Promotion of metastasis by a specific complex of coagulation factors may be independent of fibrin formation
1988

Coagulation Factors and Metastasis

Sample size: 50 publication Evidence: high

Author Information

Author(s): P. McCulloch, W.D. George

Primary Institution: University Department of Surgery, Western Infirmary, Glasgow, UK.

Hypothesis

Does the injection of specific coagulation factors enhance metastasis independent of fibrin formation?

Conclusion

The study found that certain coagulation factors significantly enhance metastasis in a rat model, regardless of fibrin formation.

Supporting Evidence

  • Injection of factors II, VII, IX and X elevated the median number of surface pulmonary seedlings per animal to 182.
  • Defibrination had no significant effects on pulmonary seeding.
  • Factor VII alone did not significantly affect pulmonary seeding.

Takeaway

Injecting specific blood factors into rats made cancer spread more, even when they couldn't make clots.

Methodology

The study involved injecting Mtln3 rat mammary carcinoma cells into Fischer 344 rats and measuring pulmonary seeding after treatment with various coagulation factors.

Limitations

Some animals died from anesthesia, affecting the sample size in certain groups.

Participant Demographics

Female Fischer 344 rats, 6-8 weeks old, mean weight 140g.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.001

Want to read the original?

Access the complete publication on the publisher's website

View Original Publication