A human monoclonal autoantibody to breast cancer identifies the PDZ domain containing protein GIPC1 as a novel breast cancer-associated antigen
2008

Identifying a New Breast Cancer Antigen

publication Evidence: moderate

Author Information

Author(s): Rudchenko Sergei, Scanlan Matthew, Kalantarov Gavreel, Yavelsky Victoria, Levy Chen, Estabrook Alison, Old Lloyd, Chan Gerald L, Lobel Leslie, Trakht Ilya

Primary Institution: Hospital for Special Surgery

Hypothesis

Can a human monoclonal autoantibody identify novel breast cancer-associated antigens?

Conclusion

GIPC1 is a novel breast cancer-associated immunogenic antigen that is overexpressed in breast cancer.

Supporting Evidence

  • GIPC1 is highly expressed in cultured human breast cancer cells.
  • GIPC1 is overexpressed in primary and metastatic tumor tissues.
  • The study identified GIPC1 as a target for two monoclonal antibodies derived from breast cancer patients.

Takeaway

Researchers found a new protein called GIPC1 that is more common in breast cancer cells than in normal cells, which could help in cancer diagnosis and treatment.

Methodology

The study used immunocytochemistry, immunohistochemistry, Western blot analysis, and SEREX for target antigen identification.

Limitations

The role of GIPC1 in breast cancer initiation and progression remains unclear and requires further investigation.

Digital Object Identifier (DOI)

10.1186/1471-2407-8-248

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