ABCG2 is associated with HER-2 Expression, lymph node metastasis and clinical stage in breast invasive ductal carcinoma

<p>Abstract</p> <p>Background</p> <p>ABCG2 is an ABC transporter. It has been demonstrated that endogenous ABCG2 expression in certain cancers is a possible reflection of the differentiated phenotype of the cell of origin and likely contributes to intrinsic drug resista...

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Main Authors: Gao Peng (Author), Wang Yan (Author), Liu Zhiyan (Author), Xia Shujun (Author), Su Peng (Author), Xiang Lei (Author), Zhou Genyin (Author)
Format: Book
Published: BMC, 2011-09-01T00:00:00Z.
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LEADER 00000 am a22000003u 4500
001 doaj_5c8593b10a6e4038ab50e9f0cd5d67c9
042 |a dc 
100 1 0 |a Gao Peng  |e author 
700 1 0 |a Wang Yan  |e author 
700 1 0 |a Liu Zhiyan  |e author 
700 1 0 |a Xia Shujun  |e author 
700 1 0 |a Su Peng  |e author 
700 1 0 |a Xiang Lei  |e author 
700 1 0 |a Zhou Genyin  |e author 
245 0 0 |a ABCG2 is associated with HER-2 Expression, lymph node metastasis and clinical stage in breast invasive ductal carcinoma 
260 |b BMC,   |c 2011-09-01T00:00:00Z. 
500 |a 10.1186/1746-1596-6-90 
500 |a 1746-1596 
520 |a <p>Abstract</p> <p>Background</p> <p>ABCG2 is an ABC transporter. It has been demonstrated that endogenous ABCG2 expression in certain cancers is a possible reflection of the differentiated phenotype of the cell of origin and likely contributes to intrinsic drug resistance. But little is known about the contribution of ABCG2 to the drug resistance and the clinicopathological characteristics in breast cancer. In the present study, we investigated the expression of ABCG2 and the correlations between ABCG2 expression and patients' clinicopathological and biological characteristics.</p> <p>Methods</p> <p>Immunohistochemistry was employed on the tissue microarray paraffin sections of surgically removed samples from 196 breast cancer patients with clinicopathological data.</p> <p>Results</p> <p>The results showed that ABCG2 was expressed in different intensities and distributions in the tumor cells of the breast invasive ductal carcinoma. A positive stain for ABCG2 was defined as a brown stain observed in the cytoplasm and cytomembrane. A statistically significant correlation was demonstrated between ABCG2 expression and HER-2 expression (p = 0.001), lymph node metastasis (p = 0.049), and clinical stage (p = 0.015) respectively.</p> <p>Conclusion</p> <p>ABCG2 correlated with Her-2 expression, lymph node metastasis and clinical stage in breast invasive ductal carcinoma. It could be a novel potential bio-marker which can predict biological behavior, clinical progression, prognosis and chemotherapy effectiveness.</p> 
546 |a EN 
690 |a ABCG2(BCRP) 
690 |a Her-2 
690 |a Lymph node metastasis 
690 |a Clinical stage 
690 |a Correlation 
690 |a Breast invasive ductal cancer 
690 |a Immunohistochemistry 
690 |a Tissue microarray 
690 |a Pathology 
690 |a RB1-214 
655 7 |a article  |2 local 
786 0 |n Diagnostic Pathology, Vol 6, Iss 1, p 90 (2011) 
787 0 |n http://www.diagnosticpathology.org/content/6/1/90 
787 0 |n https://doaj.org/toc/1746-1596 
856 4 1 |u https://doaj.org/article/5c8593b10a6e4038ab50e9f0cd5d67c9  |z Connect to this object online.