HGG AdvancesPub Date : 2024-07-18Epub Date: 2024-04-24DOI: 10.1016/j.xhgg.2024.100299
Rachel Y Oh, Ali AlMail, David Cheerie, George Guirguis, Huayun Hou, Kyoko E Yuki, Bushra Haque, Bhooma Thiruvahindrapuram, Christian R Marshall, Roberto Mendoza-Londono, Adam Shlien, Lianna G Kyriakopoulou, Susan Walker, James J Dowling, Michael D Wilson, Gregory Costain
{"title":"A systematic assessment of the impact of rare canonical splice site variants on splicing using functional and in silico methods.","authors":"Rachel Y Oh, Ali AlMail, David Cheerie, George Guirguis, Huayun Hou, Kyoko E Yuki, Bushra Haque, Bhooma Thiruvahindrapuram, Christian R Marshall, Roberto Mendoza-Londono, Adam Shlien, Lianna G Kyriakopoulou, Susan Walker, James J Dowling, Michael D Wilson, Gregory Costain","doi":"10.1016/j.xhgg.2024.100299","DOIUrl":"10.1016/j.xhgg.2024.100299","url":null,"abstract":"<p><p>Canonical splice site variants (CSSVs) are often presumed to cause loss-of-function (LoF) and are assigned very strong evidence of pathogenicity (according to American College of Medical Genetics/Association for Molecular Pathology criterion PVS1). The exact nature and predictability of splicing effects of unselected rare CSSVs in blood-expressed genes are poorly understood. We identified 168 rare CSSVs in blood-expressed genes in 112 individuals using genome sequencing, and studied their impact on splicing using RNA sequencing (RNA-seq). There was no evidence of a frameshift, nor of reduced expression consistent with nonsense-mediated decay, for 25.6% of CSSVs: 17.9% had wildtype splicing only and normal junction depths, 3.6% resulted in cryptic splice site usage and in-frame insertions or deletions, 3.6% resulted in full exon skipping (in frame), and 0.6% resulted in full intron inclusion (in frame). Blind to these RNA-seq data, we attempted to predict the precise impact of CSSVs by applying in silico tools and the ClinGen Sequence Variant Interpretation Working Group 2018 guidelines for applying PVS1 criterion. The predicted impact on splicing using (1) SpliceAI, (2) MaxEntScan, and (3) AutoPVS1, an automatic classification tool for PVS1 interpretation of null variants that utilizes Ensembl Variant Effect Predictor and MaxEntScan, was concordant with RNA-seq analyses for 65%, 63%, and 61% of CSSVs, respectively. In summary, approximately one in four rare CSSVs did not show evidence for LoF based on analysis of RNA-seq data. Predictions from in silico methods were often discordant with findings from RNA-seq. More caution may be warranted in applying PVS1-level evidence to CSSVs in the absence of functional data.</p>","PeriodicalId":34530,"journal":{"name":"HGG Advances","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11144818/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140859278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HGG AdvancesPub Date : 2024-07-18Epub Date: 2024-03-29DOI: 10.1016/j.xhgg.2024.100287
Sadegheh Haghshenas, Hidde J Bout, Josephine M Schijns, Michael A Levy, Jennifer Kerkhof, Pratibha Bhai, Haley McConkey, Zandra A Jenkins, Ella M Williams, Benjamin J Halliday, Sylvia A Huisman, Peter Lauffer, Vivian de Waard, Laura Witteveen, Siddharth Banka, Angela F Brady, Elena Galazzi, Julien van Gils, Anna C E Hurst, Frank J Kaiser, Didier Lacombe, Antonio F Martinez-Monseny, Patricia Fergelot, Fabíola P Monteiro, Ilaria Parenti, Luca Persani, Fernando Santos-Simarro, Brittany N Simpson, Mariëlle Alders, Stephen P Robertson, Bekim Sadikovic, Leonie A Menke
