Powerful New Antibiotic Hidden in Plain Sight
- This ScienceAlert article details teh rediscovery of a potent antibiotic, pre-methylenomycin C lactone, derived from a compound originally discovered 50 years ago.
- * Rediscovery in a Familiar Source: The antibiotic was found within Streptomyces coelicolor, a bacterium extensively studied since the 1950s, making its initial oversight surprising.
- The article highlights the potential of revisiting older compounds and biosynthetic pathways as a source of new antibiotics in the face of growing antibiotic resistance.
Summary of ScienceAlert Article: “Forgotten Antibiotic From Decades Past Could Be a Superbug Killer”
This ScienceAlert article details teh rediscovery of a potent antibiotic, pre-methylenomycin C lactone, derived from a compound originally discovered 50 years ago. Here are the key takeaways:
* Rediscovery in a Familiar Source: The antibiotic was found within Streptomyces coelicolor, a bacterium extensively studied since the 1950s, making its initial oversight surprising.
* Superior Effectiveness: Pre-methylenomycin C lactone is 100 times more effective against Gram-positive bacteria than its precursor,methylenomycin A.
* Targets Drug-Resistant superbugs: It shows strong activity against MRSA (Methicillin-resistant Staphylococcus aureus) and VRE (Vancomycin-resistant Enterococcus), two particularly challenging infections.
* Low Resistance Potential: Crucially, Enterococcus bacteria didn’t develop resistance too the compound even after 28 days of continuous exposure, suggesting long-term effectiveness.
* Discovery Method: Researchers modified the genes responsible for assembling the antibiotic to create and test intermediate compounds, revealing the potent activity of pre-methylenomycin C lactone.
The article highlights the potential of revisiting older compounds and biosynthetic pathways as a source of new antibiotics in the face of growing antibiotic resistance.