Human GeneticsPub Date : 2024-12-01Epub Date: 2024-11-14DOI: 10.1007/s00439-024-02716-8
Dovini Jayasinghe, Setegn Eshetie, Kerri Beckmann, Beben Benyamin, S Hong Lee
{"title":"Advancements and limitations in polygenic risk score methods for genomic prediction: a scoping review.","authors":"Dovini Jayasinghe, Setegn Eshetie, Kerri Beckmann, Beben Benyamin, S Hong Lee","doi":"10.1007/s00439-024-02716-8","DOIUrl":"10.1007/s00439-024-02716-8","url":null,"abstract":"<p><p>This scoping review aims to identify and evaluate the landscape of Polygenic Risk Score (PRS)-based methods for genomic prediction from 2013 to 2023, highlighting their advancements, key concepts, and existing gaps in knowledge, research, and technology. Over the past decade, various PRS-based methods have emerged, each employing different statistical frameworks aimed at enhancing prediction accuracy, processing speed and memory efficiency. Despite notable advancements, challenges persist, including unrealistic assumptions regarding sample sizes and the polygenicity of traits necessary for accurate predictions, as well as limitations in exploring hyper-parameter spaces and considering environmental interactions. We included studies focusing on PRS-based methods for risk prediction that underwent methodological evaluations using valid approaches and released computational tools/software. Additionally, we restricted our selection to studies involving human participants that were published in English language. This review followed the standard protocol recommended by Joanna Briggs Institute Reviewer's Manual, systematically searching Ovid MEDLINE, Ovid Embase, Scopus and Web of Science databases. Additionally, searches included grey literature sources like pre-print servers such as bioRxiv, and articles recommended by experts to ensure comprehensive and diverse coverage of relevant records. This study identified 34 studies detailing 37 genomic prediction methods, the majority of which rely on linkage disequilibrium (LD) information and necessitate hyper-parameter tuning. Nine methods integrate functional/gene annotation, while 12 are suitable for cross-ancestry genomic prediction, with only one considering gene-environment (GxE) interaction. While some methods require individual-level data, most leverage summary statistics, offering flexibility. Despite progress, challenges remain. These include computational complexity and the need for large sample sizes for high prediction accuracy. Furthermore, recent methods exhibit varying effectiveness across traits, with absolute accuracies often falling short of clinical utility. Transferability across ancestries varies, influenced by trait heritability and diversity of training data, while handling admixed populations remains challenging. Additionally, the absence of standard error measurements for individual PRSs, crucial in clinical settings, underscores a critical gap. Another issue is the lack of customizable graphical visualization tools among current software packages. While genomic prediction methods have advanced significantly, there is still room for improvement. Addressing current challenges and embracing future research directions will lead to the development of more universally applicable, robust, and clinically relevant genomic prediction tools.</p>","PeriodicalId":13175,"journal":{"name":"Human Genetics","volume":" ","pages":"1401-1431"},"PeriodicalIF":3.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142619298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Human GeneticsPub Date : 2024-12-01Epub Date: 2024-10-24DOI: 10.1007/s00439-024-02709-7
Siyu Pu, Zhibo Wang, Xueyang Tang, Daoxi Wang, Xiaodong Yang, Jun Jiang, Yifan Deng, Bo Xiang, Jiayin Yang, Xiaoli Wang, Xuesong Guo, Miao Sun, Bin Wang, Jing Chen
