Related Experiment Video
Updated: May 28, 2025
Generating a Murine Orthotopic Metastatic Breast Cancer Model and Performing Murine Radical Mastectomy
Published on: November 29, 2018
Standardization of a Model of Vertebral Metastasis of Breast Cancer in CD1/Nu/Nu Mice
Gervith Reyes Soto1, Vladimir Miranda-Galván2, Norma Uribe-Uribe3
1Neurosurgical Oncology, Mexico National Cancer Institute, Tlalpan, MEX.
Introduction:
Breast cancer is the leading cause of cancer-related death in Mexico, with high mortality associated with spinal bone metastasis. We propose to standardize a murine model of bone metastasis to study and understand the tumor microenvironment.
Materials And Methods:
An experimental, prospective, longitudinal study was conducted using 18 CD1/Nu/Nu 30g nude mice. Two cell lines, MCF-7 and 4T1, were inoculated, clinical follow-up was performed, and biopsy samples were obtained for histopathological evaluation.
Results:
Histopathological evaluation of models inoculated with the MCF-7 cell line showed no tumor development, while inoculation with the 4T1 cell line resulted in tumor development, as evidenced by PET-CT and histopathology, using 5,000 and 1,000 cells, respectively.
Conclusions:
The use of this model is proposed for studying the clinical, molecular, and prognostic aspects of breast cancer progression by inoculating 1,000 cells of the 4T1 cell line.
