Cross talk of signals between EGFR and IL-6R through JAK2/STAT3 mediate epithelial–mesenchymal transition in ovarian carcinomas
2009

EGFR and IL-6R Interaction in Ovarian Cancer

Sample size: 58 publication 10 minutes Evidence: moderate

Author Information

Author(s): Colomiere M, Ward A C, Riley C, Trenerry M K, Cameron-Smith D, Findlay J, Ackland L, Ahmed N

Primary Institution: Royal Women's Hospital, Melbourne, Australia

Hypothesis

The study investigates the role of JAK2/STAT3 signaling in EGF-induced epithelial-mesenchymal transition (EMT) in ovarian cancer cells.

Conclusion

The activation of JAK2/STAT3 signaling is crucial for EGF-induced EMT and migration in ovarian cancer cells.

Supporting Evidence

  • EGF treatment significantly increased IL-6 production in ovarian cancer cell lines.
  • JAK2/STAT3 activation was observed in high-grade ovarian carcinomas.
  • Blocking IL-6R inhibited EGF-induced migration in ovarian cancer cells.
  • Pharmacological inhibition of JAK2 blocked EGF-induced EMT phenotypes.

Takeaway

This study shows that a protein called JAK2 helps ovarian cancer cells move and change shape when they are stimulated by a growth factor called EGF.

Methodology

The study used ovarian cancer cell lines and patient tissues to analyze the activation of JAK2 and STAT3 through immunohistochemistry and western blotting.

Potential Biases

Potential bias in the selection of cell lines and patient samples.

Limitations

The study primarily focuses on two ovarian cancer cell lines and may not represent all ovarian cancer types.

Participant Demographics

The study included 58 women with various grades of ovarian tumors, with a mean age of 57 years.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1038/sj.bjc.6604794

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