Genome Medicine

Comprehensive pathogen identification and antimicrobial resistance prediction from positive blood cultures using nanopore sequencing technology
Liu PY, Wu HC, Li YL, Cheng HW, Liou CH, Chen FJ and Liao YC
Blood cultures are essential for diagnosing bloodstream infections, but current phenotypic tests for antimicrobial resistance (AMR) provide limited information. Oxford Nanopore Technologies introduces nanopore sequencing with adaptive sampling, capable of real-time host genome depletion, yet its application directly from blood cultures remains unexplored. This study aimed to identify pathogens and predict AMR using nanopore sequencing.
Exploring multi-omics and clinical characteristics linked to accelerated biological aging in Asian women of reproductive age: insights from the S-PRESTO study
Chen L, Tan KM, Xu J, Mishra P, Mir SA, Gong M, Narasimhan K, Ng B, Lai JS, Tint MT, Cai S, Sadananthan SA, Michael N, Yaligar J, Velan SS, Leow MKS, Tan KH, Chan J, Meaney MJ, Chan SY, Chong YS and Eriksson JG
Phenotypic age (PhenoAge), a widely used marker of biological aging, has been shown to be a robust predictor of all-cause mortality and morbidity in different populations. Existing studies on biological aging have primarily focused on individual domains, resulting in a lack of a comprehensive understanding of the multi-systemic dysregulation that occurs in aging.
KleTy: integrated typing scheme for core genome and plasmids reveals repeated emergence of multi-drug resistant epidemic lineages in Klebsiella worldwide
Li H, Liu X, Li S, Rong J, Xie S, Gao Y, Zhong L, Jiang Q, Jiang G, Ren Y, Sun W, Hong Y and Zhou Z
Clinically important lineages in Klebsiella, especially those expressing multi-drug resistance (MDR), pose severe threats to public health worldwide. They arose from the co-evolution of the vertically inherited core genome and horizontal gene transfers by plasmids, which has not been systematically explored.
Integrated analyses of multi-omic data derived from paired primary lung cancer and brain metastasis reveal the metabolic vulnerability as a novel therapeutic target
Duan H, Ren J, Wei S, Yang Z, Li C, Wang Z, Li M, Wei Z, Liu Y, Wang X, Lan H, Zeng Z, Xie M, Xie Y, Wu S, Hu W, Guo C, Zhang X, Liang L, Yu C, Mou Y, Jiang Y, Li H, Sugarman E, Deek RA, Chen Z, Li T, Chen Y, Yao M, Chen L, Liu L, Zhang G and Mou Y
Lung cancer brain metastases (LC-BrMs) are frequently associated with dismal mortality rates in patients with lung cancer; however, standard of care therapies for LC-BrMs are still limited in their efficacy. A deep understanding of molecular mechanisms and tumor microenvironment of LC-BrMs will provide us with new insights into developing novel therapeutics for treating patients with LC-BrMs.
Neoantigen DNA vaccines are safe, feasible, and induce neoantigen-specific immune responses in triple-negative breast cancer patients
Zhang X, Goedegebuure SP, Chen MY, Mishra R, Zhang F, Yu YY, Singhal K, Li L, Gao F, Myers NB, Vickery T, Hundal J, McLellan MD, Sturmoski MA, Kim SW, Chen I, Davidson JT, Sankpal NV, Myles S, Suresh R, Ma CX, Foluso A, Wang-Gillam A, Davies S, Hagemann IS, Mardis ER, Griffith O, Griffith M, Miller CA, Hansen TH, Fleming TP, Schreiber RD and Gillanders WE
Neoantigen vaccines can induce or enhance highly specific antitumor immune responses with minimal risk of autoimmunity. We have developed a neoantigen DNA vaccine platform capable of efficiently presenting both HLA class I and II epitopes and performed a phase 1 clinical trial in triple-negative breast cancer patients with persistent disease on surgical pathology following neoadjuvant chemotherapy, a patient population at high risk of disease recurrence.
pVACview: an interactive visualization tool for efficient neoantigen prioritization and selection
Xia H, Hoang MH, Schmidt E, Kiwala S, McMichael J, Skidmore ZL, Fisk B, Song JJ, Hundal J, Mooney T, Walker JR, Goedegebuure SP, Miller CA, Gillanders WE, Griffith OL and Griffith M
Neoantigen-targeting therapies including personalized vaccines have shown promise in the treatment of cancers, particularly when used in combination with checkpoint blockade therapy. At least 100 clinical trials involving these therapies have been initiated globally. Accurate identification and prioritization of neoantigens is crucial for designing these trials, predicting treatment response, and understanding mechanisms of resistance. With the advent of massively parallel DNA and RNA sequencing technologies, it is now possible to computationally predict neoantigens based on patient-specific variant information. However, numerous factors must be considered when prioritizing neoantigens for use in personalized therapies. Complexities such as alternative transcript annotations, various binding, presentation and immunogenicity prediction algorithms, and variable peptide lengths/registers all potentially impact the neoantigen selection process. There has been a rapid development of computational tools that attempt to account for these complexities. While these tools generate numerous algorithmic predictions for neoantigen characterization, results from these pipelines are difficult to navigate and require extensive knowledge of the underlying tools for accurate interpretation. This often leads to over-simplification of pipeline outputs to make them tractable, for example, limiting prediction to a single RNA isoform or only summarizing the top ranked of many possible peptide candidates. In addition to variant detection, gene expression, and predicted peptide binding affinities, recent studies have also demonstrated the importance of mutation location, allele-specific anchor locations, and variation of T-cell response to long versus short peptides. Due to the intricate nature and number of salient neoantigen features, presenting all relevant information to facilitate candidate selection for downstream applications is a difficult challenge that current tools fail to address.
