4821 results for "*oma"

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• Exome Sequencing of Multiple Localised Spiradenoma and Spiradenocarcinoma

  Tumor samples were microdissected from formalin-fixed, paraffin-embedded tissue and genomic DNA was extracted. DNA libraries were generated using xGen ssDNA & Low-Input DNA Library Preparation Kit (IDT). The libraries were enriched for the exome using xGen Exome Hyb Panel (IDT) and sequenced on DNBSEQ G400RS.

  Dataset EGAD50000000788

• BAM files from whole-genome sequencing of 3 agressive B-cell lymphoma tumour and non-tumor samples

  This dataset contains BAM files from whole-genome sequencing (WGS) of 3 agressive B-cell lymphoma tumour samples for cases 1, 6, and 7 as well as the corresponding non-tumor whole-genome sequencing BAM files.

  Dataset EGAD50000000800

• BAM files from capture-based targeted sequencing of 12 agressive B-cell lymphoma tumour samples (IG-MCL-panel)

  This dataset contains BAM files from capture-based targeted sequencing of 12 agressive B-cell lymphoma tumour samples for cases 1 to 6 and 8 to 13. The sequencing panel used is a MCL-oriented panel containing 159 genes.

  Dataset EGAD50000000801

• BAM files from capture-based targeted sequencing of 4 agressive B-cell lymphoma tumour samples (DLBCL-panel)

  This dataset contains BAM files from capture-based targeted sequencing of 4 agressive B-cell lymphoma tumour samples for cases 2, 3, 4 and 13. The sequencing panel used is a DLBCL-oriented panel containing 136 genes, described in Mozas P. et al., Hematol Oncol 2023.

  Dataset EGAD50000000802

• BAM files from whole-exome sequencing of 5 agressive B-cell lymphoma tumour samples

  This dataset contains BAM files from whole-exome sequencing (WES) of 5 agressive B-cell lymphoma tumour samples for cases 2, 3, 4 and 5. For case 2, non-tumor whole-exome sequencing is also available.

  Dataset EGAD50000000803

• Immune signature of malignant melanoma in pregnancy

  Melanoma is a highly immunogenic malignancy and there is a deep-rooted notion among clinicians that a probable systemic immunosuppressed state during pregnancy would negatively influence melanoma related prognosis. To test this hypothesis on a more fundamental level, we collected a unique set of melanoma tumor samples and performed RNAseq to draw comparisons between the immune cell infiltrate of pregnant patients and non-pregnant matched controls. We found that there is indeed no differential expression of any immune cell subset. This underscores the notion that the supposed immunosuppressive state of pregnancy does not hamper the anti-tumor immune response.

  Study EGAS50000000492

• Pregnancy-associated melanoma

  The aim of this project is to assess differences in intratumoral immune composition in pregnant melanoma patients versus non pregnant melanoma controls. Samples (N=25) were obtained from a local patient database. From archived FFPE we isolated RNA and performed NGS and bio-informatica data-analysis.

  Dataset EGAD50000000706

• Recurrent CLTC::SYK fusions and CSF1R mutations in juvenile xanthogranuloma of soft tissue

  In this study, the genomic landscape of extracutaneous juvenile xanthogranuloma (JXG) was analyzed. By leveraging the Dutch Nationwide Pathology Databank (Palga), tumor samples were obtained from different academic medical centers in the Netherlands. The study was approved by the Palga Scientific Council and Privacy Committee (LZV-2016-183) and the Institutional Review Board of Leiden University Medical Center (B19.074). In addition, the study was approved by the Biobank and Data Access Committee of the Princess Máxima Center for Pediatric Oncology (PMCLAB2024.0512). Provided are whole transcriptome sequencing (WTS) data of 3 histiocytic tumors with CLTC::SYK fusions. WTS was performed in the routine workflow of the Princess Máxima Center for Pediatric Oncology (as described in Hehir-Kwa, et al. JCO Precis Oncol 2022). RNA was derived from formalin-fixed paraffin-embedded tumor tissue (n=1) or from frozen tumor tissue (n=2).

  Study EGAS50000000584

• mRNA-Sequencing of 73 primary multiple myeloma (MM) samples and human MM cell lines

  mRNA-Sequencing of 73 primary multiple myeloma (MM) samples and human MM cell lines before and after siRNA-mediated knockdown of ADAM8 (n=5 cell lines), ADAM9 (n=7 cell lines) and ADAM15 (n=5 cell lines). Paired-end sequencing was performed on a NovaSeq (Illumina). Fastq and bam files are provided for each sample.

  Dataset EGAD50000000575

• Reconstructing oral cavity tumor evolution through brush biopsy

  Oral potentially malignant disorders (OPMDs) with genomic alterations have a heightened risk of evolving into oral squamous cell carcinoma (OSCC). Currently, genomic data are typically obtained through invasive tissue biopsy. However, brush biopsy is a non-invasive method that has been utilized for identifying dysplastic cells in OPMD but its effectiveness in reflecting the genomic landscape of OPMDs remains uncertain. This pilot study investigates the potential of brush biopsy samples in accurately reconstructing the genomic profile and tumor evolution in a patient with both OPMD and OSCC. We analyzed single nucleotide variants (SNVs), copy number aberrations (CNAs), and subclonal architectures in paired tissue and brush biopsy samples. The results showed that brush biopsy effectively captured 90% of SNVs and had similar CNA profiles as those seen in its paired tissue biopsies in all lesions. It was specific, as normal buccal mucosa did not share these genomic alterations. Interestingly, brush biopsy revealed shared SNVs and CNAs between the distinct OPMD and OSCC lesions from the same patient, indicating a common ancestral origin. Subclonal reconstruction confirmed this shared ancestry, followed by divergent evolution of the lesions. These findings highlight the potential of brush biopsies in accurately representing the genomic profile of OPL and OSCC, proving insight into reconstructing tumor evolution.

  Study EGAS50000000602