{"title":"Menke-Hennekam syndrome; delineation of domain-specific subtypes with distinct clinical and DNA methylation profiles.","authors":"Sadegheh Haghshenas, Hidde J Bout, Josephine M Schijns, Michael A Levy, Jennifer Kerkhof, Pratibha Bhai, Haley McConkey, Zandra A Jenkins, Ella M Williams, Benjamin J Halliday, Sylvia A Huisman, Peter Lauffer, Vivian de Waard, Laura Witteveen, Siddharth Banka, Angela F Brady, Elena Galazzi, Julien van Gils, Anna C E Hurst, Frank J Kaiser, Didier Lacombe, Antonio F Martinez-Monseny, Patricia Fergelot, Fabíola P Monteiro, Ilaria Parenti, Luca Persani, Fernando Santos-Simarro, Brittany N Simpson, Mariëlle Alders, Stephen P Robertson, Bekim Sadikovic, Leonie A Menke","doi":"10.1016/j.xhgg.2024.100287","DOIUrl":"10.1016/j.xhgg.2024.100287","url":null,"abstract":"<p><p>CREB-binding protein (CBP, encoded by CREBBP) and its paralog E1A-associated protein (p300, encoded by EP300) are involved in histone acetylation and transcriptional regulation. Variants that produce a null allele or disrupt the catalytic domain of either protein cause Rubinstein-Taybi syndrome (RSTS), while pathogenic missense and in-frame indel variants in parts of exons 30 and 31 cause phenotypes recently described as Menke-Hennekam syndrome (MKHK). To distinguish MKHK subtypes and define their characteristics, molecular and extended clinical data on 82 individuals (54 unpublished) with variants affecting CBP (n = 71) or p300 (n = 11) (NP_004371.2 residues 1,705-1,875 and NP_001420.2 residues 1,668-1,833, respectively) were summarized. Additionally, genome-wide DNA methylation profiles were assessed in DNA extracted from whole peripheral blood from 54 individuals. Most variants clustered closely around the zinc-binding residues of two zinc-finger domains (ZZ and TAZ2) and within the first α helix of the fourth intrinsically disordered linker (ID4) of CBP/p300. Domain-specific methylation profiles were discerned for the ZZ domain in CBP/p300 (found in nine out of 10 tested individuals) and TAZ2 domain in CBP (in 14 out of 20), while a domain-specific diagnostic episignature was refined for the ID4 domain in CBP/p300 (in 21 out of 21). Phenotypes including intellectual disability of varying degree and distinct physical features were defined for each of the regions. These findings demonstrate existence of at least three MKHK subtypes, which are domain specific (MKHK-ZZ, MKHK-TAZ2, and MKHK-ID4) rather than gene specific (CREBBP/EP300). DNA methylation episignatures enable stratification of molecular pathophysiologic entities within a gene or across a family of paralogous genes.</p>","PeriodicalId":34530,"journal":{"name":"HGG Advances","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11040166/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140327217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HGG AdvancesPub Date : 2024-07-18Epub Date: 2024-04-26DOI: 10.1016/j.xhgg.2024.100300
Astrid Marchal, Elizabeth T Cirulli, Iva Neveux, Evangelos Bellos, Ryan S Thwaites, Kelly M Schiabor Barrett, Yu Zhang, Ivana Nemes-Bokun, Mariya Kalinova, Andrew Catchpole, Stuart G Tangye, András N Spaan, Justin B Lack, Jade Ghosn, Charles Burdet, Guy Gorochov, Florence Tubach, Pierre Hausfater, Clifton L Dalgard, Shen-Ying Zhang, Qian Zhang, Christopher Chiu, Jacques Fellay, Joseph J Grzymski, Vanessa Sancho-Shimizu, Laurent Abel, Jean-Laurent Casanova, Aurélie Cobat, Alexandre Bolze
{"title":"Lack of association between classical HLA genes and asymptomatic SARS-CoV-2 infection.","authors":"Astrid Marchal, Elizabeth T Cirulli, Iva Neveux, Evangelos Bellos, Ryan S Thwaites, Kelly M Schiabor Barrett, Yu Zhang, Ivana Nemes-Bokun, Mariya Kalinova, Andrew Catchpole, Stuart G Tangye, András N Spaan, Justin B Lack, Jade Ghosn, Charles Burdet, Guy Gorochov, Florence Tubach, Pierre Hausfater, Clifton L Dalgard, Shen-Ying Zhang, Qian Zhang, Christopher Chiu, Jacques Fellay, Joseph J Grzymski, Vanessa Sancho-Shimizu, Laurent Abel, Jean-Laurent Casanova, Aurélie Cobat, Alexandre Bolze","doi":"10.1016/j.xhgg.2024.100300","DOIUrl":"10.1016/j.xhgg.2024.100300","url":null,"abstract":"<p><p>Human genetic studies of critical COVID-19 pneumonia have revealed the essential role of type I interferon-dependent innate immunity to SARS-CoV-2 infection. Conversely, an association between the HLA-B∗15:01 allele and asymptomatic SARS-CoV-2 infection in unvaccinated individuals was recently reported, suggesting a contribution of pre-existing T cell-dependent adaptive