Efficacy and safety of novel multiple-chain DAP-CAR-T cells targeting mesothelin in ovarian cancer and mesothelioma: a single-arm, open-label and first-in-human study
Xu T, Tian T, Wang C, Chen X, Zuo X, Zhou H, Bai J, Zhao C, Fu S, Sun C, Wang T, Zhu L, Zhang J, Wang E, Sun M and Shu Y
Despite remarkable achievements in applying chimeric antigen receptor (CAR)-T cells to treat hematological malignancies, they remain much less effective against solid tumors, facing several challenges affecting their clinical use. We previously showed that multichain DNAX-activating protein (DAP) CAR structures could enhance the safety and efficacy of CAR-T cells when used against solid tumors. In particular, mesothelin (MSLN)-targeted CAR-T cell therapy has therapeutic potential in MSLN-positive solid tumors, including ovarian cancer and mesothelioma.
Integrated single-cell analysis reveals distinct epigenetic-regulated cancer cell states and a heterogeneity-guided core signature in tamoxifen-resistant breast cancer
Fang K, Ohihoin AG, Liu T, Choppavarapu L, Nosirov B, Wang Q, Yu XZ, Kamaraju S, Leone G and Jin VX
Inter- and intra-tumor heterogeneity is considered a significant factor contributing to the development of endocrine resistance in breast cancer. Recent advances in single-cell RNA sequencing (scRNA-seq) and single-cell ATAC sequencing (scATAC-seq) allow us to explore inter- and intra-tumor heterogeneity at single-cell resolution. However, such integrated single-cell analysis has not yet been demonstrated to characterize the transcriptome and chromatin accessibility in breast cancer endocrine resistance.
Mapping in silico genetic networks of the KMT2D tumour suppressor gene to uncover novel functional associations and cancer cell vulnerabilities
Takemon Y, Pleasance ED, Gagliardi A, Hughes CS, Csizmok V, Wee K, Trinh DL, Huff RD, Mungall AJ, Moore RA, Chuah E, Mungall KL, Lewis E, Nelson J, Lim HJ, Renouf DJ, Jones SJ, Laskin J and Marra MA
Loss-of-function (LOF) alterations in tumour suppressor genes cannot be directly targeted. Approaches characterising gene function and vulnerabilities conferred by such mutations are required.
Epigenetic age and long-term cancer risk following a stroke
Suárez-Pérez A, Macias-Gómez A, Fernández-Pérez I, Vallverdú-Prats M, Cuadrado-Godia E, Giralt-Steinhauer E, Campanale M, Guisado-Alonso D, Rodríguez-Campello A, Jiménez-Balado J, Jiménez-Conde J and Ois A
The association between increased cancer risk following a cerebrovascular event (CVE) has been previously reported. We hypothesize that biological age (B-age) acceleration is involved in this association. Our study aims to examine B-age as a novel contributing factor to cancer development post-CVE.
Genomic surveillance of multidrug-resistant organisms based on long-read sequencing
Landman F, Jamin C, de Haan A, Witteveen S, Bos J, van der Heide HGJ, Schouls LM, Hendrickx APA and
Multidrug-resistant organisms (MDRO) pose a significant threat to public health worldwide. The ability to identify antimicrobial resistance determinants, to assess changes in molecular types, and to detect transmission are essential for surveillance and infection prevention of MDRO. Molecular characterization based on long-read sequencing has emerged as a promising alternative to short-read sequencing. The aim of this study was to characterize MDRO for surveillance and transmission studies based on long-read sequencing only.
Genome-aware annotation of CRISPR guides validates targets in variant cell lines and enhances discovery in screens
Lam S, Thomas JC and Jackson SP
CRISPR-Cas9 technology has revolutionised genetic screens and can inform on gene essentiality and chemo-genetic interactions. It is easily deployed and widely supported with many pooled CRISPR libraries available commercially. However, discrepancies between the reference genomes used in the design of those CRISPR libraries and the cell line under investigation can lead to loss of signal or introduction of bias. The problem is particularly acute when dealing with variant cell lines such as cancer cell lines.
