Blina_Tumour_project
The aim of this study is to reconstruct the embryology of childhood tumours.
Study
EGAS00001006486
Comprehensive characterization of pre- and post-treatment samples of breast cancer reveal potential mechanisms of chemotherapy resistance
When locally advanced breast cancer is treated with neoadjuvant chemotherapy, the recurrence risk is significantly higher if no complete pathologic response is achieved. Identification of the underlying resistance mechanisms is essential to select treatments with maximal efficacy and minimal toxicity. Here we employed gene expression profiles derived from 317 HER2-negative treatment-naïve breast cancer biopsies of patients who underwent neoadjuvant chemotherapy, deep whole exome and RNA-sequencing profiles of 22 matched pre- and post-treatment tumors, and treatment outcome data to identify biomarkers of response and resistance mechanisms. Molecular profiling of treatment-naïve breast cancer samples revealed that expression levels of proliferation, immune response and extracellular matrix (ECM) organization combined predict response to chemotherapy. Triple negative patients with high proliferation, high immune response and low ECM expression had a significantly better treatment response and survival benefit (HR 0.29, 95% CI 0.10-0.85; p=0.02), while in ER+ patients the opposite was seen (HR 4.73, 95% CI 1.51-14.8; 0=0.008). The characterization of paired pre-and post-treatment samples revealed that aberrations of known cancer genes were either only present in the pre-treatment sample (CDKN1B) or in the post-treatment sample(TP53, APC, CTNNB1). Proliferation-associated genes were frequently down-regulated in post-treatment ER+ tumors, but not in triple negative tumors. Genes involved in ECM were upregulated in the majority of post-chemotherapy samples. Genomic and transcriptomic differences between pre- and post-chemotherapy samples are common and may reveal potential mechanisms of therapy resistance. Our results show a wide range of distinct, but related mechanisms, with a prominent role for proliferation- and ECM-related genes.
Study
EGAS00001005876
Decoding Human Endogenous Retrovirus Expression in Liver Metastatic Colorectal Cancers: Implications for Diagnosis and Prognosis
The association between Human Endogenous RetroVirus (HERV) expression and cancer can be considered to both reflect the epigenetic deregulation of cancer and facilitate oncogenesis through its promoter/enhancer action on genes. More than 50% of colorectal cancers develop liver metastases and HERV has never been studied in this setting.
We collected 400 RNAseq samples from more than 200 patients with primary and liver metastases from published and unpublished databases. We corroborated our findings with tandem mass spectrometry from primary colorectal cancer and single-cell RNAseq from liver metastatic colorectal cancer (lmCRC).
We identified global stability in HERV expression between liver metastases and primary colorectal cancers, suggesting an early oncogenic footprint. Therefore, we proposed a list of seventeen HERV loci for lmCRC characterization with ERV-derived peptides but no expression in normal tissues. Among them, we discovered six prognostic markers after surgical resection of lmCRC. Four of them, HERVH_Xp22.32a, HERVH_20p11.23b, HERVH_13q33.3, HERVH_13q31.3, showed poor prognostic value when expressed (log-rank p-value 0.028, 0.0083, 9e-4, 0.05, respectively). HERVH_Xp22.2c (log-rank p-value 0.032) and HERVH_8q21.3b (only in multivariate models) were associated with better prognosis when expressed. These markers showed a cumulative effect on survival when expressed. Some HERVs were associated with decreased cytotoxic immune cells and most of them correlated with cell cycle pathways.
Our findings provide new insights into lmCRC classification and suggest novel prognostic biomarkers and potential therapeutic targets.
Study
EGAS50000000307
Osteosarcoma_Sequencing
Genomic libraries (500 bps) will be generated from total genomic DNA derived from 25 osetocarcinoma samples and subjected to total of three lanes of 37 bp paired end sequencing on the llumina GA per sample. Paired reads will be mapped to build 37 of the human reference genome to facilitate the generation of genome wide copy number information, and the identification of novel rearranged cancer genes and gene fusions.
Study
EGAS00001000013
FOCUS Trial
We studied patients with advanced colorectal cancer, starting treatment with non-curative intent. 2135 unpretreated patients were randomly assigned to three treatment strategies in the ratio 1:1:1. Strategy A (control group) was single-agent fl uorouracil (given with levofolinate over 48 h every 2 weeks) until failure, then single-agent irinotecan. Strategy B was fl uorouracil until failure, then combination chemotherapy. Strategy C was combination chemotherapy from the outset.
