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Comprehensive evaluation of genetic variation in the IGF1 gene and risk of prostate cancer

Identifieur interne : 003998 ( PascalFrancis/Checkpoint ); précédent : 003997; suivant : 003999

Comprehensive evaluation of genetic variation in the IGF1 gene and risk of prostate cancer

Auteurs : Mattias Johansson [Suède] ; James D. Mckay [France, Australie] ; P R Stattin [Suède] ; Federico Canzian [France, Allemagne] ; Catherine Boillot [France] ; Fredrik Wiklund [Suède] ; Hans-Olov Adami [Suède, États-Unis] ; Katarina B Lter [Suède] ; Henrik Grönberg [Suède] ; Rudolf Kaaks [France, Allemagne]

Source :

RBID : Pascal:07-0071430

Descripteurs français

English descriptors

Abstract

Insulin-like growth factor-I (IGF1) stimulates cell proliferation, decreases apoptosis, and has been implicated in cancer development. Epidemiological studies have shown elevated levels of circulating IGF1 to be associated with increased risk of prostate cancer. To what extent genetic variation in the IGF1 gene is related to prostate cancer risk is largely unknown. We performed a comprehensive haplotype tagging (HT) assessment of single nucleotide polymorphisms (SNPs) representing the common haplotype variation in the IGF1 gene. We genotyped 10 SNPs (9 haplotype tagging SNPs (htSNPs)) within Cancer Prostate in Sweden (CAPS), a case-control study of 2,863 cases and 1,737 controls, in order to investigate if genetic variation in the IGF1 gene is associated with prostate cancer risk. Three haplotype blocks were identified across the IGF1 gene and 9 SNPs were selected as haplotype tagging SNPs. Common haplotypes in the block covering the 3' region of the IGF1 gene showed significant global association with prostate cancer risk (p = 0.004), with one particular haplotype giving an odds ratio of 1.46 (95% CI = 1.15-1.84, p = 0.002). This haplotype had a prevalence of 5% in the study population. Our results indicate that common variation in the IGF1 gene, particularly in the 3' region, may affect prostate cancer risk. Further studies on genetic variations in the IGF1 gene in relation to prostate cancer risk as well as to circulating levels of IGF1 are needed to confirm this novel finding.


