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[Notch1 mRNA and protein expression in human breast cancer and normal mammary gland tissues]. 2009

Ben-lin Hua, and Xin-ge Fu, and Wen-hao Hu, and Liang Yin, and Xue-ling Kang, and Hong-an Li, and Jin-fang Jiang, and Feng Li
Department of Pathology, Shihezi University School of Medicine, Shihezi 832002, China.

OBJECTIVE To explore the Notch1 mRNA and protein expression in human breast cancers and normal mammary tissues, and their relationship with the clinical indicators of breast cancers were analyzed. METHODS Notch1 gene of human breast invasive ductal carcinoma (IDC) and normal mammary gland tissues were amplified by RT-PCR, and the expression of Notch1 protein was detected by immunohistochemical Streptavidin-Biotin Complex (SP) stain in 60 IDC, 30 ductal carcinoma in situ (DCIS) and 60 normal mammary tissues. RESULTS Notch1 gene of human IDC and normal mammary tissues both could express in a transcription level; the positive rates of Notch1 protein expression in normal mammary tissues and DCIS were 55% and 70%. Respectively, which did not differ statistically (P > 0.05), while the positive rate in IDC was 90%, significantly higher than that of the normal mammary tissues and DCIS (P < 0.05). The high expression of Notch1 protein in IDC correlate significantly with lymph node metastasis, pathological grades and TNM stages. CONCLUSIONS Notch1 protein was over expressed in breast IDC. A high Notch1 protein expression is considered associating with the evolution and malignant transformation of the breast tumor. The expression of Notch1 gene maybe impact the effect of on the progression of breast cancers.

UI MeSH Term Description Entries
D008207 Lymphatic Metastasis Transfer of a neoplasm from its primary site to lymph nodes or to distant parts of the body by way of the lymphatic system. Lymph Node Metastasis,Lymph Node Metastases,Lymphatic Metastases,Metastasis, Lymph Node
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009367 Neoplasm Staging Methods which attempt to express in replicable terms the extent of the neoplasm in the patient. Cancer Staging,Staging, Neoplasm,Tumor Staging,TNM Classification,TNM Staging,TNM Staging System,Classification, TNM,Classifications, TNM,Staging System, TNM,Staging Systems, TNM,Staging, Cancer,Staging, TNM,Staging, Tumor,System, TNM Staging,Systems, TNM Staging,TNM Classifications,TNM Staging Systems
D001943 Breast Neoplasms Tumors or cancer of the human BREAST. Breast Cancer,Breast Tumors,Cancer of Breast,Breast Carcinoma,Cancer of the Breast,Human Mammary Carcinoma,Malignant Neoplasm of Breast,Malignant Tumor of Breast,Mammary Cancer,Mammary Carcinoma, Human,Mammary Neoplasm, Human,Mammary Neoplasms, Human,Neoplasms, Breast,Tumors, Breast,Breast Carcinomas,Breast Malignant Neoplasm,Breast Malignant Neoplasms,Breast Malignant Tumor,Breast Malignant Tumors,Breast Neoplasm,Breast Tumor,Cancer, Breast,Cancer, Mammary,Cancers, Mammary,Carcinoma, Breast,Carcinoma, Human Mammary,Carcinomas, Breast,Carcinomas, Human Mammary,Human Mammary Carcinomas,Human Mammary Neoplasm,Human Mammary Neoplasms,Mammary Cancers,Mammary Carcinomas, Human,Neoplasm, Breast,Neoplasm, Human Mammary,Neoplasms, Human Mammary,Tumor, Breast
D002285 Carcinoma, Intraductal, Noninfiltrating A noninvasive (noninfiltrating) carcinoma of the breast characterized by a proliferation of malignant epithelial cells confined to the mammary ducts or lobules, without light-microscopy evidence of invasion through the basement membrane into the surrounding stroma. Carcinoma, Intraductal,DCIS,Ductal Carcinoma In Situ,Atypical Ductal Hyperplasia,Intraductal Carcinoma, Noninfiltrating,Atypical Ductal Hyperplasias,Carcinoma, Noninfiltrating Intraductal,Carcinomas, Intraductal,Carcinomas, Noninfiltrating Intraductal,Ductal Hyperplasia, Atypical,Ductal Hyperplasias, Atypical,Hyperplasia, Atypical Ductal,Hyperplasias, Atypical Ductal,Intraductal Carcinoma,Intraductal Carcinomas,Intraductal Carcinomas, Noninfiltrating,Noninfiltrating Intraductal Carcinoma,Noninfiltrating Intraductal Carcinomas
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D000369 Aged, 80 and over Persons 80 years of age and older. Oldest Old

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