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Multifactorial Analysis of Differences Between Sporadic Breast Cancers and Cancers Involving BRCA1 and BRCA2 Mutations

Identifieur interne : 00C903 ( Main/Exploration ); précédent : 00C902; suivant : 00C904

Multifactorial Analysis of Differences Between Sporadic Breast Cancers and Cancers Involving BRCA1 and BRCA2 Mutations

Auteurs : Sunil R. Lakhani [Royaume-Uni] ; Jocelyne Jacquemier [France] ; John P. Sloane [Royaume-Uni] ; Barry A. Gusterson [Royaume-Uni] ; Thomas J. Anderson [Royaume-Uni] ; Marc J. Van De Vijver [Pays-Bas] ; Linda M. Farid ; Deon Venter [Australie] ; Antonios Antoniou [Royaume-Uni] ; Amy Storfer-Isser [Royaume-Uni] ; Elizabeth Smyth [Royaume-Uni] ; C. Michael Steel [Royaume-Uni] ; Neva Haites [Royaume-Uni] ; Rodney J. Scott [Suisse] ; David Goldgar [France] ; Susan Neuhausen ; Peter A. Daly [Irlande (pays)] ; Wilma Ormiston [Irlande (pays)] ; Ross Mcmanus [Irlande (pays)] ; Siegfried Scherneck [Allemagne] ; Bruce A. J. Ponder [Royaume-Uni] ; Debbie Ford [Royaume-Uni] ; Julian Peto [Royaume-Uni] ; Dominique Stoppa-Lyonnet [France] ; Yves-Jean Bignon ; Jeffery P. Struewing [États-Unis] ; Nigel K. Spurr [Royaume-Uni] ; D. Timothy Bishop [Royaume-Uni] ; J. G. M. Klijn [Pays-Bas] ; Peter Devilee [Pays-Bas] ; Cees J. Cornelisse [Pays-Bas] ; Christine Lasset [France] ; Gilbert Lenoir ; Rosa Bjork Barkardottir ; Valgardur Egilsson ; Ute Hamann [Allemagne] ; Jenny Chang-Claude [Allemagne] ; Hagay Sobol [France] ; Barbara Weber [États-Unis] ; Michael R. Stratton [Royaume-Uni] ; Douglas F. Easton [Royaume-Uni]

Source :

RBID : ISTEX:1321BC5201579CA9D8927DE5D613FAA310144902

Descripteurs français

English descriptors

Abstract

Background: We have previously demonstrated that breast cancers associated with inherited BRCA1 and BRCA2 gene mutations differ from each other in their histopathologic appearances and that each of these types differs from breast cancers in patients unselected for family history (i.e., sporadic cancers). We have now conducted a more detailed examination of cytologic and architectural features of these tumors. Methods: Specimens of tumor tissue (5-µm-thick sections) were examined independently by two pathologists, who were unaware of the case or control subject status, for the presence of cell mitosis, lymphocytic infiltration, continuous pushing margins, and solid sheets of cancer cells; cell nuclei, cell nucleoli, cell necrosis, and cell borders were also evaluated. The resulting data were combined with previously available information on tumor type and tumor grade and further evaluated by multifactorial analysis. All statistical tests are two-sided. Results: Cancers associated with BRCA1 mutations exhibited higher mitotic counts (P = .001), a greater proportion of the tumor with a continuous pushing margin (P<.0001), and more lymphocytic infiltration (P = .002) than sporadic (i.e., control) cancers. Cancers associated with BRCA2 mutations exhibited a higher score for tubule formation (fewer tubules) (P = .0002), a higher proportion of the tumor perimeter with a continuous pushing margin (P<.0001), and a lower mitotic count (P = .003) than control cancers. Conclusions: Our study has identified key features of the histologic phenotypes of breast cancers in carriers of mutant BRCA1 and BRCA2 genes. This information may improve the classification of breast cancers in individuals with a family history of the disease and may ultimately aid in the clinical management of patients. [J Natl Cancer Inst 1998;90:1138–45]

Url:
DOI: 10.1093/jnci/90.15.1138


Affiliations:


Links toward previous steps (curation, corpus...)


