Lignans with NADPH Oxidase 2 (NOX2)-inhibitory Activity from the Fruits of Schisandra chinensis
Natural Product Sciences
;
: 59-65, 2018.
Article
in English
| WPRIM
| ID: wpr-741595
ABSTRACT
An isoform of NADPH oxidase (NOX), NOX2 is a superoxide-generating enzyme involved in diverse pathophysiological events. Although its potential as a therapeutic target has been validated, there is no clinically available inhibitor. Herein, NOX2-inhibitory activity was screened with the constituents isolated from Schisandra chinensis, which has been reported to have antioxidant and reactive oxygen species (ROS)-scavenging effects. Among the partitions prepared from crude methanolic extract, a chloroform-soluble partition showed the highest NOX2-inhibitory activity in PLB-985 cell-based NOX2 assay. A total of twenty nine compounds (1 – 29) were identified from the chloroform fraction, including two first isolated compounds; dimethyl-malate (25) and 2-(2-hydroxyacetyl) furan (27) from this plants. Of these constituents, two compounds (gomisin T, and pregomisin) exhibited an NOX2-inhibitory effect with the IC₅₀ of 9.4 ± 3.6, and 62.9 ± 11.3 µM, respectively. They are confirmed not to be nonspecific superoxide scavengers in a counter assay using a xanthine-xanthine oxidase system. These findings suggest the potential application of gomisin T (6) and other constituents of S. chinensis to inhibit NOX2.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Oxidoreductases
/
Chloroform
/
Reactive Oxygen Species
/
Lignans
/
Superoxides
/
NADPH Oxidases
/
Schisandra
/
Methanol
/
Fruit
/
NADP
Type of study:
Prognostic study
Language:
English
Journal:
Natural Product Sciences
Year:
2018
Type:
Article
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