Review surveys the ocean's medicine cabinet, from cancer-fighting alkaloids to antiviral compounds
Why the ocean is such a rich source of drug candidates
Covering more than 70 percent of the Earth’s surface, the ocean hosts coral reefs, deep‑sea habitats, and mangroves that support extraordinary biodiversity. These ecosystems have adapted to harsh conditions, turning marine organisms into a rich yet still underutilized source of compounds for medicine — a field known as marine pharmacognosy.
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Why the Ocean Is Such a Rich Source of Drug Candidates
Marine pharmacognosy is based on a simple principle: organisms living in extreme or highly competitive environments, such as coral reefs or the deep sea, often evolve unique chemical compounds to survive. These compounds may help them deter predators, compete for space, or withstand pressure and low light. The review notes that sponges, algae, corals, tunicates, and marine microorganisms are particularly promising sources for drug discovery, provided that research methods avoid damaging the ecosystems from which they are drawn.
How the Review Was Put Together
The authors conducted their analysis using peer‑reviewed literature on marine bioactive compounds from three major databases: Scopus, PubMed, and Web of Science. Rather than offering a broad overview, the review focuses on modern discovery tools such as high‑throughput screening (which enables rapid testing of large numbers of compounds for biological activity), computational biology, and genomics. It also examines two case studies — trabectedin and vidarabine — while addressing broader issues of compound production, sustainability, and conservation.
Compounds Already Making a Difference
The authors conducted their analysis using peer‑reviewed literature on marine bioactive compounds from three major databases: Scopus, PubMed, and Web of Science. Rather than offering a broad overview, the review focuses on modern discovery tools such as high‑throughput screening (which enables rapid testing of large numbers of compounds for biological activity), computational biology, and genomics. It also examines two case studies — trabectedin and vidarabine — while addressing broader issues of compound production, sustainability, and conservation.
The Tools Driving Discovery, and the Barriers Slowing It Down
According to the review, high‑throughput screening and synthetic biology are enabling researchers to identify and reproduce promising marine compounds more efficiently, while genomic sequencing provides new insights into the organisms that produce them. Nonetheless, significant challenges remain: many compounds occur naturally only in minute quantities, making extraction costly and impractical, and overharvesting poses serious sustainability and conservation risks.
Balancing Discovery With Conservation
The review emphasizes that sustainable sourcing — whether through synthetic production or environmentally responsible harvesting — must be central to the future of marine pharmacognosy. It highlights deep‑sea exploration and green chemistry as potential strategies for discovering new compounds while addressing urgent public health challenges such as antibiotic resistance. The overarching message is that drug discovery and marine biodiversity protection need not be in conflict; with advanced technology and genuine conservation commitments, both goals can be pursued together.
About the Authors
The corresponding author of the review, Raj Kumari Kataria, is affiliated with the Department of Pharmacy at I.T.S College of Pharmacy, Murad Nagar, Ghaziabad, Uttar Pradesh, India. Co‑author Somesh Saxena is associated with the Raj Kumar Goel Institute of Technology (RKGIT), Ghaziabad, Uttar Pradesh, India.
Read the published article here: https://bit.ly/3VAGbVi
Article title: Marine Pharmacognosy: Potential Sources of Novel Bioactive Molecules – A Review
Authors: Shivani Verma, Somesh Saxena and Raj Kumari Kataria*
Journal: Letters in Functional Foods
DOI: https://doi.org/10.2174/0126669390434564260510195601
Journal
Letters in Functional Foods
Method of Research
Literature review
Article Title
Marine Pharmacognosy: Potential Sources of Novel Bioactive Molecules –A Review
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