Study
EGAS50000000725
RNAseq_of_ribosomal_footprints
Cancer genes can affect ribosomal RNA processing and this can underlie their essentiality to cells, making them cell-essential in the same way as ribosomal genes themselves. We want to confirm this, in order to understand the results of our CRISPR drop-out screens.NOTE FROM BESPOKE TEAM: Run a single read 1 (forward read) of 30 bases, then an index 1 read as normal. This would fit a 50cycle kit
Study
EGAS00001001591
MDSMPN_Rearrangement_Screen
Genomic libraries (500 bps) will be generated from total genomic DNA derived from 11 Myelodysplastic Myeloproliferative neoplasms (MDSMPN) and subjected to total of two lanes of 50 bp, paired end sequencing on the llumina HiSeq. Paired reads will be mapped to build 37 of the human reference genome to facilitate the generation of genome wide copy number information, and the identification of novel rearranged cancer genes and gene fusions.
Study
EGAS00001000034
Gastric_and_Esophageal_tumour_rearrangement_screen
Genomic libraries (500 bps) will be generated from total genomic DNA derived from gastric and esophageal tumours and subjected to total of two lanes of 50 bp, paired end sequencing on the llumina HiSeq. Paired reads will be mapped to build 37 of the human reference genome to facilitate the generation of genome wide copy number information, and the identification of novel rearranged cancer genes and gene fusions.
Study
EGAS00001000037
Longitudinal therapy monitoring of ALK-positive non-small cell lung cancer (copy number, cell-free DNA)
Clinical courses of non-small cell lung cancer patients with ALK rearrangements (ALK+ NSCLC) vary widely. We analyzed 271 longitudinal plasma samples from 73 patients with advanced ALK+ NSCLC treated with ALK tyrosine kinase inhibitors by combined hybrid-capture-based targeted sequencing (average 4,100x coverage) for mutation analysis and shallow whole genome sequencing (0.5x coverage) for global copy number profiling from cfDNA.
Study
EGAS00001004276
Comprehensive investigation of genome architecture of papillary thyroid cancer with whole-exon sequencing in the Chinese population.
In this study, we performed whole-exon sequencing (WES) of 50 paired PTC tumors and adjacent normal tissues to identify novel potential biomarkers. We extracted mutational signatures which induce somatic mutations. Moreover, we observed copy number changes frequently occurring in some cancer related genes. Our study covers a comprehensive genetic framework that can be used in clinical trials and treatment modalities in PTC.
Study
EGAS00001002402
Targeted sequencing DDR genes in cancer stem cells
Colorectal cancer stem cells (CSCs) show heterogeneous levels of constitutive replication stress leading distinct dependence on the replication stress response. The aim of the projects was to find genetic, epigenetic, phenotypic factors associated with the resistance of colorectal CSCs to inhibitors of the ATR/CHK1 pathway, which regulates of the replication stress response. Different pairs of colorectal CSCs sensitive and resistant to ATR or CHK1 inhibitors were analyzed
Study
EGAS00001004892
Berlin Neuroblastoma Dataset
Study
EGAS00001004022
Genetic alterations in metastatic uveal melanoma
Study
EGAS00001003303
OSCC WES + WGS Boot et al. 2020
Study
EGAS00001004376
Leeds_Melanoma_Cohort
Leeds Melanoma Cohort
Study
EGAS00001001158
A system-wide approach to monitor responses to synergistic BRAF and EGFR inhibition in colorectal cancer cells
Molecular heterogeneity of tumors, epigenetic changes and a diverse range of molecular mechanisms are main contributors to drug resistance, which represents one of the great challenges in cancer treatment. A deeper understanding of the molecular biology of cancer has resulted in better targeted therapies, where one or multiple drugs are adopted in novel therapies to tackle resistance. This beneficial effect of using combination treatments has to some extent also been observed in colorectal cancer (CRC) patients harboring the BRAF(V600E) mutation, whereby dual inhibition of BRAF(V600E) and EGFR increases antitumor activity. Notwithstanding this success, it is not clear whether this combination treatment is the only or most effective treatment to block resistance. Here, we investigate molecular responses upon single and multi-target treatments, over time, using BRAF(V600E) mutant CRC cells as a well-define model system. Through integration of transcriptomic, proteomic and phosphoproteomics data we obtain a comprehensive overview, revealing both well-known and novel responses. We primarily observe widespread upregulation of tyrosine kinases (RTKs) and and metabolic pathways. This points to by which the treated cells switch energy sources as a defensive response entering a quiescent like state, while activating signalling to re-activate the MAPK pathway.