immunity. We report a lack of association of classical HLA alleles, including HLA-B∗15:01, with pre-omicron asymptomatic SARS-CoV-2 infection in unvaccinated participants in a prospective population-based study in the United States (191 asymptomatic vs. 945 symptomatic COVID-19 cases). Moreover, we found no such association in the international COVID Human Genetic Effort cohort (206 asymptomatic vs. 574 mild or moderate COVID-19 cases and 1,625 severe or critical COVID-19 cases). Finally, in the Human Challenge Characterisation study, the three HLA-B∗15:01 individuals infected with SARS-CoV-2 developed symptoms. As with other acute primary infections studied, no classical HLA alleles favoring an asymptomatic course of SARS-CoV-2 infection were identified.</p>","PeriodicalId":34530,"journal":{"name":"HGG Advances","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11215417/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140855365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HGG AdvancesPub Date : 2024-07-18Epub Date: 2024-06-19DOI: 10.1016/j.xhgg.2024.100320
Xinan Wang, Kangcheng Hou, Biagio Ricciuti, Joao V Alessi, Xihao Li, Federica Pecci, Rounak Dey, Jia Luo, Mark M Awad, Alexander Gusev, Xihong Lin, Bruce E Johnson, David C Christiani
{"title":"Additional impact of genetic ancestry over race/ethnicity to prevalence of KRAS mutations and allele-specific subtypes in non-small cell lung cancer.","authors":"Xinan Wang, Kangcheng Hou, Biagio Ricciuti, Joao V Alessi, Xihao Li, Federica Pecci, Rounak Dey, Jia Luo, Mark M Awad, Alexander Gusev, Xihong Lin, Bruce E Johnson, David C Christiani","doi":"10.1016/j.xhgg.2024.100320","DOIUrl":"10.1016/j.xhgg.2024.100320","url":null,"abstract":"<p><p>The KRAS mutation is the most common oncogenic driver in patients with non-small cell lung cancer (NSCLC). However, a detailed understanding of how self-reported race and/or ethnicity (SIRE), genetically inferred ancestry (GIA), and their interaction affect KRAS mutation is largely unknown. Here, we investigated the associations between SIRE, quantitative GIA, and KRAS mutation and its allele-specific subtypes in a multi-ethnic cohort of 3,918 patients from the Boston Lung Cancer Survival cohort and the Chinese OrigiMed cohort with an independent validation cohort of 1,450 patients with NSCLC. This comprehensive analysis included detailed covariates such as age at diagnosis, sex, clinical stage, cancer histology, and smoking status. We report that SIRE is significantly associated with KRAS mutations, modified by sex, with SIRE-Asian patients showing lower rates of KRAS mutation, transversion substitution, and the allele-specific subtype KRAS<sup>G12C</sup> compared to SIRE-White patients after adjusting for potential confounders. Moreover, GIA was found to correlate with KRAS mutations, where patients with a higher proportion of European ancestry had an increased risk of KRAS mutations, especially more transition substitutions and KRAS<sup>G12D</sup>. Notably, among SIRE-White patients, an increase in European ancestry was linked to a higher likelihood of KRAS mutations, whereas an increase in admixed American ancestry was associated with a reduced likelihood, suggesting that quantitative GIA offers additional information beyond SIRE. The association of SIRE, GIA, and their interplay with KRAS driver mutations in NSCLC highlights the importance of incorporating both into population-based cancer research, aiming to refine clinical decision-making processes and mitigate health disparities.</p>","PeriodicalId":34530,"journal":{"name":"HGG Advances","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11452329/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141432989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HGG AdvancesPub Date : 2024-07-18Epub Date: 2024-06-24DOI: 10.1016/j.xhgg.2024.100321