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<name sortKey="Bishop, D Timothy" sort="Bishop, D Timothy" uniqKey="Bishop D" first="D. Timothy" last="Bishop">D. Timothy Bishop</name>
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<wicri:regionArea>Daniel den Hoed Cancer Centre, Rotterdam</wicri:regionArea>
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<wicri:regionArea>Department of Genetics and Pathology, Leiden University</wicri:regionArea>
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<name sortKey="Cornelisse, Cees J" sort="Cornelisse, Cees J" uniqKey="Cornelisse C" first="Cees J." last="Cornelisse">Cees J. Cornelisse</name>
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<country xml:lang="fr">Pays-Bas</country>
<wicri:regionArea>Department of Genetics and Pathology, Leiden University</wicri:regionArea>
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<name sortKey="Lasset, Christine" sort="Lasset, Christine" uniqKey="Lasset C" first="Christine" last="Lasset">Christine Lasset</name>
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<wicri:regionArea>Centre Leon Bernard, Lyon</wicri:regionArea>
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<region type="region">Auvergne-Rhône-Alpes</region>
<region type="old region">Rhône-Alpes</region>
<settlement type="city">Lyon</settlement>
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<name sortKey="Lenoir, Gilbert" sort="Lenoir, Gilbert" uniqKey="Lenoir G" first="Gilbert" last="Lenoir">Gilbert Lenoir</name>
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<name sortKey="Barkardottir, Rosa Bjork" sort="Barkardottir, Rosa Bjork" uniqKey="Barkardottir R" first="Rosa Bjork" last="Barkardottir">Rosa Bjork Barkardottir</name>
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<name sortKey="Egilsson, Valgardur" sort="Egilsson, Valgardur" uniqKey="Egilsson V" first="Valgardur" last="Egilsson">Valgardur Egilsson</name>
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<wicri:noCountry code="subField">Reykjavik</wicri:noCountry>
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<name sortKey="Hamann, Ute" sort="Hamann, Ute" uniqKey="Hamann U" first="Ute" last="Hamann">Ute Hamann</name>
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<country xml:lang="fr">Allemagne</country>
<wicri:regionArea>Division of Epidemiology and Molecular Genome Analysis, Deutsches Krebsforschungszentrum, Heidelberg</wicri:regionArea>
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<region type="land" nuts="1">Bade-Wurtemberg</region>
<region type="district" nuts="2">District de Karlsruhe</region>
<settlement type="city">Heidelberg</settlement>
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<name sortKey="Chang Claude, Jenny" sort="Chang Claude, Jenny" uniqKey="Chang Claude J" first="Jenny" last="Chang-Claude">Jenny Chang-Claude</name>
<affiliation wicri:level="3">
<country xml:lang="fr">Allemagne</country>
<wicri:regionArea>Division of Epidemiology and Molecular Genome Analysis, Deutsches Krebsforschungszentrum, Heidelberg</wicri:regionArea>
<placeName>
<region type="land" nuts="1">Bade-Wurtemberg</region>
<region type="district" nuts="2">District de Karlsruhe</region>
<settlement type="city">Heidelberg</settlement>
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</author>
<author>
<name sortKey="Sobol, Hagay" sort="Sobol, Hagay" uniqKey="Sobol H" first="Hagay" last="Sobol">Hagay Sobol</name>
<affiliation wicri:level="3">
<country xml:lang="fr">France</country>
<wicri:regionArea>Departement d'Oncologie-Genetique et Laboratoire d'Anatomie et de Cytologie Pathologiques, Institut National de la Santé et de la Recherche Médicale CRI 9703, Institut Paoli-Calmettes, Marseille</wicri:regionArea>
<placeName>
<region type="region">Provence-Alpes-Côte d'Azur</region>
<region type="old region">Provence-Alpes-Côte d'Azur</region>
<settlement type="city">Marseille</settlement>
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<author>
<name sortKey="Weber, Barbara" sort="Weber, Barbara" uniqKey="Weber B" first="Barbara" last="Weber">Barbara Weber</name>
<affiliation wicri:level="3">
<country>États-Unis</country>
<placeName>
<settlement type="city">Philadelphie</settlement>
<region type="state">Pennsylvanie</region>
</placeName>
<wicri:orgArea>University of Pennsylvania Cancer Center</wicri:orgArea>
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</author>
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<name sortKey="Stratton, Michael R" sort="Stratton, Michael R" uniqKey="Stratton M" first="Michael R." last="Stratton">Michael R. Stratton</name>
<affiliation wicri:level="1">
<country xml:lang="fr">Royaume-Uni</country>