Study
EGAS00001002654
Long-read sequencing of diagnosis and post-therapy medulloblastoma reveals complex rearrangement patterns and epigenetic signatures
Cancer genomes harbor a broad spectrum of structural variants (SV) driving tumorigenesis, a relevant subset of which are likely to escape discovery in short reads. We employed Oxford Nanopore Technologies (ONT) sequencing in a paired diagnostic and post-therapy medulloblastoma to unravel the haplotype-resolved somatic genetic and epigenetic landscape. We assemble complex rearrangements and such associated with telomeric sequences, including a 1.55 Megabasepair chromothripsis event. We uncover a complex SV pattern termed "templated insertion thread", characterized by short (mostly less than 1kb) insertions showing prevalent self-concatenation into highly amplified structures of up to 50kbp in size. Templated insertion threads occur in 3% of cancers, with a prevalence ranging to 74% in liposarcoma, and frequent colocalization with chromothripsis. We also perform long-read based methylome profiling and discover allele-specific methylation (ASM) effects, complex rearrangements exhibiting differential methylation, and differential promoter methylation in seven cancer-driver genes. Our study shows the potential of long-read sequencing in cancer.
Study
EGAS00001006576
RNA Sequencing of Colorectal Liver Metastases
A subset of patients with metastatic colorectal cancer achieves prolonged survival after hepatic resection of limited liver metastases. Here, we examined the molecular features of colorectal liver metastases as they relate to clinical outcomes.
Study
EGAS00001002945
Genomic and Transcriptomic Profile of Paired Primary-Metastasis Colorectal Tumors
The goal of this study is to identify mechanisms of metastization in a portuguese cohort of colorectal cancer. Namely, we want to identify patterns of genomic and transcriptomic diversification associated with metastasis.
Study
EGAS00001005276
Integrative genomic analyses reveal androgen-driven somatic alteration landscape in early-onset prostate cancer
Early-onset prostate cancer (EO-PCA) represents the earliest clinical manifestation of prostate cancer. To compare the genomic alteration landscapes of EO-PCA with "classical" (elderly-onset) PCA, we performed deep sequencing-based genomics analyses in eleven tumors diagnosed at young age, and pursued comparative assessments with seven elderly-onset PCA genomes. Remarkable age-related differences in structural rearrangement (SR) formation became evident, suggesting distinct disease pathomechanisms. Whereas EO-PCAs harbored a prevalence of balanced SRs, with a specific abundance of androgen-regulated ETS gene fusions including TMPRSS2:ERG, elderly-onset PCAs displayed primarily non-androgen-associated SRs. Data from a validation cohort of >10,000 patients showed age-dependent androgen receptor levels and a prevalence of SRs affecting androgen-regulated genes, further substantiating the activity of a characteristic "androgen-type" pathomechanism in EO-PCA.
Study
EGAS00001000400
Single-cell analysis reveals fibroblast clusters linked to immunotherapy resistance in cancer
A subset of Cancer-Associated Fibroblasts (CAF-S1) mediates immunosuppression in breast cancers (BC), but its heterogeneity and its impact on immunotherapy response remain unknown. Here, we identify 8 CAF-S1 clusters by analyzing more than 18000 single CAF-S1 fibroblasts from BC. We validate the 5 most abundant clusters by flow cytometry and in silico analyses in other cancer types, highlighting their relevance. Myofibroblasts from clusters 0 and 3, characterized by extra-cellular matrix proteins and TGF signaling respectively, are indicative of primary resistance to immunotherapies. Cluster 0 up-regulates PD-1 and CTLA-4 protein levels in regulatory T lymphocytes (Tregs), which in turn increases CAF-S1 cluster 3 cellular content. Thus, our study highlights a positive feedback loop between specific CAF-S1 clusters and Tregs and uncovers their role in immunotherapy resistance.
Study
EGAS00001004030
Hereditary Cancer Diagnostics with I2HCP gene panel
This dataset contains targetted DNA sequencing data generated in the context of genetic diagnostics of hereditary cancer. Target enrichment was performed with the I2HCP, a custom hereditary cancer gene panel based in Agilent SureSelect and developed by the Germans Trias i Pujol Research Institute (IGTP, Badalona, Catalonia, Spain) and the Catalan Institute of Oncology (ICO, L'Hospitalet de Llobregat, Catalonia, Spain). After the enrichment, 108 samples were sequenced in Illumina HiSeq machines and 130 in MiSeq machines. Some of the samples were sequenced on both platforms. The dataset also includes MLPA validation data for all identified copy-number alterations, annotated with exon resolution and information about negative MLPA results.
All this data was generated in the context of routine diagnostics and compiled together with MPLA validation data for a genetic diagnostics oriented benchmark of germline CNV calling tools.
