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Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation
Published on: October 31, 2019
Bile acid derivatives from a sponge-associated bacterium Psychrobacter sp
Huayue Li1, Pramod B Shinde, Hye Ja Lee
1College of Pharmacy, Pusan National University, Busan 609-735, Korea.
Archives of Pharmacal Research
|June 27, 2009
Summary
Researchers discovered a new bile acid derivative from marine bacteria. This compound and others showed anti-inflammatory and antibacterial properties, with one exhibiting mild anti-cancer activity.
Area of Science:
- Marine microbiology
- Natural product chemistry
- Pharmacology
Background:
- Marine sponge-associated bacteria are a source of novel bioactive compounds.
- Psychrobacter sp. is known to produce diverse metabolites.
Purpose of the Study:
- To isolate and characterize bioactive metabolites from Psychrobacter sp.
- To evaluate the anti-inflammatory, antibacterial, and cytotoxic activities of isolated compounds.
Main Methods:
- Bioactivity-guided fractionation of bacterial extracts.
- Structure elucidation using NMR (1H, 13C, HMBC, HSQC, COSY) and MS spectroscopy.
- In vitro assays for nitric oxide (NO) and interleukin-6 (IL-6) inhibition, antibacterial activity, and cytotoxicity against cancer cell lines.
Main Results:
- A new bile acid derivative (1) was isolated and characterized.
- Compound 1 showed moderate suppression of NO and IL-6 production without significant cytotoxicity.
- Compounds 2-5 and 7 displayed selective inhibitory activity against human pathogenic bacteria.
- Compound 7 exhibited mild cytotoxicity against several human solid tumor cell lines.
Conclusions:
- Marine bacteria Psychrobacter sp. yielded a novel bile acid derivative with anti-inflammatory potential.
- Isolated compounds possess significant antibacterial and moderate anti-cancer properties.
- This study highlights the potential of marine bacteria as a source for drug discovery.
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