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Journal of Neuro-Oncology

, Volume 90, Issue 2, pp 223–228 | Cite as

Immunohistochemical profiles of brain metastases from breast cancer

  • Kan Yonemori
  • Koji TsutaEmail author
  • Chikako Shimizu
  • Yutaka Hatanaka
  • Kaoru Hashizume
  • Makiko Ono
  • Yukihiro Nakanishi
  • Tadashi Hasegawa
  • Yasuji Miyakita
  • Yoshitaka Narita
  • Soichiro Shibui
  • Yasuhiro Fujiwara
Clinical study - patient study

Abstract

The aim of present study is to explore the immunohistochemical profiles of brain metastases from breast cancer. We retrospectively performed immunohistochemical staining for estrogen receptor (ER), progesterone receptor (PgR), human epidermal growth factor receptor type 2 (HER2/neu), and cytokeratin (CK) 5/6 in 29 patients with resected tumor specimens of brain metastases. Immunohistochemical staining for ER, PgR and HER2/neu was performed in 24 patients with primary tumors. The positive frequency of immunohistochemical profiles of ER, PgR, HER2/neu, and CK5/6, in the brain metastases were 13.8%, 6.9%, 37.9%, and 24.1%, respectively. The immunohistochemical profiles including ER, PgR, and HER2/neu of the primary tumor and the brain metastasis differed in seven patients (29.2%, N = 7/24). Interestingly, the biological characteristics of brain metastasis sometimes changed which were represented by immunohistochemical staining. Therefore, the changes in the biological features of breast cancer should be taken into account when developing treatment strategies, including new molecular-targeted drugs, for brain metastases.

Keywords

Immunohistochemical staining Discordance Hormone receptor HER2/neu Breast cancer Brain metastasis 

Notes

Acknowledgements

This study was supported by grants from the Ministry of Health, Labour, and Welfare. The authors thank Kunihiko Seki, M.D. (Clinical Laboratory Division, National Cancer Center Hospital), Eriko Nakano, M.D., Mayu Yunokawa, M.D., Tsutomu Kouno, M.D., Masashi Ando, M.D., Noriyuki Katsumata, M.D., and Kenji Tamura, M.D., PhD. (Breast and Medical Oncology Division, National Cancer Center Hospital) for their assistance.

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Copyright information

© Springer Science+Business Media, LLC. 2008

Authors and Affiliations

  • Kan Yonemori
    • 1
  • Koji Tsuta
    • 2
  • Chikako Shimizu
    • 1
  • Yutaka Hatanaka
    • 3
  • Kaoru Hashizume
    • 3
  • Makiko Ono
    • 1
  • Yukihiro Nakanishi
    • 4
  • Tadashi Hasegawa
    • 5
  • Yasuji Miyakita
    • 6
  • Yoshitaka Narita
    • 6
  • Soichiro Shibui
    • 6
  • Yasuhiro Fujiwara
    • 1
    • 2
  1. 1.Breast and Medical Oncology DivisionNational Cancer Center HospitalTokyoJapan
  2. 2.Clinical Laboratory DivisionNational Cancer Center HospitalTokyoJapan
  3. 3.Dako Japan Inc.TokyoJapan
  4. 4.Pathology DivisionNational Cancer Center InstituteTokyoJapan
  5. 5.Department of Surgical PathologySapporo Medical School of MedicineSapporoJapan
  6. 6.Neurosurgery DivisionNational Cancer Center HospitalTokyoJapan

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