The prevalence of intrinsic subtypes and prognosis in breast cancer patients of different races.

作者: Junichi Kurebayashi , Takuya Moriya , Takanori Ishida , Hisashi Hirakawa , Masafumi Kurosumi

DOI: 10.1016/J.BREAST.2007.07.017

关键词: Breast cancerInternal medicineSurvival analysisCohort studySurvival rateCytokeratinIn patientProgesterone receptorEstrogen receptorOncologyMedicine

摘要: A recent report indicated that a high prevalence of basal-like breast tumors (estrogen receptor [ER]-negative, progesterone [PR]-negative, human epidermal growth factor [HER] 2-negative, and cytokeratin 5/6-positive and/or HER1-positive) could contribute to poor prognosis in African American women with cancer. It has been reported Japanese cancer have significantly better survival rate than other races the USA. These findings suggest cancers favorable biological characteristics. To clarify this hypothesis, we conducted cohort study investigate intrinsic subtypes for each subtype 793 patients. This revealed very low (only 8%) aggressive characteristics Survival analysis showed poorer patients those luminal (ER- PR-positive, HER2-negative) support hypothesis more races. In conclusion, influence different The should be taken into account when analyzing data multi-racial/international clinical study.

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