乳腺导管内增生性病变及合并浸润性导管癌的临床病理分析(英文)

Objective:The purpose of this study was to study the clinical and pathological characteristics of breast intraductal proliferative lesions(IDPLs) and associated with invasive breast cancer.Methods:We reviewed 327 cases of breast intraductal proliferative lesions including 53 cases of usual ductal hyperplasia,57 cases of atypical ductal hyperplasia,89 cases of ductal carcinoma in situ,and 128 cases coexist with invasive ductal carcinomas.Cases of pure invasive cancer without intraductal proliferative lesions were excluded.The mult IDPLs biological parameters including the express of ER,PR,HER2,HIF-1α and Ki-67 detected by immunohistochemistry S-P method(n=327) and the levels of CA153,TSGF,CA125 and CEA both in nipple discharge and serum(n=179) measured with Electrochemiluminescence method and their relationship were studied,and 30 cases of normal pregnant women were compared with.Results:A single histologic subtype was present in 49.85%(163/327) of the cases,two subtypes in 33.03%(108/327),and three in 17.13%(56/327).The most common subtypes present were cribriform(43.12%,141/327) and solid(38.53%,126/327),while the comedo(16.35%,54/327),and micropapillary(12.84%,42/327) subtypes were less common.Comedo and solid were frequently found together for coexpression as were micropapillary and papillary subtypes.However,Comedo subtype was much less likely to be found with papillary,cribriform or micropapillary subtypes.Additionally,comedo subtypes tend to be hormone receptor negative,Her2 positive and high-grade while the cribriform and solid subtype tends to be hormone receptor positive,Her2 negative and low grade.Papillary subtype was least likely to be associated with an invasive cancer.Furthermore,the nipple discharge and serum levels of CA153,TSGF,CA125 and CEA in coexist with invasive ductal carcinomas patients were significantly higher than those in the benign breast disease(pure intraductal proliferative lesions) and normal pregnant women(P<0.01).Additionally,the levels of CA153,TSGF,CA125 and CEA in nipple discharge were significantly higher than in the serum(P<0.01),and had a positive correlation with the Ki-67,grade,clinical stage,lymph node metastasis and tumor recurrence(P<0.05),and negative correlation with the level of ER and PR(P<0.05).The sensitivity of the four serum tumor markers in combination was only 69.77%,in contrast,the combined detection both in discharge and serum was 97.67%,and the negative predictive value was 99.03%.The sensitivity of combined detection both in nipple discharge and serum were significantly higher than other detection(P<0.05).Conclusion:IDPLs often present more than one histologic subtype and the most common subtypes are cribriform and solid,while comedo and micropapillary subtypes are less common.Our results suggest that the levels of CA153,TSGF,CA125 and CEA in nipple discharge were significantly higher than those in the serum,and is associated with HIF-1α.The aberration of HIF-1α may play a key role during oncogenesis and promote breast cellular transformation into malignancy,a finding useful for further understanding of tumorigenesis.Nipple discharge can be the earliest presenting symptom of breast cancer.The dynamic combined detection of the four tumor markers both in nipple discharge and serum are helpful to the stratification of preoperative patients and benefit to better prewarning markers for monitoring their recurrence and metastasis and clinical staging of tumors in clinic,but cannot increase the sensitivity of judging the patients with early breast cancer.

HIF-1α在乳腺癌及癌前病变中的表达及其与临床病理因素的关系(英文)

Objective: The aim of this study was to observe the expressions and clinical significance of HIF-1α in breast cancer and precancerous lesions, and analyze the relationship between the expressions and clinicopathological features in breast cancer. Methods: We analyzed the HIF-1α expression in 128 cases of invasive ductal carcinomas, 146 precancerous lesions patients including 89 cases of ductal carcinoma in situ and 57 cases of atypical ductal hyperplasia. 53 cases of usual ductal hyperplasia breast tissues were selected as a control group. The specimens were evaluated for HIF-1α, estrogen receptor(ER) & progesterone receptor(PR), epidermal growth factor receptor type 2(HER2/neu) and Ki-67. Immunoreactivity was semi-quantitatively evaluated in at least 1000 cells examined under the microscope at 40 × magnification and recorded as the percentage of positive tumor cells over the total number of cells examined in the same area. The percentage scores were subsequently categorized. The express of HIF-1α and their relationship with multiple biological parameters including ER & PR, HER2/neu and Ki-67, the biomarkers levels of CA153, CA125 TSGF, and CEA in blood serum and nipple discharge, histological grade, region lymph node metastasis, distant metastasis and recurrence on files were also assessed. Results: Compared with usual ductal hyperplasia, the positive expression rate of HIF-1α in atypical ductal hyperplasia, ductal carcinoma in situ and invasive ductal carcinomas group was significantly increased(P < 0.01). The positive rates of HIF-1α in invasive ductal carcinomas were 68.75%, which were significantly higher than that in ductal carcinoma in situ(43.8%), atypical ductal hyperplasia(31.6%), usual ductal hyperplasia(9.4%; χ2 = 13.44, 22.27, 52.79, respectively, P < 0.01). Statistical analysis showed that difference of abnormal expression rate of HIF-1α between ductal carcinoma in situ and usual ductal hyperplasia(χ2 = 18.37, P = 0. 00), atypical ductal hyperplasia and usual ductal hyperplasia(χ2 = 8.14, P = 0.00) was significant(P = 0.00). However, no significant difference in the positive expression rate of HIF-1α was found between atypical ductal hyperplasia and ductal carcinoma in situ tissue(χ2 = 2.19, P = 0.14). There was a significantly difference in the mean HIF-1α frequency between ER & PR positive invasive ductal carcinomas group and negative group, epidermal growth factor receptor type 2(HER2/neu) positive and negative groups, Ki-67 proliferation index ≤ 14% and > 14% groups, histological grade(I + II) and grade III invasive ductal carcinomas groups, with lymph node metastasis, distant metastasis and recurrence groups(P < 0.05) and without groups(P < 0.05). However, there was not difference in the mean HIF-1α between age(≤ 50 years vs > 50 years), tumor diameter(≤ 2 cm vs > 2 cm; P > 0.05). The nipple discharge and serum levels of CA153, TSGF, CA125 and CEA in invasive ductal carcinomas HIF-1α positive patients were significantly higher than those in the negative patients(P < 0.05). Conclusion: In breast cancer, HIF-1α expression was abnormally increased. The aberration of HIF-1α may play a key role during oncogenesis(atypical ductal hyperplasia or ductal carcinoma in situ) and promote breast cellular transformation into malignancy, a finding useful for further understanding of tumorigenesis. The abnormal expression of HIF-1α may be as an early event in the development of breast tumor. The over-expression of HIF-1α might be important biological markers for invasion, metastasis and recurrence of breast cancer.