Isolation and Transplantation of Different Aged Murine Thymic Grafts.

Y. Maurice Morillon II; Fatima Manzoor; Bo Wang; Roland Tisch

doi:10.3791/52709

Aislamiento y Trasplante de diferentes Aged murinos tímicos injertos.

JoVE Journal
Immunology and Infection

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JoVE Journal Immunology and Infection

Isolation and Transplantation of Different Aged Murine Thymic Grafts.

Aislamiento y Trasplante de diferentes Aged murinos tímicos injertos.

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05:47 min

May 13, 2015

DOI: 10.3791/52709-v

Y. Maurice Morillon II*¹, Fatima Manzoor*¹, Bo Wang¹, Roland Tisch¹

¹Department of Microbiology and Immunology,University of North Carolina at Chapel Hill

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Overview

This report details a method for transplanting murine thymi from donor mice of varying ages into immunodeficient recipients. This approach facilitates the in vivo analysis of T-cell development and thymic selection events.

Key Study Components

Area of Science

Immunology
Cell Biology
Transplantation Biology

Background

T-cell development occurs in the thymus.
Thymic selection is crucial for establishing a functional T-cell repertoire.
Understanding T-cell ontogeny can provide insights into immune responses.
In vivo models are essential for studying these processes.

Purpose of Study

To model T-cell development and selection in a controlled environment.
To evaluate the impact of donor age on T-cell maturation.
To provide a method for temporal analysis of thymic selection.

Methods Used

Harvesting thymus from donor mice at specific ages.
Surgical implantation of the thymus under the kidney capsule of recipient mice.
Monitoring the reconstitution of the T-cell compartment.
Flow cytometry to evaluate T-cell populations.

Main Results

Successful implantation of donor thymus in recipient mice.
Reconstitution of peripheral T-cell populations observed.
Flow cytometry analysis confirmed T-cell development.
Age of donor influenced the efficiency of T-cell maturation.

Conclusions

This method allows for the study of T-cell development in vivo.
Findings highlight the importance of donor age in T-cell ontogeny.
Future studies can utilize this model to further explore thymic selection.

Frequently Asked Questions

What is the significance of T-cell development?

T-cell development is crucial for establishing a functional immune system capable of responding to pathogens.

How does donor age affect T-cell maturation?

Donor age can influence the efficiency and quality of T-cell maturation, impacting immune responses.

What techniques are used to analyze T-cell populations?

Flow cytometry is commonly used to evaluate and quantify different T-cell populations.

Why use immunodeficient mice as recipients?

Immunodeficient mice provide a controlled environment for studying T-cell development without interference from the host's immune system.

What are the potential applications of this research?

This research can inform strategies for immunotherapy and vaccine development by enhancing our understanding of T-cell biology.

Este informe proporciona una descripción detallada del trasplante de thymi murino de diferentes ratones donantes envejecidos bajo la cápsula renal de receptores de ratones inmunodeficientes. El objetivo de este enfoque es modelar el desarrollo de células T y los eventos de selección tímica in vivo.

El objetivo general de este procedimiento es permitir el análisis in vivo de la selección negativa de células T en un momento específico durante la ontogenia de las células T. Esto se logra cosechando primero el timo de un ratón donante a la edad específica de interés. En el segundo paso, se expone el riñón del ratón deslizante del receptor y se implanta quirúrgicamente el timo del donante debajo de la cápsula renal.

En el paso final, se cierra el destinatario. En última instancia, la reconstitución exitosa del compartimento periférico de las células T puede evaluarse mediante citometría de flujo. Este método permite el estudio temporal de la selección tímica y la producción de células T, proporcionando esencialmente una instantánea de la producción de células T en un momento particular de interés durante el antígeno de células T. Para eliminar el timo de un ratón adulto o recién nacido, comience colocando al animal en posición recostada dorsal sobre una toalla de papel absorbente estéril y rociando el pelo con etanol al 70%.

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