Priya N Marathe, Sabrina A Suckiel, Katherine E Bonini, Nicole R Kelly, Laura Scarimbolo, Beverly J Insel, Jacqueline A Odgis, Monisha Sebastin, Michelle A Ramos, Miranda Di Biase, Katie M Gallagher, Kaitlyn Brown, Jessica E Rodriguez, Nicole Yelton, Karla Lopez Aguiñiga, Michelle A Rodriguez, Estefany Maria, Jessenia Lopez, Randi E Zinberg, George A Diaz, John M Greally, Noura S Abul-Husn, Laurie J Bauman, Bruce D Gelb, Melissa P Wasserstein, Eimear E Kenny, Carol R Horowitz
{"title":"Evaluating parental personal utility of pediatric genetic and genomic testing in a diverse, multilingual population.","authors":"Priya N Marathe, Sabrina A Suckiel, Katherine E Bonini, Nicole R Kelly, Laura Scarimbolo, Beverly J Insel, Jacqueline A Odgis, Monisha Sebastin, Michelle A Ramos, Miranda Di Biase, Katie M Gallagher, Kaitlyn Brown, Jessica E Rodriguez, Nicole Yelton, Karla Lopez Aguiñiga, Michelle A Rodriguez, Estefany Maria, Jessenia Lopez, Randi E Zinberg, George A Diaz, John M Greally, Noura S Abul-Husn, Laurie J Bauman, Bruce D Gelb, Melissa P Wasserstein, Eimear E Kenny, Carol R Horowitz","doi":"10.1016/j.xhgg.2024.100321","DOIUrl":"10.1016/j.xhgg.2024.100321","url":null,"abstract":"<p><p>There is increasing evidence of the clinical utility of genetic and genomic testing (GT); however, factors influencing personal utility of GT, especially in diverse, multilingual populations, remain unclear. We explored these factors in a diverse cohort of parents/guardians (participants) whose children received clinical GT through the NYCKidSeq program. A total of 847 participants completed surveys at baseline, post-results disclosure, and 6 months (6m) post-results. The largest population groups were Hispanic/Latino(a) (48%), White/European American (24%), and Black/African American (16%). Personal utility was assessed using the Personal Utility (PrU) scale, adapted for pediatric populations and included on the surveys. Three PrU subscales were identified using factor analysis: practical, educational, and parental psychological utility. Overall personal utility summary score and the three subscales significantly decreased after receiving results and over time. Hispanic/Latino(a) participants identified greater overall personal utility than European American and African American participants at all time points (p < 0.001) as did participants whose children received positive/likely positive results compared with those with negative and uncertain results (post-results: p < 0.001 and p < 0.001; 6m post-results: p = 0.002 and p < 0.001, respectively). Post-results, higher subscale scores were associated with lower education levels (practical, parental psychological: p ≤ 0.02) and higher levels of trust in the healthcare system (practical, parental psychological: p ≤ 0.04). These findings help to understand the perspectives of diverse parents/guardians, which is critical to tailoring pre- and post-test counseling across a variety of populations and clinical settings.</p>","PeriodicalId":34530,"journal":{"name":"HGG Advances","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11284555/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141451796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HGG AdvancesPub Date : 2024-07-18Epub Date: 2024-06-08DOI: 10.1016/j.xhgg.2024.100317
Zhaohui Du, Samuel Lessard, Tejaswi Iyyanki, Michael Chao, Timothy Hammond, Dimitry Ofengeim, Katherine Klinger, Emanuele de Rinaldis, Khader Shameer, Clément Chatelain
{"title":"Genetic analyses of inflammatory polyneuropathy and chronic inflammatory demyelinating polyradiculoneuropathy identified candidate genes.","authors":"Zhaohui Du, Samuel Lessard, Tejaswi Iyyanki, Michael Chao, Timothy Hammond, Dimitry Ofengeim, Katherine Klinger, Emanuele de Rinaldis, Khader Shameer, Clément Chatelain","doi":"10.1016/j.xhgg.2024.100317","DOIUrl":"10.1016/j.xhgg.2024.100317","url":null,"abstract":"<p><p>Chronic inflammatory demyelinating polyneuropathy (CIDP) is a rare, immune-mediated disorder in which an aberrant immune response causes demyelination and axonal damage of the peripheral nerves. Genetic contribution to CIDP is unclear and no genome-wide