Bonald C. Figueiredo , Florent Dupont , Geoffrey Portelli , Tatiana E.J. Costa , Gislaine Custódio , Mariana M. Paraizo , Heloisa Komechen , Hadrien Gascuel , Maxime Bottau , Elodie Callea , Ana Paula Percicote , Leila G. Telles , Mehdi Jendoubi , Enzo Lalli
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Thus, we aimed to investigate whether genetic variants exist which are associated with an increased risk of developing ACT in <em>TP53</em> p.R337H carrier children.</p></div><div><h3>Methods</h3><p>A genetic association study was conducted in trios of children (14 girls, 7 boys) from southern Brazil carriers of <em>TP53</em> p.R337H with (<em>n</em> = 18) or without (<em>n</em> = 3) ACT and their parents, one of whom also carries this pathogenic variant (discovery cohort). Results were confirmed in a validation cohort of <em>TP53</em> p.R337H carriers with (<em>n</em> = 90; 68 girls, 22 boys) or without ACT (<em>n</em> = 302; 165 women, 137 men).</p></div><div><h3>Findings</h3><p>We analysed genomic data from whole exome sequencing of blood DNA from the trios. Using deep learning algorithms, according to a model where the affected child inherits from the non-carrier parent variant(s) increasing the risk of developing ACT, we found a significantly enriched representation of non-coding variants in genes involved in the cyclic AMP (cAMP) pathway known to be involved in adrenocortical tumorigenesis. One among those variants (rs2278986 in the <em>SCARB1</em> gene) was confirmed to be significantly enriched in the validation cohort of <em>TP53</em> p.R337H carriers with ACT compared to carriers without ACT (OR 1.858; 95% CI 1.146, 3.042, p = 0.01).</p></div><div><h3>Interpretation</h3><p>Profiling of the variant rs2278986 is a candidate for future confirmation and possible use as a tool for ACT risk stratification in <em>TP53</em> p.R337H carriers.</p></div><div><h3>Funding</h3><p><span>Centre National de la Recherche Scientifique</span> (CNRS), <span>Behring Foundation</span>, <span>Conselho Nacional de Desenvolvimento Científico e Tecnológico</span> (CNPq).</p></div>","PeriodicalId":29783,"journal":{"name":"Lancet Regional Health-Americas","volume":"38 ","pages":"Article 100863"},"PeriodicalIF":7.0000,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667193X2400190X/pdfft?md5=a1febed3f3ea3fb3dd7ea58e92302897&pid=1-s2.0-S2667193X2400190X-main.pdf","citationCount":"0","resultStr":"{\"title\":\"AI-guided identification of risk variants for adrenocortical tumours in TP53 p.R337H carrier children: a genetic association study\",\"authors\":\"Bonald C. 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Thus, we aimed to investigate whether genetic variants exist which are associated with an increased risk of developing ACT in <em>TP53</em> p.R337H carrier children.</p></div><div><h3>Methods</h3><p>A genetic association study was conducted in trios of children (14 girls, 7 boys) from southern Brazil carriers of <em>TP53</em> p.R337H with (<em>n</em> = 18) or without (<em>n</em> = 3) ACT and their parents, one of whom also carries this pathogenic variant (discovery cohort). Results were confirmed in a validation cohort of <em>TP53</em> p.R337H carriers with (<em>n</em> = 90; 68 girls, 22 boys) or without ACT (<em>n</em> = 302; 165 women, 137 men).</p></div><div><h3>Findings</h3><p>We analysed genomic data from whole exome sequencing of blood DNA from the trios. Using deep learning algorithms, according to a model where the affected child inherits from the non-carrier parent variant(s) increasing the risk of developing ACT, we found a significantly enriched representation of non-coding variants in genes involved in the cyclic AMP (cAMP) pathway known to be involved in adrenocortical tumorigenesis. One among those variants (rs2278986 in the <em>SCARB1</em> gene) was confirmed to be significantly enriched in the validation cohort of <em>TP53</em> p.R337H carriers with ACT compared to carriers without ACT (OR 1.858; 95% CI 1.146, 3.042, p = 0.01).</p></div><div><h3>Interpretation</h3><p>Profiling of the variant rs2278986 is a candidate for future confirmation and possible use as a tool for ACT risk stratification in <em>TP53</em> p.R337H carriers.</p></div><div><h3>Funding</h3><p><span>Centre National de la Recherche Scientifique</span> (CNRS), <span>Behring Foundation</span>, <span>Conselho Nacional de Desenvolvimento Científico e Tecnológico</span> (CNPq).</p></div>\",\"PeriodicalId\":29783,\"journal\":{\"name\":\"Lancet Regional Health-Americas\",\"volume\":\"38 \",\"pages\":\"Article 100863\"},\"PeriodicalIF\":7.0000,\"publicationDate\":\"2024-08-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2667193X2400190X/pdfft?md5=a1febed3f3ea3fb3dd7ea58e92302897&pid=1-s2.0-S2667193X2400190X-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Lancet Regional Health-Americas\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2667193X2400190X\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"HEALTH CARE SCIENCES & SERVICES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Lancet Regional Health-Americas","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2667193X2400190X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"HEALTH CARE SCIENCES & SERVICES","Score":null,"Total":0}
AI-guided identification of risk variants for adrenocortical tumours in TP53 p.R337H carrier children: a genetic association study
Background
Adrenocortical tumours (ACT) in children are part of the Li-Fraumeni cancer spectrum and are frequently associated with a germline TP53 pathogenic variant. TP53 p.R337H is highly prevalent in the south and southeast of Brazil and predisposes to ACT with low penetrance. Thus, we aimed to investigate whether genetic variants exist which are associated with an increased risk of developing ACT in TP53 p.R337H carrier children.
Methods
A genetic association study was conducted in trios of children (14 girls, 7 boys) from southern Brazil carriers of TP53 p.R337H with (n = 18) or without (n = 3) ACT and their parents, one of whom also carries this pathogenic variant (discovery cohort). Results were confirmed in a validation cohort of TP53 p.R337H carriers with (n = 90; 68 girls, 22 boys) or without ACT (n = 302; 165 women, 137 men).
Findings
We analysed genomic data from whole exome sequencing of blood DNA from the trios. Using deep learning algorithms, according to a model where the affected child inherits from the non-carrier parent variant(s) increasing the risk of developing ACT, we found a significantly enriched representation of non-coding variants in genes involved in the cyclic AMP (cAMP) pathway known to be involved in adrenocortical tumorigenesis. One among those variants (rs2278986 in the SCARB1 gene) was confirmed to be significantly enriched in the validation cohort of TP53 p.R337H carriers with ACT compared to carriers without ACT (OR 1.858; 95% CI 1.146, 3.042, p = 0.01).
Interpretation
Profiling of the variant rs2278986 is a candidate for future confirmation and possible use as a tool for ACT risk stratification in TP53 p.R337H carriers.
Funding
Centre National de la Recherche Scientifique (CNRS), Behring Foundation, Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq).
期刊介绍:
The Lancet Regional Health – Americas, an open-access journal, contributes to The Lancet's global initiative by focusing on health-care quality and access in the Americas. It aims to advance clinical practice and health policy in the region, promoting better health outcomes. The journal publishes high-quality original research advocating change or shedding light on clinical practice and health policy. It welcomes submissions on various regional health topics, including infectious diseases, non-communicable diseases, child and adolescent health, maternal and reproductive health, emergency care, health policy, and health equity.