Study
EGAS00001004316
Chromothripsis followed by circular recombination drives oncogene amplification in human cancer
The mechanisms behind the evolution of complex genomic amplifications in cancer have remained largely unclear. We here identified a type of amplification, termed as “seismic amplification”, that is characterized by multiple rearrangements and discontinuous copy number levels. Seismic amplifications occurred in 9.9% (274/2,756) of cases across 38 cancer types and were associated with massively increased copy numbers and elevated oncogene expression. Reconstruction of the development of seismic amplification revealed a stepwise evolution, starting with a chromothripsis event, followed by formation of circular extrachromosomal DNA that subsequently underwent repetitive rounds of circular recombination. The resulting amplicons persisted as extrachromosomal DNA circles or had reintegrated into the genome in overt tumors. Together, our data indicate that the sequential occurrence of chromothripsis and circular recombination drives oncogene amplification and over-expression in a substantial fraction of human malignancies.
Study
EGAS00001005424
Targeted sequence of MDS cases treated with azacitidine
Study
EGAS00001007030
BRCA-deficiency/HRD in individuals with HBOC
Study
EGAS00001007258
Genomic and transcriptome analysis for intrahepatic cholangiocarcinoma
Study
EGAS00001006007
Gene expression profiling in pregnancy-associated breast cancer
Study
EGAS00001008013
Enhanced detection of MRD with cfDNA Fragmentomics.
Study
EGAS00001007192
JAK and STAT alterations in CD30 positive LPD
Study
EGAS00001004181
Berlin Neuroblastoma Dataset Update 2021
Study
EGAS00001005604
bulk RNA-Seq of colorectal cancer patient samples
Study
EGAS00001006666
Human primary and metastatic colorectal cancer (CRC) samples
Study
EGAS00001006746
Molecular profiling of longitudinally observed small colorectal polyps: a cohort study
Knowledge of the natural history of colorectal adenomas is limited because these lesions are removed upon detection. The few studies in which small adenomas have been left in situ for a limited period of time have shown that most lesions remain stable or even completely vanish. Lesions that have grown in size more often turn out to be advanced adenomas when resected. Specific DNA copy number changes (cancer associated events or CAEs) are associated with progression of adenomas to cancer. The aim of the study was to evaluate whether growth of small colorectal polyps left in situ is associated with specific molecular features.
Study
EGAS00001003284
Combination Therapies for Personalised Cancer Medicine in drug resistant EGFR mutant lung cancer
This study involves mutagenizing a range of different cell lines with ENU to identify those mutations which engender resistance to targeted treatment.
In the last decade we have begun to move towards the use of targeted therapeutics in the clinic, often resulting in dramatic response rates in cancer patients. However, clinical experience has demonstrated time and time again that such responses are invariably followed by the development of drug resistance. Identification of the underlying mechanisms may enable us to reverse such resistance. Traditional methods of modelling this resistance in vitro can lead to a plethora of potential resistance mechanisms that can be difficult to decipher.
Study
EGAS00001002509
Mechanisms of duodenal adenoma development in familial polyposis syndromes
Study
EGAS00001006561
Resident memory CD8 T cell in human lung cancer
Study
EGAS00001004707
Single cell RNAseq of PBMC from bladder cancer patients
Study
EGAS00001004458
Genomic Analysis of a Metastatic Fusion-negative Embryonal Rhabdomyosarcoma
Study
EGAS00001006946
A Single-cell Atlas of Progressive TKI Resistance in Chronic Myeloid Leukemia
High-dimensional scRNA seq and CyTOF were used to identify features predictive of treatment outcome at diagnosis. An optimal TKI response was characterised by erythroid lineage skewing of the CD34+ HSPC compartment. While TKI-resistant CP was reminiscent of a BC-like state, where HSPCs were enriched for inflammation, stemness and quiescence. We designed a machine-learning approach which assessed the prognostic potential of all 32 sub-populations of our scRNA seq dataset. LSCs and NK populations harboured the highest prognostic power at diagnosis. Within the LSCs, erythroid lineage priming and MYC activation were features of an optimal and poor TKI responses, respectively. With the NK cell compartment, apart from a higher abundance of NK cells in TKI optimal responders, a memory-like HLA-DR+ adaptive NK and KLRC1+ NK populations were hallmarks of an optimal and poor TKI responses, respectively. Mechanistically, both cell intrinsic and extrinsic mechanisms contributed towards the higher sensitivity of EPs to TKI therapy. In summary, our high-dimensional single-cell atlas of TKI resistance highlights pivotal transcriptional features associated with TKI-resistance disease, some of which have the potential to be exploited as biomarkers.
