Elenoside, a new cytotoxic drug, with cardiac and extracardiac activity.

Abstract:

:This paper deals with the effects of elenoside, (3-hidroxymethyl-1-methoxy-5,6-methylene-dioxy-4-(3,4-methylenedioxyphenyl)-2-naftoic acid lactone-beta-D-glucoside) an arylnaphthalene lignan with broad spectrum cytotoxicity in a human tumor cell line panel, isolated from Justicia hyssopifolia (Acanthaceae) grown in the Canary Islands (Spain), on isolated cardiac auricle of rabbits, urinary excretion of rats, and on isolated rat ileum. These effects, using a vehicle (propylene glycol-ethanol-plant oil-Tween 80 (40:10:50:2) as a standard, are presented. Elenoside at concentrations of 3.2x10(-4), 6.4 x 10(-4), and 1.2 x 10(-3) M produced an increase in the contraction force of auricles in a concentration-dependent way. At doses of 25 and 50 mg/kg, an antidiuretic effect and a decrease in sodium excretion were observed. Elenoside at concentrations of 3.2 x 10(-4), 6.4 x 10(-4) and 1.2 x 10(-3) M produced an increase in the contraction force of ileum in a concentration-dependent manner. Elenoside produced the concentration dependent inhibition of 86Rb uptake. These results indicate that elenoside has digitalis-like activity similar to mammalian lignans. Moreover, this lignan has an irritant effect on the gastrointestinal tract.

journal_name

Biol Pharm Bull

authors

Navarro E,Alonso SJ,Trujillo J,Jorge E,Pérez C,Hernández-Calzadilla C

doi

10.1248/bpb.25.1013

subject

Has Abstract

pub_date

2002-08-01 00:00:00

pages

1013-7

issue

8

eissn

0918-6158

issn

1347-5215

journal_volume

25

pub_type

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