Establishment of an <em>Ex Vivo</em> Lung Perfusion Rat Model for Translational Insights in Lung Transplantation

Paolo Oliveira; Keiji Yamanashi; Aizhou Wang; Marcelo Cypel

doi:10.3791/65981

Establecimiento de un modelo de rata de perfusión pulmonar ex vivo para obtener informac...

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Establishment of an Ex Vivo Lung Perfusion Rat Model for Translational Insights in Lung Transplantation

Establecimiento de un modelo de rata de perfusión pulmonar ex vivo para obtener información traslacional en el trasplante de pulmón

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05:49 min

September 29, 2023

DOI: 10.3791/65981-v

Paolo Oliveira*^1,3, Keiji Yamanashi*¹, Aizhou Wang¹, Marcelo Cypel^1,2

¹Toronto General Hospital Research Institute,University Health Network, ²Department of Surgery,University of Toronto, ³Departamento de Cardiopneumologia, Instituto do Coração, Faculdade de Medicina HCFMUSP,Universidade de Sao Paulo

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Overview

This study established a haproducible rat EVOP model to investigate ischemia hyperfusion injury and inflammatory signaling. The aim is to evaluate, preserve, and repair lungs ex vivo for improved transplantation outcomes.

Key Study Components

Area of Science

Transplantation biology
Ex vivo lung perfusion
Inflammatory response

Background

Ischemia hyperfusion injury affects donor lung function.
Current models for lung transplantation research are often costly and not reproducible.
EVOP techniques are evolving to enhance donor lung assessment.
Understanding inflammatory profiles is crucial for improving transplantation outcomes.

Purpose of Study

To establish a reliable rat EVOP model.
To investigate the inflammatory profile associated with perfused lungs.
To propagate knowledge about the rat EVOP model for better understanding of biological responses.

Methods Used

Connecting transducers to isolated perfusion organ equipment.
Launching data acquisition software for monitoring.
Filling the EVLP circuit with supplemented steam solution prior to perfusion.
Utilizing the model to test new therapies and improve lung preservation.

Main Results

Established a cost-effective and reproducible rat EVOP model.
Provided insights into the inflammatory signaling during lung perfusion.
Demonstrated the potential for improved donor lung evaluation.
Showed the feasibility of using EVOP for reconditioning donor lungs.

Conclusions

The rat EVOP model is a valuable tool for lung transplantation research.
Understanding inflammatory responses can lead to better transplantation outcomes.
This model can facilitate the testing of new therapies for lung preservation.

Frequently Asked Questions

What is the purpose of the rat EVOP model?

The rat EVOP model is designed to investigate ischemia hyperfusion injury and improve lung transplantation outcomes.

How does the EVOP model contribute to lung transplantation research?

It provides a reproducible and cost-effective method to evaluate and preserve donor lungs ex vivo.

What are the main findings of this study?

The study established a reliable model and highlighted the importance of inflammatory signaling in lung perfusion.

What methods are used in the EVOP model?

Methods include connecting transducers, launching data acquisition software, and filling the EVLP circuit with solution.

Why is understanding inflammatory profiles important?

It helps in improving donor lung evaluation and transplantation outcomes.

What advancements does the EVOP model offer?

It allows for the assessment, reconditioning, and treatment of donor lungs before transplantation.

Aquí, describimos los pasos necesarios para establecer un modelo de EVLP en ratas y mostramos el perfil inflamatorio asociado con los pulmones perfundidos. El objetivo es propagar el conocimiento y las experiencias sobre el modelo EVLP de ratas, permitiendo la comprensión integral de las respuestas biológicas asociadas a esta revolucionaria técnica.

Este estudio estableció un modelo EVOP de rata haproducible para investigar la lesión por hiperfusión por isquemia, la señal inflamatoria y la función del injerto del donante, con el objetivo de evaluar, preservar y reparar los pulmones ex vivo para mejorar los resultados del trasplante. Los desarrollos más recientes incluyen el uso de EVOP para acceder, recondicionar e incluso tratar pulmones de donante antes del trasplante. Nuestro protocolo aborda la necesidad de modelos reproducibles rentables para la investigación traslacional de trasplantes pulmonares.

Nuestros hallazgos proporcionan un modelo fiable de MOEVOP pequeño para probar nuevas terapias y mejorar la evaluación y preservación pulmonar por donante. Para empezar, comprueba que todos los transductores estén conectados al equipo de órgano de perfusión aislado y al sistema de adquisición de datos, y luego lanza el software de adquisición de datos. Antes de la perfusión, llena el circuito de perfusión pulmonar ex vivo o EVLP con 150 mililitros de solución de vapor suplementada.

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