A study on Pertinence of pathologic and biology features in HER-2, ER and PR negative breast cancer / 中国医师杂志

ABSTRACT

Objective To analyze the pathologic and biology features and prognosis of HER-2,ER and PR negative breast cancer(TNBC).Methods Clinic pathologic data of 329 breast cancer patients was retrospectively analyzed. The expression of HER-2, ER, PR and P53 was determined by immunohistochemistry. The patients were divided into three groups, including TN group [ HER-2 (-), ER (-), PR (-)], HER-2 group [HER-2(+),ER(-),PR(-)] and HR group [ER(+),PR(-) or (+),HER-2(-) or (+) ].The pathology and biology features and P53 masculine expression of the three groups were compared.The 5-year overall survival and disease free survival were analyzed by Kaplan-Meier method.Results Of the 329 patients, 20.97% (69/329) was TN group, 34.04% (112/329)was HER-2 group, and 44.98% (148/329) was HR group.The percentage of with lymph node metastasis in TN group 55.07% (38/69) was higher than that in HER-2 group 42.86% (48/112) and HR group 43.24% (64/148) (χ2 = 12.57, P ＜ 0.05).The rates of P53 positive, operation recurrence and metastasis in TN group were 44.93%, 27.54% and 20.29%, which were higher than that in HER-2 group (20.54% ,16.07%,16.96%) and HR group (18.24%, 12.84%, 10.81%) (χ2=12.23, 8.36, P ＜0.05).The ratio of tumor ≥5cm, Ⅲ stages, Ⅲ grade and soakage canula cancer among three groups had statistical difference (χ2 = 7.25,8.79,9.23,8.48, P ＜ 0.05).The 5-year overall survival in three groups were 75.36%,82.14% ,85.14% and disease free survival were 68.12% ,78.57% ,82.43% (χ2 =8.52, P ＜0.05).Conclusion The pathology and biology traits of TNBC were high rate of P53 (+) and recurrence and lymph node metastasis.The most important factor for poor prognosis of TNBC was the low rate of disease free survival for 5 years.