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Pascal:07-0071430

Le document en format XML

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<s1>Genomic Epidemiology Group, German Cancer Institute (DKFZ)</s1>
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<name sortKey="B Lter, Katarina" sort="B Lter, Katarina" uniqKey="B Lter K" first="Katarina" last="B Lter">Katarina B Lter</name>
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<title level="j" type="main">International journal of cancer</title>
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<term>Cancerology</term>
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<term>Gene</term>
<term>Genetic variability</term>
<term>Genotype</term>
<term>Haplotype</term>
<term>Human</term>
<term>Insulin like growth factor 1</term>
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<term>Cancer prostate</term>
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<term>Facteur croissance IGF1</term>
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<term>Facteur risque</term>
<term>Epidémiologie</term>
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<div type="abstract" xml:lang="en">Insulin-like growth factor-I (IGF1) stimulates cell proliferation, decreases apoptosis, and has been implicated in cancer development. Epidemiological studies have shown elevated levels of circulating IGF1 to be associated with increased risk of prostate cancer. To what extent genetic variation in the IGF1 gene is related to prostate cancer risk is largely unknown. We performed a comprehensive haplotype tagging (HT) assessment of single nucleotide polymorphisms (SNPs) representing the common haplotype variation in the IGF1 gene. We genotyped 10 SNPs (9 haplotype tagging SNPs (htSNPs)) within Cancer Prostate in Sweden (CAPS), a case-control study of 2,863 cases and 1,737 controls, in order to investigate if genetic variation in the IGF1 gene is associated with prostate cancer risk. Three haplotype blocks were identified across the IGF1 gene and 9 SNPs were selected as haplotype tagging SNPs. Common haplotypes in the block covering the 3' region of the IGF1 gene showed significant global association with prostate cancer risk (p = 0.004), with one particular haplotype giving an odds ratio of 1.46 (95% CI = 1.15-1.84, p = 0.002). This haplotype had a prevalence of 5% in the study population. Our results indicate that common variation in the IGF1 gene, particularly in the 3' region, may affect prostate cancer risk. Further studies on genetic variations in the IGF1 gene in relation to prostate cancer risk as well as to circulating levels of IGF1 are needed to confirm this novel finding.</div>
</front>
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<s2>3</s2>
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<fA08 i1="01" i2="1" l="ENG">
<s1>Comprehensive evaluation of genetic variation in the IGF1 gene and risk of prostate cancer</s1>
</fA08>
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<s1>JOHANSSON (Mattias)</s1>
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<fA14 i1="05">
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<sZ>7 aut.</sZ>
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<fA14 i1="07">
<s1>Division of Cancer Epidemiology, German Cancer Research Center (DKFZ)</s1>
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<s0>Insulin-like growth factor-I (IGF1) stimulates cell proliferation, decreases apoptosis, and has been implicated in cancer development. Epidemiological studies have shown elevated levels of circulating IGF1 to be associated with increased risk of prostate cancer. To what extent genetic variation in the IGF1 gene is related to prostate cancer risk is largely unknown. We performed a comprehensive haplotype tagging (HT) assessment of single nucleotide polymorphisms (SNPs) representing the common haplotype variation in the IGF1 gene. We genotyped 10 SNPs (9 haplotype tagging SNPs (htSNPs)) within Cancer Prostate in Sweden (CAPS), a case-control study of 2,863 cases and 1,737 controls, in order to investigate if genetic variation in the IGF1 gene is associated with prostate cancer risk. Three haplotype blocks were identified across the IGF1 gene and 9 SNPs were selected as haplotype tagging SNPs. Common haplotypes in the block covering the 3' region of the IGF1 gene showed significant global association with prostate cancer risk (p = 0.004), with one particular haplotype giving an odds ratio of 1.46 (95% CI = 1.15-1.84, p = 0.002). This haplotype had a prevalence of 5% in the study population. Our results indicate that common variation in the IGF1 gene, particularly in the 3' region, may affect prostate cancer risk. Further studies on genetic variations in the IGF1 gene in relation to prostate cancer risk as well as to circulating levels of IGF1 are needed to confirm this novel finding.</s0>
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<s0>Cancer prostate</s0>
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<s5>03</s5>
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<s5>38</s5>
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<s5>39</s5>
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<s5>39</s5>
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<s0>Prostate pathologie</s0>
<s5>40</s5>
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<fC07 i1="05" i2="X" l="ENG">
<s0>Prostate disease</s0>
<s5>40</s5>
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<s5>40</s5>
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<s5>41</s5>
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<s5>41</s5>
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<s5>43</s5>
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<s5>45</s5>
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<li>États-Unis</li>
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<li>Bade-Wurtemberg</li>
<li>District de Karlsruhe</li>
<li>Massachusetts</li>
<li>Rhône-Alpes</li>
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<name sortKey="Stattin, P R" sort="Stattin, P R" uniqKey="Stattin P" first="P R" last="Stattin">P R Stattin</name>
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<name sortKey="Canzian, Federico" sort="Canzian, Federico" uniqKey="Canzian F" first="Federico" last="Canzian">Federico Canzian</name>
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<name sortKey="Kaaks, Rudolf" sort="Kaaks, Rudolf" uniqKey="Kaaks R" first="Rudolf" last="Kaaks">Rudolf Kaaks</name>
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<name sortKey="Adami, Hans Olov" sort="Adami, Hans Olov" uniqKey="Adami H" first="Hans-Olov" last="Adami">Hans-Olov Adami</name>
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