Related Experiment Video
Updated: Jul 24, 2026
07:43
Intracarotid Cancer Cell Injection to Produce Mouse Models of Brain Metastasis
Published on: February 8, 2017
28.3K
Development of a Glymphatic Pathway-based Rat Model for Cancer Metastasis from Brain to Lung
Abhijith Sreejith1, Haijun Xiao2, Iylan Howson1
1Chemical, Biological, and Bioengineering Department, College of Engineering, North Carolina Agricultural and Technical State University, Greensboro, NC, U.S.A.
In Vivo (Athens, Greece)
|February 27, 2026
Summary
This study developed a new rat model for brain-to-lung metastasis, showing tumor cells spread from the central nervous system to the lungs. This model aids research into rare cancer dissemination routes.
Area of Science:
- Oncology
- Neuroscience
- Metastasis Research
Background:
- Brain-to-lung metastasis is a rare but significant clinical event.
- Current models do not adequately replicate CNS-driven metastasis.
- Cerebrospinal fluid and glymphatic pathways may be involved in cancer spread.
Purpose of the Study:
- To develop a reproducible rat model for studying brain-to-lung metastasis.
- To investigate tumor cell dissemination from the central nervous system to peripheral organs.
- To establish a platform for exploring novel metastatic mechanisms.
Main Methods:
- Intrathecal injection of A549-LUC human lung adenocarcinoma cells in nude rats.
- Utilized *in vivo* imaging (IVIS) to track tumor localization and spread.
- Confirmed tumor presence in brain and lung tissues via post-mortem staining.
Main Results:
- Demonstrated successful tumor cell dissemination from the CNS to the lungs.
- Observed asymmetric lung metastasis, with greater involvement of the right lung.
- Established a median survival of 36 days in the model.
Conclusions:
- The intrathecal model provides a viable platform for studying brain-to-lung metastasis.
- This model facilitates stepwise investigation of CNS-driven cancer spread.
- The model supports preclinical testing of therapies, such as glymphatic drug delivery.