Study
EGAS00001005509
Case Report: Rare IKZF1 gene fusions identified in neonate with congenital KMT2A-rearranged Acute Lymphoblastic Leukemia
Here we describe a rare case of congenital KMT2Ar ALL presenting with co-occurring IKZF1 gene fusions and a predictably aggressive disease trajectory. We report for the first time, the novel IKZF1::TUT1 and KDM2A::IKZF1 gene fusions. Rearrangements in-volving KMT2A are commonly retained in relapsed infant ALL, however, in this case the KMT2A::AFF1 gene fusion did not appear to be the lesion driving leukemic relapse. Instead, our data suggest that relapse was driven by IKZF1::TUT1. This gene fusion remained in all samples investigated, including the on-blinatumomab therapy sample taken immediately prior to relapse. Conversely, the KMT2A::AFF1 gene fusion was only detected in the diagnosis and refractory post-induction samples highlighting a key role for IKZF1::TUT1 in disease pathogenesis. Intriguingly, both IKZF1 gene fusions are predicted to be out-of-frame, however, our data demonstrate the IKZF1 gene is still expressed. This is not unprecedented and it has previously been observed that out-of-frame fusions can cause transcriptional activation/repression of genes involved in the fusions leading to increases or decreases of their expression and the as-sociated functional outcomes.
Study
EGAS00001006947
Efficacy of dual KRAS G12D–EGFR blockade versus triple combinations in patient-derived models of KRAS G12D-mutant colorectal cancer
RNA sequencing was performed on patient-derived xenograft (PDX)-derived organoid models of metastatic colorectal cancer (mCRC). The aim of this study was to characterize the transcriptional landscape of KRAS-mutant mCRC cells in response to therapeutic strategies targeting the EGFR and KRAS signaling pathways. Transcriptomic profiling was conducted following drug treatments to investigate molecular changes associated with single and combination therapies. A total of 24 samples were analyzed.
Study
EGAS50000001700
Cell-free DNA methylome and fragmentome analysis for disease relapse monitoring in patients with Ewing Sarcoma
We conducted whole-genome and methylome sequencing of cfDNA from 87 serial samples of 23 patients with EwS and 3 patients with CIC-rearranged sarcoma (CIC). With EwingSign, a new machine learning model, we identified EwS or CIC in a test set for 11 out of 16 patients at diagnosis and 15 out of 18 clinically confirmed relapse events. 0 out of 24 non-cancer controls were detected positive with EwingSign.
Study
EGAS50000001415
Single-cell transcriptomic analyses of peripheral blood mononuclear cells, peritoneal fluid, and peritoneal metastases from patients with colorectal cancer
The data published here contains single-cell RNA- sequencing (scRNAseq) on peripheral blood mononuclear cells (PBMC), peritoneal fluid (PF), and peritoneal metastases (PM). PBMC, PF and, where possible, PM was acquired from patients with colorectal cancer (CRC) and subjected to 3' scRNAseq using the 10X Genomics (Chromium Single Cell 3’ Reagent). Sequencing was performed in a paired-ended fashion on either the HiSeq4000 or the NovaSeq6000.
Study
EGAS50000000173
WGS and WES of 78 pairs Chinese gastric cancer
Gastric Cancer (GC) is a highly heterogeneous disease. To identify potential clinically actionable therapeutic targets that may inform individualized treatment strategies, we performed whole-exome sequencing on 78 GCs of differing histologies and anatomic locations, as well as whole-genome sequencing on two GC cases, each with 3 primary tumours and 2 matching lymph node metastases. The data showed two distinct GC subtypes with either high-clonality (HiC) or low-clonality (LoC).
Study
EGAS00001001056
MutWP5__CRUK_Mutographs_of_Cancer__Breast__BRCA_Carriers__Exome_
Sequencing of LCM-derived microbiopsies from 20 women who underwent risk-reducing reduction mastectomies due to germline BRCA1/2. Goal to assess the mutational burden, spectrum, and clonal dynamics within the tissue. Exome data will be used as a driver and clonality screen, highly clonal or driver-containing samples will subsequently be sent for whole-genome sequencing. Results from this portion of the study will be compared to women who had cosmetic breast reduction surgeries and those with cancer.
Study
EGAS00001003316
Myelodysplastic_Syndrome_Follow_Up_Series
Agilent whole exome hybridisation capture was performed on genomic DNA derived from MDS and matched normal DNA from the same patients. Next Generation sequencing performed on the resulting exome libraries and mapped to build 37 of the human reference genome to facilitate the identification of novel cancer genes. Now we aim to discover the prevalence of our findings using bespoke pulldown methods and sequencing the products from a larger set of patient DNA.
