1
|
Kailass K, Casalena D, Jenane L, McEdwards G, Auld DS, Sadovski O, Kaye EG, Hudson E, Nettleton D, Currie MA, Beharry AA. Tight-Binding Small-Molecule Carboxylesterase 2 Inhibitors Reduce Intracellular Irinotecan Activation. J Med Chem 2024; 67:2019-2030. [PMID: 38265364 DOI: 10.1021/acs.jmedchem.3c01850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
As the primary enzyme responsible for the activatable conversion of Irinotecan (CPT-11) to SN-38, carboxylesterase 2 (CES2) is a significant predictive biomarker toward CPT-11-based treatments for pancreatic ductal adenocarcinoma (PDAC). High SN-38 levels from high CES2 activity lead to harmful effects, including life-threatening diarrhea. While alternate strategies have been explored, CES2 inhibition presents an effective strategy to directly alter the pharmacokinetics of CPT-11 conversion, ultimately controlling the amount of SN-38 produced. To address this, we conducted a high-throughput screening to discover 18 small-molecule CES2 inhibitors. The inhibitors are validated by dose-response and counter-screening and 16 of these inhibitors demonstrate selectivity for CES2. These 16 inhibitors inhibit CES2 in cells, indicating cell permeability, and they show inhibition of CPT-11 conversion with the purified enzyme. The top five inhibitors prohibited cell death mediated by CPT-11 when preincubated in PDAC cells. Three of these inhibitors displayed a tight-binding mechanism of action with a strong binding affinity.
Collapse
Affiliation(s)
- Karishma Kailass
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Ontario, Canada L5L 1C6
| | - Dominick Casalena
- Novartis Institutes for Biomedical Research, Cambridge, Massachusetts 02139, United States
| | - Lina Jenane
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Ontario, Canada L5L 1C6
| | - Gregor McEdwards
- Department of Biology, University of Toronto Mississauga, Mississauga, Ontario, Canada, L5L 1C6
| | - Douglas S Auld
- Novartis Institutes for Biomedical Research, Cambridge, Massachusetts 02139, United States
| | - Oleg Sadovski
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Ontario, Canada L5L 1C6
| | - Esther G Kaye
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Ontario, Canada L5L 1C6
| | - Elyse Hudson
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Ontario, Canada L5L 1C6
| | - David Nettleton
- Novartis Institutes for Biomedical Research, Cambridge, Massachusetts 02139, United States
| | - Mark A Currie
- Department of Biology, University of Toronto Mississauga, Mississauga, Ontario, Canada, L5L 1C6
| | - Andrew A Beharry
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Ontario, Canada L5L 1C6
| |
Collapse
|
2
|
Li WS, Lei XP, Yan XT, Qin YY, Chen GY, Li S, Jiang ZP. Hainanxylogranolides A-F: New Limonoids isolated from the seeds of Hainan mangrove plant Xylocarpus granatum. Fitoterapia 2023; 165:105407. [PMID: 36581180 DOI: 10.1016/j.fitote.2022.105407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 12/23/2022] [Accepted: 12/23/2022] [Indexed: 12/27/2022]
Abstract
Six new limonoids, named hainanxylogranolides A-F (1-6), together with nineteen known ones (7-25) were isolated from the seeds of a Hainan mangrove Xylocarpus granatum. The structures of the new compounds were established by extensive NMR spectroscopic data combined with the DFT and TDDFT calculated electronic circular dichroism spectra. Hainanxylogranolide A (1) is the aromatic B-ring limonoid containing a central pyridine ring and a C-17 substituted γ(21)-hydroxybutenolide moiety. Hainanxylogranolide B (2) belongs to the small group of mexicanolides containing a C3-O-C8 bridge, whereas hainanxylogranolides C and D (3 and 4) are mexicanolides comprising a C1-O-C8 bridge. Compounds 9 and 25 posed obvious inhibition effect on the tube formation of HUVECs. There are only about 25% tube-like structures were observed at the concentration of 40.0 μM of compound 25. The antiviral activities of the isolates against herpes simplex virus-1 (HSV-1) and severe fever with thrombocytopenia syndrome virus (SFTSV) were tested in vitro. Compound 23 exhibited moderate anti-SFTSV activity with the IC50 value of 29.58 ± 0.73 μM. This is the first report of anti-angiogenic effect and anti-SFTSV activity of limonoids from the genus Xylocarpus.
Collapse
Affiliation(s)
- Wan-Shan Li
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education and Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Xue-Ping Lei
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital and The Sixth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China
| | - Xin-Tong Yan
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China; Song Li' Academician Workstation of Hainan University (School of Pharmaceutical Sciences), Sanya 572000, China
| | - Yu-Yue Qin
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education and Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Guang-Ying Chen
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education and Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Song Li
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China; Song Li' Academician Workstation of Hainan University (School of Pharmaceutical Sciences), Sanya 572000, China; Hubei Jiangxia Laboratory, Wuhan 430071, China.
| | - Zhong-Ping Jiang
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China.
| |
Collapse
|
3
|
A UHPLC-QTOF-MS/MS method with a superimposed multiple product ion strategy and esterase inhibitor improved sensitivity for the determination of xylocarpin H in rat plasma. J Pharm Biomed Anal 2022; 216:114803. [DOI: 10.1016/j.jpba.2022.114803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 04/11/2022] [Accepted: 04/23/2022] [Indexed: 11/23/2022]
|
4
|
Molecular docking study of xylogranatins binding to glycogen synthase kinase-3β. DIGITAL CHINESE MEDICINE 2022. [DOI: 10.1016/j.dcmed.2022.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|