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ObjectiveTo evaluate the consistency of HER2 gene status before and after neoadjuvant chemotherapy in breast cancer by FISH (fluorescence in situ hybridization) and IHC (immunohistochemistry) techniques,and analyze the factor of the difference in the result and the feasibility of HER2 gene tested by FISH in the neoadjuvant chemotherapy breast cancer patients.Methods FISH and IHC for HER2 gene expression status was performed on the archival paraffin-embedded sections of breast cancer tissues before and after neoadjuvant chemotherapy from 135 Chinese female patients,x2 test of paired comparison of enumeration data and Kappa analysis were used to compare the difference and consistency of this two techniques.ResultsThe detection rate of HER2 status in punctured cancer tissues before neoadjuvant chemotherapy by FISH and HER2 did not show statistical difference in our research while the opposite result were showed in cancer tissues after neoadjuvant chemotherapy.Moreover,the two techniques of HER2 test were less concordant in patients accepted taxanes neoadjuvant chemotherapy than CAF treatment.ConclusionsThe consistency of FISH and IHC techniques of cancer tissues before neoadjuvant chemotherapy gained advantage compared to the ones after neoadjuvant chemotherapy.Patients received neoadjuvant chemotherapy especially taxanes should take the test of HER2 gene status by FISH technique.
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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.
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Objective To explore the effects of curcumin on the expression of C-erbB-2, Survivin and Bax in prost cancer cell. Methods The effects of curcumin on the expression of C-erbB-2, Suevivin and Bax were observed by SP immnohistocherminstry and cell cultivate methods. Results The expression of Survivin and C-erbB-2 in contrast group were strong, but the expression of Bax was very weak. After the curcumin were incubated with culture medium for 6h, 12h, 24h, 48h, the expression of C-erbB-2 and Survivin were gradually decreased in DU145 cells, while the expression of Bax was increased and reached highest at the time point of 12 ～24h. Conclusion The curcumin can reduce the expression of C-erbB-2 and surviving, and increase expression of Bax. The curcumin may exert antitumor activity by interacting with DU145 cells.