<wicri:regionArea>Sections of Cancer Genetics, Epidemiology, and Cell Biology and Experimental Pathology, Institute of Cancer Research, Haddow Laboratories, Sutton, Surrey</wicri:regionArea>
<wicri:noRegion>Surrey</wicri:noRegion>
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<name sortKey="Easton, Douglas F" sort="Easton, Douglas F" uniqKey="Easton D" first="Douglas F." last="Easton">Douglas F. Easton</name>
<affiliation wicri:level="4">
<country xml:lang="fr">Royaume-Uni</country>
<wicri:regionArea>Cancer Research Campaign Genetic Epidemiology Group, Department of Community Medicine, Institute of Public Health, University of Cambridge</wicri:regionArea>
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<settlement type="city">Cambridge</settlement>
<region type="country">Angleterre</region>
<region type="région" nuts="1">Angleterre de l'Est</region>
</placeName>
<orgName type="university">Université de Cambridge</orgName>
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</analytic>
<monogr></monogr>
<series>
<title level="j">Journal of the National Cancer Institute</title>
<title level="j" type="abbrev">Journal of the National Cancer Institute</title>
<idno type="ISSN">0027-8874</idno>
<idno type="eISSN">1460-2105</idno>
<imprint>
<publisher>Oxford University Press</publisher>
<date type="published" when="1998-08-05">1998-08-05</date>
<biblScope unit="volume">90</biblScope>
<biblScope unit="issue">15</biblScope>
<biblScope unit="page" from="1138">1138</biblScope>
<biblScope unit="page" to="1145">1145</biblScope>
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<idno type="ISSN">0027-8874</idno>
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<idno type="ISSN">0027-8874</idno>
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<textClass>
<keywords scheme="KwdEn" xml:lang="en">
<term>C-Onc gene</term>
<term>Carcinoma</term>
<term>Differential diagnostic</term>
<term>Familial cancer</term>
<term>Female</term>
<term>Human</term>
<term>Mammary gland</term>
<term>Morphology</term>
<term>Mutation</term>
<term>Pathology</term>
<term>Protooncogene</term>
<term>Sporadic</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr">
<term>Anatomopathologie</term>
<term>Cancer familial</term>
<term>Carcinome</term>
<term>Diagnostic différentiel</term>
<term>Femelle</term>
<term>Glande mammaire</term>
<term>Gène BRCA1</term>
<term>Gène BRCA2</term>
<term>Gène onc cellulaire</term>
<term>Homme</term>
<term>Morphologie</term>
<term>Mutation</term>
<term>Protooncogène</term>
<term>Sporadique</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr">
<term>Homme</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract">Background: We have previously demonstrated that breast cancers associated with inherited BRCA1 and BRCA2 gene mutations differ from each other in their histopathologic appearances and that each of these types differs from breast cancers in patients unselected for family history (i.e., sporadic cancers). We have now conducted a more detailed examination of cytologic and architectural features of these tumors. Methods: Specimens of tumor tissue (5-µm-thick sections) were examined independently by two pathologists, who were unaware of the case or control subject status, for the presence of cell mitosis, lymphocytic infiltration, continuous pushing margins, and solid sheets of cancer cells; cell nuclei, cell nucleoli, cell necrosis, and cell borders were also evaluated. The resulting data were combined with previously available information on tumor type and tumor grade and further evaluated by multifactorial analysis. All statistical tests are two-sided. Results: Cancers associated with BRCA1 mutations exhibited higher mitotic counts (P = .001), a greater proportion of the tumor with a continuous pushing margin (P<.0001), and more lymphocytic infiltration (P = .002) than sporadic (i.e., control) cancers. Cancers associated with BRCA2 mutations exhibited a higher score for tubule formation (fewer tubules) (P = .0002), a higher proportion of the tumor perimeter with a continuous pushing margin (P<.0001), and a lower mitotic count (P = .003) than control cancers. Conclusions: Our study has identified key features of the histologic phenotypes of breast cancers in carriers of mutant BRCA1 and BRCA2 genes. This information may improve the classification of breast cancers in individuals with a family history of the disease and may ultimately aid in the clinical management of patients. [J Natl Cancer Inst 1998;90:1138–45]</div>
</front>
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<li>Suisse</li>
<li>États-Unis</li>
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