association study (GWAS) has been reported so far. In this study, we aimed to identify CIDP-related risk loci, genes, and pathways. We first focused on CIDP, and 516 CIDP cases and 403,545 controls were included in the GWAS analysis. We also investigated genetic risk for inflammatory polyneuropathy (IP), in which we performed a GWAS study using FinnGen data and combined the results with GWAS from the UK Biobank using a fixed-effect meta-analysis. A total of 1,261 IP cases and 823,730 controls were included in the analysis. Stratified analyses by gender were performed. Mendelian randomization (MR), colocalization, and transcriptome-wide association study (TWAS) analyses were performed to identify associated genes. Gene-set analyses were conducted to identify associated pathways. We identified one genome-wide significant locus at 20q13.33 for CIDP risk among women, the top variant located at the intron region of gene CDH4. Sex-combined MR, colocalization, and TWAS analyses identified three candidate pathogenic genes for CIDP and five genes for IP. MAGMA gene-set analyses identified a total of 18 pathways related to IP or CIDP. Sex-stratified analyses identified three genes for IP among males and two genes for IP among females. Our study identified suggestive risk genes and pathways for CIDP and IP. Functional analyses should be conducted to further confirm these associations.</p>","PeriodicalId":34530,"journal":{"name":"HGG Advances","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11259940/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141293783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HGG AdvancesPub Date : 2024-07-18Epub Date: 2024-05-27DOI: 10.1016/j.xhgg.2024.100313
Toshiyuki Itai, Fangfang Yan, Andi Liu, Yulin Dai, Chihiro Iwaya, Sarah W Curtis, Elizabeth J Leslie, Lukas M Simon, Peilin Jia, Xiangning Chen, Junichi Iwata, Zhongming Zhao
{"title":"Investigating gene functions and single-cell expression profiles of de novo variants in orofacial clefts.","authors":"Toshiyuki Itai, Fangfang Yan, Andi Liu, Yulin Dai, Chihiro Iwaya, Sarah W Curtis, Elizabeth J Leslie, Lukas M Simon, Peilin Jia, Xiangning Chen, Junichi Iwata, Zhongming Zhao","doi":"10.1016/j.xhgg.2024.100313","DOIUrl":"10.1016/j.xhgg.2024.100313","url":null,"abstract":"<p><p>Orofacial clefts (OFCs) are common congenital birth defects with various etiologies, including genetic variants. Online Mendelian Inheritance in Man (OMIM) annotated several hundred genes involving OFCs. Furthermore, several hundreds of de novo variants (DNVs) have been identified from individuals with OFCs. Some DNVs are related to known OFC genes or pathways, but there are still many DNVs whose relevance to OFC development is unknown. To explore novel gene functions and their cellular expression profiles, we focused on DNVs in genes that were not listed in OMIM. We collected 960 DNVs in 853 genes from published studies and curated these genes, based on the DNVs' deleteriousness, into 230 and 23 genes related to cleft lip with or without cleft palate (CL/P) and cleft palate only (CPO), respectively. For comparison, we curated 178 CL/P and 277 CPO genes from OMIM. In CL/P, the pathways enriched in DNV and OMIM genes were significantly overlapped (p = 0.002). Single-cell RNA sequencing (scRNA-seq) analysis of mouse lip development revealed that both gene sets had abundant expression in the ectoderm (DNV genes: adjusted p = 0.032, OMIM genes: adjusted p < 0.0002), while only DNV genes were enriched in the endothelium (adjusted p = 0.032). Although we did not achieve significant findings using CPO gene sets, which was mainly due to the limited number of DNV genes, scRNA-seq analysis implicated various expression patterns among DNV and OMIM genes. Our results suggest that combinatory pathway and scRNA-seq data analyses are helpful for contextualizing genes in OFC development.</p>","PeriodicalId":34530,"journal":{"name":"HGG Advances","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11318074/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141162523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HGG AdvancesPub Date : 2024-07-18Epub Date: 2024-05-29DOI: 10.1016/j.xhgg.2024.100314