{"title":"Genetic analysis of preaxial polydactyly: identification of novel variants and the role of ZRS duplications in a Chinese cohort of 102 cases.","authors":"Siyu Pu, Zhibo Wang, Xueyang Tang, Daoxi Wang, Xiaodong Yang, Jun Jiang, Yifan Deng, Bo Xiang, Jiayin Yang, Xiaoli Wang, Xuesong Guo, Miao Sun, Bin Wang, Jing Chen","doi":"10.1007/s00439-024-02709-7","DOIUrl":"10.1007/s00439-024-02709-7","url":null,"abstract":"<p><p>Preaxial polydactyly (PPD) is a congenital limb malformation, previously reported to be caused primarily by variants in the ZRS and upstream preZRS regions. This study investigated genetic variations associated with PPD, focusing on point variants and copy number variations (CNVs) in the ZRS and preZRS regions. Comprehensive genetic analyses were conducted on 102 patients with PPD, including detailed clinical examinations and Sanger sequencing of the ZRS and preZRS regions. Additionally, real-time quantitative PCR (qPCR) was used to detect CNVs in the ZRS region. The evolutionary conservation and population frequencies of identified variants were also evaluated. Six point variants were identified, among which four are likely pathogenic novel variants: 93G > T (g.156584477G > T), 106G > A (g.156584464G > A), 278G > A (g.156584292G > A), and 409A > C (g.156585378A > C). Additionally, qPCR analysis revealed that 66.67% of patients exhibited ZRS duplications. Notably, these duplications were also present in cases with newly identified potential pathogenic point variants. These findings suggest the possible interaction of point variants in ZRS and preZRS through a common pathogenic mechanism, leading jointly to PPD. The findings expand the variant spectrum associated with non-syndromic polydactyly and highlight that, despite different classifications, anterior polydactyly caused by variants in ZRS and nearby regions may share common pathogenic mechanisms. The incorporation of various variant types in genetic screening can effectively enhance the rate of pathogenic variant detection and contribute to the cost-effectiveness of genetic testing for limb developmental defects, thereby promoting healthy births.</p>","PeriodicalId":13175,"journal":{"name":"Human Genetics","volume":" ","pages":"1433-1444"},"PeriodicalIF":3.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142499442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Human GeneticsPub Date : 2024-12-01Epub Date: 2024-10-25DOI: 10.1007/s00439-024-02708-8
Prashant Sharma, Jason R McFadden, F Graeme Frost, Thomas C Markello, Dorothy K Grange, Wendy J Introne, William A Gahl, May Christine V Malicdan
{"title":"Biallelic germline DDX41 variants in a patient with bone dysplasia, ichthyosis, and dysmorphic features.","authors":"Prashant Sharma, Jason R McFadden, F Graeme Frost, Thomas C Markello, Dorothy K Grange, Wendy J Introne, William A Gahl, May Christine V Malicdan","doi":"10.1007/s00439-024-02708-8","DOIUrl":"10.1007/s00439-024-02708-8","url":null,"abstract":"<p><p>DDX41 (DEAD‑box helicase 41) is a member of the largest family of RNA helicases. The DEAD-box RNA helicases share a highly conserved core structure and regulate all aspects of RNA metabolism. The functional role of DDX41 in innate immunity is also highly conserved. DDX41 acts as a sensor of viral DNA and activates the STING-TBK1-IRF3-type I IFN signaling pathway. Germline heterozygous variants in DDX41 have been reported in familial myelodysplasia syndrome (MDS)/acute myeloid leukemia (AML) patients; most patients also acquired a somatic variant in the second DDX41 allele. Here, we report a patient who inherited compound heterozygous DDX41 variants and presented with bone dysplasia, ichthyosis, and dysmorphic features. Functional analyses of the patient-derived dermal fibroblasts revealed a reduced abundance of DDX41 and abrogated activation of the IFN genes through the STING-type I interferon pathway. Genome-wide transcriptome analyses in the patient's fibroblasts revealed significant gene dysregulation and changes in the RNA splicing events. The patient's fibroblasts also displayed upregulation of periostin mRNA expression. Using an RNA binding protein assay, we identified DDX41 as a novel regulator of periostin expression. Our results suggest that functional impairment of DDX41, along with dysregulated periostin expression, likely contributes to this patient's multisystem disorder.</p>","PeriodicalId":13175,"journal":{"name":"Human Genetics","volume":" ","pages":"1445-1457"},"PeriodicalIF":3.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11576897/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142499441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Human GeneticsPub Date : 2024-12-01Epub Date: 2024-10-28DOI: 10.1007/s00439-024-02711-z
Robin-Tobias Jauss, Bernt Popp, Joachim Bachmann, Rami Abou Jamra, Konrad Platzer