Study
EGAS00001000224
MutWP5__CRUK_Mutographs_of_Cancer__Breast__BRCA_Carriers__Targeted_
Sequencing of LCM-derived microbiopsies from 20 women who underwent risk-reducing reduction mastectomies due to germline BRCA1/2. Goal to assess the mutational burden, spectrum, and clonal dynamics within the tissue. Targeted data will be used as a driver and clonality screen, highly clonal or driver-containing samples will subsequently be sent for whole-genome sequencing. Results from this portion of the study will be compared to women who had cosmetic breast reduction surgeries and those with cancer.
Study
EGAS00001003315
MutWP5__CRUK_Mutographs_of_Cancer__Breast__Cancer_Mastectomy__Targeted_
Sequencing of LCM-derived microbiopsies from 30 women who mastectomies due to Breast Cancer. Goal to assess the mutational burden, spectrum, and clonal dynamics within the tissue. Targeted data will be used as a driver and clonality screen, highly clonal or driver-containing samples will subsequently be sent for whole-genome sequencing. Results from this portion of the study will be compared to women who had cosmetic breast reduction surgeries and those with germline BRCA 1/2 mutations.
Study
EGAS00001003318
To_profile_the_landscape_of_sebaceous_tumours_WES
Sebaceous tumours are a rare cutaneous cancer with potential for aggressive behaviour. However, limited information is available on these cancers with few published cases. Here we wish to exome sequence these cancers to define the first genomic landscape for this malignancy. We will extract DNA from formalin-fixed, paraffin-embedded (FFPE) cores. Cores may be obtained from lesional and non-lesional tissues of primaries as well as matching metastases. The extracted DNA will be used for exome sequencing.
Study
EGAS00001003553
Shot-gun stool metagenomics and colorectal cancer risk.
This study aims to identify metagenomics biomarkers in colorectal cancer (CRC). The study includes 156 samples of shot-gun stool metagenomics, corresponding to 51 patients with CRC, 54 patients with high-risk adenoma, and 51 healthy controls. The sequencing libraries were prepared with 2 µg of total DNA using the Nextera XT DN Sample Prep Kit (Illumina, San Diego, CA, USA). Sequencing was performed at 150 nucleotides, paired-end, using an Illumina HiSeq 4000 platform.
Study
EGAS00001007025
Elucidating the molecular landscape of KRAS/BRAF mutant colorectal cancers
Study
EGAS00001007459
Whole exome sequencing from small cell lung cancer patients
Study
EGAS00001005087
Fasting-mimicking diet reshapes antitumor immunity in cancer patients
Study
EGAS00001004944
Validation of a targeted sequencing panel for multiple myeloma
Study
EGAS00001006164
Longitudinal single-cell RNA-seq data of metastatic ovarian cancer
Study
EGAS00001005006
Aberrant EZHIP Expression Drives Tumorigenesis in Osteosarcoma
Study
EGAS00001007531
single-cell RNA-Seq of colorectal cancer patient samples
Study
EGAS00001006665
GBM stem cell lines and PRMT5 inhibitor
Study
EGAS00001004397
Accelerated single cell seeding in relapsed multiple myeloma
Study
EGAS00001004404
Characterization of alternative promoter usage in advanced prostate cancer
Study
EGAS00001006275
RNAseq analysis on primary sites Colorectal Cancer xenografts (PRX) samples
Study
EGAS00001007051
Phylogenetic analysis of treatment-naive metastases using whole exome and genome sequencing data
Metastases are responsible for the majority of cancer related deaths and are often difficult to treat successfully. Even for metastases that occur subsequent to treatment, we do not know whether such relapsing metastases were originally heterogeneous or if the observed heterogeneity is a consequence of therapy. Given that treatment can influence evolutionary dynamics by selecting resistant clones, imposing bottlenecks on cancer cell populations, and even inducing novel somatic mutations, characterizing the prior standing variation among metastases remains an important goal to predict initial therapeutic response. To quantify the heterogeneity at clinical presentation of advanced disease, we surveyed the literature for patients in which at least two treatment-naïve metastases underwent genome/exome-wide sequencing. Across all cancer types surveyed, only 18 subjects were found to fulfill this requirement. Including previously unpublished data from two subjects, we analyzed data of 74 untreated metastases and inferred cancer phylogenies. Putative driver gene mutations were acquired at a 2-fold higher rate on the trunk of all metastases than on branches. Mutations in driver genes along the trunk were strongly enriched for predicted functional consequences. Using a stochastic mathematical model, we find that driver gene heterogeneity among metastases mostly occurs in slowly growing cancers for highly advantageous driver gene mutations. Seeding efficiency only weakly affects the heterogeneity among metastases. These results explain why functional driver gene heterogeneity is uncommon in advanced disease prior to treatment, thus providing optimism for future therapies that depend on mutations across metastases.
