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- Title
Coumarinolignans with Reactive Oxygen Species (ROS) and NF-κB Inhibitory Activities from the Roots of Waltheria indica.
- Authors
Liu, Feifei; Mallick, Sudipta; O'Donnell, Timothy J.; Rouzimaimaiti, Ruxianguli; Luo, Yuheng; Sun, Rui; Wall, Marisa; Wongwiwatthananukit, Supakit; Date, Abhijit; Silva, Dane Kaohelani; Williams, Philip G.; Chang, Leng Chee
- Abstract
Seven new coumarinolignans, walthindicins A–F (1a, 1b, 2–5, 7), along with five known analogs (6, 8–11), were isolated from the roots of Waltheria indica. The structures of the new compounds are determined by detailed nuclear magnetic resonance (NMR), circular dichroism (CD) with extensive computational support, and mass spectroscopic data interpretation. Compounds were tested for their antioxidant activity in Human Cervical Cancer cells (HeLa cells). Compounds 1a and 6 showed higher reactive oxygen species (ROS) inhibitory activity at 20 μg/mL when compared with other natural compound-based antioxidants such as ascorbic acid. Considering the role of ROS in nuclear-factor kappa B (NF-κB) activation, compounds 1a and 6 were evaluated for NF-κB inhibitory activity and showed a concentration-dependent inhibition in Human Embryonic Kidney 293 cells (Luc-HEK-293).
- Subjects
REACTIVE oxygen species; NUCLEAR magnetic resonance; ANTIOXIDANT testing; VITAMIN C; CIRCULAR dichroism; HELA cells
- Publication
Molecules, 2022, Vol 27, Issue 10, p3270
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules27103270