Roberta Zeuli, Marianthi Karali, Suzanne E de Bruijn, Kim Rodenburg, Margherita Scarpato, Dalila Capasso, Galuh D N Astuti, Christian Gilissen, María Rodríguez-Hidalgo, Javier Ruiz-Ederra, Francesco Testa, Francesca Simonelli, Frans P M Cremers, Sandro Banfi, Susanne Roosing
{"title":"Whole genome sequencing identifies elusive variants in genetically unsolved Italian inherited retinal disease patients.","authors":"Roberta Zeuli, Marianthi Karali, Suzanne E de Bruijn, Kim Rodenburg, Margherita Scarpato, Dalila Capasso, Galuh D N Astuti, Christian Gilissen, María Rodríguez-Hidalgo, Javier Ruiz-Ederra, Francesco Testa, Francesca Simonelli, Frans P M Cremers, Sandro Banfi, Susanne Roosing","doi":"10.1016/j.xhgg.2024.100314","DOIUrl":"10.1016/j.xhgg.2024.100314","url":null,"abstract":"<p><p>Inherited retinal diseases (IRDs) are a group of rare monogenic diseases with high genetic heterogeneity (pathogenic variants identified in over 280 causative genes). The genetic diagnostic rate for IRDs is around 60%, mainly thanks to the routine application of next-generation sequencing (NGS) approaches such as extensive gene panels or whole exome analyses. Whole-genome sequencing (WGS) has been reported to improve this diagnostic rate by revealing elusive variants, such as structural variants (SVs) and deep intronic variants (DIVs). We performed WGS on 33 unsolved cases with suspected autosomal recessive IRD, aiming to identify causative genetic variants in non-coding regions or to detect SVs that were unexplored in the initial screening. Most of the selected cases (30 of 33, 90.9%) carried monoallelic pathogenic variants in genes associated with their clinical presentation, hence we first analyzed the non-coding regions of these candidate genes. Whenever additional pathogenic variants were not identified with this approach, we extended the search for SVs and DIVs to all IRD-associated genes. Overall, we identified the missing causative variants in 11 patients (11 of 33, 33.3%). These included three DIVs in ABCA4, CEP290 and RPGRIP1; one non-canonical splice site (NCSS) variant in PROM1 and three SVs (large deletions) in EYS, PCDH15 and USH2A. For the previously unreported DIV in CEP290 and for the NCCS variant in PROM1, we confirmed the effect on splicing by reverse transcription (RT)-PCR on patient-derived RNA. This study demonstrates the power and clinical utility of WGS as an all-in-one test to identify disease-causing variants missed by standard NGS diagnostic methodologies.</p>","PeriodicalId":34530,"journal":{"name":"HGG Advances","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11225895/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141181006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HGG AdvancesPub Date : 2024-07-18Epub Date: 2024-05-21DOI: 10.1016/j.xhgg.2024.100310
Qianqian Liang, Abin Abraham, John A Capra, Dennis Kostka
{"title":"Disease-specific prioritization of non-coding GWAS variants based on chromatin accessibility.","authors":"Qianqian Liang, Abin Abraham, John A Capra, Dennis Kostka","doi":"10.1016/j.xhgg.2024.100310","DOIUrl":"10.1016/j.xhgg.2024.100310","url":null,"abstract":"<p><p>Non-protein-coding genetic variants are a major driver of the genetic risk for human disease; however, identifying which non-coding variants contribute to diseases and their mechanisms remains challenging. In silico variant prioritization methods quantify a variant's severity, but for most methods, the specific phenotype and disease context of the prediction remain poorly defined. For example, many commonly used methods provide a single, organism-wide score for each variant, while other methods summarize a variant's impact in certain tissues and/or cell types. Here, we propose a complementary disease-specific variant prioritization scheme, which