{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,13]],"date-time":"2026-04-13T05:35:12Z","timestamp":1776058512860,"version":"3.50.1"},"reference-count":52,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2023,9,7]],"date-time":"2023-09-07T00:00:00Z","timestamp":1694044800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Swiss National Science Foundation","award":["FN-310030_176158"],"award-info":[{"award-number":["FN-310030_176158"]}]},{"name":"Novartis Foundation","award":["FN-310030_176158"],"award-info":[{"award-number":["FN-310030_176158"]}]},{"name":"Fondation pour la recherche en chirurgie thoracique et vasculaire","award":["FN-310030_176158"],"award-info":[{"award-number":["FN-310030_176158"]}]},{"name":"Union des Soci\u00e9t\u00e9s Suisses des Maladies Vasculaires","award":["FN-310030_176158"],"award-info":[{"award-number":["FN-310030_176158"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Antioxidants"],"abstract":"<jats:p>The saphenous vein is the conduit of choice for bypass grafting. Unfortunately, the hemodynamic stress associated with the arterial environment of the bypass vein graft leads to the development of intimal hyperplasia (IH), an excessive cellular growth and collagen deposition that results in restenosis and secondary graft occlusion. Hydrogen sulfide (H2S) is a ubiquitous redox-modifying gasotransmitter that inhibits IH. H2S is produced via the reverse trans-sulfuration pathway by three enzymes: cystathionine \u03b3-lyase (CSE), cystathionine \u03b2-synthase (CBS) and 3-mercaptopyruvate sulfurtransferase (3-MST). However, the expression and regulation of these enzymes in the human vasculature remains unclear. Here, we investigated the expression of CSE, CBS and 3-MST in segments of native human saphenous vein and large arteries. Furthermore, we evaluated the regulation of these enzymes in vein segments cultured under static, venous (7 mmHg pressure) or arterial (100 mmHg pressure) pressure. CSE was expressed in the media, neointima and intima of the vessels and was negatively regulated by arterial shear stress. Adenoviral-mediated CSE overexpression or RNA interference-mediated CSE knock-down revealed that CSE inhibited primary human VSMC migration but not proliferation. We propose that high shear stress in arteriovenous bypass grafts inhibits CSE expression in both the media and endothelium, which may contribute to increased VSMC migration in the context of IH.<\/jats:p>","DOI":"10.3390\/antiox12091731","type":"journal-article","created":{"date-parts":[[2023,9,7]],"date-time":"2023-09-07T09:56:36Z","timestamp":1694080596000},"page":"1731","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Cystathionine Gamma Lyase Is Regulated by Flow and Controls Smooth Muscle Migration in Human Saphenous Vein"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-1029-4932","authenticated-orcid":false,"given":"Shuang","family":"Zhao","sequence":"first","affiliation":[{"name":"Department of Vascular Surgery, Lausanne University Hospital, 1005 Lausanne, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C\u00e9line","family":"Deslarzes-Dubuis","sequence":"additional","affiliation":[{"name":"Department of Vascular Surgery, Lausanne University Hospital, 1005 Lausanne, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Severine","family":"Urfer","sequence":"additional","affiliation":[{"name":"Department of Vascular Surgery, Lausanne University Hospital, 1005 Lausanne, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Martine","family":"Lambelet","sequence":"additional","affiliation":[{"name":"Department of Vascular Surgery, Lausanne University Hospital, 1005 Lausanne, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S\u00e9bastien","family":"D\u00e9glise","sequence":"additional","affiliation":[{"name":"Department of Vascular Surgery, Lausanne University Hospital, 1005 Lausanne, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6528-679X","authenticated-orcid":false,"given":"Florent","family":"Allagnat","sequence":"additional","affiliation":[{"name":"Department of Vascular Surgery, Lausanne University Hospital, 1005 Lausanne, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,9,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"108157","DOI":"10.1016\/j.pharmthera.2022.108157","article-title":"Pharmacological Prevention of Intimal Hyperplasia: A State-of-the-Art Review","volume":"235","author":"Melnik","year":"2022","journal-title":"Pharmacol. 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