548-19-6

Isoginkgetin is a biflavonoid that has been found in G. biloba and is an inhibitor of pre-mRNA splicing. Isoginkgetin (33 μM) reduces the activity of an mRNA-dependent luciferase reporter by 5-fold, shifts the composition of total RNA extract from predominantly mRNA to pre-mRNA, and arrests cell growth in HEK293 cells. Isoginkgetin (10 μM) suppresses mouse lymphocyte proliferation induced by concanavalin A (Con A; Item No. 14951) and LPS by approximately 87 and 90%, respectively. It also suppresses arachidonic acid release induced by phorbol 12-myristate 13-acetate (PMA; Item No. 10008014) and the calcium ionophore A23187 (Item No. 11016) by 32.5 and 48.4%, respectively, in rat peritoneal macrophages when used at a concentration of 10 μM. Isoginkgetin (5-20 μM) reduces matrix metalloproteinase-9 (MMP-9) activity, expression, and mRNA levels in and decreases cell invasion by HT1080 fibrosarcoma cells in a concentration-dependent manner.

ChEBI: A biflavonoid resulting from the formal oxidative dimerisation between position 8 of one molecule of 5,7-dihydroxy-4'-methoxyflavone and the 3' position of another. Found in the leaves of Ginkgo biloba, it is a potent inhibitor of matrix metal oproteinase 9 (MMP-9).

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