Study
EGAS00001002777
The University of Hong Kong Intestinal Metaplasia Organoids Study
Background: Gastric intestinal metaplasia (IM) is a pre-cancerous stage spanning a morphological spectrum that is poorly represented by human cell line models.
Objective: We aim to establish and characterize human IM cell models to better understand IM progression along the cancer spectrum.
Design: A large human gastric IM organoid (IMO) cohort (n=28), their clonal derivatives and normal gastric organoids (n=42) for comparison were established. Comprehensive multi-omics profiling and functional characterization were performed.
Results: Single-cell transcriptomes revealed IMO cells spanning a spectrum from hybrid gastric/intestinal to advanced intestinal differentiation. Their lineage trajectories connected different cycling and quiescent stem and progenitors, highlighting differences in gastric to IM transition and the potential origin of IM from STMN1 cycling isthmus stem cells. Hybrid IMOs showed impaired differentiation potential, high lineage plasticity beyond gastric or intestinal fates, and reactivation of a fetal gene program.
Cell populations in gastric IM and cancer tissues were highly similar to those derived from IMOs and exhibited a fetal signature. Genomically, IMOs showed elevated mutation burden, frequent chromosome 20 gain, and epigenetic de-regulation of many intestinal and gastric genes. Functionally, IMOs were FGF10 independent and showed downregulated FGFR2. Several IMOs exhibited a cell-matrix adhesion independent (CMi) subpopulation that displayed chromosome 20 gain but lacked key cancer driver mutations, potentially representing the earliest neoplastic precursor of IM-induced gastric cancer.
Conclusions: Overall, our IM organoid biobank captured the heterogeneous nature of IM, revealing mechanistic insights on IM pathogenesis and progression, offering an ideal platform for studying early gastric neoplastic transformation and chemoprevention.
Study
EGAS00001007899
Targetable ERBB2 Mutations in Neurofibroma/Schwannoma Hybrid Nerve Sheath Tumors
Study
EGAS00001003776
Quantitative analysis of a novel DNA hypermethylation panel for lung cancer diagnosis
Study
EGAS00001007008
Array-based methylation analysis of SDHB-deficient pheochromocytoma and paraganglioma
Study
EGAS00001007844
Oesophageal adenocarcinoma whole exome and RNA-seq raw sequencing data
Study
EGAS00001005957
RNAseq analysis on metastatic Colorectal Cancer xenografts samples
Study
EGAS00001006492
Treated and control Patient Derived Xenografts of colorectal cancer (CRC) samples
Study
EGAS00001006973
CML_Discovery_Project
To identify mutations in CML
Study
EGAS00001000218
Targeted_gene_screen_of_drug_resistant_organoids
Sequencing of drug resistant organoids
Study
EGAS00001001797
Evolution_of_the_cancer_epigenome_in_myeloproliferative_neoplasms_TGS
Targeted sequencing of haematopoietic colonies.
Study
EGAS00001003863
NeoRhea Bulk RNA and Single nuclei RNA & ATAC
The aim of this study is to compare baseline and surgery samples of ER+/HER2- early breast cancer patients. Patients have been treated with endocrine therapy in combination with palbociclib. Samples have been collected pre and post treatment.
Study
EGAS50000001403
Whole-genome sequencing study of uveal melanoma
Uveal melanoma is the most common primary intraocular cancer, characterized by metastasis-related mortality. Here, we explored whole-genome sequences from 40 primary uveal melanomas to illustrate the landscape of genomic mutations and investigate their association with prognosis.
Study
EGAS50000001603
COIN CRC GWAS data
Genotype data from the COIN and COIN-B trials of advanced/metastatic colorectal cancer. Data provided in plink format, and has been quality controlled. Control data used was from the WTCCC2 project National Blood Donors (NBS) Cohort (EGAD00000000024).
