Galleria Mellonella
Galleria Mellonella - Related Videos
06:19
Galleria mellonella as an Antimicrobial Screening Model
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Cited by 8 •
2024
This study presents a standardized framework for optimizing G. mellonella infection models for use in preclinical antimicrobial assessment. The application of a G. mellonella model as part of a preclinical antimicrobial development pipeline could decrease the number of ineffective compounds progressing to clinical trials.
13:00
The Insect Galleria mellonella as a Powerful Infection Model to Investigate Bacterial Pathogenesis
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Cited by 287 •
2012
Oral and intra haemocolic infection of larvae of the greater wax moth Galleria mellonella is described. This insect can be used to study virulence factors of entomopathogenic as well as mammalian opportunistic bacteria. Rearing of the insects, methods of infection and examples of in vivo analysis are described.
12:30
Use of Galleria mellonella as a Model Organism to Study Legionella pneumophila Infection
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Cited by 108 •
2013
The larva of the wax moth Galleria mellonella was recently established as an in vivo model to study Legionella pneumophila infection. Here, we demonstrate fundamental techniques to characterize the pathogenesis of Legionella in the larvae, including inoculation, measurement of bacterial virulence and replication as well as extraction and analysis of infected hemocytes.
09:23
Use of the Invertebrate Galleria mellonella as an Infection Model to Study the Mycobacterium tuberculosis Complex
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Cited by 10 •
2019
Galleria mellonella was recently established as a reproducible, cheap, and ethically acceptable infection model for the Mycobacterium tuberculosis complex. Here we describe and demonstrate the steps taken to establish successful infection of G. mellonella with bioluminescent Mycobacterium bovis BCG lux.
07:33
The Galleria mellonella Waxworm Infection Model for Disseminated Candidiasis
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Cited by 9 •
2018
Galleria mellonella serves as an invertebrate model for disseminated candidiasis. Here, we detail the infection protocol and provide supporting data for the model's effectiveness.
FAQs
Within the larvae, hemocytes provide cellular defense by carrying out phagocytosis, the uptake of invading microbes. Melanization adds an innate tissue response, while antimicrobial peptides supply another defense mechanism. Studying these components together helps investigators determine whether a pathogen mainly alters cellular activity, tissue responses, or soluble antimicrobial defenses, giving greater immunological context than a single endpoint.
Controlled pathogen introduction gives an experiment a defined exposure point, making responses easier to relate to infection rather than to uncertain environmental contact. Researchers can then compare larval survival, tissue changes, and immune responses after inoculation. This design is particularly useful when examining differences in microbial virulence or evaluating whether an antimicrobial therapy changes the course of infection.
Survival provides an overall measure of disease severity or treatment benefit, whereas tissue changes can reveal visible effects of infection in the larvae. Immune responses, including phagocytosis, melanization, and antimicrobial peptide production, add mechanistic context. Considering these outcomes together helps distinguish whether an intervention improves host defense, limits tissue damage, or simply prolongs survival.
A typical study begins by maintaining larvae under conditions compatible with the human pathogen being examined, followed by controlled inoculation. Investigators then monitor survival and inspect tissue changes or immune responses. This sequence links the experimental exposure to measurable host and infection outcomes, allowing the same model to support both pathogenesis studies and antimicrobial treatment assessments.
Maintaining larvae at temperatures compatible with human pathogens helps preserve the relevance of infection experiments involving those microbes. It also supports controlled observation of host responses under conditions suitable for the pathogen. This feature strengthens the model’s value for studying infection biology and testing antimicrobial therapies before more resource-intensive studies.
The model is especially useful when researchers need relatively rapid and economical screening of microbial virulence or antimicrobial therapies. Investigators can introduce pathogens under controlled conditions and assess survival, tissue changes, and immune responses. These measurements support comparisons among microbes or treatments and help prioritize questions for more detailed host-pathogen studies.
Because the larvae are an invertebrate system with an innate immune system, findings primarily illuminate innate defense, microbial virulence, and treatment response. The model therefore complements rather than replaces mammalian studies. Its greatest contextual value is to provide relatively rapid, economical evidence that can guide questions and conditions for subsequent mammalian investigation.