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Elbermawi A, Halim AF, Mansour ESS, Ahmad KF, Elsbaey M, Ashour A, Amen Y, El-Gamil MM, Tomofumi M, Shimizu K. Lycium schweinfurthii: new secondary metabolites and their cytotoxic activities. Nat Prod Res 2021; 36:5134-5141. [PMID: 34180314 DOI: 10.1080/14786419.2021.1922902] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Two new compounds, 11S-methoxy-11,12-dihydro phytuberin (2) and 9S-methoxy-benzocyclononan-7-one (6), together with twenty-six known ones were isolated from Lycium schweinfurthii (Solanaceae). Their planar structure was established by extensive spectroscopic analyses. The absolute configuration of compound 6 was determined by time dependent density functional theory calculations (TDDFT). The cytotoxic potential of the isolates was assessed in cultured skin cancer (G-361) and colon cancer (HCT-116 and CaCo-2) cell lines. Certain flavonoids showed the highest cytotoxic activity, with IC50 values ranging from 7.1 to 63.3 µM; meanwhile 5-flurouracil showed IC50 values ranging from 62.4 to >100 µM. All compounds showed minimal toxicity towards normal cells from skin (NHDF-4) and colon (CCD-841), indicating their potential selectivity and safety as cytotoxic candidates.
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Affiliation(s)
- Ahmed Elbermawi
- Department of Pharmacognosy Faculty of Pharmacy, Mansoura University, Mansoura, Egypt.,Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Ahmed F Halim
- Department of Pharmacognosy Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - El-Sayed S Mansour
- Department of Pharmacognosy Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Kadria F Ahmad
- Department of Pharmacognosy Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Marwa Elsbaey
- Department of Pharmacognosy Faculty of Pharmacy, Mansoura University, Mansoura, Egypt.,Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Ahmed Ashour
- Department of Pharmacognosy Faculty of Pharmacy, Mansoura University, Mansoura, Egypt.,Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Yhiya Amen
- Department of Pharmacognosy Faculty of Pharmacy, Mansoura University, Mansoura, Egypt.,Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Mohammed M El-Gamil
- Department of Toxic and Narcotic Drugs, Forensic Medicine, Mansoura Laboratory, Medico-legal Organization, Ministry of Justice, Mansoura, Egypt
| | - Miyamoto Tomofumi
- Department of Natural Products Chemistry, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Kuniyoshi Shimizu
- Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
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