{"title":"The MorbidGenes panel: a monthly updated list of diagnostically relevant rare disease genes derived from diverse sources.","authors":"Robin-Tobias Jauss, Bernt Popp, Joachim Bachmann, Rami Abou Jamra, Konrad Platzer","doi":"10.1007/s00439-024-02711-z","DOIUrl":"10.1007/s00439-024-02711-z","url":null,"abstract":"<p><strong>Purpose: </strong>With exome sequencing now standard, diagnostic labs are in need of a, in principle, to-the-day-accurate list of genes associated with rare diseases. Manual curation efforts are slow and often disease specific, while efforts relying on single sources are too inaccurate and may result in false-positive or false-negative genes.</p><p><strong>Methods: </strong>We established the MorbidGenes panel based on a list of publicly available databases: OMIM, PanelApp, SysNDD, ClinVar, HGMD and GenCC. A simple logic allows inclusion of genes that are supported by at least one of these sources, providing a list of all genes with diagnostic relevance.</p><p><strong>Results: </strong>The panel is freely available at https://morbidgenes.uni-leipzig.de and currently includes 5037 genes (as of October 2024) with minimally sufficient evidence on disease causality to classify them as diagnostically relevant.</p><p><strong>Conclusion: </strong>The MorbidGenes panel is an open and comprehensive overview of diagnostically relevant rare disease genes based on a diverse set of resources. The panel is updated monthly to keep up with the ever increasing number of rare disease genes.</p>","PeriodicalId":13175,"journal":{"name":"Human Genetics","volume":" ","pages":"1459-1463"},"PeriodicalIF":3.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11576763/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142499443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Human GeneticsPub Date : 2024-12-01Epub Date: 2024-11-02DOI: 10.1007/s00439-024-02715-9
Mónica Lopes-Marques, M João Peixoto, David N Cooper, M João Prata, Luísa Azevedo, L Filipe C Castro
{"title":"Polymorphic pseudogenes in the human genome - a comprehensive assessment.","authors":"Mónica Lopes-Marques, M João Peixoto, David N Cooper, M João Prata, Luísa Azevedo, L Filipe C Castro","doi":"10.1007/s00439-024-02715-9","DOIUrl":"10.1007/s00439-024-02715-9","url":null,"abstract":"<p><strong>Background: </strong>Over the past decade, variations of the coding portion of the human genome have become increasingly evident. In this study, we focus on polymorphic pseudogenes, a unique and relatively unexplored type of pseudogene whose inactivating mutations have not yet been fixed in the human genome at the global population level. Thus, polymorphic pseudogenes are characterized by the presence in the population of both coding alleles and non-coding alleles originating from Loss-of-Function (LoF) mutations. These alleles can be found both in heterozygosity and in homozygosity in different human populations and thus represent pseudogenes that have not yet been fixed in the population.</p><p><strong>Results: </strong>A methodical cross-population analysis of 232 polymorphic pseudogenes, including 35 new examples, reveals that human olfactory signalling, drug metabolism and immunity are among the systems most impacted by the variable presence of LoF variants at high frequencies. Within this dataset, a total of 179 genes presented polymorphic LoF variants in all analysed populations. Transcriptome and proteome analysis confirmed that although these genes may harbour LoF alleles, when the coding allele is present, the gene remains active and can play a functional role in various metabolic pathways, including drug/xenobiotic metabolism and immunity. The observation that many polymorphic pseudogenes are members of multigene families argues that genetic redundancy may play a key role in compensating for the inactivation of one paralogue.</p><p><strong>Conclusions: </strong>The distribution, expression and integration of cellular/biological networks in relation to human polymorphic pseudogenes, provide novel insights into the architecture of the human genome and the dynamics of gene gain and loss with likely functional impact.</p>","PeriodicalId":13175,"journal":{"name":"Human Genetics","volume":" ","pages":"1465-1479"},"PeriodicalIF":3.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11576641/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142564379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Human GeneticsPub Date : 2024-12-01Epub Date: 2024-11-06DOI: 10.1007/s00439-024-02712-y
