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JoVE Journal
Immunology and Infection
Un modelo de ratón para evaluar respuesta inmune innata a la infección por Staphylococcus aur...
Un modelo de ratón para evaluar respuesta inmune innata a la infección por Staphylococcus aur...
JoVE Journal
Immunology and Infection
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JoVE Journal Immunology and Infection
A Mouse Model to Assess Innate Immune Response to Staphylococcus aureus Infection

Un modelo de ratón para evaluar respuesta inmune innata a la infección por Staphylococcus aureus

Full Text
13,556 Views
09:15 min
February 28, 2019

DOI: 10.3791/59015-v

Leif S. Anderson1, Mack B. Reynolds1, Kathryn R. Rivara1, Lloyd S. Miller2, Scott I. Simon1

1Department of Biomedical Engineering,University of California Davis, 2Department of Dermatology,Johns Hopkins University School of Medicine

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Please note that some of the translations on this page are AI generated. Click here for the English version.

Overview

This study presents a method for real-time monitoring of the innate immune response to skin wounds and Staphylococcus aureus infections in mice. By utilizing LysM-EGFP mice with fluorescent neutrophils, the research enhances our understanding of infection dynamics and potential treatment strategies.

Key Study Components

Area of Science

  • Immunology
  • Infectious Diseases
  • Mouse Models

Background

  • Understanding the immune response to bacterial infections is crucial for developing effective treatments.
  • Staphylococcus aureus is a common pathogen that poses significant health risks.
  • Real-time monitoring techniques can provide valuable insights into infection mechanisms.
  • Fluorescent labeling of neutrophils allows for detailed observation of immune responses.

Purpose of Study

  • To investigate the innate immune response to cutaneous wounding.
  • To assess the response to Staphylococcus aureus infection in a live mouse model.
  • To compare immune responses in different mouse strains.

Methods Used

  • Real-time imaging of neutrophil responses using LysM-EGFP mice.
  • Inoculation of skin wounds with Staphylococcus aureus.
  • Monitoring bacterial burden and neutrophil activity simultaneously.
  • Longitudinal measurements throughout the duration of infection.

Main Results

  • Real-time detection of neutrophil responses was successfully achieved.
  • Differences in immune responses were observed between mouse strains.
  • The technique allowed for the assessment of bacterial persistence.
  • Insights gained could inform treatment strategies for infections.

Conclusions

  • This approach enhances understanding of the immune response to infections.
  • Real-time monitoring can lead to improved treatment strategies.
  • Future research may build on these findings to combat bacterial infections.

Frequently Asked Questions

What is the significance of using LysM-EGFP mice?
LysM-EGFP mice allow for visualization of neutrophils, providing insights into immune responses during infections.
How does this study contribute to infection treatment strategies?
By understanding the immune response dynamics, researchers can develop more effective treatment approaches for bacterial infections.
What are the advantages of real-time monitoring in this research?
Real-time monitoring enables longitudinal assessment of immune responses and bacterial burden, offering a comprehensive view of infection progression.
What role do neutrophils play in the immune response?
Neutrophils are key players in the innate immune response, acting as the first line of defense against infections.
What is Staphylococcus aureus?
Staphylococcus aureus is a common bacterium that can cause a range of infections, from minor skin infections to more serious conditions.
How can this research impact future studies?
The findings can inform future research on immune responses and the development of new therapeutic strategies against bacterial infections.

Se describe un enfoque para la detección en tiempo real de la respuesta inmune innata a heridas cutáneas y la infección de Staphylococcus aureus de los ratones. Por que comparan LysM-EGFP ratones (que poseen fluorescentes neutrófilos) con un LysM-EGFP mestizas cepa de ratón inmunodeficiente, avanzar en nuestra comprensión de la infección y el desarrollo de enfoques para combatir la infección.

Las técnicas que monitorean la carga bacteriana y un neutrófilo responden simultáneamente pueden proporcionar información sobre los mecanismos de persistencia de Staph aureus y la eficacia de las estrategias de tratamiento. La principal ventaja de esta técnica es que múltiples parámetros se pueden medir longitudinalmente en un huésped vivo durante toda la duración de la infección. Es fundamental mostrar dónde colocar la herida en un dorso de ratón, cómo extirpar la piel y cómo inocular la herida con Staph aureus.

Comience descongelando la bioluminiscencia Estafilocoa aureus cepa de interés de almacenamiento negativo de 80 grados Celsius en hielo. Antes de rayar el cultivo en un plato de agar sangre bovino del 5%. Para una incubación nocturna a 37 grados centígrados.

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