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Updated: May 24, 2026

Identification of Hemolytic and Phospholipase Activity in Crude Extracts from Sea Anemones by Straightforward Bioassays
Published on: March 29, 2022
Sea-originated cytotoxic substances
Norihito Maru1, Daisuke Uemura
1Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Japan.
Abstract:
Cancer accounted for huge number of deaths, which represents about 13% of all deaths worldwide, and the number of the deaths due to cancer is increasing. Natural products and their synthetic analogs are widely used as antitumor drugs. As represented by these drugs, many anticancer drugs originated from cytotoxic compounds. Marine natural products are a gold mine of strong bioactive compounds with unique structures created in evolution of organisms over hundred million years. However, in the field of drug discovery, most studies have focused on plant essences and bacterial metabolites, and candidate compounds from marine origin are still remaining relatively unexplored.
Insights
Marine natural products offer a rich source of potential anticancer drugs, yet remain largely unexplored compared to terrestrial sources. Further research into these unique compounds could yield novel treatments for cancer.
Area of Science:
- Marine Biology
- Pharmacology
- Drug Discovery
Background:
- Cancer is a leading cause of global mortality, with increasing death rates worldwide.
- Natural products and their synthetic derivatives are crucial sources for developing antitumor drugs.
- Many existing anticancer drugs are derived from cytotoxic compounds.
Purpose of the Study:
- To highlight the potential of marine natural products in anticancer drug discovery.
- To emphasize the under-exploration of marine-derived compounds in contrast to plant and bacterial sources.
Main Methods:
- Literature review on natural products as anticancer agents.
- Comparative analysis of research focus on marine versus terrestrial natural products for drug discovery.
Main Results:
- Marine organisms have evolved unique bioactive compounds over millions of years.
- Research in drug discovery has predominantly focused on plant and bacterial metabolites.
- Marine natural products are a largely untapped resource for novel anticancer drug candidates.
Conclusions:
- Marine natural products represent a significant, underexplored reservoir for novel anticancer drug discovery.
- Increased focus on marine-derived compounds is warranted to expand the pipeline of antitumor therapies.
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