Vianney Cortés-González, Miguel Rodriguez-Morales, Paris Ataliotis, Claudine Mayer, Julie Plaisancié, Nicolas Chassaing, Hane Lee, Jean-Michel Rozet, Florencia Cavodeassi, Lucas Fares Taie
{"title":"Homozygosity for a hypomorphic mutation in frizzled class receptor 5 causes syndromic ocular coloboma with microcornea in humans.","authors":"Vianney Cortés-González, Miguel Rodriguez-Morales, Paris Ataliotis, Claudine Mayer, Julie Plaisancié, Nicolas Chassaing, Hane Lee, Jean-Michel Rozet, Florencia Cavodeassi, Lucas Fares Taie","doi":"10.1007/s00439-024-02712-y","DOIUrl":"10.1007/s00439-024-02712-y","url":null,"abstract":"<p><p>Ocular coloboma (OC) is a congenital disorder caused by the incomplete closure of the embryonic ocular fissure. OC can present as a simple anomaly or, in more complex forms, be associated with additional ocular abnormalities. It can occur in isolation or as part of a broader syndrome, exhibiting considerable genetic heterogeneity. Diagnostic yield for OC remains below 30%, indicating the need for further genetic exploration. Mutations in the Wnt receptor FZD5, which is expressed throughout eye development, have been linked to both isolated and complex forms of coloboma. These mutations often result in a dominant-negative effect, where the mutated FZD5 protein disrupts WNT signaling by sequestering WNT ligands. Here, we describe a case of syndromic bilateral OC with additional features such as microcornea, bone developmental anomalies, and mild intellectual disability. Whole exome sequencing revealed a homozygous rare missense variant in FZD5. Consistent with a loss-of-function effect, overexpressing of fzd5 mRNA harboring the missense variant in zebrafish embryos does not influence embryonic development, whereas overexpression of wild-type fzd5 mRNA results in body axis duplications. However, in vitro TOPFlash assays revealed that the missense variant only caused partial loss-of-function, behaving as a hypomorphic mutation. We further showed that the mutant protein still localized to the cell membrane and maintained proper conformation when modeled in silico, suggesting that the impairment lies in signal transduction. This hypothesis is further supported by the fact that the variant affects a highly conserved amino acid known to be crucial for protein-protein interactions.</p>","PeriodicalId":13175,"journal":{"name":"Human Genetics","volume":" ","pages":"1509-1521"},"PeriodicalIF":3.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11576812/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142582716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Human GeneticsPub Date : 2024-12-01Epub Date: 2024-11-06DOI: 10.1007/s00439-024-02713-x
Estefanía Martínez-Barrios, Andrea Greco, José Cruzalegui, Sergi Cesar, Nuria Díez-Escuté, Patricia Cerralbo, Fredy Chipa, Irene Zschaeck, Leonel Slanovic, Alipio Mangas, Rocío Toro, Josep Brugada, Georgia Sarquella-Brugada, Oscar Campuzano
{"title":"Interpreting the actionable clinical role of rare variants associated with short QT syndrome.","authors":"Estefanía Martínez-Barrios, Andrea Greco, José Cruzalegui, Sergi Cesar, Nuria Díez-Escuté, Patricia Cerralbo, Fredy Chipa, Irene Zschaeck, Leonel Slanovic, Alipio Mangas, Rocío Toro, Josep Brugada, Georgia Sarquella-Brugada, Oscar Campuzano","doi":"10.1007/s00439-024-02713-x","DOIUrl":"10.1007/s00439-024-02713-x","url":null,"abstract":"<p><p>Genetic testing is recommended in the diagnosis of short QT syndrome. This rare inherited lethal entity is characterized by structural normal hearts with short QT intervals in the electrocardiogram. Few families diagnosed with this arrhythmogenic disease have been reported worldwide so far, impeding a comprehensive understanding of this syndrome. Unraveling the origin of the disease helps to the early identification of genetic carriers at risk. However, only rare variants with a definite deleterious role should be actionable in clinical practice. Our aim was to perform a comprehensive update and reinterpretation, according to the American College of Medical Genetics and Genomics recommendations of all rare variants currently associated with short QT syndrome. We identified 34 rare variants. Reanalysis showed that only nine variants played a deleterious role associated with a definite short QT syndrome phenotype. These variants were located in the four main genes: KCNQ1, KCNH2, KCNJ2 or SLC4A3. Additional rare variants located in other genes were associated with other conditions with phenotypic shortened QT intervals, but not definite diagnosis of short QT syndrome. Periodically updating of rare variants, especially those previously classified as unknown, helps to clarify the role of rare variants and translate genetic data into clinical practice.