is motivated by the observation that variants contributing to disease often operate through specific biological mechanisms. We combine tissue/cell-type-specific variant scores (e.g., GenoSkyline, FitCons2, DNA accessibility) into disease-specific scores with a logistic regression approach and apply it to ∼25,000 non-coding variants spanning 111 diseases. We show that this disease-specific aggregation significantly improves the association of common non-coding genetic variants with disease (average precision: 0.151, baseline = 0.09), compared with organism-wide scores (GenoCanyon, LINSIGHT, GWAVA, Eigen, CADD; average precision: 0.129, baseline = 0.09). Further on, disease similarities based on data-driven aggregation weights highlight meaningful disease groups, and it provides information about tissues and cell types that drive these similarities. We also show that so-learned similarities are complementary to genetic similarities as quantified by genetic correlation. Overall, our approach demonstrates the strengths of disease-specific variant prioritization, leads to improvement in non-coding variant prioritization, and enables interpretable models that link variants to disease via specific tissues and/or cell types.</p>","PeriodicalId":34530,"journal":{"name":"HGG Advances","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11259938/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141076825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HGG AdvancesPub Date : 2024-07-18Epub Date: 2024-05-03DOI: 10.1016/j.xhgg.2024.100303
Marah H Wahbeh, Rachel J Boyd, Christian Yovo, Bailey Rike, Andrew S McCallion, Dimitrios Avramopoulos
{"title":"A functional schizophrenia-associated genetic variant near the TSNARE1 and ADGRB1 genes.","authors":"Marah H Wahbeh, Rachel J Boyd, Christian Yovo, Bailey Rike, Andrew S McCallion, Dimitrios Avramopoulos","doi":"10.1016/j.xhgg.2024.100303","DOIUrl":"10.1016/j.xhgg.2024.100303","url":null,"abstract":"<p><p>Recent collaborative genome-wide association studies (GWAS) have identified >200 independent loci contributing to risk for schizophrenia (SCZ). The genes closest to these loci have diverse functions, supporting the potential involvement of multiple relevant biological processes, yet there is no direct evidence that individual variants are functional or directly linked to specific genes. Nevertheless, overlap with certain epigenetic marks suggest that most GWAS-implicated variants are regulatory. Based on the strength of association with SCZ and the presence of regulatory epigenetic marks, we chose one such variant near TSNARE1 and ADGRB1, rs4129585, to test for functional potential and assay differences that may drive the pathogenicity of the risk allele. We observed that the variant-containing sequence drives reporter expression in relevant neuronal populations in zebrafish. Next, we introduced each allele into human induced pluripotent cells and differentiated four isogenic clones homozygous for the risk allele and five clones homozygous for the non-risk allele into neural progenitor cells. Employing RNA sequencing, we found that the two alleles yield significant transcriptional differences in the expression of 109 genes at a false discovery rate (FDR) of <0.05 and 259 genes at a FDR of <0.1. We demonstrate that these genes are highly interconnected in pathways enriched for synaptic proteins, axon guidance, and regulation of synapse assembly. Exploration of genes near rs4129585 suggests that this variant does not regulate TSNARE1 transcripts, as previously thought, but may regulate the neighboring ADGRB1, a regulator of synaptogenesis. Our results suggest that rs4129585 is a functional common variant that functions in specific pathways likely involved in SCZ risk.</p>","PeriodicalId":34530,"journal":{"name":"HGG Advances","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11130735/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140869396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}