Curating genomic disease-gene relationships with Gene2Phenotype (G2P)
Yates TM, Ansari M, Thompson L, Hunt SE, Uhalte EC, Hobson RJ, Marsh JA, Wright CF and Firth HV
Genetically determined disorders are highly heterogenous in clinical presentation and underlying molecular mechanism. The evidence underpinning these conditions in the peer-reviewed literature requires robust critical evaluation for diagnostic use. Here, we present a structured curation process for Gene2Phenotype (G2P). This draws on multiple lines of clinical, bioinformatic and functional evidence. The process utilises and extends existing terminologies, allows for precise definition of the molecular basis of disease, and confidence levels to be attributed to a given gene-disease assertion. In-depth disease curation using this process will prove useful in applications including in diagnostics, research and development of targeted therapeutics. G2P: www.ebi.ac.uk/gene2phenotype .
Identification of pathological pathways centered on circRNA dysregulation in association with irreversible progression of Alzheimer's disease
Wang F, Li Y, Shen H, Martinez-Feduchi P, Ji X, Teng P, Krishnakumar S, Hu J, Chen L, Feng Y and Yao B
Circular RNAs (circRNAs) are highly stable regulators, often accumulated in mammalian brains and thought to serve as "memory molecules" that govern the long process of aging. Mounting evidence demonstrated circRNA dysregulation in the brains of Alzheimer's disease (AD) patients. However, whether and how circRNA dysregulation underlies AD progression remains unexplored.
Integrating metabolomics and proteomics to identify novel drug targets for heart failure and atrial fibrillation
van Vugt M, Finan C, Chopade S, Providencia R, Bezzina CR, Asselbergs FW, van Setten J and Schmidt AF
Altered metabolism plays a role in the pathophysiology of cardiac diseases, such as atrial fibrillation (AF) and heart failure (HF). We aimed to identify novel plasma metabolites and proteins associating with cardiac disease.
Pathological mechanisms and candidate therapeutic approaches in the hearing loss of mice carrying human MIR96 mutations
Lewis MA, Lachgar-Ruiz M, Di Domenico F, Duddy G, Chen J, Fernandez S, Morin M, Williams G, Moreno Pelayo MA and Steel KP
Progressive hearing loss is a common problem in the human population with no effective therapeutics currently available. However, it has a strong genetic contribution, and investigating the genes and regulatory interactions underlying hearing loss offers the possibility of identifying therapeutic candidates. Mutations in regulatory genes are particularly useful for this, and an example is the microRNA miR-96, a post-transcriptional regulator which controls hair cell maturation. Mice and humans carrying mutations in miR-96 all exhibit hearing impairment, in homozygosis if not in heterozygosis, but different mutations result in different physiological, structural and transcriptional phenotypes.
Multiomic integration analysis identifies atherogenic metabolites mediating between novel immune genes and cardiovascular risk
Carreras-Torres R, Galván-Femenía I, Farré X, Cortés B, Díez-Obrero V, Carreras A, Moratalla-Navarro F, Iraola-Guzmán S, Blay N, Obón-Santacana M, Moreno V and de Cid R
Understanding genetic-metabolite associations has translational implications for informing cardiovascular risk assessment. Interrogating functional genetic variants enhances our understanding of disease pathogenesis and the development and optimization of targeted interventions.
A genome-based survey of invasive pneumococci in Norway over four decades reveals lineage-specific responses to vaccination
Eldholm V, Osnes MN, Bjørnstad ML, Straume D and Gladstone RA
Streptococcus pneumoniae is a major cause of mortality globally. The introduction of pneumococcal conjugate vaccines (PCVs) has reduced the incidence of the targeted serotypes significantly, but expansion of non-targeted serotypes, serotype replacement, and incomplete vaccine-targeting contribute to pneumococcal disease in the vaccine era. Here, we characterize the changing population genetic landscape of S. pneumoniae in Norway over a 41-year period (1982-2022).
Developmental-status-aware transcriptional decomposition establishes a cell state panorama of human cancers
Luo Y and Liang H
Cancer cells evolve under unique functional adaptations that unlock transcriptional programs embedded in adult stem and progenitor-like cells for progression, metastasis, and therapeutic resistance. However, it remains challenging to quantify the stemness-aware cell state of a tumor based on its gene expression profile.
Cardiomyopathies in 100,000 genomes project: interval evaluation improves diagnostic yield and informs strategies for ongoing gene discovery
Josephs KS, Seaby EG, May P, Theotokis P, Yu J, Andreou A, Sinclair H, Morris-Rosendahl D, Thomas ERA, Ennis S, Roberts AM and Ware JS
Cardiomyopathies are clinically important conditions, with a strong genetic component. National genomic initiatives such as 100,000 Genome Project (100KGP) provide opportunity to study these rare conditions at scale beyond conventional research studies.
Circular RNA landscape in extracellular vesicles from human biofluids
Zhao J, Li Q, Hu J, Yu H, Shen Y, Lai H, Li Q, Zhang H, Li Y, Fang Z and Huang S
Circular RNAs (circRNAs) have emerged as a prominent class of covalently closed single-stranded RNA molecules that exhibit tissue-specific expression and potential as biomarkers in extracellular vesicles (EVs) derived from liquid biopsies. Still, their characteristics and applications in EVs remain to be unveiled.