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Identification of a prostate cancer susceptibility gene on chromosome 5p13q12 associated with risk of both familial and sporadic disease

Identifieur interne : 008591 ( Main/Exploration ); précédent : 008590; suivant : 008592

Identification of a prostate cancer susceptibility gene on chromosome 5p13q12 associated with risk of both familial and sporadic disease

Auteurs : Liesel M. Fitzgerald [Australie] ; Briony Patterson [Australie] ; Russell Thomson [Australie] ; Andrea Polanowski [Australie] ; Stephen Quinn [Australie] ; Jesper Brohede [Suède] ; Timothy Thornton [États-Unis] ; David Challis [Australie] ; David A. Mackey [Australie] ; Terence Dwyer [Australie] ; Simon Foote [Australie] ; Garry N. Hannan [Australie] ; James Stankovich [Australie] ; James D. Mckay [Australie, France] ; Joanne L. Dickinson [Australie]

Source :

RBID : PMC:2986161

Abstract

Genetic heterogeneity is a difficulty frequently encountered in the search for genes conferring susceptibility to prostate cancer. To circumvent this issue, we selected a large prostate cancer pedigree for genome-wide linkage analysis from a population that is genetically homogeneous. Selected cases and first-degree relatives were genotyped with Affymetrix 10K SNP arrays, identifying a 14 Mb haplotype on chromosome 5 (5p13–q12) inherited identical-by-descent (IBD) by multiple cases. Microsatellite genotyping of additional deceased case samples confirmed that a total of eight cases inherited the common haplotype (P=0.0017). Re-sequencing of eight prioritised candidate genes in the region in six selected individuals identified 15 SNPs segregating with the IBD haplotype, located within the ITGA2 gene. Three of these polymorphisms were selected for genotyping in an independent Tasmanian data set comprising 127 cases with familial prostate cancer, 412 sporadic cases and 319 unaffected controls. Two were associated with prostate cancer risk: rs3212649 (OR=1.67 (1.07–2.6), P=0.0009) and rs1126643 (OR=1.52 (1.01–2.28), P=0.0088). Significant association was observed in both familial and sporadic prostate cancer. Although the functional SNP remains to be identified, considerable circumstantial evidence, provided by in vivo and in vitro studies, supports a role for ITGA2 in tumour development.


Url:
DOI: 10.1038/ejhg.2008.171
PubMed: 18830231
PubMed Central: 2986161


Affiliations:


