Pharmacognosy Marine Pharmacognosy

Bioactive compounds from marine organisms

Topic overview

Start with the big picture

Marine natural products span structural families such as macrolides, depsipeptides, polyketide-peptide hybrids, terpenoids, and alkaloids. Sponges, tunicates, bryozoans, cyanobacteria, mollusks, and algae are among the producer groups; symbiotic microbes can contribute to biosynthesis. Examples of marine-derived medicines illustrate varied targets and therapeutic uses, while preclinical leads point to additional discovery potential. Ecological competition may help explain the potency and selectivity of some compounds, but potent marine toxins make safety assessment essential. The topic also introduces approaches to supply bottlenecks, including aquaculture, total or semisynthesis, and heterologous expression of biosynthetic clusters. Together, these themes show how marine chemistry informs drug discovery and its practical constraints.

Learning objectives

What you'll learn

  • Describe structural features that distinguish many marine metabolites.
  • Identify major marine producer groups and the role of symbiotic microbes.
  • Summarize selected marine-derived medicines and their mechanisms or uses.
  • Recognize preclinical leads, safety concerns, and strategies for compound supply.
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