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Coumarinolignans with Reactive Oxygen Species (ROS) and NF-κB Inhibitory Activities from the Roots of Waltheria indica.

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).

SUBMITTER: Liu F 

PROVIDER: S-EPMC9147481 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature

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Coumarinolignans with Reactive Oxygen Species (ROS) and NF-κB Inhibitory Activities from the Roots of <i>Waltheria indica</i>.

Liu Feifei F   Mallick Sudipta S   O'Donnell Timothy J TJ   Rouzimaimaiti Ruxianguli R   Luo Yuheng Y   Sun Rui R   Wall Marisa M   Wongwiwatthananukit Supakit S   Date Abhijit A   Silva Dane Kaohelani DK   Williams Philip G PG   Chang Leng Chee LC  

Molecules (Basel, Switzerland) 20220519 10

Seven new coumarinolignans, walthindicins A-F (<b>1a</b>, <b>1b</b>, <b>2</b>-<b>5</b>, <b>7</b>), along with five known analogs (<b>6</b>, <b>8</b>-<b>11</b>), were isolated from the roots of <i>Waltheria indica</i>. 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 c  ...[more]

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