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Updated: Aug 9, 2026

Production and Testing of Antimicrobial Peptides and Their Mimics
Published on: April 10, 2026
Antimicrobial peptides: review of their application in musculoskeletal infections
Hein P Stallmann1, Chris Faber, Arie V Nieuw Amerongen
1Department of Orthopedic Surgery / VU University Medical Center, Amsterdam, The Netherlands.
Abstract:
Antimicrobial resistance is expected to increase the burden of osteomyelitis drastically. The rise in resistant bacterial strains is driving researchers to find new treatment options. As a potential new antibiotic class, antimicrobial peptides (AMPs) combine several attractive intrinsic properties. Their minimal propensity for inducing antimicrobial resistance could be of particular clinical significance. AMPs act as an essential part of the innate immune system and have been identified in virtually all forms of life. These short, positively charged peptides have a combined pore-forming and intracellular killing effect on a broad range of microorganisms. Their reported spectrum of action includes resistant bacterial strains, viruses, and fungi. Moreover, immunomodulating, antitumoric, and angiogenic mechanisms have been reported. We have designed degradable and nondegradable drug-release systems for local treatment with AMPs. In animal models of osteomyelitis, these systems reduced bone infection caused by both resistant and nonresistant strains. The systemic application of several peptides for experimental detection and treatment of bone and soft-tissue infection is also discussed in this review. Radioactive-labeled peptides have accurately discriminated sterile inflammation from active infection in imaging studies. Successful preclinical studies of AMPs indicate that clinical evaluation of these powerful antibiotic agents is in order.
Insights
Antimicrobial peptides (AMPs) show promise for treating osteomyelitis, even resistant strains. Local drug delivery systems effectively reduced bone infections in animal models, suggesting clinical potential.
Area of Science:
- Infectious Diseases
- Biochemistry
- Pharmacology
Background:
- Antimicrobial resistance (AMR) poses a growing threat to osteomyelitis treatment.
- Novel therapeutic strategies are urgently needed to combat resistant bacterial infections.
- Antimicrobial peptides (AMPs) represent a promising new class of antibiotics with unique properties.
Purpose of the Study:
- To review the potential of antimicrobial peptides (AMPs) as a novel therapeutic approach for osteomyelitis.
- To evaluate drug-release systems for local AMP delivery in treating bone infections.
- To discuss the diagnostic and therapeutic applications of AMPs in bone and soft-tissue infections.
Main Methods:
- Design and testing of degradable and nondegradable drug-release systems for AMPs.
- Evaluation of AMP-loaded systems in animal models of osteomyelitis.
- Review of systemic AMP applications, including diagnostic imaging with radioactive-labeled peptides.
Main Results:
- AMP-based drug-release systems effectively reduced bone infections in animal models, targeting both resistant and non-resistant bacterial strains.
- Radioactive-labeled AMPs demonstrated accuracy in differentiating sterile inflammation from active infection in imaging studies.
- Preclinical data support the clinical evaluation of AMPs as potent antimicrobial agents.
Conclusions:
- Antimicrobial peptides offer a potential solution to the increasing challenge of antimicrobial resistance in osteomyelitis.
- Local delivery systems enhance AMP efficacy for bone infections, with promising preclinical results.
- AMPs hold significant potential for both diagnosis and treatment of bone and soft-tissue infections, warranting clinical investigation.
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