Engineered biological nanofactories trigger quorum sensing response in targeted bacteria.

Area of Science:

• Synthetic biology
• Microbiology
• Bacterial communication

Background:

• Biological nanofactories are engineered systems with modules for targeting, sensing, and synthesizing molecules.
• Bacterial communication, known as quorum sensing, regulates crucial functions like biofilm formation and virulence.
• Current quorum sensing manipulation strategies are limited.

Purpose of the Study:

• To design and assemble a novel nanofactory capable of inducing a quorum sensing response.
• To demonstrate the nanofactory's ability to trigger bacterial communication in the absence of native quorum molecules.
• To explore the potential of these nanofactories as a new class of antimicrobials.

Main Methods:

• Constructed a nanofactory comprising an antibody for targeting and a fusion protein for quorum molecule synthesis.
• Utilized antibody-mediated targeting to bind the nanofactory to specific bacterial populations.
• Introduced the nanofactory to co-cultures of bacteria to observe induced quorum sensing and inter-population communication.

Main Results:

• Successfully assembled a nanofactory that triggers quorum sensing in target bacteria.
• Demonstrated selective targeting and induction of quorum sensing by the nanofactory.
• Showed that nanofactories can initiate communication between previously non-communicating bacterial populations.
• Confirmed quorum sensing induction in the absence of native quorum-sensing molecules.

Conclusions:

• Developed a synthetic biological tool to artificially control bacterial communication.
• The engineered nanofactory effectively triggers quorum sensing and mediates inter-bacterial dialogue.
• This technology holds promise for developing novel antimicrobial therapies that disrupt bacterial communication networks.