Molecular classification of breast cancer: An overview with emphasis on ethnic variations and future perspectives

Morphologically identical breast cancers can display divergent clinical outcomes and responses to therapy. This can predominantly be attributed to molecular class differences that exist amongst histologically similar cancer types. Consequently, molecular classification can be more powerful than hist...

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Main Authors: Mohamed A Shawarby, Dalal M Al-Tamimi, Ayesha Ahmed
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2013-01-01
Series:Saudi Journal of Medicine and Medical Sciences
Subjects:
Online Access:http://www.sjmms.net/article.asp?issn=1658-631X;year=2013;volume=1;issue=1;spage=14;epage=19;aulast=Shawarby
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author Mohamed A Shawarby
Dalal M Al-Tamimi
Ayesha Ahmed
author_facet Mohamed A Shawarby
Dalal M Al-Tamimi
Ayesha Ahmed
author_sort Mohamed A Shawarby
collection DOAJ
description Morphologically identical breast cancers can display divergent clinical outcomes and responses to therapy. This can predominantly be attributed to molecular class differences that exist amongst histologically similar cancer types. Consequently, molecular classification can be more powerful than histopathology as a predictive factor for the different treatments. This article reviews the molecular classification of breast cancer and emphasizes that ethnic variations may exist in molecular class prevalence patterns. It also highlights key insights into the currently defined molecular classes as provided by ongoing research on primary breast cancers using recent state-of-the-art technology. Such research is revealing that significant molecular heterogeneity may exist within the molecular classes themselves. More diverse ethnic variations may also be unraveled. The results of ongoing and upcoming research may provide more precise prognostic and predictive information about breast cancer and perhaps a breakthrough step toward "personaliziation" of breast cancer treatment. Forty-one relevant articles (2000-2012) extracted through PubMed and Google advanced searches and at our institute′s library were utilized to prepare the article, along with results of published and ongoing research by the authors.
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spelling doaj.art-effa43f379c340c88b1f2e4e9e019dfd2022-12-22T02:59:55ZengWolters Kluwer Medknow PublicationsSaudi Journal of Medicine and Medical Sciences1658-631X2013-01-0111141910.4103/1658-631X.112908Molecular classification of breast cancer: An overview with emphasis on ethnic variations and future perspectivesMohamed A ShawarbyDalal M Al-TamimiAyesha AhmedMorphologically identical breast cancers can display divergent clinical outcomes and responses to therapy. This can predominantly be attributed to molecular class differences that exist amongst histologically similar cancer types. Consequently, molecular classification can be more powerful than histopathology as a predictive factor for the different treatments. This article reviews the molecular classification of breast cancer and emphasizes that ethnic variations may exist in molecular class prevalence patterns. It also highlights key insights into the currently defined molecular classes as provided by ongoing research on primary breast cancers using recent state-of-the-art technology. Such research is revealing that significant molecular heterogeneity may exist within the molecular classes themselves. More diverse ethnic variations may also be unraveled. The results of ongoing and upcoming research may provide more precise prognostic and predictive information about breast cancer and perhaps a breakthrough step toward "personaliziation" of breast cancer treatment. Forty-one relevant articles (2000-2012) extracted through PubMed and Google advanced searches and at our institute′s library were utilized to prepare the article, along with results of published and ongoing research by the authors.http://www.sjmms.net/article.asp?issn=1658-631X;year=2013;volume=1;issue=1;spage=14;epage=19;aulast=ShawarbyBreast cancerclassificationsmolecularprognosistreatment
spellingShingle Mohamed A Shawarby
Dalal M Al-Tamimi
Ayesha Ahmed
Molecular classification of breast cancer: An overview with emphasis on ethnic variations and future perspectives
Saudi Journal of Medicine and Medical Sciences
Breast cancer
classifications
molecular
prognosis
treatment
title Molecular classification of breast cancer: An overview with emphasis on ethnic variations and future perspectives
title_full Molecular classification of breast cancer: An overview with emphasis on ethnic variations and future perspectives
title_fullStr Molecular classification of breast cancer: An overview with emphasis on ethnic variations and future perspectives
title_full_unstemmed Molecular classification of breast cancer: An overview with emphasis on ethnic variations and future perspectives
title_short Molecular classification of breast cancer: An overview with emphasis on ethnic variations and future perspectives
title_sort molecular classification of breast cancer an overview with emphasis on ethnic variations and future perspectives
topic Breast cancer
classifications
molecular
prognosis
treatment
url http://www.sjmms.net/article.asp?issn=1658-631X;year=2013;volume=1;issue=1;spage=14;epage=19;aulast=Shawarby
work_keys_str_mv AT mohamedashawarby molecularclassificationofbreastcanceranoverviewwithemphasisonethnicvariationsandfutureperspectives
AT dalalmaltamimi molecularclassificationofbreastcanceranoverviewwithemphasisonethnicvariationsandfutureperspectives
AT ayeshaahmed molecularclassificationofbreastcanceranoverviewwithemphasisonethnicvariationsandfutureperspectives