Metastasis of murine mammary tumour lines from the mammary gland and ectopic sites
1984

Study of Tumor Metastasis in Mice

Sample size: 66 publication Evidence: moderate

Author Information

Author(s): E.N. Unemori, N. Ways, D.R. Pitelka

Primary Institution: University of California, Berkeley

Hypothesis

The study investigates the impact of transplant site on the metastatic behavior of murine mammary tumors.

Conclusion

The research highlights the significance of the mammary gland as a transplant site, showing that tumors exhibit different metastatic behaviors depending on their location.

Supporting Evidence

  • Five tumor lines were developed and characterized through eight generations.
  • Metastatic frequencies varied significantly between tumors grown in the mammary gland and those grown subcutaneously.
  • Histological analysis showed differences in tumor organization based on the transplant site.

Takeaway

This study shows that where you put a tumor in a mouse can change how it spreads to other parts of the body.

Methodology

The study involved serial transplantation of murine mammary tumors into the mammary gland and subcutaneous sites, followed by assessment of metastatic spread.

Limitations

The study is limited to a few tumor lines and may not represent all types of tumors.

Participant Demographics

Young virgin and multiparous female BALB/cfC3H/Crgl mice were used.

Statistical Information

P-Value

p<0.005

Statistical Significance

p<0.005

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