|
1
|
Li Q, Liu JZ, Yang J, Wang YD, Yang SX, Niu SB, Ding G. Biological activities and mass fragmentation pathways of meroterpenoid cochlioquinones from plant pathogenic fungus Bipolaris sorokiniana. Food Chem 2024; 437:137853. [PMID: 37918162 DOI: 10.1016/j.foodchem.2023.137853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 10/09/2023] [Accepted: 10/23/2023] [Indexed: 11/04/2023]
Abstract
Cochlioquinones are a member of meroterpenoids that partially possessed phenolic hydroxyls with potential antioxidant activities. This study investigated the mass fragmentation pathways, antioxidant, cytotoxic, and phytotoxic activities of cochlioquinone analogs. The mass fragmentation pathways of cochlioquinones (1-7) were firstly analyzed using UPLC-Q-TOF-MS/MS, in which Retro Diels-Alder reaction, neutral loss, and McLafferty rearrangement were the main cleavage patterns. Compound 8 and 9 (a unique new analog) were then isolated in target. Cochlioquinones (4-6, 9) displayed strong antioxidant activities for DPPH radical scavenging assay as the first antioxidant effects report. In addition, 1-9 exhibited cytotoxic activities against B16 cells (IC50 from 1.91 to 12.33 μM) and Hep G2 cells (IC50 from 3.21 to 77.15 μM), and 5, 7, and 8 showed phytotoxic activities against foxtail leaves. These biological activities imply that cochlioquinones can be as antioxidant agents for food additives or bioactive molecules for cancer drugs and pesticides.
Collapse
Affiliation(s)
- Qi Li
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Jian-Zi Liu
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Jian Yang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijng 100700, China
| | - Yan-Duo Wang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Sheng-Xiang Yang
- College of Chemical and Materials Engineering, Zhejiang A&F University, Zhejiang, China.
| | - Shu-Bin Niu
- Department of Pharmacy, Beijing City University, Beijing 100083, China
| | - Gang Ding
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
| |
Collapse
|
|
2
|
Malouf DM, Richardson AD, L’Heureux SJ, McDonough EA, Henry AM, Sheng JY, Medhurst EA, Canales AE, Fleischer CJ, Cecil TB, Thurman SE, McMullen CC, Costanzo PJ, Bercovici DA. Ylidenenorbornadiene Carboxylates: Experimental Kinetic Analysis of a Nucleophile-Induced Fragmentation Reaction. Org Lett 2022; 24:2793-2797. [DOI: 10.1021/acs.orglett.2c00630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David M. Malouf
- Department of Chemistry and Biochemistry, California Polytechnic State University, 1 Grand Avenue, San Luis Obispo, California 93407, United States
| | - Abigail D. Richardson
- Department of Chemistry and Biochemistry, California Polytechnic State University, 1 Grand Avenue, San Luis Obispo, California 93407, United States
| | - Scott J. L’Heureux
- Department of Chemistry and Biochemistry, California Polytechnic State University, 1 Grand Avenue, San Luis Obispo, California 93407, United States
| | - Elizabeth A. McDonough
- Department of Chemistry and Biochemistry, California Polytechnic State University, 1 Grand Avenue, San Luis Obispo, California 93407, United States
| | - Ava M. Henry
- Department of Chemistry and Biochemistry, California Polytechnic State University, 1 Grand Avenue, San Luis Obispo, California 93407, United States
| | - Jerry Y. Sheng
- Department of Chemistry and Biochemistry, California Polytechnic State University, 1 Grand Avenue, San Luis Obispo, California 93407, United States
| | - Erica A. Medhurst
- Department of Chemistry and Biochemistry, California Polytechnic State University, 1 Grand Avenue, San Luis Obispo, California 93407, United States
| | - Angel E. Canales
- Department of Chemistry and Biochemistry, California Polytechnic State University, 1 Grand Avenue, San Luis Obispo, California 93407, United States
| | - Cameron J. Fleischer
- Department of Chemistry and Biochemistry, California Polytechnic State University, 1 Grand Avenue, San Luis Obispo, California 93407, United States
| | - Ty B. Cecil
- Department of Chemistry and Biochemistry, California Polytechnic State University, 1 Grand Avenue, San Luis Obispo, California 93407, United States
| | - Spencer E. Thurman
- Department of Chemistry and Biochemistry, California Polytechnic State University, 1 Grand Avenue, San Luis Obispo, California 93407, United States
| | - Cameron C. McMullen
- Department of Chemistry and Biochemistry, California Polytechnic State University, 1 Grand Avenue, San Luis Obispo, California 93407, United States
| | - Philip J. Costanzo
- Department of Chemistry and Biochemistry, California Polytechnic State University, 1 Grand Avenue, San Luis Obispo, California 93407, United States
| | - Daniel A. Bercovici
- Department of Chemistry and Biochemistry, California Polytechnic State University, 1 Grand Avenue, San Luis Obispo, California 93407, United States
| |
Collapse
|
|
3
|
Platts K, Hota M, Blencowe C, Blencowe A. Exploring the versatility of pentafulvene–maleimide cycloaddition as a ligation strategy: buffer and pH effects. Org Biomol Chem 2022; 20:8538-8544. [DOI: 10.1039/d2ob01453j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Pentafulvene–maleimide cycloadditions proceed efficiently in a range of biological buffers of varying pH, highlighting the potential of this strategy as an efficient ligation strategy for the preparation of conjugates.
Collapse
Affiliation(s)
- Kirsten Platts
- Applied Chemistry and Translational Biomaterials Group, Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia
| | - Manisha Hota
- Applied Chemistry and Translational Biomaterials Group, Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia
| | - Chris Blencowe
- Fleet Bioprocessing, Hartley Whitney, Hampshire, RG27 8DH, UK
| | - Anton Blencowe
- Applied Chemistry and Translational Biomaterials Group, Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia
| |
Collapse
|