{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:22:06Z","timestamp":1760145726034,"version":"build-2065373602"},"reference-count":44,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2024,8,30]],"date-time":"2024-08-30T00:00:00Z","timestamp":1724976000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003716","name":"KBSI internal research programs","doi-asserted-by":"publisher","award":["T39632","C030130","C140130","C130000","A439112"],"award-info":[{"award-number":["T39632","C030130","C140130","C130000","A439112"]}],"id":[{"id":"10.13039\/501100003716","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pharmaceutics"],"abstract":"<jats:p>Biliverdin IX\u03b2 reductase (BLVRB) has emerged as a promising therapeutic target for thrombocytopenia due to its involvement in reactive oxygen species (ROS) mechanisms. During the pursuit of inhibitors targeting BLVRB, olsalazine (OSA) became apparent as one of the most potent candidates. However, the direct application of OSA as a BLVRB inhibitor faces challenges, as it is prone to degradation into 5-aminosalicylic acid through cleavage of the diazenyl bond by abundant azoreductase (AzoR) enzymes in gut microbiota and eukaryotic cells. To overcome this obstacle, we devised olsalkene (OSK), an inhibitor where the diazenyl bond in OSA has been substituted with an alkene bond. OSK not only matches the efficacy of OSA but also demonstrates improved stability against degradation by AzoR, presenting a promising solution to this limitation. Furthermore, we have found that both OSK and OSA inhibit BLVRB, regardless of the presence of nicotinamide adenine dinucleotide phosphate, unlike other known inhibitors. This discovery opens new avenues for investigating the roles of BLVRB in blood disorders, including thrombocytopenia.<\/jats:p>","DOI":"10.3390\/pharmaceutics16091148","type":"journal-article","created":{"date-parts":[[2024,8,30]],"date-time":"2024-08-30T06:46:29Z","timestamp":1725000389000},"page":"1148","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["An Innovative Inhibitor with a New Chemical Moiety Aimed at Biliverdin IX\u03b2 Reductase for Thrombocytopenia and Resilient against Cellular Degradation"],"prefix":"10.3390","volume":"16","author":[{"given":"Hoe-Myung","family":"Jung","sequence":"first","affiliation":[{"name":"Korea Basic Science Institute, 162 Yeongudanji-Ro, Ochang-Eup, Cheongju-Si 28119, Republic of Korea"},{"name":"Department of Bio-Analytical Science, University of Science & Technology, Daejoen 34113, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jung-Hye","family":"Ha","sequence":"additional","affiliation":[{"name":"New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), 80 Cheombok-ro, Dong-gu, Daegu 41061, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5995-4667","authenticated-orcid":false,"given":"Mark Vincent C.","family":"dela Cerna","sequence":"additional","affiliation":[{"name":"Department of Biochemistry, Chemistry and Physics, Georgia Southern University, 11935 Abercorn Street, Savannah, GA 31419, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joseph A.","family":"Burlison","sequence":"additional","affiliation":[{"name":"Department of Medicine, James Graham Brown Cancer Center, University of Louisville, 505 S. Hancock St., Louisville, KY 40202, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3800-0394","authenticated-orcid":false,"given":"Joonhyeok","family":"Choi","sequence":"additional","affiliation":[{"name":"Korea Basic Science Institute, 162 Yeongudanji-Ro, Ochang-Eup, Cheongju-Si 28119, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bo-Ram","family":"Kim","sequence":"additional","affiliation":[{"name":"Korea Basic Science Institute, 162 Yeongudanji-Ro, Ochang-Eup, Cheongju-Si 28119, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5916-0912","authenticated-orcid":false,"given":"Jeong Kyu","family":"Bang","sequence":"additional","affiliation":[{"name":"Korea Basic Science Institute, 162 Yeongudanji-Ro, Ochang-Eup, Cheongju-Si 28119, Republic of Korea"},{"name":"Department of Bio-Analytical Science, University of Science & Technology, Daejoen 34113, Republic of Korea"},{"name":"Dandicure Inc., Ochang-Eup, Cheongju-Si 28119, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kyoung-Seok","family":"Ryu","sequence":"additional","affiliation":[{"name":"Korea Basic Science Institute, 162 Yeongudanji-Ro, Ochang-Eup, Cheongju-Si 28119, Republic of Korea"},{"name":"Department of Bio-Analytical Science, University of Science & Technology, Daejoen 34113, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Donghan","family":"Lee","sequence":"additional","affiliation":[{"name":"Korea Basic Science Institute, 162 Yeongudanji-Ro, Ochang-Eup, Cheongju-Si 28119, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,8,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"3348","DOI":"10.1172\/JCI26891","article-title":"The biogenesis of platelets from megakaryocyte proplatelets","volume":"115","author":"Patel","year":"2005","journal-title":"J. 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