PMID- 28134077 OWN - NLM STAT- MEDLINE DCOM- 20170824 LR - 20181202 IS - 0392-856X (Print) IS - 0392-856X (Linking) VI - 35 IP - 3 DP - 2017 May-Jun TI - Dual endothelin receptor antagonists contrast the effects induced by endothelin-1 on cultured human microvascular endothelial cells. PG - 484-493 AB - OBJECTIVES: To evaluate the ability of dual endothelin (ET) receptor antagonists (ETA/ETB -ETA/BRAs) to contrast the ET-1-induced effects on cultured human microvascular endothelial cells (HMVECs). METHODS: Some cultured HMVECs were untreated, or treated with ET-1 (100nM) or transforming growth factor beta1 (TGFbeta1, 10ng/mL) alone for 6 days, in order to induce the endothelial-to-mesenchymal transition (EndoMT). Other cultured HMVECs were pre-treated for 1hr with ETA/BRAs bosentan (10muM) or macitentan (1muM, 10muM) before the stimulation with ET-1 for 6 days. At the end of treatments, a mechanical injury was induced to cultured HMVECs (by scratching the cell monolayer with a sterile tip), and then the cell ability to re-fill the damaged area was determined after 24hrs. EndoMT phenotype markers and monocyte chemoattractant protein-1 (MCP-1) were evaluated by qRT-PCR and Western blotting. Statistical analysis was performed using Mann-Whitney-U non-parametric test. RESULTS: Both ET-1 and TGFbeta1 induced EndoMT and the MCP-1 over-expression in cultured HMVECs, as well as reduced the process of endothelial cell damage repair. Pre-treatment with ETA/BRAs let cultured HMVECs to significantly restore the in vitro damage of the cell monolayer and antagonised the EndoMT process as well as the MCP-1 over-expression (range p<0.05 - p<0.001). Conversely, untreated or TGFbeta1-treated HMVECs were found unaffected by the ETA/BRAs treatments. CONCLUSIONS: The treatment with dual ETA/BRAs seems to partially restore the altered cell function induced by ET-1 in cultured endothelial cells, and might justify their therapeutic efficiency in clinical conditions characterised by increased concentrations of ET-1. FAU - Soldano, Stefano AU - Soldano S AD - Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genova, IRCCS AOU San Martino Hospital, Genoa, Italy. FAU - Paolino, Sabrina AU - Paolino S AD - Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genova, IRCCS AOU San Martino Hospital, Genoa, Italy. FAU - Pizzorni, Carmen AU - Pizzorni C AD - Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genova, IRCCS AOU San Martino Hospital, Genoa, Italy. FAU - Trombetta, Amelia Chiara AU - Trombetta AC AD - Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genova, IRCCS AOU San Martino Hospital, Genoa, Italy. FAU - Montagna, Paola AU - Montagna P AD - Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genova, IRCCS AOU San Martino Hospital, Genoa, Italy. FAU - Brizzolara, Renata AU - Brizzolara R AD - Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genova, IRCCS AOU San Martino Hospital, Genoa, Italy. FAU - Corallo, Claudio AU - Corallo C AD - Department of Medicine, Surgery and Neurosciences, Scleroderma Unit, University of Siena, Italy. FAU - Giordano, Nicola AU - Giordano N AD - Department of Medicine, Surgery and Neurosciences, Scleroderma Unit, University of Siena, Italy. FAU - Sulli, Alberto AU - Sulli A AD - Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genova, IRCCS AOU San Martino Hospital, Genoa, Italy. FAU - Cutolo, Maurizio AU - Cutolo M AD - Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genova, IRCCS AOU San Martino Hospital, Genoa, Italy. mcutolo@unige.it. LA - eng PT - Journal Article DEP - 20170127 PL - Italy TA - Clin Exp Rheumatol JT - Clinical and experimental rheumatology JID - 8308521 RN - 0 (CCL2 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (EDNRB protein, human) RN - 0 (Endothelin A Receptor Antagonists) RN - 0 (Endothelin B Receptor Antagonists) RN - 0 (Endothelin-1) RN - 0 (Pyrimidines) RN - 0 (Receptor, Endothelin A) RN - 0 (Receptor, Endothelin B) RN - 0 (Sulfonamides) RN - 0 (Transforming Growth Factor beta1) RN - Q326023R30 (Bosentan) RN - Z9K9Y9WMVL (macitentan) SB - IM MH - Bosentan MH - Cell Shape/drug effects MH - Cell Survival/drug effects MH - Cells, Cultured MH - Chemokine CCL2/genetics/metabolism MH - Endothelial Cells/*drug effects/metabolism/pathology MH - Endothelin A Receptor Antagonists/*pharmacology MH - Endothelin B Receptor Antagonists/*pharmacology MH - Endothelin-1/*pharmacology MH - Epithelial-Mesenchymal Transition/drug effects MH - Humans MH - Microvessels/*drug effects/metabolism/pathology MH - Myofibroblasts/drug effects/metabolism/pathology MH - Phenotype MH - Pyrimidines/*pharmacology MH - Receptor, Endothelin A/*drug effects/metabolism MH - Receptor, Endothelin B/*drug effects/metabolism MH - Sulfonamides/*pharmacology MH - Time Factors MH - Transforming Growth Factor beta1/pharmacology EDAT- 2017/01/31 06:00 MHDA- 2017/08/25 06:00 CRDT- 2017/01/31 06:00 PHST- 2016/08/11 00:00 [received] PHST- 2016/11/21 00:00 [accepted] PHST- 2017/01/31 06:00 [pubmed] PHST- 2017/08/25 06:00 [medline] PHST- 2017/01/31 06:00 [entrez] AID - 11022 [pii] PST - ppublish SO - Clin Exp Rheumatol. 2017 May-Jun;35(3):484-493. Epub 2017 Jan 27.