</p>","PeriodicalId":13175,"journal":{"name":"Human Genetics","volume":" ","pages":"1499-1508"},"PeriodicalIF":3.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11576798/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142582718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Human GeneticsPub Date : 2024-12-01Epub Date: 2024-11-04DOI: 10.1007/s00439-024-02707-9
Cassie E Stylianou, George A R Wiggins, Vanessa L Lau, Joe Dennis, Andrew N Shelling, Michelle Wilson, Peter Sykes, Frederic Amant, Daniela Annibali, Wout De Wispelaere, Douglas F Easton, Peter A Fasching, Dylan M Glubb, Ellen L Goode, Diether Lambrechts, Paul D P Pharoah, Rodney J Scott, Emma Tham, Ian Tomlinson, Manjeet K Bolla, Fergus J Couch, Kamila Czene, Thilo Dörk, Alison M Dunning, Olivia Fletcher, Montserrat García-Closas, Reiner Hoppe, Helena Jernström, Rudolf Kaaks, Kyriaki Michailidou, Nadia Obi, Melissa C Southey, Jennifer Stone, Qin Wang, Amanda B Spurdle, Tracy A O'Mara, John Pearson, Logan C Walker
{"title":"Germline copy number variants and endometrial cancer risk.","authors":"Cassie E Stylianou, George A R Wiggins, Vanessa L Lau, Joe Dennis, Andrew N Shelling, Michelle Wilson, Peter Sykes, Frederic Amant, Daniela Annibali, Wout De Wispelaere, Douglas F Easton, Peter A Fasching, Dylan M Glubb, Ellen L Goode, Diether Lambrechts, Paul D P Pharoah, Rodney J Scott, Emma Tham, Ian Tomlinson, Manjeet K Bolla, Fergus J Couch, Kamila Czene, Thilo Dörk, Alison M Dunning, Olivia Fletcher, Montserrat García-Closas, Reiner Hoppe, Helena Jernström, Rudolf Kaaks, Kyriaki Michailidou, Nadia Obi, Melissa C Southey, Jennifer Stone, Qin Wang, Amanda B Spurdle, Tracy A O'Mara, John Pearson, Logan C Walker","doi":"10.1007/s00439-024-02707-9","DOIUrl":"10.1007/s00439-024-02707-9","url":null,"abstract":"<p><p>Known risk loci for endometrial cancer explain approximately one third of familial endometrial cancer. However, the association of germline copy number variants (CNVs) with endometrial cancer risk remains relatively unknown. We conducted a genome-wide analysis of rare CNVs overlapping gene regions in 4115 endometrial cancer cases and 17,818 controls to identify functionally relevant variants associated with disease. We identified a 1.22-fold greater number of CNVs in DNA samples from cases compared to DNA samples from controls (p = 4.4 × 10<sup>-63</sup>). Under three models of putative CNV impact (deletion, duplication, and loss of function), genome-wide association studies identified 141 candidate gene loci associated (p < 0.01) with endometrial cancer risk. Pathway analysis of the candidate loci revealed an enrichment of genes involved in the 16p11.2 proximal deletion syndrome, driven by a large recurrent deletion (chr16:29,595,483-30,159,693) identified in 0.15% of endometrial cancer cases and 0.02% of control participants. Together, these data provide evidence that rare copy number variants have a role in endometrial cancer susceptibility and that the proximal 16p11.2 BP4-BP5 region contains 25 candidate risk gene(s) that warrant further analysis to better understand their role in human disease.</p>","PeriodicalId":13175,"journal":{"name":"Human Genetics","volume":" ","pages":"1481-1498"},"PeriodicalIF":3.