Computationally Assisted Discovery and Assignment of a Highly Strained and PANC-1 Selective Alkaloid from Alaska's...

Area of Science:

• Marine Natural Products Chemistry
• Drug Discovery
• Organic Chemistry

Background:

• Marine sponges are a rich source of novel bioactive compounds.
• Deep-sea exploration facilitates the discovery of unique organisms and chemical entities.
• Pancreatic cancer remains a significant challenge in oncology, necessitating new therapeutic agents.

Purpose of the Study:

• To discover and characterize new bioactive compounds from marine organisms.
• To investigate the potential of novel alkaloids as anticancer agents.
• To elucidate the structure of a newly identified pyrroloiminoquinone alkaloid.

Main Methods:

• Utilized molecular ion networking (MoIN) for molecular identification.
• Employed mass spectrometry and nuclear magnetic resonance for structural analysis.
• Applied computationally assisted structure elucidation tools for precise determination.

Main Results:

• Discovered aleutianamine, the first member of a new class of pyrroloiminoquinone alkaloids.
• Aleutianamine possesses a highly strained, multibridged ring system.
• Demonstrated potent and selective cytotoxicity against pancreatic (PANC-1) and colon (HCT-116) cancer cell lines.

Conclusions:

• Aleutianamine is a novel marine natural product with significant anticancer potential.
• The compound's unique structure and selective bioactivity make it a promising candidate for preclinical development.
• This discovery highlights the importance of deep-sea exploration for identifying new therapeutic leads.