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Mahgoub S, Hashad N, Ali S, Ibrahim R, Said AM, Moharram FA, Mady M. Polyphenolic Profile of Callistemon viminalis Aerial Parts: Antioxidant, Anticancer and In Silico 5-LOX Inhibitory Evaluations. Molecules 2021; 26:molecules26092481. [PMID: 33923148 PMCID: PMC8123052 DOI: 10.3390/molecules26092481] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/17/2021] [Accepted: 04/20/2021] [Indexed: 12/24/2022] Open
Abstract
Five new compounds viz kaempferol 3-O-(4″-galloyl)-β-d-glucopyranosyl-(1‴→6″)-O-β-d-glucopyranoside (1), kaempferol 3-O-β-d-mannuronopyranoside (2), kaempferol 3-O-β-d-mannopyranoside (3), quercetin 3-O-β-d-mannuronopyranoside (4), 2, 3 (S)- hexahydroxydiphenoyl]-d-glucose (5) along with fifteen known compounds were isolated from 80% aqueous methanol extract (AME) of C. viminalis. AME and compounds exerted similar or better antioxidant activity to ascorbic acid using DPPH, O2−, and NO inhibition methods. In addition, compounds 16, 4, and 7 showed cytotoxic activity against MCF-7 cell lines while 3, 7 and 16 exhibited strong activity against HepG2. An in silico analysis using molecular docking for polyphenolic compounds 2, 3, 7, 16 and 17 against human stable 5-LOX was performed and compared to that of ascorbic acid and quercetin. The binding mode as well as the enzyme-inhibitor interactions were evaluated. All compounds occupied the 5-LOX active site and showed binding affinity greater than ascorbic acid or quercetin. The data herein suggest that AME, a source of polyphenols, could be used against oxidative-stress-related disorders.
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Affiliation(s)
- Shahenda Mahgoub
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Helwan University, Ein-Helwan, Helwan, Cairo 11795, Egypt;
- Correspondence: (S.M.); (A.M.S.); (F.A.M.); Tel.: +1716-907-5016 (A.M.S.); +202-2554-160 (F.A.M.)
| | - Nashwa Hashad
- Department of Pharmacognosy, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo 11795, Egypt; (N.H.); (R.I.); (M.M.)
| | - Sahar Ali
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Helwan University, Ein-Helwan, Helwan, Cairo 11795, Egypt;
| | - Reham Ibrahim
- Department of Pharmacognosy, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo 11795, Egypt; (N.H.); (R.I.); (M.M.)
| | - Ahmed M. Said
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Helwan University, Ein-Helwan, Helwan, Cairo 11795, Egypt
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA
- Correspondence: (S.M.); (A.M.S.); (F.A.M.); Tel.: +1716-907-5016 (A.M.S.); +202-2554-160 (F.A.M.)
| | - Fatma A. Moharram
- Department of Pharmacognosy, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo 11795, Egypt; (N.H.); (R.I.); (M.M.)
- Correspondence: (S.M.); (A.M.S.); (F.A.M.); Tel.: +1716-907-5016 (A.M.S.); +202-2554-160 (F.A.M.)
| | - Mohamed Mady
- Department of Pharmacognosy, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo 11795, Egypt; (N.H.); (R.I.); (M.M.)
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