The New Tech Offers Treatment Against Drug-Resistant Bacteria in Under A Week's Time.

The New Tech Offers Treatment Against Drug-Resistant Bacteria in Under A Week's Time.

The Most of the antibiotics aren’t specific enough to target only infectious bacteria without also destroying the body’s good bacteria. Our technology, however, uses noninfectious versions of multidrug-resistant bacteria to create highly specific molecules.

The pathogen of interest, these PNA therapeutics may avoid the harm that current antibiotics pose to the body’s good bacteria. Why it matters Bacteria’s adaptation to survive current antibiotics, or antibiotic resistance, is on the rise.

Medicine’s current arsenal of treatments mostly consist of naturally occurring antibiotics that were isolated more than 30 years ago. Discovery of new antibiotics in nature has stagnated while bacteria continue to evolve and evade current treatments.

And even if scientists were to find a new natural antibiotic, research shows that bacteria will begin to develop resistance within as little as 10 years, leaving us in the same predicament as before.

The New types of therapies need to be considered for a post-antibiotic era, a time when our arsenal of antibiotics is no longer effective.

system that can target specific bacteria and be continuously modified based on emerging resistance patterns, doctors would no longer have to rely on chance discoveries. Treatments can adapt with bacteria.

Anew technique my colleagues and I developed that can kill deadly, multidrug-resistant bacteria in real-time could be used to generate targeted therapies that replace traditional, increasingly ineffective antibiotics.

The bacteria follow the same basic genetic process that all organisms do: DNA, which contains instructions on how an organism will look and function, is copied into an intermediate form called RNA that can be translated into proteins and other molecules the organism can use.

The technique we developed at the Chatterjee Lab at the University of Colorado Boulder uses a synthetic version of RNA called PNA, or peptide nucleic acid, to disrupt this basic process in bacteria. Our PNA molecule clings to the bacterial RNA, blocking it from carrying out its job.

This molecule is a perfect match to bacterial RNA, it binds very tightly to the RNA and resists degradation.

This means that it can not only escape the bacteria’s error detection processes but also prevent that RNA from being translated into proteins and other useful biological molecules.

This impediment can be lethal to the bacteria.

Our study, which we recently published in Communications Biology, demonstrates the therapeutic potential of a technique that can design, synthesize and test PNA treatments in under a week.

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