Related Experiment Video
Updated: Jun 8, 2026
Galleria mellonella as an Antimicrobial Screening Model
Published on: October 11, 2024
Galleria mellonella are resistant to Pneumocystis murina infection
Beth Burgwyn Fuchs1, Lisa R Bishop, Joseph A Kovacs
1Division of Infectious Diseases, Massachusetts General Hospital, Gray-Jackson 504, 55 Fruit Street, Boston, MA 02114, USA. hfuchs@partners.org
Abstract:
Studying Pneumocystis has proven to be a challenge from the perspective of propagating a significant amount of the pathogen in a facile manner. The study of several fungal pathogens has been aided by the use of invertebrate model hosts. Our efforts to infect the invertebrate larvae Galleria mellonella with Pneumocystis proved futile since P. murina neither caused disease nor was able to proliferate within G. mellonella. It did, however, show that the pathogen could be rapidly cleared from the host.
Insights
Researchers found that the fungal pathogen Pneumocystis murina could not infect or proliferate in the invertebrate model host Galleria mellonella. However, the study demonstrated that G. mellonella could rapidly clear the Pneumocystis pathogen.
Area of Science:
- Medical Mycology
- Infectious Diseases
- Pathogen Propagation
Background:
- Studying Pneumocystis presents challenges in pathogen propagation.
- Invertebrate models have been useful for studying other fungal pathogens.
Purpose of the Study:
- To investigate the utility of Galleria mellonella as a model host for Pneumocystis.
- To determine if Pneumocystis murina can infect and proliferate in G. mellonella larvae.
Main Methods:
- Infection of Galleria mellonella larvae with Pneumocystis murina.
- Monitoring for disease development and pathogen proliferation within the host.
Main Results:
- Pneumocystis murina did not cause disease in G. mellonella.
- P. murina was unable to proliferate within G. mellonella.
- G. mellonella demonstrated rapid clearance of the Pneumocystis pathogen.
Conclusions:
- Galleria mellonella is not a suitable host for studying Pneumocystis infection or proliferation.
- The invertebrate model G. mellonella can rapidly clear Pneumocystis, suggesting potential immune mechanisms.
