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Abstract: Two sulfated triterpene glycosides, holothurin A1 (HA1) and 24‐dehydroechinoside A (DHEA), isolated from the sea cucumber Pearsonothuria graeffei, are of the holostane type with 18(20)‐lactone and identical carbohydrate chains. DHEA has a side chain 23 (24)‐double bond, while HA1 has a hydroxyl group at C‐21. In this study, we compared the effects of DHEA and HA1 on metastasis in vitro...
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