Nano-antimicrobial peptides (Nano-AMPs) to combat resistant gram-negative bacteria.

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Infectious Diseases

Background:

• Antimicrobial resistance (AMR) is a global health crisis, rendering traditional antibiotics ineffective against multidrug-resistant (MDR) pathogens.
• Antimicrobial peptides (AMPs) offer a promising alternative due to their broad-spectrum activity and unique mechanisms, but face challenges like degradation and poor bioavailability.
• Nanocarrier systems are emerging as a solution to overcome AMP limitations, improving targeted delivery and therapeutic outcomes.

Purpose of the Study:

• To review the therapeutic potential of nano-antimicrobial peptides (Nano-AMPs) against WHO-prioritized multidrug-resistant pathogens.
• To analyze the role of various nanocarrier systems in enhancing AMP efficacy and overcoming delivery challenges.
• To explore the synergistic effects of Nano-AMPs and nanocarriers for combating Gram-negative infections.

Main Methods:

• Literature review of recent advancements in nanocarrier-based AMP delivery systems.
• Analysis of different nanocarrier types, including lipid-based, polymeric, and inorganic nanoparticles.
• Examination of synergistic strategies and potential applications against multidrug-resistant pathogens.

Main Results:

• Nanocarriers significantly improve AMP bioavailability, solubility, and targeted delivery, while enabling controlled release.
• Lipid-based, polymeric, and inorganic nanocarriers demonstrate distinct advantages in enhancing AMP efficacy against MDR pathogens.
• Synergistic approaches, particularly with inorganic nanoparticles, show potential for combating challenging Gram-negative infections.

Conclusions:

• Nano-AMPs delivered via nanocarriers represent a transformative approach to combatting AMR, offering next-generation antibiotic potential.
• Further interdisciplinary research, including machine learning and clinical trials, is crucial to optimize nanocarrier design and validate efficacy and safety.
• Developing effective Nano-AMPs is critical for addressing the urgent threat of multidrug-resistant infections worldwide.