Study
EGAS00001005421
Transcriptomic profiling of patient-derived xenografts and organoids in prostate cancer
Study
EGAS00001004675
A machine learning classifier for DNA repair defects using plasma DNA
Study
EGAS00001007006
AGECAN - Interespecies conservation of brain specific DNA methylation in aging and cancer
Study
EGAS00001004851
Multi-omics analysis of an individual with multiple pancreatic neuroendocrine tumours (panNETs)
Study
EGAS00001006722
Whole exome sequencing of chemotherapy-resistant muscle-invasive urothelial bladder cancer
Study
EGAS00001004231
Association of DNA-methylation profiles with immune responses in breast cancer patients
Study
EGAS00001004211
Selective Elimination of Immunosuppressive T cells in Patients with Multiple Myeloma
Study
EGAS00001004915
Initial cohort of 500 solid tumors screened for Basket of Baskets
Study
EGAS00001005893
Sequencing Data of HGSC patient-derived cell lines and organoids
Study
EGAS00001006557
Whole Exome and RNA sequencing of synchronous female bilateral breast cancers
Study
EGAS00001006910
Whole genome, RNA-seq and single-cell Multiome profile of multiple myeloma
Study
EGAS00001007014
Cell-to-cell variability in Myc dynamics drives transcriptional heterogeneity in cancer cells
Study
EGAS00001007091
Fragmentomics analyses of urinary cell-free DNA permit multi-urologic cancer detection and reduction in tissue biopsies for prostate cancer
This study demonstrated the close association between urinary cell-free DNA (cfDNA) methylation status and the fragmentation patterns in healthy controls and patients with various diseases. Fragmentomics-based methylation analysis (FRAGMA) enables accurate estimation of methylation levels in urinary cfDNA, which is proved by paired bisulfite sequencing and non-bisulfite sequencing data. FRAGMA showed high accuracy in deducing tissue-of-origin of urinary cfDNA in transplantation patients and pregnant women. Moreover, FRAGMA showed great potential in the detection and classification of multiple cancers from the urinary system, including bladder, kidney, and prostate cancer. This study demonstrated that FRAGMA could be applied to improve current diagnostic strategies based on urine samples.
Study
EGAS50000001431
HiDEF-seq single-molecule sequencing of single-strand mismatches and damage
Our study sought to resolve, with single-molecule fidelity, the mismatches and damage events that precede DNA mutations. Using a novel single-molecule, long-read sequencing method (HiDEF-seq) we detect base substitutions when present in either one or both DNA strands. We also detect cytosine deamination, a common type of DNA damage, with single-molecule fidelity. This study profiled 134 samples from diverse tissues, including from individuals with cancer predisposition syndromes. These samples revealed single-strand mismatch and damage signatures. Since double-strand DNA mutations are only the endpoint of the mutation process, our approach enables new studies of how mutations arise in a variety of contexts, especially in cancer and aging.
Study
EGAS50000000318
Field_effect_of_healthy_and_diseased_livers_WGS
Recent work in the Campbell group has revealed somatic mutations present in normal, non-cancerous human skin. A subset of the mutations conferred selective advantages to the host cells, leading to clonal expansions and raising the risk for future cancer development. Capturing such somatic mutations in normal tissue is important to advance our understanding about carcinogenesis and could provide prospective medical insights.
In this project, our goal is to detect somatic mutations in normal (pre-cancerous) liver tissue. Using Laser Microdissection technology, we will dissect individual liver lobules from patient samples and submit these to sequencing. For each patient sample, we aim to sequence multiple lobules to characterise the mutagenic burden. Samples will be taken from patients with different liver disease aetiologies, including alcoholism and obesity, with a view on distinguishing the prevalent mutation types occurring in each disease context.
We will perform both whole genome and targeted sequencing, initially using the WTSI cancer panel. Later we aim to use a novel bait set that captures both cancer genes as well as genes relevant to the non-cancerous samples (ie. genes implicated in hereditary disorders, immune sequences).
Study
EGAS00001002413
The genomic imprint of cancer therapies helps timing the formation of metastases
Study
EGAS00001003416
Mixed Histology Lung Cancers Driven by Transcriptomic Features rather than Genomic Characteristics
Study
EGAS00001005140
Genomics-based characterization and personalized treatment in pleural and peritoneal mesothelioma
Study
EGAS00001007294
Targeted next-generation sequencing of 13 chordoid gliomas of the third ventricle
Study
EGAS00001002733
Multiscale heterogeneity in gastric adenocarcinoma evolution is an obstacle to precision medicine
Study
EGAS00001004525
TK-EPN862 - Patient-dervied xenograft model of Posterior Fossa A Ependymoma - WGS
Study
EGAS00001006843
CGP_CORE_CELL_LINES___RNA_seq
Graham to complete
Study
EGAS00001000828
Primary_angiosarcoma_Whole_Genome_Sequencing
Whole genome sequencing of primary angiosarcoma
Study
EGAS00001000851
Stromal cell diversity associated with immune evasion in human triple‐negative breast cancer
Study
EGAS00001005061
Detection of Gene Fusions using Targeted Next-Generation Sequencing – a Comparative Evaluation
Study
EGAS00001004934