Study of tumor-associated macrophages in triple-negative breast cancer and their correlation with clinicopathological parameters

Triple-Negative Breast Cancer (TNBC) is defined by the lack of immunohistochemical expression in both estrogen and progesterone receptors as well as lack of HER-2 gene amplification. Due to the lack of targetable molecules, limited treatment options are available, prompting the need to identify prog...

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Main Author: Priyalatha Kurusamy
Other Authors: School of Biological Sciences
Format: Final Year Project
Language:English
Published: 2014
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Online Access:http://hdl.handle.net/10356/60621
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-606212023-02-28T18:05:40Z Study of tumor-associated macrophages in triple-negative breast cancer and their correlation with clinicopathological parameters Priyalatha Kurusamy School of Biological Sciences Singapore General Hospital, Department of Pathology Dr Jabed Iqbal DRNTU::Science Triple-Negative Breast Cancer (TNBC) is defined by the lack of immunohistochemical expression in both estrogen and progesterone receptors as well as lack of HER-2 gene amplification. Due to the lack of targetable molecules, limited treatment options are available, prompting the need to identify prognostic factors for TNBC patients. Evidence suggests that Tumor Associated Macrophages (TAMs) found in breast cancers can contribute in tumorigenesis via angiogenesis and inhibition of immune response. The expression levels of TAMs in both stromal (CD68S) and tumor nest (CD68T) regions were evaluated by performing immunohistochemistry using CD68 biomarker in tissue microarrays with tumors from 183 TNBC cancer cases. Correlations for CD68 expression with various clinicopathological parameters was determined using Pearson’s Correlation Test and survival outcomes were estimated using Kaplan Meier analysis. Results showed that (a) CD68S expression significantly correlated with tubule formation (P=0.021), growth pattern (P=0.026) and histological grade (P=0.004) and (b) CD68T expression significantly correlated with mean age (P=0.016), growth pattern (P=0.003), associated DCIS (P=0.004) and lymphovascular invasion (P=0.004). There was also significant association for CD68T expression with disease free survival (P=0.021). The results obtained in this study convey that TAMs have potential to be considered as prognostic markers in TNBC. Bachelor of Science in Biological Sciences 2014-05-29T02:52:38Z 2014-05-29T02:52:38Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/60621 en Nanyang Technological University 34 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Science
spellingShingle DRNTU::Science
Priyalatha Kurusamy
Study of tumor-associated macrophages in triple-negative breast cancer and their correlation with clinicopathological parameters
description Triple-Negative Breast Cancer (TNBC) is defined by the lack of immunohistochemical expression in both estrogen and progesterone receptors as well as lack of HER-2 gene amplification. Due to the lack of targetable molecules, limited treatment options are available, prompting the need to identify prognostic factors for TNBC patients. Evidence suggests that Tumor Associated Macrophages (TAMs) found in breast cancers can contribute in tumorigenesis via angiogenesis and inhibition of immune response. The expression levels of TAMs in both stromal (CD68S) and tumor nest (CD68T) regions were evaluated by performing immunohistochemistry using CD68 biomarker in tissue microarrays with tumors from 183 TNBC cancer cases. Correlations for CD68 expression with various clinicopathological parameters was determined using Pearson’s Correlation Test and survival outcomes were estimated using Kaplan Meier analysis. Results showed that (a) CD68S expression significantly correlated with tubule formation (P=0.021), growth pattern (P=0.026) and histological grade (P=0.004) and (b) CD68T expression significantly correlated with mean age (P=0.016), growth pattern (P=0.003), associated DCIS (P=0.004) and lymphovascular invasion (P=0.004). There was also significant association for CD68T expression with disease free survival (P=0.021). The results obtained in this study convey that TAMs have potential to be considered as prognostic markers in TNBC.
author2 School of Biological Sciences
author_facet School of Biological Sciences
Priyalatha Kurusamy
format Final Year Project
author Priyalatha Kurusamy
author_sort Priyalatha Kurusamy
title Study of tumor-associated macrophages in triple-negative breast cancer and their correlation with clinicopathological parameters
title_short Study of tumor-associated macrophages in triple-negative breast cancer and their correlation with clinicopathological parameters
title_full Study of tumor-associated macrophages in triple-negative breast cancer and their correlation with clinicopathological parameters
title_fullStr Study of tumor-associated macrophages in triple-negative breast cancer and their correlation with clinicopathological parameters
title_full_unstemmed Study of tumor-associated macrophages in triple-negative breast cancer and their correlation with clinicopathological parameters
title_sort study of tumor-associated macrophages in triple-negative breast cancer and their correlation with clinicopathological parameters
publishDate 2014
url http://hdl.handle.net/10356/60621
_version_ 1759856815262138368