Monitoring the Systemic Human Memory B Cell Compartment of Melanoma Patients for Anti-Tumor IgG Antibodies
2011

Monitoring B Cell Responses in Melanoma Patients

Sample size: 21 publication 10 minutes Evidence: high

Author Information

Author(s): Gilbert Amy E., Karagiannis Panagiotis, Dodev Tihomir, Koers Alexander, Lacy Katie, Josephs Debra H., Takhar Pooja, Geh Jenny L. C., Healy Ciaran, Harries Mark, Acland Katharine M., Rudman Sarah M., Beavil Rebecca L., Blower Philip J., Beavil Andrew J., Gould Hannah J., Spicer James, Nestle Frank O., Karagiannis Sophia N.

Primary Institution: King’s College London

Hypothesis

The study investigates the role of mature B cells and their antibody responses in melanoma patients.

Conclusion

The study found that melanoma patients have a significant presence of tumor-reactive antibodies, which decrease with disease progression.

Supporting Evidence

  • 28% of melanoma patient-derived B cell cultures produced antibodies that recognized melanoma cells.
  • 2% of cultures from healthy controls produced similar antibodies.
  • Antibody responses decreased with advancing disease stage.

Takeaway

This study shows that people with melanoma have special cells in their blood that can make antibodies to fight the cancer, but these cells are less effective as the cancer gets worse.

Methodology

The study used a cell-based ELISA to evaluate IgG antibody responses from B cells of melanoma patients and healthy volunteers.

Limitations

The study primarily focused on antibodies against metastatic melanoma cells, which may not account for responses to primary disease antigens.

Participant Demographics

The patient cohort was almost exclusively Caucasian.

Statistical Information

P-Value

p<0.0001

Confidence Interval

95% CI 2.4 to 2.6

Statistical Significance

p<0.0001

Digital Object Identifier (DOI)

10.1371/journal.pone.0019330

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