Orthotopic Implantation and Peripheral Immune Cell Monitoring in the II-45 Syngeneic Rat Mesothelioma Model

Chris J. Weir; Amanda L. Hudson; Lyndsay Peters; Viive M. Howell

doi:10.3791/53019

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Medicine

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JoVE Journal Medicine

Orthotopic Implantation and Peripheral Immune Cell Monitoring in the II-45 Syngeneic Rat Mesothelioma Model

在II-45同基因大鼠模型间皮瘤原位移植和外周免疫细胞监视

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09:31 min

October 2, 2015

DOI: 10.3791/53019-v

Chris J. Weir¹, Amanda L. Hudson¹, Lyndsay Peters², Viive M. Howell¹

¹Bill Walsh Translational Cancer Research Laboratory, Kolling Institute of Medical Research,Royal North Shore Hospital, University of Sydney, ²Northern Blood Research Laboratory, Kolling Institute of Medical Research,Royal North Shore Hospital, University of Sydney

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Overview

This study presents the generation of an orthotopic rat model of pleural malignant mesothelioma through the implantation of II-45 mesothelioma cells into the pleural cavity of immune competent rats. Additionally, a flow cytometric method for analyzing seven immune cell subsets from a 25 µl blood sample is described.

Key Study Components

Area of Science

Neuroscience
Oncology
Immunology

Background

Pleural malignant mesothelioma is a challenging cancer to model.
Orthotopic models provide better insights into tumor behavior.
Flow cytometry is a valuable tool for immune cell analysis.
Understanding immune responses in cancer can inform treatment strategies.

Purpose of Study

To develop a reliable rat model for studying pleural malignant mesothelioma.
To establish a method for analyzing immune cell subsets in this model.
To enhance understanding of the tumor microenvironment and immune interactions.

Methods Used

Implantation of II-45 mesothelioma cells into the pleural cavity of rats.
Collection of blood samples for flow cytometric analysis.
Analysis of seven immune cell subsets using flow cytometry.
Evaluation of tumor growth and immune response over time.

Main Results

Successful establishment of an orthotopic rat model of pleural malignant mesothelioma.
Flow cytometry effectively analyzed immune cell subsets from blood samples.
Insights into the immune landscape associated with tumor growth were obtained.
The model can be used for future therapeutic studies.

Conclusions

The developed rat model is a valuable tool for studying pleural malignant mesothelioma.
Flow cytometric analysis provides crucial information on immune responses.
This research contributes to the understanding of cancer immunology.

Frequently Asked Questions

What is pleural malignant mesothelioma?

Pleural malignant mesothelioma is a type of cancer that affects the lining of the lungs and is often associated with asbestos exposure.

Why is an orthotopic model important?

Orthotopic models mimic the natural environment of tumors, providing more accurate insights into tumor behavior and treatment responses.

What is flow cytometry?

Flow cytometry is a technique used to analyze the physical and chemical characteristics of cells or particles in a fluid as they pass through a laser.

How does this study contribute to cancer research?

This study provides a new model for understanding the immune response in pleural malignant mesothelioma, which can aid in developing targeted therapies.

What are immune cell subsets?

Immune cell subsets refer to different types of immune cells that play various roles in the immune response, such as T cells, B cells, and macrophages.

Can this model be used for testing new treatments?

Yes, the established model can be utilized to evaluate the efficacy of new therapeutic strategies for pleural malignant mesothelioma.

胸膜恶性间皮瘤由II-45间皮瘤细胞进入胸膜免疫活性大鼠腔植入的原位大鼠模型的产生提出。甲流式细胞法分析从25微升血样在这些动物7免疫细胞亚群也被描述。