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Related Concept Videos

Antimicrobial Proteins01:23

Antimicrobial Proteins

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Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
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Combined Effects of Drugs: Synergism01:27

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Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
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Surface Membrane Barriers01:18

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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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Related Experiment Video

Updated: Jun 27, 2025

Antimicrobial Peptides Produced by Selective Pressure Incorporation of Non-canonical Amino Acids
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Synergy between Winter Flounder antimicrobial peptides.

Maria Clarke1, Charlotte K Hind2, Philip M Ferguson1

  • 1Institute of Pharmaceutical Science, School of Cancer & Pharmaceutical Science, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London, SE1 9NH UK.

Npj Antimicrobials and Resistance
|April 30, 2024
PubMed
Summary
This summary is machine-generated.

Winter Flounder antimicrobial peptides (AMPs) show synergistic activity against bacteria. Weakly active AMPs enhance potent AMPs, improving therapeutic potential against infections like Acinetobacter baumannii.

Keywords:
AntibioticsComputational modelsPeptidesPharmacodynamics

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Area of Science:

  • Biochemistry
  • Microbiology
  • Immunology

Background:

  • Antimicrobial peptides (AMPs) are investigated as antibiotic alternatives.
  • AMPs are often produced with less active peptides during infection, their function is unclear.

Purpose of the Study:

  • Investigate the synergistic activity of six Winter Flounder (WF) AMPs.
  • Elucidate the mechanisms behind enhanced antimicrobial activity and therapeutic potential.

Main Methods:

  • Tested combinations of six WF AMPs for synergistic bactericidal activity.
  • Analyzed the impact of weakly active AMPs on potent AMPs' membrane interactions.
  • Evaluated therapeutic efficacy in an Acinetobacter baumannii infection model.

Main Results:

  • Two WF AMPs showed potent activity alone; combinations with less active AMPs yielded significant synergy.
  • Weakly active AMPs modulated membrane interactions of potent AMPs, enhancing cooperativity and potency.
  • Demonstrated therapeutic potential in a burn wound infection model.

Conclusions:

  • Synergy among WF AMPs, including weakly active ones, enhances bactericidal potency and therapeutic efficacy.
  • This emergent behavior may explain the evolutionary advantage of producing peptide families.
  • Synergistic AMP combinations offer promising avenues for developing novel antimicrobial therapies.