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Cancer Biol Ther. 2015;16(12):1704-9. doi: 10.1080/15384047.2015.1108490.

Is the skin a sanctuary for breast cancer cells during treatment with anti-HER2 antibodies?

Author information

  • 1a Department of Medical ; Oral and Biotechnological Sciences; University "G. D'Annunzio" ; Chieti , Italy.
  • 2b Medical Oncology Unit; "G. Bernabeo" Hospital ; Ortona , Italy.
  • 3c Medical Oncology Unit; "SS. Annunziata" Hospital ; Chieti , Italy.
  • 4d Division of Medical Oncology B; Regina Elena National Cancer Institute ; Rome , Italy.

Abstract

The occurrence of skin metastases is a common event in patients affected by advanced breast cancer, usually associated with systemic disease progression. Here we describe 2 cases of diffuse cutaneous metastases from HER2-overexpressing breast cancer occurring despite a dramatic response in liver and bone, respectively, during treatment with anti-HER2 antibodies Trastuzumab and Pertuzumab. We discuss the reasons for this discrepancy and suggest a possible implication of impaired immune response in the skin. Future research should provide strategies to overcome the induction of immune privilege in the skin in order to avoid discontinuation of effective treatments.

KEYWORDS:

breast cancer; immune privilege; immune response; immune tolerance; pertuzumab; skin metastases; trastuzumab

PMID:
26552483
PMCID:
PMC4847805
DOI:
10.1080/15384047.2015.1108490
[PubMed - indexed for MEDLINE]
Free PMC Article
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