Permeability by Inhibiting the Expressions of ZO-1, Occludin and Claudin-5.Frontiers in molecular neuroscience · 2018Article
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Previous studies have demonstrated that low-dose endothelial monocyte-activating polypeptide-II (EMAP-II) induces blood-tumor barrier (BTB) hyperpermeability via both paracellular and transcellular pathways. In a recent study, we revealed that cyclic adenosine monophosphate (cAMP)/protein kinase A (PKA)-dependent signaling pathway is involved in EMAP-II-induced BTB hyperpermeability. This study further investigated the exact mechanisms through which the cAMP/PKA-dependent signaling pathway affects EMAP-II-induced BTB hyperpermeability. In an in vitro BTB model, low-dose EMAP-II (0.05 nM) induced a significant decrease in Rac1 activity in rat brain microvascular endothelial cells (RBMECs). Pretreatment with forskolin to elevate intracellular cAMP concentration completely blocked EMAP-II-induced inactivation of Rac1. Besides, pretreatment with 6Bnz-cAMP to activate PKA partially attenuated EMAP-II-induced Rac1 inactivation. Moreover, 6Bnz-cAMP pretreatment significantly diminished EMAP-II-induced changes in BTB permeability, myosin light chain (MLC) phosphorylation, expression and distribution of ZO-1, and actin cytoskeleton arrangement in RBMECs. These effects of 6Bnz-cAMP were completely blocked in the presence of NSC-23766 (the specific inhibitor of Rac1). In conclusion, this study demonstrates that low-dose EMAP-II induces BTB hyperpermeability via the cAMP/PKA/Rac1 signaling pathway.
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