A Mouse Tumor Model of Surgical Stress to Explore the Mechanisms of Postoperative Immunosuppression and Evaluate Novel Perioperative Immunotherapies

作者： Lee-Hwa Tai1, Christiano Tanese de Souza1, Shalini Sahi1, Jiqing Zhang1,2,4, Almohanad A Alkayyal1,3,5, Abhirami Anu Ananth1,3, Rebecca A.C. Auer1,6 1Centre for Innovative Cancer Research,Ottawa Hospital Research Institute, 2Department of Cellular and Molecular Medicine,University of Ottawa, 3Department of Biochemistry, Microbiology and Immunology,University of Ottawa, 4Department of Neurosurgery,The Second Hospital of Shandong University, 5Department of Medical Laboratory Technology,University of Tabuk, 6Department of Surgery,Ottawa General Hospital

简介：

Overview

This study utilizes a mouse tumor model to investigate the impact of postoperative immune suppression on metastatic disease and to assess the efficacy of immunostimulatory therapies during the perioperative period.

Key Study Components

Area of Science

• Neuroscience
• Oncology
• Immunology

Background

• Postoperative immune suppression can enhance metastatic disease.
• Understanding the immune response during surgical stress is crucial.
• Immunotherapy may mitigate adverse effects of surgery on metastasis.
• This study employs a mouse model to explore these dynamics.

Purpose of Study

• To evaluate the role of immune therapy in reducing metastasis during the perioperative period.
• To assess how surgical stress influences immune function and cancer progression.
• To provide insights into potential therapeutic strategies in surgical oncology.

Methods Used

• Injection of tumor cells into the mouse mammary fat pad to establish a primary tumor.
• Administration of immune therapy prior to surgical intervention.
• Resection of the primary tumor followed by nephrectomy in a subset of mice.
• Quantification of metastatic lung tumor nodules post-surgery.

Main Results

• Immune therapy showed potential in reducing postoperative metastatic disease.
• Post-surgical immune suppression was linked to increased metastasis.
• The mouse model effectively demonstrated the impact of surgical stress on cancer progression.
• Findings support further investigation into perioperative immune therapies.

Conclusions

• Perioperative immune therapy may be beneficial in surgical oncology.
• Understanding immune dynamics during surgery can inform treatment strategies.
• This model provides a framework for future research on surgical stress and cancer.

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