title: Design, synthesis and cytotoxic evaluation of nitric oxide-releasing derivatives of isosteviol.
abstract: Twenty-six novel isosteviol derivatives coupled with two types of nitric oxide (NO) donors (furoxans and NONOates) were synthesized and screened for cytotoxic activities against four human cancer cell lines with sunitinib as the positive control. The results showed that seven furoxan-based derivatives (8a, 8b, 8c, 8d, 8e, 9e, and 9f) exhibited desirable cytotoxic activities, while NONOate-based derivatives displayed poor potency because of unstability. Compared with sunitinib, compounds 8a and 8e were more active on all tested cell lines, especially in HCT116 (8a, IC50= 0.48 ± 0.02 μm; 8e, IC50= 0.94 ± 0.01 μm); compounds 8b and 8d were more potent on HCT116 (IC50= 3.39 ± 0.06 and 3.29 ± 0.03 μm), HepG2 (IC50= 1.05 ± 0.03 and 5.37 ± 0.08 μm), and SW620 (IC50= 1.33 ± 0.02 and 4.11 ± 0.05 μm) cell lines, and 8c exhibited higher activities on HepG2 cells with an IC50= 4.76 ± 0.14 μm. NO-releasing experiment of compounds 8a-e, 17a, 18a, 19a, and 21a reminded us that NO-releasing amount of this series of isosteviol derivatives positively correlates with their cytotoxic activities.
authors.affiliation: Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, China.|Zhenjiang Institute for Drug Control, Zhenjiang, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, China.
authors.forename: Tingting
authors.initials: T
authors.lastname: Wang
authors.affiliation: School of Pharmacy, Nantong University, Nantong, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Ling
authors.affiliation: Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, China.
authors.forename: Na
authors.initials: N
authors.lastname: Bao
authors.affiliation: Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Shi
authors.affiliation: Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, China.
authors.forename: Li
authors.identifier: http://orcid.org/0000-0002-6211-7672
authors.initials: L
authors.lastname: Chen
authors.affiliation: Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, China.
authors.forename: Jianbo
authors.initials: J
authors.lastname: Sun
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology / Q000633:toxicity; D045744:Cell Line, Tumor; D002470:Cell Survival / Q000187:drug effects; D045786:Diterpenes, Kaurane / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology* / Q000633:toxicity; D015195:Drug Design; D004354:Drug Screening Assays, Antitumor; D045325:HCT116 Cells; D056945:Hep G2 Cells; D006801:Humans; D009569:Nitric Oxide / Q000378:metabolism*; D020030:Nitric Oxide Donors / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology / Q000633:toxicity; D013329:Structure-Activity Relationship
chemical_list: D000970:Antineoplastic Agents; D045786:Diterpenes, Kaurane; D020030:Nitric Oxide Donors; C515747:isosteviol; D009569:Nitric Oxide
keywords: NO donors; NO-releasing amount; cytotoxic activities; isosteviol derivatives