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Le document en format XML

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<institution>International Agency for Research on Cancer</institution>
, Lyon,
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<p>Genetic heterogeneity is a difficulty frequently encountered in the search for genes conferring susceptibility to prostate cancer. To circumvent this issue, we selected a large prostate cancer pedigree for genome-wide linkage analysis from a population that is genetically homogeneous. Selected cases and first-degree relatives were genotyped with Affymetrix 10K SNP arrays, identifying a 14 Mb haplotype on chromosome 5 (5p13–q12) inherited identical-by-descent (IBD) by multiple cases. Microsatellite genotyping of additional deceased case samples confirmed that a total of eight cases inherited the common haplotype (
<italic>P</italic>
=0.0017). Re-sequencing of eight prioritised candidate genes in the region in six selected individuals identified 15 SNPs segregating with the IBD haplotype, located within the
<italic>ITGA2</italic>
gene. Three of these polymorphisms were selected for genotyping in an independent Tasmanian data set comprising 127 cases with familial prostate cancer, 412 sporadic cases and 319 unaffected controls. Two were associated with prostate cancer risk: rs3212649 (OR=1.67 (1.07–2.6),
<italic>P</italic>
=0.0009) and rs1126643 (OR=1.52 (1.01–2.28),
<italic>P</italic>
=0.0088). Significant association was observed in both familial and sporadic prostate cancer. Although the functional SNP remains to be identified, considerable circumstantial evidence, provided by
<italic>in vivo</italic>
and
<italic>in vitro</italic>
studies, supports a role for
<italic>ITGA2</italic>
in tumour development.</p>
</div>
</front>
</TEI>
<affiliations>
<list>
<country>
<li>Australie</li>
<li>France</li>
<li>Suède</li>
<li>États-Unis</li>
</country>
</list>
<tree>
<country name="Australie">
<noRegion>
<name sortKey="Fitzgerald, Liesel M" sort="Fitzgerald, Liesel M" uniqKey="Fitzgerald L" first="Liesel M" last="Fitzgerald">Liesel M. Fitzgerald</name>
</noRegion>
<name sortKey="Challis, David" sort="Challis, David" uniqKey="Challis D" first="David" last="Challis">David Challis</name>
<name sortKey="Dickinson, Joanne L" sort="Dickinson, Joanne L" uniqKey="Dickinson J" first="Joanne L" last="Dickinson">Joanne L. Dickinson</name>
<name sortKey="Dwyer, Terence" sort="Dwyer, Terence" uniqKey="Dwyer T" first="Terence" last="Dwyer">Terence Dwyer</name>
<name sortKey="Dwyer, Terence" sort="Dwyer, Terence" uniqKey="Dwyer T" first="Terence" last="Dwyer">Terence Dwyer</name>
<name sortKey="Foote, Simon" sort="Foote, Simon" uniqKey="Foote S" first="Simon" last="Foote">Simon Foote</name>
<name sortKey="Hannan, Garry N" sort="Hannan, Garry N" uniqKey="Hannan G" first="Garry N" last="Hannan">Garry N. Hannan</name>
<name sortKey="Hannan, Garry N" sort="Hannan, Garry N" uniqKey="Hannan G" first="Garry N" last="Hannan">Garry N. Hannan</name>
<name sortKey="Mackey, David A" sort="Mackey, David A" uniqKey="Mackey D" first="David A" last="Mackey">David A. Mackey</name>
<name sortKey="Mackey, David A" sort="Mackey, David A" uniqKey="Mackey D" first="David A" last="Mackey">David A. Mackey</name>
<name sortKey="Mackey, David A" sort="Mackey, David A" uniqKey="Mackey D" first="David A" last="Mackey">David A. Mackey</name>
<name sortKey="Mckay, James D" sort="Mckay, James D" uniqKey="Mckay J" first="James D" last="Mckay">James D. Mckay</name>
<name sortKey="Patterson, Briony" sort="Patterson, Briony" uniqKey="Patterson B" first="Briony" last="Patterson">Briony Patterson</name>
<name sortKey="Polanowski, Andrea" sort="Polanowski, Andrea" uniqKey="Polanowski A" first="Andrea" last="Polanowski">Andrea Polanowski</name>
<name sortKey="Quinn, Stephen" sort="Quinn, Stephen" uniqKey="Quinn S" first="Stephen" last="Quinn">Stephen Quinn</name>
<name sortKey="Stankovich, James" sort="Stankovich, James" uniqKey="Stankovich J" first="James" last="Stankovich">James Stankovich</name>
<name sortKey="Stankovich, James" sort="Stankovich, James" uniqKey="Stankovich J" first="James" last="Stankovich">James Stankovich</name>
<name sortKey="Thomson, Russell" sort="Thomson, Russell" uniqKey="Thomson R" first="Russell" last="Thomson">Russell Thomson</name>
</country>
<country name="Suède">
<noRegion>
<name sortKey="Brohede, Jesper" sort="Brohede, Jesper" uniqKey="Brohede J" first="Jesper" last="Brohede">Jesper Brohede</name>
</noRegion>
</country>
<country name="États-Unis">
<noRegion>
<name sortKey="Thornton, Timothy" sort="Thornton, Timothy" uniqKey="Thornton T" first="Timothy" last="Thornton">Timothy Thornton</name>
</noRegion>
</country>
<country name="France">
<noRegion>
<name sortKey="Mckay, James D" sort="Mckay, James D" uniqKey="Mckay J" first="James D" last="Mckay">James D. Mckay</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>

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