A New Method for Isolation of Interstitial Fluid from Human Solid Tumors Applied to Proteomic Analysis of Ovarian Carcinoma Tissue
2011

New Method for Isolating Tumor Fluid from Ovarian Cancer

Sample size: 7 publication 10 minutes Evidence: moderate

Author Information

Author(s): Haslene-Hox Hanne, Oveland Eystein, Berg Kaja C., Kolmannskog Odd, Woie Kathrine, Salvesen Helga B., Tenstad Olav, Wiig Helge

Primary Institution: Department of Biomedicine, University of Bergen, Bergen, Norway

Hypothesis

Can a centrifugation method developed for animals be used to isolate interstitial fluid from human ovarian tumors?

Conclusion

The study successfully developed a technique to isolate undiluted interstitial fluid from human ovarian tumors, revealing a rich source of potential tumor-specific proteins.

Supporting Evidence

  • The isolated fluid had a protein concentration six times higher than that found in patient plasma.
  • The method allowed for the measurement of interstitial fluid colloid osmotic pressure in human tumors for the first time.
  • 769 proteins were identified in the isolated interstitial fluid, indicating a rich source for biomarker discovery.
  • The study demonstrated that the isolated fluid was representative of interstitial fluid based on the concentration of extracellular markers.

Takeaway

Researchers found a way to get fluid from ovarian tumors that can help find new cancer markers, which could improve diagnosis and treatment.

Methodology

The study used a centrifugation method to isolate interstitial fluid from ovarian tumor samples and analyzed the protein composition using proteomics.

Potential Biases

Potential contamination from intracellular proteins during the isolation process.

Limitations

The study pooled samples from a few patients, which may limit the generalizability of the findings.

Participant Demographics

Patients with ovarian carcinoma, including various stages of the disease.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0019217

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