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Related Concept Videos

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The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
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The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
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Antimicrobial peptide-based materials: opportunities and challenges.

Akhilesh Rai1,2, Rafaela Ferrão1,2, Paulo Palma3,4

  • 1CNC - Centro de Neurociências e Biologia Celular, CIBB - Centro de Inovação em Biomedicina e Biotecnologia, Universidade de Coimbra, Coimbra, Portugal. akhilesh.rai@uc.pt.

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This summary is machine-generated.

Antimicrobial peptides (AMPs) show promise against multidrug-resistant bacteria but face limitations. AMP-based materials, such as nanoparticles and hydrogels, enhance therapeutic efficacy and overcome challenges for clinical applications.

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Area of Science:

  • Biomaterials Science
  • Infectious Diseases
  • Drug Delivery

Background:

  • Antimicrobial peptides (AMPs) are potent agents against multidrug-resistant (MDR) bacteria, offering alternatives to conventional antibiotics.
  • Bare AMPs exhibit limited therapeutic potential due to short systemic circulation times and degradation by proteases and alkaline environments.
  • AMP-based materials present a promising strategy to overcome these limitations and enhance AMP efficacy.

Purpose of the Study:

  • To review the preparation and therapeutic potential of various antimicrobial peptide (AMP)-based materials.
  • To explore the applications of AMP-based materials beyond antimicrobial activity, including tissue regeneration, diagnostics, and cancer therapy.
  • To discuss the challenges and future prospects for the clinical commercialization of AMP-based materials.

Main Methods:

  • Literature review of AMP-based materials including nanoparticles, hydrogels, electrospun fibers, dressings, and implants.
  • Analysis of therapeutic applications in various disease models and infection sites (brain, eyes, skin, etc.).
  • Discussion of AMP-based materials for non-antimicrobial applications like bone/skin regeneration, infection prevention, bacterial imaging, cancer therapy, and gene delivery.

Main Results:

  • AMP-based materials demonstrate superior therapeutic efficacy compared to bare AMPs in diverse disease models.
  • These materials effectively treat microbial infections across multiple body sites, including the brain, eyes, skin, and gastrointestinal tract.
  • AMP-based materials show potential in advanced applications such as tissue regeneration, implant-associated infection prevention, bacterial detection, cancer therapy, and gene delivery.

Conclusions:

  • AMP-based materials offer a viable strategy to enhance the therapeutic efficacy of AMPs and overcome their inherent limitations.
  • These advanced materials hold significant promise for a wide range of clinical applications, from treating infections to regenerative medicine.
  • Addressing current challenges in their development and commercialization is crucial for realizing the full clinical potential of AMP-based materials.