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Association of ultrasonographic features with NGX6 expression and prognosis in invasive ductal breast carcinoma.

ABSTRACT: Nasopharyngeal carcinoma-associated gene 6 (NGX6) is a newly discovered tumor suppressor gene. It contains one epidermal growth factor (EGF)-like domain. Many studies have shown that proteins contain (EGF)-like domain structure affect a variety of biological actions. However, little is known about the relationships between NGX6 expression and biological behaviors in invasive ductal breast carcinoma (IDBC). The study discussed the association of ultrasonographic features with NGX6 expression and prognosis in IDBC.Ultrasonographic feature and clinical data in 122 patients with IDBC were retrospectively analyzed. NGX6 expression of IDBC was measured using immunohistochemistry methods.The incidence of the burr sign, lymph node metastasis and abundance blood flow in NGX6 expression negative groups were higher than those in positive groups. Kaplan-Meier analysis showed that the association between NGX6 positive expression and higher disease-free survival (DFS) or higher overall survival (OS); Lymph node metastasis is associated with lower DFS or lower OS; Lower blood flow grade is associated with higher DFS. In univariate and multivariate survival analysis, NGX6 expression, lymph node metastasis, TNM and the blood flow grade were the independent prognostic factors for DFS and OS of IDBC.ultrasonographic features are associated with NGX6 expression in IDBC. NGX6 is involved in the invasion and metastasis activity of IDBC. Our results suggest that NGX6 may be employed as a promising prognostic factor and useful therapeutic target for IDBC. Combination of ultrasonic findings and NGX6 detection may yield clinically useful information for IDBC prognosis.

SUBMITTER: Xiao J

PROVIDER: S-EPMC4525856 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Association of ultrasonographic features with NGX6 expression and prognosis in invasive ductal breast carcinoma.

Xiao Jidong J Zhou Yuanquan Y Zhu Wenhui W

International journal of clinical and experimental pathology 20150601 6

<h4>Introduction</h4>Nasopharyngeal carcinoma-associated gene 6 (NGX6) is a newly discovered tumor suppressor gene. It contains one epidermal growth factor (EGF)-like domain. Many studies have shown that proteins contain (EGF)-like domain structure affect a variety of biological actions. However, little is known about the relationships between NGX6 expression and biological behaviors in invasive ductal breast carcinoma (IDBC). The study discussed the association of ultrasonographic features with ...[more]

PMID: 26261522

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Project description:BackgroundThe breast cancer is the most prevalent cancer among women, on the other hand absence of myoepithelial cells play a pivotal role in pathogenesis of this cancer. Thus we aimed to investigate the possible abilities of the molecular assay technique to find a relationship between mammary serine protease inhibitor (Maspin) gene expression possibly secreted by myoepithelial cells, grade of breast cancer and other prognostics factors (ER, PR, and c-erb-B2).MethodsParaffin embedded blocks of 31 breast cancer patients together with two normal breast tissues were used for IHC staining and Maspin gene RNA detection uses the real-time PCR method. Applying QIAGEN kit, we were able to measure Maspin RNA and Extract the cDNA of different samples for evaluating the Maspin RNA level.ResultsWe found that the RNA level was considerably lowerin these cancer samples compared with normal samples. In addition, different grades of breast cancer in the obtained results adopt some distinguishable values. The Maspin expression in samples with grades II and III is much lower than the ones in normal group (P<0.05) which could be considered as a promising way in diagnosing of this disease. The results showed no considerable differences in Maspin gene expression of the c-erb-B2 scores in the tumor group except the samples having score 0. The other observation of this research study confirmed that Maspin gene expression couldn't show any differences between the values of both ER and PR in different scores of the tumor group. On the other hand, the cDNA of these patients showed lower values compared with normal samples.ConclusionMaspin expression was reduced in samples with grade II& III of invasive ductal carcinoma. Based on expression of Maspin Inc-erb-B2, it seems that more expression happened in normal group comparing with different scores of it. We could suggest that there was a reverse relationship between tumor formation and Maspin gene expression. These results showed possible role of Maspin as prognostic factor.

Dataset Information

Association of ultrasonographic features with NGX6 expression and prognosis in invasive ductal breast carcinoma.

Publications

Association of ultrasonographic features with NGX6 expression and prognosis in invasive ductal breast carcinoma.

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