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11576655/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142567991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Integrating transcriptomic and polygenic risk scores to enhance predictive accuracy for ischemic stroke subtypes.","authors":"Xuehong Cai, Haochang Li, Xiaoxiao Cao, Xinyan Ma, Wenhao Zhu, Lei Xu, Sheng Yang, Rongbin Yu, Peng Huang","doi":"10.1007/s00439-024-02717-7","DOIUrl":"https://doi.org/10.1007/s00439-024-02717-7","url":null,"abstract":"<p><p>Ischemic stroke (IS), characterized by complex etiological diversity, is a significant global health challenge. Recent advancements in genome-wide association studies (GWAS) and transcriptomic profiling offer promising avenues for enhanced risk prediction and understanding of disease mechanisms. GWAS summary statistics from the GIGASTROKE Consortium and genetic and phenotypic data from the UK Biobank (UKB) were used. Transcriptome-Wide Association Studies (TWAS) were conducted using FUSION to identify genes associated with IS and its subtypes across eight tissues. Colocalization analysis identified shared genetic variants influencing both gene expression and disease risk. Sum Transcriptome-Polygenic Risk Scores (STPRS) models were constructed by combining polygenic risk scores (PRS) and polygenic transcriptome risk scores (PTRS) using logistic regression. The predictive performance of STPRS was evaluated using the area under the curve (AUC). A Phenome-wide association study (PheWAS) explored associations between STPRS and various phenotypes. TWAS identified 34 susceptibility genes associated with IS and its subtypes. Colocalization analysis revealed 18 genes with a posterior probability (PP) H4 > 75% for joint expression quantitative trait loci (eQTL) and GWAS associations, highlighting their genetic relevance. The STPRS models demonstrated superior predictive accuracy compared to conventional PRS, showing significant associations with numerous UKB phenotypes, including atrial fibrillation and blood pressure. Integrating transcriptomic data with polygenic risk scores through STPRS enhances predictive accuracy for IS and its subtypes. This approach refines our understanding of the genetic and molecular landscape of stroke and paves the way for tailored preventive and therapeutic strategies.</p>","PeriodicalId":13175,"journal":{"name":"Human Genetics","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142647531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Human GeneticsPub Date : 2024-11-04DOI: 10.1007/s00439-024-02714-w
Qi-Gang Zhao, Xin-Ling Ma, Qian Xu, Zi-Tong Song, Fan Bu, Kuan Li, Bai-Xue Han, Shan-Shan Yan, Lei Zhang, Yuan Luo, Yu-Fang Pei
{"title":"Integrative analysis of transcriptome and proteome wide association studies prioritized functional genes for obesity.","authors":"Qi-Gang Zhao, Xin-Ling Ma, Qian Xu, Zi-Tong Song, Fan Bu, Kuan Li, Bai-Xue Han, Shan-Shan Yan, Lei Zhang, Yuan Luo, Yu-Fang Pei","doi":"10.1007/s00439-024-02714-w","DOIUrl":"https://doi.org/10.1007/s00439-024-02714-w","url":null,"abstract":"<p><strong>Background: </strong>Genome-wide association studies have identified dozens of genomic loci for obesity. However, functional genes and their detailed genetic mechanisms underlying these loci are mainly unknown. In this study, we conducted an integrative study to prioritize plausibly functional genes by combining information from genome-, transcriptome- and proteome-wide association analyses.</p><p><strong>Methods: </strong>We first conducted proteome-wide association analyses and transcriptome-wide association analyses for the six obesity-related traits. We then performed colocalization analysis on the identified loci shared between the proteome- and transcriptome-association analyses. Finally, we validated the identified genes with other plasma/blood reference panels. The highlighted genes were assessed for expression of other tissues, single-cell and tissue specificity, and druggability.</p><p><strong>Results: </strong>We prioritized 4 high-confidence genes (FASN, ICAM1, PDCD6IP, and YWHAB) by proteome-wide association studies, transcriptome-wide association studies, and colocalization analyses, which consistently influenced the variation of obesity traits at both mRNA and protein levels. These 4 genes were successfully validated using other plasma/blood reference panels. These 4 genes shared regulatory structures in obesity-related tissues. Single-cell and tissue-specific analyses showed that FASN and ICAM1 were explicitly expressed in metabolism- and immunity-related tissues and cells. Furthermore, FASN and ICAM1 had been developed as drug targets.</p><p><strong>Conclusion: </strong>Our study provided novel promising protein targets for further mechanistic and therapeutic studies of obesity.</p>","PeriodicalId":13175,"journal":{"name":"Human Genetics","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142568057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}