1
|
Bihud NV, Rasol NE, Imran S, Awang K, Ahmad FB, Mai CW, Leong CO, Cordell GA, Ismail NH. Goniolanceolatins A-H, Cytotoxic Bis-styryllactones from Goniothalamus lanceolatus. JOURNAL OF NATURAL PRODUCTS 2019; 82:2430-2442. [PMID: 31433181 DOI: 10.1021/acs.jnatprod.8b01067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Eight new bis-styryllactones, goniolanceolatins A-H (1-8), possessing a rare α,β-unsaturated δ-lactone moiety with a (6S)-configuration, were isolated from the CH2Cl2 extract of the stembark and roots of Goniothalamus lanceolatus Miq., a plant endemic to Malaysia. Absolute structures were established through extensive 1D- and 2D-NMR data analysis, in combination with electronic dichroism (ECD) data. All of the isolates were evaluated for their cytotoxicity against human lung and colorectal cancer cell lines. Compounds 2 and 4 showed cytotoxicity, with IC50 values ranging from 2.3 to 4.2 μM, and were inactive toward human noncancerous lung and colorectal cells. Compounds 1, 3, 6, 7, and 8 showed moderate to weak cytotoxicity. Docking studies of compounds 2 and 4 showed that they bind with EGFR tyrosine kinase and cyclin-dependent kinase 2 through hydrogen bonding interactions with the important amino acids, including Lys721, Met769, Asn818, Arg157, Ile10, and Glu12.
Collapse
Affiliation(s)
- Nur V Bihud
- Atta-ur-Rahman Institute for Natural Product Discovery , Universiti Teknologi MARA Selangor Branch, Puncak Alam Campus , 42300 Bandar Puncak Alam , Selangor Malaysia
| | - Nurulfazlina E Rasol
- Atta-ur-Rahman Institute for Natural Product Discovery , Universiti Teknologi MARA Selangor Branch, Puncak Alam Campus , 42300 Bandar Puncak Alam , Selangor Malaysia
| | - Syahrul Imran
- Atta-ur-Rahman Institute for Natural Product Discovery , Universiti Teknologi MARA Selangor Branch, Puncak Alam Campus , 42300 Bandar Puncak Alam , Selangor Malaysia
| | - Khalijah Awang
- Department of Chemistry, Faculty of Science , University Malaya , 50603 Kuala Lumpur , Malaysia
| | - Fasihuddin B Ahmad
- Department of Chemistry, Faculty of Resource Science and Technology , Universiti Malaysia Sarawak , 94300 Kota Semarahan , Sarawak , Malaysia
| | - Chun-Wai Mai
- School of Pharmacy , International Medical University , Jalan Jalil Perkasa 19, Bukit Jalil , 57000 Bukit Jalil, Kuala Lumpur , Malaysia
| | - Chee-Onn Leong
- School of Pharmacy , International Medical University , Jalan Jalil Perkasa 19, Bukit Jalil , 57000 Bukit Jalil, Kuala Lumpur , Malaysia
| | | | - Nor Hadiani Ismail
- Atta-ur-Rahman Institute for Natural Product Discovery , Universiti Teknologi MARA Selangor Branch, Puncak Alam Campus , 42300 Bandar Puncak Alam , Selangor Malaysia
| |
Collapse
|