Gene expression profiling of breast tumours from New Zealand patients

AIMS: New Zealand has one of the highest rates of breast cancer incidence in the world. We investigated the gene expression profiles of breast tumours from New Zealand patients, compared them to gene expression profiles of international breast cancer cohorts and identified any associations between a...

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Main Authors: Muthukaruppan, Anita, Lasham, Annette, Blenkiron, Cherie, Woad, Kathryn J., Black, Michael A., Knowlton, Nicholas, McCarthy, Nicole, Findlay, Michael P., Print, Cristin G., Shelling, Andrew N.
Format: Article
Published: New Zealand Medical Association 2017
Online Access:https://eprints.nottingham.ac.uk/49833/
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author Muthukaruppan, Anita
Lasham, Annette
Blenkiron, Cherie
Woad, Kathryn J.
Black, Michael A.
Knowlton, Nicholas
McCarthy, Nicole
Findlay, Michael P.
Print, Cristin G.
Shelling, Andrew N.
author_facet Muthukaruppan, Anita
Lasham, Annette
Blenkiron, Cherie
Woad, Kathryn J.
Black, Michael A.
Knowlton, Nicholas
McCarthy, Nicole
Findlay, Michael P.
Print, Cristin G.
Shelling, Andrew N.
author_sort Muthukaruppan, Anita
building Nottingham Research Data Repository
collection Online Access
description AIMS: New Zealand has one of the highest rates of breast cancer incidence in the world. We investigated the gene expression profiles of breast tumours from New Zealand patients, compared them to gene expression profiles of international breast cancer cohorts and identified any associations between altered gene expression and the clinicopathological features of the tumours. METHODS: Affymetrix microarrays were used to measure the gene expression profiles of 106 breast tumours from New Zealand patients. Gene expression data from six international breast cancer cohorts were collated, and all the gene expression data were analysed using standard bioinformatic and statistical tools. RESULTS: Gene expression profiles associated with tumour ER and ERBB2 status, molecular subtype and selected gene expression signatures within the New Zealand cohort were consistent with those found in international cohorts. Significant differences in clinicopathological features such as tumour grade, tumour size and lymph node status were also observed between the New Zealand and international cohorts. CONCLUSIONS: Gene expression profiles, which are a sensitive indicator of tumour biology, showed no clear di¬fference between breast tumours from New Zealand patients and those from non-New Zealand patients. This suggests that other factors may contribute to the high and increasing breast cancer incidence in New Zealand compared to international populations.
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publishDate 2017
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spelling nottingham-498332020-05-04T19:14:13Z https://eprints.nottingham.ac.uk/49833/ Gene expression profiling of breast tumours from New Zealand patients Muthukaruppan, Anita Lasham, Annette Blenkiron, Cherie Woad, Kathryn J. Black, Michael A. Knowlton, Nicholas McCarthy, Nicole Findlay, Michael P. Print, Cristin G. Shelling, Andrew N. AIMS: New Zealand has one of the highest rates of breast cancer incidence in the world. We investigated the gene expression profiles of breast tumours from New Zealand patients, compared them to gene expression profiles of international breast cancer cohorts and identified any associations between altered gene expression and the clinicopathological features of the tumours. METHODS: Affymetrix microarrays were used to measure the gene expression profiles of 106 breast tumours from New Zealand patients. Gene expression data from six international breast cancer cohorts were collated, and all the gene expression data were analysed using standard bioinformatic and statistical tools. RESULTS: Gene expression profiles associated with tumour ER and ERBB2 status, molecular subtype and selected gene expression signatures within the New Zealand cohort were consistent with those found in international cohorts. Significant differences in clinicopathological features such as tumour grade, tumour size and lymph node status were also observed between the New Zealand and international cohorts. CONCLUSIONS: Gene expression profiles, which are a sensitive indicator of tumour biology, showed no clear di¬fference between breast tumours from New Zealand patients and those from non-New Zealand patients. This suggests that other factors may contribute to the high and increasing breast cancer incidence in New Zealand compared to international populations. New Zealand Medical Association 2017-10-27 Article PeerReviewed Muthukaruppan, Anita, Lasham, Annette, Blenkiron, Cherie, Woad, Kathryn J., Black, Michael A., Knowlton, Nicholas, McCarthy, Nicole, Findlay, Michael P., Print, Cristin G. and Shelling, Andrew N. (2017) Gene expression profiling of breast tumours from New Zealand patients. New Zealand Medical Journal, 130 (1464). 7396/40-7396/56. ISSN 1175-8716 https://www.nzma.org.nz/journal/read-the-journal/all-issues/2010-2019/2017/vol-130-no-1464-27-october-2017/7396
spellingShingle Muthukaruppan, Anita
Lasham, Annette
Blenkiron, Cherie
Woad, Kathryn J.
Black, Michael A.
Knowlton, Nicholas
McCarthy, Nicole
Findlay, Michael P.
Print, Cristin G.
Shelling, Andrew N.
Gene expression profiling of breast tumours from New Zealand patients
title Gene expression profiling of breast tumours from New Zealand patients
title_full Gene expression profiling of breast tumours from New Zealand patients
title_fullStr Gene expression profiling of breast tumours from New Zealand patients
title_full_unstemmed Gene expression profiling of breast tumours from New Zealand patients
title_short Gene expression profiling of breast tumours from New Zealand patients
title_sort gene expression profiling of breast tumours from new zealand patients
url https://eprints.nottingham.ac.uk/49833/
https://eprints.nottingham.ac.uk/49833/